Surgery Commons^™

Background Differences In Baseline And Stimulated Mmp Levels Influence Abdominal Aortic Aneurysm Susceptibility, Matthew A. Dale, Melissa K. Suh, Shijia Zhao, Trevor Meisinger, Linxia Gu, Vicki J. Swier, Devendra K. Agrawal, Timothy Greiner, Jeffrey S. Carson, B. Timothy Baxter, Wanfen Xiong

Department of Mechanical and Materials Engineering: Faculty Publications

Objective: Evidence has demonstrated profound influence of genetic background on cardiovascular phenotypes. Murine models in Marfan syndrome (MFS) have shown that genetic background-related variations affect thoracic aortic aneurysm formation, rupture, and lifespan of mice. MFS mice with C57Bl/6 genetic background are less susceptible to aneurysm formation compared to the 129/SvEv genetic background. In this study, we hypothesize that susceptibility to abdominal aortic aneurysm (AAA) will be increased in 129/SvEv mice versus C57Bl/6 mice. We tested this hypothesis by assessing differences in aneurysm size, tissue properties, immune response, and MMP expression.

Methods: Mice of C57Bl/6 or 129/SvEv background underwent AAA induction …

Prevalence And Antimicrobial Susceptibility Pattern Of Coagulase-Negative Staphylococci (Cons) Isolated From Clinical Specimens In Northern Of Jordan, Ibrahim Ali Al Tayyar, Mazhar Salim Al-Zoubi, Emad Hussein, Salih Khudairat, Konrad Sarosiek

Department of Surgery Faculty Papers

No abstract provided.

Improved Sensitivity To Fluorescence For Cancer Detection In Wide-Field Image-Guided Neurosurgery, Michael Jermyn, Yoann Gosselin, Pablo A. Valdes, Mira Sibai, Kolbein Kolste

Dartmouth Scholarship

In glioma surgery, Protoporphyrin IX (PpIX) fluorescence may identify residual tumor that could be resected while minimizing damage to normal brain. We demonstrate that improved sensitivity for wide-field spectroscopic fluorescence imaging is achieved with minimal disruption to the neurosurgical workflow using an electron-multiplying charge-coupled device (EMCCD) relative to a state-of-the-art CMOS system. In phantom experiments the EMCCD system can detect at least two orders-of-magnitude lower PpIX. Ex vivo tissue imaging on a rat glioma model demonstrates improved fluorescence contrast compared with neurosurgical fluorescence microscope technology, and the fluorescence detection is confirmed with measurements from a clinically-validated spectroscopic probe. Greater PpIX …

Does The Expression Of Ki-67, P16 And Cox-2 At Initial Diagnosis Of Breast Atypia Or Usual Ductal Hyperplasia Predict A Second Clinically Significant Event?, Judy A. Tjoe, Philippe Gascard, Jianxin Zhao, Gary F. Neitzel, Maharaj Singh, Brittany Last, James Marx, Thea Tlsty, Sanjay Kansra

Journal of Patient-Centered Research and Reviews

Background: Women diagnosed with atypical ductal hyperplasia (ADH) or atypical lobular hyperplasia (ALH) have a fivefold increased risk of developing breast cancer. Because ADH/ALH can be precursors or predictive markers of a subsequent clinically significant event (SCSE), i.e. atypia, in situ or invasive carcinoma, the clinical outcome for these patients ranges anywhere from remission to invasive malignancy. Currently we cannot predict which atypical breast lesion is likely to be associated with future cancer, resulting in aggressive management and, possibly, overtreatment. Kerlikowske et al. reported that a combination of three biomarkers (cell cycle regulator p16INK4a, proliferation antigen Ki-67 and stress response …

Operating Room First Start Efficiency Throughout A Large Urban Hospital System, Callie Cox Bauer, Kiley A. Bernhard, Danielle M. Greer, Scott Kamelle

Journal of Patient-Centered Research and Reviews

Background: Operating room delays decrease health care system efficiency and increase hospital costs. Data on delays in a multihospital system are sparse.

