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Javid N, Donnolley N, Kingdom J, Dadouch R, D'Souza R. Women- and clinician- important outcomes and priorities regarding vasa praevia: An international qualitative study to inform development of a core outcome set. Women Birth 2024; 37:101614. [PMID: 38669723 DOI: 10.1016/j.wombi.2024.101614] [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: 01/28/2024] [Revised: 04/03/2024] [Accepted: 04/04/2024] [Indexed: 04/28/2024]
Abstract
BACKGROUND Many studies have reported interventions for women with vasa praevia to improve perinatal outcomes. However, which outcomes are important for women remains unclear. AIM To explore what outcomes are important for women with lived experience of vasa praevia and why, in order to inform the development of a core outcome set for studies on vasa praevia. METHODS An international qualitative study was conducted with women and clinicians. Semi-structured interviews were audio-recorded, transcribed, and analysed taking an inductive approach. FINDINGS Eighteen women and six clinicians (four obstetricians, two midwives) from the United States, United Kingdom, Canada, and Australia were interviewed. Participants identified 47 patient-important outcomes and experience measures, which were grouped under five themes: baby's survival and health, mother's physical health, mother's mental and emotional health, quality of health care delivery, and resource use and cost. While survival of the baby without short- and long-term morbidity remained the main priority, other important considerations included the physical, mental, social and financial wellbeing of families, future access to antenatal screening and diagnosis, information on management options and consequences, continuity of care, clear and effective communication, peer support and the appreciation of individual variations to risk tolerance, values and resource availability. CONCLUSION We have identified patient-important outcomes and experience measures that have been directly fed into the development of a core outcome set on vasa previa. Incorporating these considerations into both clinical practice and future research studies has the potential to improve outcomes and experiences for women with vasa praevia.
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Affiliation(s)
- Nasrin Javid
- Faculty of Health, University of Technology Sydney, 235-253, Jones Street, Ultimo, Sydney, New South Wales 2007, Australia; Sydney Institute for Women, Children, and their Families, Sydney, 83 Missenden Road, Camperdown, New South Wales 2050, Australia.
| | - Natasha Donnolley
- Faculty of Medicine and Health, University of New South Wales, Sydney, Botany street, Kensington, New South Wales 2033, Australia
| | - John Kingdom
- Division of Maternal and Fetal Medicine, Department of Obstetrics & Gynaecology, Mount Sinai Hospital, University of Toronto, Toronto, 600 University Avenue, Ontario, Toronto M5G 1×5, Canada
| | - Rachel Dadouch
- Division of Maternal and Fetal Medicine, Department of Obstetrics & Gynaecology, Mount Sinai Hospital, University of Toronto, Toronto, 600 University Avenue, Ontario, Toronto M5G 1×5, Canada
| | - Rohan D'Souza
- Division of Maternal and Fetal Medicine, Department of Obstetrics & Gynaecology, Mount Sinai Hospital, University of Toronto, Toronto, 600 University Avenue, Ontario, Toronto M5G 1×5, Canada; Departments of Obstetrics & Gynaecology and Health Research Methods, Evidence and Impact, McMaster University, Hamilton, 1280 Main St. West, Hamilton, Ontario L8S 4K1, Canada
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Boujenah J, Dupont-Bernabe C, Thuillier C, Sananes N, Bouhanna P, Rozenberg P. [Should we screen vasa praevia?]. GYNECOLOGIE, OBSTETRIQUE, FERTILITE & SENOLOGIE 2024:S2468-7189(24)00210-1. [PMID: 38795831 DOI: 10.1016/j.gofs.2024.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/18/2024] [Accepted: 05/20/2024] [Indexed: 05/28/2024]
Affiliation(s)
- Jeremy Boujenah
- Département d'obstétrique, groupe hospitalier Diaconesses Croix Saint-Simon, Paris, France.
| | - Celine Dupont-Bernabe
- Département d'obstétrique et gynécologie, hôpital américain de Paris, 92200 Neuilly-sur-Seine, France
| | - Claire Thuillier
- Département d'obstétrique et gynécologie, hôpital américain de Paris, 92200 Neuilly-sur-Seine, France
| | - Nicolas Sananes
- Département d'obstétrique et gynécologie, hôpital américain de Paris, 92200 Neuilly-sur-Seine, France
| | - Philippe Bouhanna
- Département d'obstétrique et gynécologie, hôpital américain de Paris, 92200 Neuilly-sur-Seine, France
| | - Patrick Rozenberg
- Département d'obstétrique et gynécologie, hôpital américain de Paris, 92200 Neuilly-sur-Seine, France; Inserm, équipe U1018, épidémiologie clinique, CESP, université Paris-Saclay, UVSQ, 78180 Montigny-le-Bretonneux, France
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Oyelese Y, Javinani A, Gudanowski B, Krispin E, Rebarber A, Akolekar R, Catanzarite V, D'Souza R, Bronsteen R, Odibo A, Scheier MA, Hasegawa J, Jauniaux E, Lees C, Srinivasan D, Daly-Jones E, Duncombe G, Melcer Y, Maymon R, Silver R, Prefumo F, Tachibana D, Henrich W, Cincotta R, Shainker SA, Ranzini AC, Roman AS, Chmait R, Hernandez-Andrade EA, Rolnik DL, Sepulveda W, Shamshirsaz AA. Vasa previa in singleton pregnancies: diagnosis and clinical management based on an international expert consensus. Am J Obstet Gynecol 2024:S0002-9378(24)00442-3. [PMID: 38494071 DOI: 10.1016/j.ajog.2024.03.013] [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: 11/20/2023] [Revised: 03/01/2024] [Accepted: 03/09/2024] [Indexed: 03/19/2024]
Abstract
BACKGROUND There are limited data to guide the diagnosis and management of vasa previa. Currently, what is known is largely based on case reports or series and cohort studies. OBJECTIVE This study aimed to systematically collect and classify expert opinions and achieve consensus on the diagnosis and clinical management of vasa previa using focus group discussions and a Delphi technique. STUDY DESIGN A 4-round focus group discussion and a 3-round Delphi survey of an international panel of experts on vasa previa were conducted. Experts were selected on the basis of their publication record on vasa previa. First, we convened a focus group discussion panel of 20 experts and agreed on which issues were unresolved in the diagnosis and management of vasa previa. A 3-round anonymous electronic survey was then sent to the full expert panel. Survey questions were presented on the diagnosis and management of vasa previa, which the experts were asked to rate on a 5-point Likert scale (from "strongly disagree"=1 to "strongly agree"=5). Consensus was defined as a median score of 5. Following responses to each round, any statements that had median scores of ≤3 were deemed to have had no consensus and were excluded. Statements with a median score of 4 were revised and re-presented to the experts in the next round. Consensus and nonconsensus statements were then aggregated. RESULTS A total of 68 international experts were invited to participate in the study, of which 57 participated. Experts were from 13 countries on 5 continents and have contributed to >80% of published cohort studies on vasa previa, as well as national and international society guidelines. Completion rates were 84%, 93%, and 91% for the first, second, and third rounds, respectively, and 71% completed all 3 rounds. The panel reached a consensus on 26 statements regarding the diagnosis and key points of management of vasa previa, including the following: (1) although there is no agreement on the distance between the fetal vessels and the cervical internal os to define vasa previa, the definition should not be limited to a 2-cm distance; (2) all pregnancies should be screened for vasa previa with routine examination for placental cord insertion and a color Doppler sweep of the region over the cervix at the second-trimester anatomy scan; (3) when a low-lying placenta or placenta previa is found in the second trimester, a transvaginal ultrasound with Doppler should be performed at approximately 32 weeks to rule out vasa previa; (4) outpatient management of asymptomatic patients without risk factors for preterm birth is reasonable; (5) asymptomatic patients with vasa previa should be delivered by scheduled cesarean delivery between 35 and 37 weeks of gestation; and (6) there was no agreement on routine hospitalization, avoidance of intercourse, or use of 3-dimensional ultrasound for diagnosis of vasa previa. CONCLUSION Through focus group discussion and a Delphi process, an international expert panel reached consensus on the definition, screening, clinical management, and timing of delivery in vasa previa, which could inform the development of new clinical guidelines.
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Affiliation(s)
- Yinka Oyelese
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA; Division of Fetal Medicine and Surgery, Department of Surgery, Boston Children's Hospital, Boston, MA; Department of Obstetrics, Gynecology, and Reproductive Sciences, Harvard Medical School, Boston, MA.
| | - Ali Javinani
- Division of Fetal Medicine and Surgery, Department of Surgery, Boston Children's Hospital, Boston, MA; Department of Obstetrics, Gynecology, and Reproductive Sciences, Harvard Medical School, Boston, MA
| | - Brittany Gudanowski
- Division of Fetal Medicine and Surgery, Department of Surgery, Boston Children's Hospital, Boston, MA
| | - Eyal Krispin
- Division of Fetal Medicine and Surgery, Department of Surgery, Boston Children's Hospital, Boston, MA
| | - Andrei Rebarber
- Division of Maternal Fetal Medicine, Mount Sinai West, New York, NY; Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Icahn School of Medicine at Mount Sinai, New York, NY; Carnegie Imaging for Women, PLLC, New York, NY
| | - Ranjit Akolekar
- Medway Fetal and Maternal Medicine Centre, Medway NHS Foundation Trust, Gillingham, United Kingdom; Institute of Medical Sciences, Canterbury Christ Church University, Chatham, United Kingdom
| | - Val Catanzarite
- Maternal-Fetal Medicine, Rady Children's Specialists of San Diego, San Diego, CA
| | - Rohan D'Souza
- Department of Obstetrics & Gynecology, McMaster University, Hamilton, Canada; Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Canada
| | - Richard Bronsteen
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Corewell Health William Beaumont University Hospital, Royal Oak, MI
| | - Anthony Odibo
- Division of Maternal-Fetal Medicine, Department of Obstetrics & Gynecology, Washington University School of Medicine, St. Louis, MO
| | | | - Junichi Hasegawa
- Department of Perinatal Development Pathophysiology, St. Marianna University Graduate School of Medicine, Kawasaki, Japan
| | - Eric Jauniaux
- EGA Institute for Women's Health, Faculty of Population Health Sciences, University College London, London, United Kingdom
| | - Christoph Lees
- Queen Charlotte's and Chelsea Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom; Institute of Reproductive and Developmental Biology, Imperial College London, London, United Kingdom; Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Deepa Srinivasan
- Queen Charlotte's and Chelsea Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Elizabeth Daly-Jones
- Queen Charlotte's and Chelsea Hospital, Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Gregory Duncombe
- Department of Obstetrics and Gynaecology, Logan Hospital, Metro South Health, Meadowbrook, Australia
| | - Yaakov Melcer
- Department of Obstetrics and Gynecology, Shamir Medical Center, Tzrifin, Israel; Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ron Maymon
- Department of Obstetrics and Gynecology, Shamir Medical Center, Tzrifin, Israel; Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Robert Silver
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT
| | - Federico Prefumo
- Obstetrics and Gynaecology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Daisuke Tachibana
- Department of Obstetrics and Gynecology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Wolfgang Henrich
- Department of Obstetrics, Campus Virchow-Klinikum, Campus Charité Mitte, Universitätsmedizin Berlin, Berlin, Germany; Department of Obstetrics, Charité - University Medical Center, Berlin, Germany
| | - Robert Cincotta
- Department of Maternal Fetal Medicine, Mater Mothers' Hospital, South Brisbane, Australia
| | - Scott A Shainker
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA; Division of Fetal Medicine and Surgery, Department of Surgery, Boston Children's Hospital, Boston, MA; Department of Obstetrics, Gynecology, and Reproductive Sciences, Harvard Medical School, Boston, MA
| | - Angela C Ranzini
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, MetroHealth System, Case Western Reserve University, Cleveland, OH
| | - Ashley S Roman
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, NYU Langone Health, New York, NY
| | - Ramen Chmait
- Department of Obstetrics & Gynecology, Keck School of Medicine of the University of Southern California, Los Angeles, CA
| | - Edgar A Hernandez-Andrade
- Division of Maternal-Fetal Medicine, Department of Obstetrics, Gynecology and Reproductive Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX
| | - Daniel L Rolnik
- Department of Obstetrics and Gynaecology, Monash University, Clayton, Australia
| | - Waldo Sepulveda
- Fetal Imaging Unit, FETALMED Maternal-Fetal Diagnostic Center, Santiago, Chile
| | - Alireza A Shamshirsaz
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA; Division of Fetal Medicine and Surgery, Department of Surgery, Boston Children's Hospital, Boston, MA; Department of Obstetrics, Gynecology, and Reproductive Sciences, Harvard Medical School, Boston, MA.
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Laiu S, McMahon C, Rolnik DL. Inpatient versus outpatient management of prenatally diagnosed vasa praevia: A systematic review and meta-analysis. Eur J Obstet Gynecol Reprod Biol 2024; 293:156-166. [PMID: 38057179 DOI: 10.1016/j.ejogrb.2023.11.033] [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: 10/05/2023] [Revised: 11/15/2023] [Accepted: 11/25/2023] [Indexed: 12/08/2023]
Abstract
OBJECTIVE Vasa praevia is a serious pregnancy complication that is potentially life-threatening for the fetus. The possible benefits of prophylactic hospital admission of asymptomatic women diagnosed with vasa praevia antenatally remain unclear. This study aims to compare the pregnancy outcomes of inpatient versus outpatient management in women with a prenatal diagnosis of vasa praevia. METHODS A systematic search of four electronic databases was conducted and two reviewers independently screened studies for eligibility. The inclusion criteria incorporated studies with prenatally diagnosed vasa praevia, a distinction on whether women were managed as inpatients and/or outpatients and where perinatal mortality was recorded as an outcome. The primary outcome of the study was perinatal mortality with additional outcomes of perinatal morbidity, need for emergency caesarean and antenatal steroid administration. Reporting of the results followed the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. RESULTS The search produced 2,300 studies with ten of these studies included in the qualitative synthesis and four included in the quantitative analysis. There was no significant difference in perinatal mortality (OR 1.12, 95 % CI 0.10-12.07, p = 0.93, I2 = 0 %) or morbidity between women managed as inpatients or outpatients. The prophylactic inpatient group had higher rates of earlier gestational delivery and antenatal corticosteroid administration (OR 10.78, 95 % CI 1.07-108.74, p = 0.04, I2 = 82 %), but lower rates of emergency caesareans (OR 0.35, 95 % CI 0.17-0.72, p = 0.004, I2 = 0 %). CONCLUSION There were no significant differences in perinatal mortality or morbidity rates observed between inpatient and outpatient management of asymptomatic women with antenatally diagnosed vasa praevia. However, outpatient management is associated with prolonged gestation, a decrease in antenatal corticosteroid administration, and higher odds of emergency caesarean. Outpatient management of prenatally diagnosed vasa praevia seems appropriate for carefully selected asymptomatic women.
