ABSTRACT
Supratentorial tumors (STTs) are the most common intracranial neoplasms in geriatric patients. The neurosurgical approach for these patients was largely conservative, possibly due to the fear of increased mortality. This chapter provides an overview of these fundamental concepts: physiology of aging, functional neuroanatomy of the supratentorial (ST) region, and common STTs and their pertinent clinicopathological considerations in geriatric patients. It discusses the preoperative planning, principles of neuroanesthesia for STT surgery, and the postoperative management of these patients. The ST compartment consists of the two cerebral hemispheres: diencephalon, basal ganglia, ventricles, and the white matter tracts. The age-related decrease in the renal blood flow, glomerular filtration rate, and tubular function, combined with an altered autoregulation, predispose older patients to a higher risk of perioperative acute kidney injury, especially due to nephrotoxic drugs. The falx cerebri is a double fold of dura mater that descends through the interhemispheric fissure in the midline of the brain between the two cerebral hemispheres.
