title: [Hemorrhage after vaginal delivery].
abstract: BACKGROUND
  Primary postpartum haemorrhage, defined as blood loss of more than 500 ml, is an important cause of maternal morbidity and mortality.
  
  
  METHODS
  By the use of information registered in a database in 1997-99 at Rogaland Central Hospital 11,681 women with vaginal births were investigated. In 1997 all women received 10 IU oxytocin routinely after delivery, in 1998 and 1999 the use of oxytocin was restricted to special indications.
  
  
  RESULTS
  Mean bleeding was 363 ml, 1,123 women (9.6%) had a blood loss of more than 500 ml, and 91 (0.8%) of more than 1,500 ml. First delivery, twins, big baby, induction of labour, epidural analgesia, operative vaginal delivery, episiotomy and tears were associated with increased bleeding.
  
  
  CONCLUSIONS
  The risk of postpartum haemorrhage seems to be increased with restricted use of oxytocin after delivery.
authors.affiliation: Nasjonalt Senter for Fostermedisin Regionsykehuset i Trondheim 7006 Trondheim. tme@robin.no
authors.forename: T M
authors.initials: TM
authors.lastname: Eggebø
authors.forename: L K
authors.initials: LK
authors.lastname: Gjessing
mesh_terms: D036861:Delivery, Obstetric / Q000379:methods; D005260:Female; D006767:Hospitals, District; D006801:Humans; D007749:Labor Stage, Third; D009664:Norway; D010121:Oxytocin / Q000008:administration & dosage; D010298:Parity; D006473:Postpartum Hemorrhage / Q000175:diagnosis* / Q000209:etiology / Q000517:prevention & control; D011247:Pregnancy; D012042:Registries; D012307:Risk Factors
chemical_list: D010121:Oxytocin