STUDY OBJECTIVE: To estimate changes in uterine myoma volume during pregnancy. DESIGN: Review of departmental electronic perinatal database and medical records. Canadian Task Force Classification II-3. SETTING: Obstetrical ultrasound unit in an academic tertiary care center. PATIENTS: One hundred-seven patients diagnosed with uterine myomas during pregnancy and who had two or more obstetrical ultrasounds in different periods of pregnancy. INTERVENTIONS: We analyzed the change in volume of uterine myomas between the first half of pregnancy (up until 19 weeks), third quarter (20-30 weeks), and last quarter (31 weeks to term). The volume of largest uterine myoma was calculated using the formula Volume (mm3)=Pi/6x(length mm)x(width mm)x(height mm). MEASUREMENTS AND MAIN RESULTS: The mean age of the population was 31+/-6 years. Between the first and the second study periods, the percentage of uterine myomas that decreased in size was 55.1% (95% CI: 43-66), with a mean decrease in volume of 35%+/-4%; while the percentage of uterine myomas that enlarged was 44.9% (95% CI: 34-56), with a mean increase in volume of 69%+/-11%. Between the second and the third study periods, 75% (95% CI: 56-87) became smaller, with a mean decrease in volume of 30%+/-3%; while 25% (95% CI: 13-43) enlarged, with a mean increase in volume of 102%+/-62%. CONCLUSION: Contrary to common belief, we found that uterine myomas commonly decrease in volume over the course of pregnancy.
STUDY OBJECTIVE: To estimate changes in uterine myoma volume during pregnancy. DESIGN: Review of departmental electronic perinatal database and medical records. Canadian Task Force Classification II-3. SETTING: Obstetrical ultrasound unit in an academic tertiary care center. PATIENTS: One hundred-seven patients diagnosed with uterine myomas during pregnancy and who had two or more obstetrical ultrasounds in different periods of pregnancy. INTERVENTIONS: We analyzed the change in volume of uterine myomas between the first half of pregnancy (up until 19 weeks), third quarter (20-30 weeks), and last quarter (31 weeks to term). The volume of largest uterine myoma was calculated using the formula Volume (mm3)=Pi/6x(length mm)x(width mm)x(height mm). MEASUREMENTS AND MAIN RESULTS: The mean age of the population was 31+/-6 years. Between the first and the second study periods, the percentage of uterine myomas that decreased in size was 55.1% (95% CI: 43-66), with a mean decrease in volume of 35%+/-4%; while the percentage of uterine myomas that enlarged was 44.9% (95% CI: 34-56), with a mean increase in volume of 69%+/-11%. Between the second and the third study periods, 75% (95% CI: 56-87) became smaller, with a mean decrease in volume of 30%+/-3%; while 25% (95% CI: 13-43) enlarged, with a mean increase in volume of 102%+/-62%. CONCLUSION: Contrary to common belief, we found that uterine myomas commonly decrease in volume over the course of pregnancy.
Authors: Kara A Michels; Digna R Velez Edwards; Donna D Baird; David A Savitz; Katherine E Hartmann Journal: Ann Epidemiol Date: 2013-11-12 Impact factor: 3.797
Authors: Xia Luo; Ping Yin; Scott Reierstad; Hiroshi Ishikawa; Zhihong Lin; Mary Ellen Pavone; Hong Zhao; Erica E Marsh; Serdar E Bulun Journal: J Clin Endocrinol Metab Date: 2009-10-06 Impact factor: 5.958