Comprehensive Geriatric Veterinary Care and Management

Fundamentals of Veterinary Geriatrics and Aging

• Geriatrics: The branch of medicine and study dealing with health, problems, and diseases in later life.

• Senescence: The condition or biological process of gradual physical deterioration with age.

• The Aging Process: The progressive decline in functional reserves and physiological strength, accompanied by systemic body changes that elevate the likelihood of disease development.

• Hospice Care: A dedicated facility or program designed to provide a supportive and caring environment for terminally ill patients, prioritizing comfort and life quality during end-of-life phases.

• Palliative Care: Specialized medical care targeted at individuals facing serious illnesses, focusing on symptom relief and optimizing quality of life for both the patient and family.

• Preventive Care: Proactive healthcare management aimed at early detection and risk mitigation to extend healthy lifespan.

Life Stages and Aging Classifications

• Five Life Stages of Canine and Feline Patients:

  • Pediatric: From birth up to $6\,\text{months}$ of age.

  • Young Adult:

  • Canines: $6\,\text{months}$ to $2\text{--}5\,\text{years}$.

  • Felines: $6\,\text{months}$ to $4\,\text{years}$.

  • Mature Adult:

  • Canines: $2\text{--}5\,\text{years}$ through $9\,\text{years}$.

  • Felines: $4\,\text{years}$ to $12\,\text{years}$.

  • Senior Citizens: The phase immediately following mature adulthood.

  • Geriatric: The final stage characterized by advanced age and progressive functional decline.

• Species and Size-Based Age Thresholds:

  • Feline Thresholds:

  • Senior: $9\,\text{years}$.

  • Geriatric: $13\,\text{years}$.

  • Canine Thresholds (Small, Medium, Large):

  • Senior: $7\,\text{years}$.

  • Geriatric (Small to Medium, $0\text{--}50\,\text{lbs}$): $11\,\text{years}$.

  • Geriatric (Large, $51\text{--}120\,\text{lbs}$): $9\,\text{years}$.

  • Giant Breed Canine Thresholds ($>120\,\text{lbs}$):

  • Senior: $5\,\text{years}$.

  • Geriatric: $7\,\text{years}$.

• Population-Level Aging Categorization in Canines:

  • Small Dogs: Older than $12\,\text{years}$.

  • Medium Dogs: Older than $10\,\text{years}$.

  • Large Dogs: Older than $8\,\text{years}$.

• Individual Geriatric Determination:

  • Onset depends on individual genetic factors and overall breed size.

  • Clinical judgment balances health status and functional capacity over chronological age alone.

  • Marked by progressive decline across physical condition, organ function, sensory acuity, mental function, and immune responsiveness.

• Canine Equivalent Human Age Reference Table:

  • $1\,\text{Pet Year}$: Equivalent to human age $10$ to $15$.

  • $2\,\text{Pet Years}$: Equivalent to human age $24$ to $28$.

  • $3\,\text{Pet Years}$: Equivalent to human age $28\text{--}32$ (Small/Med) up to $34\text{--}39$ (Large/Giant).

  • $5\,\text{Pet Years}$: Equivalent to human age $36$ (Small) up to $49$ (Giant).

  • $7\,\text{Pet Years}$: Senior entry point across most sizes ($44\text{--}79\,\text{human years}$ equivalent).

  • $10\,\text{Pet Years}$: Equivalent to human age $56$ (Small) up to $111$ (Giant).

  • $15\,\text{Pet Years}$: Equivalent to human age $76$ (Small) to $89$ (Large).

  • $20\,\text{Pet Years}$: Equivalent to human age $96$.

Canine Geriatric Syndrome and Premises of Care

• Canine Geriatric Syndrome Framework:

  • An integrative veterinary geroscience model encompassing:

  • Clinical disease

  • Physical changes

  • Functional changes

  • Behavioral changes

  • Frailty

  • Metabolic changes

  • Quality of life and caregiver burden

• Core Premises of Geriatric Care:

  • Premise 1: Fundamental biological differences exist in specific disease expressions, behavioral traits, and nutritional demands of older animals.

  • Premise 2: Systematic prevention, early detection, and timely medical intervention significantly improve lifespan and overall quality of life.

Comprehensive Senior Care and Diagnostic Screening

• Integration Strategies:

  • Client/owner education on age-related changes.

  • Targeted disease prevention plans.

  • Early-stage detection of emergent medical or behavioral issues.

• Senior Protocol Protocols (Initiating at Age $7\,\text{years}$):

  • Semi-annual (twice-a-year) comprehensive clinical examinations.

