Post-Intubation Hypotension in Adults Receiving Emergency Airway Management

Post-intubation hypotension (PIH) is a frequent hemodynamic complication following emergency endotracheal intubation in critically ill adults and has become an important indicator of adverse clinical outcomes. Emergency airway management is commonly performed in patients with respiratory failure, shock, trauma, sepsis, or altered consciousness, many of whom have limited physiological reserve before intubation. The transition from spontaneous breathing to positive-pressure ventilation, together with the cardiovascular effects of induction agents and neuromuscular blockade, can precipitate a significant decline in blood pressure immediately after successful airway placement. Although often transient, PIH has been associated with impaired tissue perfusion, organ dysfunction, prolonged intensive care unit admission, longer duration of mechanical ventilation, and increased in-hospital mortality. Current evidence suggests that the development of PIH is influenced by multiple interacting factors, including pre-existing hypotension, hypovolemia, advanced age, cardiovascular disease, sepsis, trauma, severity of illness, and the selection and dosing of induction medications. Recognition of these risk factors has shifted attention toward physiological optimization before intubation, emphasizing careful assessment of volume status, appropriate choice of sedative agents, early vasopressor support when indicated, and continuous hemodynamic monitoring throughout the peri-intubation period. Despite increasing awareness, considerable variability persists in the definitions of PIH and in approaches to its prevention and management, limiting comparisons among published studies and the development of standardized clinical guidelines. Emerging research continues to support individualized airway management strategies that account for each patient's underlying physiological condition rather than relying solely on technical success of endotracheal intubation. Strengthening evidence regarding risk prediction, preventive interventions, and standardized management protocols may improve hemodynamic stability and reduce complications associated with emergency airway management. Greater consistency in future investigations will contribute to improved understanding of PIH and facilitate the implementation of evidence-based practices aimed at optimizing outcomes in critically ill adult patients requiring emergency airway intervention.