Αρχειοθήκη ιστολογίου

Αλέξανδρος Γ. Σφακιανάκης
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5
Άγιος Νικόλαος Κρήτη 72100
2841026182
6032607174

Τετάρτη 20 Σεπτεμβρίου 2017

The folded postauricular flap: A novel approach to reconstruction of large full thickness defects of the conchal bowl

alertIcon.gif

Publication date: Available online 19 September 2017
Source:American Journal of Otolaryngology
Author(s): Ansley M. Roche, Martha Griffin, Ron Shelton, Mark L. Urken
Extensive subtotal full-thickness auriculectomy defects pose a challenge for the reconstructive surgeon. The posterior island flap (PIF), based on the posterior auricular artery, has been described as a reconstructive option for auricular defects, with reports describing a "pull-through" or "revolving door" technique to reconstruct subtotal partial thickness and full thickness auricular defects. These techniques may result in posterior "pinning" of the auricle. This patient is an 87-year-old male who presented after Mohs excision of squamous cell carcinoma of the conchal bowl, which resulted in a 4x4cm subtotal auriculectomy defect. A folded PIF was used to reconstruct the large full thickness defect, in a multistage manor. Post-operatively, the patient had a reconstructed auricle that was suitable for wearing hearing aids and glasses. We describe a novel technique of the folded PIF for an extensive full-thickness auricular defect, which utilizes a single, well camouflaged donor site, provides well-vascularized local tissue with excellent color match, and allows for the restoration of the post-auricular sulcus.



http://ift.tt/2xgieUl

Comparison of radiation doses imparted during 128-multislice CT-scanners and cone beam computed tomography for intra- and perioperative cochlear implant assessment

alertIcon.gif

Publication date: Available online 19 September 2017
Source:American Journal of Otolaryngology
Author(s): N. Guberina, U. Dietrich, D. Arweiler-Harbeck, M. Forsting, A. Ringelstein
PurposeTo examine radiation-doses imparted during multislice (MSCT) and cone-beam computed-tomography (CBCT) for perioperative examination of cochlear-implant insertion.MethodsRadiation-doses were assessed during standardized petrous-bone CT-protocols at different MSCT ((I) single-source CT-scanner Somatom-Definition-AS+, (II) 2nd generation of dual-source CT-scanner Somatom-Definition-Flash, (III) 3rd generation of dual-source CT-scanner Somatom-Force and at the CBCT Ziehm-Vision-RFD3D ((IV) (a) RFD-3D (Standard-modifier), (b) RFD-3D (Low-dose-modifier)). Image quality was examined by two radiologists appraising electrode-array placement, quality-control of cochlear-implant surgery and complications based on real patients' examinations (n=78).ResultsIn MSCT-setting following radiation-doses were assessed (CTDIw; DLP): (I) 21.5mGy; 216mGycm; (II) 19.7mGy; 195mGycm; (III) 12.7mGy; 127mGycm; in the CBCT setting radiation doses were distributed as follows: (IV) (a) 1.9mGy; 19.4mGycm; (b) 1.2mGy; 12.9mGycm. Overall, image quality was evaluated as good for both, MSCT- and CBCT-examinations, with a good interrater reliability (r=0.81).ConclusionCBCT bears considerable dose-saving potential for the perioperative examination of cochlear-implant insertion while maintaining adequate image quality.



http://ift.tt/2yd1DQr

Marital status as a predictor of survival in patients with human papilloma virus-positive oropharyngeal cancer

