Delayed Leukoencephalopathy : A Rare Complication after Coiling of Cerebral Aneurysms

© 2020 by American Journal of Neuroradiology..

BACKGROUND AND PURPOSE: Delayed leukoencephalopathy is a rare complication that occurs after endovascular coiling of cerebral aneurysms. We aimed to describe a clinical picture of delayed leukoencephalopathy and explore potential associations with procedural characteristics.

MATERIALS AND METHODS: We considered endovascular coiling procedures for cerebral aneurysms performed between January 2006 and December 2017 in our institution with follow-up MRIs. We used logistic regression models to estimate the ORs of delayed leukoencephalopathy for each procedural characteristic.

RESULTS: We reviewed 1754 endovascular coiling procedures of 1594 aneurysms. Sixteen of 1722 (0.9%) procedures demonstrated delayed leukoencephalopathy on follow-up FLAIR MR imaging examinations after a median period of 71.5 days (interquartile range, 30-101 days) in the form of high-signal changes in the white matter at locations remote from the coil mass. Seven patients had headaches or hemiparesis, and 9 patients were asymptomatic. All imaging-associated changes improved subsequently. We found indications suggesting an association between delayed leukoencephalopathy and the number of microcatheters used per procedure (P = .009), along with indications suggesting that these procedures required larger median volumes of contrast medium (225 versus 175 mL, OR = 5.5, P = .008) as well as a longer median fluoroscopy duration (123.6 versus 99.3 minutes, OR = 3.0, P = .06). Our data did not suggest that delayed leukoencephalopathy was associated with the number of coils (P = .57), microguidewires (P = .35), and guiding systems (P = .57).

CONCLUSIONS: Delayed leukoencephalopathy after coiling of cerebral aneurysms may have multiple etiologies such as foreign body emboli, contrast-induced encephalopathy, or hypersensitivity reaction to foreign bodies.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:41

Enthalten in:

AJNR. American journal of neuroradiology - 41(2020), 2 vom: 29. Feb., Seite 286-292

Sprache:

Englisch

Beteiligte Personen:

Ikemura, A [VerfasserIn]
Ishibashi, T [VerfasserIn]
Otani, K [VerfasserIn]
Yuki, I [VerfasserIn]
Kodama, T [VerfasserIn]
Kan, I [VerfasserIn]
Kato, N [VerfasserIn]
Murayama, Y [VerfasserIn]

Links:

Volltext

Themen:

Journal Article

Anmerkungen:

Date Completed 29.09.2020

Date Revised 01.02.2021

published: Print-Electronic

Citation Status MEDLINE

doi:

10.3174/ajnr.A6386

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM305972294