Laparoscopic Pancreatoduodenectomy in 50 Consecutive Patients with No Mortality: A Single-Center Experience.

Background: Laparoscopic pancreatic surgery has gradually expanded to include pancreatoduodenectomy (PD). This study presents data regarding the efficacy of laparoscopic PD in a single center.

Methods: This was a single-cohort, prospective observational study.

Past provoking venous thrombosis risk situations on the risk of a recurrent thrombotic event: a cohort study.

Objective: Strategies that can classify the risk for recurrent venous thrombosis are needed. Some patients may have experienced many risk situations during their life time without developing venous thrombosis (VT), while others may have experienced few of such risk factors and then develop VT idiopathically or after a single provoked risk factor. We hypothesized that those who had 'survived' many risk situations without developing VT would, after a first VT, have a low recurrence risk.

Evaluation of a prediction model for sleep apnea in patients submitted to polysomnography.

Objective: To test a prediction model for sleep apnea based on clinical and sociodemographic variables in a population suspected of having sleep disorders and submitted to polysomnography.

Methods: We included 323 consecutive patients submitted to polysomnography because of the clinical suspicion of having sleep disorders. We used a questionnaire with sociodemographic questions and the Epworth sleepiness scale.