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People with OSA are prone to develop atherosclerosis: Study

April 22, 2017

Non-calcified plaque is considered bad plaque, because it is more vulnerable to rupturing and causing a blood clot, which could lead to a heart attack or other cardiovascular event.

Patients with OSA also had a significantly higher prevalence of vessel narrowing and more extensive vessel involvement. Eighty-eight percent of OSA patients had narrowing in at least one vessel, compared to 59 percent of non-OSA patients. One-third of OSA patients had narrowing in four vessels.

"Coronary CT angiography is an effective way to noninvasively diagnose non-calcified and mixed plaque," Dr. Schoepf said. "With technological advancements that are lowering the radiation dose required for cCTA, this exam could become a screening tool for obese individuals at increased risk for cardiovascular disease."

Source: Radiological Society of North America