title: Helicobacter pylori infection and platelet counts during pregnancy.
abstract: OBJECTIVE
  To investigate whether there is any correlation between Helicobacter pylori infection and platelet counts during pregnancy.
  
  
  METHODS
  One hundred and twenty pregnant women without any complications were evaluated. Platelet counts were determined during pregnancy and postpartum. H. pylori infection was assessed by the detection of serum antibodies at the 3rd day postpartum. Statistically significant differences of platelet count between H. pylori-positive and -negative patients were determined.
  
  
  RESULTS
  H. pylori infection was found in 29 of 120 (24.2%). Platelet counts in the 3rd trimester were 22.7+/-4.7 x 10(3)/microl in H. pylori-positive group and 22.8+/-5.6 x 10(3)/microl in negative group (p=0.98). Platelet count in the 3rd trimester in positive and negative patients were 93+/-17% and 94+/-20%, respectively, of that of the 1st trimester (p=0.92). The incidence of hyperemesis gravidarum in both groups was not significant (p=0.28).
  
  
  CONCLUSIONS
  A correlation between H. pylori infection and thrombocytopenia during pregnancy was not found in this study.
authors.affiliation: Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan.
authors.forename: O
authors.initials: O
authors.lastname: Fukui
authors.forename: K
authors.initials: K
authors.lastname: Shimoya
authors.forename: T
authors.initials: T
authors.lastname: Shimizu
authors.forename: H
authors.initials: H
authors.lastname: Fukuda
authors.forename: K
authors.initials: K
authors.lastname: Wasada
authors.forename: Y
authors.initials: Y
authors.lastname: Murata
mesh_terms: D005260:Female; D005831:Genital Diseases, Female / Q000209:etiology / Q000382:microbiology; D016481:Helicobacter Infections / Q000150:complications*; D016480:Helicobacter pylori; D006470:Hemorrhage / Q000209:etiology / Q000382:microbiology; D006801:Humans; D006939:Hyperemesis Gravidarum / Q000382:microbiology*; D010976:Platelet Count; D011247:Pregnancy; D011248:Pregnancy Complications / Q000209:etiology*; D013921:Thrombocytopenia / Q000382:microbiology*