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Biomedical subjects

R L Donnerstein

Publications and source records attributed to R L Donnerstein.

40 records · Page 3Linked to original sources
PubMed1982

Fetal echocardiography. II. The diagnosis and significance of a pericardial effusion in the fetus using real-time--directed M-mode ultrasound.

By means of real-time--directed M-mode ultrasound, the hearts of normal and abnormal fetuses were evaluated for evidence of a pericardial effusion. Because of its limited potential space, the pericardial sac appears to become distended with fluid prior to ultrasound evidence of ascites, pleural effusions, or soft tissue edema. Fetal echocardiography, therefore, appears to be useful in the assessment of fetuses at risk for developing hydrops.

Adult↗
PubMed1982

Fetal echocardiography. I. Normal anatomy as determined by real-time--directed M-mode ultrasound.

With current ultrasound technology, it is now possible to obtain accurate real-time and M-mode information from the fetal heart with the use of real-time--directed M-mode echocardiography. With this method, the M-mode cursor is directed to the fetal cardiac structures of interest while the image is obtained in the real-time mode. This enables M-mode echocardiograms to be obtained in an accurate, reproducible manner. The most useful imaging planes for cardiac evaluation are the long axis four-chamber plane, the short axis plane through the atrioventricular valves, and the short axis plane through the aortic and pulmonic outflow tracts. Once normal fetal cardiac anatomy is understood, structural defects and/or alterations of function can be evaluated accurately antenatally.

Echocardiography↗
PubMed1982

Fetal echocardiography for evaluation of in utero congestive heart failure.

Thirteen fetuses with nonimmune hydrops (22 to 39 weeks of gestation) were evaluated with two-dimensional and M-mode echocardiography. Ten fetuses had cardiovascular abnormalities resulting in heart failure, and three had noncardiac causes of hydrops. In three cases, hydrops was caused by supraventricular tachycardia. One of these fetuses responded to cardioversion at birth, another responded to transplacental digoxin therapy, and the third died with atrial flutter and high-grade atrioventricular block before delivery. There were no cases of "idiopathic" hydrops. Our results show that fetal echocardiography is useful in determining cardiac causes of in utero heart failure resulting in hydrops fetalis. The fetal echocardiogram may also be used in monitoring transplacental therapy of heart failure.

Adolescent↗