|It is a clinical condition in which heart is not able to pump adequately to maintain blood flow to meet the requirement of body. The foremost cause of heart failure is coronary artery diseases, myocardial infarction, high blood pressure and atrial fibrillation etc. common sign and symptoms are increased rate of breathing, initially rales can be hear from lung bases or pulmonary edema, and wheezing etc.The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number ofÂ citationsÂ to recent articles published inÂ science and social science journals in a particular year or period, and is frequently used as aÂ proxyÂ for the relative importance of a journal within its field. It is first devised byÂ Eugene Garfield, the founder of theÂ Institute for Scientific Information.The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.