Background: Left ventricular hypertrophy (LVH) is a preclinical manifestation of cardiovascular disease and a strong predictor of cardiovascular morbidity and mortality. The electrocardiogram (ECG) is an easily available, easy to use and cost effective tool to evaluate LVH. Peguero – Lo Presti criteria is a newcriteria to diagnose LVH from ECG that has higher sensitivity than the other ECG criteria.Aims: To assess the ability of Peguero – Lo Presti criteria to diagnose LVH and obtain new cut-off point criteria to more accurately diagnose LVH in patients with hypertension in Adam Malik Hospital.Methods: A cross sectional study was conducted on patients with hypertension in cardiac centre Adam Malik Hospital Medan. Electrocardiographic examination was performed to obtain Peguero – Lo Presti point in blinded fashion. LVH was assessed using M-mode method with Cube formula. The analysis of Peguero – Lo Presti criteria was based on the calculation of the deepest S wave in any precordial lead (deepest S wave,SD) and S wave in lead V4 (SV4). A SD + SV4 ≥ 28 mm in male and ≥ 23 mm in female subjects were considered positive for LVH. LVH was defined as left ventricular mass index > 115 gr/m2 in male and > 95 gr/m2 in female subjects.Results: Peguero – Lo Presti criteria had 54.8% sensitivity, 97.6% specificity, 55.4% NPV and 97.6% PPV to diagnose LVH. Lowering the cut-off point of Peguero – Lo Presti criteria to 26 mm in male and 22 mm in female subjects improved the sensitivity from 54.8% to 67.1% with 90.5% specificity, 61.3% NPV and 92.5% PPV to diagnose LVH.Conclusion: Peguero – Lo Presti criteria on ECG could be used to diagnose LVH in patients with hypertension in Adam Malik Hospital Medan.

Background: Coronary heart disease (CHD) is still the leading cause of death in the world. There are various risk factors for atherosclerosis leading to CHD. Duke Treadmill Score (DTS) is known to demonstrate prognostic stratification and has a diagnostic value in predicting the number of coronary arteries involved in patient populations with ischemic heart disease. However, DTS does not describe the role of risk factors for coronary heart disease to the complexity of coronary artery lesions. This study aims to add risk factors for coronary heart disease on DTS to detect the complexity of coronary artery lesions with stable angina pectoris.Methods: This study was a cross-sectional study in stable angina pectoris patient who comes to Haji Adam Malik Hospital Medan from January 2017 until February 2018. Patients who have done treadmill test and coronary angiography, and fulfill inclusion and exclusion criteria are included in the study. ECG examination and recording of risk factors for coronary heart disease were done. DTS assessment was performed based on a treadmill test and Syntax score based on coronary angiography results. Diagnostic tests were performed to assess the sensitivity and specificity of the addition of CHD risk factors to detect the complexity of coronary artery lesions.Results: Of the 76 people with stable angina pectoris, 55 people were found with low SYNTAX and 21 people with high Syntax. DTS is divided into 3 groups: mild (> -10), moderate (-10 to - 13.5), and severe (≤-13.6) based on the cut off of the ROC curve. Risk factors for CHD are divided into 3 groups, mild (≤3 CHD risk factors), moderate (4-6 CHD risk factors), and severe (7 CHD risk factors) based on the cut off of the ROC curve, then assessed the relationship with Syntax which has been divided into 2 groups, low Syntax, and high Syntax. Diagnostic test shows the addition of risk factors of CHD to DTS to detect the complexity of coronary artery lesions have greater sensitivity and specificity than DTS without the addition of risk factors of CHD, 95%, and 89%.Conclusion: The addition of risk factors for coronary heart disease on DTS can detect the complexity of coronary artery lesions.

