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https://www.readbyqxmd.com/read/28916261/differential-involvement-of-l-and-t-type-ca-2-channels-store-operated-calcium-channel-trpc-and-rho-kinase-signaling-pathway-s-in-pgf2%C3%AE-induced-contractions-in-myometrium-of-non-pregnant-and-pregnant-buffaloes-bubalus-bubalis
#1
Abhishek Sharma, Udayraj P Nakade, Pooja Jaitley, Vipin Sharma, Soumen Choudhury, Satish Kumar Garg
This study unravels the differential involvement of calcium signaling pathway(s) in PGF2α-induced contractions in myometrium of non-pregnant and pregnant buffaloes. Compared to the myometrium of pregnant animals, myometrium of non-pregnant buffaloes was more sensitive to PGF2α-induced contractile effect as manifested by the changes in mean integral tension (MIT) and tonicity. However, phasic contraction was significantly more in myometrium of pregnant animals. The uterotonic effect of PGF2α was dependent on extracellular Ca(2+) and its influx through nifedipine-sensitive L-type Ca(2+) channels both in non-pregnant and pregnant animals, but T-type Ca(2+) channels play an additional role during pregnancy...
September 12, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/28893211/clinical-performance-and-patient-outcome-after-simulation-based-training-in-prevention-and-management-of-postpartum-haemorrhage-an-educational-intervention-study-in-a-low-resource-setting
#2
Ellen Nelissen, Hege Ersdal, Estomih Mduma, Bjørg Evjen-Olsen, Jos Twisk, Jacqueline Broerse, Jos van Roosmalen, Jelle Stekelenburg
BACKGROUND: Postpartum haemorrhage (PPH) is a major cause of maternal mortality. Prevention and adequate treatment are therefore important. However, most births in low-resource settings are not attended by skilled providers, and knowledge and skills of healthcare workers that are available are low. Simulation-based training effectively improves knowledge and simulated skills, but the effectiveness of training on clinical behaviour and patient outcome is not yet fully understood. The aim of this study was to assess the effect of obstetric simulation-based training on the incidence of PPH and clinical performance of basic delivery skills and management of PPH...
September 11, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/28888864/predictors-of-supplementation-for-breastfed-babies-in-a-baby-friendly-hospital
#3
Stefanie Kalmakoff, Andrew Gray, Sally Baddock
PROBLEM: Supplementation of breastfed babies is common during the hospital stay. BACKGROUND: The Baby Friendly Hospital Initiative (BFHI) optimises practices to support exclusive breastfeeding, yet supplementation is still prevalent. OBJECTIVE: To determine predictors for supplementation in a cohort of breastfed babies in a Baby-Friendly hospital. METHODS: Electronic hospital records of 1530 healthy term or near term singleton infants and their mothers were examined retrospectively and analysed to identify factors associated with in-hospital supplementation using Poisson regression (unadjusted and adjusted)...
September 6, 2017: Women and Birth: Journal of the Australian College of Midwives
https://www.readbyqxmd.com/read/28884585/analysis-of-the-cost-effectiveness-of-carbetocin-for-the-prevention-of-hemorrhage-following-cesarean-delivery-in-ecuador
#4
Aquiles Rodrigo Henríquez-Trujillo, Ruth Alicia Lucio-Romero, Kerlly Bermúdez-Gallegos
AIM: To compare the cost of carbetocin with that of oxytocin for the prevention and management of hemorrhage following cesarean delivery in Ecuador. MATERIALS & METHODS: We developed a decision tree based cost-effectiveness model to compare carbetocin with oxytocin in the prevention of hemorrhage following cesarean delivery in Ecuador. Our model was run from a third party payer perspective and was validated by local experts in the field. The efficacy of the interventions was determined based on a systematic review of the literature...
September 8, 2017: Journal of Comparative Effectiveness Research
https://www.readbyqxmd.com/read/28875743/different-routes-and-forms-of-uterotonics-for-treatment-of-retained-placenta-methodological-issues
#5
Ahmed M Abbas
No abstract text is available yet for this article.
