Subclinical hyperthyroidismappears to be a common disorder. It may be caused by exogenous or endogenous factors: excessive TSH suppressive therapy with L-thyroxine (L-T4) for benign thyroid nodular disease, differentiated thyroid cancer, or hormone over-replacement in patients with hypothyroidism are the most frequent causes. Consistent evidence indicates that 'subclinical' hyperthyroidismreduces the quality of life, affecting both the psycho and somatic components of well-being, and produces relevant signs and symptoms of excessive thyroid hormone action, often mimicking adrenergic overactivity. Subclinical hyperthyroidismexerts many significant effects on the cardiovascular system; it is usually associated with a higher heart rate and a higher risk of supraventricular arrhythmias, and with an increased left ventricular mass, often accompanied by an impaired diastolic function and sometimes by a reduced systolic performance on effort and decreased exercise tolerance. It is well known that these abnormalities usually precede the onset of a more severe cardiovascular disease, thus potentially contributing to the increased cardiovascular morbidity and mortality observed in these patients. In addition, it is becoming increasingly apparent that subclinical hyperthyroidismmay accelerate the development of osteoporosis and hence increased bone vulnerability to trauma, particularly in postmenopausal women with a pre-existing predisposition. Subclinical hyperthyroidism and its related clinicalmanifestations are reversible and may be prevented by timely treatment.

Subclinical hyperthyroidism: clinical features and treatment options / Biondi, Bernadette; Palmieri, Ea; Klain, M; Schlumberger, M; Filetti, S; Lombardi, Gaetano. - In: EUROPEAN JOURNAL OF ENDOCRINOLOGY. - ISSN 0804-4643. - ELETTRONICO. - 152(:1(2005), pp. 1-9.

Subclinical hyperthyroidism: clinical features and treatment options.

BIONDI, BERNADETTE
;
KLAIN M;LOMBARDI, GAETANO
2005

Abstract

Subclinical hyperthyroidismappears to be a common disorder. It may be caused by exogenous or endogenous factors: excessive TSH suppressive therapy with L-thyroxine (L-T4) for benign thyroid nodular disease, differentiated thyroid cancer, or hormone over-replacement in patients with hypothyroidism are the most frequent causes. Consistent evidence indicates that 'subclinical' hyperthyroidismreduces the quality of life, affecting both the psycho and somatic components of well-being, and produces relevant signs and symptoms of excessive thyroid hormone action, often mimicking adrenergic overactivity. Subclinical hyperthyroidismexerts many significant effects on the cardiovascular system; it is usually associated with a higher heart rate and a higher risk of supraventricular arrhythmias, and with an increased left ventricular mass, often accompanied by an impaired diastolic function and sometimes by a reduced systolic performance on effort and decreased exercise tolerance. It is well known that these abnormalities usually precede the onset of a more severe cardiovascular disease, thus potentially contributing to the increased cardiovascular morbidity and mortality observed in these patients. In addition, it is becoming increasingly apparent that subclinical hyperthyroidismmay accelerate the development of osteoporosis and hence increased bone vulnerability to trauma, particularly in postmenopausal women with a pre-existing predisposition. Subclinical hyperthyroidism and its related clinicalmanifestations are reversible and may be prevented by timely treatment.
2005
Subclinical hyperthyroidism: clinical features and treatment options / Biondi, Bernadette; Palmieri, Ea; Klain, M; Schlumberger, M; Filetti, S; Lombardi, Gaetano. - In: EUROPEAN JOURNAL OF ENDOCRINOLOGY. - ISSN 0804-4643. - ELETTRONICO. - 152(:1(2005), pp. 1-9.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/100245
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