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Dejene T, Kebede A, Fetensa G, Bekele D, Mesfin T, Hussen K. Twin Reversed Arterial Perfusion Sequence Diagnosed Late in the Third Trimester: A Case Report and Literature Review. Clin Case Rep 2025; 13:e70052. [PMID: 39822884 PMCID: PMC11736710 DOI: 10.1002/ccr3.70052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2024] [Revised: 11/09/2024] [Accepted: 12/16/2024] [Indexed: 01/19/2025] Open
Abstract
The twin reversed arterial perfusion (TRAP) sequence is a rare complication associated with monochorionic twins. It is characterized by blood flow from the umbilical artery of the normal (pump) twin to the umbilical artery of the abnormal (acardiac) twin via artery-to-artery anastomosis. This condition is associated with 100% mortality in the acardiac twin and a high rate of perinatal morbidity and mortality in the pump twin, primarily due to intrauterine hypoxic injury, heart failure, and prematurity. Following delivery, the surviving pump twin may experience adverse neurodevelopmental outcomes and heart failure, necessitating ongoing follow-up care. The goal of managing pregnancies complicated by the TRAP sequence is to deliver a healthy, near-term pump twin through early detection, timely intervention, and continuous follow-up. However, in low-resource settings, such as the case presented here, the condition may progress undiagnosed into the third trimester due to a lack of experienced physicians and/or obstetric ultrasound scans. This case report serves as an entry point for a comprehensive review of the literature on management options for the TRAP sequence, specifically focusing on factors to consider when managing patients conservatively in resource-limited environments or in cases that are referred or diagnosed late.
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Affiliation(s)
- Tafese Dejene
- College of Medicine and Health SciencesDire Dawa UniversityDire DawaEthiopia
| | | | - Getahun Fetensa
- Department of Health Behavior and Society, Faculty of Public Health, Institute of HealthJimma UniversityJimmaEthiopia
| | - Delayehu Bekele
- Department of Gynecology and ObstetricsSaint Paul's Hospital Millennium Medical CollegeAddis AbabaEthiopia
| | - Telila Mesfin
- School of MedicineGoba General Hospital, Madda Walabu UniversityGobaOromiaEthiopia
| | - Kelil Hussen
- Jimma Medical Center, Department of Gynecology and ObstetricsJimma UniversityJimmaEthiopia
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Chan KS, Chuang YC, Lin TY, Shaw SW. A Taiwan's experience: A case report and review of literature of successful early intrauterine treatment with radiofrequency ablation in twin reversed arterial perfusion (TRAP) sequence. J Formos Med Assoc 2021; 120:1394-1399. [PMID: 33583701 DOI: 10.1016/j.jfma.2021.01.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 01/20/2021] [Accepted: 01/24/2021] [Indexed: 11/30/2022] Open
Abstract
Acardiac twin or twin reversed arterial perfusion (TRAP) sequence is a rare medical complication of Monozygotic twins. Taiwanese Obstetricians usually treat TRAP sequence conservatively. Occasionally, repeated amnio-reduction is performed to decompress the polyhydramnios caused by the TRAP sequence, even though there was no correction of the pathophysiologic mechanism. Radiofrequency ablation is a minimally invasive, percutaneous technique that can effectively obliterate blood supply to an acardiac twin to preserve and protect the pump twin. This recent technique has never been used before for the treatment of the TRAP sequence in Taiwan. This article reported the first-hand experience of acardiac twin management with RFA in Taipei Chang Gung Memorial Hospital.
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Affiliation(s)
- Kok-Seong Chan
- Malaysian Ministry of Health, Malaysia; Department of Obstetrics and Gynecology, Taipei Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Ya-Chun Chuang
- Department of Obstetrics and Gynecology, Taipei Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Tzu-Yi Lin
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Steven W Shaw
- Department of Obstetrics and Gynecology, Taipei Chang Gung Memorial Hospital, Taipei, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan; Prenatal Cell and Gene Therapy Group, Institute for Women's Health University College London, London, United Kingdom.
