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inter delivery interval

Tory Spindle, Marzena Hiler, Alison Breland, Nareg Karaoghlanian, Alan L Shihadeh, Thomas Eissenberg
INTRODUCTION: Electronic cigarettes (ECIGs) aerosolize a liquid solution often containing nicotine. ECIG nicotine delivery may be influenced by user puffing behaviors ("puff topography"). ECIG puff topography can be recorded using mouthpiece-based computerized systems. The present study sought to examine the extent to which these systems influence ECIG nicotine delivery and other ECIG-associated acute effects under ad libitum use conditions. METHODS: Plasma nicotine concentration, heart rate, and subjective effects were assessed in 29 experienced ECIG users using their preferred ECIG battery and liquid (≥ 12 mg/ml nicotine) in two sessions differing only by the presence of a mouthpiece-based device...
July 11, 2016: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
Naama Schwartz, Manfred S Green, Enav Yefet, Zohar Nachum
The literature on risk factors for gestational diabetes mellitus recurrence is inconsistent and sometimes contradictory. The importance of inter-pregnancy interval and parity, remains unclear. We aimed to explore controversial risk factors for gestational diabetes mellitus recurrence, especially the modifiable ones, and to develop a prediction model in a cohort of women with gestational diabetes mellitus. A retrospective, population-based, cross-sectional cohort study was performed. The study included 788 women with gestational diabetes mellitus that delivered between 1991-2012 and had consecutive deliveries at a university affiliated hospital in Israel...
September 6, 2016: Endocrine
Clare Harney, Annie Dude, Sadia Haider
OBJECTIVES: Pregnancies conceived after a short inter-pregnancy interval (IPI), within 18 months of delivery, and unintended pregnancies are both associated with health risks. We studied risk factors for conception after a short IPI among postpartum women who plan long-acting reversible contraception (LARC). STUDY DESIGN: Retrospective review of a cohort of women who delivered at University of Illinois Hospital from 2005 to 2010 and were discharged with a plan for interval LARC...
August 30, 2016: Contraception
Mariwan Baker, David T Cooper, Claus F Behrens
OBJECTIVE: In cervical radiotherapy, it is essential that the uterine position is correctly determined prior to treatment delivery. The aim of this study was to evaluate an autoscan ultrasound (A-US) probe, a motorized transducer creating three-dimensional (3D) images by sweeping, by comparing it with a conventional ultrasound (C-US) probe, where manual scanning is required to acquire 3D images. METHODS: Nine healthy volunteers were scanned by seven operators, using the Clarity(®) system (Elekta, Stockholm, Sweden)...
October 2016: British Journal of Radiology
Dirk Wildemeersch, Norman D Goldstuck, Thomas Hasskamp
Immediate postpartum intrauterine device (IUD) insertion deserves great attention as it can provide immediate, timely and convenient contraception plus the added benefit of preventing repeat unintended pregnancies. Although women post vaginal delivery can benefit from immediate post-placenta contraception, women undergoing Cesarean section clearly need contraception, as an inter-delivery interval shorter than 18 months places them at a high risk for uterine rupture. The main drawback of currently available framed IUD devices for immediate postpartum insertion of an IUD is their high expulsion and displacement rates when inserted immediately postpartum after both vaginal and Cesarean delivery...
January 2016: Developmental Period Medicine
Sarah J Stock, Leanne Bricker, Jane E Norman, Helen M West
BACKGROUND: Immediate delivery of the preterm fetus with suspected compromise may decrease the risk of damage due to intrauterine hypoxia. However, it may also increase the risks of prematurity. OBJECTIVES: To assess the effects of immediate versus deferred delivery of preterm babies with suspected fetal compromise on neonatal, maternal and long-term outcomes. SEARCH METHODS: We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (30 April 2016) and reference lists of retrieved studies...
2016: Cochrane Database of Systematic Reviews
Symphorosa S C Chan, Rachel Y K Cheung, L L Lee, K W Choy, Tony K H Chung
OBJECTIVES: To evaluate the morphological outcome of levator ani muscle (LAM) avulsion 3-5 years after the first delivery and the effect of a second delivery on it. The impact of LAM avulsion on the pelvic floor disorders of women was also studied. METHODS: 666 women who had been assessed for LAM avulsion 8 weeks after first delivery were invited for a follow-up. They were evaluated by Pelvic Floor Distress Inventory (PFDI), POP-Q examination and 3D translabial ultrasound...
