scholarly journals Gestational age-specific perinatal mortality rates for assisted reproductive technology (ART) and other births

2017 ◽  
Vol 33 (2) ◽  
pp. 320-327 ◽  
Author(s):  
Abrar A Chughtai ◽  
Alex Y Wang ◽  
Lisa Hilder ◽  
Zhuoyang Li ◽  
Kei Lui ◽  
...  
Keyword(s):  
Assisted Reproductive Technology ◽  
Perinatal Mortality ◽  
Gestational Age ◽  
Mortality Rates ◽  
Reproductive Technology

scholarly journals Assisted Reproductive Technology and Perinatal Mortality: Selected States (2006–2011)

2021 ◽  
Author(s):  
Jeani Chang ◽  
Yujia Zhang ◽  
Sheree L. Boulet ◽  
Sara B. Crawford ◽  
Glenn E. Copeland ◽  
...  
Keyword(s):  
Assisted Reproductive Technology ◽  
Perinatal Mortality ◽  
Health Care Providers ◽  
Perinatal Death ◽  
Mortality Rates ◽  
Reproductive Technology ◽  
Care Providers ◽  
Perinatal Deaths ◽  
Adjusted Risk ◽  
Adjusted Risk Ratio

Objective This study aimed to compare trends and characteristics of assisted reproductive technology (ART) and non-ART perinatal deaths and to evaluate the association of perinatal mortality and method of conception (ART vs. non-ART) among ART and non-ART deliveries in Florida, Massachusetts, and Michigan from 2006 to 2011. Study Design Retrospective cohort study using linked ART surveillance and vital records data from Florida, Massachusetts, and Michigan. Results During 2006 to 2011, a total of 570 ART-conceived perinatal deaths and 25,158 non-ART conceived perinatal deaths were identified from the participating states. Overall, ART perinatal mortality rates were lower than non-ART perinatal mortality rates for both singletons (7.0/1,000 births vs. 10.2/1,000 births) and multiples (22.8/1,000 births vs. 41.2/1,000 births). At <28 weeks of gestation, the risk of perinatal death among ART singletons was significantly lower than non-ART singletons (adjusted risk ratio [aRR] = 0.46, 95% confidence interval [CI]: 0.26–0.85). Similar results were observed among multiples at <28 weeks of gestation (aRR = 0.64, 95% CI: 0.45–0.89). Conclusion Our findings suggest that ART use is associated with a decreased risk of perinatal deaths prior to 28 weeks of gestation, which may be explained by earlier detection and management of fetal and maternal conditions among ART-conceived pregnancies. These findings provide valuable information for health care providers, including infertility specialists, obstetricians, and pediatricians when counseling ART users on risk of treatment. Key Points

Comparability of published perinatal mortality rates in Western Europe: the quantitative impact of differences in gestational age and birthweight criteria

2001 ◽  
Vol 108 (12) ◽  
pp. 1237-1245 ◽  
Author(s):  
Wilco C. Graafmans ◽  
Jan-Hendrik Richardus ◽  
Alison Macfarlane ◽  
Marisa Rebagliato ◽  
Beatrice Blondel ◽  
...  
Keyword(s):  
Perinatal Mortality ◽  
Gestational Age ◽  
Western Europe ◽  
Mortality Rates ◽  
Quantitative Impact

scholarly journals Evaluation of Factors Affecting Perinatal Mortality in Patients with HELLP Syndrome

2021 ◽  
pp. 1-8
Author(s):  
REYHAN GÜNDÜZ ◽  
SENEM YAMAN TUNÇ ◽  
MEHMET SAİT İÇEN ◽  
SABAHATTİN ERTUĞRUL ◽  
TALİP GÜL
Keyword(s):  
Intensive Care ◽  
Birth Weight ◽  
Perinatal Mortality ◽  
Gestational Age ◽  
Hellp Syndrome ◽  
Neonatal Intensive Care ◽  
Mortality Rates ◽  
Apgar Scores ◽  
Factors Affecting ◽  
Gestational Age At Delivery

OBJECTIVE: To determine the perinatal mortality rate in patients with HELLP syndrome in our clinic and to investigate the factors affecting perinatal mortality. It also makes recommendations to reduce perinatal mortality and contributes to the literature. STUDY DESIGN: Three-hundred-and-eighty-three patients were retrospectively evaluated in this cohort study. The patients' demographic, clinical data, laboratory results, gestational week at delivery, method of delivery, neonatal birth weight, fetal gender, 1- and 5-minute APGAR scores, place of delivery, maternal morbidity, mortality rates, and perinatal mortality rates were recorded. The relationship of these factors with perinatal mortality was investigated. RESULTS: The rate of perinatal mortality was determined as 6%. Patients with HELLP syndrome who experienced perinatal mortality showed significantly lower birth weight, gestational age at delivery, and 1- and 5-minute APGAR score values (p<0.05). With respect to methods of delivery, we determined that vaginal delivery was linked to a significantly higher rate of perinatal mortality (p<0.001). Gestational age at delivery, birth weight, 1- and 5-minute APGAR scores were negatively correlated with perinatal mortality. Logistic regression revealed the APGAR score at 5 minutes as the most reliable independent predictive finding for perinatal mortality. CONCLUSION: We think that to decrease perinatal mortality rates, maternal and fetal well-being in patients with HELLP syndrome should be closely monitored and delivery and follow-up should take place at tertiary health institutions after maternal and neonatal intensive care arrangements are made. Particularly, neonates with low 5-minute APGAR scores in the postpartum evaluation of neonatal condition are recommended to be followed-up at the neonatal intensive care unit.

