keyword
MENU ▼
Read by QxMD icon Read
search

Uterine contraction

keyword
https://www.readbyqxmd.com/read/28333087/magnetically-bioprinted-human-myometrial-3d-cell-rings-as-a-model-for-uterine-contractility
#1
Glauco R Souza, Hubert Tseng, Jacob A Gage, Arunmani Mani, Pujan Desai, Fransisca Leonard, Angela Liao, Monica Longo, Jerrie S Refuerzo, Biana Godin
Deregulation in uterine contractility can cause common pathological disorders of the female reproductive system, including preterm labor, infertility, inappropriate implantation, and irregular menstrual cycle. A better understanding of human myometrium contractility is essential to designing and testing interventions for these important clinical problems. Robust studies on the physiology of human uterine contractions require in vitro models, utilizing a human source. Importantly, uterine contractility is a three-dimensionally (3D)-coordinated phenomenon and should be studied in a 3D environment...
March 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28328535/the-assessment-of-labor-a-brief-history
#2
Wayne R Cohen, Emanuel A Friedman
In the 1930s, investigators in the US, Germany and Switzerland made the first attempts to quantify the course of labor in a clinically meaningful way. They emphasized the rupture of membranes as a pivotal event governing labor progress. Attention was also placed on the total number of contractions as a guide to normality. Beginning in the 1950s, Friedman determined that changes in cervical dilatation and fetal station over time were the most useful parameters for the assessment of labor progress. He showed all normal labors had similar patterns of dilatation and descent, differing only in the durations and slopes of their component parts...
March 22, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28326570/reproductive-disorders-in-female-rats-after-prenatal-exposure-to-betamethasone
#3
Cibele S Borges, Tainá L Pacheco, Marina T Guerra, Aline L Barros, Patricia V Silva, Gabriela Missassi, Katiussia Pinho da Silva, Janete A Anselmo-Franci, André S Pupo, Wilma De G Kempinas
Betamethasone is the drug of choice for antenatal treatment, promoting fetal lung maturation and decreasing mortality. Previous studies in rats reported male programming and alteration in sperm parameters and sexual behavior following intrauterine betamethasone exposure. The impact on the female reproductive development is not known. In this study, rat female offspring was assessed for sexual development, morphophysiology of the reproductive tract and fertility after maternal exposure to 0.1 mg kg(-1) of betamethasone or vehicle on gestational days 12, 13, 18 and 19...
March 21, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28326517/labour-in-women-with-gestational-diabetes-mellitus
#4
Klaudia Grabowska, Angelika Stapińska-Syniec, Aleksandra Saletra, Patrycja Jarmużek, Dorota Bomba-Opoń
OBJECTIVES: Gestational diabetes mellitus (GDM) constitutes one of the most common pregnancy complications and affects 3-5% of all pregnancies, with its incidence still growing. Due to possible maternal and fetal complications, the peripartum management of GDM patients continues to be a debatable issue. The aim of the study was to analyse the course and final way of delivery in women with gestational diabetes mellitus. The effectiveness of induction of labour (IOL) was also assessed and factors predisposing to cesarean section were identified...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28316639/feature-extraction-and-classification-of-ehg-between-pregnancy-and-labour-group-using-hilbert-huang-transform-and-extreme-learning-machine
#5
Lili Chen, Yaru Hao
Preterm birth (PTB) is the leading cause of perinatal mortality and long-term morbidity, which results in significant health and economic problems. The early detection of PTB has great significance for its prevention. The electrohysterogram (EHG) related to uterine contraction is a noninvasive, real-time, and automatic novel technology which can be used to detect, diagnose, or predict PTB. This paper presents a method for feature extraction and classification of EHG between pregnancy and labour group, based on Hilbert-Huang transform (HHT) and extreme learning machine (ELM)...
