Αρχειοθήκη ιστολογίου

Παρασκευή 10 Φεβρουαρίου 2023

Endoscopic Multiport Approach for Exenteration of the Infratemporal Fossa

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Endoscopic Multiport Approach for Exenteration of the Infratemporal Fossa

New minimally endoscopic multiport approach to infratemporal fossa. Step-by-step cadaveric dissection.


Objective

To demonstrate anatomic relationships pertinent to the endoscopic multiport approach to the infratemporal fossa (ITF). Discuss advantages and limitations of each individual approach.

Study Design

Cadaveric study.

Methods

Endoscopic and endoscopic-assisted endonasal transpterygoid, sublabial transmaxillary, endoscopic transorbital, and endoscopic transoral approaches to accessing the ITF were completed in five silicone-injected fresh cadaveric specimens (10 sides) with the assistance of 0, 30, and 450 rods-lens endoscopes. Image guidance was used to confirm and document the anatomical relationships encountered in each approach.

Results

The endonasal endoscopic transpterygoid approach provides better visualization and more direct exposure to median structures. Endoscopic-assisted sublabial transmaxillary approach enhances the field of exposure, angle of attack, and ease of instrumentation to the lateral part of the ITF. Endoscopic-assisted transorbital approach via the inferior orbital fissure provided cephalic and anterior access. Endoscopic-assisted transoral approach complements the access to lesions extending inferior to the hard palate or far lateral to the mandibular condyle.

Conclusions

A combination of minimal access infratemporal approaches can provide adequate exposure of the entire ITF while avoiding some of the morbidity associated with open approaches.

Level of Evidence

NA Laryngoscope, 2023

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Cross reactivity of SARS‐CoV‐2 with other pathogens, especially dengue virus: A historical perspective

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Abstract

Dengue is a vector borne viral disease caused by a Flavivirus whereas the COVID-19 pandemic was caused by a highly contagious virus, SARS-CoV-2 belonging to family Coronaviridae. However, COVID-19 severity was observably less in dengue endemic countries and vice versa especially during the active years of the pandemic (2019-2021). We observed that dengue virus (DENV) antibodies (Abs) could cross-react with SARS-CoV-2 spike antigen. This resulted in SARS-CoV-2 false positivity by rapid Ab test kits. DENV Abs binding to SARS-CoV-2 receptor binding domain (and the reverse scenario), as revealed by docking studies further validated DENV and SARS-CoV-2 cross-reactivity. Finally, SARS-CoV-2 Abs were found to cross-neutralize DENV1 and DENV2 in virus neutralization test (VNT). Abs to other pathogens like Plasmodium, were also cross-reactive but non-neutralizing for SARS-CoV-2. Here, we analyse the existing data on SARS-CoV-2 cross-reactivity with other pathoge ns, especially dengue to assess its impact on health (cross-protection?) and differential sero-diagnosis/surveillance.

This article is protected by copyright. All rights reserved.

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Immunogenicity of novel DNA vaccines encoding receptor‐binding domain (RBD) dimer‐Fc fusing antigens derived from different SARS‐CoV‐2 variants of concern

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Abstract

The continuously emerging of SARS-CoV-2 variants of concern (VOCs) led to a decline in effectiveness of the first-generation vaccines. Therefore, optimized vaccines and vaccination strategies, which show advantages in protecting against VOCs, are urgently needed. Here we constructed an optimized DNA vaccine plasmid containing built-in CpG adjuvant, and designed vaccine candidates encoding five forms of antigens derived from Wuhan-Hu-1. The results showed that plasmid with RBD dimer-Fc fusing antigen (2RBD-Fc) induced the highest level of RBD-specific IgG and neutralizing antibodies in mice. Then 2dRBD-Fc and 2omRBD-Fc vaccines, respectively derived from delta and omicron VOCs, were constructed. The 2dRBD-Fc induced potent humoral and cellular immune responses, while the immunogenicity of 2omRBD-Fc was low. We also observed that sequential immunization with 2RBD-Fc, 2dRBD-Fc and 2omRBD-Fc effectively elicited neutralizing antibodies against each immunized strain, and RBD-specific T cell responses. To be noted, the Wuhan-Hu-1, delta and omicron neutralizing antibody titers induced by sequential immunization were comparable to that induced by repetitive immunization with 2RBD-Fc, 2dRBD-Fc or 2omRBD-Fc respectively. The results suggest that sequential immunization with DNA vaccines encoding potent antigens derived from different VOCs, may be a promising strategy to elicit immune responses against multiple variants.

