keyword
MENU ▼
Read by QxMD icon Read
search

cervix length

keyword
https://www.readbyqxmd.com/read/29134627/the-evolution-of-genital-shape-variation-in-female-cetaceans
#1
Dara N Orbach, Brandon Hedrick, Bernd Würsig, Sarah L Mesnick, Patricia Lr Brennan
Male genital diversification is likely the result of sexual selection. Female genital diversification may also result from sexual selection, although it is less well studied and understood. Female genitalia are complex among whales, dolphins, and porpoises, especially compared to other vertebrates. The evolutionary factors affecting the diversity of vaginal complexity could include ontogeny, allometry, phylogeny, sexual selection, and natural selection. We quantified shape variation in female genitalia using 2-D geometric morphometric analysis, and validated the application of this method to study soft tissues...
November 14, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/29108444/outcomes-after-periviable-ultrasound-indicated-cerclage
#2
Daphnie Drassinower, Elizabeth Coviello, Helain J Landy, Cynthia Gyamfi-Bannerman, Annette Perez-Delboy, Alexander M Friedman
BACKGROUND: Cerclage placed for a sonographically short cervix has been shown to reduce the risk of preterm delivery in women with a history of prior preterm birth. While short cervix is traditionally placed before viability, the threshold gestational age at which viability is achieved continues to decrease, and, as a result, a larger subset of women may be ineligible to receive this potentially beneficial procedure. OBJECTIVE: To evaluate the association between obstetric outcomes and perioperative complications after placement of an ultrasound-indicated cerclage at periviability compared to placement in the previable period...
November 6, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29055173/safety-and-efficacy-of-the-cervical-pessary-combined-with-vaginal-progesterone-for-the-prevention-of-spontaneous-preterm-birth
#3
Georgios Daskalakis, Dimitrios Zacharakis, Marianna Theodora, Panagiotis Antsaklis, Nikolaos Papantoniou, Dimitris Loutradis, Aris Antsaklis
INTRODUCTION: The aim of this study was to evaluate the safety and efficacy of the combined treatment of cervical pessary and endovaginal progesterone for the prevention of spontaneous preterm birth (SPB) in women with a short cervical length (CL) between 20 and 24 weeks of gestation. MATERIALS AND METHODS: This is a prospective study of women with a singleton pregnancy and a sonographically detected mid-trimester CL ≤25 mm. The primary outcome measure was spontaneous delivery before 34 weeks (238 days) of gestation...
October 21, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/29044684/evaluation-of-the-cervix-after-cervical-conization-by-transvaginal-elastography
#4
Meng Xie, Xuyin Zhang, Meng Yu, Wenping Wang, Keqin Hua
OBJECTIVES: The purpose of this study was to investigate the stiffness of the cervix after the loop electrosurgical excision procedure (LEEP) by transvaginal elastography and its potential ability to predict future pregnancy. METHODS: A retrospective study included patients of reproductive age who underwent LEEP for cervical high-grade squamous intraepithelial lesions on the basis of colposcopic findings and who desired fertility. The characteristics on conventional transvaginal ultrasonography and elastography before and 6 months after LEEP were reviewed and analyzed...
October 16, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28915136/laparoscopic-mesh-less-cervicosacropexy-for-uterovaginal-prolapse
#5
Renato Seracchioli, Diego Raimondo, Alessandro Arena, Giulia Gava, Clara Parmeggiani, Valentina Martelli, Elisa Moro, Margherita Zanello, Roberto Paradisi, Mohamed Mabrouk
OBJECTIVES: This study aimed to evaluate surgical and clinical outcomes of laparoscopic mesh-less cervicosacropexy for the treatment of uterovaginal prolapse. METHODS: This single institutional review board-approved prospective cohort study enrolled 46 consecutive, sexually active symptomatic women requiring surgical correction of uterovaginal prolapse, from July 2013 to March 2016. After supracervical laparoscopic hysterectomy, the cervix was suspended to the anterior longitudinal ligament of the sacral promontory through a continuous suture with plication and shortening of the right uterosacral ligament...
