Wedged Swanndash;Ganz Catheter Causing Ventilationmdash;Perfusion MismatchCase Report and Review of the Literature

摘要

A ventilationndash;perfusion (Vsol;Q) lung scan in a postoperative patient with a Swanndash;Ganz catheter showed an area of mismatch suggesting pulmonary embolism. Radiographs, as well as failure to get a venous return from the catheter suggested wedging. A pulmonary angiogram, performed after the Swanndash;Ganz catheter was pulled back, was essentially normal. An autopsy performed within 24 hours of the lung scan did not reveal pulmonary emboli. Wedged Swanndash;Ganz catheter was probably responsible for the Vsol;Q mismatch.