Comparison Outcomes of Anesthesia and Hospitalization of Endovascular Treatment versus Open Surgery for Infra Renal Abdominal Aortic Aneurysm at Sina Hospital from 2011 to 2019

Two methods of repair are currently available for an abdominal aortic aneurysm (AAA), open aneurysm surgery, and endovascular aneurysm repair (EVAR). The purpose of this article is to investigate and compare the outcomes of all cases of open surgery versus EVAR conducted from2011 to 2019 at Sina Medical Research and Training Hospital, the first EVAR was conducted at Sina Hospital in 2011.

This research is a retrospective cross-sectional study. The study population consisted of all abdominal aortic aneurysm patients who were treated at Sina Hospital in Tehran from September 2011 to December 2019. All patients who met the inclusion criteria participated in the study. A checklist of required data was prepared and used to extract data from patients' medical case files. Patients' information was completed via telephone contact with patients or their families. Analyses were performed using SPSS software with a 5-percent error rate.

The sample consisted of 194 patients who were divided into two groups. 73 patients (37.6%) underwent open surgery and 121 patients (62.4%) underwent EVAR. All patients (100%) who underwent open surgery received general anesthesia, while only 15 patients (12.8%) who underwent EVAR received general anesthesia, and 102 patients (87.2%) who underwent EVAR received spinal anesthesia. Rates of blood loss and blood transfusion, length of stay in the intensive care unit (ICU), the total length of postoperative hospitalization for patients who underwent open surgery were significantly higher than for those who underwent EVAR (P-value <0.001). The mortality probability of patients with a history of CVA and smoking was3.47 and 2.66 times higher than those with a negative history of these cases, respectively. Although average EF was higher in living patients compared to deceased ones, this difference was not statistically significant (P-value= 0.161).

Surgery duration, length of stay in ICU, length of hospital stay, and rate of blood transfusion of patients undergoing EVAR was reduced in comparison with those undergoing open surgery.