September 14, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28913836/female-reproductive-system-morphology-of-crab-eating-fox-cerdocyon-thous-and-cryopreservation-of-genetic-material-for-animal-germplasm-bank-enrichment
#6
L C Machado, K C S Roballo, F S Cury, C E Ambrósio
The sprawl of the urbanization and road network process without building ecological corridors contributes to the high mortality rates and a threat to the population decline of wild species such as the crab-eating fox. A strategy for the ex situ conservation is the study of the reproductive biology of the species and cryopreservation of their genetic heritage through the formation of an animal germplasm bank. This research is in accordance with the principles adopted by Brazilian College of Animal Experimentation...
September 15, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/28901007/pharmacological-and-mechanical-interventions-for-labour-induction-in-outpatient-settings
#7
REVIEW
Joshua P Vogel, Alfred O Osoti, Anthony J Kelly, Stefania Livio, Jane E Norman, Zarko Alfirevic
BACKGROUND: Induction of labour is carried out for a variety of indications and using a range of methods. For women at low risk of pregnancy complications, some methods of induction of labour or cervical ripening may be suitable for use in outpatient settings. OBJECTIVES: To examine pharmacological and mechanical interventions to induce labour or ripen the cervix in outpatient settings in terms of effectiveness, maternal satisfaction, healthcare costs and, where information is available, safety...
September 13, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28882058/role-of-acoustic-radiation-force-impulse-and-shear-wave-velocity-in-prediction-of-preterm-birth-a-prospective-study
#8
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/28870155/pessary-or-progesterone-to-prevent-preterm-delivery-in-women-with-short-cervical-length-the-quadruple-p-randomised-controlled-trial
#9
Maud D van Zijl, Bouchra Koullali, Christiana A Naaktgeboren, Ewoud Schuit, Dick J Bekedam, Etelka Moll, Martijn A Oudijk, Wilhelmina M van Baal, Marjon A de Boer, Henricus Visser, Joris van Drongelen, Flip W van de Made, Karlijn C Vollebregt, Moira A Muller, Mireille N Bekker, Jozien T J Brons, Marieke Sueters, Josje Langenveld, Maureen T Franssen, Nico W Schuitemaker, Erik van Beek, Hubertina C J Scheepers, Karin de Boer, Eveline M Tepe, Anjoke J M Huisjes, Angelo B Hooker, Evelyn C J Verheijen, Dimitri N Papatsonis, Ben Willem J Mol, Brenda M Kazemier, Eva Pajkrt
BACKGROUND: Preterm birth is in quantity and in severity the most important topic in obstetric care in the developed world. Progestogens and cervical pessaries have been studied as potential preventive treatments with conflicting results. So far, no study has compared both treatments. METHODS/DESIGN: The Quadruple P study aims to compare the efficacy of vaginal progesterone and cervical pessary in the prevention of adverse perinatal outcome associated with preterm birth in asymptomatic women with a short cervix, in singleton and multiple pregnancies separately...
September 4, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28869651/technical-note-investigating-the-impact-of-field-size-on-patient-selection-for-the-1-5t-mr-linac
#10
Robert W Chuter, Philip Whitehurst, Ananya Choudhury, Marcel van Herk, Alan McWilliam
PURPOSE: The 1.5 T Elekta MR-Linac, due to the construction of the system will have a maximum radiation field size in the superior-inferior patient direction of 22 cm at isocentre. The field size may impact on the patient groups which can be treated on the system. This technical note aims to address the question of which treatment sites will be affected by field size limitations on the MR-Linac. METHODS: Using historical data for 11 595 cases over 2 yr treated at the authors' institution, the proportion of plans that would fit the MR-Linac's field size was determined for eleven patient groups...
