Geriatrics Flashcards
What is benign paroxysmal positional vertigo?
Sudden episodic attacks of vertigo induced by changes in head position
Describe the epidemiology of benign paroxysmal positional vertigo
Leading cause of vertigo
Increased incidence in the elderly
Increased risk in those with gallstones(calcium deposits)
Describe the aetiology of benign paroxysmal positional vertigo
Detachment of otoliths from the utricle of the inner ear
Detached particles migrate into semicircular canals where they stimulate hair cells and lead to vertigo symptoms
Acummulation of cholelithiasis in semi circular cells of inner earrr
Describe the presentation of patient with benign paroxysmal positional vertigo
Vertigo triggered by changes in head position (e.g. rolling in bed, looking up)
Recurrent episodes lasting aroung 30secs-1 minute
May be associated with nausea&vomiting
No auditory symptoms
How is benign paroxysmal positional vertigo diagnosed?
Positive Dix-Hallpike maneouvre
Lie down with one ear pointed to ground-> check for nystagmus
Name some differentials for benign paroxysmal positional vertigo
Menieres disease
Vestibular neuritis
Labyrinthitis
How is benign paroxysmal positional vertigo managed?
Epley maneuver-works in around 80%(aims to detach otoliths out of semicircular canal and back to utricle)
Usually resolves spontaneously after a few weeks/months
Can teach patients at home exercises: ‘vestibular rehab’: e.g Brandt-Daroff exercisesBetahistine not very useful
Describe the prognosis for benign paroxysmal positional vertigo
1/2 will have recurrence of sx 3-5 years after diagnosis
What group of patients are more at risk of developing pressure ulcers?
Patients who are unable to move parts of their body due to illness, paralysis or advancing age
Where do pressure ulcers typicallly develop?
Over bony prminences like the sacrum or heel
Name some risk factors for developing pressure ulcers?
Malnourishment
Incontinence; urinary and faecal
Lack of mobility
Pain-; leads to decreased mobility
What scoring system is used to grade pressure ulcers?
Waterlow score
How are pressure ulcers manageed?
Moist wound environemnt: hydrocolloid dressings and hydrogels(no soap)
Wound swabs not routinely done-> systemic abx use decided on clinical basis(surrounding cellulitis etc)
Consider referral to tissue viability nurses
Surgical debriedement for selected wounds
Whata re lower urinary tract sympotms?
Group of sx that occur as a result of abnormal storage, voiding or post micturition function of bladder, prostate or urethra
Describe the aetiology of LUTS
Neurological
Bladder
Prostate
Urethral
Other mass effect
How can LUTS be classified?
Voiding
Storage
Post-micturition
Name somee voiding symptoms LUTS
Hesitancy
Straining
Terminal dribbling
Incomplete emptying
Weak/intermittent urinary stream
Name some storage sx LUTS
Urgency
Frequency
Nocturia
Urinary incontinence
Name some post-micturition sx LUTS
Post-micturition dribbling
Sensation of incomplete emptying
Name some differentials for LUTS
Bladder outlet obstruction
Overactive bladder syndrome
Urethral stricture
Prostatitis
Bladder cancer
What investigations might be done in a patient presenting with LUTS?
Urinalysis: exclude infection and check for haematuria
DRE: size and consistency of prostate
PSA test may be considered
Bladder diary
Urodynamic studies
How are LUTS managed?
Treat undelrying cause
Depends on type of LUTS
How aare voiding LUTS managed?
Conservatrive: pelvic floor/bladder trianing
BPH-5-alpha reductase inhibitor-finasteride
Alpha blocker if severe-doxazosin
How are voiding and storage LUTS managed?
Alpha blocker-doxazosin
Add anticholinergic-oxybutinin
How are overactive bladder symptoms managed?
Conservative: fluid management
Antimuscarininc if persistent-oxybutinin, tolteridone
How is nocturia managed?
Manage fluid intake at night
Furosemide 40mg in late afternoon
Desmopressin
What are the different types of urinary incontinence?
Stress; leaking small amounts when laughing/coughing
Urge/overactive; detrusor overactivity
Mixed: urge/stress
Overflow; bladder outlet obstruction
Functional
What causes overflow incontinence
Bladder outlet obstruction(e.g. prostate enlargement)
Name some reversible causes of urinary incontinence
DIAPPERS
Delirium
Infection
Atrophic vaginitis/urethritis
Pharmaceutical(medications)
Psychiatric disorders
Endocrine disorders(diabetes)
Restricted mobility
Stool impaction
What investigations migh tbe done to look for causes of urinary incontinence?
Physical exam: organ prolapse and ability to contract pelvic floor muscles
Bladder diary: number and types of incontinenceUrinalysis: rule out infection
Cystometry: measures bladder pressure while voiding(not recommended where clear diagnosis)
Cystogram: Contrast in bladder and imaging(fistula)
What is stress incontinence?
