Αρχειοθήκη ιστολογίου

Δευτέρα 21 Δεκεμβρίου 2020

Addiction Medicine

The Role of Cannabis Use in Suicidal Ideation Among Patients With Opioid Use Disorder
Objectives: Cannabis use is associated with suicide risk in the general population; however, it is unknown if this association is also present in patients with opioid use disorder (OUD). The purpose of this study is to investigate the association between cannabis use and suicidal ideation in patients with OUD. Methods: We conducted a multivariable logistic regression analysis to assess the association between cannabis use and suicidal ideation, amongst a large cohort of patients with OUD. Current cannabis use and suicidal ideation over the past 30 days were obtained by self-report. Results: Cross-sectional data from 2335 participants with OUD were included in the analysis, of whom 51% report current cannabis use. We found a positive association between cannabis use and suicidal ideation (OR = 1.41, 95% CI 1.11, 1.80, P = 0.005). We found that men (OR = 1.84, 95% CI 1.44, 2.35, P < 0.001), younger individuals (OR = 1.02, 95% CI 1.01, 1.03), P = 0.004), and that those with more symptoms of anxiety or depression (OR = 1.16, 95% CI 1.15, 1.18, P < 0.001) were more likely to report suicidal ideation. Conclusions: Cannabis use is associated with a heightened propensity for suicidal ideation amongst patients with OUD, who are already a high-risk population. Further research into the potential harms of cannabis use in this population is required given the prevalence of its use and potential benefits in mitigating opioid withdrawal. Send correspondence to Zainab Samaan, MBChB, MSc, DMMD, MRCPSych, PhD, Associate Professor Psychiatry and Behavioural Neurosciences, McMaster University Director, Clinician Investigator Program, Mood Disorders Program, St. Joseph's Healthcare Hamilton, 100 West 5th St, G104, Hamilton, Ontario L8N 3K7, Canada. E-mail: samaanz@mcmaster.ca. Received 29 June, 2020 Accepted 30 October, 2020 Dr. Samaan is supported by grants from CIHR Awards #156306 and #155404. The authors report no conflicts of interest. This is an open access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc-nd/4.0 © 2020 American Society of Addiction Medicine

Low Uptake of Secure Messaging Among Veterans With Experiences of Homelessness and Substance Use Disorders
Objectives: Persons who are homeless have significant health challenges and barriers accessing care. Secure messaging supports communication between patients and their providers through a web-based portal, but the acceptability of this technology among patients with high prevalence of substance use disorders (SUDs) is unknown. We examined secure messaging use among veterans with experiences of homelessness (VEHs), and determined factors associated with messaging use. Methods: We conducted a cross-sectional analysis of responses to a national survey of VEHs, administered by mail from March to October 2018 (response rate = 40.2%). One item assessed secure messaging use and satisfaction. We used multivariable logistic regressions to model secure messaging use, controlling for sociodemographics, medical conditions, housing indicators, and mental health and SUD diagnoses. Results: Of 5072 VEHs, 21% had ever used secure messaging and 87% of the subsample found messaging to be useful. Secure messaging was more commonly used by VEHs who were female, had some college education, those with ≥3 chronic medical conditions, depression, or posttraumatic stress disorder (all P < 0.001). Messaging was much less common for VEHs ages 55 to 64 or older, non-Latino Blacks, those receiving homeless-tailored primary care, and those with SUDs (all P < 0.001). VEHs with opioid use disorder were even less likely than those with other SUDs to use secure messaging (P = 0.047). Conclusions: Persons with homeless experiences might require assistance to engage with secure messaging technology. As health systems limit in-person care during a national pandemic, alternative solutions may be needed to facilitate health communications and prevent care disruptions for patients experiencing homelessness and SUDs. Send correspondence to Audrey L. Jones, PhD, Informatics, Decision-Enhancement, and Analytic Sciences (IDEAS) Center, VA Salt Lake City Health Care System, 500 Foothill Drive, MC151 Research, Salt Lake City, UT 84148. E-mail: Audrey.Jones3@va.gov. Received 6 May, 2020 Accepted 8 November, 2020 Supported by the Department of Veterans Affairs (VA) Health Services Research and Development (IIR 15–095); the VA, Veterans Health Administration, National Center on Homelessness Among Veterans; and the National Center for Advancing Translational Sciences of the National Institutes of Health under Award Number UL1TR002538 and KL2TR002539. Dr. Varley reported receiving income from Heart Rhythm Clinical Research Solutions. Dr. Kertesz and Dr. Gordon reported receiving personal fees from UpToDate, the California Society of Addiction Medicine, the Howard Center, the Centre for Addiction and Mental Health, and Ascension/St. Vincent's Health System; owning stock in CVS Health, Thermo Fisher Scientific, and Zimmer Biomet; and that his spouse privately owns stock in Abbott, Merck and Co, and Johnson & Johnson. No other disclosures were reported. The authors thank Ms. April Hoge (VA Birmingham Medical Center) and Dr. Young-il Kim (University of Alabama at Birmingham School of Medicine) for project assistance, data management, and statistical guidance. The supporting organizations had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication. The views expressed in this article are those of the authors and do not necessarily reflect the position or policy of the Department of Veterans Affairs, the National Institutes of Health, or the United States government. Audrey L. Jones ORCID ID: 0000-0003-1533-7469; Adam J. Gordon ORCID ID: 0000-0002-2453-8871; Stefan G. Kertesz ORCID ID: 0000-0001-6101-8421. The authors report no conflicts of interest. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.journaladdictionmedicine.com). © 2020 American Society of Addiction Medicine