September 4, 2017: Medical Physics
https://www.readbyqxmd.com/read/28791263/second-trimester-cervical-length-measurement-for-prediction-spontaneous-preterm-birth-in-an-unselected-risk-population
#11
Alberto Borges Peixoto, Taciana Mara Rodrigues da Cunha Caldas, Luisa Almeida Tahan, Caetano Galvão Petrini, Wellington P Martins, Fabricio Da Silva Costa, Edward Araujo Júnior
OBJECTIVE: To assess the predictive capacity of cervical length (CL) measurement underwent during the second trimester ultrasound for prediction preterm birth <32, 34, and 37 weeks of gestation in an unselected risk population. METHODS: A retrospective cohort study was performed with 751 singleton pregnancies between 20 and 24+6 weeks of gestation. The CL measurement (mm) using the transvaginal route was obtained in a sagittal view and the calipers positioned to measure the linear distance between the triangular area of echodensity at the external os and the internal os...
July 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28778109/reference-ranges-for-ultrasonographic-measurements-of-the-uterine-cervix-in-low-risk-pregnant-women
#12
Kleber Cursino Andrade, Thaísa Guedes Bortoletto, Cristiane Martins Almeida, Renan Antonio Daniel, Heloísa Avo, Rodolfo Carvalho Pacagnella, José Guilherme Cecatti
Objective To define transvaginal ultrasound reference ranges for uterine cervix measurements according to gestational age (GA) in low-risk pregnancies. Methods Cohort of low-risk pregnant women undergoing transvaginal ultrasound exams every 4 weeks, comprising measurements of the cervical length and volume, the transverse and anteroposterior diameters of the cervix, and distance from the entrance of the uterine artery into the cervix until the internal os. The inter- and intraobserver variabilities were assessed with the linear correlation coefficient and the Student t-test...
September 2017: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/28716915/prostaglandin-dehydrogenase-is-a-target-for-successful-induction-of-cervical-ripening
#13
Annavarapu Hari Kishore, Hanquan Liang, Mohammed Kanchwala, Chao Xing, Thota Ganesh, Yucel Akgul, Bruce Posner, Joseph M Ready, Sanford D Markowitz, Ruth Ann Word
The cervix represents a formidable structural barrier for successful induction of labor. Approximately 10% of pregnancies undergo induction of cervical ripening and labor with prostaglandin (PG) E2 or PGE analogs, often requiring many hours of hospitalization and monitoring. On the other hand, preterm cervical ripening in the second trimester predicts preterm birth. The regulatory mechanisms of this paradoxical function of the cervix are unknown. Here, we show that PGE2 uses cell-specific EP2 receptor-mediated increases in Ca(2+) to dephosphorylate and translocate histone deacetylase 4 (HDAC4) to the nucleus for repression of 15-hydroxy prostaglandin dehydrogenase (15-PGDH)...
August 1, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28706170/-multiple-factors-in-the-second-trimester-of-pregnancy-on-preterm-labor-symptoms-and-preterm-birth
#14
Jeung Im Kim, Mi Ock Cho, Gyu Yeon Choi
PURPOSE: The aim of this study was to determine the influence of various factors on preterm labor symptoms (PLS) and preterm birth (PB). METHODS: This prospective cohort study included 193 women in the second stage of pregnancy. Multiple characteristics including body mass index (BMI), smoking, and pregnancy complications were collected through a self-report questionnaire. Pregnancy stress and PLS were each measured with a related scale. Cervical length and birth outcome were evaluated from medical charts...
June 2017: Journal of Korean Academy of Nursing
https://www.readbyqxmd.com/read/28693352/transvaginal-sonographic-assessment-of-cervix-in-prediction-of-admission-to-delivery-interval-in-preterm-premature-rupture-of-membranes
#15
Vimala Kathir, Dilip Maurya, Anish Keepanasseril
OBJECTIVE: To assess the usefulness of cervical parameters measured by transvaginal sonography, that is, cervical length and posterior cervical angle, in predicting the admission to delivery interval in women with preterm rupture of membranes. METHODS: This prospective study was conducted in a tertiary care centre in South India. Women with preterm premature rupture of membranes at 28-34 weeks, confirmed clinically, not in labour and presenting within 24 hours to hospital were included...