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‘TRAP-ped with an Acardius’: Case Series of Twin Reversed Arterial Perfusion (TRAP) Sequence and Review of Literature. JOURNAL OF FETAL MEDICINE 2021. [DOI: 10.1007/s40556-020-00286-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
AbstractTwin reversed arterial perfusion (TRAP) sequence is a rare but severe condition that affects monochorionic (MC) multifetal pregnancies. In twin pregnancies, it is characterized by a normally developed twin and another twin with missing heart function (acardiac twin or TRAP twin). A variety of risks and complications may affect the normal twin. Management of such pregnancies can be either expectant or interventional. We report four cases of TRAP sequence treated in our institutions and supply an overview on currently existing literature. This case series demonstrates the heterogeneity in manifestations and clinical course of patients affected by this condition. Furthermore, it includes an acardius amorphous of considerable size delivered at 35.6 weeks of gestation.
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Sharma D, Tsibizova VI. Current perspective and scope of fetal therapy: part 1. J Matern Fetal Neonatal Med 2020; 35:3783-3811. [PMID: 33135508 DOI: 10.1080/14767058.2020.1839880] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Fetal therapy term has been described for any therapeutic intervention either invasive or noninvasive for the purpose of correcting or treating any fetal malformation or condition. Fetal therapy is a rapidly evolving specialty and has gained pace in last two decades and now fetal intervention is being tried in many malformations with rate of success varying with the type of different fetal conditions. The advances in imaging techniques have allowed fetal medicine persons to make earlier and accurate diagnosis of numerous fetal anomalies. Still many fetal anomalies are managed postnatally because the fetal outcomes have not changed significantly with the use of fetal therapy and this approach avoids unnecessary maternal risk secondary to inutero intervention. The short-term maternal risk associated with fetal surgery includes preterm labor, premature rupture of membranes, uterine wall bleeding, chorioamniotic separation, placental abruption, chorioamnionitis, and anesthesia risk. Whereas, maternal long-term complications include risk of infertility, uterine rupture, and need for cesarean section in future pregnancies. The decision for invasive fetal therapy should be taken after discussion with parents about the various aspects like postnatal fetal outcome without fetal intervention, possible outcome if the fetal intervention is done, available postnatal intervention for the fetal condition, and possible short-term and long-term maternal complications. The center where fetal intervention is done should have facility of multi-disciplinary team to manage both maternal and fetal complications. The major issues in the development of fetal surgery include selection of patient for intervention, crafting effective fetal surgical skills, requirement of regular fetal and uterine monitoring, effective tocolysis, and minimizing fetal and maternal fetal risks. This review will cover the surgical or invasive aspect of fetal therapy with available evidence and will highlight the progress made in the management of fetal malformations in last two decades.
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Affiliation(s)
- Deepak Sharma
- Department of Neonatology, National Institute of Medical Science, Jaipur, India
| | - Valentina I Tsibizova
- Almazov National Medical Research Centre, Health Ministry of Russian Federation, Saint Petersburg, Russia
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Wu WJ, Yeh LT, Ma GC, Chang SP, Lee DJ, Chen M. Integration of imaging and molecular approaches in selective fetal reduction in twin pregnancies with one carrying a pathogenic genomic aberration. J Formos Med Assoc 2019; 119:12-17. [PMID: 30709693 DOI: 10.1016/j.jfma.2019.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 12/27/2018] [Accepted: 01/14/2019] [Indexed: 10/27/2022] Open
Abstract
BACKGROUND/PURPOSE With the evolution of assisted fertility and prenatal diagnostic technology, the prevalence of multi-fetal pregnancy increased, followed by the demand for prenatal intervention if genomic aberration was detected. How to distinguish the affected foetus from the normal co-twin before selective fetal reduction is therefore challenging. OBJECTIVES We retrospectively reviewed the cases of dichorionic twins at our centre during 2004-2018, where selective fetal reduction was requested because one foetus carried a pathogenic genomic aberration. Five cases were enrolled, including three foetuses with trisomy 21, one foetus with microduplication and one foetus with microdeletion disorders. METHOD We labelled the affected foetus by prenatal ultrasound and rapid molecular tools. For the twins without discriminating sonographic features (e.g., the same gender and no distinct placentae), interphase fluorescence in situ hybridization, rapid microarray and short tandem repeat markers were applied to identify the affected foetus. RESULTS Selective fetal reduction was allocated accurately for all individuals. Two cases delivered at term, while two delivered preterm, and one developed fetal loss of the co-twin. CONCLUSION We proposed a working scheme of integrating imaging and molecular techniques to correctly identify the affected co-twin before selective fetal reduction to ensure the accuracy of the identification.
