Publications by authors named "Andres Vivar"

Background: Leak is a feared complication of bariatric surgeries. Time to presentation is important in their management. We used the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) to evaluate the rate and timing of leaks.

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Background: Patients with governmental insurance are known to utilize the emergency department (ER) at a higher rate and have higher readmission rates than other patients. Twenty percent of our patients are publicly insured. Our objective was to determine if there was a higher rate of readmissions and ER visits within 30 days in publicly insured patients.

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Background: Staple line leaks are a serious problem in bariatric surgery and a major cause of serious morbidity and mortality. Adverse events caused by medical devices are reported to the Food and Drug Administration which maintains the Manufacturer and User Facility Device Experience (MAUDE) database. We examined adverse stapler events reported to the MAUDE database, specifically with regards to bariatric surgery.

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Introduction: Paraesophageal hernias are often asymptomatic, but when symptomatic they should be fixed laparoscopically. A cruroplasty of the diaphragmatic pillars is performed and a fundoplication is usually performed at the time. However, there are times, especially in emergency cases, where it is not always possible to perform a fundoplication.

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Background: The gastric bypass is a commonly performed bariatric procedure. The stomach is divided into a small pouch as well as leaving a larger remnant that is bypassed by the gastrojejunal anastomosis. This makes access to the biliary system difficult as an endoscope cannot transverse the esophagus, roux limb, and biliopancreatic limb.

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Background: Duodenal switch (DS) still comprises less than 1% of the overall primary procedures in the United States. Our aim is to explore the reasons behind surgeons' reluctance to DS adoption.

Objectives: To determine perceived reasons for the widespread lack of adoption of the DS.

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