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  Background & Objectives : Coronary artery disease is one of the most important mortality causes in developed and developing countries. Many risk factors can influence coronary artery disease some of which can be controlled and prevented. Information should be given to people for controlling these factors and prior to this information – giving, the primary awareness of them about risk factors needs to be ascertained. This research is a study of the knowledge, attitude and practice of Ardabil people about CAD risk factors.

  Methods : This descriptive analytic study was done on 384 individuals (female and male) over 20 years old. These subjects were selected from five clusters. Synthetic questionnaire was used for data collection through direct interview at home. The collected data was then analyzed by SPSS software.

  Results : 50.5% of samples were females. 27.3 % of the subjects were high-school graduates. Most of them (70%) were aware of stress and lesion as risk factors. 66.9% of them were aware only of the effect of immobility on coronary artery disease but 13% of them had regular physical activity. 52.1% of them were aware of the harmful effect of salt on CAD, but 15% of them had low salt intake. 48.2% of people were aware of benefit of liquid oil on health, but only 25% of them consumed it. Results showed that, 48.2%, 51.3% and 40.9% of individual had moderate knowledge, positive attitude, and weak practice, respectively. The relationship among variables was significant (P<0.0001), and practice of people has been increased with increasing of knowledge and attitude.

  Conclusion : Regarding these results, regular programs are necessary for increasing awareness and practice of people as primary preventive steps for controlling CAD.

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  Background & Objectives: Usually, among the candidate patients for cardiac valve's surgery, the coronary artery angiography is performed according to their age and gender. By this research, the prevalence of coronary artery disease is studied in addition we have tried to consider the risk - factors of coronary artery disease to predict the probability of coronary artery disease among them.

  Methods: we studied prospectively a population of 320 patients (144 male and 176 female) who were candidate to cardiac valve's surgery and underwent preoperative angiography in the cath - Lab of Imam Khomeini hospital in Tehran, from April - 1999 to October - 2003.

  Result: There was aortic valvulopathy in 131 patients, mitral in 90 and combined Mitro-aortic in 99. Angina was present in 35% and coronary artery disease risk factors in 27.8% of patients. The prevalence of coronary artery disease was 13.1 %. The prevalence of coronary artery disease in patients with angina was significantly higher (22.3% versus 8.2% in patients without angina). In addition the prevalence of coronary artery disease was significantly higher in patients with coronary artery disease risk factors (22.5% versus 9.5% in patients without risk factors). Three predictive factors of CAD in these patients were age, presence of angina pectoris and presence of CAD risk Factors. The prevalence of CAD in patients who have neither angina nor risk factors was 4.6%. In this group of patients no male under 60 years old and only 3.5% of female patients under 65 years old had coronary artery disease.

  Conclusion: The study showed that due to the low prevalence of coronary artery disease in patients with none of the coronary risk factors or without angina, we can avoid preoperative coronary angiography in males under 60 years old and females under 65 years old who have neither angina nor risk factors of CAD.

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  Background & Objective: Many risk factors are important in genesis of coronary artery disease. Their effect and prevalence are different in hypertensive patients. The aim of this study was to evaluate the predictive value of cardiac risk factors in hypertensive patients and compare those in normotensive patients.

  Methods: With descriptive cross sectional study and random sampling, 976 of 3000 patients’ units who underwent coronary angiography (CAG) during year of 2004 were studied. Demographic and angiographic data were collected. Data entry and analysis were done by SPSS 11.5 and EPI 6 statistical software.

  Results: Prevalence of patients who underwent CAG was 60.5%. Mean age of patients were 58.6 and 53.9 years and prevalence of CAD were 84 and 84.5 percent in hypertensive and non hypertensive patients respectively. Prevalence of two and three vessel disease was higher in hypertensive patients. Male gender, diabetes, hyperlipidemia and age were main predictors of CAD in hypertensive patients but in normotensive patients male gender, smoking, familial history and age were major predictors.

  Conclusion: Prevalence of HTN, RFs and CAD�are high in patients who underwent CAG and pattern of CAD in our country follows western country patterns. Male gender, diabetes, hyperlipidemia and age were main predictors of CAD in hypertensive patients, respectively regarding to high prevalence of cardiac risk factors and their severe effect on genesis of CAD in hypertensive patients rapid health measures are needed for control of HTN in general population.

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Background & objectives: Coronary artery disease (CAD) is the most common cause of mortality and disability around the world. Determination of the health status and spatial and temporal patterns of the disease prevalence has a major role in health planning.
This study aimed to investigate the spatiotemporal pattern of CAD in Ardabil Province.
Methods: This descriptive and cross-sectional study was performed using the data belonging to 60156 patients with history of hospital admission due to CAD in Ardabil Province during 2010-2015. Hospitalization Rate (HR) was calculated after classification of the data in terms of location and date of hospitalization. The spatiotemporal and demographic variables, including age, gender, type of CAD, periods and duration of hospitalization were analyzed by descriptive statistics, ANOVA and repeated measures in SPSS v23 statistical software. Spatial distribution maps were drawn for each month and year in ArcGIS 10.2.
Results: Of 60156 hospitalized patients with CAD diagnosis, men (58%) were more in number than women (42%). The majority of hospitalized patients fell in the age range 60-69 years (25.3%), and 92.40% of patients were hospitalized for less than 7 days. An ascending pattern was observed in temporal hospitalization trend in Khalkhal and a descending trend in Ardabil. The lowest hospitalization rate, however, was observed in Kosar city despite the ascending trend. During the research period, the greatest decline in hospitalization rate was observed in temporal trend in Bilasuvar, Meshkinshahrand Namin cities, and the largest increase was observed in Germi, Pars-Abad and Kosar cities.
Conclusion: By using the comprehensive technology, GIS, spatiotemporal distribution and CAD trend during 2011-2015 were modeled in Ardabil province. Spatiotemporal trend of CAD in Ardabil province and allied cities indicated the necessity of paying more attention and studying community for further prevention of the disease. Community-based interventions should be implemented for prevention of risk factors of CAD during childhood and adolescence especially in the districts with high risk.