Curriculum
Course: AMC Clinical: Medicine and Surgery
Login

Curriculum

AMC Clinical: Medicine and Surgery

Video lesson

Fall in Elderly

Falls in the Elderly: A Multifactorial Approach

1. Analysis of Presenting Scenario +

Based on the transcript, a typical scenario involves an elderly patient presenting after a fall at home. The patient likely has multiple comorbidities, is on several medications (e.g., a benzodiazepine like Temazepam for sleep, antihypertensives), and may consume alcohol. The fall may have occurred during a postural change, like getting up from a chair. The core task is to identify the multiple contributing factors and explain them clearly to the patient, formulating a comprehensive management plan.

2. AMC Exam: First 2 Minutes Analysis & Plan +

During the reading time for a station on falls in the elderly, your approach should be:

  1. Identify Patient & Task: Elderly patient, post-fall. The task is likely a combination of focused history, requesting examination findings, and counselling/management planning. Note any specific instructions, like “explain the likely causes.”
  2. Prioritise Differentials: The primary “diagnosis” is a multifactorial fall. However, you must actively rule out sinister specific causes. Think “SPLINTS” or a similar mnemonic for falls:
    • Syncope (Cardiac: arrhythmia, structural; Vasovagal)
    • Postural Hypotension
    • Loco-motor/Gait/Balance issues (Arthritis, frailty, Parkinson’s)
    • Illness (Acute infection like UTI, pneumonia)
    • Neurological (Stroke/TIA, seizure, vestibular issues)
    • Treatments (Medications: polypharmacy, psychoactives, antihypertensives)
    • Sight/Sensory deficits & Situational factors (Environment)
  3. Structure the Consultation:
    • History: Start with open questions about the fall itself (“Tell me what happened”). Use the SPLINTS mnemonic to guide your focused questions (e.g., “Did you feel dizzy or lightheaded beforehand?”, “Any palpitations?”, “What medications are you taking?”). Remember to ask about the “long lie” (time spent on the floor) and any injuries sustained.
    • Examination Plan: Mentally list the key findings to request: Vitals (including lying and standing blood pressure), cardiovascular exam, neurological exam (including gait, balance, and cognition), and musculoskeletal assessment.
    • Explanation Plan: Based on the transcript’s advice, plan to state upfront that the fall is likely due to a combination of factors. List them first, then elaborate on each one as time permits.

3. Key Performance Indicators (KPIs) for this Case +

Clinical Acumen

  • Recognising the multifactorial nature of falls in the elderly.
  • Systematically considering and ruling out “not-to-miss” differential diagnoses.
  • Identifying high-risk medications and their contribution to fall risk.

Clinical Skills

  • Taking a structured, comprehensive falls history.
  • Correctly requesting and interpreting key examination findings (especially lying and standing BP).
  • Formulating a holistic, multidisciplinary management plan.

Patient Safety

  • Identifying and acting on modifiable risk factors (e.g., medication review, environmental hazards).
  • Recognising red flags requiring urgent hospital admission (e.g., significant injury, concerning ECG).
  • Assessing and mitigating the risk of future falls.

Communication

  • Explaining complex medical concepts (like postural hypotension, medication interactions) in simple, jargon-free language.
  • Demonstrating empathy and building rapport.
  • Using a shared decision-making approach for the management plan.

4. Differential Diagnosis Considerations +

When an older person presents after a fall, consider the following, ordered by likelihood in a typical primary care setting:

  • Most Likely – Multifactorial Fall: The fall is a result of the cumulative effect of multiple, often subtle, intrinsic and extrinsic factors (e.g., combination of poor vision, osteoarthritis, polypharmacy, and a loose rug). This is the default and most common diagnosis.
  • Common – Specific Triggers:
    • Orthostatic (Postural) Hypotension: A drop in blood pressure upon standing, leading to cerebral hypoperfusion and dizziness/fall. Often exacerbated by antihypertensives, dehydration, or prolonged bed rest.
    • Medication-Related Fall: A direct consequence of a drug’s side effect, such as sedation from a benzodiazepine (Temazepam), diuretic-induced volume depletion, or alpha-blocker induced postural drop.
    • Acute Intercurrent Illness: An underlying infection (e.g., Urinary Tract Infection, pneumonia) causing delirium, weakness, or hypotension, leading to a fall.
  • Not-to-Miss – Potentially Life-Threatening:
    • Cardiac Syncope: Fall caused by a sudden loss of consciousness from a cardiac cause. Suspect if there are palpitations, chest pain, no prodrome, or a family history of sudden death. Key causes are arrhythmias (e.g., VT, heart block) or structural heart disease (e.g., aortic stenosis).
    • Stroke / Transient Ischaemic Attack (TIA): A fall accompanied by focal neurological signs (e.g., unilateral weakness, facial droop, speech disturbance).
    • Seizure: A fall with features of a seizure, such as tonic-clonic movements, tongue biting, incontinence, or a prolonged post-ictal state.
  • Less Common:
    • Vestibular Dysfunction: Conditions like Benign Paroxysmal Positional Vertigo (BPPV) or vestibular neuritis causing severe vertigo and imbalance.
    • Severe Anaemia: Gradual onset of weakness and postural dizziness leading to a fall.

