Abstract
The transsylvian approach(TSA)and interhemispheric approach(IHA)are two basic and important surgical approaches for the treatment of cerebral aneurysms. The TSA is usually the first choice for treating middle cerebral artery aneurysms but is sometimes used for treating even anterior communicating artery, internal carotid artery, and basilar artery aneurysms. In contrast, the IHA is usually the first choice for treating anterior communicating artery and distal anterior cerebral artery aneurysms. Young inexperienced neurosurgeons may find these approaches difficult to perform without blood loss. Therefore, the aim of this study was to provide useful tips regarding hemostasis, brain retraction, and intraoperative microscope magnification for performing the TSA and IHA without blood loss by using intraoperative photography.
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