The Effect of Single Lung Ventilation Duration on Postoperative Pulmonary Complications in Thoracic Surgery

Dr Abdurrahman Yurtaslan Ankara Oncology Training and Research Hospital134 enrolled

Overview

This observational study investigates the relationship between the duration of single-lung ventilation (SLV) and the incidence of postoperative pulmonary complications (PPCs) such as pneumonia, pneumothorax, hemothorax, acute lung injury, and acute respiratory distress syndrome (ARDS) in adult patients undergoing thoracic surgery. A total of 134 patients aged 18-85 years, scheduled for thoracic surgery requiring SLV, will be monitored. Data including SLV duration, perioperative parameters, and postoperative pulmonary outcomes will be analyzed.

Study Type

OBSERVATIONAL

Enrollment

134

Conditions

Postoperative Pulmonary Complications One Lung Ventilation Ards Postoperative Pulmonary Atelectasis

Interventions

In this observational study, the naturally occurring duration of intraoperative single-lung ventilation (SLV) during thoracic surgery will be recorded. No intervention is applied or modified for research purposes. The exposure of interest is the total duration (in minutes) of SLV, which will be timed from initiation to termination during surgery. This variable will be analyzed in relation to postoperative pulmonary complications.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 85 Years

Medical Language ↔ Plain English

Inclusion Criteria: Age ≥18 years Undergoing thoracic surgery OLV planned during the procedure Exclusion Criteria: Pediatric patients Patients not requiring OLV Previous thoracic surgery

Outcomes

Primary Outcomes

Postopertive Pulmonary Complications

Postoperative pulmonary complications (PPCs) are defined as respiratory events occurring within the first seven days following thoracic surgery, which negatively impact patient outcomes. In this study, PPCs include pneumonia, pneumothorax, hemothorax, acute lung injury, acute respiratory distress syndrome (ARDS), prolonged oxygen requirement, unplanned reintubation, and the need for non-invasive ventilation. These complications will be identified through clinical assessment, arterial blood gas analysis, and postoperative imaging such as chest X-rays. Each case will be evaluated using predefined diagnostic criteria to ensure consistency. The incidence of PPCs will be analyzed in relation to the duration of intraoperative single-lung ventilation.

Time frame: postoperative 7 days