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Affiliation(s)
- Shelene Laiu
- Women's and Newborn, Monash Health, Melbourne, VIC 3168, Australia.
| | - Carine McMahon
- Department of Obstetrics & Gynaecology, Monash University, Melbourne, VIC 3800, Australia
| | - Daniel Lorber Rolnik
- Women's and Newborn, Monash Health, Melbourne, VIC 3168, Australia; Department of Obstetrics & Gynaecology, Monash University, Melbourne, VIC 3800, Australia
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Conyers S, Oyelese Y, Javinani A, Jamali M, Zargarzadeh N, Akolekar R, Hasegawa J, Melcer Y, Maymon R, Bronsteen R, Roman A, Shamshirsaz AA. Incidence and causes of perinatal death in prenatally diagnosed vasa previa: a systematic review and meta-analysis. Am J Obstet Gynecol 2024; 230:58-65. [PMID: 37321285 DOI: 10.1016/j.ajog.2023.06.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/26/2023] [Accepted: 06/07/2023] [Indexed: 06/17/2023]
Abstract
OBJECTIVE This study aimed to estimate the perinatal mortality associated with prenatally diagnosed vasa previa and to determine what proportion of those perinatal deaths are directly attributable to vasa previa. DATA SOURCES The following databases have been searched from January 1, 1987, to January 1, 2023: PubMed, Scopus, Web of Science, and Embase. STUDY ELIGIBILITY CRITERIA Our study included all studies (cohort studies and case series or reports) that had patients in which a prenatal diagnosis of vasa previa was made. Case series or reports were excluded from the meta-analysis. All cases in which prenatal diagnosis was not made were excluded from the study. METHODS The programming language software R (version 4.2.2) was used to conduct the meta-analysis. The data were logit transformed and pooled using the fixed effects model. The between-study heterogeneity was reported by I2. The publication bias was evaluated using a funnel plot and the Peters regression test. The Newcastle-Ottawa scale was used to assess the risk of bias. RESULTS Overall, 113 studies with a cumulative sample size of 1297 pregnant individuals were included. This study included 25 cohort studies with 1167 pregnancies and 88 case series or reports with 130 pregnancies. Moreover, 13 perinatal deaths occurred among these pregnancies, consisting of 2 stillbirths and 11 neonatal deaths. Among the cohort studies, the overall perinatal mortality was 0.94% (95% confidence interval, 0.52-1.70; I2=0.0%). The pooled perinatal mortality attributed to vasa previa was 0.51% (95% confidence interval, 0.23-1.14; I2=0.0%). Stillbirth and neonatal death were reported in 0.20% (95% confidence interval, 0.05-0.80; I2=0.0%) and 0.77% (95% confidence interval, 0.40-1.48; I2=0.0%) of pregnancies, respectively. CONCLUSION Perinatal death is uncommon after a prenatal diagnosis of vasa previa. Approximately half of the cases of perinatal mortality are not directly attributable to vasa previa. This information will help in guiding physicians in counseling and will provide reassurance to pregnant individuals with a prenatal diagnosis of vasa previa.
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Affiliation(s)
- Steffany Conyers
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Yinka Oyelese
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA; Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA; Maternal Fetal Care Center, Boston Children's Hospital, Harvard Medical School, Boston, MA.
| | - Ali Javinani
- Maternal Fetal Care Center, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Marzieh Jamali
- Maternal Fetal Care Center, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Nikan Zargarzadeh
- Maternal Fetal Care Center, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Ranjit Akolekar
- Medway Fetal and Maternal Medicine Centre, Medway NHS Foundation Trust, Gillingham, United Kingdom; Institute of Medical Sciences, Canterbury Christ Church University, Chatham, Kent, United Kingdom
| | - Junichi Hasegawa
- Department of Obstetrics and Gynecology, St. Marianna School of Medicine, Kanagawa, Japan
| | - Yaakov Melcer
- Department of Obstetrics and Gynecology, The Yitzhak Shamir Medical Center (Formerly Assaf Harofeh Medical Center), Affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ron Maymon
- Department of Obstetrics and Gynecology, The Yitzhak Shamir Medical Center (Formerly Assaf Harofeh Medical Center), Affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Richard Bronsteen
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Corewell Health, Royal Oak, MI
| | - Ashley Roman
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, NYU Langone Health, New York, NY
| | - Alireza A Shamshirsaz
- Maternal Fetal Care Center, Boston Children's Hospital, Harvard Medical School, Boston, MA
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Saji S, Hasegawa J, Oyelese Y, Furuya N, Homma C, Nishimura Y, Nakamura M, Suzuki N. Individualized management of vasa previa and neonatal outcomes. J Obstet Gynaecol Res 2023; 49:2680-2685. [PMID: 37621145 DOI: 10.1111/jog.15775] [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: 06/01/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023]
Abstract
OBJECTIVE To describe our individualized management protocol for women with an antenatal diagnosis of vasa previa (VP) and to report maternal and neonatal outcomes in patients managed according to our protocol. METHODS A retrospective study of prospectively collected data of antenatally diagnosed VP managed at our hospital between 2014 and 2021. Obstetric and neonatal outcomes were reviewed and analyzed. RESULTS Fourteen cases of antenatally diagnosed VP in 5150 total deliveries were analyzed (0.3%) Five cases (36%) of VP were diagnosed during the routine fetal morphological ultrasound screening, and nine cases (64%) were referred to our hospital due to perinatal complications. There were nine cases that required hospitalization (due to fetal growth restriction [FGR] [1], preterm labor [3], patients' request [5]). The other five were asymptomatic. Eight patients were delivered by scheduled cesarean section at around 36 weeks and only three neonates were admitted to NICU with transient tachypnea of newborn. However, six patients required CS before the scheduled dates because of other complications (preterm labor [3], abnormal cardiotocogram patterns [1], FGR [1] and twin pregnancy [1]). Four neonates born by CS before their scheduled dates were admitted to NICU. No cases required prolonged hospitalization and there were no serious neonatal complications. CONCLUSION Individualized management may lead to favorable outcomes with VP. Outpatient management may be considered in patients without risk factors. However, maternal hospitalization and earlier scheduled CS should be considered in symptomatic patients or those at risk for preterm delivery.
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Affiliation(s)
- Shota Saji
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Junichi Hasegawa
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Yinka Oyelese
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, USA
| | - Natsumi Furuya
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Chika Homma
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Yoko Nishimura
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Masamitsu Nakamura
- Department of Obstetrics and Gynecology, Fujita Health University, Toyoake, Aichi, Japan
| | - Nao Suzuki
- Department of Obstetrics and Gynecology, St. Marianna University School of Medicine, Kawasaki, Japan
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Villani LA, Al‐Torshi R, Shah PS, Kingdom JC, D'Souza R, Keunen J. Inpatient vs outpatient management of pregnancies with vasa previa: A historical cohort study. Acta Obstet Gynecol Scand 2023; 102:1558-1565. [PMID: 37537788 PMCID: PMC10577631 DOI: 10.1111/aogs.14595] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 04/26/2023] [Accepted: 05/01/2023] [Indexed: 08/05/2023]
Abstract
INTRODUCTION Vasa previa, a condition where unprotected fetal blood vessels lie in proximity to the internal cervical opening, is a potentially lethal obstetric complication. The precarious situation of these vessels increases the risk of fetal hemorrhage with spontaneous or artificial rupture of membranes, frequently causing fetal/neonatal demise or severe morbidity. As a result, in many centers, inpatient management forms the mainstay when vasa previa is diagnosed antenatally. This study aimed to determine whether a subpopulation of pregnancies diagnosed antenatally with vasa previa could be safely managed as outpatients. MATERIAL AND METHODS We reviewed all cases of vasa previa in singleton pregnancies, with no fetal anomalies, diagnosed at Mount Sinai Hospital, Toronto, from January 2008 to December 2017. Cases were categorized into three arms for analysis: outpatients (OP), asymptomatic hospitalized (ASH) and symptomatic hospitalized (SH). The SH arm included patients admitted with any antepartum bleeding or suspicious fetal non-stress test. Those that presented with symptomatic uterine activity/threatened preterm labor and delivered within 7 days of diagnosis were excluded from the study. Records were analyzed for details on hospitalization, antenatal corticosteroid administration, cervical length measurements, and fetal/neonatal mortality and morbidity. RESULTS Of the 84 antenatally-diagnosed cases of vasa previa, 47 fulfilled eligibility criteria. A total of 15 cases were managed as OP, 22 as ASH and 10 as SH. Unplanned cesareans were highest in the SH arm (40% vs. 0% ASH vs. 13.3% OP). Those in the SH arm delivered earliest (median 33.8 weeks, interquartile range (IQR) 33.2-34.3 weeks). Of the asymptomatic patients, those in the ASH arm delivered earlier than those in the OP arm (35.3 [34.6-36.2] weeks vs. 36.7 [35.6-37.2] weeks, p = 0.037). There were no cases of fetal/neonatal death, anemia or severe neonatal morbidity and no significant differences between groups based on cervical length or antenatal corticosteroid administration. CONCLUSIONS Our study suggests that asymptomatic women with an antenatal diagnosis of vasa previa, singleton pregnancies, and at low risk for preterm birth may safely managed as outpatients, as long as they are able to access hospital promptly in the event of antepartum bleeding or early labor.
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Affiliation(s)
- Linda A. Villani
- Division of Maternal and Fetal Medicine, Department of Obstetrics & GynecologyMount Sinai Hospital, University of TorontoTorontoOntarioCanada
| | - Rashida Al‐Torshi
- Division of Maternal and Fetal Medicine, Department of Obstetrics & GynecologyMount Sinai Hospital, University of TorontoTorontoOntarioCanada
| | - Prakesh S. Shah
- Department of PediatricsMount Sinai Hospital, University of TorontoTorontoOntarioCanada
| | - John C. Kingdom
- Division of Maternal and Fetal Medicine, Department of Obstetrics & GynecologyMount Sinai Hospital, University of TorontoTorontoOntarioCanada
| | - Rohan D'Souza
- Division of Maternal and Fetal Medicine, Department of Obstetrics & GynecologyMount Sinai Hospital, University of TorontoTorontoOntarioCanada
- Department of Obstetrics & GynecologyMcMaster UniversityHamiltonOntarioCanada
- Department of Health Research Methods, Evidence and ImpactMcMaster UniversityHamiltonOntarioCanada
| | - Johannes Keunen
- Division of Maternal and Fetal Medicine, Department of Obstetrics & GynecologyMount Sinai Hospital, University of TorontoTorontoOntarioCanada
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Zhang W, Giacchino T, Chanyarungrojn PA, Ionescu O, Akolekar R. Incidence of vasa praevia: a systematic review and meta-analysis. BMJ Open 2023; 13:e075245. [PMID: 37730391 PMCID: PMC10514663 DOI: 10.1136/bmjopen-2023-075245] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 08/31/2023] [Indexed: 09/22/2023] Open
Abstract
OBJECTIVES To derive accurate estimates of the incidence of vasa praevia (VP) in a routine population of unselected pregnancies. DESIGN Systematic review and meta-analysis. DATA SOURCES A search of MEDLINE, EMBASE, CINAHL and the Cochrane database was performed to review relevant citations reporting outcomes in pregnancies with VP from January 2000 until 5 April 2023. ELIGIBILITY CRITERIA FOR SELECTION OF STUDIES Prospective or retrospective cohort or population studies that provided data regarding VP cases in routine unselected pregnancies during the study period. We included studies published in the English language after the year 2000 to reflect contemporary obstetric and neonatal practice. DATA EXTRACTION AND SYNTHESIS Two reviewers independently screened the retrieved citations and extracted data. The methodological quality of studies was assessed using the Newcastle-Ottawa Scale, and Preferred Reporting Items for Systematic reviews and Meta-Analyses was used to ensure standardised reporting of studies. RESULTS A total of 3847 citations were screened and 82 full-text manuscripts were retrieved for analysis. There were 24 studies that met the inclusion criteria, of which 12 studies reported prenatal diagnosis with a systematic protocol of screening. There were 1320 pregnancies with VP in a total population of 2 278 561 pregnancies; the weighted pooled incidence of VP was 0.79 (95% CI: 0.59 to 1.01) per 1000 pregnancies, corresponding to 1 case of VP per 1271 (95% CI: 990 to 1692) pregnancies. Nested subanalysis of studies reporting screening for VP based on a specific protocol identified 395 pregnancies with VP in a population of 732 654 pregnancies with weighted pooled incidence of 0.82 (95% CI: 0.53 to 1.18) per 1000 pregnancies (1 case of VP per 1218 (95% CI: 847 to 1901) pregnancies). CONCLUSION The incidence of VP in unselected pregnancies is 1 in 1218 pregnancies. This is higher than is previously reported and can be used as a basis to assess whether screening for this condition should be part of routine clinical practice. Incorporation of strategies to screen for VP in routine clinical practice is likely to prevent 5% of stillbirths. PROSPERO REGISTRATION NUMBER CRD42020125495.
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Affiliation(s)
- Weiyu Zhang
- Medway Fetal and Maternal Medicine Centre, Medway NHS Foundation Trust, Gillingham, UK
| | - Tara Giacchino
- Medway Fetal and Maternal Medicine Centre, Medway NHS Foundation Trust, Gillingham, UK
| | | | - Olivia Ionescu
- Medway Fetal and Maternal Medicine Centre, Medway NHS Foundation Trust, Gillingham, UK
| | - Ranjit Akolekar
- Medway Fetal and Maternal Medicine Centre, Medway NHS Foundation Trust, Gillingham, UK
- Institute of Medical Sciences, Canterbury Christ Church University, Chatham, UK
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Oyelese Y, Javinani A, Shamshirsaz AA. Vasa Previa. Obstet Gynecol 2023; 142:503-518. [PMID: 37590981 PMCID: PMC10424826 DOI: 10.1097/aog.0000000000005287] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/10/2023] [Accepted: 05/05/2023] [Indexed: 08/19/2023]
Abstract
Vasa previa refers to unprotected fetal vessels running through the membranes over the cervix. Until recently, this condition was associated with an exceedingly high perinatal mortality rate attributable to fetal exsanguination when the membranes ruptured. However, ultrasonography has made it possible to diagnose the condition prenatally, allowing cesarean delivery before labor or rupture of the membranes. Several recent studies have indicated excellent outcomes with prenatally diagnosed vasa previa. However, outcomes continue to be dismal when vasa previa is undiagnosed before labor. Risk factors for vasa previa include second-trimester placenta previa and low-lying placentas, velamentous cord insertion, placentas with accessory lobes, in vitro fertilization, and multifetal gestations. Recognition of individuals who are at risk and screening them will greatly decrease the mortality rate from this condition. Because of the relative rarity of vasa previa, there are no randomized controlled trials to guide management. Therefore, recommendations on the diagnosis and management of vasa previa are based largely on cohort studies and expert opinion. This Clinical Expert Series review addresses the epidemiology, pathophysiology, natural history, diagnosis and management of vasa previa, as well as innovative treatments for the condition.
