Survival and neonatal morbidity among extremely preterm born infants in relation to gestational age based on the last menstrual period or ultrasonographic examination
(2014) In Journal of Perinatal Medicine 42(2). p.247-253- Abstract
- Objectives: The aim of this study was to investigate the potential impact of gestational age (GA) estimation on the basis of the last menstrual period (LMP) in comparison with GA based on ultrasound examination on rates of survival and neonatal morbidity among extremely preterm infants. Methods: The Swedish national registry of infants born extremely preterm (Extremely Preterm Infants in Sweden Study), including infants born before 27 weeks of gestation, was used to identify 645 infants with available information. Incidences of stillbirth, survival, small for GA (SGA), and major neonatal morbidity were calculated in relationship to the GA estimated by each of the approaches. Results: Pregnancies, in general, appeared to be longer when GA... (More)
- Objectives: The aim of this study was to investigate the potential impact of gestational age (GA) estimation on the basis of the last menstrual period (LMP) in comparison with GA based on ultrasound examination on rates of survival and neonatal morbidity among extremely preterm infants. Methods: The Swedish national registry of infants born extremely preterm (Extremely Preterm Infants in Sweden Study), including infants born before 27 weeks of gestation, was used to identify 645 infants with available information. Incidences of stillbirth, survival, small for GA (SGA), and major neonatal morbidity were calculated in relationship to the GA estimated by each of the approaches. Results: Pregnancies, in general, appeared to be longer when GA was estimated by LMP than by ultrasound (17.2% of the pregnancies were longer than 27 weeks). The incidences of stillbirth, neonatal death, and major neonatal morbidity in relationship to GA were similar for both groups. The risks for SGA were elevated when GA according to ultrasound examination was at least 7 days shorter than GA based on the LMP. Conclusions: In our cohort of infants born extremely preterm, estimation of GA on the basis of LMP indicated a longer pregnancy than estimated by ultrasound but did not influence the incidences of neonatal survival and morbidity. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4411089
- author
- Simic, Marija ; Amer-Wahlin, Isis ; Lagercrantz, Hugo ; Marsal, Karel LU and Källén, Karin LU
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Extremely preterm infants, gestational age estimation, pregnancy, pregnancy dating, ultrasound
- in
- Journal of Perinatal Medicine
- volume
- 42
- issue
- 2
- pages
- 247 - 253
- publisher
- De Gruyter
- external identifiers
-
- wos:000332843500014
- scopus:84898627474
- pmid:24259234
- ISSN
- 1619-3997
- DOI
- 10.1515/jpm-2013-0061
- language
- English
- LU publication?
- yes
- id
- 5593ed45-945b-4572-8ac7-da708db1c6b7 (old id 4411089)
- date added to LUP
- 2016-04-01 10:03:27
- date last changed
- 2022-03-27 04:28:34
@article{5593ed45-945b-4572-8ac7-da708db1c6b7, abstract = {{Objectives: The aim of this study was to investigate the potential impact of gestational age (GA) estimation on the basis of the last menstrual period (LMP) in comparison with GA based on ultrasound examination on rates of survival and neonatal morbidity among extremely preterm infants. Methods: The Swedish national registry of infants born extremely preterm (Extremely Preterm Infants in Sweden Study), including infants born before 27 weeks of gestation, was used to identify 645 infants with available information. Incidences of stillbirth, survival, small for GA (SGA), and major neonatal morbidity were calculated in relationship to the GA estimated by each of the approaches. Results: Pregnancies, in general, appeared to be longer when GA was estimated by LMP than by ultrasound (17.2% of the pregnancies were longer than 27 weeks). The incidences of stillbirth, neonatal death, and major neonatal morbidity in relationship to GA were similar for both groups. The risks for SGA were elevated when GA according to ultrasound examination was at least 7 days shorter than GA based on the LMP. Conclusions: In our cohort of infants born extremely preterm, estimation of GA on the basis of LMP indicated a longer pregnancy than estimated by ultrasound but did not influence the incidences of neonatal survival and morbidity.}}, author = {{Simic, Marija and Amer-Wahlin, Isis and Lagercrantz, Hugo and Marsal, Karel and Källén, Karin}}, issn = {{1619-3997}}, keywords = {{Extremely preterm infants; gestational age estimation; pregnancy; pregnancy dating; ultrasound}}, language = {{eng}}, number = {{2}}, pages = {{247--253}}, publisher = {{De Gruyter}}, series = {{Journal of Perinatal Medicine}}, title = {{Survival and neonatal morbidity among extremely preterm born infants in relation to gestational age based on the last menstrual period or ultrasonographic examination}}, url = {{https://lup.lub.lu.se/search/files/1521117/4777593.pdf}}, doi = {{10.1515/jpm-2013-0061}}, volume = {{42}}, year = {{2014}}, }