CRT in patients with heart failure in NYHA I-II class Review article
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Abstract
Heart failure (HF) is one of the most important heart diseases and because of its frequency, unfavorable prognosis and high cost of therapy makes a serious problem in current medicine. The clinical effects of cardiac resynchronization therapy (CRT) have been evaluated in a large number of randomized clinical trials and improves clinical condition and prognosis in HF patients. So far CRT was recommended to reduce mortality and morbidity in patients in NYHA III-IV classes who have a reduced EF ≤ 35% and QRS width ≥ 120ms. Two recent, randomized trials’ MARIT-CRT and REVERSE demonstrated reduced morbidity in mild HF. CRT is actually also recommended to reduce morbidity or to prevent disease progression in patients with HF in NYHA II class who have a reduced EF ≤ 35% and QRS width ≥ 150 ms.
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References
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