CC BY-NC-ND 4.0 · Asian J Neurosurg 2024; 19(02): 295-300
DOI: 10.1055/s-0044-1787053
Case Report

Does Vascular Dementia Exist? Report of Two Cases Previously Diagnosed with Vascular Dementia Treated by Means of Ventriculoatrial Shunts

Hari K. Garachetla
1   Department of Neurosurgery, Paras Hospitals, New Delhi, India
2   Department of Neurosurgery, Fujita Health University, Bantane Hospital, Nagoya, Japan
2   Department of Neurosurgery, Fujita Health University, Bantane Hospital, Nagoya, Japan
3   NPH Centre, Abiko Seijinkai Hospital, Abiko, Japan
4   Department of Neurosurgery, Jifukai Atsuchi Neurosurgical Hospital, Japan
Ryosuke Takagi
5   Department of Neurosurgery, Yokohama City University Medical Centre, Yokohama, Japan
Yoko Kato
2   Department of Neurosurgery, Fujita Health University, Bantane Hospital, Nagoya, Japan
› Author Affiliations
Funding None.


Vascular dementia (VaD) is the second most common cause of dementia after Alzheimer's disease. While new therapeutic modalities have been available for Alzheimer's disease, there is currently no effective treatment for VaD. We encountered two cases with VaD who recovered their cognitive function to normal levels after ventriculoatrial shunt (VA shunt). Both cases complained cognitive impairment shortly after cerebral infarctions. Their brain images showed ventricular dilatation without the findings of disproportionately enlarged subarachnoid space hydrocephalus, which is regarded as characteristic for idiopathic normal pressure hydrocephalus (iNPH). Both cases were initially diagnosed as VaD by board neurosurgeons. However, since they showed positive response to lumbar tap test, VA shunts were performed. Both cases recovered their cognitive function to normal level. Their excellent cognitive outcomes after VA shunts indicate that many iNPH patients with lacunar infarcts may possibly be misdiagnosed as VaD.

Ethical Approval

Institutional board approval was obtained, and consent from both patients and their family was obtained ensuring anonymity.

Publication History

Article published online:
05 June 2024

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