2017: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/28298752/quality-of-labor-epidural-analgesia-and-maternal-outcome-with-levobupivacaine-and-ropivacaine-a-double-blinded-randomized-trial
#6
T Senthil Kumar, P Rani, V R Hemanth Kumar, Sunita Samal, S Parthasarathy, M Ravishankar
BACKGROUND: Quality of labor analgesia plays a vital role in the maternal outcome. Very few literature are available analyzing the quality of epidural labor analgesia. AIM: The aim of this study was to compare the effectiveness of 0.1% levobupivacaine and 0.1% ropivacaine with fentanyl as an adjuvant for epidural labor analgesia in terms of onset, duration, quality of analgesia, and degree of motor blockade. METHODOLOGY: Sixty nulliparous parturients, with singleton uncomplicated pregnancy, were recruited by continuous sampling...
January 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28295156/identification-of-first-stage-labor-arrest-by-electromyography-in-term-nulliparous-women-after-induction-of-labor
#7
Blanka Vasak, Elisabeth M Graatsma, Elske Hekman-Drost, Marinus J Eijkemans, Jules H Schagen Van Leeuwen, Gerard H A Visser, Benoit C Jacod
Worldwide induction and cesarean delivery rates have increased rapidly, with consequences for subsequent pregnancies. The majority of intra-partum cesarean deliveries are performed for failure to progress, typically in nulliparous women at term. Current uterine registration techniques fail to identify inefficient contractions leading to first stage labor arrest. An alternative technique, uterine electromyography has been shown to identify inefficient contractions leading to first stage arrest of labor in nulliparous women with spontaneous onset of labor at term...
March 12, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28293719/placental-recess-accompanied-by-a-t2-dark-band-a-new-finding-for-diagnosing-placental-invasion
#8
Tomomi Sato, Naoko Mori, Osamu Hasegawa, Takeshi Shigihara, Keiya Fujimori, Kazuhiro Tasaki, Fumio Shishido
PURPOSE: Our aim was to assess the usefulness of a new magnetic resonance imaging (MRI) finding, the placental recess, for diagnosing placental invasion. METHODS: This retrospective study included 51 patients (mean age 34.1 years, range 26-43 years) with suspected placental invasion who underwent cesarean section. Preoperative MRI was performed using a 1.5-T unit and included axial, sagittal, and coronal T2-weighted imaging (T2WI) with half-Fourier fast spin-echo sequences...
March 14, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28283264/uterine-contractility-and-elastography-as-prognostic-factors%C3%A2-for-pregnancy-after-intrauterine-insemination
#9
Nelly Swierkowski-Blanchard, Florence Boitrelle, Laura Alter, Jacqueline Selva, Thibaud Quibel, Antoine Torre
OBJECTIVE: To determine the impact of the frequency and intensity of uterine contractions (UCs) at the time of IUI on subsequent fertility. DESIGN: Observational pilot study. SETTING: University hospital. PATIENT(S): One hundred volunteer women scheduled for IUI between April 2011 and July 2013, in whom UCs were assessed during the ultrasound before IUI. INTERVENTION(S): A two-dimensional sagittal uterus elastography was recorded for 5 minutes...
March 7, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28282410/biomathematical-pattern-of-emg-signal-propagation-in-smooth-muscle-of-the-non-pregnant-porcine-uterus
#10
Malgorzata Domino, Bartosz Pawlinski, Zdzislaw Gajewski
Uterine contractions are generated by myometrial smooth muscle cells (SMCs) that comprise most of the myometrial layer of the uterine wall. Aberrant uterine motility (i.e., hypo- or hyper-contractility or asynchronous contractions) has been implicated in the pathogenesis of infertility due to the failure of implantation, endometriosis and abnormal estrous cycles. The mechanism whereby the non-pregnant uterus initiates spontaneous contractions remains poorly understood. The aim of the present study was to employ linear synchronization measures for analyzing the pattern of EMG signal propagation (direction and speed) in smooth muscles of the non-pregnant porcine uterus in vivo using telemetry recording system...
2017: PloS One
https://www.readbyqxmd.com/read/28277132/maternal-serum-cytokine-levels-in-pregnancies-complicated-with-threatened-preterm-labour
#11
Alejandra Herrera-Muñoz, Ana M Fernández-Alonso, Natalia Fischer-Suárez, Peter Chedraui, Faustino R Pérez-López
OBJECTIVE: To investigate serum inflammatory markers in singleton gestations complicated with threatened preterm labour (TPL). METHODS: Pregnant women complicated with TPL (n = 61) were recruited to measure maternal serum levels of a panel of cytokines and C-reactive protein and then compared to controls without TPL, matched for gestational age (n = 64) and term pregnancies in the prodromal phase of labour (PPL) (n = 31). In addition, baseline cytokine levels were compared among cases and controls according to the outcome...