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Affiliation(s)
- Yinka Oyelese
- Department of Obstetrics & Gynecology, Beth Israel Deaconess Medical Center/Harvard Medical School and Maternal Fetal Care Center at Boston Children's Hospital/Harvard Medical School, Boston, Massachusetts
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10
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Heyborne K. Perinatal Mortality Despite Prenatal Diagnosis of Vasa Previa: A Systematic Review. Obstet Gynecol 2023; 142:519-528. [PMID: 37535966 DOI: 10.1097/aog.0000000000005296] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 06/01/2023] [Indexed: 08/05/2023]
Abstract
OBJECTIVE To determine the causes and potential preventability of perinatal deaths in prenatally identified cases of vasa previa. DATA SOURCES Reports of prenatally identified cases of vasa previa published in the English language literature since 2000 were identified in Medline and ClinicalTrials.gov with the search terms "vasa previa," "abnormal cord insertion," "velamentous cord," "marginal cord," "bilobed placenta," and "succenturiate lobe." METHODS OF STUDY SELECTION All cases from the above search with an antenatally diagnosed vasa previa present at delivery in singleton or twin gestations with perinatal mortality information were included. TABULATION, INTEGRATION, AND RESULTS Cases meeting inclusion criteria were manually abstracted, and multiple antenatal, intrapartum, and outcome variables were recorded. Deaths and cases requiring neonatal transfusion were analyzed in relation to plurality, routine hospitalization, and cervical length monitoring. A total of 1,109 prenatally diagnosed cases (1,000 singletons, 109 twins) were identified with a perinatal mortality rate attributable to vasa previa of 1.1% (95% CI 0.6-1.9%). All perinatal deaths occurred with unscheduled deliveries. The perinatal mortality rate in twin pregnancies was markedly higher than that in singleton pregnancies (9.2% vs 0.2%, P <.001), accounting for 80% of overall mortality despite encompassing only 9.8% of births. Compared with individuals with singleton pregnancies, those with twin pregnancies are more likely to undergo unscheduled delivery (56.4% vs 35.1%, P =.01) despite delivering 2 weeks earlier (33.2 weeks vs 35.1 weeks, P =.006). An institutional policy of routine hospitalization is associated with a reduced need for neonatal transfusion (0.9% vs 6.0%, P <.001) and a reduction in the perinatal mortality rate in twin pregnancies (0% vs 25%, P =.002) but not in singleton pregnancies (0% vs 0.5%, P =.31). CONCLUSION Routine hospitalization and earlier delivery of twins may result in a reduction in the perinatal mortality rate. A smaller benefit from routine admission of individuals with singleton pregnancies cannot be excluded. There is currently insufficient evidence to recommend the routine use of cervical length measurements to guide clinical management.
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Affiliation(s)
- Kent Heyborne
- Denver Health Medical Center and the University of Colorado School of Medicine, Aurora, Colorado
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11
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Ward S, Sun Z, Maresse S. Current practice of placental cord insertion documentation in Australia - A sonographer survey. Australas J Ultrasound Med 2023; 26:157-168. [PMID: 37701770 PMCID: PMC10493351 DOI: 10.1002/ajum.12360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023] Open
Abstract
Introduction During pregnancy, the umbilical cord attaches to the placenta in a central, eccentric, marginal or velamentous location. Maternal and fetal complications are associated with marginal and velamentous cord insertions, the most clinically significant being perinatal mortality due to undiagnosed vasa praevia. Current literature describes a wide variation regarding regulation of placental cord insertion (PCI) documentation during antenatal ultrasound examinations. This prospective cross-sectional study aimed to assess the current practice of antenatal PCI documentation in Australia. Methods Members of the Australian Sonographer Accreditation Registry were invited to participate in an online survey which was distributed between February and March 2022. Results Four hundred ninety sonographers met the inclusion criteria for the study of which 330 (67.3%) have more than 10 years' experience as a sonographer and 375 (76.5%) are employed primarily in a public or private setting offering general ultrasound. Most respondents (89.6%) indicated documentation of the PCI site is departmental protocol at the second trimester anatomy scan (17-22 weeks gestation), but PCI documentation is protocol in less than 50% of other obstetric ultrasound examinations listed in the survey. The PCI site is included in the formal ultrasound report at a rate significantly less than inclusion in the departmental protocol and the sonographer's worksheet. Conclusions Considering the potential maternal and fetal complications associated with abnormal PCI and the ease at which the PCI site is identified in the first and second trimesters, we believe that standard inclusion of the PCI site in departmental protocol and in the formal ultrasound report from 11 weeks gestation, regardless of whether it is normal or abnormal, would prove invaluable.
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Affiliation(s)
- Samantha Ward
- Discipline of Medical Radiation Science, Curtin Medical SchoolCurtin UniversityPerthWestern AustraliaAustralia
| | - Zhonghua Sun
- Discipline of Medical Radiation Science, Curtin Medical SchoolCurtin UniversityPerthWestern AustraliaAustralia
| | - Sharon Maresse
- Discipline of Medical Radiation Science, Curtin Medical SchoolCurtin UniversityPerthWestern AustraliaAustralia
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12
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Jain V, Gagnon R. Guideline No. 439: Diagnosis and Management of Vasa Previa. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2023; 45:506-518. [PMID: 37209787 DOI: 10.1016/j.jogc.2023.05.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
OBJECTIVE To summarize the current evidence and to make recommendations for diagnosis and classification of vasa previa and for management of women with this diagnosis. TARGET POPULATION Pregnant women with vasa previa or low-lying fetal vessels. OPTIONS To manage vasa previa in hospital or at home, and to perform a cesarean delivery preterm or at term, or to allow a trial of labour when a diagnosis of vasa previa or low-lying fetal vessels is suspected or confirmed. OUTCOMES Prolonged hospitalization, preterm birth, rate of cesarean delivery, and neonatal morbidity and mortality. BENEFITS, HARMS, AND COSTS Women with vasa previa or low-lying fetal vessels are at an increased risk of maternal and fetal or postnatal adverse outcomes. These outcomes include a potentially incorrect diagnosis, need for hospitalization, unnecessary restriction of activities, an early delivery, and an unnecessary cesarean delivery. Optimization of diagnostic and management protocols can improve maternal and fetal or postnatal outcomes. EVIDENCE Medline, Pubmed, Embase, and the Cochrane Library were searched from inception to March 2022, using medical subject headings (MeSH) and keywords related to pregnancy, vasa previa, low-lying fetal vessels, antepartum hemorrhage, short cervix, preterm labour, and cesarean delivery. This document presents an abstraction of the evidence rather than a methodological review. VALIDATION METHODS The authors rated the quality of evidence and strength of recommendations using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. See online Appendix A (Tables A1 for definitions and A2 for interpretations of strong and weak recommendations). INTENDED AUDIENCE Obstetric care providers, including obstetricians, family physicians, nurses, midwives, maternal-fetal medicine specialists, and radiologists. TWEETABLE ABSTRACT Unprotected fetal vessels in placental membranes and cord that are close to the cervix, including vasa previa, need careful characterization by sonographic examination and evidence-based management to reduce risks to the baby and the mother during pregnancy and delivery. SUMMARY STATEMENTS RECOMMENDATIONS.
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13
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Jain V, Gagnon R, Andrews J, Choo S, Codsi E, Coolen J, Guay A, Hutson J, Jain V, Ladhani NNN, Martin H, Niles K, Pylypjuk C, Quesnel G, Wong K. Directive clinique no 439: Diagnostic et prise en charge du vasa prævia. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2023:S1701-2163(23)00379-1. [PMID: 37209786 DOI: 10.1016/j.jogc.2023.05.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
OBJECTIF Résumer les données probantes actuelles et énoncer des recommandations pour le diagnostic et la classification du vasa prævia et pour la prise en charge des femmes ayant reçu ce diagnostic. POPULATION CIBLE Femmes enceintes présentant un vasa prævia ou des vaisseaux ombilicaux péricervicaux. OPTIONS En cas de diagnostic soupçonné ou confirmé de vasa prævia ou de vaisseaux ombilicaux péricervicaux, prendre en charge la patiente à l'hôpital ou à domicile, puis pratiquer une césarienne avant terme ou à terme ou entreprendre une épreuve de travail. RéSULTATS: Hospitalisation prolongée, accouchement prématuré, césarienne et morbidité et mortalité néonatales. BéNéFICES, RISQUES ET COûTS: Les femmes ayant un vasa prævia ou des vaisseaux ombilicaux péricervicaux présentent un risque accru d'issues défavorables maternelles, fœtales ou postnatales, à savoir un diagnostic potentiellement erroné, un besoin d'hospitalisation, une restriction inutile des activités, un accouchement précoce et une césarienne inutile. L'optimisation des protocoles de diagnostic et de prise en charge peut améliorer les issues maternelles, fœtales et postnatales. DONNéES PROBANTES: Des recherches ont été effectuées dans les bases de données Medline, PubMed, Embase et Cochrane Library, de leur création jusqu'à mars 2022, à partir de termes MeSH et de mots clés liés à la grossesse, au vasa prævia, aux vaisseaux prævia, à l'hémorragie ante partum, au col court, au travail prématuré et à la césarienne. Le présent document est un résumé des données probantes et non pas une revue méthodologique. MéTHODES DE VALIDATION: Les auteurs ont évalué la qualité des données probantes et la force des recommandations en utilisant le cadre méthodologique GRADE (Grading of Recommendations Assessment, Development and Evaluation). Voir l'annexe A en ligne (tableau A1 pour les définitions et tableau A2 pour l'interprétation des recommandations fortes et faibles). PROFESSIONNELS CONCERNéS: Fournisseurs de soins obstétricaux, y compris obstétriciens, médecins de famille, infirmières, sages-femmes, spécialistes en médecine fœto-maternelle et radiologistes. RéSUMé POUR TWITTER: En cas de cordon et de vaisseaux ombilicaux non protégés dans les membranes près du col (vasa prævia y compris), une caractérisation échographique et une prise en charge avisée s'imposent pour réduire les risques pour le bébé et la mère pendant la grossesse et l'accouchement.
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14
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Zahedi-Spung LD, Stout MJ, Carter EB, Dicke JM, Tuuli MG, Raghuraman N. Obstetric Outcomes in Singleton Pregnancies with Abnormal Placental Cord Insertions. Am J Perinatol 2023; 40:89-94. [PMID: 33934323 DOI: 10.1055/s-0041-1729163] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE There is wide variation in the management of pregnancies complicated by abnormal placental cord insertion (PCI), which includes velamentous cord insertion (VCI) and marginal cord insertion (MCI). We tested the hypothesis that abnormal PCI is associated with small for gestational age (SGA) infants. STUDY DESIGN This is a retrospective cohort study of all pregnant patients undergoing anatomic ultrasound at a single institution from 2010 to 2017. Patients with abnormal PCI were matched in a 1:2 ratio by race, parity, gestational age at the time of ultrasound, and obesity to patients with normal PCIs. The primary outcome was SGA at delivery. Secondary outcomes were cesarean delivery, preterm delivery, cesarean delivery for nonreassuring fetal status, 5-minute Apgar score < 7, umbilical artery pH < 7.1, and neonatal intensive care unit admission. These outcomes were compared using univariate and bivariate analyses. RESULTS Abnormal PCI was associated with an increased risk of SGA (relative risk [RR]: 2.43; 95% confidence interval [CI]: 1.26-4.69), increased risk of preterm delivery <37 weeks (RR: 3.60; 95% CI: 1.74-7.46), and <34 weeks (RR: 3.50; 95% CI: 1.05-11.63) compared with patients with normal PCI. There was no difference in rates of cesarean delivery, Apgar score of <7 at 5 minutes, acidemia, or neonatal intensive care unit admission between normal and abnormal PCI groups. In a stratified analysis, the association between abnormal PCI and SGA did not differ by the type of abnormal PCI (p for interaction = 0.46). CONCLUSION Abnormal PCI is associated with an increased risk of SGA and preterm delivery. These results suggest that serial fetal growth assessments in this population may be warranted. KEY POINTS · Abnormal PCI is associated with SGA infants and preterm birth.. · If an abnormal PCI is identified, the provider should consider serial growth ultrasounds.. · There is no difference in obstetric outcomes between VCI and MCI..
