Isolated Nondominant Right Coronary Stenosis

Abstract

The frequency, clinical presentation, and management of severely stenotic isolated nondominant right coronary artery (NDRCA) have not been adequately defined. We sought to do so in a large cohort of patients undergoing coronary angiography. We retrospectively analyzed all patients who underwent coronary angiography in our institute between 1995 and June 2012, looking at those with a severe lesion in the NDRCA, recording demographic, clinical, and angiographic data. Of the 43,327 patients, 35 (0.08%) were found to have a severely stenotic NDRCA as a single-vessel disease. The most common indication for catheterization was acute coronary syndrome (49%). Most of the patients were managed conservatively (66%) and the entire group had a relatively benign course, with no coronary deaths. Severe stenosis of the NDRCA as isolated disease is a very rare entity, and although most commonly presenting with acute coronary syndrome, conservative management was the usual approach.

Acute Thrombotic Occlusion of Non-Dominant Right Coronary Artery Presenting as Acute Coronary Syndrome and Hemodynamic Instability

“…The incidence of isolated NDRCA disease was 0.08%, with only 35 cases described over 18 years [9] . The most common indication of coronary angiography was acute coronary syndrome [9] . Our patient presented with the acute coronary syndrome and atrial fibrillation.…”

“…The prevalence, clinical characteristics, and treatment of the severe isolated NDRCA disease in a cohort of 35 catheterized patients have been described by Ilia et al [9] . The incidence of isolated NDRCA disease was 0.08%, with only 35 cases described over 18 years [9] . The most common indication of coronary angiography was acute coronary syndrome [9] .…”