Key result
Normal pregnancy in the third trimester was associated with physiological ECG changes, including a left axis deviation of a mean of 15° compared with the postpartum period (P<0.05).
Why the study?
The study was conducted to evaluate ECG findings in normal pregnant women during their third trimester and compare them with postpartum ECG findings.
What are the physiological ECG changes in normal pregnant women during their third trimester compared to the postpartum period?
Observational (n=60)
What are the physiological ECG changes in normal pregnant women during their third trimester compared to the postpartum period?
Normal pregnancy is associated with physiological ECG changes such as sinus tachycardia and left axis deviation, which must be carefully interpreted to avoid misdiagnosis.
Answers are grounded in this paper and cite their sources.
Supports cautious ECG interpretation in late pregnancy to avoid misdiagnosis; extends prior observations but leaves open prospective validation.
Aim: The primary objective was to study the electrocardiogram (ECG) findings of normal pregnant women in their third trimester. The secondary objective was to compare the ECG findings of pregnant women in their third trimester with the ECG findings during the postpartum period. Materials and Methods: An Electrocardiography recording was done for 60 pregnant women during their third trimester and on postpartum day 7. Results: The common ECG findings during pregnancy found in our study were sinus tachycardia, and conspicuous Q wave (LV dilation) and an inverted P wave (nonspecific) in lead II. We also found left axis deviation of a mean of 15° (QRS axis) when compared with the QRS axis of the same patient postpartum (P < 0.05). Conclusion: There are physiological changes in an ECG during pregnancy. A routine antenatal ECG is safe, feasible, economic, and possibly advantageous to lower maternal mortality and morbidity. The ECG findings must be interpreted carefully during pregnancy.
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Karsini et al. (2021) conducted an observational in Normal pregnancy (n=60). Pregnancy (third trimester) vs. Postpartum day 7 was evaluated on Electrocardiogram (ECG) findings including QRS axis (mean difference of 15°, p=<0.05). Normal pregnancy in the third trimester was associated with physiological ECG changes, including a left axis deviation of a mean of 15° compared with the postpartum period (P<0.05).
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