Echocardiographic characteristics including tissue Doppler imaging after enhanced external counterpulsation therapy.
This study assessed the effects of a course of enhanced external counterpulsation (EECP) therapy on systolic and diastolic cardiac function using echocardiography to measure left ventricular ejection fraction (LVEF), end-systolic volume (ESV), end-diastolic volume (EDV), systolic wave (Sm), early diastolic wave (Ea), Vp, E/Ea, E/Vp, and diastolic function grade in 25 patients before and after 35 hours of EECP. EECP reduced ESV and EDV and increased ejection fraction significantly in patients with baseline LVEF < or = 50% (P=.018, .013, .002), baseline E/Ea > or = 14 (P=.032, .038, .007), baseline grade II or III diastolic dysfunction (decreased compliance) (P=.014, .032, .027), baseline Ea <7 cm/s (P=.015, .024, .001), and baseline Sm <7 cm/s (P=.017, .016, .006), but not in patients with baseline LVEF >50%, baseline E/Ea <14, baseline normal diastolic function or grade I diastolic dysfunction (impaired relaxation), baseline Ea > or = 7 cm/s, and Sm > or = 7 cm/s. These results demonstrate improved systolic and diastolic function in selected patients and provide new insight into potential clinical applications of EECP.
Estahbanaty
Gilda
G
Shahid-Radjaie Cardiovascular Center, Iran Medical University, Tehran, Iran. gildaestahbanaty@yahoo.fr
Samiei
Niloufar
N
Maleki
Majid
M
Noohi
Fereidoon
F
Mohebi
Ahmad
A
Ojaghi
Zahra
Z
Esmaeilzadeh
Maryam
M
Sadeghpour
Anita
A
Soran
Ozlem
O
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000787:Angina Pectoris / Q000000981:diagnostic imaging* / Q000628:therapy; D015908:Counterpulsation / Q000295:instrumentation*; D003971:Diastole; D005260:Female; D006305:Health Status Indicators; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013318:Stroke Volume / Q000502:physiology*; D013599:Systole; D013997:Time Factors; D014463:Ultrasonography