Use of Electronic Health Record Data to Estimate the Probability of Alcohol Withdrawal Syndrome in a National Cohort of Hospitalized Veterans
Objectives: Inpatient alcohol withdrawal syndrome (AWS) is common and early treatment improves outcomes, but no prior study has used electronic health record (EHR) data, available at admission, to predict the probability of inpatient AWS. This study estimated the probability of inpatient AWS using prior-year EHR data, hypothesizing that documented alcohol use disorder (AUD) and AWS would be strongly associated with inpatient AWS while exploring associations with other patient characteristics. Methods: The study investigated patients hospitalized ≥24 hours on medical services in the Veterans Health Administration during 2013 using EHR data extracted from the Veterans Health Administration Corporate Data Warehouse. ICD-9-CM diagnosis code, demographic, and healthcare utilization data documented in the year before admission defined prior-year AUD, AWS, and other factors associated with inpatient AWS. The primary outcome, inpatient AWS, was defined by inpatient ICD-9-CM codes. Results: The unadjusted probability of AWS was 5.0% (95% CI 4.5%–5.4%) among 209,151 medical inpatients overall, 26.4% (95% CI 24.4%–28.4%) among those with prior-year AUD, and 62.5% (95% CI 35.2%–39.7%) among those with prior-year AWS. Of those with AWS, 86% had documented prior-year AUD and/or AWS. Other patient characteristics associated with increased probability of inpatient AWS (P < 0.001) were: male sex, single relationship status, homelessness, seizure, and cirrhosis. Conclusions: Although inpatient providers often use history to predict AWS, this is the first study in hospitalized patients to inform and validate this practice, showing that prior-year diagnosis of AUD and/or AWS in particular, can identify the majority of inpatients who should be monitored for AWS. Send correspondence to Tessa L. Steel, MD, MPH, Seattle-Denver Center of Innovation (COIN), VA Puget Sound Health Care System, Seattle Division, 1660 South Columbian Way S-152, Seattle, WA 98108. E-mail: tessita@uw.edu, @tessaLsteel. Received 14 September, 2020 Accepted 8 November, 2020 Supported by VA Puget Sound Health Care System Research & Development Associate Chief of Staff (ACOS) Pilot Grant Program, the Center of Excellence for Substance Abuse Treatment & Education (CESATE), and K24AA022128. The authors report no conflicts of interest. All authors had access to the data supporting this study and a role in writing the manuscript. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.journaladdictionmedicine.com). © 2020 American Society of Addiction Medicine

COVID-19 and Cannabidiol (CBD)
COVID-19 pandemic has resulted in devastating mortality and morbidity consisting of socioeconomic and health effects that have included respiratory/pulmonary, cardiovascular, mental health and neurological consequences such as anxiety, depression, and substance use. Extensive efforts are underway to develop preventive vaccines and therapeutics such as remdesivir, dexamethasone, convalescent plasma, and others to treat COVID-19 but many report residual mental health problems after recovery. Cannabis products such as cannabidiol (CBD) are being advertised for the treatment of COVID-19 associated mental health problems and substance use disorders. This commentary will briefly clear the myth that CBD can ameliorate a wide range of COVID-19 associated health effects including anxiety, depression, or any substance use disorder, and show that there is a clear lack of sufficient unbiased clinical evidence from well-designed double-blind, placebo-controlled clinical trials to prove the antianxiety or antidepression therapeutic properties of CBD and support its wide use as medicine to treat COVID-19- associated mental health conditions or substance use disorders. Finally, we suggest that addiction physicians must play an important role in dealing with their patients requesting CBD prescription for treating any of these conditions. Send correspondence to Jag H. Khalsa, MS, PhD, 24924 McNair Place, ALDIE, VA 20105-5572. E-mail: jkhalsa@yahoo.com; jag.khalsa@gmail.com; jag.khalsa@nih.gov. Received 12 July, 2020 Revised 8 October, 2020 Accepted 14 October, 2020 Support by GB: Samaritan/Day Top Village; SBM: R01NS066801; R01AG 054325; SK: Grant 5R01DA 043396. Research grants to the institution from Merck, Inc., Gillead Sciences, and Airbutus pharmaceuticals. Other authors report no conflicts of interest. © 2020 American Society of Addiction Medicine

COVID-19 Social Distancing and Online Mutual Help Engagement for Alcohol Use Recovery
Introduction: COVID-19 and associated social distancing has presented challenges for individuals engaging in face-to-face mutual help groups (MHGs) such as Alcoholics Anonymous for alcohol use recovery. Online MHGs may be particularly appealing to individuals with limited access or inclination to attend in-person MHGs. We examined engagement within the popular "StopDrinking" online MHG, hypothesizing that engagement would increase due to demand for virtual peer support as COVID-19 social distancing progressed. Methods: We collected publicly available engagement data for StopDrinking from February 19, 2018 through April 30, 2020 while considering March and April of 2020 as months initially impacted by voluntary or mandated COVID-19 social distancing. Using seasonal autoregressive integrated moving average models, we predicted daily engagement for this social distancing time period based on all available engagement data collected before April 2020. Kalman filtering with 95% prediction limits was employed to define significant thresholds for observed data to reside within. Results: All days of observed engagement in March and April 2020 were lower than corresponding predicted values. Observed engagement fell below the lower 95% prediction limit for 36% of days, with 15 days in March and 7 days in April having significantly lower than predicted engagement. Conclusions: Relatively low activity on StopDrinking may signal broader population trends of problematic alcohol use and recovery disengagement during the initial COVID-19 social distancing timeframe. Continued investigation of online MHGs is needed to understand their potential for monitoring population health trends and to understand how such groups might support alcohol use recovery in contexts of crisis and isolation. Send correspondence to Jason B. Colditz, MEd, 230 McKee Place, #600, Pittsburgh, PA 15213. E-mail: colditzjb@pitt.edu. Received 23 July, 2020 Accepted 21 November, 2020 The authors report no conflicts of interest. © 2020 American Society of Addiction Medicine