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Affiliation(s)
- W J Wu
- Department of Genomic Medicine and Center for Medical Genetics, Changhua Christian Hospital and Department of Genomic Science and Technology, Changhua Christian Hospital Healthcare System, Changhua, Taiwan; Department of Obstetrics and Gynecology, Changhua Christian Hospital, Changhua, Taiwan
| | - L T Yeh
- Department of Anesthesiology, Changhua Christian Hospital, Changhua, Taiwan
| | - G C Ma
- Department of Genomic Medicine and Center for Medical Genetics, Changhua Christian Hospital and Department of Genomic Science and Technology, Changhua Christian Hospital Healthcare System, Changhua, Taiwan; Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan; Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - S P Chang
- Department of Genomic Medicine and Center for Medical Genetics, Changhua Christian Hospital and Department of Genomic Science and Technology, Changhua Christian Hospital Healthcare System, Changhua, Taiwan
| | - D J Lee
- Department of Genomic Medicine and Center for Medical Genetics, Changhua Christian Hospital and Department of Genomic Science and Technology, Changhua Christian Hospital Healthcare System, Changhua, Taiwan
| | - M Chen
- Department of Genomic Medicine and Center for Medical Genetics, Changhua Christian Hospital and Department of Genomic Science and Technology, Changhua Christian Hospital Healthcare System, Changhua, Taiwan; Department of Obstetrics and Gynecology, Changhua Christian Hospital, Changhua, Taiwan; Department of Medical Research, Changhua Christian Hospital, Changhua, Taiwan; Department of Molecular Biotechnology, Dayeh University, Changhua, Taiwan.
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Panciatici M, Tosello B, Blanc J, Haumonté JB, D’Ercole C, Gire C. Devenir neurodéveloppemental des nouveau-nés issus de grossesses monochoriales compliquées avec interruption sélective par ablation par radiofréquence. ACTA ACUST UNITED AC 2017; 45:197-201. [DOI: 10.1016/j.gofs.2017.01.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 01/26/2017] [Indexed: 11/17/2022]
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Wagata M, Murakoshi T, Ishii K, Muromoto J, Sasahara J, Murotsuki J. Radiofrequency Ablation with an Internally Cooled Electrode for Twin Reversed Arterial Perfusion Sequence. Fetal Diagn Ther 2016; 40:110-5. [PMID: 26928848 DOI: 10.1159/000442152] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 10/30/2015] [Indexed: 11/19/2022]
Abstract
OBJECTIVE The study aims to evaluate the efficacy of radiofrequency ablation (RFA) with an internally cooled electrode for twin reversed arterial perfusion (TRAP) sequence. METHODS From April 2008 through December 2014, we retrospectively reviewed all patients who underwent RFA with an internally cooled electrode for TRAP sequence at 3 tertiary referral centers in Japan. RESULTS Twenty-five monochorionic diamniotic twin pregnancies underwent RFA with an internally cooled electrode for TRAP sequence at 16-27 weeks of gestation. In all cases, umbilical cord blood flow cessation in the acardiac twin was confirmed by ultrasonography with color Doppler. There were 2 cases of procedure-related complications: 1 case of unintentional septostomy and 1 case of anemia in a pump twin. Fetal demise of the pump twin occurred in 3 (12%) cases. Twenty-two (88%) of 25 pump twins were delivered alive. The median gestational age at delivery was 36 + 3 weeks (range 25 + 2-40 + 5 weeks). There were 14 cases (64%) of premature deliveries before 37 weeks and 5 (23%) before 32 weeks. CONCLUSION RFA with an internally cooled electrode is a feasible and effective procedure for the treatment of TRAP sequence.
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Affiliation(s)
- Maiko Wagata
- Division of Perinatology, Fetal Diagnosis and Therapy, Maternal and Perinatal Care Center, Seirei Hamamatsu General Hospital, Hamamatsu, Japan
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Jayi S, Laadioui M, Laabadi K, Fdili FZ, Bouguern H, Chaara H, Melhouf A. [A rare complication of monochorionic twin pregnancy: Twin Reversed Arterial Perfusion Sequence (TRAP)]. Pan Afr Med J 2015; 20:347. [PMID: 26175836 PMCID: PMC4491451 DOI: 10.11604/pamj.2015.20.347.4197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Accepted: 09/09/2014] [Indexed: 11/28/2022] Open
Abstract
La séquence TRAP est une forme majeure et rare du syndrome transfuseur transfusé, caractérisée par l'absence de développement des structures cardiaques avec un spectre de malformations chez le fœtus transfusé qui n'est jamais viable et d'importantes complications touchant le jumeau transfuseur. Nous rapportons le cas d'une multipare admise avec expulsion en cours d'une présentation de siège, puis l'examen a trouvé une présentation irrégulière. Et à l’échographie une image hétérogène sans aire cardiaque ni organes fœtaux individualisables avec une seule masse placentaire sont visible, évoquant en premier un jumeau acardiaque. La voie basse a été acceptée, mais elle a présenté une hypercinésie évoquant un syndrome de prérupture. La césarienne a permis l'extraction d'une masse acardiaque. A travers ce cas, nous insistons sur l'intérêt du diagnostic prénatal de cette entité dans l'adaptation de la prise en charge, l'amélioration du pronostic du jumeau transfuseur ainsi que l’évitement du retard diagnostic et de ces conséquences.
