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Titolo:
Embolization of cerebral arteriovenous malformations achieved with polyvinyl alcohol particles: Angiographic reappearance and complications
Autore:
Sorimachi, T; Koike, T; Takeuchi, S; Minakawa, T; Abe, H; Nishimaki, K; Ito, Y; Tanaka, R;
Indirizzi:
Niigata Univ, Brain Res Inst, Dept Neurosurg, Niigata 951, Japan Niigata Univ Niigata Japan 951 Inst, Dept Neurosurg, Niigata 951, Japan
Titolo Testata:
AMERICAN JOURNAL OF NEURORADIOLOGY
fascicolo: 7, volume: 20, anno: 1999,
pagine: 1323 - 1328
SICI:
0195-6108(199908)20:7<1323:EOCAMA>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHOTON EMISSION CT; FOLLOW-UP; BRAIN; RADIOSURGERY; EXPERIENCE; IMPROVEMENT; MANAGEMENT; EXCISION; SAFETY; AVMS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Sorimachi, T Niigata Univ, Brain Res Inst, Dept Neurosurg, 1-757 Asahimachi, Niigata 951, Japan Niigata Univ 1-757 Asahimachi Niigata Japan 951 a 951, Japan
Citazione:
T. Sorimachi et al., "Embolization of cerebral arteriovenous malformations achieved with polyvinyl alcohol particles: Angiographic reappearance and complications", AM J NEUROR, 20(7), 1999, pp. 1323-1328

Abstract

BACKGROUND AND PURPOSE: The appropriate choice of embolic materials with respect to the permanency of obliterated nidi after embolization and complications related to the procedure is essential for safe and effective embolization of cerebral arteriovenous malformations (AVMs), Our purpose was to ascertain the recanalization and complication rates after AVM treatment with polyvinyl alcohol (PVA) particles. METHODS: Between 1988 and 1994, 36 AVMs were embolized with PVA particles at our institution. Follow-up angiographic findings and occurrence of complications during the embolization procedures were analyzed retrospectively. RESULTS: Complete obliteration of the nidus immediately after embolizationwas achieved in five patients, and 80% to 99% obliteration was attained in12 patients. Fifty-one follow-up angiographic examinations were performed 1 week to 60 months (mean, 7 months) after embolization in 31 patients. An increase in nidal size was seen on 15 follow-up angiograms (29%) and a decrease was seen in seven (14%), In 28 of the 51 angiograms obtained more than1 month after follow up (mean, 13 months), 12 (43%) showed AVM enlargement. In four (80%) of five cases of complete obliteration, nidi reappeared on follow-up angiograms, Hemorrhagic complications occurred in three cases andischemic ones in seven. One patient (3%) died and five (14%) suffered persistent neurologic deficits. CONCLUSION: Embolization with PVA particles can produce significant volumereduction in AVM nidal size, but recanalization is a distinct possibility.

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Documento generato il 29/11/20 alle ore 07:04:12