Geriatrics Flashcards
senior pets represent what percent of patients?
30-40%
>will likely increase over time
what is gerontology?
-Scientific study of aging in all aspects
-Important human discipline
-Emerging in vet med
what is the aging process?
Sum of an animal’s anatomic, metabolic, and behavioural changes as it grows older
4 levels at which we can view the aging process
Cellular
Organ
Organism
Population
Variation of aging between and within species is dependent on
cell senescence
damage theories of the aging process
Cellular wear and tear
>free radical oxidative damage, protein glycosylation, accumulation of metabolic byproducts, auto-immune, etc
genetic theories of the aging process
Intrinsic programming (apoptosis)
Increased susceptibility to cellular damage
general considerations for geriatric medicine
Increased risk for dehydration
Blunted fevers and inflammatory responses
Reduced drug metabolism
Spectrum of client attitudes
Treat on out-patient basis if possible
canine geriatric diseases, common
Heart failure
>mitral valve insufficiency, cardiomyopathy
Neoplasia (may cause any sign)
Chronic kidney disease
Hyperadrenocorticism
Diabetes mellitus
>these 3 give PU/PD
Chronic bronchitis (cough, DDx CHF)
Other common disorders still occur
common feline geriatric diseases
Chronic kidney disease
Neoplasia
Hyperthyroidism (HT)
Diabetes mellitus (DM)
Others: FIP, FIV
Other common diseases still occur
common complaint in feline geriatrics
PU/PD is a frequent complaint
>Consider DM, CKD, HT
Most sick cats are inappetent
only common geriatric feline diseases which may cause polyphagia
DM and HT are the only common diseases which may cause polyphagia
common geriatric disorders for both cats and dogs
Dental problems
Degenerative joint disease
>Especially in medium and large dogs
>Feline osteoarthritis is especially challenging for owners/vets to identify
Incontinence/inappropriate elimination
>Senility, neuromuscular, bladder, prostate, primary sphincter incompetence, PU/PD
Cognitive dysfunction syndrome (CDS)
what feline geriatric condition can be hard to identify?
Feline osteoarthritis is especially challenging for owners/vets to identify
what is it important to exclude in a case of cognitive dysfunction for geriatrics?
medical causes
What is DISHAA
cognitive dysfunction syndrome
- disorientation
- social interactions
- sleep/wake cycles
- housesoiling, learning, and memory
- activity
-anxiety
what is sarcopenia syndrome
-“Syndrome characterized by progressive and generalized loss of skeletal muscle mass and strength with a risk of adverse clinical outcomes, such as physical disability, poor quality of life, and death”
-Muscle loss not due to a specific disease
-Decreased anabolism
what is frailty syndrome?
“Multi-system impairment associated with increased vulnerability to stressors and increased risk of adverse health outcomes”
Humans: ≥ 3 of 5 phenotype criteria
-Weakness
-Slowness
-Low level physical activity
-Self-reported exhaustion
-Unintentional weight loss
what is chronic kidney disease? what is the pathogenesis?
Renal mass decreases > surviving nephrons cannot autoregulate and systemic arterial pressure is transmitted to the glomerulus > glomerular hypertension and hyperfiltration
-Tublulointerstitial fibrosis
-Ascending loop of Henle has reduced sodium reabsorption with age
>Sodium loss is increased
>Medullary hypotonicity
-Tubular cells are frail in the aged kidney
>Progression to acute tubular necrosis and AKI can occur more easily
common urinary issues in geriatrics
-UTI can be common in the geriatric population
-Incidence of bacteruria has been shown to increase with age
>Changes in anatomy (vaginal and urethral atrophy)
>Changes to composition of urine
>Changes to frequency or amount of voiding
common neurologic changes in geriatric dogs
Decrease in frontal lobe volume, increase in ventricular size (dogs)
common neurologic change in geriatric cats
Neuronal loss, cerebral atrophy, increase in ventricular size (cats)
common neurologic changes in both cats and dogs
-Microhemorrhages/infarcts in periventricular vessels
-Increase in reactive oxygen species
common geriatric conditions of the liver in dogs and cats
-Liver size and weight decrease with age
-Decline in regeneration rate and detoxification
common geriatric changes of cat and dog cardiac system
-Reduced response to Beta-adrenergic stimulation
-Increase in myocardial and vascular stiffness
common geriatric disorders of cat and dog resp system
-Decline in muscle strength
-Calcification of ribcage cartilage
>Reduced chest wall compliance
-Decreased ability to clear particles from airways
-Respiratory resistance increases and lung elasticity declines
-Pulmonary immune responses are exaggerated with age