Background : There were many studies proved that precordial ST depression in Inferior STEMI show LAD disease from angiografi, but there were also many who unproved . Altought LAD disease was not the main cause of precordial ST depression in Inferior STEMI, but there were many patients with Inferior STEMI who had high grade LAD disease. Sum of precordial ST depression is one of ECG criteria that can help us to prove it . The aim of this study in to know if there is corelation between sum of precordial ST depression with LAD disease and the severity of LAD disease in Inferior STEMI patients with precordial ST depression . Methods : We analized 60 patients inferior STEMI with precordial ST depression onset less than 24 hours that hospitalized in Haji Adam Malik General Hospital since December 2013-June 2017. Patients were divided in to 4 groups based on sum of precordial ST depression. Bivariate analysis were made to see the corelation between sum of precordial ST depression with LAD disease and severity of LAD, p value < 0.05 is statistically significant.  Result : Bivariate analysis show that there is strong corelation between sum of precordial ST depression with LAD disease (p=0.01). Sum of precordial ST depression also corelate with severity of LAD (p=0.01). There are also corelation with location of the lesion in proximal LAD and the complexity of the lesion but not statistically significant (p=0.233 and p=0.102). Analysis ROC curve  sum of precordial ST depression to LAD disease give the cut off ≥5.15 mm with sensitivity 70% and spesificity 76.2%(AUC 0,752 ,95% CI: 0,620 – 0,883 p<0,001) Conclusion : There is strong corelation between sum of precordial ST depression with high grade LAD disease. The more the sum of precordial ST depression the more posibility high degree LAD disease ( p=0.01).

Background: Acute Coronary Syndrome (ACS) is a term used to describe symptoms caused by Acute Myocardial Infarction (AMI). At present, risk stratification is carried out with the use of a Global Registry of Acute Coronary Events (GRACE) score as a validated predictor for cardiovascular events among ACS patients. Mean platelet volume (MPV) is an accurate marker of platelet size and can be considered that to be added to the GRACE score to increase the predictive value of the occurrence of major cardiovascular events (MACE). This study aims to seek the comparison between GRACE score independently and GRACE score with the addition of MPV values in predicting major cardiovascular events during in-hospital care in ACS patients. Methods: This study was ambispective cohort study of 219 ACS patients from November 2017 to November 2018. GRACE scores and MPV values were calculated and mace was observed during hospital treatment. An analysis was performed to see the role of MPV addition to GRACE scores in predicting MACE. Results: MPV values and GRACE scores were found to be increased in patients with MACE compared with those who did not. Area under curve (AUC) on the ROC curve obtained 0.786 (95% CI: 0.717-0.855, p<0.001) when the GRACE score was calculated independently, and increased to 0.810 (95% CI: 0.620-0.775, p<0.001) with addition MPV which indicates a combination of MPV and GRACE score increases predictive value. Conclusion: The addition of the MPV value to the GRACE score provides a higher predictive value in predicting MACE in ACS patients in hospital care.

Background Covid-19 is an infectious disease caused by a newly discovered coronavirus that caused acute severe respiratory syndrome and other complication. Many cardiac complication already occurred such as carditis and acute heart failure. PVC bigeminy is a new complication that we found in our post covid-19 patient. Case Summary A 31-years-old female patient admitted to the outpatient department with chief complaint palpitation with chest discomfort in the past 1 month with a history covid-19 infection 3 months ago with prolong covid infection for 2 months. ECG showed sinus rhythm and bigeminy PVC with PVC LBBB morphology left inferior axis and transition zone in V4. The patient planned to do Electrophysiology study and ablation. From the EP study we found 2 type of PVC, both of the PVC have LBBB morphology with left inferior axis and transitional zone in V4. The first PVC had 42ms earliest activation time and the second PVC had 48ms earliest activation. We do ablation with non irrigating catheter on the first PVC but the PVC still remain. Then try with irrigating catheter and do the ablation. After the ablation the PVC already vanished and the ablation was successful. Discussion PVC bigeminy post covid-19 infection is a rare complication in covid-19 patient. PVC bigeminy cause several complain from palpitation, chest discomfort, and shortness of breath. Ablation is one of the best way to treat PVC bigeminy patient with symptoms and in the patient the ablation was successful.