title: Patients' age, myoma size, myoma location, and interval between myomectomy and pregnancy may influence the pregnancy rate and live birth rate after myomectomy.
abstract: OBJECTIVE
  To investigate which clinical characteristics will influence the pregnancy rate and live birth rate after myomectomy.
  
  
  METHODS
  Data of clinical characteristics and reproductive outcome from 471 patients who wished to conceive and who underwent abdominal or laparoscopic myomectomy in the Obstetrics and Gynecology Hospital of Fudan University from January 2008 to June 2012 were retrospectively analyzed.
  
  
  RESULTS
  Average age in the pregnancy group (30.0±3.7 years) and the nonpregnancy group (31.2±4.1 years) was statistically different (P=.000). The diameter of the biggest myoma had a positive relationship with the pregnancy rate when it was <10 cm (rs=0.095, P=.039). Abortions before myomectomy, operation type, number, location, and classification of myomas, uterine cavity penetration, and uterine volume seemed not to influence the pregnancy rate (P>.05). The location of the myoma may influence the live birth rate after myomectomy (rs=0.198, P=.002). Anterior and posterior myomas were associated with higher live birth rates than other locations (P=.001). The average interval between myomectomy and pregnancy was 16.0±8.7 months, and there was no difference between the abdominal (17.2±8.6 months) and laparoscopic (15.2±8.8 months) groups (P=.102). The interval in the live birth group was 15.0±8.4 months, and that in the non-live birth group was 18.9±9.3 months; the difference was significant (P=.005).
  
  
  CONCLUSIONS
  Patients' age, myoma size and location, and interval between myomectomy and pregnancy may influence the pregnancy rate and live birth rate after myomectomy.
authors.affiliation: Department of Gynecology, The Obstetrics and Gynecology Hospital of Fudan University , Shanghai, People's Republic of China .
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhang
authors.forename: Ke Qin
authors.initials: KQ
authors.lastname: Hua
mesh_terms: D000028:Abortion, Induced / Q000706:statistics & numerical data; D000328:Adult; D000367:Age Factors; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D010535:Laparoscopy / Q000706:statistics & numerical data; D009214:Myoma / Q000601:surgery*; D011247:Pregnancy; D011256:Pregnancy Outcome / Q000453:epidemiology*; D018873:Pregnancy Rate; D012189:Retrospective Studies; D061685:Time-to-Pregnancy; D063186:Uterine Myomectomy / Q000706:statistics & numerical data*; D014594:Uterine Neoplasms / Q000453:epidemiology* / Q000601:surgery*