Current practice of percutaneous coronary intervention on patients with acute coronary syndrome in Iran: A prospective observational study.

Frequent Percutaneous Coronary Intervention (PCI) procedures are being performed on a daily basis in Iran. However, no study has been reported on the current PCI practice in patients with acute coronary syndrome (ACS) in Iran. We aimed to describe the clinical characteristics and treatment patterns in Iranian ACS patients treated with PCI.

National and sub-national exposure to ambient fine particulate matter (PM) and its attributable burden of disease in Iran from 1990 to 2016.

Ambient particulate matter is a public health concern. We aimed (1) to estimate national and provincial long-term exposure of Iranians to ambient particulate matter (PM) < 2.5 μm (PM) from 1990 to 2016, and (2) to estimate the national and provincial burden of disease attributable to PM in Iran.

Real life management of chronic urticaria: Multicenter and cross sectional study on patients and dermatologists in Iran.

Recently, advances in understanding the etiology of urticaria and updates of diagnostic and therapeutic management guidelines have drawn attention to chronic urticaria (CU) morbidity. The present study aimed to evaluate Iranian dermatologists' practice and real life management of CU patients. A total of 35 dermatologists and 443 patients were included in the study.

Comparative Effectiveness Study in Multiple Sclerosis Patients Using Instrumental Variable Analysis.

Randomized clinical trials are considered the ideal source for generation of robust evidence for clinical and public health decision making. Estimation of treatment effect in observational studies is always subject to varying degrees of bias due to lack of random allocation, blindness, precise definition of intervention, as well as the existence of potential unknown and unmeasured confounding variables. Unlike other conventional methods, instrumental variable analysis (IVA), as a method for controlling confounding bias in non-randomized studies, attempts to estimate the treatment effect with the least bias even without knowing and measuring the potential confounders in the causal pathway.

Comparison of linoleic acid-containing water-in-oil emulsion with urea-containing water-in-oil emulsion in the treatment of atopic dermatitis: a randomized clinical trial.

Background: Application of topical moisturizers is an essential part of the management of atopic dermatitis (AD). Linoleic acid (LA), the most abundant fatty acid in the epidermis, and its derivatives have an essential role in the structure and function of the epidermal barrier, and their defects are prominent in AD. The aim of this study was to compare the efficacy and safety of two cosmetic products containing either LA or urea in patients with AD.

Estimating the prevalence of illicit drug use among students using the crosswise model.

Objective: The aim of our study is to compare the prevalence of illicit drug use estimated through a technique referred to as the "crosswise model" (CM) with the results from conventional direct questioning (DQ).

Method: About 1,500 students from Tehran University of Medical Sciences 2009-2010 were first interviewed by DQ and, then three months later, by the CM.

Result: The CM yielded significantly higher estimates than DQ for lifetime prevalence of use of any illicit drug (CM = 20.

Enzymatic digestion improves testicular sperm retrieval in non-obstructive azoospermic patients.

Background: In patients with non-obstructive azoospermia (NOA), vital spermatozoa from the tissue is obtained from testes by enzymatic treatment besides the mechanical treatment.

Objective: To increase the sperm recovery success of testicular sperm extraction (TESE), with enzymatic digestion if no sperm is obtained from testis tissue by mechanical method.

Materials And Methods: Tissue samples were collected from 150 men who presented with clinical and laboratory data indicating NOA by means of TESE and micro dissection TESE methods.

Health impact assessment of air pollution in Shiraz, Iran: a two-part study.

We aimed to assess health-impacts of short-term exposure to the air pollutants including PM10, SO2, and NO2 in Shiraz, Iran in a two-part study from 2008 to 2010. In part I, local relative risks (RRs) and baseline incidences (BIs) were calculate using generalized additive models. In part II, we estimated the number of excess hospitalizations (NEHs) due to cardiovascular diseases (CDs), respiratory diseases (RDs), respiratory diseases in elderly group (RDsE-people older than 65 years old), and chronic obstructive pulmonary diseases (COPDs) as a result of exposure to air pollutants using AirQ model, which is proposed approach for air pollution health impact assessment by World Health Organization.

Survival analysis of Iranian patients undergoing continuous ambulatory peritoneal dialysis using cure model.

Background: Peritoneal dialysis is one of the most prevalent types of dialysis prescribed to the patients suffering from renal failure. Studies on the factors affecting the survival of these patients have mainly used log-rank test and Cox analysis. The present study aimed to investigate the risk factors affecting short- and long term survival of patients on continuous ambulatory peritoneal dialysis (CAPD) using cure model.