Αρχειοθήκη ιστολογίου

Τρίτη 22 Μαρτίου 2022

Pepsinogen/Proton Pump Co‐Expression in Barrett's Esophageal Cells Induces Cancer‐Associated Changes

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Educational Objective

At the conclusion of this presentation, participants should better understand the carcinogenic potential of pepsin and proton pump expression in Barrett's esophagus.

Objective

Barrett's esophagus (BE) is a well-known risk factor for esophageal adenocarcinoma (EAC). Gastric H+/K+ ATPase proton pump and pepsin expression has been demonstrated in some cases of BE; however, the contribution of local pepsin and proton pump expression to carcinogenesis is unknown. In this study, RNA sequencing was used to examine global transcriptomic changes in a BE cell line ectopically expressing pepsinogen and/or gastric H+/K+ ATPase proton pumps.

Study Design

In vitro translational.

Methods

BAR-T, a human BE cell line devoid of expression of pepsinogen or proton pumps, was transduced by lentivirus-encoding pepsinogen (PGA5) and/or gastric proton pump subunits (ATP4A, ATP4B). Changes relative to the parental line were assessed by RNA sequencing.

Results

Top canonical pathways associated with protein-coding genes differentially expressed in pepsinogen and/or proton pump expressing BAR-T cells included those involved in the tumor microenvironment and epithelial–mesenchymal transition. Top upstream regulators of coding transcripts included TGFB1 and ERBB2, which are associated with the pathogenesis and prognosis of BE and EAC. Top upstream regulators of noncoding transcripts included p300-CBP, I-BET-151, and CD93, which have previously described associations with EAC or carcinogenesis. The top associated disease of both coding and noncoding transcripts was cancer.

Conclusions

These data support the carcinogenic potential of pepsin and proton pump expression in BE and reveal molecular pathways affected by their expression. Further study is warranted to investigate the role of these pathways in carcinogenesis associated with BE.

Level of Evidence

N/A Laryngoscope, 2022

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ROBOTIC REPAIR OF ATRIAL SEPTAL DEFECT WITH PARTIAL PULMONARY VENOUS RETURN ANOMALY: OUR 5‐YEAR EXPERIENCE

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ABSTRACT

Introduction

Partial pulmonary venous return anomalies (PPVRA) were not considered as a good candidate for robotic surgery in early time of robotic cardiac surgery. In this study, we present our experience in patients undergoing robotic atrial septal defect (ASD) and PPVRA surgery.

Methods

Between November 2014-January 2020, data of 21 patients underwent robotic ASD with PPVRA was collected. Inclusion criterion was presence of right-sided PPVRA with ASD. All operations were performed robotically.

Results

The mean age of patients was 26.7±10.3 years. 17 patients (81 %) had superior-caval ASD with supracardiac PPVRA and double-patch technique was used. Four patients had inferior-caval ASD with intracardiac PPVRA and single-patch technique was preferred. Cross-clamp time and cardiopulmonary bypass time were 92.8±29.6 and 127.8±38.1, respectively. There was no mortality. One patient had atrioventricular-block and required pacemaker.

Conclusion

Robotic repair of ASD with PPVRA is feasible and effective method as an alternative to conventional surgery.

This article is protected by copyright. All rights reserved.

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The effectiveness of topical 1% lidocaine with systemic oral analgesics for ear pain with acute otitis media

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Publication date: May 2022

Source: International Journal of Pediatric Otorhinolaryngology, Volume 156

Author(s): Ateş Kara, Ayşe Büyükcam, Murat Sütçü, Enes Sali, Şefika Elmas Bozdemir, Manolya Kara, Eda Çullas İlarslan, Cemil Kaya, Sabahat Karakaşlılar, Gülsüm Sönmez, Soner Sertan Kara, Tuğba Bedir, Eda Albayrak, Tuğçe Tural Kara, Solmaz Çelebi, Fatma Nur Öz, Adem Karbuz, Ayper Somer, Derya Alabaz, Hasan Tezer

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Comparison of Video Head Impulse Test Findings in Individuals Aged between 20–39 and 40–60 Years

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Özge Gedik, Nilüfer Bal, Sümeyye Özdemir, Berna Özge Mutlu, Elifnur Taşdemir, Burcu Kaya, Eda Kurt, Nur Sema Kaya, Zeynep Durukan

