Analysis Of Risk Factors For Spinal Cord Injury After Descending Thoracic And Abdominal Aortic Aneurysm Repair

[Background]Open thoracoabdominal aortic aneurysm repair(TAAAR)is the main surgical treatment for thoracoabdominal aortic aneurysm.However,the incidence of postoperative serious complications after this procedure can not be ignored.Spinal cord injury(SCI)which can lead to paraplegia or paralysis and decrease quality of life is one of the adverse complications after open TAAAR.[Objective]The aim of this study is to investigate perioperative risk factors which are associated with SCI after open descending thoracic and abdominal aortic aneurysm repair(DTAAAR).[Methods]Clinical data of 130 patients undergoing descending thoracic and abdominal aortic aneurysm repair from March 2013 to September 2018 were collected.Patients were divided into a control group and a SCI group according to the presence of SCI events.Variables with P value<0.2 and considered factors that may affect postoperative spinal cord ischemia in the clinical practice were incorporated into the multivariate Logistic regression model.[Results]Body mass index(BMI)≥30 kg/m~2(B:1.692,OR:5.428,95%CI:1.241～23.744,P=0.025)and thoracic aortic cross clamp time(B:0.020,OR:1.02,95%CI:1.000～1.040,P=0.045)were significantly associated with SCI after DTAAAR.[Conclusions]Obesity(BMI≥ 30 kg/m~2)and prolonged thoracic aortic cross clamp time were independent risk factors for SCI after DTAAAR.