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The video laparoscopic cholecystectomy, a new technique recently introduced in surgical surgery, includes, among other complications, also the dimension of stones. Our intention in the present work is to remove this limitation using an ultrasound lithotripter to reduce the dimension of lithiasic formations, avoiding, after all, to resort to minilaparotomy or to the use of dilators which are in contrast at least with two of the principles of methodology, the aesthetic and functional one for the patient.

The aim of the present report was to establish the effectiveness of different prophylactic antibiotic regimens and administration times in colorectal cancer surgery. Six thousand and sixty nine patients from 36 selected randomized clinical trials, published between 1980 and 1989, were reviewed. The occurrence of septic events, isolated bacterial strains, fever and postoperative hospitalization times were also analyzed. The therapeutic schedules that included the perioperative administration of antibiotics provided better results that those that did not (p. less than .0001 for infections both specifically related and unrelated to colorectal surgery). The number of postoperative administrations did not affect the clinical results, even if the predominant choice was to give more than one administration of antibiotics. A factorial design demonstrated that prolonging the perioperative administrations up to the postoperative period provided statistically significant benefits (p less than .0001) only with regard to the risk of infections that were not specifically related to colorectal surgery.