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Affiliation(s)
| | - Molly J Stout
- Division of Maternal-Fetal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Ebony B Carter
- Division of Maternal-Fetal Medicine, Washington University in St. Louis, Missouri
| | - Jeffrey M Dicke
- Division of Maternal-Fetal Medicine, Washington University in St. Louis, Missouri
| | - Methodius G Tuuli
- Department of Obstetrics and Gynecology, Indiana University, Indianapolis, Indiana
| | - Nandini Raghuraman
- Division of Maternal-Fetal Medicine, Washington University in St. Louis, Missouri
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15
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Oyelese Y, Lees CC, Jauniaux E. The case for screening for vasa previa: time to implement a life-saving strategy. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2023; 61:7-11. [PMID: 36178753 DOI: 10.1002/uog.26085] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/05/2022] [Accepted: 09/09/2022] [Indexed: 05/27/2023]
Affiliation(s)
- Y Oyelese
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - C C Lees
- Centre for Fetal Care, Queen Charlotte's and Chelsea Hospital, Imperial College Healthcare NHS Trust, London, UK
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
| | - E Jauniaux
- EGA Institute for Women's Health, Faculty of Population Health Sciences, University College London, London, UK
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16
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Larcher L, Jauniaux E, Lenzi J, Ragnedda R, Morano D, Valeriani M, Michelli G, Farina A, Contro E. Ultrasound diagnosis of placental and umbilical cord anomalies in singleton pregnancies resulting from in-vitro fertilization. Placenta 2023; 131:58-64. [PMID: 36493624 DOI: 10.1016/j.placenta.2022.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 11/19/2022] [Accepted: 11/23/2022] [Indexed: 11/30/2022]
Abstract
INTRODUCTION placental anomalies can affect fetal and maternal outcome due to severe maternal hemorrhage potentially resulting in hysterectomy and cord accident including abruption that can determine fetal damage or death. The aims of our study are to determine if the rate of placental and umbilical cord anomalies are more common in IVF singleton pregnancies compared to spontaneous pregnancies; to evaluate the role of ultrasound in screening for these anomalies and to investigate if oocyte donor fertilization is an additional risk factor for the development of these anomalies. METHODS this was a prospective cohort study involving two tertiary centers. Patients with a singleton pregnancy conceived with IVF and patients presenting with a spontaneous conception were recruited between 1st May 2019 to 31st March 2021. A total of 634 pregnancies were enrolled in the study. All patients underwent similar antenatal care, which included ultrasound examinations at 11-14, 19-22 and 33-35 weeks. Ultrasound findings of placental and/or umbilical cord abnormalities were recorded using the same protocol for both groups and confirmed after birth. RESULTS IVF pregnancies had a significantly higher risk of low-lying placenta, placenta previa, bilobed placenta and velamentous cord insertion (VCI) compared with spontaneous pregnancies. In the heterologous subgroup there was a significant increased incidence of placenta accreta spectrum (PAS) disorders than in spontaneous pregnancies. All these anomalies were identified prenatally on ultrasound imaging and confirmed at birth. DISCUSSION IVF pregnancies in general and those resulting from donor oocyte in particular are at higher risk of placental and umbilical cord abnormalities compared to spontaneous pregnancies. These anomalies can be diagnosed accurately at the mid-trimester detailed fetal anomaly scan and our findings support the need for a targeted ultrasound screening of these anomalies in IVF pregnancies.
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Affiliation(s)
- L Larcher
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery, IRCCS University Hospital of Bologna, Italy.
| | - E Jauniaux
- EGA Institute for Women's Health, Faculty of Population Health Sciences, University College London, UK
| | - J Lenzi
- Section of Hygiene, Public Health and Medical Statistics, Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum, University of Bologna, Italy
| | - R Ragnedda
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery, IRCCS University Hospital of Bologna, Italy
| | - D Morano
- Department of Obstetrics and Gynecology S. Anna University Hospital, Cona, Ferrara, Italy
| | - M Valeriani
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery, IRCCS University Hospital of Bologna, Italy
| | - G Michelli
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery, IRCCS University Hospital of Bologna, Italy
| | - A Farina
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery, IRCCS University Hospital of Bologna, Italy
| | - E Contro
- Division of Obstetrics and Prenatal Medicine, Department of Medicine and Surgery, IRCCS University Hospital of Bologna, Italy
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Sullivan E, Safi N, Li Z, Remond M, Chen TYT, Javid N, Dickinson JE, Ives A, Hammarberg K, Anazodo A, Boyle F, Fisher J, Halliday L, Duncombe G, McLintock C, Wang AY, Saunders C. Perinatal outcomes of women with gestational breast cancer in Australia and New Zealand: A prospective population-based study. Birth 2022; 49:763-773. [PMID: 35470904 PMCID: PMC9790712 DOI: 10.1111/birt.12642] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 02/22/2022] [Accepted: 04/07/2022] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To determine the epidemiology, clinical management, and outcomes of women with gestational breast cancer (GBC). METHODS A population-based prospective cohort study was conducted in Australia and New Zealand between 2013 and 2014 using the Australasian Maternity Outcomes Surveillance System (AMOSS). Women who gave birth with a primary diagnosis of breast cancer during pregnancy were included. Data were collected on demographic and pregnancy factors, GBC diagnosis, obstetric and cancer management, and perinatal outcomes. The main outcome measures were preterm birth, maternal complications, breastfeeding, and death. RESULTS Forty women with GBC (incidence 7.5/100 000 women giving birth) gave birth to 40 live-born babies. Thirty-three (82.5%) women had breast symptoms at diagnosis. Of 27 women diagnosed before 30 weeks' gestation, 85% had breast surgery and 67% had systemic therapy during pregnancy. In contrast, all 13 women diagnosed from 30 weeks had their cancer management delayed until postdelivery. There were 17 preterm deliveries; 15 were planned. Postpartum complications included the following: hemorrhage (n = 4), laparotomy (n = 1), and thrombocytopenia (n = 1). There was one late maternal death. Eighteen (45.0%) women initiated breastfeeding, including 12 of 23 women who had antenatal breast surgery. There were no perinatal deaths or congenital malformations, but 42.5% of babies were preterm, and 32.5% were admitted for higher-level neonatal care. CONCLUSIONS Gestational breast cancer diagnosed before 30 weeks' gestation was associated with surgical and systemic cancer care during pregnancy and planned preterm birth. In contrast, cancer treatment was deferred to postdelivery for women diagnosed from 30 weeks, reflecting the complexity of managing expectant mothers with GBC in multidisciplinary care settings.
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Affiliation(s)
- Elizabeth Sullivan
- College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleNew South WalesAustralia
| | - Nadom Safi
- College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleNew South WalesAustralia
| | - Zhuoyang Li
- College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleNew South WalesAustralia
| | - Marc Remond
- College of Health, Medicine and WellbeingUniversity of NewcastleNewcastleNew South WalesAustralia
| | - Tina Y. T. Chen
- Faculty of HealthUniversity of Technology SydneySydneyNew South WalesAustralia
| | - Nasrin Javid
- Faculty of HealthUniversity of Technology SydneySydneyNew South WalesAustralia
| | - Jan E. Dickinson
- Faculty of Health and Medical SciencesThe University of Western AustraliaPerthWestern AustraliaAustralia
| | - Angela Ives
- Faculty of Health and Medical Sciences, Medical SchoolThe University of Western AustraliaPerthWestern AustraliaAustralia
| | - Karin Hammarberg
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
| | - Antoinette Anazodo
- School of Women and ChildrenUniversity of New South WalesSydneyNew South WalesAustralia
| | - Frances Boyle
- Patricia Ritchie Centre for Cancer Care and ResearchMater Hospital Sydney, and University of SydneySydneyNew South WalesAustralia
| | - Jane Fisher
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia
| | - Lesley Halliday
- School of Public Health and Community MedicineUniversity of New South WalesSydneyNew South WalesAustralia
| | - Greg Duncombe
- Faculty of Medicine, Centre for Clinical ResearchUniversity of QueenslandBrisbaneQueenslandAustralia
| | - Claire McLintock
- National Women's HealthAuckland City HospitalAucklandNew Zealand
| | - Alex Y. Wang
- Faculty of HealthUniversity of Technology SydneySydneyNew South WalesAustralia
| | - Christobel Saunders
- Faculty of Health and Medical SciencesThe University of Western AustraliaPerthWestern AustraliaAustralia
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Mitchell SJ, Ngo G, Maurel KA, Hasegawa J, Arakaki T, Melcer Y, Maymon R, Vendittelli F, Shamshirsaz AA, Erfani H, Shainker SA, Saad AF, Treadwell MC, Roman AS, Stone JL, Rolnik DL. Timing of birth and adverse pregnancy outcomes in cases of prenatally diagnosed vasa previa: a systematic review and meta-analysis. Am J Obstet Gynecol 2022; 227:173-181.e24. [PMID: 35283090 DOI: 10.1016/j.ajog.2022.03.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 03/06/2022] [Accepted: 03/06/2022] [Indexed: 11/01/2022]
Abstract
OBJECTIVE The ideal time for birth in pregnancies diagnosed with vasa previa remains unclear. We conducted a systematic review aiming to identify the gestational age at delivery that best balances the risks for prematurity with that of pregnancy prolongation in cases with prenatally diagnosed vasa previa. DATA SOURCES Ovid MEDLINE, PubMed, CINAHL, Embase, Scopus, and Web of Science were searched from inception to January 2022. STUDY ELIGIBILITY CRITERIA The intervention analyzed was delivery at various gestational ages in pregnancies prenatally diagnosed with vasa previa. Cohort studies, case series, and case reports were included in the qualitative synthesis. When summary figures could not be obtained directly from the studies for the quantitative synthesis, authors were contacted and asked to provide a breakdown of perinatal outcomes by gestational age at birth. METHODS Study appraisal was completed using the National Institutes of Health quality assessment tool for the respective study types. Statistical analysis was performed using a random-effects meta-analysis of proportions. RESULTS The search identified 3435 studies of which 1264 were duplicates. After screening 2171 titles and abstracts, 140 studies proceeded to the full-text screen. A total of 37 studies were included for analysis, 14 of which were included in a quantitative synthesis. Among 490 neonates, there were 2 perinatal deaths (0.4%), both of which were neonatal deaths before 32 weeks' gestation. In general, the rate of neonatal complications decreased steadily from <32 weeks' gestation (4.6% rate of perinatal death, 91.2% respiratory distress, 11.4% 5-minute Apgar score <7, 23.3% neonatal blood transfusion, 100% neonatal intensive care unit admission, and 100% low birthweight) to 36 weeks' gestation (0% perinatal death, 5.3% respiratory distress, 0% 5-minute Apgar score <7, 2.9% neonatal blood transfusion, 29.2% neonatal intensive care unit admission, and 30.9% low birthweight). Complications then increased slightly at 37 weeks' gestation before decreasing again at 38 weeks' gestation. CONCLUSION Prolonging pregnancies until 36 weeks' gestation seems to be safe and beneficial in otherwise uncomplicated pregnancies with antenatally diagnosed vasa previa.
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Degirmenci Y, Steetskamp J, Macchiella D, Hasenburg A, Hasenburg A. Vasa previa: A rare obstetric complication-A case series and a literature review. Clin Case Rep 2022; 10:e05608. [PMID: 35356178 PMCID: PMC8939036 DOI: 10.1002/ccr3.5608] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 01/28/2022] [Accepted: 03/07/2022] [Indexed: 11/08/2022] Open
Abstract
Vasa previa is a rare condition. However, since the increase in assisted reproductive technologies (ARTs), clinicians are more frequently confronted with this complication. In this study, we present five cases of vasa previa prenatally diagnosed from a tertiary referral hospital with approximately 2000 births yearly.
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Affiliation(s)
- Yaman Degirmenci
- Department of Gynecology and ObstetricsUniversity Medical Center MainzMainzGermany
| | - Joscha Steetskamp
- Department of Gynecology and ObstetricsUniversity Medical Center MainzMainzGermany
| | - Doris Macchiella
- Department of Gynecology and ObstetricsUniversity Medical Center MainzMainzGermany
| | | | - Annette Hasenburg
- Department of Gynecology and ObstetricsUniversity Medical Center MainzMainzGermany
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20
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Ghidini A, Gandhi M, McCoy J, Kuller JA, Kuller JA. Society for Maternal-Fetal Medicine Consult Series #60: Management of pregnancies resulting from in vitro fertilization. Am J Obstet Gynecol 2022; 226:B2-B12. [PMID: 34736912 DOI: 10.1016/j.ajog.2021.11.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The use of assisted reproductive technology has increased in the United States in the past several decades. Although most of these pregnancies are uncomplicated, in vitro fertilization is associated with an increased risk for adverse perinatal outcomes primarily caused by the increased risks of prematurity and low birthweight associated with in vitro fertilization pregnancies. This Consult discusses the management of pregnancies achieved with in vitro fertilization and provides recommendations based on the available evidence. The recommendations by the Society for Maternal-Fetal Medicine are as follows: (1) we suggest that genetic counseling be offered to all patients undergoing or who have undergone in vitro fertilization with or without intracytoplasmic sperm injection (GRADE 2C); (2) regardless of whether preimplantation genetic testing has been performed, we recommend that all patients who have achieved pregnancy with in vitro fertilization be offered the options of prenatal genetic screening and diagnostic testing via chorionic villus sampling or amniocentesis (GRADE 1C); (3) we recommend that the accuracy of first-trimester screening tests, including cell-free DNA for aneuploidy, be discussed with patients undergoing or who have undergone in vitro fertilization (GRADE 1A); (4) when multifetal pregnancies do occur, we recommend that counseling be offered regarding the option of multifetal pregnancy reduction (GRADE 1C); (5) we recommend that a detailed obstetrical ultrasound examination (CPT 76811) be performed for pregnancies achieved with in vitro fertilization and intracytoplasmic sperm injection (GRADE 1B); (6) we suggest that fetal echocardiography be offered to patients with pregnancies achieved with in vitro fertilization and intracytoplasmic sperm injection (GRADE 2C); (7) we recommend that a careful examination of the placental location, placental shape, and cord insertion site be performed at the time of the detailed fetal anatomy ultrasound, including evaluation for vasa previa (GRADE 1B); (8) although visualization of the cervix at the 18 0/7 to 22 6/7 weeks of gestation anatomy assessment with either a transabdominal or endovaginal approach is recommended, we do not recommend serial cervical length assessment as a routine practice for pregnancies achieved with in vitro fertilization (GRADE 1C); (9) we suggest that an assessment of fetal growth be performed in the third trimester for pregnancies achieved with in vitro fertilization; however, serial growth ultrasounds are not recommended for the sole indication of in vitro fertilization (GRADE 2B); (10) we do not recommend low-dose aspirin for patients with pregnancies achieved with IVF as the sole indication for preeclampsia prophylaxis; however, if 1 or more additional risk factors are present, low-dose aspirin is recommended (GRADE 1B); (11) given the increased risk for stillbirth, we suggest weekly antenatal fetal surveillance beginning by 36 0/7 weeks of gestation for pregnancies achieved with in vitro fertilization (GRADE 2C); (12) in the absence of studies focused specifically on timing of delivery for pregnancies achieved with IVF, we recommend shared decision-making between patients and healthcare providers when considering induction of labor at 39 weeks of gestation (GRADE 1C).
