drug-coated balloon
Specialty balloon catheter with antiproliferative drug coating that delivers medication directly to vessel wall without permanent implant.
Full Definition
Drug-coated balloon (DCB) technology combines conventional balloon angioplasty with local drug delivery, featuring balloons coated with antiproliferative agents (typically paclitaxel) that transfer directly to the vessel wall during inflation without leaving a permanent implant. This approach proves particularly valuable for treating in-stent restenosis, small vessel disease, and bifurcation lesions where stent placement may be suboptimal. DCB therapy offers the mechanical benefits of balloon dilation while providing pharmacological prevention of neointimal hyperplasia. The technology requires rapid drug transfer kinetics, achieved through specialized coating formulations and excipients. Clinical applications continue expanding, with evidence supporting DCB use in native vessel disease, particularly in smaller coronary arteries and complex anatomical scenarios where avoiding additional metallic layers is advantageous.
Usage
Usage note: Hyphenate when used as compound modifier; DCB abbreviation widely accepted.
In Context
- "Drug-coated balloon angioplasty was selected for treatment of in-stent restenosis." — Treatment strategy note
- "The operator deployed a drug-coated balloon to avoid additional stent layers in this bifurcation lesion." — Complex intervention rationale