In comparison to Killip Class I, patients with higher Killip class had greater prevalence of cardiovascular risk factors, presented late, were less likely to have angina, and were less likely to receive antiplatelet, statins, and β-blockers. High Killip classes were defined in 22% of patients. Patients' characteristics and in-hospital outcomes were analyzed. Patients were categorized according to Killip classification at presentation (Classes I, II, III, and IV). In 2007 and over 5 months, 6704 consecutive patients with ACS were enrolled in the Gulf Registry of Acute Coronary Events. This piece will provide a concise summary of the most recent systemic reviews and evidence.The purpose of this study was to assess the prognostic value of the Killip classification at the presentation in patients with acute coronary syndrome (ACS). Ever since the Framingham Heart Study, there has been a plethora of data on coronary artery disease risk factors. This article will review the impact and management of these risk factors. One public health study that gathered mortality data from 1969 to 2014 concluded that by 2020, the number of heart disease-related deaths would decrease by 21.3 percent for men and 13.4 percent for women. Risk factor identification, combined with advances in medical technology, has contributed to a significant decrease in CAD mortality rates over the past forty years in western countries. Given the immense healthcare burden of CAD, modifiable, and non-modifiable risk factors were identified to mitigate the resulting economic and disease-related burden. Modifiable risk factors include hypertension, hyperlipidemia, diabetes, obesity, smoking, poor diet, sedentary lifestyle, and stress. Non-modifiable risk factors include age, gender, ethnicity, and family history of CAD. These studies classify CAD into two broad categories: non-modifiable and modifiable risk factors. The PREDICT Cardiovascular Disease Cohort study was another study completed in New Zealand. The ULSAM, PIVUS, POEM, EpiHealth, and SCAPIS studies were cohort studies completed at Uppsala University in Sweden. The FINRISK study is an ongoing Finnish population-based observational study that began in 1972. This was the first study that elucidated risk factors associated with cardiovascular disease. Since then, cohort studies have continued to study the impact of different risk factors on cardiovascular disease. The Framingham Heart Study enrolled its first participant in 1948 and is currently studying its third generation of participants. While CAD is a significant cause of death and disability, it is preventable. Healthcare services for CAD are estimated to cost greater than 200 billion dollars annually in the United States. It is the third leading cause of mortality worldwide and is associated with 17.8 million deaths annually. Coronary artery disease (CAD) accounts for approximately 610,000 deaths annually (estimated 1 in 4 deaths) and is the leading cause of mortality in the United States.
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