An analysis was made of 1,554 patients over a two-year period. Procedures performed included cardiac catheterization, angiocardiography, arteriography, cardioversion, and catheter-electrode placement. Of the 72 significant complications that developed, 59 (82%) were circulatory in origin. Four patients died (0.3%), three of whom were less than 2 months of age. Nine procedures were discontinued because of complications.
Lundborg RO, Sessler AD, Ritter DG, Moffitt EA. Cardiorespiratory Complications in a Cardiovascular LaboratoryAnesthesiologists' View. JAMA. 1967;202(13):1129–1131. doi:10.1001/jama.1967.03130260051008
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