Development of a coronary artery aneurysm three months after stent implantation: a case report.
Coronary artery stents have been used widely to prevent acute closure as a bailout procedure, or to decrease restenosis after balloon angioplasty. Stent use has increased substantially in recent years due to the ease and simplicity with which stents provide a predictable angiographic result. However, few data exist on the long-term safety of stents. This case report describes a 63-year-old male patient who developed intimal dissection after balloon angioplasty and who underwent coronary stent placement of a sheathed stent (half Palmaz-Schatz stent, 3.5 mm in diameter and 7 mm in length) as a bailout procedure. Postdilatation with a 3.5-mm balloon was performed at the maximum pressure of 14 atmospheres with a satisfactory angiographic result. However, an aneurysmal dilatation at the stent site was noted three months later. High-pressure stent use without immediately visible vascular dissection by angiography may not be effective for prevention of coronary aneurysm development in a case such as this. Aneurysmal dilatation may be a late complication in cases of coronary artery stent placement.
Liu
Y C
YC
Department of Medicine, Veterans General Hospital-Taipei, Taiwan, ROC.
Lin
S J
SJ
Ding
P Y
PY
Chang
M S
MS
D017130:Angioplasty / Q000009:adverse effects*; D015906:Angioplasty, Balloon, Coronary; D003323:Coronary Aneurysm / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D015607:Stents / Q000009:adverse effects*