title: Obstetric conditions and erythropoietin levels.
abstract: OBJECTIVE
  Our purpose was to evaluate and compare erythropoietin levels as related to obstetric conditions, including acute and chronic bleeding, preeclampsia, and multiple gestations.
  
  
  METHODS
  During April 1999 all women in the labor and delivery unit with delivery expected to occur within 24 to 72 hours of admission had erythropoietin and hematocrit values obtained. First-trimester hematocrit values, obstetric problems, medications, and history of vaginal bleeding were obtained from patient interview, examination, and the prenatal record. Statistics were analyzed by the Student t test and chi(2).
  
  
  RESULTS
  During a 1-month period, 302 consecutive women were divided into 5 groups on the basis of obstetric events. Group 1 consisted of women with normal, uncomplicated term singleton gestations (n = 230); group 2, women with acute vaginal bleeding (n = 10); group 3, women with chronic vaginal bleeding (n = 29); group 4, women with multiple gestations (n = 13); and group 5, women with preeclampsia (n = 16). The mean erythropoietin level in group 1 (20. 2 +/- 10.3 mU/mL) was significantly different from values in the other 4 groups (group 2, 74.2 +/- 29.2 mU/mL; group 3, 65.0 +/- 33.0 mU/mL; group 4, 34.8 +/- 16.8 mU/mL; group 5, 43.4 +/- 11.4 mU/mL; P <.001). The admission hematocrit for group 1 (0.369 +/- 0.029) was significantly greater than for groups 2 and 3 (group 2, 0.323 +/- 0. 024; group 3, 0.321 +/- 0.023; P <.001) and significantly lower than for group 5 (0.384 +/- 0.022; P <.05).
  
  
  CONCLUSIONS
  The maternal serum erythropoietin level varies depending on the events occurring during gestation. Acute and chronic bleeding, multiple gestations, and preeclampsia are all associated with various serum erythropoietin levels.
authors.affiliation: Department of Obstetrics and Gynecology, Winthrop-University Hospital, Mineola, NY 11501, USA.
authors.forename: J D
authors.initials: JD
authors.lastname: Goldstein
authors.forename: D J
authors.initials: DJ
authors.lastname: Garry
authors.forename: D
authors.initials: D
authors.lastname: Maulik
mesh_terms: D002585:Cesarean Section; D004921:Erythropoietin / Q000097:blood*; D005260:Female; D005865:Gestational Age; D006400:Hematocrit; D006801:Humans; D011225:Pre-Eclampsia; D011247:Pregnancy; D011248:Pregnancy Complications / Q000097:blood*; D011272:Pregnancy, Multiple; D012016:Reference Values; D014592:Uterine Hemorrhage / Q000097:blood
chemical_list: D004921:Erythropoietin