Performance Status
Standardized measure of a cancer patient's functional capacity and ability to tolerate surgical intervention.
Full Definition
Performance status is a crucial assessment tool in oncologic surgery that quantifies a patient's functional capacity and overall well-being. The most commonly used scales are the Eastern Cooperative Oncology Group (ECOG) scale (0-4) and the Karnofsky Performance Scale (0-100). These assessments help determine surgical candidacy, predict perioperative risk, and guide treatment decisions. Patients with good performance status (ECOG 0-1, Karnofsky 80-100) are generally considered better candidates for aggressive surgical intervention, while poor performance status may indicate need for palliative rather than curative approaches.
Usage
Usage note: Always specify which scale is used (ECOG vs. Karnofsky) and document the specific score.
In Context
- "The patient's excellent performance status (ECOG 0) supported proceeding with major hepatic resection." — preoperative evaluation
- "Given the patient's declining performance status, palliative rather than curative surgery was recommended." — oncology consultation