Vertical ridge augmentation with Ti‐reinforced dense polytetrafluoroethylene (d‐PTFE) membranes or Ti‐meshes and collagen membranes: 3‐year results of a randomized clinical trial

alexandrossfakianakis shared this article with you from Inoreader Vertical ridge augmentation with Ti‐reinforced dense polytetrafluoroethylene (d‐PTFE) membranes or Ti‐meshes and collagen membranes: 3‐year results of a randomized clinical trial via Clinical Implant Dentistry and Related Research Abstract Background The present study aimed to evaluate hard and soft tissue parameters around implants placed in augmented posterior mandible, comparing Ti-reinforced d-PTFE membranes with Ti-meshes covered with collagen membranes, after 3 years of follow-up. Materials and Methods Forty eligible patients were randomly assigned to group A (Ti-reinforced d-PTFE membrane) or group B (mesh covered with collagen membrane) for vertical ridge augmentation (VRA) and simultaneous implants. Implants were evaluated using specific peri-implant parameters for bone and soft tissues: probing pocket depth (PPD), modified plaque index (mPI), bleeding on probing (BoP), modified gingival index (mGI), thickness of keratinized tissue (tKT), width of keratinized tissue (wKT), fornix depth (FD), peri-implant bone level (PBL), interproximal bone peaks (IBP), marginal bone loss (MBL), interproximal bone loss (IBL). Results A total of 28 patients with 79 implants were evaluated after 3 years of follow-up. The mean value of MBL was 0.70 mm (group A = 0.73 mm; group B = 0.71 mm), while mean IBL was 0.54 mm (group A = 0.64 mm; group B = 0.40 mm). The treatment with meshes resulted not inferior to PTFE and their clinical results appeared similar. A strong correlation between PBL and IBP was confirmed. Both study groups showed an increase of tKT and wKT values. Conclusion In the posterior mandible, VRA using both techniques provides stable PBLs up to 3 years. A correct soft tissue management and a strict professional oral hygiene protocol play a crucial role on peri-implant health over time. View on Web

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Outcomes of relapsed/refractory extracranial germ cell tumors treated on conventional salvage chemotherapy without stem cell rescue: Experience from a tertiary cancer center

alexandrossfakianakis shared this article with you from Inoreader Outcomes of relapsed/refractory extracranial germ cell tumors treated on conventional salvage chemotherapy without stem cell rescue: Experience from a tertiary cancer center via Pediatric Blood & Cancer Abstract Background and aims Data on the outcome and prognostic indicators in extracranial relapsed/refractory germ cell tumors (rel/ref-GCTs) in children are limited to a few studies. This study looks at remission rates and outcomes of rel/ref-GCTs treated with conventional salvage chemotherapy (SC) regimens without stem cell rescue at a single center in the developing world. Methods Patients treated at our center from January 2009 to December 2018 were included. Risk at primary presentation was stratified as all completely excised teratomas and stage I gonadal tumors being low risk (LR); stage IV ovarian, stage III–IV extragonadal GCTs as high risk (HR), and the remaining as intermediate risk (IR). SC regimens were: vinblastine–ifosfamide–cisplatin/carboplatin or paclitaxel–ifosfamide–cisplatin/carboplatin, or cisplatin/carboplatin–etoposide–bleomycin. Local therapy was either surgery and/or radiotherapy. Results The analyzable cohort comprised 50 patients (44 = rel-GCTs; 6 = ref-GCTs) with a median age of 3.8 years and male:female ratio of 1.27:1. Primary location was ovary in 16 (32%), testicular in 10 (20%), and extragonadal in the rest (48%). Local, metastatic, and combined progression was noted in 28 (56%), 14 (28%), and eight (16%) patients, respectively, at a median time of 8.5 months. At a median follow-up of 60 months, the 5-year event-free survival (EFS) and overall survival (OS) of the entire cohort (n = 50) were 42.4% and 50.0%, respectively. In patients previously exposed to platinum analogs (n = 38), 5-year-EFS and OS were 27.7% and 31.7%, respectively. Local relapses did better when compared to metastatic and combined relapses (5-year EFS: 64% vs. 23% vs. 0%; p = .009). LR and IR tumors did better compared to HR (5-year EFS: 81.5% vs. 49.3% vs. 6.5%; p = .002). Patients with normalization of t umor markers after two cycles had a superior EFS (57.6% vs. 0%; p < .001). Relapsed tumors fared better than primary refractory GCTs (5-year EFS: 48.6% vs. 0%; p < .001). Conclusions Primary refractory GCTs, extragonadal rel-GCTs, and rel/ref-GCTs with a poor biochemical response did poorly with conventional SC and need alternative treatment strategies. The rel/ref-testicular GCTs had the best chance of salvage despite a second recurrence (5-year EFS and OS: 28.60% and 42.90%, respectively). View on Web

