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Updated: Jan 9, 2026

Novel and Innovative Hybrid Technique for Type A Aortic Dissection
Published on: March 28, 2025
Risk factors of prolonged mechanical ventilation after acute type A aortic dissection surgery: a single-center
Guanying Chen1, Zhenyu Li2, Zhonglin Lin1
1Department of Cardiovascular Surgery, Guangdong Provincial Cardiovascular Institute, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, South Medical University, Guangzhou, Guangdong, China.
Objective:
To identify the risk factors of prolonged mechanical ventilation after acute type A aortic dissection (ATAAD) surgery.
Methods:
466 patients undergoing ATAAD surgery from 2016.01 to 2021.01were studied retrospectively. Risk factors of delayed extubation (>48 h of ventilation) were identified using univariate and multivariate logistic regression. LASSO regression was used for variable selection. The ICU stay, hospital stay, complications, and 30-day mortality were analyzed.
Results:
Among the patients, 72% experienced delayed extubation. Risk factors included age (OR 1.042, 95% CI 1.005-1.083, P = 0.031), postoperative serum creatinine (Scr, OR 1.006, 95% CI 1.003-1.010, P < 0.001), and acute lung injury (ALI, OR 5.725, 95% CI 2.777-12.148, P < 0.001). Delayed extubation was associated with increased ICU stays, hospital stays, and complications, including MODS and higher mortality.
Conclusions:
Age, postoperative serum creatinine, and acute lung injury are significant risk factors for prolonged ventilation. Early identification and management of these factors may improve postoperative outcomes.
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