Surgery Commons^™

Percutaneous Venoplasty For Central Venous Stenosis: Effect On Patient's Symptoms And Patency Of Arteriovenous Accesses, Zia Ur Rehman, Abdul Hakeem Memon, Raza Sayani, Nida Zahid

Department of Surgery Docs

Objective: To determine symptomatic relief and patency rate of arteriovenous (AV) fistulae and grafts after venoplasty in patients with central venous stenosis (CVS) on hemodialysis.
Study Design: Case series.
Place and Duration of Study: The Aga Khan University Hospital, Karachi, from January 2012 to December 2017.
Methodology: The data of patients who had one session of successful venoplasty for CVS were reviewed. The outcomes measured were symptomatic recovery and improvement in the patency of AV accesses. Symptomatic recovery was termed 'complete', when there was complete symptomatic relief after venoplasty; and 'partial' when the procedure was technically successful, but symptoms were …

Distal Splenorenal Shunt (Dsrs) In Children With Extrahepatic Portal Hypertension, Zia Ur Rehman, Zafar Nazir

Department of Surgery Docs

Portal hypertension (PH) is infrequent in children as compared to adults. Currently, repetitive endoscopic ablation of varices is standard treatment. However, endoscopic facilities are not readily available in resource-limited settings. We reviewed the indications, operative morbidity, mortality, shunt patency and re-bleeding episodes in nine patients (age range 6-16 years, M:F 6:3) who had DSRS for recurrent GI bleeding not responding to endoscopic treatment and hypersplenism. DSRS is a safe and effective treatment alternative in resource limiting setting for preventing bleeding and improving hypersplenism in children with extrahepatic portal hypertension.

Brief History Of Spinal Neurosurgical Societies In The United States: Part 1., Sasha Vaziri, Daniel K. Resnick, Christopher P. Ames, James S. Harrop, Christopher I. Shaffrey, Kern Singh, Justin S. Smith, Daniel J. Hoh

Department of Neurosurgery Faculty Papers

No abstract provided.

Burnout, Job Dissatisfaction, And Mental Health Outcomes Among Medical Students And Health Care Professionals At A Tertiary Care Hospital In Pakistan: Protocol For A Multi-Center Cross-Sectional Study, Syed Hamza Mufarrih, Aeman Naseer, Nada Qaisar Qureshi, Zohaib Anwar, Nida Zahid, Riaz Hussain Lakdawala, Shahryar Noordin

Department of Biological & Biomedical Sciences

Burnout, a state of vital exhaustion, has frequently been related to work-related stress and job dissatisfaction. Given the emotionally and physically challenging nature of their work, high rates of burnout have been reported among health care professionals. This may put them at a higher risk for of suffering from adverse mental health outcomes, including depression, anxiety and stress. In our study, we aim to assess the prevalence i of and associations among burnout and job dissatisfaction and adverse mental health outcomes in a developing country, where the challenges faced by the health care system are unique. Facilities are over-burdened and …

Pediatric Brainstem Gliomas: An Institutional Experience, Altaf Ali Laghari, Mirza Zain Baig, Muhammad Ehsan Bari, Aneela Darbar, Naureen Mushtaq, Umme E Hani Abdullah, Daniya Aziz Khan

Section of Neurosurgery

Objective: The aim of this study was to analyze the clinical profiles and outcomes of pediatric brainstem gliomas treated at our institute.
Methodology: We reviewed the files of 18 pediatric age group patients diagnosed with brainstem glioma at our institution. The following variables were recorded: age, sex, duration of symptoms, date of diagnosis, main clinical symptoms, Karnofsky performance status score, magnetic resonance imaging findings, histopathology findings, details of the treatment given, disease progression, and date of mortality/last follow-up. This data were then transferred to SPSS version 23 which was used for further analysis.
Results: The mean age of our cohort …

The Early "Unnatural" History Following Surgical Repair Of Ventricular Septal Defects., Sathish M. Chikkabyrappa, Justin T. Tretter, Arpan R. Doshi, Sujatha Buddhe, Puneet Bhatla, Achi Ludomirsky

Manuscripts, Articles, Book Chapters and Other Papers

Introduction: Surgical outcomes for simple ventricular septal defects (VSD) have been excellent in the past three decades. For this project, the timing of resolution of left-sided dilation and mitral regurgitation (MR) following VSD repair was assessed.