Purpose: In an effort to improve our operating room efficiency, we investigated operating room delays, the causes and the impending financial impact.

Methods: A retrospective analysis on first case-of-the-day surgeries at three hospitals during 2013 was conducted. Delays were defined as in-room time being after scheduled surgery start time. Length of delay and causes were recorded. Patient demographics, body mass index, hospital facility, total number of procedures, provider specialty and time of patient arrival were incorporated into a …

Ependymal Tumors With Oligodendroglioma Like Clear Cells: Experience From A Tertiary Care Hospital In Pakistan, Fauzan Alam Hashmi, Muhammad Faheem Khan, Saad Akhtar Khan, Muhammad Waqas, Muhammad Ehsan Bari, Arsalan Ahmed

Section of Neurosurgery

Background: Ependymal tumors with oligodendroglioma like clear cells have never been reported from Pakistan. We aimed to see the features and outcomes of this rare entity.
Methods: It was retrospective cohort conducted at the Department of Neurosurgery, Aga Khan University from 2003 to 2013. The medical records and radiology of patients with proven histopathology were reviewed. Analysis was done on SPSS 20.
Results: Eleven cases of ependymal tumors with clear cells were found, which equated to 1.5% of the total tumor burden in 11 years. The median age was 49 years. Most common presenting symptom was headache 54.5%. Out of …

Penetrating Abdominal Trauma, Lauren Dudas Md

Department of Surgery

No abstract provided.

Randomized Clinical Trial Comparing Perioperative Care For Breast Cancer Patients At A Patient Hotel Versus A General Surgical Ward, Madleen Anna Camilla Huzell, Johan Frisack, Kristina Dalberg

Patient Experience Journal

Breast cancer is the most frequent cancer among women in Europe and the US. The aim of this study was to assess whether perioperative care, for breast cancer patients, provided at a patient hotel could be an alternative to the conventional care in an ordinary surgical ward. The study focuses solely on the patients’ experience of the provided care with a primary outcome that perioperative care at the patient hotel would be valued better than care in a general ward. Prospective, randomized single centre study. Between 2010 and 2012 a total of 151 patients < 80 years and without severe comorbidities were included in the trial, whereof 76 patients were randomised to the ward group and 75 patients to the hotel group. Five patients were excluded from each group. The validated IN2005-E questionnaire was used to evaluate the patients’ experiences of the care. The response rate was high with 65 patients answering the IN2005-E in each group. No difference could be found between the two groups regarding patient characteristics, type of surgery or tumour characteristics. The patients generally perceived the quality of the provided care as high. However, in the hotel group there was a better experience of care regarding issues such as coordination, privacy, some aspects of medical information, availability and the courtesy of the nurses. For selected patients, perioperative care at a patient hotel is an appreciated alternative to care at a surgical ward.

The Utilization Of High Flow Oxygen To Administer Inhaled Pulmonary Vasodilators In Post-Operative Left Ventricular Assist Patient Population To Facilitate Extubation, Kenneth Miller Med, Rrt-Accs, Ae-C;, Timothy S. Misselbeck, Barbara A. Ebert Crnp, Robert Allman Rrt, Linda Cornman Bs, Rrt-Nps, Rrt-Accs, Ae-C

Patient Care Services / Nursing

No abstract provided.

Renal Oncocytosis In A Pediatric Patient: Case Report And Review Of The Literature, Stacey Speer, Daniele Wiseman, Madeleine Moussa, Andreana Bütter

Surgery Publications

Renal oncocytosis is a rare condition in which the kidney develops numerous oncocytomas. We present a case of a 12-year-old female who presented with right-sided flank pain of one-year duration. Imaging revealed several masses in the right kidney. Tissue biopsy confirmed multiple benign oncocytomas. Due to the presence of multiple oncocytomas throughout the kidney, a radical nephrectomy was performed. Given the rarity of this condition, as well as its known association with von Hippel-Lindau disease and Birt-Hogg-Dube syndrome, genetic investigations were pursued but failed to identify any abnormalities. This patient remains well and disease free six years after surgery. A …

