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Doppler color in pregnancy

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https://www.readbyqxmd.com/read/27935931/caesarian-scar-pregnancy-a-diagnostic-dilemma
#1
P Gupta, A Huria, D Kaur, R Mehra
Caesarean scar pregnancy is one of the rarest forms of ectopic pregnancy. Transvaginal ultrasound and color flow Doppler provides a high diagnostic accuracy. A delay in diagnosis and treatment can lead to uterine rupture, major hemorrhage, hysterectomy and serious maternal morbidity and mortality. Early diagnosis can offer treatment options of avoiding uterine rupture and hemorrhage, thus preserving the uterus and future fertility. Primary health care provider should know about this rare entity, because if diagnosed timely, and referral to specialized centre is done without delay will definitely save maternal morbidity and mortality...
April 2016: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/27777190/-correlation-analysis-of-fetal-middle-cerebral-artery-peak-systolic-velocity-cardiothoracic-ratio-and-crown-rump-length-in-early-pregnancy
#2
Xu-Jie Deng, Cui-Hua Chen, Yu-Wen Qiu, Shu-Fang Xiao, Shu-Xin Liao, Mei Zhong, Fang Yang
OBJECTIVE: To explore the pattern of variations in middle cerebral artery peak systolic velocity (MCA PSV) and cardiothoracic ratio (CTR) during early pregnancy, establish their reference ranges and explore their correlation with the crown-rump length (CRL). METHODS: A total of 522 pregnant women with normal findings in antenatal examinations underwent routine color Doppler ultrasound examination to collect the data of MCA PSV, CTR and CRL. The reference ranges of MCA PSV and CTR for different CRL levels were established, and the correlation of MCA PSV and CTR with CRL was analyzed...
October 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/27756534/antenatal-fetal-surveillance-assessment-of-the-afv
#3
Dawn S Hughes, Everett F Magann
The evaluation of amniotic fluid volume (AFV) is an established part of the antenatal surveillance of pregnancies at risk for an adverse pregnancy outcome. The two most commonly used ultrasound techniques to estimate AFV are the amniotic fluid index (AFI) and the single deepest pocket (SDP). Four studies have defined normal AFVs, and although their normal volumes have similarities, there are also differences primarily due to the statistical methodology used in each study. Dye-determined AFV correlates with ultrasound estimates for normal fluid volumes but correlates poorly for oligohydramnios and polyhydramnios...
September 16, 2016: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/27741366/the-diverse-outcome-of-early-prenatal-diagnosis-of-pulmonary-stenosis
#4
Moshe Bronshtein, Zeev Blumenfeld, Asaad Choury, Ayala Gover
OBJECTIVES: To assess the natural history and outcome of fetal pulmonary stenosis [PS] detected at 14 to 16 weeks gestation. METHODS: This is a retrospective study, in the years 2004-2015, with serial follow up during pregnancy. Patients referred for complete early fetal ultrasound including all fetal systems and a fetal echocardiogram. Ninety seven percent of the women were low risk, and 3% had risk factors such as maternal type 1 diabetes mellitus, exposure to teratogenic drugs or anomalies in previous pregnancies or in other family members...
October 14, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27696434/sonographic-diagnosis-of-partial-versus-complete-molar-pregnancy-a-reappraisal
#5
Julia L Savage, Katherine E Maturen, Erika L Mowers, Katherine B Pasque, Ashish P Wasnik, Vanessa K Dalton, Jason D Bell
PURPOSE: To assess the prospective sonographic diagnosis of molar pregnancy and compare sonographic features of complete versus partial molar pregnancy. METHODS: This institutional review board--approved retrospective chart review conducted between 2001 and 2011 identified 70 women with a histopathologic diagnosis of molar pregnancy and with available sonograms. Clinical data, images, and reports were reviewed, and features enumerated by radiologists blinded to the final diagnosis...