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Two-centre experience in the treatment of thyroglossal duct remnants using the modified muscle-sparing Sistrunk technique

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The Sistrunk procedure has long been the method of choice for treating patients with thyroglossal duct remnants (TDRs). However, the extent of the surgical resection in the suprahyoid segment of the TDR remains controversial, as this anatomical site is the origin of both disease recurrence and surgical morbidity. The aim of this two-centre retrospective cohort study was to investigate the outcomes of a modified muscle-sparing Sistrunk procedure in primary TDRs. The primary predictor was the surgical approach, and the outcome variable was the recurrence rate. (Source: International Journal of Oral and Maxillofacial Surgery)
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The risk of acute myocardial infarction among patients with laboratory-confirmed invasive pneumococcal disease: a self-controlled case series study

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Abstract
Background
Major cardiovascular events, including acute myocardial infarction (AMI), have been reported among patients with certain viral and bacterial infections. Yet, whether invasive pneumococcal disease (IPD) increases the risk of AMI remains unclear. We examined whether laboratory-confirmed IPD was associated with the risk of AMI.
Methods
We conducted a self-controlled case series analysis among adult Tennessee residents with evidence of a first AM I hospitalization (2003-2019). Patient follow-up started 1 year prior to the earliest AMI and continued through the date of death, 1 year after AMI or end of study (12/2019). Periods for AMI assessment included the 7 to 1 days before IPD-specimen collection (pre IPD detection), day 0 through day 7 after IPD-specimen collection (current IPD), the 8 to 28 days after IPD-specimen collection (post IPD), and a control period (all other follow-up time). We used conditional Poisson regression to calculate incidence rate ratios and 95% confidence intervals (CI) for each risk period compared to control periods using within-person comparisons.
Results
We studied 324 patients hospitalized for AMI with a laboratory-confirmed IPD within 1 year before or after the AMI hospitalization. The incidence of AMI was significantly higher during the pre-IPD detection period (IRR:10.29; CI:6.33-16.73) and current IPD (IRR: 92.95; CI:72.17-119.71) periods, but non-significantly elevated in the post -IPD risk period (IRR: 1.83; CI:0.86-3.91) compared to control periods. An elevated AMI incidence was also observed in the post-IPD control period (29 to 364 days after IPD) [IRR: 2.95; CI:2.01-4.32].
Conclusions
Hospitalizations with AMI were strongly associated with laboratory-confirmed IPD.
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Prevalence of ocular candidiasis and Candida endophthalmitis in patients with candidemia: A systematic review and meta-analysis

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Abstract
Background
Infectious diseases and ophthalmology professional societies have disagreed regarding ocular screening in patients with candidemia. This study aimed to summarize the current evidence on the prevalence of ocular candidiasis (OC) and Candida endophthalmitis (CE) according to the standardized definitions.
Methods
A literature search was conducted from the 1990s through October 16th, 2022, using PubMed, Emb ase, and SCOPUS. Pooled prevalence of ocular complications was derived from generalized linear mixed models. (PROSPERO CRD42022326610)
Results
A total of 70 and 35 studies were included in the meta-analysis for OC and concordant CE (chorioretinitis with vitreous involvement), respectively. This study represented 8,599 patients with candidemia who underwent ophthalmologic examination. The pooled prevalence [95% confidence interval] of OC, overall CE, concordant CE, and discordant CE were 10.7% [8.4%-13.5%], 3.1% [2.1%-4.5%], 1.8% [1.3%-2.6%], and 7.4% [4.5%-12%] of patients screened, respectively. Studies from Asian countries had significantly higher concordant CE prevalence of patients screened [95% CI] of 3.6% [2.9% - 4.6%] compared to studies from European countries of 1.4% [0.4% - 5%] and American countries of 1.4% [0.9% - 2.2%], p-value <0.01. Presence of total parenteral nutrition and C. albicans were associated with CE with p ooled odds ratios [95% CI] of 6.92 [3.58–13.36] and 3.02 [1.67–5.46], respectively.
Conclusion
Prevalence of concordant CE overall and among Asian countries was two-times and four-times higher than the prevalence previously reported by American Academy of Ophthalmology of < 0.9%, respectively. There is an urgent need to study optimal screening protocols and to establish joint recommendations by the Infectious Diseases and Ophthalmology Societies.
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Association of Primary Tumor Volume With Survival in Patients With T3 Glottic Cancer Treated With Radiotherapy

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This cohort study examines the association of primary tum or volume with oncologic outcomes in patients with T3 N0-N3 M0 glottic cancer treated with primary (chemo)radiotherapy.
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Decisional Conflict in Patients With Head and Neck Cancer

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This cohort study examines assess decisional conflict amo ng patients with head and neck squamous cell carcinoma, the association between decisional conflict and quality of life, and the degree of control patients experience in the decision-making process.
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Therapeutic Cancer Vaccines for Recurrent and Metastatic Head and Neck Cancer

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This review provides an overview of the clinical efficacy of various treatment modalities currently available for treatment of recurrent and metastatic head and neck squamous cell carcinoma.
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Risk Factors for Hearing Loss at Birth in Newborns With Congenital Cytomegalovirus Infection

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This cross-sectional study assesses the risk factors for hearing loss at birth in newborns with congenital cytomegalovirus.
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