Vol.15, No 1, 2008 pp. 24 - 27
UC 613.888:[618.14:612.15]

COLOR DOPPLER MEASUREMENTS OF UTERINE ARCUATE BLOOD FLOW IN PATIENTS ON ORAL CONTRACEPTION
Kutlešić Ranko, Milosavljević Mileva, Vukomanović Predrag, Stefanović Milan, Vučetić Dragana
Clinic of Gynecology and Obstetrics Niš
E-mail: kutlesicr@medianis.net

Summary. The aim of this study is to determine if there are differences in vascular impedance of uterine arcuate arteries between spontaneous ovulatory cycles and cycles in which monophasic combination containing 0,03 mg ethynilestradiol and 2 mg dienogest was administered for contraception. Twenty two patients were included: 11 patients on oral contraceptives, 11 patients with spontaneous ovulatory cycles. Ultrasound examinations, using 7 MHz endovaginal transducer with color Doppler imaging and pulsed spectral analysis, were performed after 15 days of therapy in patients on oral contraceptives and in periovulatory period in the second group. The mean ages were similar – 23 ± 5.65 years in the group on oral contraceptive and 28 ± 5.09 years in the group with spontaneous ovulatory cycles (p = 0.20465). Pulsatily index was lower in the group with spontaneous ovulatory cycles (0.98±0.255 vs. 2.38 ± 0.127, p = 0.00038). Resistance index was lower in the group with spontaneous ovulatory cycles (0.59 ± 0,054 vs. 0,795 ± 0,007, p = 0,000145), also as S/D ratio (2.59 ± 0.247 vs. 4,9 ± 0.14, p = 0.000182). There were no significant differences in peak systolic velocity between group on oral contraception and spontaneous ovulatory cycles (17 ± 9.89 cm/sec. vs. 8.5 ± 3.33 cm/sec, p = 0.21728). Vascular impedance of uterine arcuate arteries was higher in patients on oral contraception containing 0.03 mg ethynilestradiol and 2 mg dienogest than in patients with spontaneous ovulatory cycles.
Key words: Color doppler, oral contraception, dienogest

KOLOR DOPPLER MERENJA PROTOKA KRVI KROZ ARTERIJE ARKUATE UTERUSA U PACIJENTKINJA NA ORALNOJ KONTRACEPCIJI
Kratak sadržaj: Cilj ovog ispitivanja je da se odredi da li postoje razlike u vaskularnoj impedanci arteriola arkuata uterusa izmedju spontanih ovulatornih ciklusa i ciklusa u kojima je korištena monofazna kombinacija, koja sadrži 0,03 mg etinilestradiola i 2 mg dienogesta, data u svrhu kontracepcije. Dvadeset dve pacijentkinje su uključene u ovo ispitivanje: 11 na oralnoj kontracepciji, 11 sa spontanim ovulatornim ciklusima. Ultrazvučni pregledi, uz korištenje endovaginalne sonde od 7 MHz sa kolor Doppler prikazom i pulsnog Dopplera, su sprovedeni posle 15 dana terapije u pacijentkinja na oralnoj kontracepciji i u periovulatornom periodu u drugoj grupi. Izmedju ove dve grupe nije bilo razlika u životnom dobu - 23±5,65 godina u grupi na oralnoj kontracepciji i 28 ± 5,09 godina u grupi sa spontanim ovulatornim ciklusima (p = 0,20465). Pulsatilni indeks je bio niži u grupi sa spontanim ovulatornim ciklusima (0,98±0,255 prema 2,38 ± 0,127, p=0,00038). Indeks rezistence je bio niži u grupi sa spontanim ovulatornim ciklusima (0,59 ± 0,054 prema 0,795 ± 0,007, p=0,000145), takodje i S/D odnos (2,59±0,247 prema 4,9±0,14, p=0,000182). Nije bilo signifikantne razlike u maksimalnoj brzini protoka u sistoli izmedju grupe na oralnoj kontracepciji i spontanih ovulatornih ciklusa (17±9,89 cm/sec prema 8,5±3,33 cm/sec, p=0,21728).  Vaskularna impedanca uterusnih arterija arkuata je viša u pacijentkinja na oralnoj kontracepciji koja sadrži 0,03 mg etinilestradiola i 2 mg dienogesta, nego u pacijentkinja sa spontanim ovulatornim ciklusima.
Ključne reči: Kolor Dopler, oralna kontracepcija. dienogest