Usefulness of echocardiography and Doppler in the detection of segmental myocardial ischemia
Tóm tắt
Echocardiography and Doppler was performed in 20 patients during percutaneous transluminal coronary angioplasty of a right coronary artery to evaluate the usefulness of echocardiography and Doppler in the detection of segmental myocardial ischemia. Wall motion analysis was also compared to the occurrence of chest pain in relation to electrocardiographic and hemodynamic changes. Even in the case of small segmental myocardial ischemia, the two-dimensional echocardiographic evaluation of wall motion is superior to all other measured parameters. Contrary to this, the Doppler examination of transmitral flow is not sensitive enough in the detection of such small segmental myocardial ischemia, induced by right coronary artery occlusion.
Tài liệu tham khảo
Labovitz AJ, Lewen MK, Kern M, et al. Evaluation of left ventricular systolic and diastolic dysfunction during transient myocardial ischemia produced by angioplasty. J Am Coll Cardiol 1987; 10: 748–55.
Koolen JJ, Visser CA, David GK, et al. Transoesophageal echocardiographic assessment of systolic and diastolic dysfunction during percutaneous transluminal coronary angiopiasty. J Am Soc Echo 1990; 3: 374–83.
Henry WL. Report of the American Society of Echocardiography, Committee on Nomenclature and Standards: Identification of myocardial wall segments. American Society of Echocardiography, Raleigh, NC, Nov., 1982.
Gallagher K, Kumada T, Koziol JA, et al. Significance of regional wall thickening abnormalities relative to transmural myocardial perfusion in anesthetized dogs. Circulation 1980; 62: 1266–73.
Stamm RB, Gibson RS, Bishop HL, et al. Echocardiographic detection of infarct-localized asynergy and remote asynergy during acute myocardial infarction: correlation with the extent of angiographic coronary disease. Circulation 1983; 67, 1: 233–44.
Presti LF, Gentile R, Armstrong WF, et al. Improvement in regional wall motion after percutaneous transluminal coronary angioplasty during acute myocardial infarction: utility of two-dimensional echocardiography. Am Heart J 1988; 115: 1149–55.
Hong Yong-Woo, Orihashi K, Oka Y. Intraoperative monitoring of regional wall motion abnormalities for detecting myocardial ischemia by transoesophageal echocardiography. Echocardiography 1990; 7, 3: 323–41.
Ehlert FA, Rosenblum J, Gandhi DK, et al. Evidence of hibernating myocardium by a new transoesophageal echocardiographic technique. J Am Soc Echo 1990; 3: 420–3.
Wijns W, Serruys PW, Slager CJ, et al. Effect of coronary occlusion during percutaneous transluminal angioplasty in humans on left ventricular chamber stiffness and regional diastolic pressure-radius relations. J Am Coll Cardiol 1986; 7: 455–63.
Lattanzi F, Picano E, Masini OM, et al. Transmitral flow changes during dipyridamole-induced ischemia. A Dopplerechocardiographic study. Chest 1989; 95: 1037–42.
Bowman LK, Cleman MW, Cabin HS, et al. Dynamics of early and late left ventricular filling determined by Doppler two-dimensional echocardiography during percutaneous transluminal coronary angioplasty. Am J Cardiol 1988; 61: 541–5.