Vishal Kothari

• University of Nebraska Medical Center

PurposeElevated glycosylated hemoglobin (HbA1c) levels have been associated with increased morbidity and mortality following several cardiac, colorectal, orthopedic, and vascular surgery operations. The purpose of this study was to determine if there is a HgA1c cut-point that can be used in patients undergoing laparoscopic Roux-en-Y gastric bypass...

Background This study sought to evaluate surgical outcomes, cost, and opiate utilization between patients who underwent either laparoscopic or robotic-assisted bariatric procedures, including sleeve gastrectomy (SG) or Roux-en-Y gastric bypass (RYGB). Methods The Vizient administrative database was queried for patients admitted with mild to modera...

Background: This study sought to evaluate surgical outcomes, cost, and opiate utilization of patients who underwent laparoscopic (LC) or robotic cholecystectomy (RC). Methods: The Vizient database was queried for patients admitted with mild to moderate severity of illness (SOI) scores who underwent LC or RC from January 2015 through December 201...

Background: Intragastric balloon (IGB) placement can provide a mean percent total weight loss (%TWL) of 10.2% at 6-month follow-up. Objectives: We aimed to evaluate 30-day outcomes and safety of patients undergoing IGB placement. Setting: Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program. Methods: The 2016 to 2017...

Splenic artery aneurysm is the most common visceral arterial aneurysm. Rupture of aneurysm is a rare event but associated with a high mortality. Endovascular coil embolization of bleeding splenic artery aneurysm has emerged as a promising minimal invasive treatment and considered safer than open surgery in selected patients. Nevertheless, several c...

Background: Bile acids (BAs) are post-prandial hormones that play an important role in glucose and lipid homeostasis as well as energy expenditure. Total and glycine-amidated BAs increase after sleeve gastrectomy (SG) and correlate to improved metabolic disease. No specific bile acid subtype has been shown conclusively to mediate the weight loss e...

We have proposed a long-term, non-invasive, non-restrictive method of delivering and implanting a biosensor within the body via a swallowable implantation capsule robot (ICR). The design and preliminary validation of the ICR's primary subsystem-the sensor deployment system-is discussed and evidence is provided for major design choices. The purpose...

A wireless medical capsule for measuring the contact pressure between a mobile capsule and the small intestine lumen was developed. Two pressure sensors were used to measure and differentiate the contact pressure and the small intestine intraluminal pressure. After in vitro tests of the capsule, it was surgically placed and tested in the proximal s...

Purpose: Studies comparing laparoscopic (LIHR) vs. open inguinal hernia repair (OIHR) have shown similar recurrence rates but have disagreed on perioperative outcomes and costs. The aim of this study is to compare laparoscopic vs. open outcomes and costs. Methods: The National Surgical Quality Improvement Program (NSQIP) was used to compare dura...

Background: The number of adolescent bariatric surgeries (ABS) performed from 2003 to 2009 has been stable despite reports of an increase in adolescent morbid obesity. Objectives: We sought to determine the trend in national ABS volume and the changes in obesity associated co-morbidities (OACM) from 2004 to 2011. Setting: The Healthcare Cost and Ut...

To achieve long-term attachment of capsule endoscopes (CEs) and miniature biosensors in the human gastrointestinal (GI) tract, a tissue attachment mechanism (TAM) was designed, optimized and tested for safety and adhesive capabilities on excised tissue in vitro and in vivo on a live pig model. Six TAMs were tested for their attachment strength in a...

A tethered pressure measurement capsule was developed for measuring small intestine contraction pressure to assist in locating capsules within the gastrointestinal (GI) tract and quantifying the contact force between the capsule and the small intestine lumen. The capsule was calibrated statically and dynamically in depth-controlled water at body te...

Background There is marked variability in weight loss achieved after laparoscopic Roux-en-Y gastric bypass (LRYGB) with little ability to predict pre-operatively poor weight-loss outcomes. In this study, we categorize the patterns of post-operative weight loss after LRYGB by using a novel method of measurement based on the time to weight-loss stead...

Background: The number of adolescent bariatric surgeries (ABS) performed from 2003 to 2009 has been stable despite reports of an increase in adolescent morbid obesity. Objectives: We sought to determine the trend in national ABS volume and the changes in obesity-associated co-morbidities (OACM) from 2004 to 2011. Setting: The Healthcare Cost a...

The utility of mesh reinforcement for small hiatal hernia found especially during antireflux surgery is unknown. Initial reports for the use of biological mesh for crural reinforcement during repair for defects greater than 5 cm have been shown to decrease recurrence rates. This study compares patients with small hiatal hernias who underwent onlay...

The role of laparoscopic hiatal hernia repair (LHHR) at the time of laparoscopic Roux-en-y gastric bypass (LRYGB) is still debatable. This study aims to assess the safety of concomitant LHHR with LRYGB. This study is a multi-center, retrospective analysis of a large administrative database. The University Health System Consortium (UHC) is a group o...

This article reviews the use of laparoscopic adjustable gastric banding in the United States today. It comments on the history of the procedure as well as technical aspects of the operation. Short-term and long-term outcomes of the procedure are examined, and the advantages and disadvantages of this procedure in comparison with the laparoscopic gas...

Robotic techniques are routinely used in urological and gynecological procedures; however, their role in general surgical procedures is limited. A robotic technique has been successfully adopted for a minimally invasive Heller myotomy procedure for achalasia. This study aims to compare perioperative outcomes following open, laparoscopic, and roboti...