The retrograde approach with collaterals offers a method for treating chronic total occlusions in coronary arteries through percutaneous dilatation.
The controlled antegrade and retrograde tracking (CART) technique enhances the effectiveness of guidewires in navigating these blockages for successful recanalization.
A specific case is presented where a left anterior descending artery occlusion was effectively treated using an ipsilateral intraseptal collateral with the reverse CART method.