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J Neurointerv Surg. 2013 May;5(3):237-46. doi: 10.1136/neurintsurg-2012-010299. Epub 2012 Mar 29.

Immediate procedural outcomes in 35 consecutive pipeline embolization cases: a single-center, single-user experience.

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1
Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, USA.

Abstract

BACKGROUND AND OBJECTIVE:

Flow diverters are an exciting new class of endovascular devices that treat aneurysms by curative reconstruction of the parent artery. The Pipeline embolization device (PED) is the first FDA-approved intracranial flow diverting device available in the USA. This paper presents periprocedural results with the device in a series of 35 consecutive cases.

METHODS:

All patients who underwent PED treatment of an intracranial aneurysm at our institution following FDA approval of the device in April 2011 were included in the series. Patient demographics, aneurysm characteristics, procedural details and technical and clinical outcomes were analyzed.

RESULTS:

Thirty-four patients (age range 23-78 years, mean 56.4 years) with 41 unruptured aneurysms (37 anterior circulation, four posterior circulation, mean size 11.4 mm, 20/21 large or giant) were treated with the PED in 35 cases (one patient had bilateral aneurysms treated on 2 separate occasions). Thirty-four of 35 cases (97%) were successfully completed. A total of 64 PEDs were implanted, with a mean number of 1.2 PEDs implanted per anterior circulation cases and 6.5 per posterior circulation cases. A single PED was implanted in 73% of cases. Immediate flow disruption occurred in 97% of the cases. The overall rate of major stroke or mortality was 3% (1/35 patients). Minor stroke, cranial nerve palsy, transient neurological deficit and groin complication occurred in one patient each (3% each, 12% total).

CONCLUSION:

Treatment of cerebral aneurysms with the PED carries an acceptable risk profile when a rigorous and uniform technique is used. Although the long-term results will need to be analyzed, the immediate procedural outcomes in the study series using this technique appear quite promising.

PMID:
22459178
DOI:
10.1136/neurintsurg-2012-010299
[Indexed for MEDLINE]
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