Surgery>>>>>Chest Wall, Pleura, and Mediastinum
Question 9#

A 57-year-old non-small-cell lung cancer patient with a potentially resectable tumor found on computed tomography (CT) scan who can walk on a flat surface indefinitely without oxygen or stopping to rest, secondary to dyspnea will most likely tolerate:

a. Lobectomy
b. Pneumonectomy
c. Single-lung ventilation
d. Wedge resection

Correct Answer is A

Comment:

Patients with potentially resectable tumors require careful assessment of their functional status and ability to tolerate either lobectomy or pneumonectomy. The surgeon should first estimate the likelihood of pneumonectomy, lobectomy, or possibly sleeve resection, based on the CT images. A sequential process of evaluation then unfolds. 

A patient's history is the most important tool for gauging risk. Specific questions regarding performance status should be routinely asked. If the patient can walk on a flat surface indefinitely, without oxygen and without having to stop and rest secondary to dyspnea, he will be very likely to tolerate lobectomy. If the patient can walk up two flights of stairs (up two standard levels), without having to stop and rest secondary to dyspnea, he will likely tolerate pneumonectomy. Finally, nearly all patients, except those with carbon dioxide (CO2) retention on arterial blood gas analysis, will be able to tolerate periods of single-lung ventilation and wedge resection.