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21
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Sherer DM, Al-Haddad S, Cheng R, Dalloul M. Current Perspectives of Prenatal Sonography of Umbilical Cord Morphology. Int J Womens Health 2021; 13:939-971. [PMID: 34703323 PMCID: PMC8541738 DOI: 10.2147/ijwh.s278747] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 09/04/2021] [Indexed: 12/15/2022] Open
Abstract
The umbilical cord constitutes a continuation of the fetal cardiovascular system anatomically bridging between the placenta and the fetus. This structure, critical in human development, enables mobility of the developing fetus within the gestational sac in contrast to the placenta, which is anchored to the uterine wall. The umbilical cord is protected by unique, robust anatomical features, which include: length of the umbilical cord, Wharton’s jelly, two umbilical arteries, coiling, and suspension in amniotic fluid. These features all contribute to protect and buffer this essential structure from potential detrimental twisting, shearing, torsion, and compression forces throughout gestation, and specifically during labor and delivery. The arterial components of the umbilical cord are further protected by the presence of Hyrtl’s anastomosis between the two respective umbilical arteries. Abnormalities of the umbilical cord are uncommon yet include excessively long or short cords, hyper or hypocoiling, cysts, single umbilical artery, supernumerary vessels, rarely an absent umbilical cord, stricture, furcate and velamentous insertions (including vasa previa), umbilical vein and arterial thrombosis, umbilical artery aneurysm, hematomas, and tumors (including hemangioma angiomyxoma and teratoma). This commentary will address current perspectives of prenatal sonography of the umbilical cord, including structural anomalies and the potential impact of future imaging technologies.
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Affiliation(s)
- David M Sherer
- The Division of Maternal Fetal Medicine, The Department of Obstetrics and Gynecology, State University of New York (SUNY), Downstate Health Sciences University, Brooklyn, NY, USA
| | - Sara Al-Haddad
- The Division of Maternal Fetal Medicine, The Department of Obstetrics and Gynecology, State University of New York (SUNY), Downstate Health Sciences University, Brooklyn, NY, USA
| | - Regina Cheng
- The Division of Maternal Fetal Medicine, The Department of Obstetrics and Gynecology, State University of New York (SUNY), Downstate Health Sciences University, Brooklyn, NY, USA
| | - Mudar Dalloul
- The Division of Maternal Fetal Medicine, The Department of Obstetrics and Gynecology, State University of New York (SUNY), Downstate Health Sciences University, Brooklyn, NY, USA
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22
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Sutera M, Garofalo A, Pilloni E, Parisi S, Alemanno MG, Menato G, Sciarrone A, Viora E. Vasa previa: when antenatal diagnosis can change fetal prognosis. J Perinat Med 2021; 49:915-922. [PMID: 33939903 DOI: 10.1515/jpm-2020-0559] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 04/14/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Evaluate ultrasound diagnostic accuracy, maternal-fetal characteristics and outcomes in case of vasa previa diagnosed antenatally, postnatally or with spontaneous resolution before delivery. METHODS Monocentric retrospective study enrolling women with antenatal or postnatal diagnosis of vasa previa at Sant'Anna Hospital in Turin from 2007 to 2018. Vasa previa were defined as fetal vessels that lay 2 cm within the uterine internal os using 2D and Color Doppler transvaginal ultrasound. Diagnosis was confirmed at delivery and on histopathological exam. Vasa previa with spontaneous resolutions were defined as fetal vessels that migrate >2 cm from uterine internal os during scheduled ultrasound follow-ups in pregnancy. RESULTS We enrolled 29 patients (incidence of 0.03%). Ultrasound antenatally diagnosed 25 vasa previa (five had a spontaneous resolution) while four were diagnosed postnatally, with an overall sensitivity of 96.2%, specificity of 100%, positive predictive value of 96.2%, and negative predictive value of 100%. Early gestational age at diagnosis is significally associate with spontaneously resolution (p 0.023; aOR 1.63; 95% IC 1.18-2.89). Nearly 93% of our patient had a risk factor for vasa previa: placenta previa at second trimester or low-lying placenta, bilobated placenta, succenturiate cotyledon, velametous cord insertion or assisted reproduction technologies. CONCLUSIONS Maternal and fetal outcomes in case of vasa previa antenatally diagnosed are significally improved. Our data support the evaluation of umbilical cord insertion during routine second trimester ultrasound and a targeted screening for vasa previa in women with risk factor: it allows identification of fetus at high risk, reducing fetal mortality in otherwise healthy newborns.
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Affiliation(s)
- Miriam Sutera
- Gynecology and Obstetrics Unit, Prenatal Diagnosis Ultrasound Center, Sant'Anna Hospital, Città della Salute e della Scienza, University of Turin, Turin, Italy
| | - Anna Garofalo
- Gynecology and Obstetrics Unit, Prenatal Diagnosis Ultrasound Center, Sant'Anna Hospital, Città della Salute e della Scienza, University of Turin, Turin, Italy
| | - Eleonora Pilloni
- Gynecology and Obstetrics Unit, Prenatal Diagnosis Ultrasound Center, Sant'Anna Hospital, Città della Salute e della Scienza, University of Turin, Turin, Italy
| | - Silvia Parisi
- Gynecology and Obstetrics Unit, Prenatal Diagnosis Ultrasound Center, Sant'Anna Hospital, Città della Salute e della Scienza, University of Turin, Turin, Italy
| | - Maria Grazia Alemanno
- Gynecology and Obstetrics Unit, Prenatal Diagnosis Ultrasound Center, Sant'Anna Hospital, Città della Salute e della Scienza, University of Turin, Turin, Italy
| | - Guido Menato
- Gynecology and Obstetrics Unit, Prenatal Diagnosis Ultrasound Center, Sant'Anna Hospital, Città della Salute e della Scienza, University of Turin, Turin, Italy
| | - Andrea Sciarrone
- Gynecology and Obstetrics Unit, Prenatal Diagnosis Ultrasound Center, Sant'Anna Hospital, Città della Salute e della Scienza, University of Turin, Turin, Italy
| | - Elsa Viora
- Gynecology and Obstetrics Unit, Prenatal Diagnosis Ultrasound Center, Sant'Anna Hospital, Città della Salute e della Scienza, University of Turin, Turin, Italy
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Tachibana D, Misugi T, Pooh RK, Kitada K, Kurihara Y, Tahara M, Hamuro A, Nakano A, Koyama M. Placental Types and Effective Perinatal Management of Vasa Previa: Lessons from 55 Cases in a Single Institution. Diagnostics (Basel) 2021; 11:diagnostics11081369. [PMID: 34441302 PMCID: PMC8392430 DOI: 10.3390/diagnostics11081369] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 07/27/2021] [Accepted: 07/28/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND We aimed to identify clinical characteristics and outcomes for each placental type of vasa previa (VP). METHODS Placental types of vasa previa were defined as follows: Type 1, vasa previa with velamentous cord insertion and non-type 1, vasa previa with a multilobed or succenturiate placenta and vasa previa with vessels branching out from the placental surface and returning to the placental cotyledons. RESULTS A total of 55 cases of vasa previa were included in this study, with 35 cases of type 1 and 20 cases of non-type 1. Vasa previa with type 1 showed a significantly higher association with assisted reproductive technology, compared with non-type 1 (p = 0.024, 60.0% and 25.0%, respectively). The diagnosis was significantly earlier in the type 1 group than in the non-Type 1 group (p = 0.027, 21.4 weeks and 28.6 weeks, respectively). Moreover, the Ward technique for anterior placentation to avoid injury of the placenta and/or fetal vessels was more frequently required in non-type 1 cases (p < 0.001, 60.0%, compared with 14.3% for type 1). CONCLUSION The concept of defining placental types of vasa previa will provide useful information for the screening of this serious complication, improve its clinical management and operative strategy, and achieve more preferable perinatal outcomes.
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Affiliation(s)
- Daisuke Tachibana
- Department of Obstetrics and Gynecology, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan; (T.M.); (K.K.); (Y.K.); (M.T.); (A.H.); (A.N.); (M.K.)
- Correspondence: ; Tel.: +81-6-6645-3862
| | - Takuya Misugi
- Department of Obstetrics and Gynecology, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan; (T.M.); (K.K.); (Y.K.); (M.T.); (A.H.); (A.N.); (M.K.)
| | - Ritsuko K. Pooh
- Fetal Diagnostic Center, Fetal Brain Center, CRIFM Clinical Research Institute of Fetal Medicine PMC, Osaka 543-0001, Japan;
| | - Kohei Kitada
- Department of Obstetrics and Gynecology, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan; (T.M.); (K.K.); (Y.K.); (M.T.); (A.H.); (A.N.); (M.K.)
| | - Yasushi Kurihara
- Department of Obstetrics and Gynecology, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan; (T.M.); (K.K.); (Y.K.); (M.T.); (A.H.); (A.N.); (M.K.)
| | - Mie Tahara
- Department of Obstetrics and Gynecology, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan; (T.M.); (K.K.); (Y.K.); (M.T.); (A.H.); (A.N.); (M.K.)
| | - Akihiro Hamuro
- Department of Obstetrics and Gynecology, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan; (T.M.); (K.K.); (Y.K.); (M.T.); (A.H.); (A.N.); (M.K.)
| | - Akemi Nakano
- Department of Obstetrics and Gynecology, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan; (T.M.); (K.K.); (Y.K.); (M.T.); (A.H.); (A.N.); (M.K.)
| | - Masayasu Koyama
- Department of Obstetrics and Gynecology, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan; (T.M.); (K.K.); (Y.K.); (M.T.); (A.H.); (A.N.); (M.K.)
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24
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Gross A, Markota Ajd B, Specht C, Scheier M. Systematic screening for vasa previa at the 20-week anomaly scan. Acta Obstet Gynecol Scand 2021; 100:1694-1699. [PMID: 34077551 DOI: 10.1111/aogs.14205] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 05/06/2021] [Accepted: 05/29/2021] [Indexed: 11/28/2022]
Abstract
INTRODUCTION The presence of vasa previa carries a high risk for severe fetal morbidity and mortality due to fetal bleeding caused by injury to unprotected fetal vessels when rupture of membranes occurs. Previously, it has been shown that prenatal diagnosis significantly improves the outcome. However, systematic screening for vasa previa is not generally performed and clinical studies demonstrating the performance of systematic screening for vasa previa in routine clinical practice are rare. The objective of this study was to assess the performance of systematic screening for vasa previa by determining placental cord insertion at the 20-week anomaly scan. MATERIAL AND METHODS This is a retrospective study of 6038 pregnant women between 18+0 and 24+0 gestational weeks who were prospectively screened for vasa previa by depiction of the site of placental cord insertion at the 20-week anomaly scan. Pregnancies with marginal or velamentous cord insertion underwent vaginal sonography for examination for vasa previa. In cases with succenturiate or bilobed placentas, the bridging vessels were depicted, and vaginal sonography was performed if necessary. RESULTS There were 21 cases of vasa previa and all were diagnosed prenatally. In 18 cases, the cord insertion was marginal or velamentous. The remaining three cases had placental anomalies, which necessitated a detailed examination. All pregnancies with vasa previa were delivered at a mean of 35.2 (SD 1.8) gestational weeks by cesarean section. Among pregnancies affected by vasa previa, all fetuses survived. The median birthweight was 2390 g (range 1200-2990 g) and the mean umbilical artery pH 7.34 (SD 0.04). The median 5-min APGAR score was nine (range 7-10). None of the fetuses or neonates died or required blood transfusions. In all pregnancies of the whole cohort which were complicated by fetal or neonatal demise and in neonates with a 5-min APGAR score ≤5 and/or an umbilical artery pH ≤7.10, fetal blood loss was excluded as a cause of the poor obstetric outcome. CONCLUSIONS Screening for vasa previa is feasible and efficient, taking into account the site of placental cord insertion in pregnancies not affected by placenta previa and bilobed and succenturiate placenta.
