Relative uteroplacental insufficiency of labor

Abstract Relative uteroplacental insufficiency of labor (RUPI‐L) is a clinical condition that refers to alterations in the fetal oxygen “demand–supply” equation caused by the onset of regular uterine activity. The term RUPI‐L indicates a condition of “relative” uteroplacental insufficiency which is...

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Main Authors: Tullio Ghi, Stefania Fieni, Ruben Ramirez Zegarra, Susana Pereira, Andrea Dall'Asta, Edwin Chandraharan
Format: Article
Language:English
Published: Wiley 2024-10-01
Series:Acta Obstetricia et Gynecologica Scandinavica
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Online Access:https://doi.org/10.1111/aogs.14937
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author Tullio Ghi
Stefania Fieni
Ruben Ramirez Zegarra
Susana Pereira
Andrea Dall'Asta
Edwin Chandraharan
author_facet Tullio Ghi
Stefania Fieni
Ruben Ramirez Zegarra
Susana Pereira
Andrea Dall'Asta
Edwin Chandraharan
author_sort Tullio Ghi
collection DOAJ
description Abstract Relative uteroplacental insufficiency of labor (RUPI‐L) is a clinical condition that refers to alterations in the fetal oxygen “demand–supply” equation caused by the onset of regular uterine activity. The term RUPI‐L indicates a condition of “relative” uteroplacental insufficiency which is relative to a specific stressful circumstance, such as the onset of regular uterine activity. RUPI‐L may be more prevalent in fetuses in which the ratio between the fetal oxygen supply and demand is already slightly reduced, such as in cases of subclinical placental insufficiency, post‐term pregnancies, gestational diabetes, and other similar conditions. Prior to the onset of regular uterine activity, fetuses with a RUPI‐L may present with normal features on the cardiotocography. However, with the onset of uterine contractions, these fetuses start to manifest abnormal fetal heart rate patterns which reflect the attempt to maintain adequate perfusion to essential central organs during episodes of transient reduction in oxygenation. If labor is allowed to continue without an appropriate intervention, progressively more frequent, and stronger uterine contractions may result in a rapid deterioration of the fetal oxygenation leading to hypoxia and acidosis. In this Commentary, we introduce the term relative uteroplacental insufficiency of labor and highlight the pathophysiology, as well as the common features observed in the fetal heart rate tracing and clinical implications.
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spelling doaj-art-d89a1d1b107247ad8aaff09ad583f83f2025-08-20T03:22:18ZengWileyActa Obstetricia et Gynecologica Scandinavica0001-63491600-04122024-10-01103101910191810.1111/aogs.14937Relative uteroplacental insufficiency of laborTullio Ghi0Stefania Fieni1Ruben Ramirez Zegarra2Susana Pereira3Andrea Dall'Asta4Edwin Chandraharan5Department of Medicine and Surgery, Obstetrics and Gynecology Unit University of Parma Parma ItalyDepartment of Medicine and Surgery, Obstetrics and Gynecology Unit University of Parma Parma ItalyDepartment of Medicine and Surgery, Obstetrics and Gynecology Unit University of Parma Parma ItalyFetal Medicine Unit, The Royal London Hospital Barts Health NHS Trust London UKDepartment of Medicine and Surgery, Obstetrics and Gynecology Unit University of Parma Parma ItalyGlobal Academy of Medical Education and Training Ltd London UKAbstract Relative uteroplacental insufficiency of labor (RUPI‐L) is a clinical condition that refers to alterations in the fetal oxygen “demand–supply” equation caused by the onset of regular uterine activity. The term RUPI‐L indicates a condition of “relative” uteroplacental insufficiency which is relative to a specific stressful circumstance, such as the onset of regular uterine activity. RUPI‐L may be more prevalent in fetuses in which the ratio between the fetal oxygen supply and demand is already slightly reduced, such as in cases of subclinical placental insufficiency, post‐term pregnancies, gestational diabetes, and other similar conditions. Prior to the onset of regular uterine activity, fetuses with a RUPI‐L may present with normal features on the cardiotocography. However, with the onset of uterine contractions, these fetuses start to manifest abnormal fetal heart rate patterns which reflect the attempt to maintain adequate perfusion to essential central organs during episodes of transient reduction in oxygenation. If labor is allowed to continue without an appropriate intervention, progressively more frequent, and stronger uterine contractions may result in a rapid deterioration of the fetal oxygenation leading to hypoxia and acidosis. In this Commentary, we introduce the term relative uteroplacental insufficiency of labor and highlight the pathophysiology, as well as the common features observed in the fetal heart rate tracing and clinical implications.https://doi.org/10.1111/aogs.14937active laborbaseline fetal heart ratecardiotocographycatecholamine responsedecelerationsfetal growth restriction
spellingShingle Tullio Ghi
Stefania Fieni
Ruben Ramirez Zegarra
Susana Pereira
Andrea Dall'Asta
Edwin Chandraharan
Relative uteroplacental insufficiency of labor
Acta Obstetricia et Gynecologica Scandinavica
active labor
baseline fetal heart rate
cardiotocography
catecholamine response
decelerations
fetal growth restriction
title Relative uteroplacental insufficiency of labor
title_full Relative uteroplacental insufficiency of labor
title_fullStr Relative uteroplacental insufficiency of labor
title_full_unstemmed Relative uteroplacental insufficiency of labor
title_short Relative uteroplacental insufficiency of labor
title_sort relative uteroplacental insufficiency of labor
topic active labor
baseline fetal heart rate
cardiotocography
catecholamine response
decelerations
fetal growth restriction
url https://doi.org/10.1111/aogs.14937
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AT rubenramirezzegarra relativeuteroplacentalinsufficiencyoflabor
AT susanapereira relativeuteroplacentalinsufficiencyoflabor
AT andreadallasta relativeuteroplacentalinsufficiencyoflabor
AT edwinchandraharan relativeuteroplacentalinsufficiencyoflabor