Comparative analysis of the results of surgical treatment of patients with abdominal aorta infrarenal aneurysms in different countries

The aim of the study was a comparative analysis of the results of surgical treatment of patients with iAAA in different Countries and clinics. Material and methods. The study is retrospective, comparative and is based on the analysis of the results of surgical treatment of patients with iAAA, in the period from 2011 to 2015 at the base of the Ryazan State Medical University named after acad. I.P. Pavlov, Ryazan, Russia and at the Republican Scientific Center for Cardiovascular Surgery (RSCCS), Dushanbe, Tajikistan (2011-2017). The study included 226 patients, 60 from Dushanbe and 166 from Ryazan. The endpoints of the study were: demographic characteristics, comorbidities, time of surgical treatment, mortality within 30 days after surgery, long-term survival, the effect of gender on survival. Results. The mean age of the patients was 69.4±2.6 years, males 174 (77%), females 52 (23%). Patients older than 80 years were 11.4% and 23.4% in Russia and Tajikistan, respectively. Only in 69.7% and 73.3% of cases were elective surgery performed. Cumulative 30-day mortality, as well as 30-day mortality after elective and emergency operations, was comparable between the clinics. The 30-day mortality rate was higher after operations performed for AAA rupture compared to elective surgery. The duration of observation of patients in Dushanbe and Ryazan was 21.0±0.9 (M±SE; min-max =1 1-33) and = 21.0±0.5 (M±SE; min-max = 2-33) months. Mortality was not differ in both countries. The survival rate up to 33 months reached 74%. In the Russian Federation after the operation, the total mortality during the first 30 days turned out to be significantly higher among males, in the Republic of Tajikistan was not differ. Conclusion. Surgical interventions for AAA rupture are performed in 26-31% in the Republic of Tatarstan and the Russian Federation, respectively. Cumulative 30-day mortality, 30-day mortality after elective and emergency operations are comparable between compared clinics. AAA rupture is accompanied by high mortality. RF after the operation, the total mortality during the first 30 days was significantly higher among males.