Understanding Contraceptive Needs of Women Who Inject Drugs in Orange County: A Qualitative Study
Objectives: Women with opioid use disorder experience higher rates of unintended pregnancy compared with the general US population. Our aim was to examine the factors that may affect access to desired contraception for women who use injection drugs. Methods: Using purposive sampling, we conducted semi-structured interviews pertaining to contraceptive use with 14 women ages 18 to 44 who were current users of injection drugs living in Orange County, CA between March and December 2019. Interviews were transcribed, coded, and analyzed using grounded theory. Results: Participants discussed logistical barriers, including homelessness and lack of transportation, as well as perceived barriers, such as a belief in the inability to become pregnant while using drugs, that affect access to contraceptive care. Women also discussed the factors that motivate them to use contraception despite these barriers, including the desire for sobriety before becoming pregnant and fear of harming a fetus while using substances. Some participants expressed feeling uncomfortable disclosing substance use to their healthcare providers out of concern for stigmatization. Several points of access for contraceptive care were elucidated, including visits for primary and postpartum care, as well as in carceral spaces. Finally, participants expressed a desire to obtain contraceptive services at a local syringe exchange program due to trusting relationships with providers and increased ease of access. Conclusions: Our findings highlight several causative factors for the unmet contraceptive need among women who use injection drugs, and suggest that syringe exchange programs represent a unique access point for the provision of contraceptive care for this population. Send correspondence to Orli K. Florsheim, MD, University of New Mexico School of Medicine, Department of Family and Community Medicine, 1 University of New Mexico, Albuquerque, NM 87131, United States. E-mail: oflorsheim@salud.unm.edu. Received 15 August, 2020 Accepted 15 November, 2020 This work was supported by the National Center for Research Resources and the National Center for Advancing Translational Sciences, National Institutes of Health, through Grant UL1TR0001414. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH. The authors have no conflicts of interest to disclose. © 2020 American Society of Addiction Medicine

Cannabis Use During the COVID-19 Pandemic in Canada: A Repeated Cross-sectional Study
Objectives: In the context of the ongoing coronavirus disease pandemic in Canada, we aimed to (1) characterize trends in cannabis use in the overall population; and (2) characterize patterns of and identify risk characteristics associated with an increase in cannabis use among those who used cannabis. Methods: Data were obtained from three waves of an online, repeated cross-sectional survey of adults residing in Canada (May 08–June 23, 2020; N = 3012). Trends were assessed using Cochran-Armitage and chi-square tests, and risk characteristics were identified using logistic regression analyses. Results: Cannabis use in the overall population remained stable during the months of May and June. Among those who used cannabis, about half increased their cannabis use compared to before the start of the pandemic. This proportion of an increase in cannabis use among those who used cannabis remained consistent across the survey waves. Risk characteristics associated with higher odds of an increase in cannabis use included residence in the central region (Odds ratio, 95% confidence intervals: 1.93, 1.03–3.62), being 18 to 29 years old (2.61, 1.32–5.17) or 30 to 49 years old (1.85, 1.07–3.19), having less than college or university education (1.86, 1.13–3.06) and being somewhat worried about the pandemic's impact on personal finances (1.73, 1.00–3.00). Conclusions: A large proportion of those who used cannabis have increased cannabis use during the pandemic, suggesting a need for interventions to limit increased cannabis use, policy measures to address cannabis-attributable harms, and continued monitoring of cannabis use during and after the pandemic. Send correspondence to Sameer Imtiaz, PhD, Institute for Mental Health Policy Research, Centre for Addiction and Mental Health, 2035B - 33 Russell Street, Toronto, Ontario, M5S 2S1, Canada. E-mails: sameer.imtiaz@camh.ca, sameer.imtiaz@gmail.com. Received 16 July, 2020 Accepted 21 November, 2020 Delvinia provided in-kind support for the data collection. Sameer Imtiaz, Samantha Wells, Hayley Hamilton, and Tara Elton-Marshall acknowledge funding from the Canadian Institutes of Health Research and Canadian Centre on Substance Use and Addiction (Partnerships for Cannabis Policy Evaluation Team Grant), and Sameer Imtiaz, Jürgen Rehm and Tara Elton-Marshall acknowledge funding from the Canadian Institutes of Health Research's Institute of Neurosciences, Mental Health and Addiction (Canadian Research Initiative on Substance Misuse Ontario Node Grant [SMN-13950]). The funders had no role in study design, data collection, and analysis, decision to publish, or preparation of the manuscript. The authors report no conflicts of interest. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.journaladdictionmedicine.com). © 2020 American Society of Addiction Medicine

