Effect of General Versus Spinal Anesthesia on Postoperative Delirium and Early Cognitive Dysfunction in Elderly Patients.

Background: Postoperative cognitive dysfunction (POCD) and delirium are common in the elderly patients, given the controversial results of previous studies about the impact of anesthesia type on the occurrence of these complications.

Objectives: This study was planned to compare the effects of general and spinal anesthesia on the prevalence of POCD and delirium.

Methods: A single-blind non-randomized clinical trial.