Guidewire-induced coronary pseudostenosis as a source of error during physiological guidance of stent deployment

Coronary pseudostenoses are a known result of the interaction between tortu ous vessels and guidewires and are generally handled by the interventionali st as inocuous side effects of intracoronary instrumentation. The present r eport demonstrates that pseudostenosis may have hemodynamic relevance and m ay constitute an important source of error when physiological guidance of p ercutaneous procedures is performed using sensor-tipped guidewires. Cathet, Cardiovasc, Intervent 51:91-94, 2000. (C) 2000 Wiley-Liss, Inc.