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Affiliation(s)
- Sofia Jayi
- Service de Gynécologie-Obstétrique 2, CHU Hassan II de Fès, Université Sidi Mohammed Benabdellah, Fes, Maroc
| | - Meriem Laadioui
- Service de Gynécologie-Obstétrique 2, CHU Hassan II de Fès, Université Sidi Mohammed Benabdellah, Fes, Maroc
| | - Kamilia Laabadi
- Service de Gynécologie-Obstétrique 2, CHU Hassan II de Fès, Université Sidi Mohammed Benabdellah, Fes, Maroc
| | - Fatima Zohra Fdili
- Service de Gynécologie-Obstétrique 2, CHU Hassan II de Fès, Université Sidi Mohammed Benabdellah, Fes, Maroc
| | - Hakima Bouguern
- Service de Gynécologie-Obstétrique 2, CHU Hassan II de Fès, Université Sidi Mohammed Benabdellah, Fes, Maroc
| | - Hikmat Chaara
- Service de Gynécologie-Obstétrique 2, CHU Hassan II de Fès, Université Sidi Mohammed Benabdellah, Fes, Maroc
| | - Aabdelilah Melhouf
- Service de Gynécologie-Obstétrique 2, CHU Hassan II de Fès, Université Sidi Mohammed Benabdellah, Fes, Maroc
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Use of electrocautery for coagulation and wound complications in Caesarean sections. ScientificWorldJournal 2014; 2014:602375. [PMID: 25143985 PMCID: PMC4131101 DOI: 10.1155/2014/602375] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Accepted: 07/04/2014] [Indexed: 12/05/2022] Open
Abstract
Objective. To evaluate the safety of electrocautery for coagulation during Caesarean sections. Study Design. A randomized, controlled, clinical pilot study was performed at a university maternity hospital. After admission for delivery and decision to perform a C-section, volunteers were randomized to either the intervention group (use of electrocautery for coagulation) or nonintervention group. The women were examined at the time of postpartum discharge (day 3), at days 7 to 10, and again at days 30 to 40 for signs of infection, hematoma, seroma, or dehiscence. Data were analyzed using an intention-to-treat analysis, and risk ratios were calculated. Results. No significant differences were found between the two groups. Only 2.8% of patients in the intervention group developed surgical wound complications during hospitalization. However, 7 to 10 days following discharge, these rates reached 23.0% and 15.4% in the intervention and nonintervention groups, respectively (RR = 1.50, 95% CI = 0.84–2.60). Conclusion. Further studies should confirm whether the use of electrocautery for coagulation does not increase the risk of surgical wound complications in patients undergoing Caesarean sections.
