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Ultrasound in labor

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https://www.readbyqxmd.com/read/28889776/risk-of-spontaneous-preterm-birth-in-ivf-conceived-twin-pregnancies
#1
Gabriele Saccone, Fabrizio Zullo, Amanda Roman, Andrew Ward, Giuseppe Maruotti, Pasquale Martinelli, Vincenzo Berghella
OBJECTIVE: To compare the mean transvaginal ultrasound (TVU) cervical length (CL) at midtrimester in screening for preterm birth in in vitro (IVF)-conceived twin pregnancies versus spontaneously-conceived twin pregnancies. METHODS: This was a retrospective cohort study. Potential study subjects were identified at the time of a routine second trimester fetal ultrasound exam at 18 0/7 - 23 6/7-week gestation. All women with twin diamniotic pregnancies screened with a singlet TVU CL for this trial were included...
September 10, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28882058/role-of-acoustic-radiation-force-impulse-and-shear-wave-velocity-in-prediction-of-preterm-birth-a-prospective-study
#2
Arjit Agarwal, Shubhra Agarwal, Shruti Chandak
Background Preterm birth is one of the important causes of neonatal morbidity where we rely on subjective criteria such as modified Bishop's scoring and contemporary sonographic measurement of cervical length. Acoustic radiation force impulse (ARFI) is a technological advancement in elastography that can be employed in prediction of cervical softening and preterm labor. Purpose To evaluate the role of ARFI technique and shear wave velocity (SWV) estimates as a predictor of preterm birth and its comparison with other clinical and sono-elastographic measures...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28876429/mueller-hillis-maneuver-and-angle-of-progression-are-they-correlated
#3
Sofia Mendes, Rita Silva, Inês Martins, Susana Santo, Nuno Clode
Objective: Mueller-Hillis maneuver (MHM) and angle of progression (AOP) measured by transperineal ultrasound have been used to assess fetal head descent during the second stage of labor. We aimed to assess whether AOP correlates with MHM in the second stage of labor. Method: A prospective observational study including women with singleton pregnancy in the second stage of labor was performed. The AOP was measured immediately after the Mueller-Hillis maneuver. A receiver-operating characteristics (ROC) curve analysis was performed to determine the best discriminatory AOP cut-off for the identification of a positive MHM...
June 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28858898/the-accuracy-of-a-handheld-ultrasound-device-for-neuraxial-depth-and-landmark-assessment-a-prospective-cohort-trial
#4
Katherine M Seligman, Carolyn F Weiniger, Brendan Carvalho
This study investigated the accuracy of a wireless handheld ultrasound with pattern recognition software that recognizes lumbar spine bony landmarks and measures depth to epidural space (Accuro, Rivanna Medical, Charlottesville, VA) (AU). AU measurements to epidural space were compared to Tuohy needle depth to epidural space (depth to loss of resistance at epidural placement). Data from 47 women requesting labor epidural analgesia were analyzed. The mean difference between depth to epidural space measured by AU versus needle depth was -0...
August 30, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28854840/should-delivery-timing-for-repeat-cesarean-be-reconsidered-based-on-dating-criteria
#5
Kathleen F Brookfield, Sarah S Osmundson, Aaron B Caughey
PURPOSE: We sought to examine if the method of pregnancy dating at five increasing term gestational ages is associated with increasing neonatal morbidity. MATERIALS AND METHODS: A cohort of women who underwent elective repeat cesarean delivery at > 37 weeks' gestation were identified from the NICHD MFMU Network registry. We excluded women who were in labor, those carrying a fetus with a congenital anomaly, those with a nonreassuring fetal heart tracing, and those with preeclampsia, preexisting chronic hypertension or diabetes...