Methods: Echocardiographic data surrounding surgery of 42 consecutive children who underwent surgical patch repair of a VSD were reviewed. The echocardiograms were reviewed up to a mean of 12 months post-operatively (range 9 - 14 months). Quantitative data indexed to body surface area including left atrial (LA) volume, mitral valve annulus diameter, and left ventricular end-diastolic dimension (LVEDD) was analyzed.

Results: The majority of …

Management Of Traumatic Subarachnoid Hemorrhage By The Trauma Service: Is Repeat Ct Scanning And Routine Neurosurgical Consultation Necessary?, Stephen W. Cooper, Kimberly B. Bethea, Trevor J. Skrobut, Rod G. Gerardo, Juan Torres-Reveron, Akpofure Peter Ekeh

Department of Surgery Faculty Publications

Subarachnoid hemorrhage (SAH) results frequently from traumatic brain injury (TBI). The standard management for these patients includes brief admission by the acute care surgery (trauma) service with neurological checks, neurosurgical consultation and repeat head CT within 24 hours to identify any progression or resolution. Recent studies have questioned the need for repeat CT imaging and specialty consultation in mild TBI. We reviewed patients with mild TBI specifically with isolated SAH to determine progression of the pathology and need for neurosurgical involvement. All patients with SAH secondary to mild TBI (Glasgow Coma Score (GCS) of 13-15) who presented over a 5-year …

Method Of Predicting Obesity Comprising Measuring Neurotensin, B. Mark Evers, Jing Li, Paul Dobner, Olle Melander

Surgery Faculty Patents

The presently disclosed subject matter relates to a method for predicting increased risk of obesity on a non-obese subject. More particularly, the presently disclosed subject matter relates to a method of predicting increased risk of obesity in a non-obese subject by determining a level of neurotensin expression in a biological sample from the subject and comparing the level of neurotensin expression in the sample with a control level. The presently disclosed subject matter further relates to a method of preventing and/or treating obesity in a subject in need thereof by administering to the subject an effective amount of an agent …

Floor Of Mouth Thyroglossal Duct Cyst: A Rare Embryologic Course., John Kerr, Weston L Niermeyer, Peter B Baker, Tendy Chiang

Surgery Articles

A thyroglossal duct cyst (TGDC) is a common pediatric midline neck mass. Most TGDCs occur in the region of the hyoid bone but have been found less commonly in areas from the oral cavity to the sternum. We present the first reported case of a multifocal floor of mouth (FOM)/cervical TGDC representing an atypical embryonic course. We also review atypical presentations of TGDC and provide a summary of cases involving FOM and multifocal cysts.

Progression-Free But No Overall Survival Benefit For Adult Patients With Bevacizumab Therapy For The Treatment Of Newly Diagnosed Glioblastoma: A Systematic Review And Meta-Analysis., Nagham Kaka, Karim Hafazalla, Haider Samawi, Andrew Simpkin, James Perry, Arjun Sahgal, Sunit Das

Department of Neurosurgery Faculty Papers

Glioblastoma (GBM) is the most common high-grade primary brain tumor in adults. Standard multi-modality treatment of glioblastoma with surgery, temozolomide chemotherapy, and radiation results in transient tumor control but inevitably gives way to disease progression. The need for additional therapeutic avenues for patients with GBM led to interest in anti-angiogenic therapies, and in particular, bevacizumab. We sought to determine the efficacy of bevacizumab as a treatment for newly diagnosed GBM. We conducted a literature search using the PubMed database and Google Scholar to identify randomized controlled trials (RCTs) since 2014 investigating the safety and efficacy of bevacizumab in the treatment …

Pediatric Moyamoya Presenting As A Subarachnoid Hemorrhage From A Ruptured Anterior Cerebral Artery Aneurysm., Mohammad Hassan A. Noureldine, Ibrahim Saikali, Anis Nassif, Rita Chahinian, Ahmad Sweid, Raghid Kikano, Michel Mawad

Department of Neurosurgery Faculty Papers

BACKGROUND: The incidence of Moyamoya disease (MMD)-associated intracranial aneurysms ranges from 3% to 14% in adult patients, whereas this complication has rarely been reported in children.