July 1, 2016: Ultrasound in Obstetrics & Gynecology
Martina Persson, Stefan Johansson, Sven Cnattingius
BACKGROUND: Maternal overweight and obesity are associated with increased risks of birth-asphyxia-related outcomes, but the mechanisms are unclear. If a change of exposure (i.e., maternal body mass index [BMI]) over time influences risks, this would be consistent with a causal relationship between maternal BMI and offspring risks. Our objective was to investigate associations between changes in maternal BMI between consecutive pregnancies and risks of birth-asphyxia-related outcomes in the second offspring born at term...
June 2016: PLoS Medicine
L E Higgins, L Simcox, C P Sibley, A E P Heazell, E D Johnstone
OBJECTIVES: To test the hypothesis that third trimester placental biometry and volume can be measured by two-dimensional (2D) and three-dimensional (3D) ultrasound in utero, determining which method of measurement was most strongly correlated with true placental size ex vivo. METHODS: Singleton pregnancies underwent placental ultrasound within seven days of delivery (n = 87, 29(+3)-41(+5) weeks). Length and width (linear and curvilinear) and depth were estimated...
June 2016: Placenta
Célia Amorim-Costa, Cristina Costa-Santos, Diogo Ayres-de-Campos, João Bernardes
INTRODUCTION: The longitudinal cardiotocographic (CTG) changes throughout pregnancy in normal fetuses have never been fully described. We aimed at characterizing the evolution of CTG parameters in healthy fetuses, from 24 to 41 weeks of gestation. MATERIAL AND METHODS: A prospective cohort study was conducted in singleton fetuses without structural abnormalities on second-trimester ultrasound. At least one CTG was performed in each of the following intervals: 24-26 weeks(+6d) , 27-29 weeks(+6d) , 30-32 weeks(+6d) , 33-35 weeks(+6d) , 36-38 weeks(+6d) and ≥39 weeks; tracings were analyzed by the OMNIVIEW-SISPORTO 3...
October 2016: Acta Obstetricia et Gynecologica Scandinavica
Lianne Verbeek, Depeng P Zhao, Arjan B Te Pas, Johanna M Middeldorp, Stuart B Hooper, Dick Oepkes, Enrico Lopriore
AIM: To determine the differences in hemoglobin (Hb) levels in the first 2 days after birth in uncomplicated monochorionic twins in relation to birth order and mode of delivery. METHODS: All consecutive uncomplicated monochorionic pregnancies with two live-born twins delivered at our center were included in this retrospective study. We recorded Hb levels at birth and on day 2, and analyzed Hb levels in association with birth order, mode of delivery, and time interval between delivery of twin 1 and 2...
June 2016: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
Ignace Habimana-Kabano, Annelet Broekhuis, Pieter Hooimeijer
The effects of short and long pregnancy intervals on maternal morbidity have hardly been investigated. This research analyses these effects using logistic regression in two steps. First, data from the Rwanda Demographic and Health Survey 2010 are used to study delivery referrals to District hospitals. Second, Kibagabaga District Hospital's maternity records are used to study the effect of inter-pregnancy intervals on maternal morbidity. The results show that both short and long intervals lead to higher odds of being referred because of pregnancy or delivery complications...
September 2015: African Journal of Reproductive Health
Caroline Garcia Forlim, Reynaldo Daniel Pinto, Pablo Varona, Francisco B Rodríguez
In this paper, we apply a real time activity-dependent protocol to study how freely swimming weakly electric fish produce and process the timing of their own electric signals. Specifically, we address this study in the elephant fish, Gnathonemus petersii, an animal that uses weak discharges to locate obstacles or food while navigating, as well as for electro-communication with conspecifics. To investigate how the inter pulse intervals vary in response to external stimuli, we compare the response to a simple closed-loop stimulation protocol and the signals generated without electrical stimulation...
2015: PloS One
Habtamu Demelash, Achenif Motbainor, Dabere Nigatu, Ketema Gashaw, Addisu Melese
BACKGROUND: Low birth weight (LBW) is closely associated with foetal and neonatal mortality and morbidity, inhibite growth and cognitive development and resulted chronic diseases later in life. Many factors affect foetal growth and thus, the birth weight. These factors operate to various extents in different environments and cultures. The prevalence of low birth weight in the study area is the highest in the country. To the investigator's knowledge in Bale Zone, no study has yet been done to elucidate the risk factors for low birth weight using case control study design...
