XXXX during pregnancy: two-dimensional and pulsed Doppler echocardiographic observations.

@entity1 @entity997 @entity15202 @entity299
Although precordial murmurs occur frequently during pregnancy, their origin is rarely known. To investigate the nature of these murmurs, 2-dimensional (2-D) and pulsed Doppler echocardiography was performed in 81 asymptomatic pregnant @entity1 who had new systolic precordial murmurs. End-systolic right atrial dimensions, early diastolic tricuspid anular diameters, and end-diastolic right ventricular diameters were measured from the apical 4-chamber view and compared with measurements from 26 young nonpregnant @entity1 without known @entity299 . @entity997 ( @entity997 ) was detected by pulsed Doppler echocardiography in 35 of 81 pregnant @entity1 . Thirty-two pregnant @entity1 had normal 2-dimensional and pulsed Doppler echocardiographic findings. Other @entity15202 were detected in 14 pregnant @entity1 . The right-sided intracardiac diameters were larger in all groups of pregnant @entity1 than in non-pregnant control subjects (p less than 0.001). The tricuspid anular diameter was larger in the pregnant @entity1 with @entity997 than in pregnant @entity1 with normal pulsed Doppler echocardiographic findings (24 +/- 2 vs 22 +/- 3 mm, p less than 0.015). No @entity1 had clinical difficulty associated with a murmur. Functional @entity997 , therefore, often occurs in pregnancy and appears to be a result of dilation of the tricuspid anulus. @entity997 may contribute to the development of murmurs in pregnant @entity1 .
