Intermediate
Technical
IVT
predilatation
Balloon inflation performed before stent deployment to prepare the coronary lesion for optimal stent expansion.
Full Definition
Predilatation is a preparatory step in percutaneous coronary intervention involving balloon inflation at the lesion site before stent placement. This technique helps assess lesion compliance, ensures adequate vessel preparation, and may improve subsequent stent expansion and apposition. The decision to perform predilatation versus direct stenting depends on lesion characteristics, calcification, and operator preference. Some studies suggest direct stenting may reduce procedural time and contrast use in suitable lesions.
Usage
Usage note: Can be hyphenated (pre-dilatation) but single word form is increasingly preferred.
In Context
- "Predilatation with a 2.5mm balloon was performed to assess lesion compliance." — Interventional procedure report
- "The heavily calcified lesion required predilatation before successful stent deployment." — Complex intervention description
Also known as
pre-dilatation
lesion preparation
Contrasted with
direct stenting
Don't confuse with
postdilatation
primary dilatation