The effect of oophorectomy and estrogen replacement therapy on Doppler derived parameters of aortic flow

Amos Pines, Yair Frenkel, Enrique Z. Fisman, Alexander Tenenbaum, Daniel Ayalon, Ayala Lusky, Yoram Wolf

Research output: Contribution to journalArticlepeer-review

Abstract

Objectives: The immediate consequences of surgical castration and estrogen replacement therapy (ERT) on left ventricular systolic performance as assessed by Doppler-derived parameters of aortic flow were examined. Methods: A follow up study comprising two groups: eight premenopausal women who underwent hysterectomy and bilateral oophorectomy and started ERT 1 week after surgery - the study group, and a control group consisted of eight premenopausal women who did not start ERT following hysterectomy. Doppler echocardiography was performed before surgery, 1 week and 1 month post surgery. Results: In both groups significant increase in heart rate was observed after 1 week, remaining high after 1 month in the control group only. The early post-operative period in all women was characterized by an increase in aortic flow velocity, but was statistically significant in the study group only. After initiation of ERT a significant decrease in peak flow velocity (PFV) and mean acceleration (MA) was recorded. Conclusions: Changes in estradiol level may be associated with alterations in left ventricular function. The initial and acute effect of estrogen on the heart muscle after surgical castration is towards a decrease in Doppler-derived parameters of aortic flow. Whether these effects represent a depression of left ventricular function, or alternatively, reflect peripheral vasculature reactivity, requires further evaluation.

Original languageEnglish
Pages (from-to)125-128
Number of pages4
JournalMaturitas
Volume37
Issue number2
DOIs
StatePublished - 29 Dec 2000

Keywords

  • Aortic flow
  • Bilateral oophorectomy
  • Estrogen replacement therapy
  • Hysterectomy
  • Surgical castration

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