Barriers and Facilitators to Buprenorphine Prescribing for Opioid Use Disorder in the Veterans Health Administration During COVID-19
No abstract available

Discontinuing Methadone and Buprenorphine: A Review and Clinical Challenges
This paper offers a review and recommendations for clinicians working with patients interested in discontinuing opioid agonist treatment. As buprenorphine/naloxone has gained widespread acceptance for opioid addiction, many treatment providers and patients have a range of hopes and expectations about its optimal use. A surprising number assume buprenorphine/naloxone is primarily useful as a medication to transition off illicit opioid use, and success is partially defined by discontinuing the medication. Despite accumulating evidence that a majority of patients will need to remain on medication to preserve their gains, clinicians often have to address a patient's fervent desire to taper. Using the concept of "recovery capital," our review addresses (1) the appropriate duration of opioid agonist treatment, (2) risks associated with discontinuing, (3) a checklist that guides the patient through self-assessment of the wisdom of discontinuing opioid agonist treatment, and (4) shared decision making about how to proceed. Send correspondence to Joan E. Zweben, PhD, 714 Spruce Street Berkeley, CA 94707; E-mail: joan.zweben@gmail.com Received 21 April, 2020 Accepted 10 November, 2020 Supported in part by the second author's Fulbright-Canada Fellowship while at the University of Calgary, Calgary, Alberta, Canada. Additional support through NIH U10DA15815, R25DA028567, and R25DA035163. The authors report no conflicts of interest. Written work prepared by employees of the Federal Government as part of their official duties is, under the U.S. Copyright Act, a "work of the United States Government" for which copyright protection under Title 17 of the United States Code is not available. As such, copyright does not extend to the contributions of employees of the Federal Government. © 2020 American Society of Addiction Medicine

Impacts of the COVID-19 Shutdown on Gambling Patterns in Australia: Consideration of Problem Gambling and Psychological Distress
Objectives: The COVID-19 pandemic reduced access to gambling and contributed to widespread psychological distress. Psychological distress is a known risk factor for problem gambling as it can motivate excessive gambling as a coping response. The availability of gambling is considered a factor in maintaining problems. This paper aimed to investigate the impact of the shutdown of gambling venues on Australians, particularly among those vulnerable to mental health problems and gambling disorder. Methods: Australian adults who had gambled at least once in the past 12 months (N = 764, 85.2% male) completed an online cross-sectional survey. Self-report measures retrospectively assessed typical monthly gambling frequency and expenditure before and after the COVID-19 venue shutdown, problem gambling, and psychological distress. Results: Significant median decreases in gambling frequency were observed, both online and overall. No relationship was found between psychological distress and baseline or increases in gambling. Greater problem gambling severity was related to higher baseline gambling, but not to increases in gambling. Exploratory analysis showed that individuals engaged in moderate-risk gambling, but not problem gambling, were more likely to report increased gambling frequency compared to nonproblem and low-risk gamblers combined. Conclusions: Findings provide important insights into how changes in availability influence gambling participation, and for understanding the effectiveness of forced restrictions and venue exclusion strategies. Most people moderated their gambling when venue-based gambling was unavailable and opportunities for sports betting were limited. However, harms experienced by individuals with some gambling problems may have been exacerbated during the period of limited access. Policies to enhance prevention and treatment of gambling problems are necessary even when availability is reduced. Send correspondence to Sally M. Gainsbury, PhD, Faculty of Science, School of Psychology, Brain and Mind Centre, Gambling Treatment and Research Clinic, The University of Sydney, 94 Mallett Street, Camperdown NSW 2050, Australia. E-mail: sally.gainsbury@sydney.edu.au Received 13 August, 2020 Accepted 15 November, 2020 Supplemental digital content is available for this article. Direct URL citation appears in the printed text and is provided in the HTML and PDF versions of this article on the journal's Web site (www.journaladdictionmedicine.com). Supported by the Gambling Treatment and Research Clinic at the University of Sydney. Over the last three years (2017–2020), Dr. Gainsbury has worked on projects that have been received funding and in-kind support through her institution from Australian Research Council, NSW Liquor and Gaming, Svenska Spel Research Council, Responsible Wagering Australia, Australian Communication and Media Authority, Commonwealth Bank of Australia, National Association for Gambling Studies, GameCo, ClubsNSW, Crown Resorts, Wymac Gaming. Dr. Gainsbury is currently a member (2019–20) of the National Council on Problem Gambling International Advisory Board (Singapore) and receives an honorarium for this role as well as travel expenses to attend an annual meeting. She is a member of the Steering Committee for Remote Gambling Research and the Independent Research Oversight Panel both run by GambleAware, which provide an honorarium. Dr. Gainsbury has received honorarium directly and indirectly for research, presentations, and advisory services from Credit Suisse, Oxford University, ClubsNSW, Clubs4Fun, Centrecare WA, Gambling Research Exchange Ontario, Crown, Department of Social Services, Community Clubs Victoria, Financial and Consumer Rights Council, Australian Communications and Media Authority, Manitoba Gambling Research Program, VGW Holdings, Nova Scotia Provincial Lotteries and Casino Corporation, Ministry of Health, Clayton Utz, Greenslade, Generation Next. Dr. Gainsbury has received travel expenses to attend meetings from Franklin Women, GambleAware, Community Clubs Victoria, Centrecare WA, Financial and Consumer Rights Council, Stiftelsen Nordiska Sällskapet för Upplysning om Spelberoende, Generation Next, Alberta Gambling Research Institute, QLD Treasury, Responsible Gambling Council. Thomas Swanton has received a PhD scholarship and research grant funded under the NSW Government's Responsible Gambling Fund Research Capacity Grants, with support from the NSW Office of Responsible Gambling. He has received honoraria for research advisory services from GambleAware, an independent UK charity that seeks to minimize gambling harms and which receives voluntary donations from the gambling industry. Alexander Blaszczynski has conducted research funded directly by the Australian or international government, or government-related funding agencies, and industry operators. These include Gambling Research Exchange Ontario, ClubsNSW, Dooleys Club Lidcombe, Aristocrat Leisure Industries, Australian Communications Media Authority, Gaming Technologies Association, Gambling Research Australia, Responsible Wagering Australia, Commonwealth Bank, NSW Department of Trade and Investment (NSW Office of Liquor, Gaming and Racing), La Loterie Romande (Switzerland), Camelot (United Kingdom), La Française des Jeux (France), Loto-Quebec (Canada), and National Lottery (Belgium), and the National Association for Gambling Studies. He is on the responsible gambling advisory panel for Crown Casino. He has received honorariums from Manitoba Gambling Research Program and GambleAware (formerly UK Responsible Gambling Trust) for grant reviews, and royalties from several publishers for books and book chapters. He has also received travel and accommodation expenses from Leagues Clubs, Gambling Research Exchange Ontario, USA National Council on Problem Gambling, Japan Medical Society for Behavioural Addiction, Le Comité d'organisation Congrès international sur les troubles addictifs, Victorian Responsible Gambling Foundation, North American Association of State and Provincial Lotteries, and New Horizons (British Columbia Lottery Corporation to attend conferences and meetings. Martin T Burgess reports no conflicts of interest. The University of Sydney Human Research Ethics Committee provided ethical approval for the study (protocol number 2019/213). Author contributions: SG: Conceptualisation; Methodology; Investigation; Writing – Original Draft, Review & Editing; Supervision. TS: Conceptualisation; Methodology; Investigation; Formal analysis; Writing – Original Draft, Review & Editing; Project administration. MB: Methodology; Formal analysis; Writing – Review & Editing; Visualisation. AB: Conceptualisation; Methodology; Investigation; Writing – Review & Editing; Supervision. Preregistration statement: The hypotheses and confirmatory analysis plan relating to this study were preregistered on Open Science Framework before analysis of the data: https://osf.io/tskdq. © 2020 American Society of Addiction Medicine


