Brief, factual summary of the article in Slovak: A study found that anesthesia is associated with metabolic changes in the brain of patients with traumatic brain injury (TBI). Using magnetic resonance imaging, the researchers observed changes in the metabolism of glucose and lactate in the brains of patients after anesthesia. These changes were also present in patients who did not undergo surgery, suggesting that anesthesia itself may affect metabolism in the brain. The results point to the need for further research on the effect of anesthesia on the brain, especially in patients with TBI. The clinical implications of these metabolic changes require further investigation.