Vascular changes caused by deep brain stimulation using double-dose gadolinium-enhanced brain MRI.

Area of Science:

• Neurosurgery
• Neurology
• Medical Imaging

Background:

• Idiopathic Parkinson's disease (IPD) is a progressive neurodegenerative disorder.
• Medically intractable IPD often necessitates advanced interventions like deep brain stimulation (DBS).
• Subthalamic nuclei (STN) DBS is a recognized treatment for advanced Parkinson's disease.

Purpose of the Study:

• To investigate the effects of staged bilateral deep brain stimulation of the subthalamic nuclei (STN-DBS) on cerebral venous blood flow.
• To assess changes in the dimensions of specific cerebral venous structures post-STN-DBS.

Main Methods:

• Retrospective analysis of clinical data from 32 patients with medically intractable IPD.
• Staged bilateral STN-DBS performed between January 2007 and May 2011.
• Assessment of cerebral vasculature using double-dose gadolinium-enhanced brain MRI.

Main Results:

• Significant reductions were observed in the dimensions of the straight sinus and superior sagittal sinus.
• The ipsilateral internal cerebral vein (thalamic branch) and ipsilateral anterior caudate vein also showed reduced dimensions.
• These vascular changes suggest an impact of STN-DBS on cerebral venous drainage.

Conclusions:

• Bilateral STN-DBS in patients with Parkinson's disease is associated with alterations in cerebral venous blood flow.
• The observed reductions in venous sinus and vein dimensions warrant further investigation into their clinical significance.
• Understanding these vascular effects is crucial for optimizing STN-DBS therapy and patient outcomes.