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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,
Telephone consultation 11855 int 1193,

Craniofacial Surgery

Potential In Vitro Tissue-Engineered Anterior Cruciate Ligament by Copolymerization of Polyvinyl Alcohol and Collagen
Background and Purpose: Suitable tissue-engineered scaffolds to replace human anterior cruciate ligament (ACL) are well developed clinically as the development of tissue engineering. As water-soluble polymer compound, polyvinyl alcohol (PVA) has been wildly used as the materials to replace ACL. The aim of this study was to explore the feasibility of constructing tissue-engineered ACL by the copolymerization of PVA and collagen (PVA/COL). Methods: PVA and COL were copolymerized at a mass ratio of 3:1. The pore size and porosity of the scaffold were observed by electron microscope. The maximum tensile strength of the scaffold was determined by electronic tension machine. The cytotoxicity of the scaffold was evaluated by MTT assay. The morphology of ACL cells cultured on the surface of the scaffold was observed by inverted microscope. The degradation of the scaffold was recorded in the rabbit model. Results: The average pore size of the polymer scaffold was 100 to 150 μm and the porosity was about 90%. The maximum tensile strength of the scaffold material was 8.10 ± 0.28 MPa. PVA/COL could promote the proliferation ability of 3T3 cells. ACL cells were successfully cultured on the surface of PVA/COL scaffold, with natural growth rate, differentiation, and proliferation. Twenty-four weeks after the plantation of scaffold, obvious degradations were observed in vivo. Conclusion: The model of in-vitro tissue-engineered ACL was successfully established by PVA/COL scaffolds. Address correspondence and reprint requests to Zongsheng Yin, The First Affiliated Hospital of AnHui Medical University, No. 218, JiXi Road, ShuShan District, HeFei 230032, Anhui, People's Republic of China; E-mail: yzs12368@126.com Received 18 November, 2019 Accepted 8 July, 2020 The authors report no conflicts of interest. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.jcraniofacialsurgery.com). © 2020 by Mutaz B. Habal, MD.

Assessment of Freestyle Local Facial Perforator Flaps for Coverage of Facial Defects
Objective: To assess local freestyle facial perforator flaps in the reconstruction of small to medium-sized facial defects. Materials and methods: In a case series, local freestyle perforator flaps were used in Suez Canal University Hospital to reconstruct 28 facial defects in 26 patients between 2017 and 2019. Adequate perforators were identified near those defects and flaps were designed as propeller or VY advancement. Four scales from the FACE-Q (satisfaction with facial appearance, satisfaction with the outcome, psychological function, and appearance-related psychosocial distress) and 2 scales from the SCAR-Q (Appearance scale and Symptom scale) were used as well as the observer part of the Patient and Observer Scar Assessment Scale. The mean follow up period was 10 months. Results: Complete reconstruction was achieved in all cases with a high rate of patient satisfaction which was assessed by FACE-Q and SCAR-Q. Moreover, observer assessment by Patient and Observer Scar Assessment Scale score showed high patient satisfaction with the scars with a mean (SD) 15.5 (3.4) and there was a positive correlation between subjective and objective: results (r2 from 0.27 to 0.41, P < 0.01). Regarding complications, bulkiness occurred in 2 flaps, congestion in 2 flaps, dehiscence in 1 flap, and tip necrosis in 5 flaps. Accordingly, secondary intervention in the form of medicinal leech therapy was used in 3 flaps, delayed closure for the dehisced flap and debulking for 1 flap. Conclusions: Local freestyle perforator flap reconstruction is one of the recommended techniques for small to medium-sized facial defects which gives a high aesthetic outcome and patient satisfaction. Address correspondence and reprint requests to Mohamed A. Ellabban, MD, Suez Canal University Hospitals and Medical School, 4.5 Ring Road, Ismailia, Egypt; E-mail: mohamed.ellabban@med.suez.edu.eg Received 14 May, 2020 Accepted 1 June, 2020 The authors report no conflicts of interest. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.jcraniofacialsurgery.com). © 2020 by Mutaz B. Habal, MD.

Post-Cranioplasty Complications: Lessons From a Prospective Study Assessing Risk Factors
Complication rate related with cranioplasty is described as very high in most of relevant studies. The aim of our study was to try to identify possible factors, that could predict complications following cranioplasty. The authors hypothesized that some physical characteristics on the preoperative brain computed tomography (CT) scan can be predictive for complications. The authors carried out a prospective observational study. All patients were adults after decompressive craniectomy, planned for cranioplasty and had a brain CT scan the day before cranioplasty. Our data pool included demographics, reason of craniectomy, various radiological parameters, the time of cranioplasty after craniectomy, the type of cranioplasty bone flap, and the complications. Twenty-five patients were included in the study. The authors identified statistically significant correlation between time of cranioplasty after craniectomy and the complications, as well as between the type of cranioplasty implant and the complications. There was statistically significant correlation between complications and the distance of the free brain surface from the level of the largest skull defect dimension – free brain surface deformity (FBSD). Moreover, the correlation between FBSD and the time of cranioplasty was statistically significant. It seems that for adult patients with unilateral DC the shorter time interval between craniectomy and cranioplasty lowers the risk for complications. The risk seems to be decreased further, by using autologous bone flap. Low values of the FBSD increase the risk for complications. This risk factor can be avoided, by shortening the time between craniectomy and cranioplasty. Address correspondence and reprint requests to Eleni Tsianaka, MD, Department of Neurosurgery, University Hospital of Larissa, Viopolis, 41111, Larissa, Greece; E-mail: ariadniq@yahoo.gr Received 18 August, 2020 Accepted 18 November, 2020 The authors report no conflicts of interest. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.jcraniofacialsurgery.com). © 2020 by Mutaz B. Habal, MD.

Palatal Re-Repair With Z-Plasty in Treatment of Velopharyngeal Insufficiency of Syndromic and Nonsyndromic Patients With Cleft Palate
Background: Velopharyngeal insufficiency (VPI) often results from palatal shortening or insufficient levator function after cleft palate repair. Aims: To assess the efficacy of palatal re-repair with Z-plasty in treatment of VPI for patients with isolated cleft palate (ICP). Methods: This retrospective analysis comprised 130 consecutive patients who had ICP with VPI that required Z-plasty as secondary surgery between 2008 and 2017. Pre- and post-operative evaluation of velopharyngeal function was done perceptually and instrumentally by Nasometer. Results: Median patient age at Z-plasty was 6.8 years (range 3.0–20.1). Of the 130 patients, preoperatively VPI was severe in 73 (56%), mild-to-moderate in 55 (42%), and borderline in 2 (2%). Postoperatively, 105 (81%) of patients achieved adequate (normal or borderline) velopharyngeal competence and 16 (12%) required second operation for residual VPI. The success rate was 84% in nonsyndromic patients, 79% in nonsyndromic Pierre Robin sequence patients, and 58% in syndromic patients. In syndromic children, the speech outcome was significantly worse than in nonsyndromic children (P = 0.014). Complications included wound healing problems in 3 patients (2%), mild infection in 1 patient (1%), postoperative bleeding in 1 (1%), and postoperative fistula in 2 (2%). Conclusion: Palatal re-repair with Z-plasty is a safe operation for VPI correction in patients with ICP with a success rate of 81%. In syndromic patients, the procedure did not seem to work as well as in nonsyndromic patients. Address correspondence and reprint requests to Veera Ahti, MD, Helsinki Cleft and Craniofacial Center, Department of Plastic Surgery, Helsinki University Hospital, Finland; E-mail: veera.ahti@hus.fi Received 4 September, 2020 Accepted 18 November, 2020 The authors report no conflicts of interest. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.jcraniofacialsurgery.com). © 2020 by Mutaz B. Habal, MD.

