• Kyobu Geka · Mar 1998

    Case Reports

    [Cardiac surgery for the patients with hyperthyroidism].

    • M Onoe, T Magara, Y Yamamoto, and T Nojima.
    • Department of Cardiac Surgery, Shiga Medical Center for Adults, Shiga, Japan.
    • Kyobu Geka. 1998 Mar 1;51(5):388-91.

    AbstractSince open heart surgery may cause thyrotoxic crisis during the perioperative period in patients with hyperthyroidism, close monitoring and control are needed. We performed open heart surgery in 2 patients with hyperthyroidism, and good results were obtained. A 71-year-old patient with mitral valve insufficiency underwent mitral valve repair by replacement of chordae tendineae with polytetrafluoroethylene sutures and annuloplasty with a Duran's Ring. The other 20-year-old patient with aortic valve insufficiency underwent aortic valve replacement with an SJM valve. In the two patients, cardiopulmonary bypass for a prolonged period was required during surgery. However, thyrotoxic crisis could be prevented by controlling thyroid function by preoperative treatment with anti-thyroid agents, concurrent medication with Lugol's iodine solution immediately before surgery and re-administration of anti-thyroid agents early after surgery.

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