Dehydration as an overlooked safety risk in the perioperative environment: Physiological, cognitive and organizational implications for healthcare professionals

Dehydration remains one of the most overlooked occupational risks in the perioperative environment, despite its substantial influence on cognitive performance, physiological stability, and clinical safety. Operating rooms are characterized by low ambient humidity, intense cognitive load, prolonged standing, and restrictive protective clothing, all of which accelerate insensible fluid loss while simultaneously suppressing the perception of thirst. As a result, clinicians frequently experience gradual dehydration without recognizing its early symptoms, which are often misattributed to fatigue or stress. Even mild fluid deficits can impair cerebral oxygenation, slow neural processing, reduce attention, and diminish psychomotor precision, thereby increasing the likelihood of clinical errors in time-sensitive situations. More pronounced dehydration exacerbates cardiovascular strain, thermoregulatory imbalance, mucosal dryness, and musculoskeletal fatigue, all of which compromise endurance, communication, and team coordination during complex procedures. Emotional stability is also affected, with heightened irritability and reduced tolerance to stress further undermining teamwork. Despite these well-documented effects, hydration status is not routinely monitored in perioperative safety protocols, reflecting a systemic underestimation of basic physiological needs within a culture that often valorizes endurance over self-care. Addressing this gap requires organizational measures such as establishing accessible hydration stations, integrating micro-breaks into workflow planning, providing targeted staff education, and incorporating hydration checks into safety checklists. Recognizing dehydration as a legitimate component of perioperative safety is essential for protecting both staff well-being and patient outcomes. By fostering a culture that acknowledges physiological stability as a prerequisite for clinical excellence, healthcare institutions can reduce avoidable risks and strengthen the resilience of perioperative teams.