Effects of radioiodine therapy in hyperthyroidism (thyroid function, thyroid volume, Graves' ophtalmopathy, thyrotoxic heart disease). 1993

H I Ursu, and L Dumitriu, and D Grigorie, and M Simescu, and E Vaida, and M Belgun, and D Popovici
C. I. Parhon Institute of Endocrinology, Bucharest, Romania.

The study group consisted of 135 hyperthyroid patients--128 with Graves' disease and 7 with toxic multinodular goiter. A single dose of radioiodine was given in 110 cases (81.48%), two doses in 22 patients (16.3%) and three doses in 3 patients (2.22%); mean total dose was 6.8 mCi (range = 3-24 mCi). The main goal of radio iodine therapy is to achieve euthyroidism; after radioiodine treatment, 61 patients (45.2%) were euthyroid, 60 patients (44.4%) with permanent hypothyroidism and 14 (10.36%) with PERSISTING HYPERTHYROIDISM--the mean duration of follow-up being 4.2 years. After radioiodine therapy, goiter became absent in 30 patients (28%); in those patients, goiter was moderately enlarged or large before therapy. Around 63% (12 cases) of the patients with thyrotoxic atrial fibrillation reverted to sinus rhythm. During the last four years (1990-1994) the patients with Graves' ophthalmopathy from the study group were treated with Prednisone after radioiodine therapy; this corticotherapy contributes to the lower percentage (1.5%) of worsening Graves' ophthalmopathy after radioiodine therapy.

UI MeSH Term Description Entries
D006980 Hyperthyroidism Hypersecretion of THYROID HORMONES from the THYROID GLAND. Elevated levels of thyroid hormones increase BASAL METABOLIC RATE. Hyperthyroid,Primary Hyperthyroidism,Hyperthyroidism, Primary,Hyperthyroids
D007037 Hypothyroidism A syndrome that results from abnormally low secretion of THYROID HORMONES from the THYROID GLAND, leading to a decrease in BASAL METABOLIC RATE. In its most severe form, there is accumulation of MUCOPOLYSACCHARIDES in the SKIN and EDEMA, known as MYXEDEMA. It may be primary or secondary due to other pituitary disease, or hypothalamic dysfunction. Central Hypothyroidism,Primary Hypothyroidism,Secondary Hypothyroidism,TSH Deficiency,Thyroid-Stimulating Hormone Deficiency,Central Hypothyroidisms,Deficiency, TSH,Deficiency, Thyroid-Stimulating Hormone,Hormone Deficiency, Thyroid-Stimulating,Hypothyroidism, Central,Hypothyroidism, Primary,Hypothyroidism, Secondary,Hypothyroidisms,Primary Hypothyroidisms,Secondary Hypothyroidisms,TSH Deficiencies,Thyroid Stimulating Hormone Deficiency,Thyroid-Stimulating Hormone Deficiencies
D007457 Iodine Radioisotopes Unstable isotopes of iodine that decay or disintegrate emitting radiation. I atoms with atomic weights 117-139, except I 127, are radioactive iodine isotopes. Radioisotopes, Iodine
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D005128 Eye Diseases Diseases affecting the eye. Eye Disorders,Eye Disease,Eye Disorder
D005260 Female Females
D006044 Goiter, Nodular An enlarged THYROID GLAND containing multiple nodules (THYROID NODULE), usually resulting from recurrent thyroid HYPERPLASIA and involution over many years to produce the irregular enlargement. Multinodular goiters may be nontoxic or may induce THYROTOXICOSIS. Nodular Goiter,Goiters, Nodular,Nodular Goiters
D006111 Graves Disease A common form of hyperthyroidism with a diffuse hyperplastic GOITER. It is an autoimmune disorder that produces antibodies against the THYROID STIMULATING HORMONE RECEPTOR. These autoantibodies activate the TSH receptor, thereby stimulating the THYROID GLAND and hypersecretion of THYROID HORMONES. These autoantibodies can also affect the eyes (GRAVES OPHTHALMOPATHY) and the skin (Graves dermopathy). Basedow's Disease,Exophthalmic Goiter,Goiter, Exophthalmic,Graves' Disease,Basedow Disease,Hyperthyroidism, Autoimmune,Basedows Disease,Disease, Basedow,Disease, Basedow's,Disease, Graves,Disease, Graves',Exophthalmic Goiters,Goiters, Exophthalmic
D006331 Heart Diseases Pathological conditions involving the HEART including its structural and functional abnormalities. Cardiac Disorders,Heart Disorders,Cardiac Diseases,Cardiac Disease,Cardiac Disorder,Heart Disease,Heart Disorder

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