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The Nordic Obstetric Surveillance Study: a study of complete uterine rupture, abnormally invasive placenta, peripartum hysterectomy, and severe blood loss at delivery

Colmorn, Lotte B.; Petersen, Kathrine B.; Jakobsson, Maija; Lindqvist, Pelle G.; Klungsoyr, Kari; Källén, Karin LU ; Bjarnadottir, Ragnheidur I.; Tapper, Anna-Maija; Bordahl, Per E. and Gottvall, Karin, et al. (2015) In Acta Obstetricia et Gynecologica Scandinavica 94(7). p.734-744
Abstract
Objective: To assess the rates and characteristics of women with complete uterine rupture, abnormally invasive placenta, peripartum hysterectomy, and severe blood loss at delivery in the Nordic countries. Design: Prospective, Nordic collaboration. Setting: The Nordic Obstetric Surveillance Study (NOSS) collected cases of severe obstetric complications in the Nordic countries from April 2009 to August 2012. Sample and methods: Cases were reported by clinicians at the Nordic maternity units and retrieved from medical birth registers, hospital discharge registers, and transfusion databases by using International Classification of Diseases, 10th revision codes on diagnoses and the Nordic Medico-Statistical Committee Classification of Surgical... (More)
Objective: To assess the rates and characteristics of women with complete uterine rupture, abnormally invasive placenta, peripartum hysterectomy, and severe blood loss at delivery in the Nordic countries. Design: Prospective, Nordic collaboration. Setting: The Nordic Obstetric Surveillance Study (NOSS) collected cases of severe obstetric complications in the Nordic countries from April 2009 to August 2012. Sample and methods: Cases were reported by clinicians at the Nordic maternity units and retrieved from medical birth registers, hospital discharge registers, and transfusion databases by using International Classification of Diseases, 10th revision codes on diagnoses and the Nordic Medico-Statistical Committee Classification of Surgical Procedure codes. Main outcome measures: Rates of the studied complications and possible risk factors among parturients in the Nordic countries. Results: The studied complications were reported in 1019 instances among 605362 deliveries during the study period. The reported rate of severe blood loss at delivery was 11.6/10000 deliveries, complete uterine rupture was 5.6/10000 deliveries, abnormally invasive placenta was 4.6/10000 deliveries, and peripartum hysterectomy was 3.5/10000 deliveries. Of the women, 25% had two or more complications. Women with complications were more often >35years old, overweight, with a higher parity, and a history of cesarean delivery compared with the total population. Conclusion: The studied obstetric complications are rare. Uniform definitions and valid reporting are essential for international comparisons. The main risk factors include previous cesarean section. The detailed information collected in the NOSS database provides a basis for epidemiologic studies, audits, and educational activities. (Less)
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keywords
Abnormally invasive placenta, uterine rupture, multiple blood, transfusions, postpartum hemorrhage, peripartum hysterectomy
in
Acta Obstetricia et Gynecologica Scandinavica
volume
94
issue
7
pages
734 - 744
publisher
Wiley-Blackwell
external identifiers
  • wos:000355868600010
  • scopus:84930414643
ISSN
1600-0412
DOI
10.1111/aogs.12639
language
English
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yes
id
5e793daf-c52c-424c-bff3-fea3d69d188c (old id 7602002)
date added to LUP
2015-08-03 10:08:32
date last changed
2017-11-19 04:02:03
@article{5e793daf-c52c-424c-bff3-fea3d69d188c,
  abstract     = {Objective: To assess the rates and characteristics of women with complete uterine rupture, abnormally invasive placenta, peripartum hysterectomy, and severe blood loss at delivery in the Nordic countries. Design: Prospective, Nordic collaboration. Setting: The Nordic Obstetric Surveillance Study (NOSS) collected cases of severe obstetric complications in the Nordic countries from April 2009 to August 2012. Sample and methods: Cases were reported by clinicians at the Nordic maternity units and retrieved from medical birth registers, hospital discharge registers, and transfusion databases by using International Classification of Diseases, 10th revision codes on diagnoses and the Nordic Medico-Statistical Committee Classification of Surgical Procedure codes. Main outcome measures: Rates of the studied complications and possible risk factors among parturients in the Nordic countries. Results: The studied complications were reported in 1019 instances among 605362 deliveries during the study period. The reported rate of severe blood loss at delivery was 11.6/10000 deliveries, complete uterine rupture was 5.6/10000 deliveries, abnormally invasive placenta was 4.6/10000 deliveries, and peripartum hysterectomy was 3.5/10000 deliveries. Of the women, 25% had two or more complications. Women with complications were more often >35years old, overweight, with a higher parity, and a history of cesarean delivery compared with the total population. Conclusion: The studied obstetric complications are rare. Uniform definitions and valid reporting are essential for international comparisons. The main risk factors include previous cesarean section. The detailed information collected in the NOSS database provides a basis for epidemiologic studies, audits, and educational activities.},
  author       = {Colmorn, Lotte B. and Petersen, Kathrine B. and Jakobsson, Maija and Lindqvist, Pelle G. and Klungsoyr, Kari and Källén, Karin and Bjarnadottir, Ragnheidur I. and Tapper, Anna-Maija and Bordahl, Per E. and Gottvall, Karin and Thurn, Lars and Gissler, Mika and Krebs, Lone and Langhoff-Roos, Jens},
  issn         = {1600-0412},
  keyword      = {Abnormally invasive placenta,uterine rupture,multiple blood,transfusions,postpartum hemorrhage,peripartum hysterectomy},
  language     = {eng},
  number       = {7},
  pages        = {734--744},
  publisher    = {Wiley-Blackwell},
  series       = {Acta Obstetricia et Gynecologica Scandinavica},
  title        = {The Nordic Obstetric Surveillance Study: a study of complete uterine rupture, abnormally invasive placenta, peripartum hysterectomy, and severe blood loss at delivery},
  url          = {http://dx.doi.org/10.1111/aogs.12639},
  volume       = {94},
  year         = {2015},
}