Triplet Pregnancy: Is the Mode of Conception Related to Perinatal Outcomes?

2015 ◽  
Vol 18 (3) ◽  
pp. 321-327 ◽  
Author(s):  
Kristy M. Fennessy ◽  
Lex W. Doyle ◽  
Kentia Naud ◽  
Karen Reidy ◽  
Mark P. Umstad
Keyword(s):  
Assisted Reproductive Technology ◽  
Perinatal Outcomes ◽  
Mortality Rates ◽  
Reproductive Technology ◽  
Neonatal Outcomes ◽  
Lower Mortality ◽  
Triplet Pregnancy ◽  
Eligibility Criteria ◽  
Neonatal Complications ◽  
Maternal And Neonatal Outcomes

Many triplets are conceived as a consequence of assisted reproductive technology (ART). Concerns have been raised that triplet pregnancies conceived by ART are more complicated than those conceived spontaneously. The purpose of this study was to evaluate all triplet pregnancies managed over a 12-year period to determine if there were any differences in outcome based on the mode of conception. All triplet pregnancies between 1999 and 2011 that reached at least 20 weeks’ gestation and that were managed at the Royal Women's Hospital (RWH), Melbourne, Victoria were identified. Maternal and neonatal outcomes were compared between ART conceived and spontaneously conceived triplets. In the study period, 53 sets of triplets managed in our institution met the eligibility criteria. Twenty-five triplet sets were conceived by ART and 28 were conceived spontaneously. More ART conceptions resulted in trichorionic triamniotic (TCTA) triplets than did spontaneous conceptions (p= .015). There were no differences between ART and spontaneously conceived triplets for any of the maternal or neonatal complications studied. Trichorionic (TC) triplets delivered at a later gestation than other triplets: 32.1 (SD2.9) versus 30.4 (SD3.9) weeks (p= .08). TC triplets were significantly less likely to die than monochorionic (MC) or dichorionic (DC) triplets: 3/93 (3%) versus 13/66 (20%) (p= .025). In conclusion, triplets conceived by ART are more likely to have TCTA placentation and TCTA triplet sets had lower mortality rates than other triplet combinations. Outcomes for triplets conceived by ART were similar to those of triplets conceived spontaneously.

scholarly journals Perinatal Mortality in Term and Preterm Twin and Singleton Births

Twin Research ◽  
2002 ◽  
Vol 5 (4) ◽  
pp. 260-264 ◽  
Author(s):  
Jennifer C. Payne ◽  
M. Karen Campbell ◽  
Orlando DaSilva ◽  
John Koval
Keyword(s):  
Perinatal Mortality ◽  
Gestational Age ◽  
Age Distribution ◽  
Mortality Rates ◽  
Large Sample Size ◽  
Data Set ◽  
Perinatal Center ◽  
Mother’S Age ◽  
Definition Of ◽  
The Relationship

AbstractAlthough, in general, twins have higher perinatal mortality rates than singletons, preterm twins have lower perinatal mortality rates than singletons of the same birth weight or gestational age. This study investigated the hypotheses that this paradoxical twin advantage: 1) is due to gestational age distribution differences between the singleton and twin populations, and 2) is due to increased likelihood of birth having occurred in a tertiary perinatal center. A pre-existing, time-limited data set of all births in the province of Ontario in odd years between 1979 and 1985 was chosen for this study because of the large sample size (n = 618,579). Multivariable logistic regression of the relationship between perinatal mortality and twin status was controlled for mother’s age, hospital level and gestational age. Findings confirm the lower mortality of preterm twins. After controlling for level of hospital of birth this difference remained, suggesting that level of hospital of birth was not a major factor responsible for the twin advantage. Analyses in which gestational age was standardized indicate that, for those whose gestational age was less than 2 SD below the mean for their particular group (twin or singleton), twins were actually at higher risk than singletons. These results support hypothesis 1 and do not strongly support hypothesis 2. The results also support earlier authors’ suggestions that the definition of term birth should be different for twins and singletons

scholarly journals Differential effect of assisted reproductive technology and small-for-gestational age on fetal cardiac remodeling

2017 ◽  
Vol 50 (1) ◽  
pp. 63-70 ◽  
Author(s):  
B. Valenzuela-Alcaraz ◽  
F. Crispi ◽  
M. Cruz-Lemini ◽  
B. Bijnens ◽  
L. García-Otero ◽  
...  
Keyword(s):  
Assisted Reproductive Technology ◽  
Gestational Age ◽  
Small For Gestational Age ◽  
Cardiac Remodeling ◽  
Differential Effect ◽  
Reproductive Technology
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