Serial changes in cardiac output during normal pregnancy: a Doppler ultrasound study

Hennessy, Terence; MacDonald, Dermot; Hennessy, Marie S.; Maguire, M J; Blake, Sean; McCann, Hugh A.; Sugrue, D.

doi:10.1016/s0301-2115(95)02582-0

Cited by 35 publications

(21 citation statements)

References 14 publications

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“…Previous studies, using TTE in normal pregnancy, have reported that the HR typically increases by 15-20%, SV increases by 20-25%, and CO increases by 30- 50% [4,9-11,13,15]. In our study, we demonstrated that the HR increased by approximately 20%, SV increased by 40%, and CO increased by 80-85% using TTE and CMR.…”

Section: Discussionsupporting

confidence: 67%

Cardiovascular magnetic resonance in pregnancy: Insights from the cardiac hemodynamic imaging and remodeling in pregnancy (CHIRP) study

Ducas

Elliott

Melnyk

et al. 2014

Journal of Cardiovascular Magnetic Resonance

171

130

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BackgroundCardiovascular disease in pregnancy is the leading cause of maternal mortality in North America. Although transthoracic echocardiography (TTE) is the most widely used imaging modality for the assessment of cardiovascular function during pregnancy, little is known on the role of cardiovascular magnetic resonance (CMR). The objective of the Cardiac Hemodynamic Imaging and Remodeling in Pregnancy (CHIRP) study was to compare TTE and CMR in the non-invasive assessment of maternal cardiac remodeling during the peripartum period.MethodsBetween 2010–2012, healthy pregnant women aged 18 to 35 years were prospectively enrolled. All women underwent TTE and CMR during the third trimester and at least 3 months postpartum (surrogate for non-pregnant state).ResultsThe study population included a total of 34 women (mean age 29 ± 3 years). During the third trimester, TTE and CMR demonstrated an increase in left ventricular end-diastolic volume from 95 ± 11 mL to 115 ± 14 mL and 98 ± 6 mL to 125 ± 5 mL, respectively (p < 0.05). By TTE and CMR, there was also an increase in left ventricular (LV) mass during pregnancy from 111 ± 10 g to 163 ± 11 g and 121 ± 5 g to 179 ± 5 g, respectively (p < 0.05). Although there was good correlation between both imaging modalities for LV mass, stroke volume, and cardiac output, the values were consistently underestimated by TTE.ConclusionThis CMR study provides reference values for cardiac indices during normal pregnancy and the postpartum state.

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Section: Discussionsupporting

confidence: 67%

Cardiovascular magnetic resonance in pregnancy: Insights from the cardiac hemodynamic imaging and remodeling in pregnancy (CHIRP) study

Ducas

Elliott

Melnyk

et al. 2014

Journal of Cardiovascular Magnetic Resonance

171

130

View full text Add to dashboard Cite

show abstract

“…In addition, the HIV-infected and control groups were closely matched in all demographic characteristics; therefore, the possibility of residual confounding that masks a true difference between groups is less likely. Cardiac output was lower in our study than in previous longitudinal studies of pregnant women(15, 16), which may have limited our ability to observe the effect of increased hemodynamic stress on heart function. Finally, because we do not have viral load and CD4 counts, we cannot objectively confirm the immune status of the HIV-infected women.…”

contrasting

confidence: 89%

HIV infection is not associated with echocardiographic signs of cardiomyopathy or pulmonary hypertension among pregnant Ugandan women

Longenecker

Mondo

et al. 2011

International Journal of Cardiology

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“…In addition, the HIVinfected and control groups were closely matched in all demographic characteristics; therefore, the possibility of residual confounding that masks a true difference between groups is less likely. Cardiac output was lower in our study than in previous longitudinal studies of pregnant women [15,16], which may have limited our ability to observe the effect of increased hemodynamic stress on heart function. Finally, because we do not have viral load and CD4 counts, we cannot objectively confirm the immune status of the HIV-infected women.…”

contrasting

confidence: 86%

Case report: Chest pain, intermittent left bundle branch block and negative T waves

Heyning

Moerenhout

Vrints

2011

International Journal of Cardiology

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Serial changes in cardiac output during normal pregnancy: a Doppler ultrasound study

Cited by 35 publications

References 14 publications

Cardiovascular magnetic resonance in pregnancy: Insights from the cardiac hemodynamic imaging and remodeling in pregnancy (CHIRP) study

Cardiovascular magnetic resonance in pregnancy: Insights from the cardiac hemodynamic imaging and remodeling in pregnancy (CHIRP) study

HIV infection is not associated with echocardiographic signs of cardiomyopathy or pulmonary hypertension among pregnant Ugandan women

Case report: Chest pain, intermittent left bundle branch block and negative T waves

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