The First Step: Identifying the Underlying Cause
Successful treatment of delirium is highly dependent on accurately and promptly identifying the precipitating factor. Since delirium is not a disease itself but a syndrome with various triggers, hospitals employ a methodical approach to pinpoint the cause.
Comprehensive Medical Evaluation
Upon recognizing the signs of delirium, the care team conducts a thorough medical workup. This begins with a detailed history, including a review of all medications, both prescription and over-the-counter, that the patient was taking before admission. Medications, especially anticholinergics, opioids, and sedatives, are a frequent cause of delirium and are often discontinued or adjusted.
- Medication Review: A pharmacist or physician scrutinizes the patient's drug regimen for new medications, recent dose changes, or the discontinuation of chronic medications like alcohol or benzodiazepines.
- Infection Screening: Common infections, such as urinary tract infections (UTIs) or pneumonia, can trigger delirium. The hospital performs tests like blood and urine cultures, urinalysis, and chest X-rays to check for infection.
- Metabolic and Electrolyte Analysis: Blood tests are ordered to check for imbalances in electrolytes (sodium, calcium), kidney and liver function, blood sugar levels, and thyroid function, which are all potential causes.
- Addressing Pain: Untreated or inadequately managed pain is a major precipitant of delirium. The care team assesses and manages the patient's pain using non-opioid medications and other strategies where possible.
The Foundation of Care: Non-Pharmacological Interventions
Non-pharmacological strategies are the cornerstone of delirium management and are prioritized over medication. These interventions focus on supporting the patient's brain function and creating a safe, therapeutic environment.
Environmental and Supportive Measures
These steps aim to reduce sensory overload, provide cognitive stimulation, and maintain a consistent routine.
- Optimizing the Environment: The patient's room is kept quiet and calm, especially at night, with minimal distractions. Natural light is used during the day to help regulate the sleep-wake cycle, and a clock and calendar are placed in clear view.
- Reorientation Techniques: Staff and family members should frequently reorient the patient by calmly stating the time, date, place, and reason for their hospital stay. Simple, clear communication is essential, avoiding arguments or excessive questioning.
- Sensory Aids: Ensuring the patient has their eyeglasses, hearing aids, and dentures readily available and in use helps reduce confusion and improve their connection to the environment.
- Early Mobilization: The care team encourages and assists the patient to get out of bed and engage in light physical activity, which can significantly shorten the duration of delirium.
- Family Involvement: Familiar faces are incredibly reassuring. Hospitals encourage family and friends to visit and participate in the patient's care, offering comfort and familiarity.
Medication's Role: A Cautious and Targeted Approach
Medication is not used to cure delirium but to manage severe, unmanageable symptoms that pose a threat to the patient's or staff's safety. The use of psychotropic medication is approached with extreme caution, particularly in older adults.
When Medications Are Necessary
If non-pharmacological methods fail to control severe agitation, fear, or hallucinations, a physician may prescribe a low-dose antipsychotic for a short period.
- Antipsychotics: Medications like haloperidol or atypical antipsychotics (e.g., risperidone, quetiapine) may be used. The lowest effective dose is given for the shortest possible duration, as these medications carry risks for older adults.
- Benzodiazepine Avoidance: In most cases, benzodiazepines are avoided as they can worsen delirium. They are only appropriate for treating delirium caused by alcohol or sedative withdrawal.
The Multidisciplinary Team Effort
Effectively treating delirium requires the collaboration of many healthcare professionals. The coordinated effort ensures all aspects of the patient's well-being are addressed.
Team Member | Role in Delirium Care |
---|---|
Hospitalist/Physician | Diagnoses delirium, determines and treats the underlying medical cause, and manages overall medical care. |
Nursing Staff | Provides continuous bedside care, implements non-pharmacological strategies, monitors symptoms, and reassures the patient. |
Pharmacist | Reviews all medications to identify and mitigate drugs that may cause or worsen delirium. |
Physical/Occupational Therapists | Promotes early mobilization and helps maintain the patient's daily routine and cognitive function. |
Social Worker | Supports the family and patient, assisting with long-term care planning and addressing psychosocial needs. |
Family/Caregivers | Offers comfort, provides familiarity, and assists with reorientation and symptom monitoring. |
Preventing Delirium in At-Risk Seniors
Prevention is the most effective approach to managing delirium. Hospitals implement proactive strategies to reduce the risk in vulnerable patients.
The Hospital Elder Life Program (HELP)
Many hospitals adopt multicomponent intervention programs like HELP, which target key risk factors for delirium, including sleep deprivation, immobility, sensory impairment, and dehydration. This preventative approach has been shown to reduce the incidence and duration of delirium significantly.
Key components include:
- Daily cognitive engagement activities.
- Protocols for uninterrupted sleep at night.
- Assistance with vision and hearing aids.
- Early and consistent mobilization.
- Management of hydration and nutrition.
- For more information on these strategies, visit Health in Aging for caregiver resources.
Conclusion
Hospitals treat delirium in the elderly through a methodical and multidisciplinary approach centered on finding and resolving the underlying cause. While medication can play a limited role in managing severe symptoms, the primary focus is on non-pharmacological interventions that create a safe, supportive, and orienting environment for the patient. By combining expert medical care with compassionate, coordinated supportive strategies, hospitals can help older adults recover from this challenging condition and minimize long-term health consequences.