Characteristics and Outcomes of Heart Failure Outpatients with Improvement in Ejection Fraction in Qatar.

Introduction: Heart failure with reduced ejection fraction (HFrEF) in Qatar has not been well characterized in the outpatient setting.

Objective: To describe the characteristics of patients with HFrEF who had improvement in their left ventricular ejection fraction (LVEF) and independent predictors of improvement.

Methods: This retrospective cohort study conducted at the advanced heart failure (HF) clinic in Qatar recruited patients who visited the clinic between January 2017 and December 2018.

Early predictors of intensive care unit admission among COVID-19 patients in Qatar.

Background: COVID-19 is associated with significant morbidity and mortality. This study aimed to explore the early predictors of intensive care unit (ICU) admission among patients with COVID-19.

Methods: This was a case-control study of adult patients with confirmed COVID-19.

COVID-19-associated hypertriglyceridemia and impact of treatment.

Background: Coronavirus disease 2019 (COVID-19) associated hypertriglyceridemia was observed among patients admitted to intensive care units (ICU) in Qatar. This study aimed to describe COVID-19-associated-hypertriglyceridemia in ICU patients and the impact of treating hypertriglyceridemia on clinical outcomes.

Methods: A retrospective observational cohort study of adult patients who were admitted to the ICU with a confirmed diagnosis of COVID-19 pneumonia according to the World Health Organization criteria.

Medications adherence post-primary percutaneous coronary intervention in acute myocardial infarction: A population-based cohort study.

What Is Known And Objective: The use of medications for secondary prevention is the cornerstone in the treatment of coronary artery disease (CAD). However, adherence to these medications is still suboptimal worldwide. This retrospective observational study aimed to assess the adherence to post-percutaneous coronary intervention (PCI) medications, along with predictors of non-adherence.

Anatomical consideration for optimal position of orthodontic miniscrews in the maxilla: a CBCT appraisal.

Background: Orthodontic miniscrews are commonly used as temporary anchorage devices. Bone thickness and bone depth are important factors when placing miniscrews. There are no studies to assess the maxillary bone thickness for optimum miniscrew placement in a Saudi population.

The psychological impact of COVID-19 pandemic on health care workers in a MERS-CoV endemic country.

Background: The global pandemic of coronavirus disease of 2019 (COVID-19) has led to unprecedented psychological stress on health workers (HCWs). We aimed to assess the psychological impact of COVID-19 on HCWs in comparison to the stress brought on by the Middle East respiratory syndrome coronavirus (MERS-CoV) epidemic in Saudi Arabia.

Method: Between February 5th and 16th, 2020, 811 health-care workers (HCWs) of a tertiary care teaching hospital were invited to fill a questionnaire regarding concerns and worries about the novel coronavirus pandemic, along with Generalized Anxiety Disorder (GAD-7) Anxiety Severity screening tool.

COVID-19 in the Shadows of MERS-CoV in the Kingdom of Saudi Arabia.

Middle East Respiratory Syndrome Coronavirus (MERS-CoV) has plagued the Middle East since it was first reported in 2012. Recently, at the end of December 2019, a cluster of pneumonia cases were reported from Wuhan city, Hubei Province, China, linked to a wet seafood market with a new coronavirus identified as the etiologic agent currently named SARS-CoV-2. Most cases are in Mainland China with international spread to 25 countries.

Progressive coronary aneurysms in Behçet disease, a journey through surgical and percutaneous treatment: A case report.

Behçet disease is a systemic autoimmune disease that causes inflammation within the vascular tree. Coronary arteries are rarely involved with stenosis, arteritis or aneurysm formation. Treatment is mainly directed to reduce the burden of inflammation systemically with steroid and immunosuppressive medications.

Visfatin concentration in Asian Indians is correlated with high density lipoprotein cholesterol and apolipoprotein A1.

Background: Visfatin is a recently described adipose tissue derived hormone whose role in humans remains largely unknown.

Objectives: To determine visfatin's relationship to lipoproteins and body composition parameters in Asian Indians and Caucasians.

Design: A cross-sectional study.

Body composition and the apoB/apoA-I ratio in migrant Asian Indians and white Caucasians in Canada.

Migrant and native South Asians appear to be at increased risk of Type II diabetes mellitus and coronary disease. The aim of the present study was to determine the relationship between the most accurate summary index of the lipoprotein-related risk of vascular disease, the apoB (apolipoprotein B-100)/apoA-I (apolipoprotein A-I) ratio, and body composition in established migrant South Asians and white Caucasians living in Canada. Men and women living in Montreal, Canada between the ages of 20-60 years were recruited for participation in the study.

Leptin and adiponectin in relation to body fat percentage, waist to hip ratio and the apoB/apoA1 ratio in Asian Indian and Caucasian men and women.

Background: Asian Indian immigrants have an increased risk for developing cardiovascular disease (CVD); however, there is very little data examining how the adipokines leptin and adiponectin relate to CVD risk factors such as body fat percentage (BF%), waist to hip ratio (WHR) and the apoB/apoA1 ratio in Asian Indian men and women living in Canada.

Subjects And Methods: A cross-sectional study comparing leptin, adiponectin, lipoproteins and anthropometric parameters in Asian Indian men and women to Caucasian men and women (4 groups). Anthropometric data (BMI, BF%, WHR), circulating lipids (apoA1, apoB, total cholesterol, and HDL-cholesterol), leptin and adiponectin were measured.

The adipocyte life cycle hypothesis.

The adipocyte life cycle hypothesis states that the metabolic properties of an adipocyte vary predictably during its life cycle: that as an adipocyte matures, it accumulates triacylglycerol (triglyceride) and becomes larger; that the rates of triacylglycerol synthesis and lipolysis are matched within adipocytes and that larger adipocytes, in general, have greater rates of triacylglycerol synthesis and, concurrently, greater rates of lipolysis and, therefore, larger adipocytes have greater rates of transmembrane fatty acid flux; and that the secretion of cytokines can also be related to adipocyte size with larger adipocytes having a more unfavourable profile of cytokine secretion than smaller adipocytes. Adipocyte location is an important modifier of this relationship and the favoured sites of adipocyte proliferation are a function of gender and the position within the life cycle of the organism at which proliferation occurs. The adipocyte life cycle hypothesis posits that the metabolic consequences of obesity depend on whether expansion of adipose tissue is achieved primarily by an increase in adipocyte number or adipocyte size.

Atopy in Omani patients with asthma.

Objectives: To determine the range of serum IgE in healthy subjects and in asthmatic patients in Oman and to assess the degree of atopy in the asthmatic patients.

Method: Serum IgE and in vivo (the skin prick test) and in vitro (the ImmunoCAP test) allergen-specific IgE levels were measured in 44 patients with asthma. Control groups were 19 healthy subjects and 27 asymptomatic allergic subjects.