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Low lying placenta

J Kim, Y Kim
No abstract text is available yet for this article.
September 2016: Ultrasound in Obstetrics & Gynecology
R E Bohîlțea, M M Cîrstoiu, A I Ciuvica, O Munteanu, O Bodean, D Voicu, C A Ionescu
A velamentous umbilical cord is characterized by membranous umbilical vessels at the placental insertion site that are prone to compression and rupture, especially when they are located in the membranes covering the cervical os (vasa praevia). The velamentous insertion of the umbilical cord, with a reported incidence of 1% in singleton pregnancies and 15% in monochorionic twin gestations, has been associated with obstetric complications: fetal growth restriction, prematurity, congenital anomalies, low Apgar scores, fetal bleeding with acute fetal distress and placental retention...
April 2016: Journal of Medicine and Life
Atsushi Komatsu, Shiro Kozuma, Shiro Yoshida, Hironobu Hyodo, Takahiro Yamashita, Yoshimasa Kamei, Tomoyuki Fujii, Yuji Taketani
The perinatal mortality rate of vasa previa is high if it is not prenatally diagnosed. In this report, a case of vasa previa diagnosed prenatally is presented. Antepartum hemorrhage at 24 weeks of gestation prompted a close investigation of the uterine cervix, internal os, and placenta. We detected a low-lying bilobed placenta with umbilical cord insertion in the lower uterine segment. Furthermore, one of the connecting vessels of the bilobed placenta passed directly above the internal os. Vasa previa was suspected and confirmed with color Doppler and MRI...
January 2011: Journal of Medical Ultrasonics
Atsuko Taga, Yukiyasu Sato, Chieko Sakae, Yumiko Satake, Ikuko Emoto, Shunsuke Maruyama, Hiroko Mise, Tomoko Kim
OBJECTIVE: To assess the applicability of trial of labor in cases of low-lying placenta. METHODS: In this observational cohort study, we collected data from the women with low-lying placenta delivered at our hospital between April 2012 and December 2015. Low-lying placenta was diagnosed when the length from the placental lowest edge to the internal cervical os (placenta-os distance) was 0-20 mm at 36 gestational weeks. Planned mode of delivery for each case was determined by patient's preference...
May 16, 2016: Journal of Maternal-fetal & Neonatal Medicine
Junichi Hasegawa, Ikuno Kawabata, Yoshiharu Takeda, Hiroaki Aoki, Takehiko Fukami, Atsushi Tajima, Kei Miyakoshi, Katsufumi Otsuki, Norio Shinozuka, Yoshio Matsuda, Mitsutoshi Iwashita, Takashi Okai, Akihito Nakai
OBJECTIVE: To clarify whether distinguishing between the uterine isthmus and cervix can improve the accuracy of diagnosing placenta previa at term. METHODS: A multicenter prospective observational study was conducted among pregnant women with suspected placenta previa at 20-24 weeks' gestation. Subjects were divided into the open isthmus group and closed isthmus group. The accuracy of diagnosing placenta previa at term was compared between the 2 groups. RESULTS: We screened 9,341 patients, and 53 (0...
May 3, 2016: Fetal Diagnosis and Therapy
S Matsuzaki, K Yoshino, K Mimura, T Kanagawa, T Kimura
PURPOSE: To present a case report on the successful management of a low-lying placenta and aplastic anemia. Aplastic anemia is a rare but serious disorder that is often characterized by severe pancytopenia. Because of the rarity of aplastic anemia, a pregnancy complicated by it is rarely encountered by obstetricians. Moreover, placenta previa (low-lying placenta) complicated by aplastic anemia has not been previously reported. MATERIALS AND METHODS: The authors present the first reported case of placenta previa with aplastic anemia in a patient who had undergone a previous cesarean delivery...
2016: Clinical and Experimental Obstetrics & Gynecology
Laura van der Krogt, Natasha L Hezelgrave, Paul T Seed, Andrew H Shennan
OBJECTIVE: To determine the effect of a low lying placenta on the concentration of quantitative fetal fibronectin (qfFN) in the cervicovaginal fluid (CVF), and predictive accuracy for spontaneous preterm birth in asymptomatic high-risk women (18(+0)-24(+0) weeks gestation). METHODS: Median concentrations of qfFN were compared in women who had a low lying placenta, covering the cervical os (n = 61) to matched controls (n= 61) without a low lying placenta. Proportions of women with raised qfFN concentrations (>10ng/ml), and false positive and negative rates (FPR and FNR) for spontaneous preterm delivery were also compared...