Indian Journal of Otology 2021 27(4):225-229

Objective: The aim of this study was to investigate the normal gain values specific to each semicircular canals by using the goggle-less model of video head impulse test (vHIT) between ages of 20–39 and 40–60, gender and age-related gain values changes. Materials and Methods: The present study was performed in 99 participants aged 20–39 years and 100 participants aged 40–60 years. Each semicircular canal gain values were interpreted by comparing for both the age group of 20–39 and 40–60 years and gender. Results: The mean right lateral, right posterior, left lateral, and left posterior canal gain of 20–39 age group was significantly higher than the 40–60 age group. Regardless of age, while the mean left lateral canal gain in females was significantly higher than males, the mean right anterior and right posterior canal gain was significantly higher in males. The mean right lateral and the left lateral canal gains were significantly higher in females in the 20–39 year s' age group; however, the mean right anterior, right posterior, and left posterior canals gains were significantly higher in males than in females. The mean right lateral canal gain in males was significantly higher in the 40–60 age group than that of females. Conclusions: The vHIT as a standard test for vestibular assessment provides clinical benefits, in addition the comparing for different age groups for goggle-less vHIT model will provide more beneficial results in the evaluation of patients. In the literature, there are not many studies on the goggle-less vHIT device, so we believe our study will be a pioneer in this field.
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Bionic hearing in auditory neuropathy spectrum disorder: A systematic review

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Shruti Rajavenkat, Abishek Umashankar, Pachaiappan C Chandrasekaran

Indian Journal of Otology 2021 27(4):169-179

Auditory neuropathy spectrum disorder (ANSD) is a condition in which the patient has poor speech perception abilities, which is characterized audiometrically with presence of oto acoustic emission and the absence of auditory brain stem response. Several authors have categorized ANSD into various types based on the anatomical and physiological origin or based up the audiometric findings. This systematic review study focuses on illuminating the benefit of cochlear implants or auditory brain stem implants for children diagnosed with ANSD.
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Diagnostic Accuracy of the Hum Test in Unilateral Hearing Loss

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Ann Maria Polson, Unnikrishnan K Menon, G Prem, M Kumar, R Bhaskaran

Indian Journal of Otology 2021 27(4):217-221

Context: There is a need for a quick reliable home test for detecting hearing loss (HL), especially in the present era of telemedicine. Hum test is one such which can be performed easily without instruments but not much documented in the literature. Aims: The aim is to find out the diagnostic accuracy of hum test in detecting unilateral HL. Settings and Design: Tertiary healthcare center, prospective, cross-sectional diagnostic test accuracy study. Subjects and Methods: The study included 85 controls and 85 patients with unilateral conductive or sensorineural HL (SNHL). The patients were divided into four groups-controls, simulated unilateral conductive HL (CHL) subjects, unilateral CHL, and SNHL patients. They underwent 4 tests-Weber test, Low pitch hum test, High pitch hum test, and pure-tone audiometry (PTA), the latter being the gold standard. Statistical Analysis Used: To test the statistical significance of the agreement between the hum test and the Weber test with PTA, McNemar 's Chi-square test was used. Diagnostic measures such as sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were computed. Results: The sensitivity (85%) and accuracy (95.2%) of Hum test were better in comparison to Weber test (70% and 88.8% respectively) in unilateral sensorineural patients. However, in the case of CHL the Weber test was more sensitive in comparison with hum test (95.6% and 83.35% respectively). Overall, the diagnostic accuracy of hum test was 92.5% when compared to the Weber test (93.5%). Conclusions: Hum test can be used as a reliable screening tool for suspected sudden HL cases.
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Pinna injuries management at tertiary care center

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Vikas Sinha, Bhagirathsinh D Parmar, Nilam T Senta, Sushil G Jha, Sandeep Kumar Yadav

Indian Journal of Otology 2021 27(4):185-188

Introduction: Ear is one of the most important parts of the face along with the nose and eyes, as normal pinna is projected outward, it is highly vulnerable to injury by road traffic accident (RTA) and other causes. Aim of Study: The aim of the study was to evaluate various etiology, management, and treatment outcomes of pinna injury. Materials and Methods: Fifty cases of pinna injuries were treated medically and surgically over a period of 1 year at Sir T Hospital, Government Medical College, Bhavnagar, India. Results: It was observed that RTA (46%) was the most common cause of pinna injury. Conclusion: RTA is the most common cause of injury to pinna, followed by assault, thermal injury, human bite, and animal bite. To lessen the risk of perichondritis, aseptic precautions are most important thing.
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Carrier frequency of connexin26 W24X mutation in the population of Kerala, India

