Predictors of Outcome in Modern Surgery for Lung Abscess

Area of Science:

• Thoracic Surgery
• Infectious Diseases
• Critical Care Medicine

Background:

• Lung abscess surgery presents significant challenges with unclear timing and indications.
• Identifying predictors of surgical outcomes is crucial for defining the role of intervention.
• Multicenter data collection across Europe and the US addresses this knowledge gap.

Purpose of the Study:

• To identify predictors of mortality in patients undergoing major thoracic surgery for infectious lung abscess.
• To clarify the impact of preoperative conditions and surgical extent on patient outcomes.
• To inform surgical decision-making and improve patient management strategies.

Main Methods:

• Retrospective analysis of 91 patients who underwent major thoracic surgery for lung abscess between 2000 and 2016.
• Data collected from six general thoracic surgery centers in Germany, Spain, the UK, and the US.
• Statistical analysis to determine factors associated with 30-day mortality, including preoperative conditions, comorbidities, and surgical procedures.

Main Results:

• Preoperative sepsis, persistent air leak, respiratory failure, and acute renal failure were significant predictors of higher mortality (p < 0.01).
• A Charlson index of comorbidity ≥ 3 was strongly associated with increased mortality (OR: 7.19, p < 0.01).
• Age > 70 and the extent of pulmonary resection (segmentectomy, lobectomy, pneumonectomy) did not significantly influence mortality.

Conclusions:

• Delayed surgical referral is a common issue in lung abscess management.
• Pulmonary sepsis, septic complications (air leak, empyema), organ failure, and high comorbidity burden are key predictors of fatal outcomes.
• The extent of surgical resection is not a significant determinant of mortality in lung abscess surgery.