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Zhao D, de Villiers SF, Oepkes D, Lopriore E. Monochorionic twin placentas: Injection technique and analysis. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.diapre.2013.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Peeters SH, Devlieger R, Middeldorp JM, DeKoninck P, Deprest J, Lopriore E, Lewi L, Klumper FJ, Kontopoulos E, Quintero R, Oepkes D. Fetal surgery in complicated monoamniotic pregnancies: case series and systematic review of the literature. Prenat Diagn 2014; 34:586-91. [DOI: 10.1002/pd.4353] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Revised: 02/28/2014] [Accepted: 02/28/2014] [Indexed: 11/10/2022]
Affiliation(s)
| | - Roland Devlieger
- Department of Obstetrics and Gynecology; University hospitals of KU Leuven; Leuven Belgium
| | | | - Philip DeKoninck
- Department of Obstetrics and Gynecology; University hospitals of KU Leuven; Leuven Belgium
| | - Jan Deprest
- Department of Obstetrics and Gynecology; University hospitals of KU Leuven; Leuven Belgium
| | - Enrico Lopriore
- Department of Pediatrics, Division of Neonatology; Leiden University Medical Center; Leiden The Netherlands
| | - Liesbeth Lewi
- Department of Obstetrics and Gynecology; University hospitals of KU Leuven; Leuven Belgium
| | - Frans J. Klumper
- Department of Obstetrics; Leiden University Medical Center; Leiden The Netherlands
| | | | - Ruben Quintero
- Jackson Fetal Therapy Institute; Jackson Memorial Hospital; Miami FL USA
| | - Dick Oepkes
- Department of Obstetrics; Leiden University Medical Center; Leiden The Netherlands
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Berg C, Holst D, Mallmann MR, Gottschalk I, Gembruch U, Geipel A. Early vs late intervention in twin reversed arterial perfusion sequence. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2014; 43:60-64. [PMID: 23908075 DOI: 10.1002/uog.12578] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/26/2013] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To compare two different management approaches in prenatally diagnosed twin reversed arterial perfusion (TRAP) sequence. METHODS Retrospective analysis of all cases with TRAP sequence diagnosed in one center over a period of 10 years. Prior to 2010, all cases were managed expectantly until 19 weeks' gestation; thereafter, patients could choose either radiofrequency ablation (RFA) or expectant management (Group A). From 2010 onward all patients were offered interstitial laser at the time of diagnosis (12 weeks at the earliest) or expectant management (Group B). RESULTS Forty cases were included in the study. In Group A, 23 cases were diagnosed at a mean gestational age of 19.9 ± 6.3 weeks. Sixteen patients were managed expectantly (13 survivors, 81%), while six underwent RFA at the time of diagnosis and one later in pregnancy (six survivors, 86%). In Group B, 17 cases were diagnosed at a mean gestational age of 16.4 ± 4.7 weeks. Six patients chose expectant management (five survivors, 83%) and 11 had interstitial laser therapy at the time of diagnosis (eight survivors, 73%). The loss rate of the pump twin was not significantly different between Group A and Group B (three of 23 vs four of 17; P = 0.3). In Group B the rates of preterm premature rupture of membranes (PPROM) and delivery < 34 weeks were significantly lower, and gestational age at birth as well as birth weight were significantly higher than in Group A. CONCLUSION Despite the limitations resulting from its retrospective design, our study on management of TRAP sequence adds some evidence in favor of prophylactic intervention by intrafetal laser from 12 weeks onward.
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Affiliation(s)
- C Berg
- Division of Prenatal Medicine and Gynecologic Sonography, Department of Obstetrics and Gynecology, University of Köln, Köln, Germany; Division of Fetal Surgery, Department of Obstetrics and Prenatal Medicine, University of Bonn, Bonn, Germany
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Delabaere A, Favre N, Velemir L, Bentaoui S, Coste K, Laurichesse-Demas H, Lemery D, Gallot D. [Pediatric outcome after selective feticide for 30 complicated monochorionic twin pregnancies]. ACTA ACUST UNITED AC 2013; 41:85-9. [PMID: 23369677 DOI: 10.1016/j.gyobfe.2012.12.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Accepted: 12/21/2012] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To describe perinatal and pediatric outcome after selective feticide for complicated monochorionic twin pregnancy. PATIENTS AND METHODS We reviewed all consecutive cases of umbilical cord occlusion performed for complicated monochorionic twin pregnancy over a 16-year period. Pediatric follow-up was based on medical records and updated by phone calls to the parents. RESULTS Thirty procedures were performed. Indications were: twin-to-twin transfusion syndrome (TTTS) progressing despite serial amniodrainage (n=12) ; twin reversed arterial perfusion (n=9) ; selective growth restriction (n=5) ; severe discordant structural anomalies (n=4). Mean gestational age at procedure was 21.8±3.1gestational weeks (GW) and 31.8±4.8 GW at birth. Overall survival rate was 87%, i.e. 83%, 100%, 60% and 100% for each indication, respectively. Mean pediatric follow-up was 5years (range: 6months to 15years). Medical charts and parents declared normal development in 88% of surviving children, i.e. 67%, 100%, 100%, and 100% for each indication. Cross-comparison between the four groups revealed that in the TTTS group, gestational age at procedure was more advanced (P=0.01) while delivery was slightly earlier (P=0.1), and pediatric development was poorer (P=0.02). DISCUSSION AND CONCLUSION Pediatric outcome after selective feticide appeared to be poorer for TTTS progressing despite serial amniodrainage than for other indications.
