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甲状腺激素对身体所有组织包括心脏的代谢均有显著影响.甲状腺功能亢进女性多于男性,约30%病例有心悸、呼吸困难、心动过速及收缩压升高.心脏指数、收缩期喷血率、冠状动脉血流及脉压增加者亦不少,但体循环血管阻力、收缩期喷血及喷血前期则减小或缩短.心脏的改变可能部分由于甲状腺激素对周围的作用而使代谢需要增加所致.曾有报道心排出量大于体内的总氧耗量,提示对心脏亦有一些直接的作用.有些病例可有心房颤动.本文评价10例未经治疗的甲状腺功能亢进病人于休息及直立位运动时的心脏功能.
Thyroid hormones have a significant effect on the metabolism of all tissues of the body, including the heart .Hyperthyroidism in women than men, palpitations, dyspnea, tachycardia and systolic blood pressure in about 30% of cases.Cardiac index, systolic ejection rate , Coronary blood flow and pulse pressure were also increased, but systemic vascular resistance, systolic blood pressure and pre-ejection period is reduced or shortened heart changes may be due in part to the surrounding thyroid hormone metabolism and the need to increase Have been reported cardiac output greater than the body’s total oxygen consumption, suggesting that there are some direct effects on the heart in some cases may have atrial fibrillation.This evaluation of 10 cases of untreated patients with hyperthyroidism rest and upright Heart function during exercise.