title: Endometrial stripe thickness in tubal and intrauterine pregnancies.
abstract: OBJECTIVE
  To evaluate endometrial stripe thickness (EST) among patients with tubal pregnancy (TP) and intrauterine pregnancy (IUP).
  
  
  METHODS
  Historical cohort.
  
  
  METHODS
  City hospital.
  
  
  METHODS
  Ninety-four women suspected to have TP.
  
  
  METHODS
  Serum betaHCG and sonographic EST measurements.
  
  
  METHODS
  Comparison of age, gestational age (GA), EST, and log beta HCG.
  
  
  RESULTS
  The two groups of women, 65 with TP and 29 with IUP, had similar mean ages (+/-SD) of 28.6 +/- 5.7 and 28.6 +/- 6.1, respectively. The median values of GA in the 2 groups were similar, 46.6 and 44.6 d, respectively. The mean values for EST (+/-SD), adjusted for GA, were significantly different: 9.9 +/- 5.9 mm in the TP group and 12.6 +/- 5.3 mm in the IUP group. The mean values (+/-SD) of log beta HCG in the 2 groups also differed significantly: 6.90 +/- 1.29 and 7.52 +/- 0.97, respectively. No correlation was found between EST and GA or log beta HCG within either group.
  
  
  CONCLUSIONS
  The mean EST in women with TP was significantly smaller than in women with IUP. The wide range of EST values and their overlap precludes the utilization of EST as a single feature in the diagnosis of a tubal pregnancy.
authors.affiliation: Department of Obstetrics and Gynecology, Jacobi Medical Center, Albert Einstein School of Medicine, Bronx, New York, USA. mlevgur@maimonidesmed.org
authors.forename: M
authors.initials: M
authors.lastname: Levgur
authors.forename: T
authors.initials: T
authors.lastname: Tsai
authors.forename: K
authors.initials: K
authors.lastname: Kang
authors.forename: J
authors.initials: J
authors.lastname: Feldman
authors.forename: L A
authors.initials: LA
authors.lastname: Kory
mesh_terms: D000328:Adult; D018997:Chorionic Gonadotropin, beta Subunit, Human / Q000097:blood; D015331:Cohort Studies; D004717:Endometrium / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D011247:Pregnancy / Q000097:blood / Q000502:physiology*; D011271:Pregnancy, Ectopic / Q000097:blood / Q000000981:diagnostic imaging*; D012016:Reference Values; D016216:Ultrasonography, Prenatal
chemical_list: D018997:Chorionic Gonadotropin, beta Subunit, Human