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Affiliation(s)
- A Delabaere
- Pôle GOHR, unité de médecine fœtale, CHU d'Estaing, 1, place Lucie-Aubrac, 63003 Clermont-Ferrand cedex 1, France
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Klatt J, Kuhn A, Baumann M, Raio L. Single umbilical artery in twin pregnancies. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2012; 39:505-509. [PMID: 21728208 DOI: 10.1002/uog.9085] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE Our purpose was to evaluate the antenatal incidence of single umbilical artery (SUA) in twin pregnancies according to chorionicity and to assess its relationship with outcome. METHODS Consecutive twin pregnancies undergoing ultrasound evaluation at our institutions were included. A targeted sonographic evaluation of the umbilical cord and vessels was performed in all cases. Chorionicity was determined according to standard ultrasound criteria. RESULTS A total of 174 twin pregnancies, 100 dichorionic (DC) and 74 monochorionic (MC), were included in the study. An SUA was identified in 17 (9.8%) pregnancies, and in 18 (5.2%) fetuses. No difference was found in the incidence of SUA in DC and MC twins. Among affected pregnancies, all but one DC twin pregnancy were discordant for SUA. Structural and/or chromosomal abnormalities were present in 27.8% of fetuses with SUA. The prevalence of small-for-gestational-age fetuses and of discordant birth weight (> 20% discordance) was higher in the SUA group than in the rest of the population, although these differences were not statistically significant. Twin pairs discordant for SUA had significantly higher weight discordance than those with normal umbilical cords. The sonographic cross-sectional area of the SUA did not appear to show the typical adaptive dilatation usually seen in singleton pregnancies with SUA. CONCLUSIONS The incidence of SUA in twins is higher than in singletons, with no difference between MC and DC twins. Intrapair discordance for SUA in identical twins provides evidence against an exclusively genetic origin of this anomaly. The apparent failure of compensatory dilatation of the umbilical artery in twins with SUA may explain in part the higher risk for fetal growth restriction in these cases.
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Affiliation(s)
- J Klatt
- Department of Obstetrics and Gynecology, Neue Frauenklinik Luzern, Luzern, Switzerland
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Treatment of twin reversed arterial perfusion sequence with alcohol ablation or bipolar cord coagulation. Int J Gynaecol Obstet 2012; 117:257-9. [DOI: 10.1016/j.ijgo.2011.12.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2011] [Revised: 12/22/2011] [Accepted: 02/21/2012] [Indexed: 11/21/2022]
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Gestación gemelar complicada con feto acardio. Presentación de un caso y revisión de la literatura. CLINICA E INVESTIGACION EN GINECOLOGIA Y OBSTETRICIA 2012. [DOI: 10.1016/j.gine.2010.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Scheier M, Molina FS. Outcome of Twin Reversed Arterial Perfusion Sequence following Treatment with Interstitial Laser: A Retrospective Study. Fetal Diagn Ther 2012; 31:35-41. [DOI: 10.1159/000334156] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Accepted: 09/29/2011] [Indexed: 11/19/2022]
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Specific complications of monochorionic twin pregnancies: twin-twin transfusion syndrome and twin reversed arterial perfusion sequence. Semin Fetal Neonatal Med 2010; 15:349-56. [PMID: 20855238 DOI: 10.1016/j.siny.2010.09.003] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Monochorionic twins are subjected to specific complications which originate in either imbalance or abnormality of the single placenta serving two twins. This unequal placental sharing can cause complications including twin-twin transfusion syndrome (TTTS), twin anemia-polycythemia sequence (TAPS), selective intrauterine growth restriction or twin reversed arterial perfusion sequence (TRAP). Monochorionicity also makes the management of these specific complications as well as that of a severe malformation in one twin hazardous since the spontaneous death of one twin exposes the co-twin to a risk of exsanguination into the dead twin and its placenta. The latter is responsible for the death of the co-twin in up to 20% of the cases and in ischemic sequelae in about the same proportions in the survivors. Although the symptoms of all these complications are very different, the keystone of their management comes down to either surgical destruction of the inter-twin anastomoses on the chorionic plate when aiming at dual survival or selective and permanent occlusion of the cord of a severely affected twin aiming at protecting the normal co-twin. This can be best achieved by fetoscopic selective laser coagulation and bipolar forceps cord coagulation respectively.
