Maria A. Cassera

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OBJECTIVE To compare short-term surgical outcomes and quality of life (QOL) between single-port laparoscopic cholecystectomy (SPLC) and classic 4-port laparoscopic cholecystectomy (CLC). BACKGROUND There is significant interest in further reducing the trauma associated with surgical procedures. Although a number of observational studies have suggested(More)
Mental workload is a finite resource and is increased while learning new tasks and performing complex tasks. Measurement of a surgeon’s mental workload may therefore be an indication of expertise. We hypothesized that surgeons who were expert at laparoscopic suturing would have more spare mental resources to perform a secondary task, compared with surgeons(More)
BACKGROUND Team size and composition provide essential data for the study of operating room (OR) efficiency. METHODS Laparoscopic procedures between July 2005 and July 2007 were reviewed retrospectively to record the number of OR personnel and the procedure time (PT). RESULTS Of 399 procedures reviewed, 360 cases with complete data were analyzed. The(More)
BACKGROUND AND STUDY AIMS Gastrointestinal stents have become an important therapeutic option for several indications. However, migration in up to 40 % of cases represents a significant drawback, especially when covered prostheses are used. We hypothesized that a novel endoscopic suturing device could enable endoluminal stent fixation, which might increase(More)
BACKGROUND Despite considerable data focused on the morbidity of pancreaticoduodenectomy (PD), the financial impact of complications has been infrequently analyzed. This study evaluates the impact of the most common complications associated with PD on the cost of care. Additionally, we identified cost centers that were significantly affected by(More)
Many activities performed by team members in the operating room (OR) are not directly related to the achievement of the surgical goal. A video-aided observational field study was conducted in the OR to examine disruptive events during laparoscopic antireflux surgery. Disruptive events were categorized into one of six groups: instrument change, surgeon(More)
With the advent of endoscopic retrograde choledochoduodenostomy, the need for choledochoduodenostomy to treat common bile duct obstruction is less common, but occasionally required. Patients considered for laparoscopic choledochoduodenostomy secondary to benign conditions between 1999 and 2009 at a single institution were included. Charts were(More)
Gastroparesis is a condition characterized by delayed gastric emptying, and a constellation of symptoms, including nausea, vomiting, early satiety, and bloating. Although current surgical options such as pyloroplasty have been shown to be effective, an endoscopic submucosal myotomy technique may be applied to divide the pyloric sphincter without surgical(More)
BACKGROUND Intrahepatic cholangiocarcinoma (ICC) remains a rare tumour, although its incidence is increasing. Surgical resection is the mainstay of treatment. Published data regarding prognostic factors and optimal patient selection for resection are scant. We sought to determine the clinicopathologic characteristics of resectable ICC and outcomes following(More)
The type of fundoplication that should be performed in conjunction with Heller myotomy for esophageal achalasia is controversial. We prospectively compared anterior fundoplication (Dor) with partial posterior fundoplication (Toupet) in patients undergoing laparoscopic Heller myotomy. A multicenter, prospective, randomized-controlled trial was initiated to(More)