INTRODUCTION: Studies to assess the hemodynamic status of patients with moyamoya syndrome are often done to determine the need for surgical revascularization. These studies, including transcranial Doppler (TCD) ultrasonography to assess vasomotor reactivity (VMR) to CO(2), are generally considered safe. CASE: We describe a patient with moyamoya syndrome who experienced a subarachnoid hemorrhage (SAH) following TCD with CO(2) challenge. CONCLUSION: SAH has not previously been described as a complication of CO(2) challenge in patients with moyamoya syndrome. While such complications are rare, it is important to consider the possibility of harm related to VMR testing in patients with advanced vasculopathy.
INTRODUCTION: Studies to assess the hemodynamic status of patients with moyamoya syndrome are often done to determine the need for surgical revascularization. These studies, including transcranial Doppler (TCD) ultrasonography to assess vasomotor reactivity (VMR) to CO(2), are generally considered safe. CASE: We describe a patient with moyamoya syndrome who experienced a subarachnoid hemorrhage (SAH) following TCD with CO(2) challenge. CONCLUSION:SAH has not previously been described as a complication of CO(2) challenge in patients with moyamoya syndrome. While such complications are rare, it is important to consider the possibility of harm related to VMR testing in patients with advanced vasculopathy.
Authors: Raphael Guzman; Marco Lee; Achal Achrol; Teresa Bell-Stephens; Michael Kelly; Huy M Do; Michael P Marks; Gary K Steinberg Journal: J Neurosurg Date: 2009-11 Impact factor: 5.115