CASE DESCRIPTION: We herein report the first case, to our knowledge, of an extremely rare subarachnoid hemorrhage presentation of a child with a ruptured anterior cerebral artery dissecting aneurysm secondary to a newly discovered, unilateral Moyamoya-like pathology.

CONCLUSIONS: MMD-associated aneurysms are extremely rare in children, and hemorrhage may be the initial presentation of the disease. Prompt intervention is essential to exclude the ruptured aneurysm that is at risk of rebleeding because of persistent hemodynamic …

Safe And Effective Use Of A Hands-Free Intracorporeal Retractor For Suture-Based Liver Retraction During Minimally Invasive Bariatric Procedures: Results Of A Large Case Series, Roger De La Torre, Matthew Sappington, Tom Smith, Jeremy Bryner, David Mantilla, J Stephen Scott

General Surgery

Background

Laparoscopic bariatric surgery requires retraction of the left lobe of the liver to provide adequate operative view and working space. Conventional approaches utilize a mechanical retractor that requires a dedicated incision, may cause liver damage, and often requires an assistant. This study evaluated the safety and efficacy of hands-free intracorporeal retractors in a large series of subjects undergoing laparoscopic bariatric surgery. This method eliminates the need for a subxiphoid incision, enables full surgeon autonomy, and allows for adjustments throughout the procedure.

Methods

Retrospective chart review identified all subjects at a single hospital undergoing bariatric surgery between September 2017-March 2019 …

Microbial Profile And Antibiotic Susceptibility Trend In Postoperative Endophthalmitis: A 12-Year Review, Rashid Baig, Pushpa Bhawan Mal, Khabir Ahmed, Salman Naveed Sadiq, Sidra Zafar, Ghazala Jabeen, Saajan Kukreja

Section of Ophthalmology

Objective: To identify the microbial profile and susceptibility pattern of pathogens responsible for culture-proven postoperative endophthalmitis, and to investigate possible trends in both pathogens and antibiotic sensitivities.
Methods: The retrospective study was conducted at Aga Khan University Hospital, Karachi, and comprised record of ophthalmology patients from January 1, 2005, to December 31, 2016. Culture and sensitivity reports of vitreous and aqueous humor samples from all the patients were retrieved from the medical record section of the hospital. SPSS 19 was used for data analysis.
Results: Of the samples of 202 patients with a mean age of 58.2±15.8 years, 106(52.5%) were …

Creation Of Radiocephalic Arteriovenous Fistula In A Patient With Failed Brachiocephalic Arteriovenous Fistula, Zia Ur Rehman

Department of Surgery Docs

Abstract are not provided by the author/publisher

Diabetes And Its Effect On Abdominal Aortic Aneurysm Growth Rate In Hispanic Patients, Monica Betancourt-Garcia, Kristina Vatcheva, Amrit Thakur, Prateek Gupta, Eugene Postevka, Ricardo Martinez, R. Armour Forse

School of Mathematical & Statistical Sciences Faculty Publications

Background

The growth rate of abdominal aortic aneurysms (AAA) can vary depending on age, baseline diameter, blood pressure, race, and history of smoking. Paradoxically, previous studies show evidence of a protective effect of diabetes on the rate of AAA expansion despite its well-established role in the morbidity and mortality of cardiovascular disease. This study aims to investigate the impact diabetes plays on AAA growth within a Hispanic population.

Methods

Data were collected from patients who were predominantly Mexican-American at a single hospital site. Baseline and follow-up measures for AAA diameter were obtained from serial imaging studies. Demographics, medical history, the …

False In Name Only-Gastroduodenal Artery Pseudoaneurysm In A Recurrently Bleeding Patient: Case Report And Literature Review., M. Binetti, A. Lauro, R. Golfieri, S Vaccari, V D'Andrea, I. R. Marino, M. Cervellera, M. Renzulli, V. Tonini

Department of Surgery Faculty Papers

INTRODUCTION: Although the diagnosis of visceral pseudoaneurysm is unusual, it requires emergent attention due to the risk of rupture. We describe a 70-year old man with a gastroduodenal artery (GDA) pseudoaneurysm manifest as recurrent hæmorrhage.

