Changes in hemostasis after laparoscopic cholecystectomy.

Background: The aim of this work was to study hemostasis in laparoscopic cholecystectomy in order to determine if there are any changes that indicate a greater risk of thrombosis.

Methods: The study was carried out in 20 patients who underwent laparoscopic surgery for noncomplicated cholelithiasis. The average age was 59.

[Normal values for basal serum gastrin with and without stimulation].

In the present work we report a study of the basal gastrin serum levels and stimulated serum gastrin levels after an hyperproteic meal, in a group of 20 healthy volunteers, with neither actual nor previous digestive symptoms. 60% were males, with a mean age of 35, 7 years, the highest percentage (40%) belonging to the fourth decade of life. The procedure used to determine serum gastrin levels is described.

[Determination of basal and stimulated blood gastrin in duodenal ulcer].

Serum gastrin levels were measured under basal conditions and after hyperproteic meal stimulation in 24 patients with non-stenotic duodenal ulcer, 78% of them were males with a mean age of 36.4 years. Results were compared with those obtained in 20 volunteers.