Abstract
Purpose
No previous study provided a complete functional evaluation of all cardiac chambers in pregnant women with obesity. Moreover, the impact of cardiovascular changes associated with obesity in pregnancy on maternal outcome is unclear.
Methods
46 consecutive pregnant women with obesity, defined by body mass index (BMI) ≥ 30 Kg/m2, and 83 age- (35.5 ± 4.1 vs. 34.1 ± 5.1 yrs, p = 0.11), ethnicity- (caucasian 65.2 vs. 66.3%, p = 0.90) and gestational week-matched (36.3 ± 1.7 vs. 36.5 ± 1.5 wks, p = 0.49) pregnant women without obesity (BMI < 30 Kg/m2) were examined in the first trimester (12–14 weeks), third trimester (36–38 weeks) and 6–10 weeks postpartum. All women underwent obstetric visit, blood tests and transthoracic echocardiography implemented with two-dimensional speckle tracking echocardiography analysis of biventricular and biatrial myocardial deformation indices at the three time points. Outcome was persistent subclinical myocardial dysfunction, defined as an absolute value of left ventricular global longitudinal strain (LV-GLS) less negative than − 20%, in postpartum.
Results
Despite normal biventricular systolic function, all myocardial strain indices were significantly lower in pregnant women with obesity than controls. At 8.2 ± 2.2 weeks postpartum, LV-GLS remained less negative than − 20% in 86.9% of women with obesity in pregnancy. Maternal age (OR 1.68, 95%CI 1.14–2.48), third trimester BMI (OR 7.17, 95%CI 1.77–28.9) and third trimester neutrophil-to-lymphocyte ratio (NLR) (OR 1.75, 95%CI 1.22–2.51) were independently associated with outcome. Maternal age ≥ 35 years, BMI ≥ 30 Kg/m2 and NLR ≥ 5.5 were the optimal cut-off values for predicting persistent subclinical myocardial dysfunction in postpartum.
Conclusions
Pregnant women with obesity, age ≥ 35 yrs and low chronic inflammation have significantly increased risk of persistent subclinical myocardial dysfunction over postpartum.
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Abbreviations
- 2D:
-
two-dimensional
- BMI:
-
body mass index
- BSA:
-
body surface area
- CI:
-
confidence interval
- CO:
-
cardiac output
- DBP:
-
diastolic blood pressure
- EAT:
-
epicardial adipose tissue
- GCS:
-
global circumferential strain
- GLS:
-
global longitudinal strain
- GRS:
-
global radial strain
- GSA+:
-
positive global atrial strain
- GSA-:
-
negative global atrial strain
- ICC:
-
intraclass correlation coefficient
- LA:
-
left atrial
- LV:
-
left ventricular
- LVEF:
-
left ventricular ejection fraction
- LVMi:
-
left ventricular mass index
- LVOT:
-
left ventricular outflow tract
- MAP:
-
mean arterial pressure
- MAPSE:
-
mitral annular plane systolic excursion
- NLR:
-
neutrophil-to-lymphocyte ratio
- RA:
-
right atrial
- RDW:
-
red cell distribution width
- ROC:
-
receiver operating characteristics
- RV:
-
right ventricular
- RWT:
-
relative wall thickness
- SBP:
-
systolic blood pressure
- SPAP:
-
systolic pulmonary artery pressure
- STE:
-
speckle tracking echocardiography
- SV:
-
stroke volume
- TAPSE:
-
tricuspid annular plane systolic excursion
- TGSA:
-
total global atrial strain
- TPR:
-
total peripheral resistance
- TTE:
-
transthoracic echocardiography
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Funding
This work has been supported by Italian Ministry of Health Ricerca Corrente - IRCCS MultiMedica.
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Andrea Sonaglioni: Conceptualization; Data curation; Investigation; Methodology; Software; Visualization; Writing—original draft. Gian Luigi Nicolosi: Conceptualization; Data curation; Methodology; Writing—review & editing. Stefano Bianchi: Supervision; Validation; Writing—review & editing. Michele Lombardo: Supervision; Validation; Writing—review & editing.
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We wish to confirm that there are no conflicts of interest associated with this publication. Andrea Sonaglioni declares that he has no conflict of interest. Gian Luigi Nicolosi declares that he has no conflict of interest. Stefano Bianchi declares that he has no conflict of interest. Michele Lombardo declares that he has no conflict of interest.
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Sonaglioni, A., Nicolosi, G.L., Bianchi, S. et al. Obesity in pregnancy is a predictor of persistent subclinical myocardial dysfunction over postpartum period. Int J Cardiovasc Imaging 38, 1895–1907 (2022). https://doi.org/10.1007/s10554-022-02579-y
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DOI: https://doi.org/10.1007/s10554-022-02579-y