H - Falls Lecture Flashcards
30% of over 65s fall eah year
What percent of over 80s fall each year?
50% of over 80s fall each year
75 year old lady falls alone at home and unable to summon help. Only found 48 hours later…….
What are some of the potenital problems this lady could face due to lying for so long?
Dehydration
Rhabdomyolysis
Hypothermia
Pressure sores
VTE - venous thromboembolism
What type of drugs can cause rhabdomyolysis? usually in older frail adults
Statins can cause this
Do women or men more commonly fall?
What to do with muscle can this be down to?
Women fall more commonly men
Women have a smaller muscle bulk than men usually and therefore can be weaker when sarcopenia begins
Sarcopenia contributes towards the risk of falling
What is sarcopenia?
The eyes also change in older people, what happens to the eyes?
Sarcopenia is the loss of muscle mass and function which increases the risk of falling
IN the elderly, the eye lens hardens - known as presbyopia where the lens hardens and therefore light focuses behind the retina when looking at near objects - old age long sightedness
loss of consciousness and muscle strength characterized by a fast onset, short duration, and spontaneous recovery.
What is this? and what causes it?
This is syncope and it usually occurs due to a temporary reduction in blood supply to the brain
What is another name for orthostatic hypotension?
This is also known as postural hypotension
When someone stands up, what is the normal pathway to return blood to the heart?
Blood pulls around the legs, this reduces the venous return to the heart which decreases the preload into the heart , decreasing CO and BP
The baroreceptors of the aortic arch and carotid sinus detect the decrease in blood pressure and increase sympathetic supply to heart to increased contraction and CO
What nerve innervates the carotid sinus and the aortic arch baroreceptors?
Name the nuclei of these nerves
Carotid sinus innervated by CN IX
Solitary nucleus, superior salivatory nucleus, spinal nucleus, nucleus ambiguus
Aortic arch innervated by CN X - vagus
Dorsal motor nucleus, spinal trigeminal nucleus, nucleus ambiguus, solitary nucleus
What are the values of SBP and DBP for diagnosing postural hypotension?
Fall in systolic blood pressure greater than 20
or
Fall in diastolic blood pressure grater than 10
After 3 minutes of standing
If you are cognitively impaired you are twice as likely to fall
What features does cognitive impairment impair?
impairs judgement, visual-spatial awareness, orientation
What is a myelopathy?
This is where there is spinal cor compression due to eg stenosis, a disc herniation, degenerative disease
What test is a patient positive for in cervical myelopathy?
What type of gait are they said to have?
Rhomberg’s test positive
Said to have a high stepping gait due to lack of sensation in the lower limbs
What are the three main features of parkinsons?
What type of gait do they have?
Tremor (pill rolling) , rigidity, bradykinesia
They have a shuffling gait
People with BPPV have an increased risk of falls due to vertigo and dizziness
What test is used to confirm and treat?
Diagnosed with Hallpike Test
Treated with Epley manoeuvre