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Efficacy of carbon dioxide laser and caustic agent cauterisation for the focal granular myringitis: a randomised trial

alexandrossfakianakis shared this article with you from Inoreader Efficacy of carbon dioxide laser and caustic agent cauterisation for the focal granular myringitis: a randomised trial via Clinical Otolaryngology Abstract Objectives Granular myringitis (GM) is a troublesome disease with a high incidence of recurrence and relapse. CO2 laser vaporisation and trichloroacetic acid (TAA) have been applied in treating several otological diseases, both with favorable therapeutic efficacy. However, long-term therapeutic efficacy of both CO2 laser vaporisation and TAA cauterisation against GM have not yet been evaluated. We aimed to investigate the therapeutic potential of CO2 laser vaporisation and TAA cauterisation in GM management. Study Design Prospective, randomised study Participants A total of 88 GM patients who failed therapy with boric acid, alcohol, and glycerin ear drop (BAAG) otic solution between July 2009 and January 2018 were included. Participants were randomly assigned to receive CO2 laser vaporisation (n = 39) or TAA cauterisation (n = 49). Main outcome measures Main outcomes were treatment success, complications after four months of treatment, and recurrence within 4-12 months after treatment. Results The success rate was significantly higher in the CO2 group than in the TAA group (94.9% vs. 77.6%, p=0.023). After four months of treatment, the GM recurrence rate was comparable between the two groups (13.5% vs. 18.4%, p=0.562). The CO2 laser group had one case of perforation and one case of severe vertigo, while one participant in the TAA cauterisation group experienced hearing loss. Conclusion Both TAA cauterisation and CO2 laser vaporisation are safe and effective treatments for GM. The success rate of CO2 laser vaporisation for treating GM is higher than that of TAA cauterisation. Recurrence rates are comparable within one year. This article is protected by copyright. All rights reserved. View on Web

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Functional and Symmetry Outcomes After Forehead Flap Reconstruction of Medial Peri‐Ocular Defects

alexandrossfakianakis shared this article with you from Inoreader Functional and Symmetry Outcomes After Forehead Flap Reconstruction of Medial Peri‐Ocular Defects via The Laryngoscope Orbital defects have a profound impact on orbital function and symmetry of the face and are difficult to reconstruct given the complexity of this area. The paramedian forehead flap is feasible for medial periorbital reconstruction with acceptable functional and symmetrical outcomes and low morbidity. Background Orbital defects have a profound impact on orbital function and symmetry of the face and are difficult to reconstruct given the complexity of this area. The paramedian forehead flap (PMFF) has not been well studied in reconstruction of orbital defects. Methods Retrospective review of patients who underwent reconstruction of periorbital defects with PMFF between 2016 and 2021. Variables were ocular adnexal asymmetry, functional outcomes, and orbital complications. Results Eighteen patients met inclusion criteria. Mean defect size was 11.1 ± 7.5 cm. The most common subsite involved was medial canthus in 88.9% of patients. There was no statistically significant difference between mean medial canthus to midline ratio and mean medial brow to midline ratio when compared to the assumed normal of 1. The medial canthus to pupil ratio and medial canthus to lateral canthus ratio had a statistically significant mean difference from 1.0 (p = 0.003 for both). In 22.2% of patients, the orbit was functional with impairment; the remaining had no impairment. Surgical sequelae occurred in 12/18 (66.7%) of patients, most commonly epiphora in 9/18 (50%) of patients, and ectropion in 5/18 (27.7%). Conclusion The PMFF is feasible for medial periorbital reconstruction with acceptable functional and symmetrical outcomes and low morbidity. Level of Evidence 4 Laryngoscope, 2023 View on Web