Are Backyard Waterslides as Dangerous as Public Waterslides: A Review of 1,823 Head and Neck Injuries
The purpose of this study was to describe the characteristics and compare the severity of head and neck injuries between public and backyard waterslides. This was a 20-year cross-sectional study of the National Electronic Injury Surveillance System. Injuries from waterslides were included in this study if they involved the head, face, eyeball, mouth, neck, or ear. Patient and injury characteristics were compared by the type of waterslide using chi-squared and independent sample tests. A total of 1823 injury reports were identified (39.8% backyard waterslides and 60.2% public waterslides). The mean age at the time of injury was 13.2 years, and the majority of patients were white (74.2%) males (55.1%). The most common primary diagnoses were laceration (28.4%) and internal organ injury (27.2%). A greater proportion of backyard injuries involved the head (P < 0.01) and resulted in concussions (P < 0.01) or fractures (P = 0.04). The overall admission rate from the ED was 3.5%, and no fatalities were noted. There were no significant differences in admission rates between injuries from backyard and public slides. Fatal or serious head and neck injuries appear to be uncommon with waterslide injuries. Backyard waterslides pose a greater likelihood of cranial injury, and this may relate to differences in riding habits between public and private waterslides. Address correspondence and reprint requests to Kevin C. Lee, DDS, MD, Division of Oral and Maxillofacial Surgery, NewYork-Presbyterian/Columbia University Irving Medical Center, 630 West 168th Street, New York, NY 10032; E-mail: kcl2136@cumc.columbia.edu Received 27 September, 2020 Accepted 4 November, 2020 The authors report no conflicts of interest. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.jcraniofacialsurgery.com). © 2020 by Mutaz B. Habal, MD.

Application of Virtual Endoscopy in Microvascular Decompression of Trigeminal Neuralgia
Purpose: The main purpose of this study is to evaluate the accuracy of virtual endoscopy (VE) in microvascular decompression (MVD) for the treatment of trigeminal neuralgia (TN). Methods: A total of 30 TN patients aged 42 to 70 years were recruited from January 2015 to January 2019, and all patients were confirmed to have severe neurovascular compression (NVC) (≥degree 2) by magnetic resonance tomographic angiography (MRTA). Preoperative MRTA and enhanced CT were performed, and the data were imported into Stlview software for VE simulation of MVD. The reliability of VE, real endoscopy, and MRTA in evaluating the degree and position of MVD in TN patients was compared. Results: Virtual endoscopy is more reliable than MRTA in evaluating the degree of NVC, but both of them are reliable in determining the position of NVC in TN patients. Conclusions: Virtual endoscopy can be used in MVD for the treatment of TN, including preoperative diagnosis and risk evaluation, intraoperative guidance, and postoperative evaluation. Address correspondence and reprint requests to Minjie Chen, MD, Oral Surgery Department, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China; E-mail: 407102560@qq.com Received 7 October, 2020 Accepted 1 November, 2020 The authors report no conflicts of interest. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.jcraniofacialsurgery.com). © 2020 by Mutaz B. Habal, MD.

Examination of the Safe Zone in Mandibular Ramus Osteotomies
In the surgical procedures such as osteotomy to be applied to ramus of the mandible, care should be taken not to damage the inferior alveolar nerve (IAN). The safe zone, which is the area above and behind the mandibular foramen (MF), is the ramus of mandible area, where these surgeries can be performed without damaging the inferior alveolar neurovascular bundle. It was aimed to determine the safe zone in the ramus of mandible in the cone-beam computed tomography (CBCT) images of individuals. The CBCT images of 300 Turkish individuals between the ages of 18 to 65 were bilaterally and retrospectively evaluated. Three parameters on the sagittal and two parameters on the axial plane were measured. Additionally, two ratios were calculated which determined the superior and posterior part of the safe zone through the measured parameters. In this study, the safe zone was determined as the area where 55% of the upper part and 49% of the posterior part of the mandibular ramus. Determining the safe zone in surgical procedures to be applied to the ramus of mandible will help protect the neurovascular structures passing through the MF, reduce complications and increase the success rate of the surgical procedure. However, it is seen that there are few studies on this subject in the literature and there are some differences between these studies. The authors think that preoperative CBCT screening will be safer for each patient in the mandibular ramus osteotomies and more studies should be done on different populations to determine standard values. Address correspondence and reprint requests to Ilhan Bahşi, MD, PhD, Department of Anatomy, Faculty of Medicine, Gaziantep University, Gaziantep, Turkey; E-mail: dr.ilhanbahsi@gmail.com Received 8 October, 2020 Accepted 9 November, 2020 The authors declare no conflict of interest. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.jcraniofacialsurgery.com). © 2020 by Mutaz B. Habal, MD.

Accessory Cranial Suture Leading to Abnormal Head Shape
Accessory cranial sutures have been described in the literature and are most commonly associated with the parietal bone. These sutures are typically identified incidentally and there have been no reported cases of accessory cranial sutures leading to abnormal head shape. The authors present the case of a 3-month-old patient with multiple congenital anomalies and an accessory parietal suture leading to abnormal head shape. The patient was successfully treated with cranial orthotic therapy. To our knowledge, this is the first reported case of an accessory cranial suture leading to abnormal head shape. Address correspondence and reprint requests to Garrison A. Leach, MD, 200 W. Arbor Drive M/C 8890, San Diego, CA 92013-8890; E-mail: garrison.a.leach@gmail.com Received 9 October, 2020 Accepted 11 November, 2020 The authors report no conflicts of interest © 2020 by Mutaz B. Habal, MD.

