Technological advancements and technique improvements have significantly enhanced the success rate of percutaneous interventions for treating chronic total occlusions (CTO). Angiographic scores and CTO-PCI algorithms are valuable tools that help us select the optimal strategy when planning these procedures. The retrograde strategy, specifically, has proven beneficial in addressing complex CTOs. However, standardized tools to predict...
Chronic total occlusions (CTO) occur in up to 20% of patients undergoing diagnostic angiographic studies. Over the past two decades, the optimization of recanalization techniques, the development of new specialized devices, and improvement in operator skill have contributed to an increased procedural success rate, reaching 90%. However, specific complications such as collateral perforation and access...
The antegrade dissection and re-entry (ADR) technique is considered essential for the management of chronic total occlusions (CTO). It serves as the primary option in some protocols for complex and extensive lesions or as a backup strategy in case of failure with other initial strategies. Dissection techniques include guided methods such as scratch and go,...
The retrograde approach for recanalizing chronic total occlusions (CTO) has undergone significant evolution since its introduction in 1990, improving both in terms of techniques and specialized materials. The increased skill applied to this strategy has resulted in increased success rates for the treatment of CTO in sites with an adequate volume of procedures. Given the...
Percutaneous treatment of chronic total occlusions has increase, and has become a a more habitual therapeutic challenge. However, there is limited information on distal vessel quality and its association with outcomes and techniques. This variable appears to be excluded form CTO scores, except for the RECHARGE (REgistry of CrossBoss and Hybrid procedures in FrAnce, the...
Studies and registries assessing sex differences in chronic total occlusions (CTO) are limited and women are under-represented, accounting for only 14%-21% of included patients. Even though success rate is comparable between sexes, several studies have shown higher complications rate among women. The aim of this study was to identify sex related baseline and procedural differences,...
How to Choose the Best Approach in Chronic Total Occlusions, by Dr. Jean-Michel Paradis CTO are present in around 16 to 20% of patients with coronary artery disease who get a coronary angiography. CTO Percutaneous intervention has been on the rise, mainly due to equipment and technique advancement. During his presentation, Dr. Paradis mentioned the...
Is a chronic total occlusion worth rechanneling? This question can often be found in different studies, all of them with clinical endpoints. This study (soon to be published in J Am Coll Cardiol Intv.) analyzes another aspect: costs, not only derived from materials used for a successful procedure, but also from materials and hospital stay...
Even in the hands of experienced operators, rechanneling and angioplasty of a chronic total occlusion (CTO) results in patients and the whole cath lab team receiving high doses of radiation, according to this registry presented at the American Heart Association 2017 Scientific Sessions. Up to 23% of patients who undergo rechanneling of a CTO receive...
Collateral circulation develops during the gradual progression of coronary occlusions in order to replace the original artery and supply blood to areas jeopardized by ischemia. However, the relevance of collaterals has remained controversial for many years. Several works have suggested a rapid regression of collaterals after rechanneling of chronic total coronary occlusions, which could render...