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inter delivery interval

Shyama Appareddy, Jason Pryor, Beth Bailey
OBJECTIVE: Short interpregnancy interval (IPI), <18 months between pregnancies, is a potential cause of adverse delivery and birth outcomes, and may be a particular issue among those with other risks. Our goal was to examine IPI and delivery/infant complications in Tennessee. METHODS: Birth certificate/vital records data included 101,912 women with a previous delivery. IPI groups (<6, 6-12, 12-18, 18-60 months) were compared on outcomes. RESULTS: Thirty-nine percent of the deliveries had IPI <18 months, 9% were <6 months, rates 11% and 27% higher than nationally...
December 1, 2016: Journal of Maternal-fetal & Neonatal Medicine
Cathrine Ebbing, Svein Rasmussen, Rolv Skjaerven, Lorentz M Irgens
INTRODUCTION: Hypertensive disorders of pregnancy (HDP) tend to recur from one pregnancy to the next. The aims of the study were to assess the recurrence risk according to type of HDP defined by gestational age at birth and to examine whether recurrence is associated with the following additional risk factors for HDP: maternal age, smoking, inter delivery interval, diabetes, body mass index, as well as fetal growth restriction, and to assess temporal trends in these associations. MATERIAL AND METHODS: All women with two singleton births in the Medical Birth Registry of Norway 1967-2012 (n= 742 980) were included in this population based cohort study...
November 22, 2016: Acta Obstetricia et Gynecologica Scandinavica
M A Piliero, F Pennazio, M G Bisogni, N Camarlinghi, P G Cerello, A Del Guerra, V Ferrero, E Fiorina, G Giraudo, M Morrocchi, C Peroni, G Pirrone, G Sportelli, R Wheadon
Treatment quality assessment is a crucial feature for both present and next-generation ion therapy facilities. Several approaches are being explored, based on prompt radiation emission or on PET signals by [Formula: see text]-decaying isotopes generated by beam interactions with the body. In-beam PET monitoring at synchrotron-based ion therapy facilities has already been performed, either based on inter-spill data only, to avoid the influence of the prompt radiation, or including both in-spill and inter-spill data...
December 7, 2016: Physics in Medicine and Biology
K Gupta, S Mitra, S Kazal, R Saroa, V Ahuja, P Goel
BACKGROUND: Use of i.v. paracetamol for postoperative pain is well documented, but it is unclear if it can reduce the consumption of opioids during patient-controlled epidural analgesia (PCEA) in labouring parturients. METHODS: In this randomized, double-blind, placebo-controlled clinical trial conducted in a tertiary care hospital, (80)parturients were randomly assigned to two groups of 40 each, to receive either 1000 mg (100 ml) i.v. paracetamol or 100 ml normal saline as placebo, 30 min before the procedure...
November 2016: British Journal of Anaesthesia
Iqbal Al-Zirqi, Anne Kjersti Daltveit, Lisa Forsén, Babill Stray-Pedersen, Siri Vangen
BACKGROUND: Complete uterine rupture is a rare peripartum complication associated with a catastrophic outcome. Because of its rarity, knowledge about its risk factors is not very accurate. Most previous studies were small and over a limited time interval. Moreover, international diagnostic coding was used in most studies. These codes are not able to differentiate between the catastrophic complete type and less catastrophic partial type. Complete uterine rupture is expected to increase as the rate of cesarean delivery increases...
October 22, 2016: American Journal of Obstetrics and Gynecology
Tory R Spindle, Marzena M Hiler, Alison B Breland, Nareg V Karaoghlanian, Alan L Shihadeh, Thomas Eissenberg
INTRODUCTION: Electronic cigarettes e-cigarettes aerosolize a liquid solution often containing nicotine. e-cigarette nicotine delivery may be influenced by user puffing behaviors ("puff topography"). E-cigarette puff topography can be recorded using mouthpiece-based computerized systems. The present study sought to examine the extent to which these systems influence e-cigarette nicotine delivery and other e-cigarette associated acute effects under ad libitum use conditions. METHODS: Plasma nicotine concentration, heart rate, and subjective effects were assessed in 29 experienced e-cigarette users using their preferred e-cigarette battery and liquid (≥12mg/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 interpregnancy 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: A 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 was performed...
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
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