Detection of postischemic regional left ventricular delayed outward wall motion or diastolic stunning after exercise-induced ischemia in patients with stable effort angina by using color kinesis

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography
Katsuhisa IshiiMasaki Kawanami

Abstract

To determine whether postischemic diastolic stunning could be detected using color kinesis, we evaluated regional left ventricular (LV) diastolic wall motion in 36 patients with stable effort angina and a coronary stenosis (> or = 70% of luminal diameter), and in 30 control subjects. Regional LV filling fraction in the short-axis view during the first 30% of the LV filling time (color kinesis diastolic index) was determined before, 20 minutes, 1 hour, and 24 hours after the treadmill exercise test. In 33 of the 36 patients (92%), new regional LV delayed outward motion during early diastole (color kinesis diastolic index < or = 40%) was detected at 20 minutes after exercise. The regional LV delayed diastolic wall motion showed significant improvement but persisted 1 hour afterward in 20 of 36 patients (56%), and disappeared 24 hours after exercise. Detection of regional stunned myocardium with impaired diastolic function may be a useful tool for the diagnosis of coronary artery disease.

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Citations

Aug 1, 2012·Cardiovascular Ultrasound·Jelena CelutkieneAleksandras Laucevicius
Jul 8, 2010·Circulation Journal : Official Journal of the Japanese Circulation Society·Motoko HosakaNobuhisa Hagiwara
Aug 6, 2014·Cardiology Clinics·Todd D MillerNandan S Anavekar
Dec 17, 2010·Heart Failure Reviews·Kamran A Shaikh, Miguel A Quinones
Feb 24, 2009·Journal of the American College of Cardiology·Theodore P Abraham, Hsin-Yueh Liang
Jan 14, 2012·JACC. Cardiovascular Imaging·Marek Belohlavek
Nov 17, 2015·Heart Failure Clinics·Todd D MillerNandan S Anavekar

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