Postoperative Chylothorax After Thoracoabdominal Aortic Aneurysm Repair

Area of Science:

• Cardiovascular Surgery
• Thoracic Surgery
• Surgical Complications

Background:

• Chylothorax is a rare but life-threatening complication following thoracoabdominal aortic aneurysm (TAAA) repair.
• Understanding its incidence, associated factors, and outcomes is crucial for patient management.

Purpose of the Study:

• To describe the contemporary experience with postoperative chylothorax after TAAA repair.
• To identify perioperative variables associated with chylothorax development.
• To assess treatment outcomes for this complication.

Main Methods:

• Retrospective review of 1092 consecutive patients undergoing TAAA repair from 2005 to 2014.
• Standard bivariate analysis to compare patient groups.
• Analysis of treatment strategies and outcomes.

Main Results:

• Eleven patients (0.9%) developed postoperative chylothorax.
• Nonoperative management was successful in 8 of 11 patients (73%).
• Chylothorax was associated with increased need for pleural effusion drainage, tracheostomy, longer ICU and hospital stays, and higher risk of graft infection.

Conclusions:

• Postoperative chylothorax after TAAA repair can often be managed nonoperatively.
• Chylothorax significantly increases morbidity, prolongs hospitalization, and raises the likelihood of graft infection.