Why the study?
Does normal pregnancy alter echocardiographic haemodynamic parameters compared to non-pregnant women?
Does normal pregnancy alter echocardiographic haemodynamic parameters compared to non-pregnant women?
Normal pregnancy is associated with significant increases in heart rate, cardiac output, and systolic function parameters, alongside transient decreases in blood pressure during the first two trimesters.
May inform trimester-specific echo reference ranges; leaves open prospective validation before guiding management.
A comparative study was done on haemodynamic changes between 60 healthy pregnant women each of whom carried a single foetus and 20 non pregnant healthy women by using echocardiography.Heart rate, blood pressure, cardiac output, ejection fraction, fractional shortening, aortic flow, and pulmonary flow were taken as parameters and compared.The increase of heart rate in pregnant women is highly significant when compared to that of non-pregnant women.The systolic blood pressure and diastolic blood pressure decreased in the 1 st &2 nd trimesters of pregnancy and the systolic blood pressure returned to non pregnant levels in the 3 rd trimester.The cardiac output, ejection fraction, fractional shortening, aortic flow and pulmonary flows were increased in the 1 st , 2 nd and 3 rd trimesters of pregnancy when compared to non pregnant women.
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R et al. (2013) studied this question.
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