A low serum free T3 index/reverse T3 ratio in chronic heart failure patient — КиберПедия 

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A low serum free T3 index/reverse T3 ratio in chronic heart failure patient

Is a highly significant predictor of poor outcome

· Cerillo AG, Bevilacqua S, Storti S, Mariani M, Kallushi E, Ripoli A, Clerico A, Glauber M. Free triiodothyronine: a novel predictor of postoperative atrial fibrillation. Eur J Cardiothorac Surg. 2003

· Hamilton MA, Stevenson LW, Luu M, Walden JA. Altered thyroid hormone metabolism in advanced heart failure. J Am Coll Cardiol. 1990 Jul;16(1):91-5

· Kozdag G, Ural D, Vural A, Agacdiken A, Kahraman G, Sahin T, Ural E, Komsuoglu B. Relation between free triiodothyronine/free thyroxine ratio, echocardiographic parameters and mortality in dilated cardiomyopathy. Eur J Heart Fail. 2005 Jan;7(1):113-8

A low serum T3 or T4 in heart patients is associated with an increased rise

Of cardiac arrest/death

· Wortsman J, Premachandra BN, Chopra IJ, Murphy JE. Hypothyroxinemia in cardiac arrest. Arch Intern Med. 1987 Feb;147(2):245-8

· Iervasi G, Pingitore A, Landi P, Raciti M, Ripoli A, Scarlattini M, L'Abbate A, Donato L. Low-T3 syndrome: a strong prognostic predictor of death in patients with heart disease. Circulation. 2003 Feb 11;107(5):708-13

Thyroid therapy of cardiac patients

· Corrective thyroid therapy is safe in hypothyroid patients with common benign cardiac arrhythmias at the condition that thyroid treatment is started at low doses and then gradually and prudently increased to the adequate dose. The treatment does not trigger an increase in arrhythmia frequency except in rare patients with baseline atrial premature beats. It is, however, associated with an increase in basal, average and maximal heart rates

· Polikar R, Feld GK, Dittrich HC, Smith J, Nicod P. Effect of thyroid replacement therapy on the frequency of benign atrial and ventricular arrhythmias. J Am Coll Cardiol. 1989 Oct;14(4):999-1002

Thyroid therapy corrects the bradycardia of hypothyroidism

· Yamauchi K, Takasu N, Ichikawa K, Yamada T, Aizawa T. Effects of long-term treatment with thyroxine on pituitary TSH secretion and heart action in patients with hypothyroidism. Acta Endocrinol (Copenh). 1984 Oct;107(2):218-24 (“T4 doses should be adjusted to maintain normal ET/PEP (systolic time intervals) rather than normal serum TSH levels”)

Thyroid therapy corrects the ventricular arrhythmia

· Vanin LN, Smetnev AS, Sokolov SF, Kotova GA, Masenko VP. Thyroid function in patients with ventricular arrhythmia. Kardiologiia. 1989 Feb;29(2):64-7 (“Thyroid therapy for hypothyroidism led to the disappearance of paroxysms of ventricular tachycardia and reduced the total number and grades of ventricular extra-systoles in patients with ventricular arrhythmias; moreover, sensitivity to antiarrhythmic agents develop

Coronary heart disease in humans: the improvement with thyroid treatment ed to replace an earlier resistance”

· Barnes BO. Prophylaxis of ischaemic heart-disease by thyroid therapy. Lancet. 1959 Aug 22;2:149-52

· Holland FW 2nd, Brown PS Jr, Clark RE. Acute severe postischemic myocardial depression reversed by triiodothyronine. Ann Thorac Surg. 1992 Aug;54(2):301-5

· Israel M. An effective therapeutic approach to the control of atherosclerosis illustrating harmlessness of prolonged use of thyroid hormone in coronary disease. Am J Dig Dis. 1955 June;161-8

· Yokoyama Y, Novitzky D, Deal MT, Snow TR. Facilitated recovery of cardiac performance by triiodothyronine following a transient ischemic insult. Cardiology. 1992;81(1):34-45

Adequate thyroxine replacement in hypothyroidism prevents coronary artery disease progression

· Perk M, O’Neill BJ; The effect of thyroid therapy on angiographic artery disease progression. Can J Card. 1997;13(3):273-6

Desiccated thyroid therapy improves cardiac failure refractory to digitalis in humans

· Zondek H. Myxedema Heart. Munch Med Wochenschr. 1918, 65: 1180-3

· Khaleeli AA, Memon N. Factors affecting resolution of pericardial effusions in primary hypothyroidism: a clinical, biochemical and echocardiographic study. Postgrad Med J. 1982 Aug;58(682):473-6

T3-therapy improves the outcome of open heart sugery, especially heart transplants

· Novitzky D, Fontanet H, Snyder M, Coblio N, Smith D, Parsonnet V. Impact of triiodothyronine on the survival of high-risk patients undergoing open heart surgery. Cardiology. 1996 Nov-Dec;87(6):509-15.

· Novitzky D, Cooper DK, Chaffin JS, Greer AE, DeBault LE, Zuhdi N. Improved cardiac allograft function following triiodothyronine therapy to both donor and recipient. Transplantation. 1990 Feb;49(2):311-6

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