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Affiliation(s)
- Anna Gross
- Ambulatorium für Fetalmedizin Feldkirch, Feldkirch, Austria.,Department of Obstetrics and Gynecology, Clinical Center, Klagenfurt, Austria
| | - Barbara Markota Ajd
- Ambulatorium für Fetalmedizin Feldkirch, Feldkirch, Austria.,Department of Obstetrics and Gynecology, Clinical Center, Klagenfurt, Austria
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25
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Ranzini AC, Oyelese Y. How to screen for vasa previa. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2021; 57:720-725. [PMID: 33085148 DOI: 10.1002/uog.23520] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Indexed: 06/11/2023]
Affiliation(s)
- A C Ranzini
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, MetroHealth Medical Center/Case Western Reserve University, Cleveland, OH, USA
| | - Y Oyelese
- Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Atlantic Health System, Morristown, NJ, USA
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26
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Zhang W, Geris S, Al-Emara N, Ramadan G, Sotiriadis A, Akolekar R. Perinatal outcome of pregnancies with prenatal diagnosis of vasa previa: systematic review and meta-analysis. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2021; 57:710-719. [PMID: 32735754 DOI: 10.1002/uog.22166] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/14/2020] [Accepted: 07/17/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVES To derive accurate estimates of perinatal survival in pregnancies with and without a prenatal diagnosis of vasa previa based on a systematic review of the literature and meta-analysis. METHODS A search of MEDLINE, EMBASE and The Cochrane Library was performed to review relevant citations reporting on the perinatal outcomes of pregnancies with vasa previa. We included prospective and retrospective cohort and population studies that provided data on pregnancies with a prenatal diagnosis of vasa previa or cases diagnosed at birth or following postnatal placental examination. Meta-analysis using a random-effects model was performed to derive weighted pooled estimates of perinatal survival (excluding stillbirths and neonatal deaths) and intact perinatal survival (additionally excluding hypoxic morbidity). Incidence rate difference (IRD) meta-analysis was used to estimate the significance of differences in pooled proportions between cases of vasa previa with and those without a prenatal diagnosis. Heterogeneity between studies was estimated using Cochran's Q and the I2 statistic. RESULTS We included 21 studies reporting on the perinatal outcomes of 683 pregnancies with a prenatal diagnosis of vasa previa. There were three stillbirths (1.01% (95% CI, 0.40-1.87%)), five neonatal deaths (1.19% (95% CI, 0.52-2.12%)) and 675 surviving neonates, resulting in a pooled estimate for perinatal survival of 98.6% (95% CI, 97.6-99.3%). Based on seven studies that included cases of vasa previa with and without a prenatal diagnosis, the pooled perinatal survival in pregnancies without a prenatal diagnosis (61/118) was 72.1% (95% CI, 50.6-89.4%) vs 98.6% (95% CI, 96.7-99.7%) in cases with a prenatal diagnosis (224/226). Therefore, the risk of perinatal death was 25-fold higher when a diagnosis of vasa previa was not made antenatally, compared with when it was (odds ratio (OR), 25.39 (95% CI, 7.93-81.31); P < 0.0001). Similarly, the risk of hypoxic morbidity was increased 50-fold in cases with vasa previa without a prenatal diagnosis compared with those with a prenatal diagnosis (36/61 vs 5/224; OR, 50.09 (95% CI, 17.33-144.79)). The intact perinatal survival rate in cases of vasa previa without a prenatal diagnosis was significantly lower than in those with a prenatal diagnosis (28.1% (95% CI, 14.1-44.7%) vs 96.7% (95% CI, 93.6-98.8%)) (IRD, 73.4% (95% CI, 53.9-92.7%); Z = -7.4066, P < 0.001). CONCLUSIONS Prenatal diagnosis of vasa previa is associated with a high rate of perinatal survival, whereas lack of an antenatal diagnosis significantly increases the risk of perinatal death and hypoxic morbidity. Further research should be undertaken to investigate strategies for incorporating prenatal screening for vasa previa into routine clinical practice. © 2020 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- W Zhang
- Medway Fetal and Maternal Medicine Centre, Medway NHS Foundation Trust, Gillingham, UK
| | - S Geris
- Medway Fetal and Maternal Medicine Centre, Medway NHS Foundation Trust, Gillingham, UK
| | - N Al-Emara
- Medway Fetal and Maternal Medicine Centre, Medway NHS Foundation Trust, Gillingham, UK
| | - G Ramadan
- Oliver Fisher Neonatal Unit, Medway NHS Foundation Trust, Gillingham, UK
| | - A Sotiriadis
- Second Department of Obstetrics and Gynecology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - R Akolekar
- Medway Fetal and Maternal Medicine Centre, Medway NHS Foundation Trust, Gillingham, UK
- Medway Innovation Institute, Gillingham, UK
- Institute of Medical Sciences, Canterbury Christ Church University, Chatham, UK
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27
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Liu N, Hu Q, Liao H, Wang X, Yu H. Vasa previa: Perinatal outcomes in singleton and multiple pregnancies. Biosci Trends 2021; 15:118-125. [PMID: 33746156 DOI: 10.5582/bst.2021.01052] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Vasa previa (VP) is a rare and life-threatening condition for the fetus. It is associated with increased perinatal mortality rates. The current study sought to retrospectively analyze the perinatal outcomes of VP in singleton and multiple pregnancies between January 1, 2013 and December 31, 2019 at a tertiary hospital in west China. One hundred and fifty-seven cases of VP were identified, including 131 singletons, 23 twins and 3 triplets. VP in 20 cases was diagnosed at delivery. There were 183 live births. Neonatal mortality was significantly higher in cases with no prenatal diagnosis (9.7% vs. 1.3%, p = 0.035). There was a significantly higher rate of NICU admission, premature infant and neonatal pneumonia in cases with prenatal diagnosis (p < 0.05). Among twin pregnancies with VP as a prenatal diagnosis, there were significantly earlier gestational age at admission (31.1 vs. 34.1 weeks, p = 0.000) and delivery age (33.4 vs. 35.3 weeks, p = 0.000) than those among singleton pregnancies. The neonatal mortality in twins with prenatal diagnosis was significantly higher than that in singletons (0% vs. 6.9%, p = 0.037). Early hospitalization of VP in the third trimester may be reasonable. The data suggest that the timing of elective delivery at 34-36 weeks in singletons and 32-34 weeks in twins may be suitable. It should be emphasized to make corresponding optimal delivery time according to individual differences for the women, especially in twin pregnancy.
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Affiliation(s)
- Na Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University; Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Qing Hu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University; Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Hua Liao
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University; Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Xiaodong Wang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University; Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Haiyan Yu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University; Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
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Rethinking Prenatal Screening for Anomalies of Placental and Umbilical Cord Implantation. Obstet Gynecol 2021; 136:1211-1216. [PMID: 33156190 DOI: 10.1097/aog.0000000000004175] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The most common anomalies of implantation of the placenta and umbilical cord include placenta previa, placenta accreta spectrum, and vasa previa, and are associated with considerable perinatal and maternal morbidity and mortality. There is moderate quality evidence that prenatal diagnosis of these conditions improves perinatal outcomes and the performance of ultrasound imaging in diagnosing them is considered excellent. The epidemiology of placenta previa is well known, and it is standard clinical practice to assess placental location at the routine screening second-trimester detailed fetal anatomy ultrasound examination. In contrast, the prevalence of placenta accreta spectrum and vasa previa in the general population is more difficult to evaluate because detailed confirmatory histopathologic data are not available in most studies. The sensitivity and specificity of ultrasonography for the diagnosis of these anomalies is also difficult to assess. Recent epidemiologic studies show an increase in the incidence of placental and umbilical cord implantation anomalies, which may be the result of increased use of assisted reproductive technology and cesarean delivery. There is good evidence to support targeted standardized protocols for women at high risk and that screening and diagnosing placenta accreta spectrum and vasa previa should be integrated into obstetric ultrasound training programs.
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Lee HM, Lee S, Park MK, Han YJ, Kim MY, Boo HY, Chung JH. Clinical Significance of Velamentous Cord Insertion Prenatally Diagnosed in Twin Pregnancy. J Clin Med 2021; 10:jcm10040572. [PMID: 33546368 PMCID: PMC7913476 DOI: 10.3390/jcm10040572] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/19/2021] [Accepted: 01/30/2021] [Indexed: 12/16/2022] Open
Abstract
Background: The purpose of this study was to evaluate the prevalence of velamentous cord insertion (VCI) and the actual association between pathologically confirmed VCI and perinatal outcomes in twins based on the chorionicity. Methods: All twin pregnancies that received prenatal care at a specialty clinic for multiple pregnancies, from less than 12 weeks of gestation until delivery in a single institution between 2015 and 2018 were included in this retrospective cohort study. Results: A total of 941 twins were included in the study. The prevalence of VCI in dichorionic (DC) twins and monochorionic diamniotic (MCDA) twins was 5.8% and 7.8%, respectively (p = 0.251). In all study population, the prevalence of vasa previa and placenta accreta spectrum was higher in VCI group than that of non-VCI group (p = 0.008 and 0.022). In MCDA twins with VCI, birth weight, 1 and 5-min Apgar score were lower than DC twins with VCI (p = 0.010, 0.002 and 0.000). There was no significant association between VCI and selective fetal growth restriction (p = 0.486), twin-to-twin transfusion syndrome (p = 0.400), and birth-weight discordance (>20% and >25%) (p = 0.378 and 0.161) in MCDA twins. Conclusion: There was no difference in the incidence of VCI in twins based on the chorionicity. Moreover, VCI was not a risk factor for adverse perinatal outcomes excepting vasa previa and placenta accreta spectrum, which had a high incidence in twins with VCI.
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Affiliation(s)
- Hyun-Mi Lee
- Department of Obstetrics and Gynecology, CHA Ilsan Medical Center, CHA University, Goyang 10414, Korea; (H.-M.L.); (H.Y.B.)
| | - SiWon Lee
- Department of Obstetrics and Gynecology, Mount Sinai Medical Center, Miami Beach, FL 33109, USA;
| | - Min-Kyung Park
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul 03722, Korea;
| | - You Jung Han
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University, Seoul 06135, Korea; (Y.J.H.); (M.Y.K.)
| | - Moon Young Kim
- Department of Obstetrics and Gynecology, CHA Gangnam Medical Center, CHA University, Seoul 06135, Korea; (Y.J.H.); (M.Y.K.)
| | - Hye Yeon Boo
- Department of Obstetrics and Gynecology, CHA Ilsan Medical Center, CHA University, Goyang 10414, Korea; (H.-M.L.); (H.Y.B.)
| | - Jin Hoon Chung
- Department of Obstetrics and Gynecology, University of Ulsan College of Medicine, Asan Medical Center, Seoul 05505, Korea
- Correspondence: ; Tel.: +82-2-3010-3654
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Vasa praevia – ultrasonographic diagnosis and clinical management. GINECOLOGIA.RO 2021. [DOI: 10.26416/gine.33.3.2021.5310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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La S, Melov SJ, Nayyar R. Are we over-diagnosing vasa praevia? The experience and lessons learned in a tertiary centre. Aust N Z J Obstet Gynaecol 2020; 61:217-222. [PMID: 33058152 DOI: 10.1111/ajo.13259] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 09/09/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND Vasa praevia (VP) is a rare obstetric condition in which unprotected fetal vessels transverse the cervix, are vulnerable to rupture during labour and may result in rapid exsanguination of the fetus. Antenatal diagnosis of VP has resulted in excellent outcomes. However, there are little data available on the false positive rates for the antenatal diagnosis of VP. Improving accuracy of the diagnosis of VP can potentially improve outcomes and reduce unnecessary intervention. AIMS To assess our accuracy in the diagnosis of VP, examine our false positive diagnoses of VP and suggest strategies during antenatal ultrasound to aid in the antenatal diagnosis of VP. MATERIAL AND METHODS We conducted a retrospective descriptive study of women diagnosed with VP antenatally over 11 years at a single tertiary hospital and eligible patients were identified from obstetric databases. All medical records, including ultrasound reports, were reviewed and compared with the placental histological findings and both operative and midwifery documentation of the cord insertion. RESULTS Twenty-three women (25 babies) were diagnosed with VP and underwent a caesarean section delivery at a mean gestational age of 36 weeks. The false positive rate in our series was 17% (4/23). CONCLUSIONS Our study highlights the importance of postnatal confirmation of the diagnosis of VP and careful documentation of intraoperative findings of the placenta and cord insertion. We suggest strategies to aid in the accurate diagnosis of VP, thereby improving clinical decision-making and reducing unnecessary intervention.
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Affiliation(s)
- Stephanie La
- Department of Women's and Newborn Health, Westmead Hospital, Sydney, New South Wales, Australia
| | - Sarah J Melov
- Discipline of Obstetrics Gynaecology and Neonatology, Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.,Westmead Institute for Maternal and Fetal Medicine, Westmead Hospital, Sydney, New South Wales, Australia
| | - Roshini Nayyar
- Westmead Institute for Maternal and Fetal Medicine, Westmead Hospital, Sydney, New South Wales, Australia
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Abstract
OBJECTIVE Umbilical cord abnormalities are commonly cited as a cause of stillbirth, but details regarding these stillbirths are rare. Our objective was to characterize stillbirths associated with umbilical cord abnormalities using rigorous criteria and to examine associated risk factors. METHODS The Stillbirth Collaborative Research Network conducted a case-control study of stillbirth and live births from 2006 to 2008. We analyzed stillbirths that underwent complete fetal and placental evaluations and cause of death analysis using the INCODE (Initial Causes of Fetal Death) classification system. Umbilical cord abnormality was defined as cord entrapment (defined as nuchal, body, shoulder cord accompanied by evidence of cord occlusion on pathologic examination); knots, torsions, or strictures with thrombi, or other obstruction by pathologic examination; cord prolapse; vasa previa; and compromised fetal microcirculation, which is defined as a histopathologic finding that represents objective evidence of vascular obstruction and can be used to indirectly confirm umbilical cord abnormalities when suspected as a cause for stillbirth. We compared demographic and clinical factors between women with stillbirths associated with umbilical cord abnormalities and those associated with other causes, as well as with live births. Secondarily, we analyzed the subset of pregnancies with a low umbilical cord index. RESULTS Of 496 stillbirths with complete cause of death analysis by INCODE, 94 (19%, 95% CI 16-23%) were associated with umbilical cord abnormality. Forty-five (48%) had compromised fetal microcirculation, 27 (29%) had cord entrapment, 26 (27%) knots, torsions, or stricture, and five (5%) had cord prolapse. No cases of vasa previa occurred. With few exceptions, maternal characteristics were similar between umbilical cord abnormality stillbirths and non-umbilical cord abnormality stillbirths and between umbilical cord abnormality stillbirths and live births, including among a subanalysis of those with hypo-coiled umbilical cords. CONCLUSION Umbilical cord abnormalities are an important risk factor for stillbirth, accounting for 19% of cases, even when using rigorous criteria. Few specific maternal and clinical characteristics were associated with risk.
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Westcott JM, Simpson S, Chasen S, Vieira L, Stone J, Doulaveris G, Dar P, Bernstein PS, Atallah F, Dolin CD, Roman AS. Prenatally diagnosed vasa previa: association with adverse obstetrical and neonatal outcomes. Am J Obstet Gynecol MFM 2020; 2:100206. [PMID: 33345921 DOI: 10.1016/j.ajogmf.2020.100206] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/27/2020] [Accepted: 08/04/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Vasa previa represents a rare prenatal finding with potentially life-threatening risk to the fetus. OBJECTIVE This study aimed to describe the natural history of prenatally diagnosed vasa previa and evaluate the association between antenatally diagnosed vasa previa and adverse obstetrical and neonatal outcomes. STUDY DESIGN This was a multicenter descriptive and retrospective study of patients diagnosed prenatally with vasa previa on transvaginal ultrasound in the New York City Maternal-Fetal Medicine Research Consortium centers between 2012 and 2018. Outcomes evaluated included persistence of vasa previa at the time of delivery, gestational age at delivery, indications for unplanned unscheduled delivery, and neonatal course. RESULTS A total of 165 pregnancies with vasa previa were included, of which 16 were twin gestations. Forty-three cases (26.1%) were noted to resolve on subsequent ultrasound. Of the remaining 122 cases with persistent vasa previa, 46 (37.7%) required unscheduled delivery. Twin gestations were nearly 3 times as likely to require unscheduled delivery as singleton gestations (73.3% vs 25.2%; P<.001). Most infants (70%) were admitted to the neonatal intensive care unit. There was 1 neonatal death (0.9%) because of complications related to prematurity. CONCLUSION Despite the low neonatal mortality rate with prenatal detection of vasa previa, one-third of patients required unscheduled delivery, and more than half of neonates experienced complications related to prematurity.