August 30, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28819985/prediction-of-labor-outcome-using-serial-transperineal-ultrasound-in-the-first-stage-of-labor
#6
Chung Ming Chor, Liona Chiu Yee Poon, Tak Yeung Leung
OBJECTIVE: To evaluate the feasibility of predicting labor outcome using serial transperineal ultrasound (TPU) in the early active phase of labor. METHODS: This is a single center prospective observational study in a tertiary obstetrics unit in Hong Kong. Nulliparous women carrying singleton pregnancy at the onset of active phase of labor were recruited. Serial 3D volumes by TPU were acquired and then repeated after 1 and 2 hours, which were subsequently analyzed for fetal head symphyseal distance (HSD), angle of progression (AoP) and fetal head progression distance (PD)...
August 18, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28805616/prenatal-diagnosis-and-molecular-cytogenetic-characterization-of-mosaicism-for-a-small-supernumerary-marker-chromosome-derived-from-chromosome-16
#7
Chih-Ping Chen, Tsang-Ming Ko, Schu-Rern Chern, Peih-Shan Wu, Shin-Wen Chen, Shih-Ting Lai, Chien-Wen Yang, Chen-Wen Pan, Wayseen Wang
OBJECTIVE: We present prenatal diagnosis and molecular cytogenetic characterization of a small supernumerary marker chromosome (sSMC) derived from chromosome 16. CASE REPORT: A 28-year-old woman underwent amniocentesis at 17 weeks of gestation because of abnormal maternal serum screening for Down syndrome. Amniocentesis revealed a karyotype of 47,XY,+mar[5]/46,XY[9]. Parental karyotypes were normal. Prenatal ultrasound findings were unremarkable. Array comparative genomic hybridization (aCGH) analysis of cultured amniocytes revealed a de novo 16% gene dosage increase of 16q11...
August 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28777457/a-novel-low-cost-ultrasound-guided-pericardiocentesis-simulation-model-demonstration-of-feasibility
#8
Ashley Sullivan, Lyudmila Khait, Mark Favot
Pericardiocentesis is a rare life-saving procedure for patients with cardiac tamponade. Due to the infrequency of this procedure, simulation models are often used for training. Commercial models are generally expensive. Proposed homemade models offer a lower-cost alternative but can be labor and time intensive. The purpose of this study was to determine the feasibility of a limited use, low-cost ultrasound-guided pericardiocentesis model as a training tool for emergency physicians. Our model proved to be a practical, easily implemented, and acceptable model for training emergency physicians, including residents and students, in ultrasound-guided pericardiocentesis...
August 4, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28743440/the-use-of-intrapartum-ultrasound-to-diagnose-malpositions-and-cephalic-malpresentations
#9
REVIEW
Federica Bellussi, Tullio Ghi, Aly Youssef, Ginevra Salsi, Francesca Giorgetta, Dila Parma, Giuliana Simonazzi, Gianluigi Pilu
Fetal malpositions and cephalic malpresentations are well-recognized causes of failure to progress in labor. They frequently require operative delivery, and are associated with an increased probability of fetal and maternal complications. Traditional obstetrics emphasizes the role of digital examinations, but recent studies demonstrated that this approach is inaccurate and intrapartum ultrasound is far more precise. The objective of this review is to summarize the current body of literature and provide recommendations to identify malpositions and cephalic malpresentations with ultrasound...
July 22, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28743210/fetal-middle-cerebral-artery-doppler-in-late-term-pregnancy-a-predicting-factor-for-failed-induction-of-labor
#10
Silvia Vannuccini, Michela Torricelli, Caterina Bocchi, Filiberto M Severi, Mariarosaria Di Tommaso, Felice Petraglia
PURPOSE: To study the role of fetal middle cerebral artery (MCA) Doppler evaluated prior to induction of labor in late-term pregnancies, in order to build an ultrasound-based predictive model for failed induction. MATERIALS AND METHODS: A prospective cohort study on 250 nulliparous women carrying singleton late-term pregnancies was conducted. Prior to induction, each patient underwent to an ultrasound evaluation for fetal MCA Doppler. Additional ultrasound parameters such as cervical length (CL), membranes thickness, amniotic fluid index, placental location, and estimated fetal weight (EFW) were collected...
