Preoperative monocyte/lymphocyte ratio for type Stanford A aortic dissection prediction of the occurrence of hypoxemia after small-incision aortic dissection

ZHANG Xiao-hui; NIU Tian-yu; SUN Biao; LU Yu-chuan; XU Zi-tong; JIANG Hui; DU Ye-jun

doi:10.16048/j.issn.2095-5561.2024.06.03

Abstract：Objective To explore the Preoperative monocyte/lymphocyte(MLR)ratio for acute type A aortic dissection(ATAAD)prediction of the occurrence of hypoxemia after small-incision aortic dissection.Methods A total of 65 patients who were diagnosed with ATAAD by thoracic and abdominal aortic CTA and treated in the General Hospital of the Northern Theater Command from January to December 2023 were selected,including 47 males and 18 females,with an age of(53.56±10.07)years old,ranging from 28 to 73 years.All patients underwent small incision aortic dissection surgery.The occurrence of hypoxemia in patients was assessed,and the preoperative baseline data,surgical conditions,and postoperative conditions of patients who did not develop hypoxemia were compared with those of patients who developed hypoxemia.Results Comparison of preoperative MLR levels and intraoperative cardiopulmonary bypass time between patients with hypoxemia and patients with no hypoxemia,the difference was statistically significant(P＜0.05).Multivariate logistic regression analysis showed that a higher preoperative MLR level was an independent risk factor for the development of hypoxemia after ATAAD patients undergoes small incision aortic dissection.The results of the receiver operating characteristic curve showed that preoperative MLR had a certain predictive value for the development of hypoxemia after ATAAD patients undergoes small incision aortic dissection(area under the curve 0.734,cutoff value 0.86,P＜0.05).Conclusions A high preoperative MLR level is an independent risk factor for the development of postoperative hypoxemia after acute Stanford type A small incision aortic dissection,and preoperative MLR has a certain predictive value for the development of postoperative hypoxemia after acute Stanford type A small incision aortic dissection.