February 21, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28268932/assessment-of-autonomic-neurodevelopment-in-the-mouse-fetuses-by-using-fetal-electrocardiography
#12
Ahsan H Khandoker, Thuraia Al Khoori, Takuya Ito, Rika Sugibayashi, Yoshitaka Kimura
Fetal Electrocardiography (FECG) offers unique capabilities for assessment of beat-to-beat fetal heart rate (FHR) and fetal heart rate variability (FHRV), which are indirect markers of autonomic nervous system, its development. In this study the fetal ECG signals, FHR and FHRV are successfully recorded to assess the neurodevelopment in fetal mice in the second and third trimester from days 12.5 to 18.5 by using direct insertion of fetal ECG electrodes in the uterine. FHR increases from day 12.5 till 15.5 reaching a plateau and then shows a sudden increase on the day 18...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268931/selective-heart-rate-variability-analysis-to-account-for-uterine-activity-during-labor-and-improve-classification-of-fetal-distress
#13
G J J Warmerdam, R Vullings, J O E H Van Laar, M B Van der Hout-Van der Jagt, J W M Bergmans, L Schmitt, S G Oei
Cardiotocography (CTG) is currently the most often used technique for detection of fetal distress. Unfortunately, CTG has a poor specificity. Recent studies suggest that, in addition to CTG, information on fetal distress can be obtained from analysis of fetal heart rate variability (HRV). However, uterine contractions can strongly influence fetal HRV. The aim of this study is therefore to investigate whether HRV analysis for detection of fetal distress can be improved by distinguishing contractions from rest periods...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28250966/pph-butterfly-a-novel-device-to-treat-postpartum-haemorrhage-through-uterine-compression
#14
Caroline Cunningham, Peter Watt, Nasreen Aflaifel, Simon Collins, Dot Lambert, John Porter, Tina Lavender, Tony Fisher, Andrew Weeks
OBJECTIVE: Postpartum haemorrhage (PPH) is a significant cause of maternal morbidity and mortality. The most common cause is an inability of the uterus to contract adequately after childbirth. In bimanual compression (BMC), one hand is placed within the vagina and the other hand is on the abdominal wall to compress the uterus. It is effective, but very uncomfortable for the woman. We designed a device that could replicate BMC without inserting a hand vaginally, therefore being less invasive...
February 2017: BMJ Innovations
https://www.readbyqxmd.com/read/28237720/11%C3%AE-hydroxysteroid-dehydrogenase-type-1-and-pregnancy-role-in-the-timing-of-labour-onset-and-in-myometrial-contraction
#15
Francesco Damiani, Sofia Makieva, Sara F Rinaldi, Lei Hua, Paola Marcolongo, Felice Petraglia, Jane E Norman
Glucocorticoids play a primary role in the maturation of fetal organs and may contribute to the onset of labour. Glucocorticoid activity depends on the 11β-hydroxysteroid dehydrogenase family (11β-HSDs), catalysing the interconversion between "active" cortisol into inactive cortisone. No definitive study exists on 11β-HSD expression profile in human decidua and myometrium during pregnancy. We investigated the implications of 11β-HSD1 in the regulation of uterine activity in pregnancy, examining its role on contraction of a myocyte cell line and murine 11β-hsd1 levels in utero...