July 25, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28735176/reduced-short-term-variation-following-antenatal-administration-of-betamethasone-is-reduced-fetal-size-a-predisposing-factor
#11
Tullio Ghi, Andrea Dall'Asta, Gabriele Saccone, Federica Bellussi, Tiziana Frusca, Pasquale Martinelli, Gianluigi Pilu, Nicola Rizzo
OBJECTIVE: To assess the association between fetal size and the incidence of reduced short-term variability (STV) following bethametasone administration for fetal lung maturity. STUDY DESIGN: This was a retrospective, multicenter, cohort study conducted in two Tertiary University Units. Only uncomplicated singleton pregnancies admitted for threatened preterm labor between 26 and 34 weeks and submitted to betamethasone for fetal lung maturity were included. Delivery occurring within 72h from betamethasone administration represented criteria for exclusion...
July 10, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28734718/shoulder-activity-level-and-progression-of-degenerative-cuff-disease
#12
Jay D Keener, Nathan W Skelley, Georgia Stobbs-Cucchi, Karen Steger-May, Aaron M Chamberlain, Alex W Aleem, Robert H Brophy
BACKGROUND: This study prospectively examined the relationship of direct and indirect measures of shoulder activity with the risks of tear progression and pain development in subjects with an asymptomatic degenerative rotator cuff tear. METHODS: A cohort of asymptomatic degenerative rotator cuff tears was prospectively monitored annually, documenting tear size progression with ultrasound imaging and potential shoulder pain development. Shoulder activity level, self-reported occupational and physical demand level, and hand dominance were compared with risks of tear enlargement and future pain development...
July 19, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28723764/increased-nuchal-translucency-in-fetuses-with-a-normal-karyotype-diagnosis-and-management-an-observational-study
#13
Demetra Socolov, Razvan Socolov, Vlad Eusebiu Gorduza, Tudor Butureanu, Ruxandra Stanculescu, Alexandru Carauleanu, Ioana Pavaleanu
The use of nuchal translucency (NT) in 1992 by Nicolaides et al was a major breakthrough in screening for chromosomal aneuploidies at the end of the first trimester. However, pathological conditions other than chromosomal aneuploidies are also associated with increased NT, which can also be detected in normal fetuses. This study sought to evaluate the causes of this ultrasound sign in a group of patients from Iasi, Romania.During the decade-long study period, there were 71 certified cases involving increased NT; the patients in these cases underwent diagnostic amniocentesis and karyotyping...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28715801/fetal-urine-production-rate-in-preterm-premature-rupture-of-membranes-is-associated-with-adverse-neonatal-outcome-a-pilot-study
#14
Tehila Avitan, Lior Drukker, Hadass Pri-Chen, Ron Rabinowitz, Nurit Algur, Michael S Schimmel, Letizia Schreiber, Tali Bdolah-Abram, Arnon Samueloff, Sorina Grisaru-Granovsky
AIM: In this study, we evaluate the associations between fetal urinary production rate (FUPR), measured by ultrasound, and adverse neonatal outcome in women with preterm premature rupture of membranes (PPROM). METHODS: We conducted a prospective pilot cohort of singleton pregnancies complicated by PPROM occurring at gestational week 24 or later managed until spontaneous labor (after 48 h of admission), chorioamnionitis, or induction by protocol at 35 + 0 weeks. FUPR was evaluated by 2D sonography at admission (corrected for gestational age)...
July 18, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/28653359/ultrasound-assessment-of-gastric-content-in-the-immediate-postpartum-period-a-prospective-observational-descriptive-study
#15
F Vial, N Hime, J Feugeas, N Thilly, P Guerci, H Bouaziz
INTRODUCTION: Pulmonary aspiration of gastric contents in pregnant women undergoing general anesthesia or sedation/analgesia in the peripartum period is a feared complication in obstetric anesthesia. We assessed the changes in antral cross-sectional area (CSA) with ultrasonography in laboring women and in the immediate postpartum period. PATIENTS AND METHODS: In an observational study in a university-affiliated maternity, gastric ultrasonography examinations were performed in non-consecutive laboring women, after epidural analgesia insertion and after childbirth...