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Affiliation(s)
| | | | | | | | - Joanne Stone
- Icahn School of Medicine at Mount Sinai, New York, NY
| | | | - Peer Dar
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY
| | - Peter S Bernstein
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY
| | | | - Cara D Dolin
- New York University Langone Health, New York, NY
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D'Souza R, Villani L, Hall C, Seyoum M, Kingdom J, Krznaric M, Donnolley N, Javid N. Core outcome set for studies on pregnant women with vasa previa (COVasP): a study protocol. BMJ Open 2020; 10:e034018. [PMID: 32690497 PMCID: PMC7371138 DOI: 10.1136/bmjopen-2019-034018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 03/23/2020] [Accepted: 06/10/2020] [Indexed: 01/17/2023] Open
Abstract
INTRODUCTION Vasa previa is a condition where fetal blood vessels run unprotected in the membranes, outside the umbilical cord, and cross the internal opening of the cervix. During rupture of membranes, these vessels can rupture and put the baby at serious risk of severe blood loss and death. Numerous studies are being conducted to improve diagnostic modalities and establish clear management plans to improve pregnancy outcomes. However, the lack of a standardised set of outcomes for studies on vasa previa makes it difficult to compare study findings and draw meaningful conclusions. Through this project, we will be developing a core outcome set for studies on pregnant women with vasa previa (COVasP). METHODS AND ANALYSIS The development of COVasP will involve five steps. The first will be a systematic review, in which we will generate a long list of outcomes based on published studies in pregnancies complicated with vasa previa. The second will involve in-depth interviews with current and former patients, their family members and healthcare providers who care for these patients. This will be followed by a two-round Delphi survey, which will aim to narrow down the long list of outcomes into those considered important by four groups of 'stakeholders': (1) patients, family members and patient advocates/representatives, (2) healthcare providers, (3) researchers, epidemiologists and methodologists and (4) other stakeholders directly or indirectly involved in the management of these pregnancies such as administrators, guideline developers and policymakers. The fourth step will involve a face-to-face consensus meeting using a nominal group approach to establish a finalised core outcome set. The final step will involve measuring and defining the identified outcomes using a combination of systematic reviews and Delphi surveys. ETHICS AND DISSEMINATION This study as well as consent forms for stakeholder participation have received approval from the Mount Sinai Hospital Research Ethics Board (REB number 18-0173-E) on 05 September 2018 and the Human Research Ethics Committee at The University of Technology Sydney, Australia on 30 July 2019 (UTS HREC reference number ETH19-3718). All progress will be documented on the international prospective register of systematic reviews and Core Outcome Measures in Effectiveness Trials databases. REGISTRATION DETAILS: http://www.comet-initiative.org/studies/details/1117.
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Affiliation(s)
- Rohan D'Souza
- Division of Maternal-Fetal Medicine, Department of Obstetrics & Gynaecology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Linda Villani
- University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Chelsea Hall
- Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Meron Seyoum
- Division of Maternal-Fetal Medicine, Department of Obstetrics & Gynaecology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| | - John Kingdom
- Division of Maternal-Fetal Medicine, Department of Obstetrics & Gynaecology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Michael Krznaric
- International Vasa Previa Foundation, Chester, Illinois, United States
| | - Natasha Donnolley
- International Vasa Previa Foundation, Chester, Illinois, United States
- The National Perinatal Epidemiology and Statistics Unit, Centre for Big Data Research in Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Nasrin Javid
- Faculty of Health, University of Technology Sydney, Sydney, New South Wales, Australia
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Buchanan-Hughes A, Bobrowska A, Visintin C, Attilakos G, Marshall J. Velamentous cord insertion: results from a rapid review of incidence, risk factors, adverse outcomes and screening. Syst Rev 2020; 9:147. [PMID: 32576295 PMCID: PMC7313176 DOI: 10.1186/s13643-020-01355-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 04/12/2020] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Velamentous cord insertion (VCI) is an umbilical cord attachment to the membranes surrounding the placenta instead of the central mass. VCI is strongly associated with vasa praevia (VP), where umbilical vessels lie in close proximity to the internal cervical os. VP leaves the vessels vulnerable to rupture, which can lead to fatal fetal exsanguination. Screening for VP using second-trimester transabdominal sonography (TAS) to detect VCI has been proposed. We conducted a rapid review investigating the quality, quantity and direction of evidence available on the epidemiology, screening test accuracy and post-screening management pathways for VCI. METHODS MEDLINE, Embase and the Cochrane Library were searched on 5 July 2016 and again on 11 October 2019, using general search terms for VP and VCI. Only peer-reviewed articles reporting on the epidemiology of VCI, the accuracy of the screening test and/or downstream management pathways for VCI pregnancies were included. Quality and risk of bias of each included study were assessed using pre-specified tools. RESULTS Forty-one relevant publications were identified; all but one were based on non-UK pregnancy cohorts, and most included relatively few VCI cases. The estimated incidence of VCI was 0.4-11% in singleton pregnancies, with higher incidence in twin pregnancies (1.6-40%). VCI incidence was also increased among pregnancies with one or more other risk factors, including in vitro fertilisation pregnancies or nulliparity. VCI incidence among women without any known risk factors was unclear. VCI was associated with adverse perinatal outcomes, most notably pre-term birth and emergency caesarean section in singleton pregnancies, and perinatal mortality in twins; however, associations varied across studies and the increased risk was typically low or moderate compared with pregnancies without VCI. In studies on limited numbers of cases, screening for VCI using TAS had good overall accuracy, driven by high specificity. No studies on post-screening management of VCI were identified. CONCLUSIONS Literature on VCI epidemiology and outcomes is limited and low-quality. The accuracy of second-trimester TAS and the benefits and harms of screening cannot be determined without prospective studies in large cohorts. Modelling studies may indicate the feasibility and value of studying the epidemiology of VCI and the potential impact of detecting VCI as part of a population screening programme for VP.
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Affiliation(s)
| | | | | | - George Attilakos
- Institute for Women’s Health, University College London, London, UK
- Fetal Medicine Unit, University College London Hospitals NHS Foundation Trust, London, UK
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Humphries‐Hart F, Bethune M, Saxton V. Vasa praevia diagnosis in the mid trimester ultrasound. SONOGRAPHY 2020. [DOI: 10.1002/sono.12222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ffion Humphries‐Hart
- Medical Imaging DepartmentThe Mercy Hospital for Women Heidelberg Victoria Australia
- Specialist Imaging for Women Ivanhoe Victoria Australia
| | - Michael Bethune
- Medical Imaging DepartmentThe Mercy Hospital for Women Heidelberg Victoria Australia
- Specialist Women's Ultrasound Box Hill Victoria Australia
| | - Virginia Saxton
- Medical Imaging DepartmentThe Mercy Hospital for Women Heidelberg Victoria Australia
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Zhang W, Geris S, Beta J, Ramadan G, Nicolaides KH, Akolekar R. Prevention of stillbirth: impact of two-stage screening for vasa previa. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2020; 55:605-612. [PMID: 31840871 DOI: 10.1002/uog.21953] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/02/2019] [Accepted: 12/03/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVES To examine the feasibility and effectiveness of a two-stage ultrasound screening strategy for detection of vasa previa and to estimate the potential impact of screening on prevention of stillbirth. METHODS This was a retrospective study of data from prospective screening for vasa previa in singleton pregnancies, undertaken at the Fetal Medicine Unit at Medway Maritime Hospital, UK, between 2012 and 2018. Women booked for prenatal care and delivery in our hospital had routine ultrasound examinations at 11-13 and 20-22 weeks' gestation. Those with velamentous cord insertion at the inferior part of the placenta at the first-trimester scan and those with low-lying placenta at the second-trimester scan were classified as high-risk for vasa previa and had transvaginal sonography searching specifically for vasa previa, at the time of the 20-22-week scan. The management and outcome of cases with suspected vasa previa is described. We excluded cases of miscarriage or termination at < 24 weeks' gestation. RESULTS The study population of 26 830 singleton pregnancies included 21 (0.08%; 1 in 1278) with vasa previa. In all cases of vasa previa, the diagnosis was made at the 20-22-week scan and confirmed postnatally by gross and histological examination of the placenta. At the 11-13-week scan, cord insertion was classified as central in 25 071 (93.4%) cases, marginal in 1680 (6.3%), and velamentous in 79 (0.3%). In 16 (76.2%) of the 21 cases of vasa previa, cord insertion at the first-trimester scan was classified as velamentous at the inferior part of the placenta, in two cases (9.5%) as marginal and in three cases (14.3%) as central. The 21 cases of vasa previa were managed on an outpatient basis with serial scans for measurement of cervical length and elective Cesarean section at 34 weeks' gestation; all babies were liveborn but there was one neonatal death. In the study population, there were 83 stillbirths, none of which had evidence of vasa previa on postnatal examination. On the assumption that, if we had not diagnosed prenatally all 21 cases of vasa previa in our population, half of these cases would have resulted in stillbirth, then the potential impact of screening is prevention of 10.6% (10/94) of stillbirths. CONCLUSION A two-stage strategy of screening for vasa previa can be incorporated into routine clinical practice, and such a strategy could potentially reduce the rate of stillbirth. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- W Zhang
- Fetal Medicine Unit, Medway NHS Foundation Trust, Gillingham, UK
| | - S Geris
- Fetal Medicine Unit, Medway NHS Foundation Trust, Gillingham, UK
| | - J Beta
- Fetal Medicine Unit, Medway NHS Foundation Trust, Gillingham, UK
| | - G Ramadan
- Oliver Fisher Neonatal Unit, Medway NHS Foundation Trust, Gillingham, UK
| | - K H Nicolaides
- Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK
| | - R Akolekar
- Fetal Medicine Unit, Medway NHS Foundation Trust, Gillingham, UK
- Institute of Medical Sciences, Canterbury Christ Church University, Kent, UK
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Villani LA, Pavalagantharajah S, D'Souza R. Variations in reported outcomes in studies on vasa previa: a systematic review. Am J Obstet Gynecol MFM 2020; 2:100116. [PMID: 33345867 DOI: 10.1016/j.ajogmf.2020.100116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 03/14/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To evaluate reported outcomes of published studies on the diagnosis and management of vasa previa in pregnancy. MATERIALS AND METHODS Databases such as MEDLINE, Embase, Cochrane, PubMed, and ClinicalTrials.gov were searched up to March 2018 for all published studies on vasa previa using combinations of the following medical subject headings and key words: vasa previa, placenta previa, low-lying placenta, succenturiate lobe or placenta, bilobed or bilobate placenta, and velamentous insertion. All original human research that described maternal, obstetric, placental, fetal or neonatal outcomes relating to pregnancies with vasa previa were included for analysis. Title and abstract screening and data extraction was conducted independently and in duplicate by 2 reviewers for all studies until total agreement for eligibility was achieved. Data extraction was also conducted in duplicate in approximately 50% of studies reviewed. RESULTS A total of 160 published studies (1004 pregnancies) were included. There was a wide range of reported outcomes, many of which were sparingly reported. The most commonly reported maternal outcomes included mode of delivery, presence of antepartum hemorrhage, time of diagnosis, and rupture of membranes. The presence of known risk factors for vasa previa such as a low-lying placenta, succenturiate or bilobed placenta, and (velamentous) cord insertion was incorrectly reported as "outcomes" in many studies. The most commonly reported fetal/neonatal outcomes included fetal heart rate, gestational age at delivery, birthweight, Apgar score, presence of neonatal anemia, cord blood gas measurements, need for blood transfusion, and death. Of note, only 3 studies reported outcomes related to life impact, maternal social and emotional functioning, perceived delivery of care, or resource utilization. CONCLUSION Despite the profound effect the diagnosis of vasa previa has on pregnant women, families, and healthcare systems, studies on vasa previa seldom report outcomes related to life impact and resource utilization. There is a need for the development of a core outcome set-a minimum standard set of outcomes deemed important by pregnant women and other stakeholders involved in their care-to standardize outcome reporting in future studies on vasa previa.
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Affiliation(s)
- Linda A Villani
- Division of Maternal and Fetal Medicine, Department of Obstetrics and Gynaecology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada; University of Utah School of Medicine, Salt Lake City, UT
| | - Sureka Pavalagantharajah
- Division of Maternal and Fetal Medicine, Department of Obstetrics and Gynaecology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada; McMaster University, Hamilton, Ontario, Canada
| | - Rohan D'Souza
- Division of Maternal and Fetal Medicine, Department of Obstetrics and Gynaecology, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada; Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada.
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Wax JR, Pinette MG. Imaging the Placental Cord Insertion: Just Do It. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2020; 39:811-815. [PMID: 31674049 DOI: 10.1002/jum.15143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/04/2019] [Accepted: 09/08/2019] [Indexed: 06/10/2023]
Affiliation(s)
- Joseph R Wax
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Maine Medical Center, Portland, Maine, USA
| | - Michael G Pinette
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Maine Medical Center, Portland, Maine, USA
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Abstract
Importance Vasa previa represents an uncommon and life-threatening condition for the fetus. The prenatal identification of the condition may improve the outcome. Objective The aim of this study was to synthesize and compare published evidence of 4 national guidelines on diagnosis and management of vasa previa. Evidence Acquisition A descriptive review of 4 recently published national guidelines on vasa previa was conducted: Royal College of Obstetricians and Gynaecologists on "Vasa Praevia: Diagnosis and Management," Society for Maternal-Fetal Medicine on "Diagnosis and Management of Vasa Previa," Society of Obstetricians and Gynaecologists of Canada on "Guidelines for the Management of Vasa Previa," and the Royal Australian and New Zealand College of Obstetricians and Gynaecologists on "Vasa Praevia." These guidelines were compared regarding recommendations on diagnosis and management, while the quality of evidence was also reviewed based on each method of reporting. Results There were many similar recommendations in the compared guidelines regarding the diagnosis and management of vasa previa. Early prenatal diagnosis using ultrasound and color Doppler imaging, hospitalization or management as outpatients, and cesarean delivery in a tertiary center with experienced clinicians are the main recommendations. Conclusions Evidence-based guidelines may increase the awareness of the diagnosis and management of vasa previa among health care professionals and lead to more favorable perinatal outcomes.
