David E Thaler

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BACKGROUND Despite the diffusion into practice of percutaneous closure of a patent foramen ovale (PFO) in patients with cryptogenic stroke (CS), the benefits have not been demonstrated, and remain unclear. For any individual presenting with a PFO in the setting of CS, it is not clear whether the PFO is pathogenically-related to the index event or an(More)
OBJECTIVE We aimed to create an index to stratify cryptogenic stroke (CS) patients with patent foramen ovale (PFO) by their likelihood that the stroke was related to their PFO. METHODS Using data from 12 component studies, we used generalized linear mixed models to predict the presence of PFO among patients with CS, and derive a simple index to stratify(More)
BACKGROUND AND PURPOSE Patent foramen ovale (PFO) and cryptogenic stroke are commonly associated but some PFOs are incidental. Specific radiological findings associated with PFO may be more likely to indicate a PFO-related cause. We examined whether specific radiological findings are associated with PFO among subjects with cryptogenic stroke and known PFO(More)
Although the prevalence of a patent foramen ovale (PFO) in the general population is ≈25%, it is approximately doubled among cryptogenic stroke (CS) patients. This has generally been attributed to paradoxical embolism, and many physicians recommend PFO closure to prevent recurrence. However, the benefit of PFO closure in patients with stroke has not been(More)
BACKGROUND AND PURPOSE Patients discovered to have a patent foramen ovale in the setting of a cryptogenic stroke may be treated with percutaneous closure, antiplatelet therapy, or anticoagulants. A recent randomized trial (CLOSURE I) did not detect any benefit of closure over medical treatment alone; the optimal medical therapy is also unknown. We(More)
PURPOSE Cervical artery dissections (CDs) are among the most common causes of stroke in young and middle-aged adults. The aim of this scientific statement is to review the current state of evidence on the diagnosis and management of CDs and their statistical association with cervical manipulative therapy (CMT). In some forms of CMT, a high or low amplitude(More)
BACKGROUND AND PURPOSE Dissection of the cervicocranial vessels is the principal cause of ischemic brain injury following cervical spinal manipulation. Cervical spinal manipulation leading to cerebral embolus in the absence of dissection is not described in the literature. Current case documents cerebral embolism originating from extensively calcified(More)
U ntil recently, the evidence base for patent foramen ovale (PFO) closure with a device to prevent future cerebro-vascular events in patients with cryptogenic stroke and presumed paradoxical embolism consisted of a large body of >50 observational studies that cumulatively showed substantial and unequivocal benefits with this intervention. 1 On the basis of(More)
OBJECTIVE To examine predictors of stroke recurrence in patients with a high vs a low likelihood of having an incidental patent foramen ovale (PFO) as defined by the Risk of Paradoxical Embolism (RoPE) score. METHODS Patients in the RoPE database with cryptogenic stroke (CS) and PFO were classified as having a probable PFO-related stroke (RoPE score of(More)
PURPOSE OF REVIEW The cause of stroke remains unknown in roughly one third of patients, despite extensive investigation. The prevalence of patent foramena ovale (PFOs) in the general population is around 25%, but it is doubled in cryptogenic stroke patients. This suggests a causal relationship between PFO and cryptogenic stroke. This has generally been(More)