ABSTRAK ABSTRACTBackground: Q-wave myocardial infarction (QMI) has higher mortality and lower myocardial viability than non-Qwave myocardial infarction (NQMI), suggesting the existence of pathological Q waves reflects the worse ventricular function. The aim of the study is to determine difference in left ventricular ejection fraction (LVEF) between QMI and NQMI.

Hypertension is the most common cause of cardiovascular disease and it is a major problem in both developed and developing countries. Obesity is one of the main risk factors of hypertension. Hypertension and obesity are health problems which its prevalence is continues to increase in Indonesia. The anthropometric index that can be used to determine nutritional status are the body mass index (BMI) and waist circumference measurement. This study was an observational analytic with cross sectional method. The sample of this study was 275 respondent who were selected using the consecutive sampling method in Karang Asam public health center Samarinda. Data of this study were obtained from direct measurement of height, weight, waist circumference and blood pressure of respondent and data were analyzed by using chi square test. The result of statistical test showed that there was relationship between body mass index (p = 0,000 ; OR= 5,234 ; 95% CI= 3,090-8,865) and waist circumference (p = 0,000; OR=5,489 ; 95% CI= 3,233 – 9,318) with blood pressure. There was a significant relationship between body mass index and waist circumference with blood pressure at Karang Asam Public Health Center Samarinda.

Background: Wellens' syndrome is a potentially life-threatening condition, characterized by biphasic or deeply inverted T-waves changes in electrocardiographic (ECG) precordial leads, which associated with critical stenosis of left anterior descending (LAD) coronary artery and impending anterior myocardial infarction in patients presenting with unstable angina. This syndrome is an important sign for clinicians because delay in coronary angiography and revascularization may lead toanterior myocardial infarction, left ventricular dysfunction, and even death. Case presentation: A 50-year-old woman came to emergency department in a hospital in Bontang, with new onset intermittent typical chest pain lasting since 3 days. She had history of hypertension without regular medication. Physical examination was in normal ranges. An ECG obtained during chest pain-free period showed Wellens' type A with biphasic T waves in V2-V6 and preserved R-wave progression. Troponin T was slightly elevated. During observation, the ECG pattern changed from Wellens' type A to Wellens' type B with deep T-wave inversions in V2-V6 and preserved R-wave progression. Results:The patient was initially treated with conservative treatment. On the next day, she was referred to percutaneous coronary intervention-capable hospital in Samarinda. Coronary angiography revealed 90% stenosis of mid LAD. A drug-eluting stent was successfully implanted with restoration of LAD flow. She was discharged on the following day in good condition with medication of dual antiplatelet therapy, angiotensin-converting enzyme inhibitor, beta-blocker, and statin. Conclusion:Clinicians should be aware of the ECG changes in Wellens' syndrome, which may occur during pain-free period. Early recognition is crucial to avoid the development of anterior myocardial infarction. Immediate coronary angiography and revascularization is needed.

Periprocedural myocardial injury is one of complications after percutaneus coronary intervention that often occurs, and has a relationship with increased mortality. Several risk factors have been associated with the incidence of periprocedural myocardial injury. The purpose of this study was to determine the description of periprocedural myocardial injury risk factors which were divided into risk factors related to patients, lesions and procedures. The study was conducted with a prospective cohort research design and sampling by purposive sampling in March-October 2019. The number of samples was 38 people. The results showed  that 31.6% sample experienced periprocedural myocardial injury. The description of risk factors in this study shows that patients with  type-2 diabetes melitus more often experience periprocedural myocardial injury. As for other risk factors, the proportion of periprocedural myocardial injury is not greater than the proportion of non-periprocedural myocardial injury in patients with these risk factors. However, an increase in the proportion of periprocedural myocardial injury events occurs along with the increasing number of coronary arteries that have atherosclerotic lesions.