S01960709.gif

Publication date: Available online 19 September 2017
Source:American Journal of Otolaryngology
Author(s): Samuel J. Rubin, Diana N. Kirke, Waleed H. Eazzat, Minh T. Truong, Andrew R. Salama, Scharukh Jalisi
PurposeDetermine whether marital status is a significant predictor of survival in human papillomavirus-positive oropharyngeal cancer.Materials and methodsA single center retrospective study included patients diagnosed with human papilloma virus-positive oropharyngeal cancer at Boston Medical Center between January 1, 2010 and December 30, 2015, and initiated treatment with curative intent at Boston Medical Center. Demographic data and tumor-related variables were recorded. Univariate analysis was performed using a two-sample t-test, chi-squared test, Fisher's exact test, and Kaplan Meier curves with a log rank test. Multivariate survival analysis was performed using a Cox regression model.ResultsA total of 65 patients were included in the study with 24 patients described as married and 41 patients described as single. There was no significant difference in most demographic variables or tumor related variables between the two study groups, except single patients were significantly more likely to have government insurance (p=0.0431). Furthermore, there was no significant difference in 3-year overall survival between married patients and single patients (married=91.67% vs single=87.80%; p=0.6532) or 3-year progression free survival (married=79.17% vs single=85.37%; p=0.8136). After adjusting for confounders including age, sex, race, insurance type, smoking status, treatment, and AJCC combined pathologic stage, marital status was not a significant predictor of survival [HR=0.903; 95% CI (0.126,6.489); p=0.9192].ConclusionsAlthough previous literature has demonstrated that married patients with head and neck cancer have a survival benefit compared to single patients with head and neck cancer, we were unable to demonstrate the same survival benefit in a cohort of patients with human papilloma virus-positive oropharyngeal cancer.



http://ift.tt/2xgclWY

Neonatal BCG-vaccination and atopic dermatitis before 13 months of age. A randomised clinical trial

Abstract

Studies have suggested that Bacillus Calmette-Guérin (BCG) vaccination may reduce the risk of allergic diseases, including atopic dermatitis.

The Danish Calmette Study was conducted 2012-2015. Within 7 days of birth new-borns were randomised 1:1 to BCG or no BCG. Exclusion criteria were gestational age <32 weeks, birth weight <1000 g, known immunodeficiency or no Danish-speaking parent. Data were collected through telephone interviews and clinical examinations until 13 months.

Clinical atopic dermatitis was diagnosed in 466/2,052 (22.7%) children in the BCG group and 495/1,952 (25.4%) children in the control group (RR=0.90 (95% confidence intervals 0.80 to 1.00)). The effect of neonatal BCG vaccination differed significantly between children with atopic predisposition (RR 0.84 (0.74 to 0.95)) and children without atopic predisposition (RR 1.09 (0.88 to 1.37)) (test of no interaction, p=0.04).

Among children with atopic predisposition, the number-needed-to-treat with BCG to prevent one case of atopic dermatitis was 21 (12 to 76).

This article is protected by copyright. All rights reserved.



http://ift.tt/2wxGK61

Surgical treatment of painful inferior alveolar nerve injuries following endodontic treatment: a consecutive case series of seven patients

Abstract

Purpose

Injuries of the inferior alveolar nerve (IAN) related to endodontic treatment are being increasingly reported. However, consensus on the preferred intervention and the timing of and indications for surgical treatment is lacking. Here, we describe our experience with painful IAN injuries arising from endodontic treatment and requiring prompt microsurgical treatment.

Methods

Seven consecutive patients with painful IAN injuries were referred to the Maxillofacial Surgery Unit of San Paolo Hospital in Milan. All patients had undergone root canals endodontic treatment in the mandibular molar or premolar between 2007 and 2014. The time elapsed between injury and referral for surgical treatment ranged from 10 days to 20 months. Each patient was treated by one of several different microsurgical procedures, described herein.

Results

Overall, neurosensory status and IAN-related pain improved in all seven patients. The best results were obtained by IAN replacement with a sural nerve graft. However, complete sensory recovery was not achieved in any of the patients.

Conclusions

Although our sample includes only seven patients, early surgical treatment with an interpositional sural nerve graft seems to allow neurosensory recovery. Less satisfactory results are achieved in patients with IAN injuries of > 12 months duration.



http://ift.tt/2xguDHW

Paradigm shift in head and neck oncology patient management

This article describes a paradigm shift in what is considered to be good care for patients living with and after (head and neck) cancer. HNO patients often experience severe and difficult physical and psychoso...

http://ift.tt/2wFX5Rn