Endovascular electrocoagulation for treating a blister-like microaneurysm with an extremely narrow neck: A case report.

BACKGROUND: Intracranial blister-like microaneurysms are an extremely rare disease. Rupture of intracranial aneurysms can lead to subarachnoid hemorrhage (SAH). Patients with SAH may experience severe neurological symptoms, including severe headache, nausea, vomiting, transient or persistent loss of consciousness, limb weakness, and blurred vision. Ruptured aneurysms should be surgically treated as soon as possible. Intravascular electrocoagulation is becoming a promising treatment method for intracranial blister-like microaneurysms. The short-term follow-up results demonstrated that this method is safe and effective. This article presents a case of endovascular electrocoagulation for the treatment of a blister-like microaneurysm.

CASE SUMMARY: This article reports the case of 71-year-old female patient with an intracranial aneurysm. The patient experienced a sudden headache with vomiting for 3 hours. Brain computed tomography (CT) scan showed a subarachnoid hemorrhage. She was diagnosed with rupture of an aneurysm and subarachnoid hemorrhage. The aneurysm was located in the choroidal segment of the right internal carotid artery. The size of the aneurysm was 2.00 mm × 1.80 mm × 1.97 mm, and the neck of the aneurysm was less than 0.5 mm wide. We successfully treated this aneurysm with endovascular electrocoagulation, and the patient was safely returned to the ward and discharged after subsequent supportive treatment. CT angiography reexamination 3 months after surgery revealed no contrast agent extravasation in the original lesion, with a good prognosis.

CONCLUSION: Endovascular electrocoagulation is an effective and safe method for the treatment of intracranial blister-like microaneurysms.