ArticleFrontiers in medicine2025
Possible protective role of the absence of Hyrtl's anastomosis in monochorionic pregnancy: exploratory case series.
Article in Frontiers in medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Anatomical and Functional Insights Into Hyrtl's Anastomosis: Implications for Placental and Fetal Vascular Dynamics.Clinical anatomy (New York, N.Y.) · 2026Review
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objective: Hyrtl's anastomosis, an intra-arterial shunt, serves a protective function in singleton placentas. Our team previously documented a case of a monochorionic (MC) twin placenta lacking Hyrtl's anastomosis. However, research on the impact of absent Hyrtl's anastomosis in twin placentas remains limited. Methods: In the present study, we perfused over 70 cases of MC placentas and identified three additional cases exhibiting the same characteristics. Results: The absence of Hyrtl's anastomosis was found to be present in two cases with severe placental territory discordance and one case of a MC triamniotic pregnancy with reversed arterial perfusion sequence, all of which resulted in uneventful pregnancy courses. Conclusion: The absence of Hyrtl's anastomosis appears to have a protective effect in MC placentas, contrary to its effect in singleton placentas.
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