Características anatómicas y biométricas del apéndice vermiforme en niños Chilenos operados por apendicitis aguda

Abstract

The biometric features of the vermiform appendix are not constant in humans, and neither is his position. Data on its variations are still limited, but show the existence of differences depending on geographic region and race of individuals. In Latin America there are no published in vivo anatomical studies as references are based only on postmortem observations. The aim of this study was to identify and describe the biometric features and anatomical positions of the vermiform appendix. For this purpose direct observations and measurements of the vermiform appendix in 65 Chilean children, of both sexes, 37 male and 28 female, operated for acute appendicitis in Maule regional and Aysen hospitals were performed. Variables such as location of the cecum, appendix position and length, shape and number of arterial branches of mesoappendix. The average age and average weight was 9.7 years and 37.5 kg. respectively. The ceacum was localized in the right iliac fossa in 62 patients (95.4%) and in the right flank in 3 patients. The vermiform appendix average length was 7.5 c. In the total sample the most frequent position of the vermiform appendix was retrocecal (47%), followed by pelvic (29%).The mesoappendix was mostly triangular, with three branch arteries and inserted mainly in the middle third of the appendix. The most common surgical approach was laparotomy McBurney, followed by laparoscopy. The laparoscopic technique has advantages related to a smaller skin incision, better exploration of the peritoneal cavity, close viewing of the organs, easier dissection and removal of the appendix with faster recovery and shorter hospital stay.