Secondary Cervicofacial Soft Tissue Reconstruction With Upper Trapezius Myocutaneous Flap in "Frozen Neck" With Bone Flap and Reconstructive Plate Exposure
A frozen neck is a scarred neck with severe fibrosis with a loss of tissue planes secondary to prior irradiation with or without surgery. The purpose of this study was to evaluate the outcomes of cervicofacial reconstruction in patients with soft tissue defects and bone flap and reconstruction plate exposure with the upper trapezius myocutaneous flap. Fifteen oncologic patients with prior surgery and radiotherapy developed soft tissue dehiscence with bone and osteosynthesis material exposure. All patients had either a frozen neck or a vessel-depleted neck. The soft tissue defects were reconstructed, the osteosynthesis material was removed and the bone flap exposure was covered in all patients. One patient developed a seroma and 1 patient reported wound dehiscence. In terms of esthetic results, 6 patients referred a good esthetic result, whereas 8 patients referred a fair result and 1 patient a poor result. Two patients with prior radical neck dissection reported a poor functional result in the ipsilateral shoulder, previously to secondary reconstruction. Functional neck dissection was performed in 10 patients, 8 patients referred a good functional outcome and 2 patients reported a fair result. The upper trapezius flap is an extremely reliable source for secondary cervicofacial soft tissue reconstruction in "frozen neck." In comparison with other locoregional flaps, the upper trapezius flap fulfills all aesthetic and functional criteria for secondary cervicofacial soft tissue reconstruction. Address correspondence and reprint requests to Carlos Navarro Cuéllar, MD, PhD, Maxillofacial Surgery Department, Hospital General Universitario Gregorio Marañón, c/ Doctor Esquerdo 46, 28007, 28036, Madrid, Spain; E-mail: cnavarrocuellar@gmail.com Received 1 November, 2020 Accepted 18 November, 2020 The study and review of the medical records and data collection, and the subsequent analysis of the data collected is endorsed by the Hospital Ethics Committee at Gregorio Marañón General Hospital. The authors have obtained patient's permission. The authors have no conflicts of interest to disclose. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.jcraniofacialsurgery.com). © 2020 by Mutaz B. Habal, MD.

Skeletal Stability and Airway Changes After Maxillary Advancement Using a Rigid External Distraction System in Non-Growing Cleft Patients
Distraction osteogenesis (DO) is a highly effective technique for correction of severe maxillary hypoplasia, especially in patients with orofacial clefts and craniofacial syndromes. The purpose of this retrospective, longitudinal study was to assess long-term airway alterations after maxillary advancement using a rigid external distraction system (RED) in non growing cleft patients. Fifteen cleft patients (8 males and 7 females) aged from 14 to 25 years were included in this study. All of them were treated with a rigid external distraction system for maxillary advancement after a high Le Fort I osteotomy. To analyse airway changes lateral cephalograms were obteined before distraction (T0), immediately after distraction (T1) and 1 to 3 years and 3 months after distraction (T2). All the measurements were describled by means of median, minimum and maximum. In order to evaluate differences between each time interval, a Wilcoxon test associated to a Delta Cliff test was used to evaluate the effect size (level of significance adopted was 5%). A significant maxillary advancement and increased upper airway antero-posterior dimensions were observed after the distraction osteogeness process, as demonstrated by the difference between T1 and T0. No significant relapse at T2 was found. Lower airway and the airway at tip of uvula region did not display significant alterations. A significant maxillary advancement and increased antero-posterior upper airway dimension was measured immediately after maxillary distraction with rigid external distraction in non growing cleft patients. The findings were stable three years after distraction. Address correspondence and reprint requests to Alvaro Alfredo Figueroa, DDS, MS, Rush Craniofacial Center 1725 West Harrison Street, Suite 425, Chicago IL 60612, KLS Martin, Jacksonville, FL; E-mail: alvaro_figueroa@rush.edu Received 29 April, 2020 Accepted 14 August, 2020 AAF reports reciept of royalties from KLS Martin; the remaining authors report no conflicts of interest. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (www.jcraniofacialsurgery.com). © 2020 by Mutaz B. Habal, MD.


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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,
Telephone consultation 11855 int 1193,

Anesthesiology

Roadmap: one anesthesiology department's strategic approach to COVID-19
Purpose of review The COVID-19 pandemic has driven transformation in every aspect of the healthcare delivery system. The unpredictable onset and magnitude of COVID-19 infections resulted in wide gaps in preparedness for healthcare systems. The development of protocols to address both scarcity of resources and staff protection continues to be essential for risk mitigation. Recent findings The northeast region of the United States had a rapid early surge of COVID-19 infections leading to the exhaustion of critical care capacity. In addition, northeastern hospitals experienced decrease in elective surgical interventions, including organ transplantation. Limited availability of COVID-19 testing and personal protective equipment further fueled the pandemic. This commentary highlights a comprehensive innovative approach to addressing the operating room and hospital demands, as well as the shortages in resources and staffing during the pandemic. Summary The VCU Department of Anesthesiology operated at 40% of its regular operating room volume throughout the COVID-19 pandemic because of the increased demand from emergency cases. The delay in the peak surge allowed Virginia Commonwealth University, Department of Anesthesiology to develop a comprehensive infrastructure resulting in resulting is maximal workforce risk mitigation. Correspondence to Alice A. Tolbert Coombs, MD, MPA, FCCP, Department of Anesthesiology, Virginia Commonwealth University, Richmond, VA, USA. Tel: +1 804 512 6538; e-mail: Alice.coombs@vcuhealth.org Copyright © 2020 YEAR Wolters Kluwer Health, Inc. All rights reserved.


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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,
Telephone consultation 11855 int 1193,

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