Читать книгу Practical Cardiovascular Medicine - Elias B. Hanna - Страница 152

Echo often shows LV dysfunction that is non-specific, as it may be secondary to acute ischemia but also post-cardiac arrest myocardial stunning or chronic cardiomyopathy. Echo may be more specific in some settings, particularly when segmental dysfunction is present: (i) segmental akinesis of a thin myocardium with Q waves and no ST elevation suggests an old infarct and a scar-related VF, rather than acute ischemia VF; (ii) segmental akinesis without Q waves suggests acute ischemia; (iii) preserved LV function with akinetic or dilated RV suggests massive PE.