Why the study?
Differences between right and left ventricular size during fetal life have been rarely studied in India.
Fetal right and left ventricular thickness show linear correlation and similar dimensions throughout gestation from 21 to 40 weeks.
Answers are grounded in this paper and cite their sources.
Normative fetal ventricular data may aid echocardiography; hypothesis-generating and requires prospective validation before clinical use.
Introduction: The difference in the size of the two ventricles in adult is well known due to the difference in the resistance of systemic and pulmonary circulation. However, the difference between the two during fetal life is rarely studied in India. Material and methods: In the present study, the normal fetal hearts were selected from 21 to 40 weeks of gestation. The measurement of the right and left ventricular thickness was done using a graduated scale. They were compared with each other and were also compared with body weight, crown-rump length, and head circumference. Total heart weight in these cases were compared with body weight, crown-rump length, head circumference, and gestation age. Results: The right ventricle showed similar or slightly more dimension than the left ventricle from 22nd week up to 30th week gestation, while there was similar thickness of both the ventricles from 32nd week and beyond. Conclusion: Linear correlation was obtained between the right ventricular and the left ventricular thickness without much difference in their thickness throughout the gestation.
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Rai et al. (2019) studied this question.
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