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Joe Joseph, Anu Yamuna Joseph

Indian Journal of Otology 2021 27(4):222-224

Purpose: The aim is to study the carrier rate of connexin 26 (Cx26) W24X gene mutation among the general population of Kerala, India. Subjects and Methods: This study included 248 normal-hearing individuals from the general population of Kerala, India. Polymerase chain reaction-restriction fragment length polymorphism was performed to detect the presence of Cx26 W24X mutation. Results: Of the 248 individuals, 7 cases were heterozygous and 241 cases were homozygous normal. The results showed a carrier frequency of 2.82% for the Cx26 W24X mutation in the Kerala population. Conclusion: Among the selected Kerala population sample, the Cx26 gene mutation showed a high carrier rate. Early detection of nonsyndromic hearing impairment has been proven to be very helpful in speech therapy and language development. Given the high carrier rate of Cx26 W24X mutation in the Kerala population, we propose the genetic screening of the suspected newborns for W24X mutation in the Cx26 gene.
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Otogenic Cerebral Venous Sinus Thrombosis: A Case Report and Literature Review

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Mostafa Meshref, Ahmed Taher Masoud, Amira Yasmine Benmelouka

Indian Journal of Otology 2021 27(4):238-240

Cerebral venous sinus occlusion is an exceptional presentation in the emergency department. Otitis and mastoiditis are rarely associated with cerebral venous sinus occlusion. It is considered as a redoubtable complication with potentially severe outcomes. Symptoms that may indicate this thrombosis are variable and include progressive headache, intracranial hypertension, seizures, focal neurological deficits, and ophthalmologic symptoms. In this article, we report a case of a young female patient presenting with otitis and mastoiditis complicated with intracranial thrombosis. She was successfully treated with antibiotics, anticoagulants, and analgesics. Furthermore, we provide a brief review on cerebral venous sinus thrombosis with a focus on its risk factors and its management. Finally, we emphasize the need for better awareness about this potential intracranial complication.
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Comparison and Validation of Acoustic Voice Quality Index Version 2 and Version 3 among South Indian Population

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Acoustic Voice Quality Index (AVQI) has emerged in the recent past as a robust multiparametric voice quality evaluation tool. Two versions of AVQI derived using the program PRAAT have found extensive clinical and research applications. These versions have been validated in several languages around the world. However, no research reports are available on validation of AVQI in the South Indian population. Further, studies comparing the performance of the two versions of AVQI are limited in the literature.
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Injection laryngoplasty during transoral laser microsurgery for early glottic cancer: a randomized controlled trial

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Transoral laser microsurgery is widely used for treating T1/T2 glottic cancers. Hyaluronic acid (HA) is commonly used in vocal cord augmentation. We investigated the impact of intra-operative injection laryngo...
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Evolution of midface microvascular reconstruction: three decades of experience from a single institution

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Eur Arch Otorhinolaryngol. 2022 Mar 22. doi: 10.1007/s00405-022-07321-x. Online ahead of print.

ABSTRACT

PURPOSE: Midface reconstruction poses a complex set of challenges for reconstructive surgeons. The optimal midface reconstruction must possess a durable underlying bone construct capable of integrating dental implants. Facial contour is restored by the overlying microvascular soft tissue reconstruction with reestablishment of the oral cavity. A plethora of microvascular flaps used in clinical practice have been described including those harvested from the iliac crest, scapula, fibula, forearm and back (latissimus dorsi). The objective was to share our experiences with each of these treatment options that have continued to evolve over time for the benefit of patients.

METHODS: Our institution has over three decades of experience in reconstructing complex midface defects and this article summarizes midface reconstruction from an evolutionary perspective (for type II, III and IV defect; Browns classification, Supplementary Table I). We broadly divide this into (i) flaps supplied by the subscapular system (ii) autologous reconstruction with titanium mesh and (iii) fibula microvascular flaps using 3D planning.

RESULTS: The advantages and disadvantages for each approach are discussed (Supplementary Table II).

CONCLUSION: In the future, it is expected that 3D planning coupled with rapid prototyping, intraoperative navigation and CT imaging will become standard procedural practice.

PMID:35316380 | DOI:10.1007/s00405-022-07321-x

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