Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic Circulation
Duct-dependent systemic circulation is accompanied by a right-to-left ductal shunt, at least during systole. Although observations of paradoxical continuous left-to-right shunts in duct-dependent systemic circulation have been reported, the mechanism remains unclear. We report a continuous left-to-r...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Thieme Medical Publishers, Inc.
2022-10-01
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| Series: | American Journal of Perinatology Reports |
| Subjects: | |
| Online Access: | http://www.thieme-connect.de/DOI/DOI?10.1055/a-1947-7501 |
| _version_ | 1797975857173626880 |
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| author | Naoyuki Miyahara Mohamed Hamed Hussein Ryou Nishiguchi Masayo Kanai Akio Ishiguro Koichi Toda Takuro Kojima Shigeki Yoshiba Naokata Sumitomo Satoshi Masutani |
| author_facet | Naoyuki Miyahara Mohamed Hamed Hussein Ryou Nishiguchi Masayo Kanai Akio Ishiguro Koichi Toda Takuro Kojima Shigeki Yoshiba Naokata Sumitomo Satoshi Masutani |
| author_sort | Naoyuki Miyahara |
| collection | DOAJ |
| description | Duct-dependent systemic circulation is accompanied by a right-to-left ductal shunt, at least during systole. Although observations of paradoxical continuous left-to-right shunts in duct-dependent systemic circulation have been reported, the mechanism remains unclear. We report a continuous left-to-right ductal shunt throughout the cardiac cycle during the initial recovery phase from circulatory collapse and right ventricular (RV) dysfunction due to ductal closure in an infant with hypoplastic left heart and severe aortic coarctation. Further recovery improved his RV function and changed the ductal flow from continuous left-to-right to bidirectional, which is usually seen in duct-dependent systemic circulation. Marked RV dysfunction may contribute to the continuous left-to-right ductal shunt. A continuous left-to-right ductal shunt should not be used to rule out duct-dependent systemic circulation. |
| first_indexed | 2024-04-11T04:42:07Z |
| format | Article |
| id | doaj.art-3784f0443564401d95703e297b4d42d0 |
| institution | Directory Open Access Journal |
| issn | 2157-6998 2157-7005 |
| language | English |
| last_indexed | 2024-04-11T04:42:07Z |
| publishDate | 2022-10-01 |
| publisher | Thieme Medical Publishers, Inc. |
| record_format | Article |
| series | American Journal of Perinatology Reports |
| spelling | doaj.art-3784f0443564401d95703e297b4d42d02022-12-27T23:30:36ZengThieme Medical Publishers, Inc.American Journal of Perinatology Reports2157-69982157-70052022-10-011204e148e15210.1055/a-1947-7501Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic CirculationNaoyuki Miyahara0Mohamed Hamed Hussein1Ryou Nishiguchi2Masayo Kanai3Akio Ishiguro4Koichi Toda5Takuro Kojima6Shigeki Yoshiba7Naokata Sumitomo8Satoshi Masutani9Department of Pediatrics, Saitama Medical Center, Saitama Medical University, Saitama, JapanDepartment of Pediatrics, Saitama Medical Center, Saitama Medical University, Saitama, JapanDepartment of Pediatrics, Saitama Medical Center, Saitama Medical University, Saitama, JapanDepartment of Pediatrics, Saitama Medical Center, Saitama Medical University, Saitama, JapanDepartment of Pediatrics, Saitama Medical Center, Saitama Medical University, Saitama, JapanDepartment of Pediatric Cardiology, Saitama Medical University International Medical Center, Saitama, JapanDepartment of Pediatric Cardiology, Saitama Medical University International Medical Center, Saitama, JapanDepartment of Pediatric Cardiology, Saitama Medical University International Medical Center, Saitama, JapanDepartment of Pediatric Cardiology, Saitama Medical University International Medical Center, Saitama, JapanDepartment of Pediatrics, Saitama Medical Center, Saitama Medical University, Saitama, JapanDuct-dependent systemic circulation is accompanied by a right-to-left ductal shunt, at least during systole. Although observations of paradoxical continuous left-to-right shunts in duct-dependent systemic circulation have been reported, the mechanism remains unclear. We report a continuous left-to-right ductal shunt throughout the cardiac cycle during the initial recovery phase from circulatory collapse and right ventricular (RV) dysfunction due to ductal closure in an infant with hypoplastic left heart and severe aortic coarctation. Further recovery improved his RV function and changed the ductal flow from continuous left-to-right to bidirectional, which is usually seen in duct-dependent systemic circulation. Marked RV dysfunction may contribute to the continuous left-to-right ductal shunt. A continuous left-to-right ductal shunt should not be used to rule out duct-dependent systemic circulation.http://www.thieme-connect.de/DOI/DOI?10.1055/a-1947-7501coarctationductus arteriosusprostaglandin e1 hypoplastic left heart |
| spellingShingle | Naoyuki Miyahara Mohamed Hamed Hussein Ryou Nishiguchi Masayo Kanai Akio Ishiguro Koichi Toda Takuro Kojima Shigeki Yoshiba Naokata Sumitomo Satoshi Masutani Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic Circulation American Journal of Perinatology Reports coarctation ductus arteriosus prostaglandin e1 hypoplastic left heart |
| title | Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic Circulation |
| title_full | Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic Circulation |
| title_fullStr | Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic Circulation |
| title_full_unstemmed | Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic Circulation |
| title_short | Paradoxical Continuous Left-to-Right Ductal Shunt during Circulatory Collapse due to Ductal Closure in an Infant with Duct-Dependent Systemic Circulation |
| title_sort | paradoxical continuous left to right ductal shunt during circulatory collapse due to ductal closure in an infant with duct dependent systemic circulation |
| topic | coarctation ductus arteriosus prostaglandin e1 hypoplastic left heart |
| url | http://www.thieme-connect.de/DOI/DOI?10.1055/a-1947-7501 |
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