Possible protective role of the absence of Hyrtl’s anastomosis in monochorionic pregnancy: exploratory case series
ObjectiveHyrtl’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...
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Frontiers Media S.A.
2025-05-01
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| Series: | Frontiers in Medicine |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmed.2025.1575068/full |
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| author | Ziling Liu Jie Ruan |
| author_facet | Ziling Liu Jie Ruan |
| author_sort | Ziling Liu |
| collection | DOAJ |
| description | ObjectiveHyrtl’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.MethodsIn the present study, we perfused over 70 cases of MC placentas and identified three additional cases exhibiting the same characteristics.ResultsThe 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.ConclusionThe absence of Hyrtl’s anastomosis appears to have a protective effect in MC placentas, contrary to its effect in singleton placentas. |
| format | Article |
| id | doaj-art-3c34f9bd79dc4d9094d82fa14ed7cb0b |
| institution | DOAJ |
| issn | 2296-858X |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Medicine |
| spelling | doaj-art-3c34f9bd79dc4d9094d82fa14ed7cb0b2025-08-20T03:12:38ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2025-05-011210.3389/fmed.2025.15750681575068Possible protective role of the absence of Hyrtl’s anastomosis in monochorionic pregnancy: exploratory case seriesZiling LiuJie RuanObjectiveHyrtl’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.MethodsIn the present study, we perfused over 70 cases of MC placentas and identified three additional cases exhibiting the same characteristics.ResultsThe 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.ConclusionThe absence of Hyrtl’s anastomosis appears to have a protective effect in MC placentas, contrary to its effect in singleton placentas.https://www.frontiersin.org/articles/10.3389/fmed.2025.1575068/fullHyrtl’s anastomosismonochorionic pregnancyplacental territory discordanceselective fetal growth restrictionpump fetus |
| spellingShingle | Ziling Liu Jie Ruan Possible protective role of the absence of Hyrtl’s anastomosis in monochorionic pregnancy: exploratory case series Frontiers in Medicine Hyrtl’s anastomosis monochorionic pregnancy placental territory discordance selective fetal growth restriction pump fetus |
| title | Possible protective role of the absence of Hyrtl’s anastomosis in monochorionic pregnancy: exploratory case series |
| title_full | Possible protective role of the absence of Hyrtl’s anastomosis in monochorionic pregnancy: exploratory case series |
| title_fullStr | Possible protective role of the absence of Hyrtl’s anastomosis in monochorionic pregnancy: exploratory case series |
| title_full_unstemmed | Possible protective role of the absence of Hyrtl’s anastomosis in monochorionic pregnancy: exploratory case series |
| title_short | Possible protective role of the absence of Hyrtl’s anastomosis in monochorionic pregnancy: exploratory case series |
| title_sort | possible protective role of the absence of hyrtl s anastomosis in monochorionic pregnancy exploratory case series |
| topic | Hyrtl’s anastomosis monochorionic pregnancy placental territory discordance selective fetal growth restriction pump fetus |
| url | https://www.frontiersin.org/articles/10.3389/fmed.2025.1575068/full |
| work_keys_str_mv | AT zilingliu possibleprotectiveroleoftheabsenceofhyrtlsanastomosisinmonochorionicpregnancyexploratorycaseseries AT jieruan possibleprotectiveroleoftheabsenceofhyrtlsanastomosisinmonochorionicpregnancyexploratorycaseseries |