Abstract
It has been suggested that a left atrial (LA) dysfunction induced by large shunt and large atrial septal aneurysm (ASA) may act as a concurrent mechanism of arterial embolism in patients with patent foramen ovale (PFO) and prior stroke. We aimed to evaluate the potential contribution of this mechanism as trigger of migraine in patients with PFO. From January 2007 to September 2009, we prospectively enrolled subjects with migraine who underwent percutaneous PFO closure. Echocardiographic parameter of LA dysfunction was evaluated: pre- and postoperative values were compared to values of different sex and heart rate matched populations: 30 healthy patients, 21 migraine patients without PFO (MwoPFO), and a group of 25 PFO patients without migraine (PFOwoM). The Migraine Disability Assessment Score (MIDAS) was used to assess the incidence and severity of migraine. Forty-five patients (38 females, mean age 38 +/- 6.7 years, mean MIDAS 35.8 +/- 4.7, and 28 patients with migraine with aura) fulfilled the inclusion criteria. After successful percutaneous closure (mean follow-up of 18.2 +/- 4.8 months), PFO closure remained complete in 95%; 35 of 45 patients reported resolution or amelioration of migraine (mean MIDAS score 12.3 +/- 8.8, ...Continue Reading
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