A Systematic Review of Systematic Reviews on the COVID-19 Pandemic.

COVID-19 a systemic inflammation involving multiple organs, affecting all age groups, with high mortality rate, severe adverse outcomes, and high economic burden need to be described. A systematic review of systematic reviews conducted. We searched PubMed, OVID Medline, Cochrane library, COVID-19 resource centers of N Engl.

The Relationship Between Premature Myocardial Infarction with TC/HDL-C Ratio Subgroups in a Multiple Risk Factor Model.

Introduction: So far, there is no evidence available to demonstrate the relationship between five subgroups of total cholesterol/high density lipoprotein cholesterol (TC/HDL-C) ratio with premature myocardial infarction (MI).

Objective: We conducted a case control study to probe more features of the relation between TC/HDL-C ratio and the five subgroups of the ratio with myocardial infarction under 55 years and above it.

Method: A hospital based case control study with incident cases was designed.

Medical student's benefit rates from the clinical teaching rounds and its associated factors in Tehran University of Medical Sciences in the year 2010.

Among the various methods of clinical teaching, rounds and grand rounds are considered as the gold standards. Clinical round includes some standard components and it plays an effective role in student's learning process. The aim of this study was to evaluate the content of teaching rounds in 40 clinical wards in 4 medical teaching hospitals affiliated to Tehran University of Medical Sciences in Tehran, Iran, and also to assess the learners benefit rate from these programs and determine the factors affecting those.

Ankle-Brachial Index as a Prognostic Factor and Screening Tool in Coronary Artery Disease: Does it Work?

Background: Given the lack of consistency in the literature regarding the reliability of the ankle-brachial index (ABI) as a valid screening tool and an independent risk indicator of cardiovascular events and mortality, we compared it with angiography as a reference standard test.

Methods: This case-control study, conducted between 2010 and 2011 in Tehran Heart Center, recruited 362 angiographically confirmed cases of coronary artery disease (CAD) and 337 controls. A standard protocol was used to measure the ABI and different CAD risk factors.

Does a medical management program for CKD patients postpone renal replacement therapy and mortality? A 5-year-cohort study.

Background: Many countries have started screening and prevention programs for chronic kidney disease (CKD). However, one of the main concerns of health authorities is whether management strategies for diagnosed CKD patients can decrease mortality or morbidity. This study aimed to investigate the effect of two competing clinical strategies of treatments under nephrologists' supervision compared with no treatment on the frequency of the need to start renal replacement therapy (RRT) and mortality in CKD patients.

Relationship between the pattern of coronary artery disease risk factors and lipid ratios with five groups of body mass index in 28566 healthy adults.

Pattern of the coronary artery disease (CAD) risk factors across body mass index (BMI) categories remains uncertain. There is a different threshold of obesity for increasing cardiovascular hazard across populations, accordingly recognition and management of obesity and overweight can guide better control of CAD epidemic in the national level. To determine the discrepancy in the prevalence of CAD risk factors across five BMI categories.

Pattern of coronary artery disease risk factors in population younger than 55 years and above 55 years: a population study of 31999 healthy individuals.

More than eighty percent of patients with coronary heart diseases (CHD) have conventional risk factors. Prevalence of well known risk factors seems to show a different pattern in younger patients and individual above 55 years. To evaluate the pattern of conventional CHD risk factors in healthy individuals in two different age groups.

Teaching evidence-based medicine more effectively.

Unlabelled: Evidence-based Medicine (EBM) is becoming an integral component of graduate medical education competency and a requirement for grad medical education practice-based learning core competency. This study tries to compare the efficacy of conferences utilizing small-group discussions with the traditional conference method in enhancing EBM competency. The participants in this randomized controlled trial (RCT) were 170 members of the medical faculty who were divided into two groups of 86 (intervention) and 84 (control).

Multiple inflammatory prognostic factors in acute coronary syndromes: a prospective inception cohort study.

Inflammatory basis in pathopoiesis of coronary artery disease (CAD) have been demonstrated in recent decades. Elevated C-Reactive Protein (CRP) and leukocytosis were associated with an elevated risk for acute coronary syndrome (ACS). To evaluate the relationship between quantitative CRP and cardiac troponin I in conjunction with white blood cell (WBC) count and 30 days outcomes and treatment planning in patients with ACS.

Trend of lipid ratios associated with well known risk factors of coronary artery disease in different age: a population based study of 31,999 healthy individuals.

Background: Developing current evidence in order to better assess the rates and pattern of the CAD risk factors among populations is pivotal in CAD risk stratification.

Methods: A large scale population based survey involving 31,999 healthy people was designed. Risk factors information was provided from medical history, physical examination and laboratory assessments.

Screening for decreased renal function in taxi drivers in Tehran, Iran.

Background And Objectives: The rapid increase in end stage renal disease (ESRD) prevalence, plus the enormous cost of treatment, necessitates an urgent approach to implement strategies to prevent development and progression of ESRD, especially in the developing world. Screening that leads to early identification and treatment has been recommended, as it may slow or prevent progression to a more expensive and disabling stage of the disease and thus may save lives as well as finite resources.

Methods: In 2007, the Healthy City Office of Tehran municipality conducted a large-scale population-based cross-sectional survey titled "Kidney Disease Screening of Taxi Drivers in Tehran.

Iranian school teachers: knowledge and attitude toward ecstasy.

Unlabelled: The drug ecstasy has been increasingly used for recreational purposes, especially among students. Teachers play an important role in altering student attitudes toward ecstasy.

Objective: The aim of this study was to access teacher knowledge and attitude toward ecstasy and its side effects.

Outcome of coronary artery bypass grafting in patients without major risk factors and patients with at least one major risk factor for coronary artery disease.

Background: Coronary artery bypass grafting (CABG) has become a safer procedure in recent years.

Aims: We aimed to compare complications and early outcome of CABG in patients without history of general risk factors with those in patients with at least one general risk factor for coronary artery disease (CAD).

Settings And Design: Cross-sectional study.

Overweight and obesity and their associated factors in adolescents in Tehran, Iran, 2004-2005.

Overview: Obesity is a significant health crisis around the world. Of great concern are the data pointing to the recent increase in the prevalence of obesity irregardless of age group and country. Overweight and obesity in adolescence are markers of overweight and obesity in adults, respectively.