ICD 10 CODE FOR IVCD TRIAL
Data were collected by each site and entered into a web-based case-report form in the web-based Clinical REsearch and Trial (iCreaT) system from the Korea National Institute of Health. Follow-up of the patients is planned until 2018. Patients hospitalized for AHF from one of 10 tertiary university hospitals throughout the country were consecutively enrolled from March 2011 to February 2014. 20) Briefly, patients who had signs or symptoms of HF and met one of the following criteria were eligible for this study: 1) lung congestion or 2) objective left ventricular systolic dysfunction or structural heart disease findings. Detailed information on the study design and results from interim analysis are described in our previous paper. The Korean Acute Heart Failure (KorAHF) registry is a prospective multicenter cohort study designed to describe patient demographics, clinical characteristics, current treatments, and short-term and long-term patient outcomes of AHF. Therefore, we established a robust registry of acute heart failure (AHF) in Korea and compared it with our previous registry. In addition, it also suggests the need for close examination of patients' clinical outcomes, prognostic factors, and trends over the last decade. 11), 19), 20) This revealed an unmet need for a robust investigation of the demographic and clinical profiles, diagnostic and therapeutic approaches in routine practice, and the degree of adherence to clinical guidelines regarding pharmacological and non-pharmacological treatments.
ICD 10 CODE FOR IVCD SERIAL
Unfortunately, the serial registry studies performed in Korea revealed that the survival from HF has not significantly improved during the past decades. 17), 18) The increase in total medical cost was mostly attributable to the cost of in-hospital care. 14), 15), 16) Consequently, the prevalence of HF approximately doubled from 0.75% in 2002 to 0.53% in 2013, and the total medical cost increased by about 50% from 2009 to 2013.
The prevalence of risk factors such as diabetes, myocardial infarction, and ischemic heart disease has increased in the past few decades, although the survival outcomes from these diseases have also improved. 6), 7), 8), 9), 10), 11), 12), 13) The impact of this condition has increased in Korea due to the increased growth and development of the society. 3), 4), 5) However, the survival rate of HF remains poor, and the health burden from this condition is increasing globally. 1), 2) The prevalence is increasing in many countries due to aging societies, increased prevalence of risk factors, and better survival from other cardiovascular diseases. Heart failure (HF) is a major global health problem, with a prevalence of more than 26 million annual cases worldwide.
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