September 6, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28864699/uterine-balloon-tamponade-as-an-adjunct-to-misoprostol-for-the-treatment-of-uncontrolled-postpartum-haemorrhage-a-randomised-controlled-trial-in-benin-and-mali
#6
Alexandre Dumont, Cécile Bodin, Benjamin Hounkpatin, Thomas Popowski, Mamadou Traoré, René Perrin, Patrick Rozenberg
OBJECTIVE: To assess the effectiveness of low-cost uterine tamponade as an adjunct to misoprostol for the treatment of uncontrolled postpartum haemorrhage (PPH) in low-resource settings. DESIGN: Randomised controlled trial. SETTING: Seven healthcare facilities in Cotonou, Benin and Bamako, Mali. POPULATION: Women delivering vaginally who had clinically diagnosed PPH that was suspected to be due to uterine atony, who were unresponsive to oxytocin and who needed additional uterotonics...
September 1, 2017: BMJ Open
https://www.readbyqxmd.com/read/28858899/patients-undergoing-cesarean-delivery-after-exposure-to-oxytocin-during-labor-require-higher-postpartum-oxytocin-doses
#7
Amanda Foley, Ashley Gunter, Kenneth J Nunes, Sajid Shahul, Barbara M Scavone
BACKGROUND: Experts recommend postpartum oxytocin to prevent uterine atony and hemorrhage, but oxytocin may be associated with dose-dependent adverse effects, and the correct dose of postpartum oxytocin has yet to be determined. The effective dose in 90% of patients (ED90) of oxytocin after cesarean delivery may be higher in patients exposed to oxytocin during labor compared to patients unexposed. We therefore undertook this study to compare postpartum oxytocin requirements in patients exposed to oxytocin prior to cesarean delivery versus those not exposed, when all were treated according to a specific institutional protocol...
August 30, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28797187/a-survey-of-physicians-attitudes-toward-uterotonic-administration-in-parturients-undergoing-cesarean-section
#8
Sharon Orbach-Zinger, Sharon Einav, Assaf Yonah, Leonid A Eidelman, Shia Fein, Atara Davis Ba, Alexander Ioscovich
OBJECTIVE: Oxytocin is globally accepted as first line treatment for prevention of post partum hemorrhage. However there is wide variability in its use in clinical practice. In this study we aimed to evaluate obstetricians and anesthesiologists attitudes towards uterotonic practices in Israel. STUDY DESIGN: The current survey was designed to study the preferences of obstetricians and anesthesiologists in seven University hospitals regarding the type, dose and mode of administration of uterotonic drugs, as well as their knowledge regarding the side effects of these drugs...
August 10, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28720114/effects-of-the-equip-quasi-experimental-study-testing-a-collaborative-quality-improvement-approach-for-maternal-and-newborn-health-care-in-tanzania-and-uganda
#9
P Waiswa, F Manzi, G Mbaruku, A K Rowe, M Marx, G Tomson, T Marchant, B A Willey, J Schellenberg, S Peterson, C Hanson
BACKGROUND: Quality improvement is a recommended strategy to improve implementation levels for evidence-based essential interventions, but experience of and evidence for its effects in low-resource settings are limited. We hypothesised that a systemic and collaborative quality improvement approach covering district, facility and community levels, supported by report cards generated through continuous household and health facility surveys, could improve the implementation levels and have a measurable population-level impact on coverage and quality of essential services...
July 18, 2017: Implementation Science: IS
https://www.readbyqxmd.com/read/28707488/efficacy-of-oxytocin-versus-carbetocin-in-prevention-of-postpartum-hemorrhage-after-cesarean-section-under-general-anesthesia-a-prospective-randomized-clinical-trial
#10
Robabeh Taheripanah, Amal Shoman, Mohammad Ali Karimzadeh, Marzieh Zamaniyan, Narges Malih
OBJECTIVE: To compare the use of carbetocin and oxytocin in the prevention of postpartum hemorrhage after cesarean section. METHODS: The present study was a prospective double-blind randomized controlled clinical trial performed in two university-based hospitals in Tehran, Iran. Two hundred and twenty women with the gestational age of more than 37 weeks, who needed cesarean operation, participated in the study. Patients were assigned to receive either a single 100 μg IV dose of carbetocin or a standard 30-international unit IV infusion of oxytocin during 2 h after delivery of placenta...
