Long-Lasting Symptomatic Cerebral Hyperperfusion Syndrome following Superficial Temporal Artery-Middle Cerebral Artery Bypass in a Patient with Stenosis of Middle Cerebral Artery

<div>Pre- and postoperative neuroradiologic examinations. (a) Arterial spin labelling (ASL) of MRI showing decrease of CBF in the left brain when the patient presented with right hand weakness and numbness; (b) ASL on postoperative day (POD) 5 showing an increase of CBF in the left cerebrum; (c) preoperative single-photon emission computed tomography (SPECT) showing no apparent laterality in CBF. (d) SPECT on POD12 showing remarkable increase of CBF in the left cerebrum; (e) MRI T2WI on POD16 showing slightly hypointense change in the subcortex of the left cerebrum (arrows). (f) SPECT on POD33 showing normalization of CBF.</div>

Case Reports in Neurological Medicine

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Figure 2: Long-Lasting Symptomatic Cerebral Hyperperfusion Syndrome following Superficial Temporal Artery-Middle Cerebral Artery Bypass in a Patient with Stenosis of Middle Cerebral Artery 

Figure 2 | Long-Lasting Symptomatic Cerebral Hyperperfusion Syndrome following Superficial Temporal Artery-Middle Cerebral Artery Bypass in a Patient with Stenosis of Middle Cerebral Artery 