ArticleFrontiers in aging neuroscience2026
Intraventricular hemorrhage, suspected EBV reactivation, and TBA-positive epilepsy after deep cervical lymphovenous anastomosis in Alzheimer's disease: a case report.
Article in Frontiers in aging neuroscience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Lymphovenous anastomosis (LVA) is emerging as a potential surgical intervention to ameliorate cervical lymphatic outflow and enhance glymphatic clearance in Alzheimer's disease (AD). However, the spectrum of neurological sequelae associated with this procedure remains poorly characterized. We report the case of a 67-years-old male with amyloid PET-confirmed AD who underwent bilateral deep cervical LVA. Twenty-three days postoperatively, he presented with high-grade fever and altered consciousness. Head CT revealed acute hemorrhage in the posterior horn of the left lateral ventricle (∼2 mL). Cerebrospinal fluid (CSF) analysis demonstrated lymphocytic pleocytosis and significantly elevated protein levels; the fluid was uniformly bloody, confirming intraventricular hemorrhage. Plasma metagenomic next-generation sequencing (mNGS) identified Epstein-Barr virus (EBV), with serology supporting reactivation. Following antiviral and empirical antibiotic therapy, the patient's condition stabilized, and the hemorrhage resolved. Four months postoperatively, he developed new-onset generalized seizures. Despite negative results from a conventional autoimmune encephalitis antibody panel in both serum and CSF, a tissue-based assay (TBA) proved positive in both samples. Seizures were successfully controlled with levetiracetam. This case suggests a potential association between invasive lymphatic procedures and a hemorrhage-infection-immune cascade in highly vulnerable AD patients with preexisting metabolic and neurodegenerative risk factors.
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