July 25, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28703925/role-of-prophylactic-oxytocin-in-the-third-stage-of-labor-physiologic-versus-pharmacologically-influenced-labor-and-birth
#11
REVIEW
Elise N Erickson, Christopher S Lee, Cathy L Emeis
INTRODUCTION: Maternity care providers administer oxytocin prophylactically to prevent postpartum hemorrhage (PPH). Prophylactic oxytocin is generally considered effective and safe and is promoted by national organizations for standardized use. In this article, the evidence supporting prophylactic oxytocin administration for women undergoing spontaneous labor and birth compared with women whose labors included administration of exogenous oxytocin for induction or augmentation is explored...
July 2017: Journal of Midwifery & Women's Health
https://www.readbyqxmd.com/read/28676403/obstetric-interventions-and-maternal-morbidity-among-women-who-experience-severe-postpartum-hemorrhage-during-cesarean-delivery
#12
K Seligman, B Ramachandran, P Hegde, E T Riley, Y Y El-Sayed, L M Nelson, A J Butwick
BACKGROUND: Compared to vaginal delivery, women undergoing cesarean delivery are at increased risk of postpartum hemorrhage. Management approaches may differ between those undergoing prelabor cesarean delivery compared to intrapartum cesarean delivery. We examined surgical interventions, blood component use, and maternal outcomes among those experiencing severe postpartum hemorrhage within the two distinct cesarean delivery cohorts. METHODS: We performed secondary analyses of data from two cohorts who underwent prelabor cesarean delivery or intrapartum cesarean delivery at a tertiary obstetric center in the United States between 2002 and 2012...
May 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/28593774/-two-years-of-pharmacological-termination-of-pregnancy-in%C3%A2-the-silesian-hospital-opava-success-and-lessons
#13
A Šefčíková, L Šimková, A Dörr
OBJECTIVE: The purpose of this study was to summarize our departments experience with pharmacological termination of pregnancy up to 49 days of amenorrhea, to assess the success, and especially, to offer a closer analysis of the complications of this method. DESIGN: Retrospective analysis. SETTING: Department of Gynaecology and Obstetrics at the Silesian Hospital. METHODS: The monitored sample consisted of 161 female patients who underwent pharmacological termination of pregnancy at our department from 1...
2017: Ceská Gynekologie
https://www.readbyqxmd.com/read/28559440/bitter-taste-receptors-as-targets-for-tocolytics-in-preterm-labor-therapy
#14
Kaizhi Zheng, Ping Lu, Ellen Delpapa, Karl Bellve, Ruitang Deng, Jennifer C Condon, Kevin Fogarty, Lawrence M Lifshitz, Tiffany A Moore Simas, Fangxiong Shi, Ronghua ZhuGe
Preterm birth (PTB) is the leading cause of neonatal mortality and morbidity, with few prevention and treatment options. Uterine contraction is a central feature of PTB, so gaining new insights into the mechanisms of this contraction and consequently identifying novel targets for tocolytics are essential for more successful management of PTB. Here we report that myometrial cells from human and mouse express bitter taste receptors (TAS2Rs) and their canonical signaling components (i.e., G-protein gustducin and phospholipase C β2)...
May 30, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28526450/the-association-of-single-nucleotide-polymorphisms-in-the%C3%A2-oxytocin-receptor-and-g-protein-coupled-receptor-kinase-6-grk6-genes-with-oxytocin-dosing-requirements-and-labor-outcomes
#15
Chad A Grotegut, Emily Ngan, Melanie E Garrett, Marie Lynn Miranda, Allison E Ashley-Koch, Geeta K Swamy
BACKGROUND: Oxytocin is a potent uterotonic agent that is widely used for induction and augmentation of labor. Oxytocin has a narrow therapeutic index and the optimal dosing for any individual woman varies widely. OBJECTIVE: The objective of this study was to determine whether genetic variation in the oxytocin receptor (OXTR) or in the gene encoding G protein-coupled receptor kinase 6 (GRK6), which regulates desensitization of the oxytocin receptor, could explain variation in oxytocin dosing and labor outcomes among women being induced near term...
September 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28526143/uterotonic-medications-oxytocin-methylergonovine-carboprost-misoprostol
#16
REVIEW
Cristianna Vallera, Lynn O Choi, Catherine M Cha, Richard W Hong
Uterine atony is a common cause of primary postpartum hemorrhage, which remains a major cause of pregnancy-related mortality for women worldwide. Oxytocin, methylergonovine, carboprost, and misoprostol are commonly used to restore uterine tone. Oxytocin is the first-line agent. Methylergonovine and carboprost are both highly effective second-line agents with severe potential side effects. Recent studies have called into question the effectiveness of misoprostol as an adjunct to other uterotonic agents, but it remains a useful therapeutic in resource-limited practice environments...
