title: [The incidence of uterine leiomyomas in pregnancy and their influence upon its course].
abstract: OBJECTIVE
  Uterine myomas are observed in pregnancy more frequently now than in the past. With the increasing age of the obstetric population and the widespread use of sonography, uterine myomas are more frequently detected during pregnancy. The objective of the study was to assess the incidence of the uterine myomas during pregnancy and their influence upon the pregnancy.
  
  
  RESULTS
  Among 670 women who delivered by cesarean section 162 had uterine myomas. The incidence of the uterine myomas was statistically significant in women who where older than 25 (p. < 2 x 10(-4)). A statistically significant increased incidence of threatened preterm delivery was observed in patients with uterine myomas larger than 600 cm3 (p < 0.05). In this population uterine myomas did not significantly alter the incidence of intrauterine growth retardation.
  
  
  CONCLUSIONS
  Uterine myomas were observed in 24% of pregnant women. The presence of uterine myomas larger than 600 cm3 increases the incidence of the threatened preterm delivery.
authors.affiliation: Kliniki Perinatologii Katedry Perinatologii i Ginekologii Akademii Medycznej im. K. Marcinkowskiego w Poznaniu.
authors.forename: Barbara
authors.initials: B
authors.lastname: Bałoniak
authors.forename: Zbigniew
authors.initials: Z
authors.lastname: Słomko
authors.forename: Zbyszko
authors.initials: Z
authors.lastname: Malewski
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Drews
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002585:Cesarean Section; D005260:Female; D006801:Humans; D015994:Incidence; D007889:Leiomyoma / Q000175:diagnosis / Q000453:epidemiology*; D008875:Middle Aged; D007744:Obstetric Labor Complications / Q000453:epidemiology* / Q000209:etiology; D011044:Poland / Q000453:epidemiology; D011247:Pregnancy; D011252:Pregnancy Complications, Neoplastic / Q000175:diagnosis / Q000453:epidemiology*; D011256:Pregnancy Outcome; D014594:Uterine Neoplasms / Q000175:diagnosis / Q000453:epidemiology*