Day 3 :
Location: Amsterdam, Netherlands
Title: Differences between current clinical and American Heart Association blood pressure measurement techniques
Time : 10:10-10:40
Statement of the Problem: The guidelines recommended by American Heart Association for blood pressure measurement are commonly by health workers who take blood pressure .For taking blood pressure ,it is important to apply standard methods. If we do it with a few mistakes .the result may be effect in patient's medication.
The purpose of this study: Is to compare the rate and accuracy of measuring blood pressure by Health Workers methods and American Heart Association Technique.
Methodology: For validation of this observation we designed a descriptive and observational study to be carried out in seven hospitals. Four hundred health workers divided into four groups (125 nurses 100 nursing students 100 medical students 75 physicians) were evaluated in a two part test. In first part (practical) the examinee had to follow all steps recommended by American Heart Association to get a passing score. In the second part (theoretical which came second to avoid influencing the practical) the examinee had to answer correctly 8 questions based on American Heart Association's guidelines to obtain a passing score.
Findings: 52.5 % of systolic and 49.3% of diastolic readings was out of range. Nursing students obtained the best practical results (52% systolic and 39% diastolic within range) and physicians obtained the lowest values (18.5% and 31.4%). These two groups showed deficiencies in the theoretical test (physicians 7.6% correct answers and Nursing students 19.5%). Medical students obtained the best results on the theoretical test (73% correct P<0.001 versus the other groups) but were deficient in the practical test (28% systolic and 42% diastolic within range).
Conclusion: In conclusion health workers used various techniques for measurement and no completely followed the standard. Such measurements may affect diagnosis and treatment of hypertension but measuring all BPs solely by the standard is not practical. We need to have a practical and efficient method for measuring BP.
Korea Institute of Oriental Medicine, KR
Title: Prediction of pre-hypertension and metabolic syndrome using combined obesity indices based on machine learning
Time : 11:00-11:30
Bum Ju Lee has his expertise in evaluation in association between anthropometric indices and metabolic abnormalities. He studied the relationship between anthropometric indices related to obesity and hypertension, hypotension, type 2 diabetes, hypertriglyceridemia, and serum high- and low-density lipoproteins, and have published many articles with these contents. He is currently a senior researcher in the Korea Institute of Oriental Medicine, Daejeon, Korea. His research interests include data mining and database, bioinformatics, public health, epidemiology, and oriental medicine. Funding: NRF-2006-2005173, NRF-2012-0009830, NRF- 2009-0090900, and NRF-2015M3A9B6027139. BJL: corresponding author.
Statement of the Problem: Hypertension and metabolic syndrome (MetS) are a common health problem. Many previous studies reported that MetS and hypertension were strongly associated with obesity. However, no studies on the prediction of pre-hypertension and MetS using combined anthropometric indices related to obesity have been reported. The objectives of this study were to predict pre-hypertension and MetS using combined anthropometric indices based on machine learning and to evaluate the quality of various predictive models. Methodology & Theoretical Orientation: A total of 3,927 subjects aged 40-70 years participated in this study. To diagnose pre-hypertension and MetS, we considered the recommendations of the National Cholesterol Education Program Adult Treatment Panel III. For anthropometric indices, eight circumferences (forehead, neck, axilla, chest, rib, waist, pelvis, and hip) were measured. We calculated the ratios between the indices. Finally, we extracted a total of 41 variables including age, weight, height, waist-to-hip ratio, waist-to-height ratio, body mass index, neck-to-rib ratio, and so on. For model building, correlation-based feature selection and wrapper-based variable selection based on logistic regression (LR) and naïve Bayes (NB) were used to identify the optimal variable subsets. Findings: There were 1,605 men with pre-hypertension (41%) and 1,136 (29%) with MetS. We tested six models in each disease (Figure 1). The LR-wrapper model showed the highest predictive power. The ROC values for the pre-hypertension and MetS were 0.645 and 0.819, respectively. In MetS, the model using combined indices showed slight improvements in the ROC compared with the waist circumference (ROC = 0.809 by NB and LR), even though waist circumference is one of the five components used to diagnose MetS and is a strong predictor of MetS. Conclusion & Significance: Our results provide insight into a simple and inexpensive method that could be used to identify pre-hypertension and MetS in initial health screening.
Haben Tsehaye is a medical doctor who has been practising in internal medicine and cardiology for the last 6 years. He holds his degrees from Orotta School of medicine. He is very vigilant and hardworking. He has worked in different hospitals. His passion for cardiology has enabled him to work more on this field and take care of patients with cardiac diseases. He has presented many cardiology and internal medicine cases in different occasions. His interest in publishing and research is enormous.
Coronary artery disease remains major health concern and leading cause of death throughout the world. Effective assessment with non-invasive test such as myocardial perfusion scan, exercise stress test and stress echocardiography with dobutamine can provide useful diagnostic and prognostic information.
Here we discuss the role of myocardial perfusion scan in 55 year old hypertensive diabetic and obese patient with exertional chest pain and shortness of breath.
His baseline ECG was normal with some nonspecific ST-T changes and ECHO with EF OF 50% and no structural or regional motion wall abnormality.
Patient was tried with exercise test but because of dyspnea and his obesity will hinder the echocardiography window, we stopped exercise and dobutamine echocardiography test and decided adenosine myocardial perfusion scan.
