Risk score for postoperative complications in thoracic surgery

Area of Science:

• Thoracic Surgery
• Critical Care Medicine
• Surgical Oncology

Background:

• Risk scoring systems for thoracic surgery patients are not widely utilized.
• A need exists for a validated tool to predict postoperative complications.
• Prolonged intensive care unit (ICU) stay was selected as a proxy for postoperative complications.

Purpose of the Study:

• To develop a risk scoring system for predicting prolonged ICU stay (> 3 days) in patients undergoing major thoracic surgery.
• To identify significant risk factors associated with postoperative complications.

Main Methods:

• Retrospective analysis of 858 patients undergoing major lung and esophageal cancer surgeries (2005-2007).
• Multivariable logistic regression was employed to identify predictors of prolonged ICU stay.
• A risk score formula was derived based on significant risk factors.

Main Results:

• 9% of patients experienced ICU stays exceeding 3 days.
• Significant predictors identified: age, operation type (pneumonectomy, esophageal cancer surgery, completion pneumonectomy, extended operation), preoperative lung injury, absence of epidural analgesia, and predicted postoperative forced expiratory volume in 1 second (ppoFEV1).
• A predictive formula incorporating these factors was established.

Conclusions:

• Age, specific operation types, preoperative lung injury, epidural analgesia status, and ppoFEV1 are significant predictors of postoperative morbidity in thoracic surgery.
• The developed risk score can aid in predicting and potentially mitigating postoperative complications.