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Confusional state — Clinical Guidelines

Overview

Confusional state refers to a condition characterized by altered mental status, often observed in various clinical settings including geriatric care and intensive care units, where patients exhibit disorientation, impaired cognition, and altered behavior 4.

Diagnosis

Assess plasma osmolality levels, particularly in geriatric patients, as hyperosmolar states can indicate underlying issues 4.

Evaluate cognitive impairment as a significant risk factor for developing hyperosmolar states 4.

Consider infection presence, as it frequently accompanies hyperosmolar states 4.

Monitor physical and neurologic components of medical diagnoses, especially in pediatric populations, as they can affect sedation success 6.

Management

Address underlying causes such as infections and metabolic disturbances 4.

Evaluate and manage cognitive impairment through appropriate interventions 4.

For sedation in compromised patients, consider oral meperidine and promethazine, with careful consideration of CNS-active medications and neurologic diagnoses 6.

Use flumazenil cautiously for arousal in sedated patients; monitor for transient cardiovascular effects 7.

Special Populations

Geriatrics: Cognitive impairment significantly increases the risk of hyperosmolar states; closely monitor and manage infections 4.

Pediatrics: Sedation success can be predicted by the presence of CNS-active medications and neurologic diagnoses; tailor sedation protocols accordingly 6.

Key Recommendations

Screen for cognitive impairment and infections in geriatric patients presenting with confusional states to guide management (Evidence: Strong 4).

Tailor sedation strategies in pediatric patients based on their medical diagnosis, particularly considering neurologic involvement and medication use (Evidence: Moderate 6).

Use flumazenil for brief arousal assessments in ICU patients, monitoring for transient cardiovascular responses post-administration (Evidence: Moderate 7).

References

1 Lang Z, Attema AE, Lipman SA. The effect of duration and time preference on the gap between adult and child health state valuations in time trade-off. The European journal of health economics : HEPAC : health economics in prevention and care 2024. link 2 Åström M, Conte H, Berg J, Burström K. 'Like holding the axe on who should live or not': adolescents' and adults' perceptions of valuing children's health states using a standardised valuation protocol for the EQ-5D-Y-3L. Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation 2022. link 3 Klann JG, Szolovits P, Downs SM, Schadow G. Decision support from local data: creating adaptive order menus from past clinician behavior. Journal of biomedical informatics 2014. link 4 Bourdel-Marchasson I, Proux S, Dehail P, Muller F, Richard-Harston S, Traissac T et al.. One-year incidence of hyperosmolar states and prognosis in a geriatric acute care unit. Gerontology 2004. link 5 Kamijo Y, Masuda T, Nishikawa T, Tsuruta H, Ohwada T. Cardiovascular response and stress reaction to flumazenil injection in patients under infusion with midazolam. Critical care medicine 2000. link 6 Haney KL, McWhorter AG, Seale NS. An assessment of the success of meperidine and promethazine sedation in medically compromised children. ASDC journal of dentistry for children 1993. link 7 Fisher GC, Clapham MC, Hutton P. Flumazenil in intensive care. The duration of arousal after an assessment dose. Anaesthesia 1991. link

Confusional state