The MPS scan result showed reversible ischemia in anterioseptoapical portion of the myocardium and then angiography was done and showed 90% stenosis in the mid LAD.
Patient was stented with DES and started on dual antiplatelet and imporved clinically and he is doing good on his follow up and no complaint of dypnea or exertional chest pain.
VU University, Amsterdam, the Netherlands
Title: The joint association of vitamin D and vitamin K with incident hypertension and cardiovascular health
Time : 12:00-12:30
Hanne van Ballegooijen, is a nutritional-epidemiologist who is currently working at the VU University. Her main expertise is in the field of mineral metabolism disturbances and cardiovascular disease risk. After her PhD she received a personal grant (2013) to work at the Kidney Research Institute at the University of Washington, Seattle in the group of Jonathan Himmelfarb and Bryan Kestenbaum and studied nutritional determinants in chronic kidney patients. Her research interests include nutrition and lifestyle determinants in the etiology of chronic diseases. She has a particular interest in how mineral metabolism disturbances affect cardiovascular disease risk. A better understanding of these relationships may help to promote cardiovascular health.
Statement of the Problem: Cardiovascular disease and osteoporosis are major age-related causes of morbidity and premature death that occur among older adults. Emerging evidence suggests that calcium from bone is deposited in the arteries. This leads to calcification in valves and vessels, which is associated with a 3-4 fold higher risk of coronary heart disease. Calcium and vitamin D supplementation is frequently advised in older adults for the prevention of osteoporosis and to reduce the risk of fractures and falls. However, recent RCT's showed that individuals taking calcium and vitamin D were at higher risk of cardiovascular disease. The widespread use of vitamin D and calcium supplements, and the fortification of vitamin D in food products, underscores the need for further investigation.
Recent studies show that vitamin K reduces coronary calcification and cardiovascular disease. New evidence suggests that vitamin K combined with vitamin D can lower vascular calcification more than the effect of either alone. This presentation will give a brief overview of the current body of evidence of joint associations between vitamin D and vitamin K with hypertension and underlying mechanisms of cardiovascular disease in multiple cohort studies.
Conclusion & significance: The combination of low vitamin D and K status is associated with increased blood pressure and might play a role in development of hypertension and cardiovascular disease risk. These promising results of the joint associations of vitamin D and vitamin K in relation to cardiovascular health stimulate further follow-up studies to better understand the clinical implications of this relationship to promote cardiovascular health.
Shahid Beheshti University of Medical Sciences, Iran
Time : 12:30-13:00
Fatemeh Esfarjani is a academic member of food and nutrition policy and planing research department, in national nutrition and food technology research institute , she has years of experience in research, evaluation, teaching and administration both in hospital and education institutions. Her field of interest is in clinical nutrition, she published 23 papers in academic journals and more than 124 abstract presentations in congresses.
Childhood obesity increases the risk of metabolic syndrome (MetS) both in childhood and adulthood. The present study was determined the prevalence of MetS and its potential determinants in a representative sample of obese children. This cross-sectional study was conducted among 150 obese children. body mass index (BMI≥95th percentile) with seven years of age. They were randomly selected from 9 health centers in 3 districts of the north Tehran. Trained nutritionists completed a socio-demographic questionnaire by interviewing parents, and conducted the physical examination. Mets was defined based on modified ATP III criteria. The mean (SD) of weight, height, and BMI was 37.5 (6.3) kg, 127.2 (4.7) cm and 23.08 (2.9) kg/m2, respectively. The prevalence of MetS was 13.4%, without significant difference in terms of gender. The most common component of MetS was abdominal obesity (79%). While 21.3% of children did not have any component of MetS, 42% of them had at least one component. Most children with MetS had a history of breastfeeding for less than 6 months. Waist circumference, systolic and diastolic blood pressure, fasting blood glucose, and triglyceride levels were higher in Mets compared to controls (p<0.05). Logistic regression model revealed that children with birth weight of ≤2500 gr. were at higher risk of MetS than children with a higher birth weight (OR=4.3; 95%CI: 1.1-9.7). Primordial prevention of childhood obesity, screening the components of MetS among obese children and assessing the clustering of risk factors is associated with an increased risk of cardiovascular disease. Therefore, these components should be considered as a health priority at individual and public levels.
Northwestern University, USA
Issam Mikati graduated from the American University of Beirut Medical School. He did Cardiology fellowship at Baylor College of Medicine. He complaeted imaging fellowship at the same institution. He is the associate director of the Echocardiography lab at NorthwesternMemorial hospital in Chicago Illinois. He has published numerous papers in reputed journals and has served as a reviewer of premier journals.
Cardiomyopathy confers a poor prognosis. Early recognition and intervention is key to improve outcome. Classic methods of assessment of LV systolic dysfunction such Left Ventricular Ejection Fraction (LVEF) suffer from wide variance that limits their utility in detection of minor changes in systolic function on serial testing. In addition, the changes in LVEF appear late after significant myocardial damage has occured. This has been shown to affect prognosis of patients. Strain has been shown to be an accurate sensitive marker of LV function with leass varaiance than traditional methods of LV systolic function. It has been shown to drop early in the natural history of many systemic diease that affect the heart such as diabetic cardiomyopathy. Strain shows great promise in management of cardiomyopathies because its efficacy in early detection and potentially effects of treatment.