October 3, 2016: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/27668197/maternal-uterine-artery-doppler-in-the-first-and-second-trimesters-as-screening-method-for-hypertensive-disorders-and-adverse-perinatal-outcomes-in-low-risk-pregnancies
#6
Rosiane Maciel Scandiuzzi, Caio Antonio de Campos Prado, Edward Araujo Júnior, Geraldo Duarte, Silvana Maria Quintana, Fabrício da Silva Costa, Gabriele Tonni, Ricardo de Carvalho Cavalli, Alessandra Cristina Marcolin
OBJECTIVE: To assess the maternal demographic characteristics and uterine artery (UA) Doppler parameters at first and second trimesters of pregnancy as predictors for hypertensive disorders (HDs) and adverse perinatal outcomes. METHODS: This prospective cohort study comprised 162 singleton low-risk women undergoing routine antenatal care. The left and right UA were assessed by color and pulsed Doppler and the mean pulsatility and resistance indices as well as the presence of a bilateral protodiastolic notch were recorded at 11 to 14 and 20 to 24 weeks' gestation...
September 2016: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/27661402/placental-implantation-abnormalities-a-modern-approach
#7
Sevan A Vahanian, Anthony M Vintzileos
PURPOSE OF REVIEW: Placental implantation abnormalities (PIAs) comprise a large group of disorders associated with significant maternal, fetal, and neonatal morbidity. RECENT FINDINGS: Risk factors include prior uterine surgery/myometrial scarring and the presence of placenta previa with or without prior cesarean delivery. Newly identified risk factors include previous prelabor cesarean delivery and previous postpartum hemorrhage. PIAs contribute substantially to preterm birth with prematurity rates ranging from 38 to 82%...
December 2016: Current Opinion in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27643757/fetal-pulmonary-venous-blood-flow-velocities-in-a-normal-population-and-new-calculated-reference-values
#8
Franz Bahlmann, Ralph Gallinat, Monica Schmidt-Fittschen, Ammar Al Naimi, Iris Reinhard, Arne Willruth
OBJECTIVE: The aim of this study is to establish new Doppler reference values in a population with normal pulmonary veins during different phases of the fetal cardiac cycle for maximum blood flow velocities during ventricular systole (S), early ventricular diastole (D), atrial contraction (a), intensity-weighted mean velocity (Vmean) and the indices derived from these parameters [(S - a)/D] and [(S - a)/Vmean]. METHODS: The pulsed-wave color advanced dynamic flow Doppler technique was used in a prospective cross-sectional study of 365 low-risk pregnancies between 18 and 41 completed gestational weeks...
November 2016: Prenatal Diagnosis
https://www.readbyqxmd.com/read/27617440/two-cases-of-true-uterine-artery-aneurysms-diagnosed-during-pregnancy
#9
Jacob Mørup Schlütter, Gry Johansen, Rikke Bek Helmig, Olav Bjørn Petersen
We report 2 cases of true uterine artery aneurysms diagnosed during pregnancy. Both cases presented with nonspecific symptoms such as urethral obstruction, minimal vaginal bleeding and lower abdominal pain in the 2nd trimester. Both aneurysms were diagnosed by color Doppler ultrasound. In the first case labor was induced at 37 + 4 weeks of gestation. However, due to sudden fetal distress and maternal abdominal pain, an emergency Caesarean section was performed during labor, and 3 liters of intra-peritoneal blood were encountered upon laparotomy, secondary to a ruptured uterine artery aneurysm...
September 13, 2016: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/27613429/congenital-renal-arteriovenous-fistula-during-the-first-trimester-diagnosed-with-ultrasonography
#10
Mengyun Yao, Qiuyan Zhang, Jing Wang, Feixiang Xiang, Cheng Yu, Qing Lv, Mingxing Xie, Yanrong Zhang
A case of congenital renal arteriovenous fistula (AVF) complicating pregnancy with gross hematuria was managed successfully by superselective embolization with metallic coils. The patient was in the first trimester of her pregnancy at 12 weeks of gestation. The AVF was detected by color Doppler sonography and confirmed by renal arteriography. Because of its easy accessibility and absence of irradiation, ultrasound is the first choice for pregnant patients. Color Doppler ultrasound is effective in diagnosing AVF, and it is also helpful in the long-term followup after treatment...