February 22, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28227138/assessment-of-autonomic-neurodevelopment-in-the-mouse-fetuses-by-using-fetal-electrocardiography
#16
Ahsan H Khandoker, Thuraia Al Khoori, Takuya Ito, Rika Sugibayashi, Yoshitaka Kimura, Ahsan H Khandoker, Thuraia Al Khoori, Takuya Ito, Rika Sugibayashi, Yoshitaka Kimura, Thuraia Al Khoori, Yoshitaka Kimura, Rika Sugibayashi, Takuya Ito, Ahsan H Khandoker
Fetal Electrocardiography (FECG) offers unique capabilities for assessment of beat-to-beat fetal heart rate (FHR) and fetal heart rate variability (FHRV), which are indirect markers of autonomic nervous system, its development. In this study the fetal ECG signals, FHR and FHRV are successfully recorded to assess the neurodevelopment in fetal mice in the second and third trimester from days 12.5 to 18.5 by using direct insertion of fetal ECG electrodes in the uterine. FHR increases from day 12.5 till 15.5 reaching a plateau and then shows a sudden increase on the day 18...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227137/selective-heart-rate-variability-analysis-to-account-for-uterine-activity-during-labor-and-improve-classification-of-fetal-distress
#17
G J J Warmerdam, R Vullings, J O E H Van Laar, M B Van der Hout-Van der Jagt, J W M Bergmans, L Schmitt, S G Oei, G J J Warmerdam, R Vullings, J O E H Van Laar, M B Van der Hout-Van der Jagt, J W M Bergmans, L Schmitt, S G Oei, M B Van Der Hout-Van Der Jagt, R Vullings, S G Oei, J O E H Van Laar, J W M Bergmans, G J J Warmerdam, L Schmitt
Cardiotocography (CTG) is currently the most often used technique for detection of fetal distress. Unfortunately, CTG has a poor specificity. Recent studies suggest that, in addition to CTG, information on fetal distress can be obtained from analysis of fetal heart rate variability (HRV). However, uterine contractions can strongly influence fetal HRV. The aim of this study is therefore to investigate whether HRV analysis for detection of fetal distress can be improved by distinguishing contractions from rest periods...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28220794/flucrypyrim-a-novel-uterine-relaxant-has-antinociceptive-and-anti-inflammatory-effects-in-vivo
#18
Zhongtang Li, Limei Wang, Yue Cong, Lin Guo, Xiaohui Lin, Zuyin Yu, Xingan Wu, Junxing Dong, Rifang Yang, Yuwen Cong
Consequences of primary dsysmenorrhea (PD) can be severe. Increased prostaglandin production leads to uterine contraction and insufficient blood flow to the endometrium causing ischemia and pain symptoms. Protein tyrosine kinase/phosphatase activities contribute to the modulation of uterine contraction. In our previous study, we found the synthetic β-methoxyacrylates compound Fluacrypyrim (FAPM), significantly increased protein tyrosine phosphatases (PTPs) activity, resulting in dephosphorylation of tyrosine kinases...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28210497/onset-of-labor-in-post-term-pregnancy-by-chamomile
#19
Fereshte Gholami, Leila Neisani Samani, Maryam Kashanian, Mohsen Naseri, Agha Fateme Hosseini, Seyed Abbas Hashemi Nejad
BACKGROUND: Post-term pregnancy is an important factor in perinatal mortality and morbidity. Generally, to reduce perinatal mortality in pregnancy, the delivery is done before adverse perinatal morbidity occurs. To prevent prolonged pregnancy, labor is induced with chemical drugs and complementary therapies. Due to the side effects and contraindications of chemical medicine, the use of herbs has been investigated in the induction of labor in post-term pregnancy. OBJECTIVES: This study was done to identify the effect of chamomile on inducing labor in women with post-term pregnancy of Shahid Akbarabadi hospital in Tehran in 2013...
November 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28205207/home-uterine-monitoring-for-detecting-preterm-labour
#20
REVIEW
Christine Urquhart, Rosemary Currell, Francoise Harlow, Liz Callow
BACKGROUND: To reduce the morbidity and mortality associated with preterm birth, home uterine activity monitoring aims for early detection of increased contraction frequency, and early intervention with tocolytic drugs to inhibit labour and prolong pregnancy. However, the effectiveness of such monitoring is disputed. OBJECTIVES: To determine whether home uterine activity monitoring is effective in improving the outcomes for women and their infants considered to be at high risk of preterm birth, when compared with care that does not include home uterine activity monitoring...
February 15, 2017: Cochrane Database of Systematic Reviews
keyword
keyword
96607
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"