5. Detailed Case Information: Multifactorial Falls in the Elderly +

What it is (Definition)

A fall is an event which results in a person coming to rest inadvertently on the ground or floor or other lower level. In the elderly, falls are rarely due to a single cause. A multifactorial fall is one that results from the combined, interacting effects of multiple risk factors. The assessment and management must address this complexity.

Epidemiology (Australian Context)

  • Falls are a major public health issue in Australia. Approximately 1 in 3 people aged 65 and over living in the community fall at least once a year.
  • Falls are the leading cause of injury-related hospitalisation and death in people aged 65 and over.
  • In 2019-20, there were 229,000 hospitalisations due to injury for older Australians, with 45% of these being due to falls. Hip fractures are a common and devastating consequence.

Etiology and Pathophysiology

The risk of falling arises from a complex interaction between intrinsic (person-specific), extrinsic (environmental), and situational factors.

  • Intrinsic Factors:
    • Age-Related Physiological Changes: Decreased muscle mass (sarcopenia), slower reaction time, impaired gait and balance, reduced proprioception, and impaired vision.
    • Cardiovascular: Orthostatic hypotension (a drop in SBP ≥20 mmHg or DBP ≥10 mmHg within 3 minutes of standing), carotid sinus hypersensitivity, arrhythmias.
    • Neurological & Cognitive: Previous stroke, Parkinson’s disease, dementia/cognitive impairment, peripheral neuropathy, vestibular disorders.
    • Musculoskeletal: Osteoarthritis (especially in hips/knees), foot problems (e.g., bunions, ulcers), frailty.
    • Medications (Polypharmacy): The risk increases with the number of medications. Key culprits include: Psychoactives, Antihypertensives, and drugs with Anticholinergic effects.
    • Other: Acute illness (UTI, pneumonia), depression, fear of falling, alcohol use.
  • Extrinsic (Environmental) Factors:
    • Poor lighting, loose rugs or carpets, slippery floors, clutter, unsafe stairs, and lack of handrails.

Investigations

The goal is to identify reversible or treatable contributing factors.

Laboratory (Bloods)

  • Full Blood Count (FBC): To rule out anaemia.
  • Urea, Electrolytes, Creatinine (U&E/Cr): To assess for dehydration and renal impairment.
  • Blood Glucose Level (BGL): To screen for hypo- or hyperglycaemia.
  • Thyroid Stimulating Hormone (TSH): Hypo- or hyperthyroidism can contribute.
  • Vitamin D: Deficiency is common and associated with muscle weakness.

Other

  • Electrocardiogram (ECG): Essential to look for arrhythmias, heart block, or evidence of ischaemia.
  • Urinalysis: To screen for a urinary tract infection.
  • Imaging: Indicated by specific clinical findings (e.g., CT Brain for head injury, X-rays for suspected fractures).

Management Principles (Australian Guidelines Focus)

Management is multidisciplinary and multifactorial.

  1. Treat Injuries & Acute Illness: Address any fractures, wounds, or underlying infections first.
  2. Multifactorial Risk Assessment: Every older person presenting with a fall should have this assessment.
  3. Key Interventions:
    • Strength and Balance Training: The single most effective intervention.
    • Medication Review (Deprescribing): A crucial and examinable step.
    • Home Environment Assessment & Modification: Usually performed by an Occupational Therapist (OT).
    • Management of Postural Hypotension: Patient education, hydration, medication adjustment.
    • Vision Assessment & Optimisation.
    • Footwear & Podiatry Review.
    • Vitamin D Supplementation.

6. Table: Presentation Variations – Fall vs. Syncope vs. Seizure +

Feature Multifactorial Fall Cardiac Syncope Seizure (Tonic-Clonic)
Onset Often with a prodrome of unsteadiness or dizziness, or during a risky activity (“tripped over rug”). Abrupt, often without warning. May have brief prodrome of palpitations or chest pain. Can have an aura (unusual smell, déjà vu) or be completely abrupt.
Provoking Factors Postural change, turning, poor lighting, rushing. Exertion (if aortic stenosis), can occur even when sitting/lying. Often unprovoked. Can be triggered by sleep deprivation or flashing lights.
During Event Conscious throughout (unless head strike causes secondary LOC). May try to break the fall. Clear loss of consciousness (LOC). Limbs are typically limp/flaccid. Brief myoclonic jerks can occur. LOC with classic tonic (stiffening) then clonic (jerking) movements. Tongue biting and incontinence are common.
Post-Event Immediate awareness unless injured. May be unable to get up due to weakness or injury (“long lie”). Rapid and complete recovery of consciousness within 1-2 minutes. Minimal confusion. Prolonged post-ictal confusion, drowsiness, headache, and muscle aches. Can last for minutes to hours.

