In-hospital & 30-day Prognostication of Acute Heart Failure Patients by Comparing 4 Validated Scores in Patients Presenting to the Emergency Department of Cardiac Tertiary Care Hospital, Karachi- Pakistan

After fulfilling the eligibility criteria, informed consent will be obtained from all the patients regarding using data for research while maintaining anonymity. All the included patients will be interviewed by the assigned physician to complete the detailed questionnaire, including patient demographics, risk factors, and validated questionnaires including the Acute Decompensated Heart Failure National Registry (ADHERE), The Get With The Guideline-Heart Failure (GWTG-HF) Risk Score, the Ottawa Heart Failure Risk Scale (OHFRS), and EHMRG30-ST score. All the patients will be followed after 30 days, and survival status will be obtained. The AUC of the GWTG-HF risk score for all-cause death was 0.687 (95% CI, 0.649-0.725) [18], at 95% confidence interval, ±3% margin of error, the sample size was calculated to be n=626 patients. The calculated sample size was inflated by a factor of 1.5 for the design effect; hence, the sample size for the study will be N=939.

For data verification, 10% of the data will be cross-checked with the source document (Patient file).