Microembolic Air Load During Contrast-Transcranial Doppler: A Trigger for Migraine With Aura?

Autor: Chiara Falcone, Gennaro Bussone, Domenico D'Amico, Susanna Usai, Luigi Caputi, Gian Paolo Anzola, Maria Rita Carriero, Licia Grazzi, Eugenio Parati, Massimo Del Sette
Rok vydání: 2010
Předmět:
Zdroj: Headache: The Journal of Head and Face Pain. 50:1320-1327
ISSN: 0017-8748
Popis: (Headache 2010;50:1320-1327) Background.— There is a well-known association between migraine with aura (MA) and right-to-left shunt (RILES) because of patent foramen ovale (PFO). The occurrence of MA attacks after microbubble (MB) injection during contrast-enhanced transcranial Doppler (ce-TCD) has been recently described. Objectives.— The aim of this study was to analyze the prevalence of RILES in a consecutive cohort of MA patients and to characterize the occurrence of MA attacks after diagnostic ce-TCD. Methods.— A total of 159 consecutive MA patients underwent ce-TCD with air-mixed saline to disclose RILES. RILES was characterized in terms of MB amount (small-moderate or large) and occurrence at rest and/or during Valsalva maneuver (permanent or latent). Results.— RILES was revealed in 79/159 patients (∼50%). Permanent RILES were detected in 56/79 (71%) and latent RILES in 23/79 (29%) MA patients. The occurrence of a typical MA attack was overall observed in 12/159 patients (7.5%; 95% CI: 4-12.8%), but arose only in RILES-positive ones, immediately after ce-TCD (12/79; 15.2%; P
Databáze: OpenAIRE