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transseptal catheterizationCardiology A method used to measure the left atrial and left ventricular pressure and for percutaneous mitral balloon valvoplasty, catheter ablation of accessory–electrical pathways on the left side of the heart, and for evaluation of complex hemodynamics. See Cardiac catheterization.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.