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Cardia and non‐cardia gastric cancer risk associated with Helicobacter pylori in East Asia and the West: A systematic review, meta‐analysis, and estimation of population attributable fraction

alexandrossfakianakis shared this article with you from Inoreader Cardia and non‐cardia gastric cancer risk associated with Helicobacter pylori in East Asia and the West: A systematic review, meta‐analysis, and estimation of population attributable fraction via Helicobacter Abstract Objectives To assess the region-specific relative risk of cardia/non-cardia gastric cancer (CGC/NCGC) associated with Helicobacter pylori (H. pylori) and quantify its contribution to gastric cancer burden using population attributable fraction (PAF). Methods PubMed, EMBASE, Web of Science, and Cochrane Central databases were searched by two reviewers until April 20, 2022. The association between H. pylori infection and NCGC/CGC was assessed using pooled odds ratios (ORs) with 95% confidence intervals (CIs). PAF was calculated using the formula of H. pylori prevalence and the pooled OR. Results One hundred and eight studies were included. A significant association was observed between H. pylori infection and NCGC in East Asia (OR, 4.36; 95% CI: 3.54–5.37) and the West (OR, 4.03; 95% CI: 2.59–6.27). Regarding CGC, a significant association was found only in East Asia (OR, 2.86; 95% CI: 2.26–3.63), not in the West (OR, 0.80; 95% CI: 0.61–1.05). For studies with a follow-up time of ≥10 years, pooled ORs for NCGC and CGC in East Asia were 5.58 (95% CI: 4.08–7.64) and 3.86 (95% CI: 2.69–5.55), respectively. Pooled OR for NCGC was 6.80 (95% CI: 3.78–12.25) in the West. PAFs showed that H. pylori infection accounted for 71.2% of NCGC, 60.7% of CGC in East Asia, and 73.2% of NCGC in the West. Conclusions Gastric cancer burden associated with H. pylori infection exhibits important geographical differences. Prolonged follow-up period could overcome the underestimation of the magnitude of the association between H. pylori infection and CGC/NCGC. Customized strategies for H. pylori screening and eradication should be implemented to prevent gastric cancer. View on Web

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Transmission routes and patterns of helicobacter pylori

alexandrossfakianakis shared this article with you from Inoreader Transmission routes and patterns of helicobacter pylori via Helicobacter Abstract Background and objective Helicobacter pylori (H. pylori), a gram-negative bacterium that colonizes the stomach, can cause chronic gastritis and peptic ulcers, as well as gastric cancer as a Class I carcinogen. However, the modes of H. pylori transmission are not clear. This review aims to clarify the transmission routes and patterns of H. pylori and identify efficacious prevention measures. Methods Studies of H. pylori transmission were identified using PubMed, the Web of Science, and Cochrane Central; the retrieval deadline was October 2022. Results The transmission routes of H. pylori are discussed, focusing on the five primary transmission routes, namely fecal–oral, oral–oral, gastric–oral, anal–oral, and genital–oral. We propose that H. pylori is contracted through multiple transmission routes. Additionally, we summarize the key transmission patterns of H. pylori, including person-to-person and animal-to-human transmission, as well as foodborne and occupational exposure. Conclusion Fecal–oral appears to be the most common H. pylori transmission routes. Although the oral–oral pathway is also important, the evidence does not support that this route of transmission is universal. The gastric–oral route occurs primarily in children and patients who are prone to vomiting. Meanwhile, the anal–oral and genital–oral routes remain hypothetical. Person-to-person and foodborne infections represent the predominant transmission patterns of H. pylori, whereas strong environmental and occupational limitations are associated with animal-to-human and occupational exposure. View on Web

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