ArticleHeart and vessels2014
"Wedge effect" in stenosed coronary artery assessed using a PressureWire: change in pressure waveform during percutaneous coronary intervention in a patient with a coronary artery-left ventricular fistula.
Article in Heart and vessels, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
In this case report, we describe the recovery of abnormal coronary pressure waveform using a PressureWire Certus during percutaneous coronary intervention in a patient with severe stenosis in the proximal segment of the left anterior descending coronary artery. Since the diastolic pressure in the distal left anterior descending coronary artery was lower than that in the aorta, the pressure waveform before percutaneous coronary intervention represented the left ventricular pressure through a fistula due to a "wedge effect" in the stenosis as if the pulmonary artery wedge pressure determined by a Swan-Ganz catheter reflected the pressure in the distal portion (left atrium). We diagnosed this case coronary artery-left ventricular fistula based on the above findings. PressureWire Certus may be a valuable tool with which to estimate the hemodynamics in a patient with a coronary anomaly.
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