September 9, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27514305/vein-of-galen-aneurysmal-malformation-vgam-in-the-fetus-a-retrospective-analysis-of-perinatal-prognostic-indicators-in-a-two-center-series-of-49-cases
#11
D Paladini, B Deloison, A Rossi, G E Chalouhi, C Gandolfo, P Sonigo, S Buratti, A E Millischer, G Tuo, Y Ville, A Pistorio, A Cama, L J Salomon
OBJECTIVE: Vein of Galen aneurysmal malformation (VGAM) is a rare anomaly in which an adequate perinatal management may warrant good neurological outcome. However, most fetal series are too scant to allow reliable statistical assessment of poor prognostic factors. Aim of this paper is to assess, in a two-center series of 49 cases, the prognostic value of several prenatal variables. The primary endpoint of the analysis is to identify possible prenatal indicators of poor outcome, in terms of mortality and cerebral disabilities...
August 12, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27495883/prophylactic-bilateral-internal-iliac-artery-balloon-occlusion-in-the-management-of-placenta-accreta-a-36-month-review
#12
Y L Tan, H Suharjono, N L J Lau, H Y Voon
BACKGROUND: The contemporary obstetrician is increasingly put to the test by rising numbers of pregnancies with morbidly adherent placenta. This study illustrates our experience with prophylactic bilateral internal iliac artery occlusion as part of its management. METHODS: Between January 2011 to January 2014, 13 consecutive patients received the intervention prior to scheduled caesarean delivery for placenta accreta. All cases were diagnosed by ultrasonography, color Doppler imaging and supplemented with MRI where necessary...
June 2016: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/27492394/three-dimensional-color-power-doppler-sonography-and-hd-live-silhouette-mode-for-diagnosis-of-molar-pregnancy
#13
Mohamed Ahmed Mostafa AboEllail, Mari Ishimura, Suraphan Sajapala, Kenta Yamamoto, Tamaki Tanaka, Emiko Nitta, Kenji Kanenishi, Toshiyuki Hata
We present our experience of using new 3-dimensional color/power Doppler sonography (HDliveFlow; GE Healthcare Japan, Tokyo, Japan) with the HD live silhouette mode for diagnosing complete molar pregnancy in the first trimester and differentiating it from missed abortion with hydropic degeneration. In the case of a complete mole, color Doppler sonography showed numerous vesicles without blood vessels, whereas HDliveFlow with the HD live silhouette mode clearly depicted these vesicles forming a mass with the clear demarcation of its edges and showed no blood flow inside the mass...
September 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27476254/-multidose-treatment-of-methotrexate-in-cornual-ectopic-pregnancy
#14
M Pantoja Garrido, M N Cabezas-Palacios, S Tato-Varela
BACKROUND: Ectopic pregnancy represents a common entity when the differential diagnosis of first trimester pathologies is performed. Extratubal location, nonetheless, is an in unfrequent situation that delays and difficults the diagnoses. CASE REPORT: 41-year-old women who goes to clinic for a pregnancy test, which proved positive done. During normal ultrasonographic we observed attached with endometrial 8 mm thick, without gestational sac inside, no free liquid in the bottom of the pouch of Douglas...
