title: Resumption of menses in anorexia nervosa.
abstract: OBJECTIVE
  To determine factors associated with resumption of menses (ROM) in adolescents with anorexia nervosa.
  
  
  METHODS
  Cohort study with 2-year follow-up.
  
  
  METHODS
  Tertiary care referral center.
  
  
  METHODS
  Consecutive sample of 100 adolescent girls with anorexia nervosa.
  
  
  METHODS
  Body weight, percent body fat, and luteinizing hormone, follicle-stimulating hormone, and estradiol levels were measured at baseline and every 3 months until ROM (defined as 2 or more consecutive spontaneous menstrual cycles). Treatment consisted of a combination of medical, nutritional, and psychiatric intervention aimed at weight gain and resolution of psychological conflicts.
  
  
  METHODS
  Body weight, body composition, and hormonal status at ROM.
  
  
  RESULTS
  Menses resumed at a mean (+/-SD) of 9.4 +/- 8.2 months after patients were initially seen and required a weight of 2.05 kg more than the weight at which menses were lost. Mean (+/-SD) percent of standard body weight at ROM was 91.6% +/- 9.1%, and 86% of patients resumed menses within 6 months of achieving this weight. At 1-year follow-up, 47 (68%) of 69 patients had resumed menses and 22 (32%) remained amenorrheic. No significant differences were seen in body weight, body mass index, or percent body fat at follow-up in those who resumed menses by 1 year compared with those who had not. Subjects who remained amenorrheic at 1 year had lower levels of luteinizing hormone (P < .001) and follicle-stimulating hormone (P < .05) at baseline and lower levels of luteinizing hormone (P < .01) and estradiol (P < .001) at follow-up. At follow-up, a serum estradiol level of more than 110 pmol/L (30 pg/mL) was associated with ROM (relative risk, 4.6; 95% confidence interval, 1.9-11.2).
  
  
  CONCLUSIONS
  A weight approximately 90% of standard body weight was the average weight at which ROM occurred and is a reasonable treatment goal weight, because 86% of patients who achieved this goal resumed menses within 6 months. Resumption of menses required restoration of hypothalamic-pituitary-ovarian function, which did not depend on the amount of body fat. Serum estradiol levels at follow-up best assess ROM.
authors.affiliation: Department of Pediatrics, Schneider Children's Hospital, Long Island Jewish Medical Center, Albert Einstein College of Medicine, New Hyde Park, NY, USA.
authors.forename: N H
authors.initials: NH
authors.lastname: Golden
authors.forename: M S
authors.initials: MS
authors.lastname: Jacobson
authors.forename: J
authors.initials: J
authors.lastname: Schebendach
authors.forename: M V
authors.initials: MV
authors.lastname: Solanto
authors.forename: S M
authors.initials: SM
authors.lastname: Hertz
authors.forename: I R
authors.initials: IR
authors.lastname: Shenker
mesh_terms: D000273:Adipose Tissue; D000293:Adolescent; D000328:Adult; D000568:Amenorrhea / Q000097:blood / Q000209:etiology / Q000503:physiopathology*; D000856:Anorexia Nervosa / Q000097:blood / Q000150:complications / Q000503:physiopathology* / Q000523:psychology*; D001835:Body Weight; D002648:Child; D004958:Estradiol / Q000097:blood; D015444:Exercise; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood; D008598:Menstruation; D013997:Time Factors
chemical_list: D004958:Estradiol; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone