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A Study of Cardiovascular Hemodynamics in Preeclamptic and Normotensive Pregnancies and its Association with Maternal
Sneha Agarwal1, Seema Mehrotra1, Vandana Solanki1
1Department of Obstetrics and Gynaecology, King George's Medical University, Lucknow, India.
Insights
Preeclampsia significantly alters maternal cardiac function, increasing left ventricular volumes and mass while reducing ejection fraction. These echocardiographic changes are linked to severe maternal complications and adverse outcomes.
Area of Science:
- Cardiology
- Obstetrics
- Maternal Health
Background:
- Preeclampsia (PE) causes significant maternal cardiac remodeling, including increased afterload, end-systolic pressure, and reduced left ventricular emptying.
- Both systolic and diastolic cardiac dysfunction occur in preeclampsia, with diastolic dysfunction often preceding systolic dysfunction.
Purpose of the Study:
- To assess cardiovascular hemodynamic functions in normotensive and preeclamptic women.
- To investigate the association between echocardiographic findings and maternal outcomes in preeclampsia.
Main Methods:
- A prospective cohort study involving 158 women (79 with PE, 79 normotensive controls).
- Echocardiography was performed on all participants to evaluate cardiac geometry and function.
- Data collected over one year at a tertiary healthcare center.
Main Results:
- Preeclamptic women showed higher left ventricular end-systolic volume, end-diastolic volume, systolic mass, diastolic diameter, systolic diameter, E wave, and A wave compared to normotensive controls.
- Ejection fraction and E/A ratio were significantly lower in preeclamptic women.
- Abnormal echocardiographic findings correlated with adverse maternal outcomes like pulmonary edema, cardiomyopathy, abruptio placentae, eclampsia, acute kidney injury, and HELLP syndrome.
Conclusions:
- Preeclampsia is associated with significant alterations in maternal cardiac geometry and function, including impaired systolic and diastolic performance.
- Echocardiographic abnormalities in preeclampsia are linked to a higher incidence of severe maternal morbidity and mortality.
- Cardiovascular assessment via echocardiography is crucial for identifying high-risk pregnancies and predicting adverse outcomes in preeclampsia.
Background:
Preeclampsia (PE) leads to substantial changes in maternal cardiac geometry and function such as elevated afterload which leads to elevated end systolic pressure and reduced emptying of the left ventricle. Systolic and diastolic dysfunction both occurs in preeclampsia where diastolic dysfunction precedes systolic dysfunction. The aim of our study was to assess cardiovascular hemodynamic functions in normotensive and preeclamptic women and its association with maternal outcome.
Material And Method:
It was a prospective cohort study conducted in a tertiary healthcare center over one year. One hundred and fifty-eight women, 79 women with PE (group A) and 79 normotensive women (group B), were selected. Echocardiography was performed in all recruited women for maternal outcome.
Result:
The following echocardiographic parameters were higher in preeclamptic subjects as compared to normotensive women: LV ESV (50.40 ± 15.08ml vs. 40.34 ± 5.24ml); LV EDV (103.77±17.78ml vs. 89.23±7.90ml); LV systolic mass(91.28±10.80gm vs 82.90±4.68gm); LV diastolic diameter (4.26 ± 0.35cm vs. 3.93±0.16cm); LV systolic diameter 2.67 ± 0.54cmvs 2.14 ± 0.29cm); E wave (0.86±0.25m/s vs. 0.75±0.07 m/s); and A wave (0.82±0.16m/s vs. 0.64±0.09 m/s). However, parameters such as ejection fraction (55.41 ±11.83% vs. 64.50±3.63%) and E/A ratio (1.06±0.28 vs. 1.17±0.09) were lower in preeclamptic women. Women with abnormal ECHO finding were associated with pulmonary edema, cardiomyopathy, abruptio, eclampsia, and mortality and adverse obstetrical outcomes like abruption, AKI, eclampsia, and HELLP syndrome.
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