June 2017: Anesthesiology Clinics
https://www.readbyqxmd.com/read/28499381/experience-in-the-use-of-non-pneumatic-anti-shock-garment-nasg-in-the-management-of-postpartum-haemorrhage-with-hypovolemic-shock-in-the-fundaci%C3%A3-n-valle-del-lili-cali-colombia
#17
María Fernanda Escobar, Carlos Eduardo Füchtner, Javier Andrés Carvajal, Albaro José Nieto, Adriana Messa, Sara Sofía Escobar, Angélica María Monroy, Angélica María Forero, José David Casallas, Marcela Granados, Suellen Miller
BACKGROUND: The aim of this case series is to describe the experience of using the non-pneumatic anti-shock garment (NASG) in the management of severe Postpartum hemorrhage (PPH) and shock, and the value of implementing this concept in high-complexity obstetric hospitals. METHODS: Descriptive case series of 77 women that received NASG in the management of PPH with severe hypovolemic shock from June 2014 to December 2015. Vital signs, shock index (SI), the lactic acid value and the base deficit were compared before and after NASG application...
May 12, 2017: Reproductive Health
https://www.readbyqxmd.com/read/28498927/efficacy-and-safety-of-carbetocin-given-as-an-intravenous-bolus-compared-with-short-infusion-for-caesarean-section-double-blind-double-dummy-randomized-controlled-non-inferiority-trial
#18
S Dell-Kuster, I Hoesli, O Lapaire, E Seeberger, L A Steiner, H C Bucher, T Girard
Background: Carbetocin is a synthetic oxytocin-analogue, which should be administered as bolus according to manufacturer's recommendations. A higher speed of oxytocin administration leads to increased cardiovascular side-effects. It is unclear whether carbetocin administration as short infusion has the same efficacy on uterine tone compared with bolus administration and whether haemodynamic parameters differ. Methods: In this randomized, double-blind, non-inferiority trial, women undergoing planned or unplanned Caesarean section (CS) under regional anaesthesia received a bolus and a short infusion, only one of which contained carbetocin 100 mcg (double dummy)...
May 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28479286/phorbol-12-13-dibutyrate-induced-protein-kinase-c-activation-triggers-sustained-contracture-in-human-myometrium-in%C3%A2-vitro
#19
Laurence Massenavette, Wilène Paul, Stéphanie Corriveau, Jean-Charles Pasquier, Éric Rousseau
BACKGROUND: Although physiologic transition from rhythmic contractions to uterine retraction postpartum remains a poorly understood process, it has been shown that the latter is essential in the prevention of hemorrhage and its negative consequences. OBJECTIVE: To investigate the transition from oscillatory contractions to tonic contracture in human myometrium after delivery, a mechanism purported to facilitate postpartum hemostasis. Protein kinase C (PKC) plays a key regulatory role in human uterine contractions because it can prevent dephosphorylation of regulatory proteins and sensitize the contractile machinery to low Ca(2+)...
May 4, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28400465/hypercholesterolemia-impairs-oxytocin-induced-uterine-contractility-in-late-pregnant-mouse
#20
Amol R Padol, Susanth V Sukumaran, Abdul Sadam, Manickam Kesavan, Kandasamy Arunvikram, Ankita D Verma, Vivek Srivastava, Manjit Panigrahi, Thakur Uttam Singh, Avinash G Telang, Santosh K Mishra, Subhashree Parida
High cholesterol is known to negatively affect uterine contractility in ex vivo conditions. The aim of the present study was to reveal the effect of in vivo hypercholesterolemia on spontaneous and oxytocin-induced uterine contractility in late pregnant mouse uterus. Female Swiss albino mice were fed with high cholesterol (HC) diet (0.5% sodium cholate, 1.25% cholesterol and 15% fat) for 6 weeks and then throughout the gestation period after mating. On day 19 of gestation, serum cholesterol level was increased more than 3-fold while triglycerides level was reduced in HC diet-fed animals as compared to control animals fed with a standard diet...
May 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
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