Table 1.

Probable causes of ICH after DBS

• Venous hypertension (and venous infarction)[8] • Traumatic brain injury (TBI)[9] • Degenerative vasculopathy[10] • Number of microelectrode recording penetrations[11] • Sulcal or ventricular incursion[11] • Delayed erosion of vessel by catheter (in a setting of degenerative vasculopathy)[10] • Damage of the vasculature caused by brain tissue displacement owing to cerebrospinal fluid loss[1] • UnsTable microbleeds from injury to small vessels[12] • Neovascularization[7] • Minor head trauma and recovery[13] (Shear stress because of the difference in density of the lead and surrounding brain tissue)