May 2016: Ginecología y Obstetricia de México
https://www.readbyqxmd.com/read/27453740/velamentous-insertion-of-umbilical-cord-with-vasa-praevia-case-series-and-literature-review
#15
REVIEW
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
https://www.readbyqxmd.com/read/27405919/investigations-of-mammary-and-uterine-blood-flow-in-relation-to-milk-yield-postpartum-disease-and-pregnancy-result-in-dairy-cows
#16
H Berger, M Lietzau, A Tichy, K Herzog
The objective was to determine the blood flow variables in the uterine arteries and the pudendoepigastric trunks, which supply the mammary gland, and relate these variables to the occurrence of uterine disease, milk yield, and pregnancy result. To achieve this, 119 multiparous German Holstein cows were examined using color Doppler sonography once during the dry period and on Days 7, 14, 28, 42, 56, 66, 76, 86, and 96 postpartum (pp). Cows with retained fetal membranes or metritis had a higher blood flow volume and time-averaged maximum velocity and a lower pulsatility index in the uterine arteries on Days 7, 14 and 28 pp (P < 0...
November 2016: Theriogenology
https://www.readbyqxmd.com/read/27382223/uterine-arteriovenous-malformation-case-series-and-literature-review
#17
Narayanan Lalitha, Panicker Seetha, R Shanmugasundaram, G Rajendiran
BACKGROUND: Uterine AV malformation is a rare cause of torrential post-abortal hemorrhage, which can present with varying grades of severity. Diagnosis requires a high degree of suspicion and is done with ultrasound and Doppler. CASE SERIES: In our institution, during the period 2008-2013, five cases of symptomatic uterine AVMs have been reported. All of them were in the reproductive age group (22-36 years), presenting with a history of miscarriage or termination of pregnancy for which curettage was done...
August 2016: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/27382217/predictive-value-of-cerebroplacental-ratio-in-detection-of-perinatal-outcome-in-high-risk-pregnancies
#18
Rehana Najam, Sarika Gupta, Shalini
OBJECTIVE: To assess the predictive value of cerebroplacental ratio (i.e., S/D ratio of middle cerebral artery to S/D ratio of Umbilical artery) in detection of perinatal outcome in high-risk pregnancies. MATERIAL AND METHOD: This retrospective study was conducted on 150 patients between 28 and 40 weeks of gestation (25 low risk and 125 high risk) who attended OPD and indoor wards of Teerthanker Mahaveer medical college and research center, Moradabad. All patients had serial color Doppler ultrasounds done after taking informed consent which was repeated at 2 weeks interval, and data were collected with regard to perinatal outcome...
August 2016: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/27363399/identification-of-fetal-cardiac-anatomy-and-hemodynamics-a-novel-enhanced-screening-protocol
#19
Ying Zhang, Ai-Lu Cai, Wei-Dong Ren, Ya-Jun Guo, Dong-Yu Zhang, Wei Sun, Yu Wang, Lei Wang, Yue Qin, Li-Ping Huang
BACKGROUND: Prenatal cardiac screening is of great importance as it contributes to appropriate neonatal management and helps parents to make a decision regarding their pregnancy. The aim of our study was to evaluate the efficiency of a newly proposed screening protocol in the detection of fetal congenital heart disease (CHD). METHODS: This was a prospective study. A total of 52 cases of confirmed CHD fetuses and 248 cases of randomly selected normal fetuses were included in the study...
2016: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/27262885/pregnancy-prediction-on-the-day-of-embryo-transfer-day-7-and-day-14-by-measuring-luteal-blood-flow-in-dairy-cows
#20
Tomomi Kanazawa, Motohide Seki, Keiki Ishiyama, Tomoaki Kubo, Yoshiyuki Kaneda, Minoru Sakaguchi, Yoshiaki Izaike, Toru Takahashi
This study aimed to assess the suitability of luteal blood flow analyses measured by color Doppler ultrasonography (CDUS), to predict pregnancy at pre- and post-embryo transfer (ET) in dairy cows, and to compare with the established criterion like luteal size and plasma progesterone (P4) concentrations. Lactating Holstein cows (n = 65) with spontaneous (n = 34) or synchronized estrus (n = 31) were examined. Cows with a CL greater than or equal to 20 mm in diameter (n = 58) received embryo transfer on Day 7 (Day 0 = estrus)...
October 1, 2016: Theriogenology
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