[Effect of the selected parameters on the development of postoperative cognitive dysfunction]

Area of Science:

• Anesthesiology
• Geriatric Medicine
• Neuroscience

Context:

• Postoperative complications like cognitive impairment, depression, and delayed recovery can follow surgery and anesthesia.
• Older adults undergoing various surgical procedures are particularly susceptible to these adverse outcomes.

Purpose:

• To investigate the impact of key risk factors on cognitive performance and emotional state in patients receiving general anesthesia.
• To assess the correlation between anesthesia duration, arterial oxygenation, body temperature, pain, and neoplastic disease with cognitive function.

Summary:

• A study involving patients aged 65-83 undergoing general anesthesia found a positive correlation between impaired arterial oxygen saturation (SaO2) on postoperative day one and lower cognitive function (assessed by Mini-Mental State Examination).
• Conversely, a negative correlation was observed with the Visual Analog Scale (VAS) pain score on postoperative days 1 and 5.
• Neoplastic disease, body temperature, and anesthesia duration did not significantly influence cognitive function in this cohort.

Impact:

• Findings underscore the critical role of maintaining adequate arterial oxygenation in the immediate postoperative period to mitigate cognitive decline in older surgical patients.
• The study suggests that current pain assessment methods may not fully capture the relationship between pain severity and cognitive function in this population.
• Results inform clinical practice regarding risk factor management to improve postoperative recovery and cognitive outcomes.