AREAS COVERED: We highlight the possible ætiologies, clinical presentations, diagnostic tools and treatment options for this condition. In this instance, the patient was successfully treated by selective angio-embolization.

EXPERT COMMENTARY: A visceral pseudoaneurysm should be considered in patients with abdominal pain and GI hæmorrhage. At present, angio-embolization is first-line therapy.

Convergent Ablation For The Treatment Of Long Standing Persistent Atrial Fibrillation - A Single Center Experience, Syed Rafay Ali Sabzwari, Lohit Garg Md, Nikhil A. Mehta Md, James R. Kimber, Hiwot Ayele, James K. Wu Md, Babak Bozorgnia Md

Department of Medicine

Introduction: The treatment of long standing persistent atrial fibrillation (AF) is very challenging and conventional catheter ablation strategies have provided only modest success. They often require multiple procedures and anti-arrhythmics to maintain sinus rhythm. The convergent ablation procedure is a hybrid approach, involving a minimally invasive epicardial ablation combined with a traditional transvenous endocardial ablation.

Hypothesis: Convergent ablation is an overall safe and effective procedure for the treatment of long standing persistent AF.

Methods: From February 2015 to September 2017, 30 patient (20 males) with long standing persistent AF underwent convergent ablation at a large tertiary care center. Rest of …

Relationship Between Smoking Habit And Sperm Parameters Among Patients Attending An Infertility Clinic, Rehana Rehman, Nida Zahid, Sofia Amjad, Mukhtiar Baig, Zohair Jamil Gazzaz

Department of Biological & Biomedical Sciences

Background: This study aimed to estimate stress markers, oxidative stress (OS), reproductive hormones and sperm parameters in male smokers and non-smokers and observe the impact of oxidative stress markers and smoking on sperm count, motility and morphology in a selected population of Karachi, Pakistan.
Methods: This cross-sectional study was conducted from July 2017 to July 2018 at Aga Khan University (AKU), in Karachi, Pakistan. The subjects were recruited from the Sindh Institute of Reproductive Medicine (SIRM), Karachi based on defined inclusion criteria. The subjects were categorized into fertile and infertile based on cut off values of sperm parameters as recommended …

A Novel Polyelectrolyte Multilayer Nanofilm-Based Synthetic Bioresorbable Antimicrobial Matrix Accelerated Healing Of Chronic Wounds In A Prospective Clinical Evaluation, Sarah Waterman Manning Md, David A. Humphrey, Michael J. Schurr, Eric C. Crawford, Gaurav Pranami, William Shillinglaw, Lorinda K. Baker, Michael J. Schurr

General Surgery

No abstract provided.

Nucleus Pulposus Primary Cilia Alter Their Length In Response To Changes In Extracellular Osmolarity But Do Not Control Tonebp-Mediated Osmoregulation., Hyowon Choi, Vedavathi Madhu, Irving M. Shapiro, Makarand V. Risbud

Department of Orthopaedic Surgery Faculty Papers

The nucleus pulposus (NP) cells adapt to their physiologically hyperosmotic microenvironment through Tonicity-responsive enhancer binding protein (TonEBP/nuclear factor of activated T-cell5 [NFAT5])-mediated osmoregulation. Primary cilia in different organs serve diverse roles including osmosensing, but its contribution to NP cell osmoadaptive response is unknown. A high percentage of cultured primary NP cells possessed primary cilia that changed length in response to osmotic stimuli. Stable silencing of Intraflagellar Transport 88 (Ift88) or Kinesin Family Member 3 A (Kif3a) to inhibit the formation of primary cilia did not affect hyperosmotic upregulation of TonEBP. While ShKif3a blocked hyperosmotic increase of TonEBP-Transactivation Domain (TAD) activity, …