Toe-Tourniquet Syndrome: A Rare Potentially Devastating Entity, Naveed Baloch, M Atif, Rizwan Hussain Rashid, Pervaiz Mahmood Hashmi

Section of Orthopaedic Surgery

Toe-tourniquet syndrome is a rare and commonly misdiagnosed condition caused by a hair or a fiber wrapped around digits (fingers and toes). A four months baby girl who was crying and presented with redness and swelling at her 2nd and 3rd toes of right foot. Child had red and swollen 2nd and 3rd toes of right foot with hair end protruding through wounds. Constricting hairs were cut and removed. Toetourniquet syndrome is a rare entity which is caused by hair wrapped around a toe or a digit. Diagnosis is mostly clinical. In order to prevent this condition to happen, education …

Surveillance In The Service Of Safety, Rashid Jooma

Section of Neurosurgery

The World Report on Road Traffic Injury Prevention of 2004 recommended that the newly motorizing countries establish road injury surveillance to define the burden, identify highrisk groups, plan intervention and monitor their impact. Despite its stated importance in the literature, very few examples of sustained surveillance systems are reported from low income countries. This presentation shares the results of an urban RTI surveillance program that has been running for the past 8 years since 2007 in the emergency departments of five major hospitals in Karachi, Pakistan. We describe the process of establishing the road injury surveillance system incorporating a multi-institution …

Hip Fragility Fractures: Anaemia, Calcium And Vitamin D Supplementation, Iqra Khan, Ambreen Jawaid, Khabir Ahmad, Shahryar Noordin

Department of Family Medicine

Objective: To assess the burden of anaemia and osteoporosis in hip fracture patients, to determine the rate of blood transfusion per-operatively, to assess the use of calcium and vitamin D supplements and the use of anti-osteoporotic medications postoperatively.
Methods: A retrospective study was conducted at Aga Khan University and Hospital (AKUH) between June 2009 and May 2011, and comprised record of patients treated for intertrochanteric and femur neck fractures. Patients with associated pathological, open or long bone fractures were excluded. The main study outcome measures were the use of pre-operative and post-operative calcium, vitamin D, bisphosphonates and management of anaemia …

Migrated Avalon Veno-Venous Extracorporeal Membrane Oxygenation Cannula: How To Adjust Without Interruption Of Flow., Daizo Tanaka, Harrsion T. Pitcher, Nicholas C. Cavarocchi, Hitoshi Hirose

Department of Surgery Faculty Papers

The Avalon dual lumen cannula is presently the cannula of choice for veno-venous extracorporeal membrane oxygenation (VV-ECMO) via right internal jugular cannulation. This cannula establishes VV-ECMO with a single cannulation; however, it requires appropriate positioning to gain adequate oxygenation. Malposition of this cannula can cause inadequate ECMO flow, hypoxia, and structural injury. We have experienced two cases of migration: one into the hepatic vein and the other into the right ventricle. The former was repositioned using echocardiographic guidance without using a guidewire. The latter was repositioned using a guidewire from the femoral vein under fluoroscopy, without antegrade wire placement into …

Department Of Surgery Update, November 2015, Wright State University Department Of Surgery

Department of Surgery Updates

A four page newsletter created by the Department of Surgery documenting changes to the department. This issue contains a message from the chair, a list of important dates, committee meetings, scholarly activity and more.

Clinic-Based Biopsy With A Small Curette: Is It A Reliable And Safe Option In Extremity Tumours?, Waseem Ahmed, Masood Umer, Yasir Mohib, Rizwan Haroon Rashid

Department of Surgery Docs

Objective: To establish the diagnostic accuracy and safety of clinic-based biopsy done with a small curette.
Methods: The retrospective study was conducted at Aga Khan University Hospital Karachi and comprised data of patients who underwent biopsy procedure of extremity tumours in clinic under local anaesthesia from July 2009 to June 2012. Patients who underwent the procedure in operating room under general anaesthesia were excluded and so were those with insufficient or missing information, or those who had the final procedure done elsewhere. Clinical parameters were evaluated and histo-pathology was compared with the final resected specimen.
Results: The mean age of …

