Postoperative pulmonary complications in acute type A aortic dissection.

Area of Science:

• Cardiovascular Surgery
• Thoracic Surgery
• Critical Care Medicine

Background:

• Acute Type A Aortic Dissection (ATAAD) is a life-threatening condition requiring emergency surgical intervention.
• Postoperative pulmonary complications (PPCs) are significant concerns following major thoracic surgeries, impacting patient recovery and survival.

Purpose of the Study:

• To identify perioperative risk factors for PPCs in patients undergoing emergency ATAAD surgery.
• To assess the impact of PPCs on short- and long-term outcomes in this patient population.

Main Methods:

• Retrospective analysis of 750 adult patients undergoing emergency ATAAD surgery from January 2017 to December 2019.
• Multivariable logistic regression was used to identify risk factors for PPCs.
• Outcomes evaluated included in-hospital mortality, 30-day mortality, length of stay, healthcare costs, and long-term survival.

Main Results:

• The incidence of PPCs was 12.1% (91 patients).
• Independent risk factors for PPCs included smoking, previous cardiac surgery, cardiopulmonary bypass (CPB) time, and red blood cell transfusion.
• PPCs were associated with significantly higher 30-day mortality, longer ICU and hospital stays, increased costs, and reduced long-term survival.

Conclusions:

• PPCs occur frequently in ATAAD surgery and negatively impact patient prognosis.
• Identifying and mitigating risk factors such as smoking, prior cardiac surgery, CPB duration, and transfusion needs is crucial for improving outcomes.