Patients who underwent T-2 sympathectomy demonstrated a significant increase in blood flow volume and flow velocities of the CAs and MCA, especially on the left side. Asymmetry of sympathetic influence on the hemodynamics of the CAs and MCA was noted. The usefulness of sympathectomy for the treatment of ischemic cardiovascular and cerebrovascular disease deserves further investigation.
Journal on Neurosurgery March 1999 Volume 90, Number 3
http://thejns.org/doi/abs/10.3171/jns.1999.90.3.0463