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Vasa Previa

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7 papers 100 to 500 followers
By Chad Klauser Maternal Fetal Medicine physician in NYC
Rachel G Sinkey, Anthony O Odibo, Jodi S Dashe
Vasa previa occurs when fetal blood vessels that are unprotected by the umbilical cord or placenta run through the amniotic membranes and traverse the cervix. If membranes rupture, these vessels may rupture, with resultant fetal hemorrhage, exsanguination, or even death. Prenatal diagnosis of vasa previa by ultrasound scans is approximately 98%. Approximately 28% of prenatally diagnosed cases result in emergent preterm delivery. Management of prenatally diagnosed vasa previa includes antenatal corticosteroids between 28-32 weeks of gestation, considerations for preterm hospitalization at 30-34 weeks of gestation, and scheduled delivery at 34-37 weeks of gestation...
November 2015: American Journal of Obstetrics and Gynecology
Kara B Markham, Richard W O'Shaughnessy
No abstract text is available yet for this article.
March 26, 2011: Lancet
Barrett K Robinson, William A Grobman
OBJECTIVE: To compare strategies for the timing of delivery in patients with ultrasonographic evidence of vasa previa. METHODS: A decision tree was designed comparing 11 strategies for delivery timing in a patient with vasa previa. The strategies ranged from a scheduled delivery at 32, 33, 34, 35, 36, 37, 38, or 39 weeks of gestation to a scheduled delivery at 36, 37, or 38 weeks of gestation only after amniocentesis confirmation of fetal lung maturity. Outcomes factored into the model included perinatal mortality, infant mortality, respiratory distress syndrome, mental retardation, and cerebral palsy...
March 2011: Obstetrics and Gynecology
Yinka Oyelese, John C Smulian
Placenta previa, placenta accreta, and vasa previa are important causes of bleeding in the second half of pregnancy and in labor. Risk factors for placenta previa include prior cesarean delivery, pregnancy termination, intrauterine surgery, smoking, multifetal gestation, increasing parity, and maternal age. The diagnostic modality of choice for placenta previa is transvaginal ultrasonography, and women with a complete placenta previa should be delivered by cesarean. Small studies suggest that, when the placenta to cervical os distance is greater than 2 cm, women may safely have a vaginal delivery...
April 2006: Obstetrics and Gynecology
Andrei Rebarber, Cara Dolin, Nathan S Fox, Chad K Klauser, Daniel H Saltzman, Ashley S Roman
OBJECTIVES: The purpose of this study was to estimate the prevalence and persistence rate of vasa previa in at-risk pregnancies using a standardized screening protocol. METHODS: We conducted a descriptive study of patients with a diagnosis of vasa previa from a single ultrasound unit between June 2005 and June 2012. Vasa previa was defined as a fetal vessel within 2 cm of the internal cervical os on transvaginal sonography. Screening for vasa previa using transvaginal sonography with color flow mapping was performed routinely in the following situations: resolved placenta previa, prior pregnancy with vasa previa, velamentous insertion of the cord in the lower uterine segment, placenta succenturiata in the lower uterine segment, and twin gestations...
January 2014: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
Kiran Prabhaker Rao, Victoria Belogolovkin, Jerome Yankowitz, Joseph A Spinnato
Placenta previa, placenta accreta, and vasa previa cause significant maternal and perinatal morbidity and mortality. With the increasing incidence of both cesarean delivery and pregnancies using assisted reproductive technology, these 3 conditions are becoming more common. Advances in grayscale and Doppler ultrasound have facilitated prenatal diagnosis of abnormal placentation to allow the development of multidisciplinary management plans to achieve the best outcomes for mother and baby. We present a comprehensive review of the literature on abnormal placentation including an evidence-based approach to diagnosis and management...
August 2012: Obstetrical & Gynecological Survey
Richard Bronsteen, Amy Whitten, Mamtha Balasubramanian, Wesley Lee, Robert Lorenz, Mark Redman, Luis Goncalves, David Seubert, Sam Bauer, Christine Comstock
OBJECTIVE: To review experience with diagnosis, clinical associations, and outcomes of vasa previa in a single institution. METHODS: This was a retrospective review of all identified vasa previa cases from January 1 1990, to June 30, 2010. RESULTS: Sixty cases of vasa previa were identified (53 singletons, seven twins); 56 cases were diagnosed before delivery. An abnormal cord insertion or abnormal placental location was present in 55 cases...
August 2013: Obstetrics and Gynecology
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