Aug 3, 2022 · A chronic total occlusion (CTO) is a total blockage in one of your coronary arteries lasting three or more months. Your coronary arteries are the blood vessels that carry blood to your heart. CTOs restrict blood flow to your heart, which can …

May 3, 2016 · Coronary artery chronic total occlusions (CTOs) are an exacerbation of stable coronary artery disease (CAD) with advanced calcification.

When a coronary artery becomes completely blocked—not simply narrowed—it is called a total occlusion. And if a complete blockage lasts for 3 months or longer, doctors refer to it as “chronic total occlusion,” or CTO for short.

Jul 24, 2023 · A coronary chronic total occlusion (CTO) is defined as 100% occlusion of a coronary artery for a duration of greater than or equal to 3 months based on angiographic evidence.

The RCA CTO extends proximal until the distal bifurcation at the crux cordis, and receives both ipsilateral collaterals from the proximal RCA (A, closed arrow, CC2 size) and contralateral collaterals from the left coronary system via septal branches (B, closed arrow, CC2 size).

Massachusetts General Hospital offers chronic total occlusion percutaneous coronary intervention (CTO PCI) as a treatment option for patients with chronic total occlusion, or complete blockages, of the coronary arteries.

Apr 26, 2011 · Coronary CTO is characterized by heavy atherosclerotic plaque burden within the artery, resulting in complete (or nearly complete) occlusion of the vessel.

We reviewed the current literature describing the optimal management of CTO including the role of revascularization and choice of modality, i.e., percutaneous coronary intervention (PCI) or coronary artery bypass graft surgery.

Chronic total occlusions (CTO) are considered to be 100% coronary lesions, of more than 3 mo evolution [1]. They are therefore always found in stable chronic patients, with varying levels of symptoms.

CTO is a type of heart disease where an artery becomes completely blocked for at least three months. This prevents blood from getting to the part of the heart supplied by that artery. Without enough blood flow, the heart does not receive the oxygen and nutrients it needs to function properly, resulting in angina.