A review was made of the medical records of 46 pregnant patients with uterine myomas that were documented by ultrasonographic studies from January 1, 1986, to July 31, 1989. In 17 of these patients the myoma was on the fundus of uterus, in 15 it was on the anterior surface of uterus, in 7 it was on the isthmus of uterus, and in 6 it was on the posterior surface of uterus. Twenty-one cases of the myomas were 3cm to 5cm in diameter, 14 were 5cm to 10cm in diameter and 4 were equal to less than 3cm in diameter. No increase in size during pregnancy was observed in 38 myomas (82.8%). Only 5 (10.8%) increased in size more than 25% of the initial volume and 3(6.5%)
decrease in size more than 25% of the initial volume. Vaginal bleeding developed in 17 of 46 (36.9 %) ; spontaneous abortion occured in 10 of 46 (21.7 %) ;secondary degeneration of the myomas developed in 6 of 46(13.0%); abdominal pain developed in 3 of 46(6. 5%); preterm labor occured in 3 of 46(6.5%); failure to progress in labor occured in 3 of 46(4.4%); anemia developed in 2 of 46(4.4% );postpartum bleeding developed in 2 of 46(4.4%). The outcome of pregnancy associated in 10 of 46(21.7%); preterm delivery occured in 1 of 46(2.2%); term delivery occured in 35 of 46(76.1%). The methods of delivery were dependent more upon the intrinsic obstetric factors :rather than on the locations or the size of the myoma.
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