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Journal of Ultrasound in Medicine, Vol 16, Issue 11 737-741, Copyright © 1997 by American Institute of Ultrasound in Medicine

JOURNAL ARTICLE

Effects of oophorectomy and hormone replacement therapy on ophthalmic artery blood flow velocity waveforms

K. Hata and T. Hata
Department of Obstetrics and Gynecology, Shimane Medical University, Izumo, Japan.

Our objective was to compare ophthalmic artery flow velocity waveforms in unilateral oophorectomized patients not on hormone replacement therapy with findings in bilateral oophorectomized patients on hormone replacement therapy. Ten patients who underwent hysterectomy and unilateral oophorectomy and 10 women treated by hysterectomy and bilateral oophorectomy were studied using color and pulsed Doppler ultrasonography 1 day before and on days 7 and 28 after surgery. Serum estradiol levels were measured serially. Bilateral oophorectomy patients were given hormone replacement therapy (conjugated estrogen, 0.625 mg/day, and medroxyprogesterone acetate, 2.5 mg/day) orally starting on day 8 after surgery. The pulsatility index values of the ophthalmic artery in unilateral oophorectomy patients were 1.93 +/- 0.41, 2.10 +/- 0.26, and 1.68 +/- 0.27 for 1 day before and on days 7 and 28 after surgery, respectively. The pulsatility index values of the ophthalmic artery in bilateral oophorectomy patients were 1.99 +/- 0.39, 2.17 +/- 0.47, and 1.75 +/- 0.32 for 1 day before and on days 7 and 28 after surgery, respectively. No significant differences were found between pulsatility index values in the unilateral and bilateral oophorectomy patients in each time period. The pulsatility index values on day 28 decreased significantly compared with the findings on day 7 in both groups (P < 0.05). The serum estradiol levels were significantly reduced from 1 day before to day 7 day after surgery and were significantly elevated by day 28 after surgery (P < 0.05) in both groups of patients. No significant differences were found between the serum estradiol levels in the unilateral and bilateral oophorectomy patients in each time period. Vascular tone in the ophthalmic artery seems to change according to serum estradiol levels, a finding that may help explain some of the beneficial effects of hormone replacement therapy for bilateral oophorectomized patients.


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I. Mihmanli, V. Mihmanli, F. Kantarci, M. S. Albayram, K. Atakir, M. Cantasdemir, and C. Akman
Effects of Oophorectomy and Hormone Replacement Therapy on the Pulsatility Indices of Hepatic and Renal Arteries
J. Ultrasound Med., April 1, 2002; 21(4): 367 - 373.
[Abstract] [Full Text] [PDF]


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