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Stroke-Like Migraine Attacks After Radiation Therapy (SMART) Syndrome: A Diagnostic Challenge a Decade After Cranial Irradiation

Year: 2025

Type: article

Abstract: Stroke-like migraine attacks after radiation therapy (SMART) syndrome is a rare, late complication of cranial radiotherapy characterized by recurrent neurological symptoms, which may include headaches, hemiparesis, aphasia, seizures and confusion. The condition typically manifests years after radiation exposure, with magnetic resonance imaging (MRI) showing transient, reversible cortical abnormalities in previously irradiated regions. Although often self-limiting, neurological recovery may be incomplete in some cases. We present the case of a 64-year-old elderly male with a prior history of cranial irradiation received in 2015 who was admitted with abnormal body movements. Initial blood investigations and a non-contrast CT head were unremarkable. The MRI brain scan demonstrated deep white matter ischemic changes with no new focal lesions compared to a prior scan. Cerebrospinal fluid analysis was normal. Electroencephalography revealed focal onset seizures with secondary generalization. Following neurology review, antiepileptic therapy was optimized. Based on the clinical history, radiological findings, and seizure disorder, a diagnosis of SMART syndrome was made. The patient gradually improved his level of consciousness with a decrease in seizure activity with good neurological recovery.

Source: Cureus

DOI: 10.7759/cureus.98494

Authors: Akshayaa K Aggarawal, Nang Soe Yamin Mon, Mansoor Gazi

Institution: Walsall Manor Hospital

Language: English

Topic: Neurological Complications and Syndromes

Subfield: Psychiatry and Mental health

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: diamond

OpenAlex ID: W4417026565