Risk Factors for Postoperative Pulmonary Complications in Patients Undergoing Thoracotomy for Indications Other than Primary Lung Cancer Resection: A Multicenter Retrospective Cohort Study from the German Thorax Registry.

Background

Postoperative pulmonary complications (PPCs) are the most common complications following lung surgery and can lead to increased postoperative mortality. In this study, we examined the incidence of PPCs, the in-hospital mortality rate, and the risk factors associated with PPCs in patients undergoing open thoracotomy lung resection (OTLR) for reasons other than primary lung cancer.

Methods

Data from this multicenter, retrospective study involving 1.368 patients were extracted from the German Thorax Registry and analyzed using univariate and multivariable statistical methods.

Results

In total, 278 patients showed at least one PPC. The presence of PPCs was associated with a significantly higher in-hospital mortality rate (7.2% vs. 1.5%; p = 0.000). Multivariable stepwise logistic regression analysis showed absolute age (OR 1.02) and BMI ≤ 19 (OR 2.6) as independent patient-specific risk factors. Significant preoperative risk factors included re-thoracotomy (OR 4.0) and FEV1 < 60% (OR 2.5). Procedure-related independent risk factors for PPCs included a surgical duration surpassing 195 min (OR 2.7), the continuation of invasive ventilation post-surgery (OR 3.8), and an intraoperative infusion of crystalloids greater than 6 mL/kg/h (OR 1.8).

Conclusions

Optimizing intraoperative fluid therapy and on-table extubation when possible may reduce the incidence of PPCs and associated mortality.