Leaking of urine when abdominal pressure is high; increases pressure on bladder
Name some risk factors for stress incontinence
Childbirth(especially vaginal); injury to pelvic floor muscles and connective tissue
Hysterectomy
Name some triggers for stress incontinence
Coughing
Laughing
Sneezing
Exercise
Anything that increases abdominal pressure
Describe the management of stress icontinence
Conservative: avoid fizzy, caffeinated drinks, pelvic floor exercises
Medical: Duloxetine
Surgical: GS: mid urethral slings(minimally invasive, done as outpatients)
Name some risk factors for urge incontinence
Recurrent UTI
High BMI
Increasing age
Smoking
Caffeine
Describe the management of urge incontinence
Conservative: Bladder training, avoid alcoholic/caffeinted/sugary drinks
Medical: anticholinergics: oxybutinin, tolterodine, fesoterodine
Surgical: bladder instillation, sacral neuromodulation
Name a side effect of tolterodine
Increased risk of delirium
Name the causes of overflow incontinence
Underactivity of detrusor muscle(e.g from nerve damage) or if urinary outlet pressures are too high(constipation, prostatism)
What is functional incontinence?
Urge to pass urine but can’t access facilities so experience incontinence
Name some causes/risk factors for functional incontinence
Sedating meds
Alcohol
Dementias
What is quamous cell carcinoma?
Locally invasive malignant tumour of epidermal keratinocytes
With invasion of basement membrane as it is a cancer
Name some risk factors for SCC
Excessive exposure to sunlight/UV light
Actinic keratosis and Bowen’s disease; predisposing lesions
Genetics: xeroderma pigmentosum Immunosuppresion
Smoking
Old age
Male
How might patients with SCC present?
Keratinised, scaly irregular nodules
Might be ulcerating or have everted edgesOften in sun exposed areas
Usually slow growing(months)
Pain, tenderness, bleeding
Complicaotins for local invasion-distant metastases is rare
How is SCC diagnosed?
Excision biopsy with 4mm margin
Might require 6mm margin if high risk
Name some features of a possible SCC that make it more high risk
> 2cm diameter
Located on ear, lip, hands, feet or genitals
Elderly or immunosuppressed
Histology: poor differentiation, blood/nerve involvement, SC tissue invasion
How is SCC treated?
Surgical excision
Radiotherapy may be needed
Lifestyle to prevent further lesions; sunscreen
What is the prognosis for SCC
5 year survival of 99% if detected early
Name some poor prognostic factors for SCC
Poorly differentiated&>;2cm diameter&>4mm deep
Immunosuppression
How can constipation be classified?
Primary: no organic cause: dysregulation of function of colon/anorectal muscles
Secondary: diet, medications, metabolic, endocrine, neuro, obstruction
What criteria is used for classifying constipation?
Rome 6 criteria
Describe the Rome 6 criteria for constipation
<3 bowel movements/week
Hard stool in >25% of movements
Tenesmus in >25% of movements
Increased straining in >25% of movements
Need for manual evacuation
Any or all of them can constitute a diagnosis of constipation
Name some risk factors for constipation
Increasing age
Inactivity
Low calorie diet
Low fibre diet
Certain medicationsFemale
Name some possible causes of constipation
Inadequate fibre or fluid intake
Behavioural: inactivity of avoidance of defaecation
Electrolyte distrubances like hypercalcemia
Drugs: opiates, CCBs, antipsychotics
Neurological: spinal cord lesions, Parkinson’s, diabetic neuropathy
Endocrine-; hypothyroidism
Colon disease :strictures/cancer/obstruction
Anal disease- fissures
Name some red flag associated features of constipation
ALARMS
Anaemia
Lost weight
Anorexia
Recent onset
Melaena/bleeding
Swallowing difficulties
What investigations might be done in a patient with constipation?
Constipation/diarrhoea+ weight loss+ >60yrs-> 2wwk wait urgent CT/US to rule out pancreatic cancer
Often no need for further ix
PR examStool sample: mcs, ova, cysts, parasites
FIT testing
Faecal calprotectin
Bloods: anaemia, hypercalcaemia, hypothyroidism
Barium enema if suspicion of impaction/rectal mass
Colonoscopy-> lower GI malgnancy
Describe the management of constipation
Conservative: dietary imrpovements and increase exercise
Laxatives
What are the different types of laxatives
Bulking agents
Stool softeners
Stimulants
Osmotic laxatives
Phosphate enemas
Give an example of a bulking agent
Ipsaghula husk
How do bulking agents work?
Increase faecal bulk and peristalsis
When might bulking agents be contraindicated?
Dysphagia
GI obstruction
Faecal impaction
Name a side effect of bulking agents
Cramps