Ear disorders and Neurologic disorders

Tinnitus

  • Definition: Tinnitus is often not a disease itself but a symptom caused by other underlying issues.

  • Common Causes:

    • Ototoxic medications

    • Possible factors affecting tinnitus include environmental and metabolic contributors.

Ototoxic Medications

  • Importance of Awareness: Health practitioners must educate patients about medications that can cause tinnitus.

  • Key Ototoxic Medications:

    • Lasix (Furosemide): A loop diuretic that can cause ototoxicity.

    • Aspirin: Commonly known, associated with tinnitus when taken in high doses.

    • Nonsteroidal Anti-Inflammatory Drugs (NSAIDs): All NSAIDs listed are ototoxic, including:

    • Ketorolac (Toradol)

    • Calcium Channel Blocker:

    • Nifedipine: Prescribed for hypertension.

    • Antibiotics:

    • Mycins: Such as gentamicin, clindamycin, erythromycin which can lead to ototoxicity.

  • Advice for Patients:

    • If taking these medications, report any ringing or buzzing in ears immediately to prevent permanent tinnitus.

Risk Factors for Ototoxicity

  • Increased Risk in Older Patients:

    • Metabolism Decrease: As individuals age, their bodies can't metabolize medications as efficiently.

  • Monitoring Meds: Importance of peak and trough testing for medications to monitor drug levels before the next dose.

    • Peak: Highest concentration in the blood.

    • Trough: Indicator of how well the medication is being metabolized prior to the next administration.

Benign Paroxysmal Positional Vertigo (BPPV)

  • Definition: A condition characterized by vertigo that occurs with specific changes in head position.

  • Etiology:

    • Caused by dislodged otoconia (little calcium carbonate crystals) within the inner ear.

  • Symptoms:

    • Incapacitating vertigo akin to being spun around and then stopping.

  • Clinical Manifestations:

    • Ataxia

    • Nystagmus (involuntary eye movement)

    • Vertigo (spinning sensation)

  • Diagnostic Test:

    • Dix-Hallpike Maneuver: Used to elicit symptoms and diagnose BPPV by moving the patient into positions that cause the otoconia to float.

  • Management:

    • Epley Maneuver: Repositioning to help settle otoconia back in place; patients must remain upright for 48 to 72 hours post-procedure.

Acoustic Neuroma

  • Definition: A benign tumor on the vestibulocochlear nerve (cranial nerve VIII) affecting hearing and balance.

  • Management:

    • Surgical removal of the tumor if symptomatic.

Neuro Disorders Overview

  • Resources: Medication guide provided through Blackboard, detailing medications for various neuro disorders.

  • Key Neuro Disorders Covered:

    • Multiple Sclerosis (MS)

    • Parkinson's Disease

    • Alzheimer’s Disease

    • Bacterial and Viral Meningitis

Multiple Sclerosis (MS)

  • Definition: An autoimmune disease characterized by the degeneration of myelin sheaths around neurons.

  • Risk Factors: Early onset often between 20-30 years, more common in females, linked to high stress periods.

  • Types of MS:

    • Relapsing-Remitting MS (RRMS): 85-90% of cases, characterized by flare-ups and returns to baseline status.

    • Secondary Progressive MS: Begins as RRMS and gradually worsens without distinct flare-ups.

    • Primary Progressive MS: Gradually worsens from onset without flare-ups.

    • Progressive Relapsing MS: Progressive worsening with occasional acute flare-ups.

  • Common Symptoms:

    • Fatigue, muscle spasms, cognitive impairments, bowel and bladder dysfunction.

    • Parisian depression and various sensory issues (vision changes, pain).

  • Nursing Management Goals:

    • Treat acute exacerbations, manage chronic symptoms, and provide patient education for long-term care.

  • Medications:

    • Disease-modifying therapies (administered via injection or IV).

    • Corticosteroids for managing acute exacerbations (methylprednisolone).

Parkinson's Disease

  • Definition: A neurodegenerative disorder with a primary decrease in dopamine levels.

  • Clinical Manifestations:

    • TRAP acronym: Tremors, Rigidity, Akinesia (bradykinesia), Postural instability.

    • Distinctive ‘shuffling gait’ and ‘cogwheeling’ stiffness during motion.

  • Management:

    • Levodopa and Carbidopa: Medications to manage dopamine levels.

    • Physical therapy to enhance mobility.

  • Surgical Options:

    • Deep brain stimulation as an invasive option for management.

Alzheimer's Disease

  • Definition: A progressive neurodegenerative disorder marked by cognitive decline.

  • Pathophysiology: Characterized by the presence of amyloid plaques and neurofibrillary tangles in the brain.

  • Clinical Manifestations:

    • Five A’s: Amnesia, Aphasia, Agnosia, Apraxia, and Anomia.

    • Early confusion and aggression with progressive loss of independent function.

  • Management Strategies:

    • Non-reversible treatments aimed at slowing decline, mainly through cholinesterase inhibitors (donepezil).

    • Nursing Interventions: Structure, routine, calm environment, and caregiver support essential to maintain patient dignity and provide quality care.