A Prospective Analysis Of Factors Associated With Decreased Physical Activity In Patients With Cirrhosis Undergoing Transplant Evaluation, Anna Christina Dela Cruz, Valery Vilchez, Sooyeon Kim, Benjamin Barnes, Abhishek Ravinuthala, Anthony Zanni, Roberto Galuppo, Achuthan Sourianarayanane, Trushar Patel, Erin Colleen Maynard, Malay B. Shah, Michael F. Daily, Timothy L. Uhl, Karyn A. Esser, Roberto Gedaly

Internal Medicine Faculty Publications

BACKGROUND: Physical activity has been associated with improved recovery time after transplantation. Handgrip strength has been related to post-transplant outcomes.

AIM: To evaluate predictors of physical activity and grip strength in cirrhotic patients undergoing liver transplant evaluation.

METHODS: Single center, prospective analysis.

RESULTS: A hundred patients were evaluated (54% male, mean age 53 ± 9). Common etiologies of liver disease were non-alcoholic hepatitis (27%), hepatitis C (22%), and alcoholic liver disease (21%). Mean MELD score was 13.5. Forty one percent had a history of smoking. Ninety-three patients completed the International Physical Activity Questionnaire. The median total physical activity score of …

K Wire Fixation Of Supra-Condylar Humerus Fractures In Children. Is Ulnar Nerve At Risk?, Waseem Ahmed, Haroon Rashid, Yasir Mohib, Rizwan Haroon Rashid

Department of Surgery Docs

Abstract

OBJECTIVE:

To compare iatrogenic ulnar nerve injury in lateral entry pin fixation versus medial and lateral entry pin fixation in the treatment of supracondylar fractures of the humerus in children. Measurement of clinical parameters in terms of elbow range of motion and postop radiographic alignment was also targeted.

METHODS:

The retrospective cohort study was conducted at Aga Khan University Hospital, Karachi, and comprised data of paediatric patients who underwent closed reduction and percutaneous pin fixation for the treatment of displaced extension type supracondylar fractures of the humerus between July 2007 and June 2012. Data regarding socio-demographic status, disease and …

Calcaneal Fractures: An Audit Of Radiological Outcome., Tashfeen Ahmad, Zehra Abdul Muhammad, Bilal Humayun Matin, Azeem Tariq Malik, S. A. Quadri

Department of Surgery Docs

Abstract

OBJECTIVE:

To assess radiological outcome of management of calcaneal fractures.

METHODS:

The retrospective study was conducted at Aga Khan University Hospital, Karachi, and comprised data of calcanealfractures managed between February , 2008 and February, 2014 Cases were identified through medical records, and X-rays were reviewed through digital radiology archive. Bohler\'s angle, Gissane\'s angle, calcaneal height and width were assessed digitally on pre-operative and post-operative X-ray images.

RESULTS:

Of the27 patients, only 1(3.7%) was female. The cause of fracture was fall from height 15(56%), road traffic accidents 7(26%) and bomb blasts5(19%). Tongue type fractures were 16(59%) and 11(41%) were joint …

Clinic Based Biopsy Vs. Theatre Biopsy Of Bone And Soft Tissue Extremity Tumours: Comparable Diagnostic Modalities, Waseem Ahmed, Masood Umer, Yasir Mohib, Rizwan Haroon Rashid

Department of Surgery Docs

Abstract

OBJECTIVE:

To compare the diagnostic accuracy of clinic-based biopsy versus theatre biopsy against final histopathology in patients presenting with extremity tumours.

METHODS:

The retrospective study was conducted at Aga Khan University Hospital, Karachi, and comprised record of patients who underwent biopsy procedure of extremity tumours from January 2008 to December 2011. Data regarding socio-demographic status, disease-related and procedure-related variables were collected from the files. Histopathology report of biopsy was compared with the final histopathology after definite procedure of the tumour for concordance.

RESULTS:

Of the 87 patients whose records were reviewed, 42(48%) had undergone biopsy in theatre and 45(52%) …