Publications by authors named "Amir A Ahmadi"
Objectives: To investigate potential differences in plaque progression (PP) between in East Asians and Caucasians as well as to determine clinical predictors of PP in East Asians.
Background: Studies have demonstrated differences in cardiovascular risk factors as well as plaque burden and progression across different ethnic groups.
Methods: The study comprised 955 East Asians (age 60.
Article Synopsis
- The study aimed to explore how atherosclerotic plaque volume changes in patients with chronic kidney disease (CKD) and declining kidney function using coronary computed tomography angiography (CCTA).
- A total of 891 participants were analyzed, revealing that while CKD patients had higher baseline plaque volumes, their overall plaque progression was similar to those without CKD.
- In contrast, patients with declining renal function experienced a significant increase in plaque progression, with non-calcified plaques driving the change, highlighting that a decline in kidney function, not the presence of CKD, is linked to more rapid plaque growth.
Background: Within the SCOT-HEART (Scottish COmputed Tomography of the HEART Trial) trial of patients with stable chest pain, the use of coronary computed tomography angiography (CTA) reduced the rate of death from coronary heart disease or nonfatal myocardial infarction (primary endpoint).
Objectives: This study sought to assess the consistency and mechanisms of the 5-year reduction in this endpoint.
Methods: In this open-label trial, 4,146 participants were randomized to standard care alone or standard care plus coronary CTA.
Purpose: To examine the prognostic implication of fractional flow reserve (FFR) derived from coronary CT (FFR) in routine clinical practice.
Materials And Methods: Patients referred for FFR analysis at a single center between October 2015 and June 2017 were retrospectively included and followed up for rates of invasive angiography and clinical events. Two hundred seven patients underwent successful FFR analysis with seven lost to follow-up, leaving 200 (mean age ± standard deviation, 62.
Abnormal Fractional Flow Reserve in Nonobstructive Coronary Artery Disease.
Circ Cardiovasc Interv
February 2019
Background The basis of discordance between invasive coronary angiographic (ICA) anatomic stenosis and fractional flow reserve (FFR) is not fully understood. We analyzed coronary computed tomography angiography (CTA) characteristics of ICA-verified nonobstructive lesions in the proximal or midleft anterior descending artery with FFR ≤0.8, that is, anatomy-physiology mismatch.
View Article and Find Full Text PDFBackground: The aim of the study is examine the impact of non-obstructive (<50%stenosis) left main (LM) disease on the natural history of coronary artery disease using serial coronary computed tomography angiography (CTA).
Methods: CTAs from the PARADIGM (Progression of atherosclerotic plaque determined by computed tomographic angiography imaging) study, a prospective multinational registry of patients who underwent serial CTA at a ≥2 year interval were analyzed. Those without evidence of CAD on their baseline scan were excluded, as were those with obstructive left main disease.
Post-vaccination myositis and myocarditis in a previously healthy male.
Allergy Asthma Clin Immunol
February 2016
Background: The immunological literature has been redefining clinical phenomena as hypotheses emerge regarding causal links between triggers, immunologic manifestations, and their specific inflammatory cascades. Of late, autoimmune manifestations that appear to be caused by an external adjuvant have been grouped into a complex syndrome referred to as autoimmune/inflammatory syndrome induced by adjuvants (ASIA). This syndrome may present with diverse clinical problems, which may include neurocognitive impairment, inflammatory musculoskeletal changes, and constitutional symptoms.
View Article and Find Full Text PDFObjective: To evaluate the effect of intravitreal bevacizumab on visual acuity (VA) and central retinal thickness (CRT) in patients with macular edema (ME) secondary to branch retinal vein occlusion (BRVO).
Design: Retrospective review.
Participants: The study included 42 patients with ME secondary to BRVO who received intravitreal injections of bevacizumab in 2 referral-based retinal practices in Vancouver, B.