June 26, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28643665/sonographic-landmarks-to-differentiate-false-labor-and-early-true-labor-as-a-possible-new-application-of-ultrasound-in-labor-ward
#16
A Bouzid, M Kehila, H Trabelsi, H S Abouda, R Ben Hmid, M B Chanoufi
OBJECTIVE: To evaluate discrimination of clinical parameters and ultrasound examination to differentiate "false labor" and "true labor". METHODS: In a prospective study during a period of 6 months, a total of 178 patients in term (37-41 weeks) consulting our obstetric unit for uterine contraction, were enrolled. Patients were examined separately by a midwife and a resident and separated into "true labor group" and "false labor group". The clinical characteristics of true versus false labor patients were compared...
April 2017: Journal of gynecology obstetrics and human reproduction
https://www.readbyqxmd.com/read/28636237/microperforate-hymen-presenting-with-incomplete-abortion-a-case-report
#17
Maya Padhi, Priyadarshini Tripathy, Asutosh Sahu
A 20-year-old patient with 3 months of amenorrhea presented in the labor room with bleeding per vaginum and having experienced lower abdominal pain for 2 h. She had a history of difficult intercourse and prolonged menstrual flow. Inspection revealed a bleeding point over an obstructing membrane at the level of the vaginal introitus. Subsequent vaginal examination confirmed the diagnosis of microperforate hymen. Her urine pregnancy test was positive and an ultrasound examination revealed the presence of retained products of conception in the endometrial cavity...
June 21, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28629247/obstetric-practice-patterns-in-pregnancies-complicated-by-fetal-trisomy-13-or-18
#18
Sarah K Dotters-Katz, Marcela C Smid, Cora Mcelwain, Jeffrey A Kuller, Jay Schulkin
PURPOSE: Describe practice patterns among obstetrician/gynecologists (OB/GYNs) when caring for women with pregnancy complicated by fetal trisomy 13(T13) or 18(T18), and compare these between maternal-fetal-medicine (MFM) and non-MFM providers. MATERIALS AND METHODS: We conducted an electronic survey using the American College of Obstetricians and Gynecologists database. Using simple statistics, we describe demographics and practice patterns among respondents, and compare those of MFM practitioners with non-MFM providers...
June 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28627262/a-longitudinal-study-investigating-cervical-changes-during-labor-using-a-wireless-ultrasound-device
#19
Juyoung Kim, Sukyoung Kim, Seungjoo Jeon, Sunyoung Jung
PURPOSE: Cervical assessment during digital vaginal examination (DVE) includes assessing cervical dilatation, effacement, position, and consistency. Only cervical dilatation during labor has been previously researched. We investigated cervical changes, including cervical dilatation and effacement, using a wireless ultrasound device. MATERIALS AND METHODS: This was a longitudinal study investigating cervical changes during labor using a wireless ultrasound device...
June 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28620153/premature-labor-and-neonatal-septicemia-caused-by-capnocytophaga-ochracea
#20
Abdullah A Alhifany, Thamer A Almangour, Deanne E Tabb, David H Levine
BACKGROUND Capnocytophaga ochracea is a gram-negative anaerobic organism commonly found in human oral flora. It is characteristically sensitive to beta-lactams and resistant to aminoglycosides. CASE REPORT A 23-year-old woman presented with lower abdominal pain and was admitted for premature labor at 24-weeks of gestation. At presentation, the cervix was closed and the membrane was intact; however, contractions continued, the membrane subsequently ruptured before receiving any steroids or magnesium, and the mother gave birth to a 540-gram female baby...
June 16, 2017: American Journal of Case Reports
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