[Postoperative pain in patients undergoing elective laparoscopic cholecystectomy with low versus standard-pressure pneumoperitoneum. A randomized clinical trial.].

Background: Laparoscopic cholecystectomy is the gold standard in the management of symptomatic gallstone disease. Postoperative abdominal and shoulder-tip pain are the main adverse side effects.

Aim: To determine whether the low-pressure pneumoperitoneum (7 mmHg) decreases postoperative pain in patients undergoing laparoscopic cholecystectomy compared with standard pressure pneumoperitoneum (12-15 mmHg).

[Factors associated to heavy bleeding during heart surgery with cardiopulmonary bypass].

Objective: To evaluate the risk factors related to bleeding in patients subjected to cardiac surgery using an extracorporeal circulation pump.

Material And Methods: A study of cases and controls was designed performed in adults, matched by age and gender with indication of elective cardiac surgery using an extracorporeal circulation pump. Those patients with hepatic failure or blood coagulation disorders were excluded.