March 29, 2016: Journal of Maternal-fetal & Neonatal Medicine
Sayori Nagai, Hiroaki Kobayashi, Tomomi Nagata, Sayuri Hiwatashi, Toshihiko Kawamura, Daisaku Yokomine, Yuji Orita, Toshimichi Oki, Mitsuhiro Yoshinaga, Tsutomu Douchi
Intrauterine globe-shaped metreurynter tamponade has been used for some time to treat massive postpartum hemorrhage (PPH). More recently, the Bakri balloon has come into use to treat PPH. It is made of silicon, possesses a drainage lumen, and has a sausage-like spindle shape. The aim of the present study was to investigate the clinical usefulness of Bakri balloon tamponade for massive PPH. Subjects in the present study comprised 5 patients with uterine atony, 3 with placenta previa, and 2 with low-lying placenta...
2016: Kurume Medical Journal
Chikako Oi, Yasuo Hori, Hiroaki Sano, Yoshihiro Yamama, Keiji Nakatani
Amniotic fluid embolism (AFE) is a disorder with a high mortality rate. We present a case of AFE with cardiac arrest during the cesarean section who recovered sequela. A 28-year-old woman was diagnosed as low lying placenta and planned to undergo cesarean section in 38th gestational week. She had atypical genital bleeding in 32nd gestational weeks and she received emergency cesarean section under general anesthesia. After expulsion of her fetus, she lost many blood. We suspected obstetric DIC and started therapy immediately, but cardiac arrest occurred suddenly...
November 2015: Masui. the Japanese Journal of Anesthesiology
Martha W F Rac, Elysia Moschos, C Edward Wells, Donald D McIntire, Jodi S Dashe, Diane M Twickler
OBJECTIVES: The purpose of this study was to evaluate the association between first-trimester sonographic findings and morbidly adherent placenta at delivery. METHODS: We conducted a retrospective review of all first-trimester sonographic examinations from pregnancies that underwent third-trimester sonography for placenta previa or low-lying placenta between September 1997 and October 2011. Only women with a prior cesarean delivery were included. Transabdominal and transvaginal images from these first-trimester studies were reviewed for the following sonographic parameters: distance from the inferior border of the gestational sac to the external cervical os, location of the decidua basalis, presence of anechoic areas, uterine-bladder interface irregularity, and smallest anterior myometrial thickness...
February 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
Setu Rathod, Sunil Kumar Samal
Cornual pregnancy is uncommon among ectopic pregnancies. A diagnosis of cornual pregnancy remains challenging, and rupture of a cornual pregnancy causes catastrophic consequence due to massive bleeding. In very rare circumstances, cornual pregnancies can result in a viable fetus. We report a case of a 24-year-old primigravida who presented to us with complaints of decrease fetal movements at 37(+5) weeks. Ultrasound revealed a single live intrauterine fetus with anterior low lying placenta with severe oligohydramnios (amniotic fluid index = 1...
September 2015: International Journal of Applied and Basic Medical Research
Shunji Suzuki, Masahiko Kato
BACKGROUND: We examined the clinical significance of pregnancies complicated by velamentous cord insertion (VCI) associated with other umbilical cord/placental abnormalities. METHODS: Data were collected from 168 deliveries complicated by VCI and from 16,797 unaffected controls. All placentae were screened identically by trained staff. In this study, we examined the presence of excessively long umbilical cord (longer than 70 cm), vasa previa, single umbilical artery, circumvallate placenta, succenturiate placenta, lobed placenta, placenta previa, low lying placenta and placenta accrete as the other umbilical cord/placental abnormalities...
November 2015: Journal of Clinical Medicine Research
Sevan A Vahanian, Jessica A Lavery, Cande V Ananth, Anthony Vintzileos
We sought to evaluate the extent of the association between placental implantation abnormalities (PIA) and preterm delivery in singleton gestations. We conducted a systematic review of English-language articles published from 1980 onward using PubMed, MEDLINE, EMBASE, CINAHL, LILACS, and Google Scholar, and by identifying studies cited in the references of published articles. Search terms were PIA defined as ≥ 1 of the following: placenta previa, placenta accreta, vasa previa, and velamentous cord insertion...
