Popis: |
During the past two decades, there has been an explosive increase in the number of techniques and devices used to treat obstructed coronary arteries. Since its introduction in 1977 (1), catheter balloon angioplasty has gained wide acceptance as a nonsurgical form of therapy for acutely and chronically obstructed coronary arteries, and this technique forms the centerpiece around which newer tools and techniques have been developed. Of the many interventional devices currently used or under study, their morphologic effects (“remodeling”) on vessel luminal shape or obstruction can be separated into two underlying processes (2): (a) remodeling (“displacing,” “expanding,” “attaching”) and (b) removing (“heating,” “drilling,” “excising”) (Tables 1, 2). This chapter will review acute and chronic changes of remodeling after balloon angioplasty and other interventional techniques. |