Key result
Third trimester pregnancy is linked to physiological ECG changes including ~5 bpm higher heart rates.
Why the study?
Does third trimester pregnancy alter electrocardiographic parameters compared to non-pregnant women?
Cross-Sectional (n=120)
No
Does third trimester pregnancy alter electrocardiographic parameters compared to non-pregnant women?
Absolute Event Rate: 82.08% vs 77.27%
p-value: p=0.002
Significant physiological electrocardiographic changes occur during the third trimester of pregnancy, necessitating cautious interpretation of ECGs in this population.
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May warrant adjusted ECG norms in late pregnancy; cross-sectional data leaves open prospective validation and outcome relevance.
Chaudhary et al. (2016) conducted a cross-sectional in Pregnancy (n=120). Third trimester pregnancy vs. Non-pregnant women was evaluated on Mean heart rate (/min) (p=0.002). Third trimester pregnancy was associated with significant physiological electrocardiographic changes compared to non-pregnant controls, including an increased mean heart rate (82.08 vs 77.27 bpm, p=0.002) and a shortened PR interval (0.12 vs 0.14 sec, p<0.001).