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Abstract
The risk of fetal loss is multiplied by 4 in monochorionic pregnancies by comparison with dichorionic one. The incidence of selective growth retardation (sIUGR) is between 12.5 to 25%. This variation is explained by the mixture between pure twin-to-twin transfusion syndrome (TTTS) and pregnancies without TTTS but with a pure sIUGR. The ability to diagnose prenatally sIUGR is low; the positive predictive value is only 37% (EL4). The umbilical flow velocity waveforms with absent diastolic flow (Type II) or with diastolic intermittent flow (Type III) is clearly a strong risk factor of mortality of the IUGR and also a risk factor of leucomalacia of the bigger fetus (EL3). The observed incidence of malformations in twins is 4.05% versus 2.38% for singletons (OR=1.7 [IC 95% 1.47-1.97]). Furthermore, the rate of fetal malformations is higher in monochorionic pregnancies by comparison with dichorionic one, 6.33% versus 3.43% (OR=1.8 [IC 95% 1.3-2.5]) (EL3). In the majority of the cases, the malformation is concerning only one fetus. The most frequent malformations are those of the central nervous system by comparison with singletons, those of the urinary tract and the cardiovascular malformations. Monozygotic pregnancies are not necessarily phenotypically and genetically identical. In situation of asymmetrical malformation, it is necessary to propose fetal karyotype of the malformed fetus. In case aneuploidy of the malformed fetus, secondarily it will be necessary to explore the other apparently normal one. Uniparental disomy should be suspected in such situation (EL3). In TRAP sequence, an intensive follow up should be organised with serial measurement of the respective size of the acardiac fetus and the normal one, Doppler exploration should be done to look for early sign of cardiac decompensation (expert viewpoint). In dichorionic pregnancies, when the malformation is threatening the whole pregnancy like anencephaly, a selective feticide allow a prolongation of the pregnancy, but with a risk of fetal loss of 8% and a risk of iatrogenic prematurity of 12%. In such situation, it could be wise to evaluate the evolution or to wait until the third trimester to undergo the procedure (EL3). In monochorionic pregnancies, in the same situation of anencephalic fetus the best option is bipolar cord coagulation. The result seems to be better after 18 weeks of gestation (EL4). There is a 20% risk of premature rupture of membrane. In the up to date analysis of the literature, there is no formal indication of selective feticide expect case of TRAP sequence with cardiac decompensation of the normal fetus. The very special situation of sIUGR is the object of a randomized trial. In all cases the active participation of the patients to the therapeutic option is mandatory (expert viewpoint).
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Erol AO, Altay MM, Kaplan M, Kocak A, Karadeniz RS, Gelisen O. Good perinatal outcome of the pump twin in the twin reversed-arterial- perfusion sequence diagnosed at the ninth week of pregnancy and managed conservatively. J Matern Fetal Neonatal Med 2009; 22:952-5. [PMID: 19562635 DOI: 10.1080/14767050902994671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chen CH, Chen TH, Kuo SJ, Chen CD, Yang YS, Chen M. Late Termination of Pregnancy: Experience From an East Asian Population and Report of a Novel Technique for Feticide. J Med Ultrasound 2009. [DOI: 10.1016/s0929-6441(09)60128-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Lopriore E, Oepkes D. Fetal and neonatal haematological complications in monochorionic twins. Semin Fetal Neonatal Med 2008; 13:231-8. [PMID: 18356125 DOI: 10.1016/j.siny.2008.02.002] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Placental vascular anastomoses are almost invariably present in monochorionic (MC) placentas. These anastomoses are the essential anatomical substrate for the development of several haematological complications in MC twins, in particular twin-to-twin transfusion syndrome (TTTS). Several forms of TTTS have been described, including chronic TTTS, acute perimortem TTTS, twin anaemia-polycythaemia sequence, acute perinatal TTTS and twin reversed arterial perfusion sequence. A significant evolution in prenatal care strategies and management options for patients with TTTS has occurred during the last decade. In chronic TTTS, endoscopic laser ablation of communicating placental vessels has led to an increase in survival rates. This review analyzes the possible pathophysiologic mechanisms involved, discusses the latest findings in diagnosis, therapy and prognosis, and focuses on fetal and neonatal haematologic complications associated with the various forms of TTTS.
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Affiliation(s)
- E Lopriore
- Leiden University Medical Centre, Leiden, The Netherlands.
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