Causes of acute vessel closure after balloon angioplasty
Dissection, recoil, thrombosis and spasm are the common causes of acute vessel closure after balloon angioplasty (PTCA). Stenting the vessel after angioplasty can reduce the chance of acute vessel closure markedly. That is why POBA (plain old balloon angioplasty) is seldom a definitive procedure now a days. Balloon angioplasty is invariably followed by stent implantation unless the vessel is too small to be stented or there is poor distal run off likely to cause acute stent thrombosis.