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Historical Development of HRV Analysis
Published in Herbert F. Jelinek, David J. Cornforth, Ahsan H. Khandoker, ECG Time Series Variability Analysis, 2017
CH is defined as a blood pressure of more than 140/90 mmHg on two measurements before the 20th week of gestation or persisting beyond 12 weeks after delivery. PIH describes the development of hypertension after 20 weeks of gestation without proteinuria whereas PE is a multisystem disorder characterized by hypertension in combination with proteinuria in the second half of pregnancy (Zamorski and Green 2001; NHBPEP 2000; Leeman and Fontaine 2008). Although the etiology of PE is not yet fully understood, it is well established that PE is accompanied by low circulating blood volume and an increase in peripheral vascular resistance (Roberts and Redman 1993; Borghi et al. 2011). It is associated with disturbed placental development followed by endothelial dysfunction and can result in severe complications for the mother such as cerebral hemorrhage, lung edema, or liver hemorrhage and rupture. For the fetus, intrauterine growth restriction and preterm birth are possible consequences leading to a high risk of infant mortality or morbidity (VanWijk et al. 2000; NHBPEP 2000).
Preterm birth prediction using electrohysterography with local binary patterns
Published in Debatosh Guha, Badal Chakraborty, Himadri Sekhar Dutta, Computer, Communication and Electrical Technology, 2017
Finky Francis, M. Bedeeuzzaman, Thasneem Fathima
Studies by UNICEF (2013) reported that India stands first in the number of neonatal deaths from preterm complications. Preterm deliveries remain as a common problem in the field of obstetrics. It increases the rate of infant morbidity and mortality. By the World Health Organisation (WHO), Preterm birth, also known as premature birth or delivery, is described as the delivery of babies who are born, alive, before 37 completed weeks of gestation. Then, the other one, Term births are the live delivery of babies after 37 weeks, and before 42 weeks (Hussain et al., 2015). Preterm deliveries will cause long term health problems.
Exposure to firework chemicals from production factories in pregnant women and risk of preterm birth occurrence in Liuyang, China
Published in Journal of Toxicology and Environmental Health, Part A, 2018
Xun Li, Hongzhuan Tan, Meiling Luo, Xinrui Wu, Xin Huang, Shujin Zhou, Lin Shen, Yue He, Yi Liu, Li Hu, Mengshi Chen, Shimin Hu, Shi Wu Wen
Preterm birth in humans defined as birth prior to 37 completed weeks of gestation is significantly associated with increased perinatal morbidity and mortality, as well as impaired developmental and consequent adverse chronic health effects (Beck et al. 2010). The preterm birth rate varies amongst populations ranging globally at 5–15% (Beck et al. 2010; Goldenberg et al. 2008; Sentilhes et al. 2017) and in China from 2.5% in Jiangsu Province to 7.6% in Hong Kong (Newnham et al. 2011). The etiology of preterm birth is not well understood, and thus, specific preventive and therapeutic strategies are still needed (Frey and Klebanoff 2016; Sentilhes et al. 2017).
Effects of national smoke-free legislation on the rates of preterm births and low birthweights in Taiwan
Published in Journal of Toxicology and Environmental Health, Part A, 2018
Chih-Cheng Chen, Yu-Tung Huang, Chun-Yuh Yang
The outcome variables for this study were preterm births and low birth weight (LBW). A preterm birth was defined as having a gestational age (based on dates of last menstrual period) of less than 37 completed weeks. LBW was defined in infants weighing <2500 g. Data were obtained on the prevalence of preterm births and LBW for the years between 1978 and 2016 from the Health Promotion Administration (HPA), Ministry of Health and Welfare, Health Indicator 123 (https://olap.hpa.gov.tw/index.aspx). Twin and multiple pregnancies were excluded.
Physically strenuous work during pregnancy and risk of preterm birth
Published in Archives of Environmental & Occupational Health, 2018
Iben Risager Knudsen, Jens Peter Bonde, Sesilje Bondo Petersen
Information on preterm birth was extracted from the Danish Medical Birth Registry, where gestational age is registered along with other birth information such as birth weight, birth length, complications, malformations, and so on. Preterm birth was defined, according to WHO and international literature, as babies born alive between gestational weeks 22 and 37.4 Very preterm birth was defined as delivery between gestational weeks 22 and 32.