Does a Low-wall Coverage Stent Have a Flow Diverting Effect in Small Aneurysms? / 신경중재치료의학
Neurointervention
;
: 89-93, 2015.
Article
in English
| WPRIM
| ID: wpr-730296
ABSTRACT
BACKBROUND AND PURPOSE:
The flow diverting effect of a low-wall coverage stent remains controversial. We evaluted patients who underwent stenting for small aneurysms with a low but potential risk of growth and reviewed related literature. MATERIALS ANDMETHODS:
We evaluated 9 small aneurysms among 19 unruptured intracranial aneurysms from eight patients who underwent stenting. The patients had unexplainable severe headache (n = 8), aneurysm originating from the anterior choroidal artery (n = 3), potential growth or rupture risks including hypertension (n = 5), and multiple aneurysms (n = 6). Stents with a relatively low-wall coverage ratio (8-10%) were used. Clinical and angiographic outcomes were assessed.RESULTS:
One (n = 8) or two stents (n = 1) were used without any procedural difficulties or complications. Although no immediate changes of aneurysm morphology were observed, aneurysms decreased in size (n = 8) when examined by DSA (n = 8) or MRA (n = 1) during a median 28.9-month follow-up. There were no adverse events, including thromboembolism, aneurysm rupture, or stent movement during a median 31.9-month clinical follow-up (range 17-69 months).CONCLUSION:
Although a variable degree of aneurysm size decrease may not prevent further growth or rupture of small aneurysms, stenting with a low-wall coverage ratio may have some advantageous hemodynamic effect. Flow modification of stent architecture vs. aneurysm characteristics, including size and location, on long-term outcome, requires further clarification.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Arteries
/
Rupture
/
Thromboembolism
/
Stents
/
Intracranial Aneurysm
/
Follow-Up Studies
/
Choroid
/
Headache
/
Hemodynamics
/
Hypertension
Type of study:
Observational study
/
Prognostic study
Limits:
Humans
Language:
English
Journal:
Neurointervention
Year:
2015
Type:
Article
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