2015: BMC Pregnancy and Childbirth
Florian Vogt, Cecilia Ferreyra, Andrea Bernasconi, Lewis Ncube, Fabian Taziwa, Winnie Marange, David Wachi, Heiko Becher
INTRODUCTION: High retention in care is paramount to reduce vertical human immunodeficiency virus (HIV) infections in prevention of mother-to-child transmission (PMTCT) programmes but remains low in many sub-Saharan African countries. We aimed to assess the effects of community health worker-based defaulter tracing (CHW-DT) on retention in care and mother-to-child HIV transmission, an innovative approach that has not been evaluated to date. METHODS: We analyzed patient records of 1878 HIV-positive pregnant women and their newborns in a rural PMTCT programme in the Tsholotsho district of Zimbabwe between 2010 and 2013 in a retrospective cohort study...
2015: Journal of the International AIDS Society
A P Frick, A Syngelaki, M Zheng, L C Poon, K H Nicolaides
OBJECTIVE: To develop a model based on maternal characteristics and medical history (maternal factors) for the prediction of delivery of large-for-gestational-age (LGA) neonates, and to examine the potential value of first-, second- and third-trimester fetal biometry and biomarkers in improving such a model. METHODS: This was a screening study in 76 300, 54 999, 25 727 and 6181 singleton pregnancies at 11-13, 19-24, 30-34 and 35-37 weeks' gestation, respectively...
March 2016: Ultrasound in Obstetrics & Gynecology
Hadar Rosen, Jon Barrett, Rania Okby, Ori Nevo, Nir Melamed
INTRODUCTION AND HYPOTHESIS: Risk factors for obstetric anal sphincter injuries (OASIS) have been well-established in singleton pregnancies. Considering the unique characteristics of twin deliveries, our aim was to identify risk factors for OASIS that are specific to twins. METHODS: A retrospective study of all vaginal twin deliveries in a tertiary center between 2000 and 2014. Women who experienced OASIS (the OASIS group) were compared with those whose anal sphincter was intact (controls)...
May 2016: International Urogynecology Journal
M H Ring, D F Rabensteiner, J Horwath-Winter, I Boldin, F Schrödl, H Reitsamer, T Haslwanter
Dry eye disease, or keratoconjunctivitis sicca, is a multifactorial syndrome with altered tear film homeostasis leading to ocular irritations. These alterations cause discomfort and stress for the patient, but only a few objective parameters allow for proper differential diagnosis into different subtypes of this condition. The mostly invasively performed standard assessment procedures for tear film diagnosis are manifold, but often correlate quite poorly with the subjectively reported symptoms. Due to the inherent limitations, e...
November 2015: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
Alexa A Lopez, Marzena M Hiler, Eric K Soule, Carolina P Ramôa, Nareg V Karaoghlanian, Thokozeni Lipato, Alison B Breland, Alan L Shihadeh, Thomas Eissenberg
INTRODUCTION: Electronic cigarettes (ECIGs) aerosolize a liquid that usually contains propylene glycol and/or vegetable glycerin, flavorants, and the dependence-producing drug nicotine in various concentrations. This study examined the extent to which ECIG liquid nicotine concentration is related to user plasma nicotine concentration in ECIG-naïve tobacco cigarette smokers. METHODS: Sixteen ECIG-naïve cigarette smokers completed four laboratory sessions that differed by the nicotine concentration of the liquid (0, 8, 18, or 36 mg/ml) that was placed into a 1...
May 2016: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
Laura Sabiani, Renaud Le Dû, Anderson Loundou, Claude d'Ercole, Florence Bretelle, Léon Boubli, Xavier Carcopino
OBJECTIVE: The objective of the study was to evaluate the intra- and interobserver agreement among obstetric experts in court regarding the retrospective review of abnormal fetal heart rate tracings and obstetrical management of patients with abnormal fetal heart rate during labor. STUDY DESIGN: A total of 22 French obstetric experts in court reviewed 30 cases of term deliveries of singleton pregnancies diagnosed with at least 1 hour of abnormal fetal heart rate, including 10 cases with adverse neonatal outcome...
December 2015: American Journal of Obstetrics and Gynecology
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