Heart failure: epidemiology and prevention in India.
Reliable estimates of heart failure are lacking in India because of the absence of a surveillance programme to track incidence, prevalence, outcomes and key causes of heart failure. Nevertheless, we propose that the incidence and prevalence rates of heart failure are rising due to population, epidemiological and health transitions. Based on disease-specific estimates of prevalence and incidence rates of heart failure, we conservatively estimate the prevalence of heart failure in India due to coronary heart disease, hypertension, obesity, diabetes and rheumatic heart disease to range from 1.3 to 4.6 million, with an annual incidence of 491 600-1.8 million. The double burden of rising cardiovascular risk factors and persistent 'pre-transition' diseases such as rheumatic heart disease, limited healthcare infrastructure and social disparities contribute to these estimates. Staging of heart failure, introduced in 2005, provides a framework to target preventive strategies in patients at risk for heart failure (stage A), with structural disease alone (B), with heart failure symptoms (C) and with end-stage disease (D). Policy-level interventions, such as regulations to limit salt and tobacco consumption, are effective for primordial prevention and would have a wider impact on prevention of heart failure. Clinical preventive interventions and clinical quality improvement interventions, such as treatment of hypertension, atherosclerotic disease, diabetes and acute decompensated heart failure are effective for primary, secondary and even tertiary prevention.
Centre for Chronic Disease Control, C1/52 Safdarjung Development Area, New Delhi 110016, India.
Mark D
MD
Huffman
Dorairaj
D
Prabhakaran
D006333:Heart Failure / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control*; D006801:Humans; D015994:Incidence; D007194:India / Q000453:epidemiology; D015995:Prevalence; D011322:Primary Prevention; D012307:Risk Factors; D055502:Secondary Prevention; D055512:Tertiary Prevention
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