Subject of inquiry: the patients of elderly and senile age have acute intestinal obstruction; The aim of the research: Improvement of results of surgical treatment of acute intestinal obstruction at the patients of elderly and senile age by differential approach to the choice of the improved surgical methods of a different type and method on the basis of their staging, depending on the reason of acute intestinal obstruction and degree of operative risk; Methods: physical examination, biochemical, roentgenologic, ultrasonic, endoscopic, morphological, statistical; Scientific novelty: For the first time the meaningful factors of insufficient results of surgical treatment of acute intestinal obstruction at the patients of elderly and senile age are set on the basis of multifactor discriminant analysis which determine development of postoperative complications. For the first time the 3 group of patients with the comparative low, high and critical degrees of operating risk were allocated, taking into account the ball system of prognostication of insufficient result of treatment of patients of elderly and senile age at patients with acute intestinal obstruction. The differentiated approach to the choice of the improved surgical methods of a different steps and method is developed and scientifically grounded on the basis of their staging depending on the reason of acute intestinal impassability, their accordance of degree of operating risk; Results: Factors which determine development of postoperative complications are exposed. The informing criteria of estimation of degree of operating risk are developed, which it is necessary to take into account at the surgical treatment acute intestinal obstruction at the patients of elderly and senile age. The indications to the differentiated use of the improved surgical methods (mobilizations of intestine at its resection, hemicolectomy, resection of large intestine, perioperative decompression of intestine) are developed depending on the degree of operating risk and type of intestinal obstruction. A necessity and high efficiency of application of staging operations is proved, that allowed to reduce the amount of postoperative complications from 27,5% to 16,5%, lethality - from 25,0% to 14,4%, to reduce the term of being of patients in permanent establishment on 6 days; it is inculcated - in medical practice, in an educational process; sphere - medical practice.
