Left ventricular function impairment in pregnancy-induced hypertension.
Am J Hypertens
; 14(3): 271-5, 2001 Mar.
Article
en En
| MEDLINE
| ID: mdl-11281240
ABSTRACT
The changes induced by transient hypertension on cardiac structure and function are unclear. Pregnancy-induced hypertension offers a natural and spontaneous model of this condition. To assess the potential of echocardiographic Doppler to unmask left ventricular function impairment, we studied 28 women aged 26.4 +/- 7.2 years with pregnancy-induced hypertension defined as blood pressure higher than 140/90 mm Hg in the third trimester of pregnancy without a history of hypertension. Twenty normal pregnant women, aged 27.5 +/- 6.4 years, were the controls. Left ventricular diastolic diameter, fractional shortening, E velocity, A velocity, E/A ratio, isovolumetric relaxation time (IRT), isovolumetric contraction time (ICT), ejection time (ET), and the combined index of myocardial performance (Tei index = IRT + ICT/ET), were calculated by echocardiography Doppler 2 to 4 days postpartum. There were statistically significant differences between groups in the following parameters E/A ratio 1.3 +/- 0.3 in pregnancy-induced hypertension v 1.5 +/- 0.3 in normal pregnant women (P < .05), IRT 104 +/- 14 msec v 84 +/- 7 msec (P < .000), and the Tei index 0.51 +/- 0.15 v 0.35 +/- 0.04 (P < .00), respectively. According to this data pregnancy-induced hypertension evaluated 2 to 4 days after delivery showed left ventricular dysfunction, mainly diastolic. The IRT and the Tei index are the most useful echocardiographic parameters to unmask left ventricular dysfunction in pregnancy-induced hypertension.
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Banco de datos:
MEDLINE
Asunto principal:
Complicaciones Cardiovasculares del Embarazo
/
Disfunción Ventricular Izquierda
/
Hipertensión
Tipo de estudio:
Prognostic_studies
Límite:
Adolescent
/
Adult
/
Female
/
Humans
/
Pregnancy
Idioma:
En
Revista:
Am J Hypertens
Asunto de la revista:
ANGIOLOGIA
Año:
2001
Tipo del documento:
Article
País de afiliación:
Argentina