7. Table: Relevant Pharmacological Management (High-Risk Drugs) +

Drug Class Example(s) Common Indication Risk in Falls & Management Action
Benzodiazepines Temazepam, Diazepam Insomnia, Anxiety Risk: Sedation, cognitive impairment, ataxia. Action: A key target for deprescribing. Advise gradual withdrawal. Promote non-pharmacological sleep hygiene.
Antihypertensives Perindopril, Amlodipine Hypertension Risk: Can cause or worsen orthostatic hypotension. Action: Review BP targets. Check lying/standing BP. Consider dose reduction.
Diuretics Frusemide Heart Failure, Oedema Risk: Volume depletion, orthostatic hypotension, electrolyte disturbances. Action: Review indication and dose. Monitor electrolytes.
Anticholinergics Oxybutynin, Amitriptyline Urinary incontinence, Neuropathic pain Risk: Confusion, delirium, sedation, dizziness. Action: High risk. Seek non-anticholinergic alternatives.

8. Common Exam Presentations & Scenarios +

Common Scenarios

  • Counselling Station: “You have assessed Mrs. Smith, an 80-year-old who fell. Her daughter is with her. Explain the likely reasons for her fall and your management plan.”
  • History Station: “Take a focused history from Mr. Jones, a 78-year-old man who was found on the floor by his neighbour.”
  • Skills Station: “Demonstrate to the examiner how you would assess for postural hypotension in this patient.”
  • Management Station: “You are the GP. Here are the notes for a patient who has had two falls. Formulate a comprehensive management plan.”

9. Critical Errors & Misconceptions (AMC Exam Context) +

Critical Errors

  • Error: Focusing on a single cause (“You fell because you drank some wine”).
    Consequence: Demonstrates a simplistic and unsafe approach. Fails the ‘Clinical Acumen’ domain.
  • Error: Failing to ask for or perform a lying and standing blood pressure test.
    Consequence: Misses a common, critical, and modifiable risk factor. A significant ‘Patient Safety’ failure.
  • Error: Neglecting to conduct a thorough medication review.
    Consequence: Fails to identify iatrogenic harm and a key examinable point.
  • Error: Forgetting to ask about the “long lie”.
    Consequence: Misses potential complications like rhabdomyolysis and dehydration.
  • Error: Dismissing the fall as a simple “trip” without exploring intrinsic factors.
    Consequence: Fails to prevent future, potentially more serious, falls.

10. Practical Insights & Red Flags Summary +

Red Flags Warranting Urgent Action/Admission

  • Fall with new focal neurological signs (suspect stroke).
  • Fall with chest pain or significant palpitations (suspect cardiac cause).
  • Fall with definite loss of consciousness (needs syncope workup).
  • Head injury while on anticoagulants (low threshold for CT head).
  • Inability to get up (a “long lie” >1 hour).
  • Suspected major fracture (e.g., hip fracture).

Practical Insights

  • Always check lying and standing BP.
  • Always review the medication list.
  • The explanation strategy from the transcript is excellent: “Mrs. Smith, it seems your fall was likely caused by a combination of things working together. These include your blood pressure medication, the sleeping tablet, and some age-related changes in balance. Can I explain each of these to you?”
  • Management is a team sport: involve the Physiotherapist, Occupational Therapist, and Pharmacist.

11. Key Learning Points +

  • Falls in older adults are common, dangerous, and almost always multifactorial.
  • A systematic assessment (history, examination, targeted investigations) is required to identify all contributing risk factors.
  • The lying and standing blood pressure measurement is a mandatory part of the falls assessment.
  • Medication review and deprescribing, especially of psychoactive drugs, is a cornerstone of management.
  • Effective management requires a multidisciplinary team approach focused on interventions like strength/balance exercise and home safety.
  • Communication is key: explain the multifactorial nature clearly and develop a shared management plan.

12. Additional Case-Specific Exam Tips (AMC Clinical) +

  • Verbalise Your Approach: When requesting examination findings, be systematic. “I would first like the vital signs, including temperature, heart rate, respiratory rate, oxygen saturation, and importantly, a lying and standing blood pressure.”
  • Think Out Loud: When formulating your diagnosis, it’s okay to say, “Based on the history of dizziness on standing and the medications, postural hypotension is a major factor. However, the slow reaction time from the temazepam and the poor lighting in the hallway also likely contributed. Therefore, my leading diagnosis is a multifactorial fall.”
  • Be Patient-Centred: Frame the management plan around the patient’s goals. “Our main goal is to work together to reduce your risk of another fall so you can stay confident and independent at home. To do this, I suggest we…”
  • Close the Loop: Always end by summarising the plan and asking, “Does that make sense? What questions do you have for me?” This demonstrates good communication and patient-centred care.

13. References +

Layer 1