July 20, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28651447/the-association-between-fetal-fibronectin-and-spontaneous-preterm-birth-in-twin-pregnancies-with-a-shortened-cervical-length
#16
Kathy C Matthews, Simi Gupta, Jennifer Lam-Rachlin, Daniel H Saltzman, Andrei Rebarber, Nathan S Fox
OBJECTIVE: To estimate the association between a positive fetal fibronectin (fFN) and spontaneous preterm birth (SPTB) in twin pregnancies with a shortened cervical length (CL). STUDY DESIGN: Retrospective cohort study of asymptomatic twin pregnancies managed by a single MFM practice from 2005 to 2016. We included all women with a shortened CL ≤25 mm at 22-28 weeks, and compared outcomes between women with a positive and negative fFN result. RESULTS: One hundred fifty-five patients were included, 129 (83...
July 10, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28639717/a-prospective-study-on-transvaginal-ultrasound-of-cervical-length-cl-in-the-first-and-second-trimester-in-a-low-risk-population
#17
C B Wulff, L Rode, S Rosthøj, E Hoseth, O B Petersen, A Tabor
OBJECTIVES: To assess cervical length (CL) longitudinally in the first and second trimester and to determine the proportion of women with a short CL. Further, to assess if women with a short CL at 19-24 weeks could be identified at the combined first-trimester screening (cFTS) at 11-14 weeks in relation to a potential implementation of CL screening in the Danish population. METHODS: We recruited singleton pregnant women attending the combined first-trimester screening from 1 November 2013 to 1 December 2014 to a longitudinal prospective study at three University Hospitals in Denmark...
June 22, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28594783/progestogens-for-maintenance-tocolysis-in-women-with-a-short-cervix-a-randomized-controlled-trial
#18
RANDOMIZED CONTROLLED TRIAL
Fabio Facchinetti, Patrizia Vergani, Mariarosaria Di Tommaso, Luca Marozio, Barbara Acaia, Roberto Vicini, Lucrezia Pignatti, Anna Locatelli, Marina Spitaleri, Chiara Benedetto, Barbara Zaina, Roberto DʼAmico
OBJECTIVE: To assess the efficacy of progestogens for maintenance tocolysis in women undelivered after their first preterm labor episode. METHODS: Women with singleton pregnancies between 22 0/7 and 31 6/7 weeks of gestation with arrested preterm labor and a cervical length 25 mm or less at hospital discharge were eligible. Patients with a previous preterm birth were excluded. In a randomized controlled trial conducted in five university hospitals, women were randomized to receive vaginal progesterone (200 mg per day) or intramuscular 17α-hydroxyprogesterone caproate (341 mg per week) or to an observation groups (control group)...
July 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28594774/cervical-evaluation-from-ancient-medicine-to-precision-medicine
#19
Helen Feltovich
Since ancient times, cervical assessment for predicting timing of delivery has relied primarily on digital (subjective) assessment of dilatation, softening, and length. To date, transvaginal ultrasound cervical length is the only one of these parameters that meets criteria for a biomarker; no objective, quantitative measure of cervical dilatation or softening has gained clinical acceptance. This review discusses how the cervix has been assessed from ancient times to the present day and how a precision medicine approach could improve understanding of not only the cervix, but also parturition in general...
July 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28586106/sonographic-measurement-of-cervical-volume-in-pregnant-women-at-high-risk-of-preterm-birth-using-a-geometric-formula-for-a-frustum-versus-3-dimensional-automated-virtual-organ-computer-aided-analysis
#20
Ahmed I Ahmed, Sarah R Aldhaheri, Javier Rodriguez-Kovacs, Deepa Narasimhulu, Manesha Putra, Howard Minkoff, Shoshana Haberman
OBJECTIVES: To compare cervical volume measurements by 3-dimensional (3D) sonography using Virtual Organ computer-aided analysis (VOCAL; GE Healthcare, Milwaukee, WI) versus a manual method using a geometric formula for a frustum. METHODS: We included 142 asymptomatic pregnant women at 16 to 24 weeks gestation at high risk for preterm birth. With a Voluson 730 Expert system (GE Healthcare), they underwent 2-dimensional (2D) transvaginal sonographic cervical length measurements and 3D cervical volume acquisition...
June 6, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
keyword
keyword
93914
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"