[Antiemetic prophylaxis after laparoscopic cholecystectomy: comparative study of dehydrobenzperidol, metoclopramide, ondansetron and placebo].

Objectives: To compare the efficacy of ondansetron to that of metoclopramide, dehydrobenzperidol and placebo for the prevention of postoperative nausea and vomiting (PONV) after laparoscopic cholecystectomy in a double-blind random study.

Patients And Method: A total of 100 ASA I, II and III patients undergoing scheduled laparoscopic cholecystectomy were divided into 4 groups according to whether they received one of the following intravenously just prior to anesthetic induction: 1.25 mg dehydrobenzperidol (group D), 10 mg metoclopramide (group M), 4 mg ondansetron (group O) or 2 ml of saline (group P).

[Application of continuous positive pressure to the uppermost lung in patients ventilated through a single lung].

We have studied the oxygenation process in a series of 20 patients who underwent thoracic surgery and were ventilated through a single lung. There were 19 men and one woman with a mean age (+/- SD) of 63 +/- 10.5 years, a mean height of 166 +/- 37.

[Prevalence of HIV antibody carriers in patients assisted in the recovery room].

A study has been performed on 200 patients at the Recovery Department of our hospital during 1987. This study was carried out in order to determine patients with human immunodeficiency virus (HIV) antibody. This group was randomized and consisted of 154 men and 46 women, with an average age of 35.