October 2015: American Journal of Obstetrics and Gynecology
Salahiddine Saghir, Jaouad Kouach, Aomar Agadr
Vasa previa is a rare but clinically important obstetrical complication that can be associated with a low-lying placenta or placenta previa. We aim to present one case of vasa previa diagnosed during the placenta examination after the caesarean indicated for triple uterus scar. A 26-year-old female was referred to our hospital at 30 weeks of gestation to provide a scheduled caesarean. Trans-abdominal ultrasound was performed; the placenta was positioned in the posterior side of the fundus. Fetal growth was found to be appropriate for gestational age...
2015: Pan African Medical Journal
Takeshi Nojiri, Toshiyuki Yoshizato, Ayako Sanui, Ryota Araki, Hirotsugu Obama, Kyoko Shirota, Shingo Miyamoto
OBJECTIVE: To validate a new parameter of the distance between the external os (EO) and placental edge (PE) to diagnose a low-lying placenta in the third trimester. MATERIALS AND METHODS: The study participants included 94 uncomplicated singleton pregnant women with cephalic presentation. These women were cared for in our hospital in 1998-2011, with a posterior low-lying placenta, which was diagnosed as the distance between the internal os (IO) and a PE of 0-3.0 cm at 34-36 weeks' gestation...
August 2015: Taiwanese Journal of Obstetrics & Gynecology
Martina Kollmann, Jakob Gaulhofer, Uwe Lang, Philipp Klaritsch
OBJECTIVE: Aim of this study was to evaluate the incidence, potential risk factors and the respective outcomes of pregnancies with placenta praevia. METHODS: Data were prospectively collected from women diagnosed with placenta praevia in 10 Austrian hospitals in in the province of Styria between 1993 and 2012. We analyzed the incidence, potential risk factors and the respective outcomes of pregnancies with placenta praevia. Differences between women with major placenta praevia (complete or partial placenta praevia) and minor placenta praevia (marginal placenta praevia or low-lying placenta) were evaluated...
2016: Journal of Maternal-fetal & Neonatal Medicine
Alison C Wortman, Diane M Twickler, Donald D McIntire, Jodi S Dashe
OBJECTIVE: To evaluate pregnancy outcomes with low-lying placenta according to the distance from placenta to cervical os. METHODS: Retrospective cohort study of singleton pregnancies with low-lying placenta (placenta edge within 20 mm of internal os on transvaginal sonography) delivered at our hospital from 2002 to 2012, excluding suspected placenta accreta and vasa previa. Vaginal delivery was offered in the absence of another indication for cesarean. Outcomes were stratified according to placenta-os distance ≤10 mm and 11-20 mm...
2016: Journal of Maternal-fetal & Neonatal Medicine
Masato Kinugasa, Hanako Tamai, Mayu Miyake, Takashi Shimizu
While uterine balloon tamponade is an effective modality for control of postpartum hemorrhage, the reported success rates have ranged from the level of 60% to the level of 80%. In unsuccessful cases, more invasive interventions are needed, including hysterectomy as a last resort. We developed a modified tamponade method and applied it to two cases of refractory postpartum hemorrhage after vaginal delivery. The first case was accompanied by uterine myoma and low-lying placenta. After an induced delivery, the patient had excessive hemorrhage due to uterine atony...
2015: Case Reports in Obstetrics and Gynecology
Fırat Tülek, Alper Kahraman, Salih Taşkın, Esra Özkavukçu, Feride Söylemez
OBJECTIVE: To assess the possible changes in first trimester screening test parameters in pregnancies complicated with placenta previa and to determine whether there is an association between hyperemesis gravidarum and placenta previa. MATERIAL AND METHODS: A total of 131 singleton spontaneously conceived pregnancies that were complicated by placenta previa and delivered between May 2006 and May 2013 were evaluated from birth charts. Ninety patients without placenta previa were selected amongst patients who delivered within the same period of time as the control group...
2014: Journal of the Turkish German Gynecological Association
J Karagiozova, St Ivanov, A Masseva, B Frandeva, I Ibriam
Previous Caesarean section (SC) is considered to be established predisposing factor for abnormal placentation. In this study we examined whether prior SC is a risk factor for low laying placenta. Retrospective documentation was studied of 171 pregnant women after a SC (test group) and of 150 pregnant women after a normal birth (control), and cases of hysterectomy after giving birth to five years. Pathological lying placenta have established at 1.34% in the test group versus 0.67% in controls (p - 0.058), i...
2014: Akusherstvo i Ginekologii︠a︡
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