A 32-year-old man was admitted to the emergency room with a history of sudden headaches, vomiting, and drowsiness. His past medical history showed arterial hypertension. On neurological examination, he was confused without localized neurological deficits. A computerized tomography (CT) scan showed a dense subarachnoid hemorrhage (SAH) with blood in the fourth ventricle. He underwent a digital angiography, which revealed a 6 mm fusiform SCA aneurysm without other signs of vascular dissection [].\nThe patient underwent surgery on the 15th post-hemorrhage day. He was positioned in park bench. A lumbar catheter was inserted and the cerebrospinal fluid (CSF) was drained to induce brain relaxation. A right subtemporal approach was performed, starting with a straight incision over the parietal branch of the STA. This artery was then dissected 10 cm from subcutaneous tissue under microscopic assistance. The temporal muscle was incised and a basal temporal craniotomy was performed. At that time, the lumbar drain was opened and 20 ml of CSF was drained. After a gentle lifting of the temporal lobe, the perimesencephalic cisterns were visualized and opened widely. The cerebellar tent was then incised. A fusiform dilatation of the SCA was observed between the anterior and lateral mesencephalopontine segments. The perforator arteries to brainstem were visualized proximal and distal to the aneurysm. A segment of the artery distal to the aneurysm that did not have perforator arteries was identified as the location for the anastomosis. The STA was then prepared for a terminolateral anastomosis. Temporary clips were positioned in the SCA segment and this artery was then opened and cleaned with heparin solution. Anastomosis was then performed in 40 min with 10-0 nylon single stitches. At the end of the procedure, the temporary clips were opened in a sequential manner. The patency of the anastomosis was confirmed by a micro-Doppler probe. Finally, aneurysm trapping was performed.\nThe patient had an unremarkable recovery and was discharged on postoperative day 7, with a prescription for 100 mg aspirin daily. The postoperative angiogram showed the patency of the bypass, with an excellent filling of the distal SCA segments from the bypass and total aneurysm exclusion [].
A 50-year-old lady, who had a history of hypertension, presented with severe headache and ataxia. CT scan done at admission showed acute right cerebellar hematoma []. DSA done subsequently revealed fusiform aneurysm of the cisternal segment of the SCA []. Endovascular treatment was done under general anesthesia with inside out coiling of the aneurysm with platinum coils []. Standard heparin protocol was followed and an activated clotting time greater than 250 s was maintained during the procedure. 5F Envoy (cordis) guiding catheter was placed in the distal vertebral artery. A combination of echelon-10 micro-catheter (ev3) and transcend 0.014 micro-wire (Stryker) were used to access the aneurysms and multiple axiom (ev3) coils were used to occlude the aneurysm. Post-coiling angiogram showed complete exclusion of the aneurysm from the circulation. The post-operative period was uneventful. The patient's neurological examination done after 1 month was completely normal. Control angiogram done at the end of 1 year showed stable occlusion with no re-canalization of the aneurysm [].