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Vasa Praevia: A Nightmare to Good Outcome. JOURNAL OF FETAL MEDICINE 2020. [DOI: 10.1007/s40556-019-00237-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ferrero Viñas A, Cortejoso Hernández J, de Miguel Manso S, Suárez Mansilla P, Álvarez Colomo C, González Martín J. Vasa previa, diagnóstico prenatal y manejo obstétrico. CLINICA E INVESTIGACION EN GINECOLOGIA Y OBSTETRICIA 2020. [DOI: 10.1016/j.gine.2019.06.002] [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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Vasa previa: time to make a difference. Am J Obstet Gynecol 2019; 221:539-541. [PMID: 31787156 DOI: 10.1016/j.ajog.2019.08.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 08/09/2019] [Accepted: 08/21/2019] [Indexed: 11/23/2022]
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Erfani H, Haeri S, Shainker SA, Saad AF, Ruano R, Dunn TN, Rezaei A, Aalipour S, Nassr AA, Shamshirsaz AA, Vaughn M, Lindsley W, Spiel MH, Shazly SA, Ibirogba ER, Clark SL, Saade GR, Belfort MA, Shamshirsaz AA. Vasa previa: a multicenter retrospective cohort study. Am J Obstet Gynecol 2019; 221:644.e1-644.e5. [PMID: 31201807 DOI: 10.1016/j.ajog.2019.06.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/15/2019] [Accepted: 06/05/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVE The objective of the study was to describe the characteristics and outcomes of patients with antenatal diagnosis of vasa previa and evaluate the predictive factors of resolution in a contemporary large, multicenter data set. STUDY DESIGN This was a retrospective multicenter cohort study of all antenatally diagnosed cases of vasa previa, identified via ultrasound and electronic medical record, between January 2011 and July 2018 in 5 US centers. Records were abstracted to obtain variables at diagnosis, throughout pregnancy, and outcomes, including maternal and neonatal variables. Data were reported as median [range] or n (percentage). Descriptive statistics, receiver-operating characteristics, and logistic regression analysis were used as appropriate. RESULTS One hundred thirty-six cases of vasa previa were identified in 5 centers during the study period, 19 (14%) of which resolved spontaneously at median estimated gestational age of 27 weeks [19-34]. All subjects with unresolved vasa previa underwent cesarean delivery at a median estimated gestational age of 34 weeks [27-39] with the median estimated blood loss of 800 mL [250-2000]. Rates for vaginal bleeding, preterm labor, premature rupture of membrane, and need for blood product transfusion were not different between the resolved and unresolved group (P = NS). The odds ratio for resolution in those with the estimated gestational age of less than 24 weeks at the time of diagnosis was 7.9 (95% confidence interval, 2.1-29.4) after adjustment for confounding variables. CONCLUSION Our data suggest that outcomes in antenatally diagnosed cases of vasa previa are excellent. Furthermore, our data report a higher chance of resolution when the condition is diagnosed before 24 weeks of gestation.
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Barinov SV, Tirskaya YI, Shamina IV, Ledovskikh IO, Atamanenko OJ. Placental blood flow and pregnancy outcomes in women with abnormal placental localization and absence of placental "migration". J Matern Fetal Neonatal Med 2019; 34:3496-3502. [PMID: 31736394 DOI: 10.1080/14767058.2019.1685973] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Aim: We investigated the arcuate artery blood flow in the region of the abnormally localized placenta in women who had undergone insertion of an obstetric pessary and were receiving micronized progesterone.Materials and methods: The study included 120 pregnant women with high perinatal risks and abnormal placental localization. The patients were randomized to receive the Arabin's pessary and vaginal micronized progesterone (Group A, n = 60) or vaginal micronized progesterone only (Group B, n = 60). Randomization was carried based on the order of hospital admission: odd patient numbers were allocated to Group A and even numbers to Group B. Patients underwent a series of ultrasound scans to evaluate the placental migration and presence of abnormal placental attachment. Depending on the results of the scan, study participants were divided into the following groups: (1) patients without placental migration: A1 (n = 23) and B1 (n = 42); and (2) patients with placental migration: A2 (n = 37) and B2 (n = 18). Women in subgroups A1 and B1 were further divided into the subgroups based on the presence of abnormal placental attachment: A1x (n = 5) and B1x (n = 12) with abnormal placental attachment; and A1O (n = 18) and B1O (n = 30) without the abnormal placental attachment.Conclusion: In patients with abnormal placental attachment, the resistance of blood flow in the arcuate arteries was significantly higher than in those with normal placental attachment. A significant increase in the blood flow resistance occurred between 24 and 28 weeks of gestation. The combined use of the obstetric pessary and vaginal micronized progesterone in women with abnormal placental localization helped maintain the resistivity index at low levels and reduce the rate of abnormal placental attachment by 1.3-fold (OR 0.694 (95% CI: 0.21-2.29)).
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Affiliation(s)
- S V Barinov
- Federal State Budget Institution of Higher Education, "Omsk State Medical University" of the Russian Ministry of Health, Omsk, Russia
| | - Y I Tirskaya
- Federal State Budget Institution of Higher Education, "Omsk State Medical University" of the Russian Ministry of Health, Omsk, Russia
| | - I V Shamina
- Federal State Budget Institution of Higher Education, "Omsk State Medical University" of the Russian Ministry of Health, Omsk, Russia
| | - I O Ledovskikh
- Perinatal Centre, Budget Healthcare Omsk Region Institution, Regional Clinical Hospital, Omsk, Russia
| | - O J Atamanenko
- Perinatal Centre, Budget Healthcare Omsk Region Institution, Regional Clinical Hospital, Omsk, Russia
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Derisbourg S, Boulay A, Lamy C, Barlow P, Van Rysselberge M, Thomas D, Rozenberg S, Daelemans C. First trimester ultrasound prediction of velamentous cord insertions: a prospective study. J Matern Fetal Neonatal Med 2019; 34:2642-2648. [PMID: 31558066 DOI: 10.1080/14767058.2019.1670797] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
INTRODUCTION The marginal and velamentous cord insertions complicate around 8% of pregnancies and are at higher risk of adverse perinatal outcomes. Their visualisation seems to decrease with advancing gestational age. Our aim was to analyse whether an umbilical cord insertion in the lower third of the uterus during the first trimester could predict abnormal cord insertions later in pregnancy. METHODS This was a prospective multicentre study in two hospitals. During the first trimester, the cord insertions were inspected as well as their location (lower third of the uterus or not). Finally, all cord insertions were described at delivery. RESULTS During the study period the cord insertion was described in 1620 patients of which 87.7% had a normal cord insertion, 11.9% (n = 192) a low cord insertion, and in 3.8% the insertion could not be situated. We find that 4.7% of those who have a low-lying cord insertion versus 0.7% in the normal cord insertion group during the first trimester will have a velamentous cord insertion subsequently (OR = 6.67; 95% CI = 2.67-16.63). CONCLUSION The detection of a low lying umbilical cord insertion during the first-trimester ultrasound can help to predict an abnormal cord insertion at delivery particularly a velamentous cord insertion.
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Affiliation(s)
- Sara Derisbourg
- Department of Obstetrics and Gynecology, Hôpitaux Iris Sud Etterbeek-Ixelles, Bruxelles, Belgium.,Department of Obstetrics and Gynecology, Hôpital Universitaire Saint Pierre, Bruxelles, Belgium
| | - Amélie Boulay
- Department of Obstetrics and Gynecology, Hôpital Universitaire Saint Pierre, Bruxelles, Belgium
| | - Clotilde Lamy
- Department of Obstetrics and Gynecology, Hôpitaux Iris Sud Etterbeek-Ixelles, Bruxelles, Belgium
| | - Patricia Barlow
- Department of Obstetrics and Gynecology, Hôpital Universitaire Saint Pierre, Bruxelles, Belgium
| | - Michel Van Rysselberge
- Department of Obstetrics and Gynecology, Hôpital Universitaire Saint Pierre, Bruxelles, Belgium
| | - Dominique Thomas
- Department of Obstetrics and Gynecology, Hôpitaux Iris Sud Etterbeek-Ixelles, Bruxelles, Belgium
| | - Serge Rozenberg
- Department of Obstetrics and Gynecology, Hôpital Universitaire Saint Pierre, Bruxelles, Belgium
| | - Caroline Daelemans
- Department of Obstetrics and Gynecology, Hôpital Universitaire Saint Pierre, Bruxelles, Belgium
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Abstract
PURPOSE OF REVIEW Vasa previa is a rare disorder of placentation associated with a high rate of perinatal morbidity and mortality when undetected before delivery. We have evaluated the recent evidence for prenatal diagnosis and management of vasa previa. RECENT FINDINGS Around 85% of cases of vasa previa have one or more identifiable risk factors including in-vitro fertilization, multiple gestations, bilobed, succenturiate or low-lying placentas, and velamentous cord insertion. The development of standardized prenatal targeted scanning protocols may improve perinatal outcomes. There is no clear consensus on the optimal surveillance strategy including the need for hospitalization, timing of corticosteroids administration and the value of transvaginal cervical length measurements. Outpatient management is possible if there is no evidence of cervical shortening on ultrasound and there are no symptoms of bleeding or uterine contractions. Recent national guidelines and expert reviews have recommended scheduled cesarean section of all asymptomatic women presenting with vasa previa between 34 and 36 weeks' gestation. SUMMARY Prenatal diagnosis of vasa previa is pivotal to prevent intrapartum fetal death. Although there is insufficient evidence to support the universal mid-gestation ultrasound screening for vasa previa, recent evidence indicates the need for standardized prenatal targeted screening protocols of pregnancies at high-risk of vasa previa.
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Humphries‐Hart F, Davies B, Bethune M, Saxton V. Detection of vasa praevia in the mid‐trimester ultrasound by Australian sonographers. SONOGRAPHY 2019. [DOI: 10.1002/sono.12191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ffion Humphries‐Hart
- Medical Imaging DepartmentThe Mercy Hospital for Women Heidelberg Victoria Australia
- Specialist Imaging for Women Ivanhoe Victoria Australia
| | - Braidy Davies
- Medical Imaging DepartmentThe Mercy Hospital for Women Heidelberg Victoria Australia
- Specialist Imaging for Women Ivanhoe Victoria Australia
| | - Michael Bethune
- Medical Imaging DepartmentThe Mercy Hospital for Women Heidelberg Victoria Australia
- Specialist Women's Ultrasound Box Hill Victoria Australia
| | - Virginia Saxton
- Medical Imaging DepartmentThe Mercy Hospital for Women Heidelberg Victoria Australia
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Safi N, Sullivan E, Li Z, Brown M, Hague W, McDonald S, Peek MJ, Makris A, O’Brien AM, Jesudason S. Serious kidney disease in pregnancy: an Australian national cohort study protocol. BMC Nephrol 2019; 20:230. [PMID: 31238917 PMCID: PMC6593486 DOI: 10.1186/s12882-019-1393-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 05/23/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Maternal kidney disease (acute kidney injury (AKI), advanced chronic kidney disease (CKD), dependence on dialysis or a kidney transplant) has a substantial impact on pregnancy, with risks of significant perinatal morbidity. These pregnancies require integrated multidisciplinary care to manage a complex and often challenging clinical situation. The ability to deliver optimal care is currently hindered by a lack of understanding around prevalence, management and outcomes in Australia. This study aims to expand an evidence base to improve clinical care of women with serious kidney impairment in pregnancy. METHODS/DESIGN The "Kidney Disease in Pregnancy Study" is a national prospective cohort study of women with stage 3b-5 CKD (including dialysis and transplant) and severe AKI in pregnancy, using the Australasian Maternity Outcomes Surveillance System (AMOSS). AMOSS incorporates Australian maternity units with > 50 births/year (n = 260), capturing approximately 96% of Australian births. We will identify women meeting the inclusion criteria who give birth in Australia between 1st August 2017 and 31st July 2018. Case identification will occur via monthly review of all births in Australian AMOSS sites and prospective notification to AMOSS via renal or obstetric clinics. AMOSS data collectors will capture key clinical data via a web-based data collection tool. The data collected will focus on the prevalence, medical and obstetric clinical care, and maternal and fetal outcomes of these high-risk pregnancies. DISCUSSION This study will increase awareness of the issue of serious renal impairment in pregnancy through engagement of 260 maternity units and obstetric and renal healthcare providers across the country. The study results will provide an evidence base for pre-pregnancy counselling and development of models of optimal clinical care, clinical guideline and policy development in Australia. Understanding current practices, gaps in care and areas for intervention will improve the care of women with serious renal impairment, women with high-risk pregnancies, their babies and their families.
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Affiliation(s)
- Nadom Safi
- Faculty of Health, University of Technology Sydney, 235 Jones Street Ultimo, Sydney, NSW 2007 Australia
| | - Elizabeth Sullivan
- Faculty of Health, University of Technology Sydney, 235 Jones Street Ultimo, Sydney, NSW 2007 Australia
- Faculty of Health and Medicine, University of Newcastle, 130 University Drive, Callaghan, 2308 NSW Australia
| | - Zhuoyang Li
- Faculty of Health, University of Technology Sydney, 235 Jones Street Ultimo, Sydney, NSW 2007 Australia
| | - Mark Brown
- Department Renal Medicine and Medicine, St. George Hospital and University of New South Wales, Kogarah, Sydney, Australia
| | - William Hague
- Robinson Research Institute, University of Adelaide, Women’s and Children’s Hospital, Adelaide, 5006 SA Australia
| | - Stephen McDonald
- ANZDATA Registry, South Australia Health and Medical Research Institute, Adelaide, Australia
- Adelaide Medical School, University of Adelaide, Adelaide, SA Australia
- Central and Northern Adelaide Renal and Transplantation Service (CNARTS), Royal Adelaide Hospital, Adelaide, SA Australia
| | - Michael J. Peek
- The Canberra Hospital, The Australian National University, Bdg 11, Level 2, Yamba Dve, Garran, Canberra, 2605 ACT Australia
| | - Angela Makris
- University of Western Sydney and the University of New South Wales, Sydney, Australia
| | - Angela M. O’Brien
- Faculty of Health, University of Technology Sydney, 235 Jones Street Ultimo, Sydney, NSW 2007 Australia
| | - Shilpanjali Jesudason
- Adelaide Medical School, University of Adelaide, Adelaide, SA Australia
- Central and Northern Adelaide Renal and Transplantation Service (CNARTS), Royal Adelaide Hospital, Adelaide, SA Australia
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Hayata E, Nakata M, Oji A, Takano M, Nagasaki S, Morita M. Sonographic diagnosis of vasa previa using four-dimensional spatiotemporal image correlation. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2019; 53:701-702. [PMID: 29808626 DOI: 10.1002/uog.19100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 05/22/2018] [Indexed: 06/08/2023]
Affiliation(s)
- E Hayata
- Department of Obstetrics and Gynecology, Toho University School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - M Nakata
- Department of Obstetrics and Gynecology, Toho University School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - A Oji
- Department of Obstetrics and Gynecology, Toho University School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - M Takano
- Department of Obstetrics and Gynecology, Toho University School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - S Nagasaki
- Department of Obstetrics and Gynecology, Toho University School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
| | - M Morita
- Department of Obstetrics and Gynecology, Toho University School of Medicine, 6-11-1 Omori-nishi, Ota-ku, Tokyo, 143-8541, Japan
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