Swan-Ganz catheter
A flow-directed, balloon-tipped catheter inserted into the pulmonary artery for advanced hemodynamic monitoring.
Full Definition
The Swan-Ganz catheter, formally known as a pulmonary artery catheter (PAC), is a sophisticated monitoring device used in cardiac anesthesia and critical care to assess cardiovascular function. Named after its inventors, Jeremy Swan and William Ganz, this multi-lumen catheter is inserted through a central vein and advanced through the right heart into the pulmonary artery. It provides continuous measurement of central venous pressure, pulmonary artery pressures, pulmonary capillary wedge pressure, cardiac output, and mixed venous oxygen saturation. These parameters allow clinicians to evaluate cardiac function, fluid status, and tissue oxygen delivery, making it invaluable for managing complex cardiac surgical patients.
Usage
Usage note: Capitalize both parts of the eponym; PAC is acceptable in subsequent references.
In Context
- "A Swan-Ganz catheter was inserted for continuous cardiac output monitoring during the high-risk procedure." — anesthesia record
- "The Swan-Ganz catheter readings showed elevated pulmonary pressures consistent with right heart failure." — clinical note