Regional lung function following upper sleeve lobectomy for bronchogenic carcinoma

Area of Science:

• Thoracic Surgery
• Pulmonary Medicine
• Nuclear Medicine

Background:

• Lung cancer treatment often involves lobectomy.
• Upper sleeve lobectomy is a lung-sparing alternative to simple upper lobectomy.
• Assessing regional lung function post-surgery is crucial for evaluating outcomes.

Purpose of the Study:

• To compare regional lung function after upper sleeve lobectomy versus simple upper lobectomy for lung cancer.
• To evaluate ventilation and perfusion in the operated lung segment over time.

Main Methods:

• Utilized Krypton 81m for regional ventilation assessment.
• Employed Technetium 99m for regional pulmonary blood flow (perfusion) studies.
• Measurements were conducted 12-24 months post-surgery in patients undergoing right/left upper sleeve or simple upper lobectomy.

Main Results:

• No statistically significant differences in ventilation or perfusion were found between sleeve lobectomy and simple lobectomy groups.
• Right upper sleeve lobectomy showed ventilation of 42.9% and perfusion of 37.4%.
• Left upper sleeve lobectomy demonstrated ventilation of 29.9% and perfusion of 19.2%.

Conclusions:

• Regional lung function is well-preserved following sleeve lobectomy for lung cancer.
• Sleeve lobectomy offers comparable functional outcomes to simple lobectomy.
• Gradual improvement in regional lung function was observed post-operatively.