  • Routine diagnostic baseline screening:

  • Complete Blood Count (CBC)

  • Blood Chemistry Profile (CHEM)

  • Total Thyroxine Level (T4)

  • Complete Urinalysis (UA)

  • Systemic Blood Pressure Monitoring

  • Diagnostic Radiography

Common Organ System Diseases in Geriatric Patients

• Primary Geriatric Conditions Overview:

  • Oral health abnormalities

  • Vision loss and hearing loss

  • Cardiac disease

  • Respiratory disease

  • Neoplasia

  • Chronic renal disease

  • Urinary and fecal incontinence

  • Dermatological conditions

  • Neurological abnormalities

  • Orthopedic disease

  • Metabolic and endocrine disorders

• Oral Health:

  • Diagnostic indications: Halitosis, difficulty chewing, dropping food from the mouth, and excessive salivation.

  • Surgical and periodontal interventions required for: Periodontal inflammation, severe tartar accumulation, dental calculus, and fractured teeth.

• Cardiac Disease:

  • Common presenting complaints: Fatigue, exercise intolerance, acute collapse, and persistent coughing.

• Respiratory Disease:

  • Pathologies include collapsing trachea.

  • Common presenting complaints: Coughing, reduced exercise tolerance, increased breathing rate, and exaggerated respiratory effort.

• Neoplasia:

  • One of the leading causes of morbidity and mortality in aging pets.

  • Early detection directly correlates with extended lifespan and maximized quality of life.

• Chronic Renal Disease:

  • Clinical signs: Polydipsia (increased water intake), polyuria (increased urine output), altered appetite, and lethargic demeanor.

  • Management strategies: Early diagnostic identification, therapeutic renal diets, and target pharmacological agents to slow functional decline.

• Urinary and Fecal Incontinence:

  • Etiology: Degenerative neurological disorders and spinal cord lesions.

  • Pharmacological treatment: Phenylpropanolamine hydrochloride (FDA-approved as PROIN in $25\,\text{mg}$, $50\,\text{mg}$, and $75\,\text{mg}$ dosages).

  • Tends to happen more with female dogs due to lack of estrogen.

• Neurological Abnormalities:

  • Spinal cord pathologies: Incontinence, paresis, and full paralysis.

  • Brain pathologies: Inflammatory brain lesions and central nervous system neoplastic lesions.

• Orthopedic Disease:

  • Conditions: Osteoarthritis, Degenerative Joint Disease (DJD), and Hip Dysplasia.

  • Multimodal therapeutic options: Non-steroidal anti-inflammatory drugs (NSAIDs), targeted analgesics for pain control, physical therapy, and rehabilitation protocols.

Endocrine and Metabolic Disorders

• Hyperthyroidism:

  • Pathophysiology: Endocrine disorder marked by excessive production of thyroid hormones ($T_3$/$T_4$).

  • Clinical manifestations: Elevates metabolic rate, polyphagia (increased appetite) with concurrent weight loss, polydipsia/polyuria, unkempt coat (lack of grooming), cool-seeking behavior, vomiting, and severe cardiac complications.

  • Treatment: Radioactive iodine TX, methimazole, surgically remove thyroid gland.

• Hypothyroidism:

  • Endocrine deficiency leading to reduced metabolic performance and lethargy.

• Diabetes Mellitus:

  • Pathophysiology: Insufficient secretion of insulin or cellular insulin resistance (from pancreas), preventing glucose uptake into tissue cells.

  • Clinical manifestations: Polyuria, polydipsia, polyphagia with weight loss, and recurrent urinary tract infections.

  • Therapeutic management: Exogenous daily insulin injections administered by the caregiver.

• Hyperadrenocorticism (Cushing's Disease):

  • Pathophysiology: Excessive endogenous production or administration of glucocorticoids (cortisol).

  • Clinical manifestations: Excessive thirst, appetite, and urination; heightened susceptibility to systemic infections, particularly of the skin and urinary tract.

  • Therapeutic management: Target medical management of hormone production and concurrent treatment of secondary infections.

  • Bilateral symmetrical alopecia.

  • Lysodrin, veterol - used for tx

Geriatric Nutrition

• Comprehensive Nutritional Assessment Components:

  • Exhaustive medical history review.

  • Detailed physical examination.

  • Diagnostic laboratory values.

• Formulating Ideal Regimens:

  • Precise matching of caloric and nutritional requirements.

  • Tailoring nutrient profiles to accommodate co-existing medical and metabolic conditions.

Assistive Mobility Devices

• Support Slings:

  • Indications: Supports the hindquarters of animals retaining normal front-leg strength.

  • Application: Fits around the caudal aspect of the abdomen, directly in front of the hind limbs (e.g., Bottom's Up Leash or folded towels/blankets).

  • Guidelines: Intended for partial weight support during ambulation, not as a complete replacement for walking unless complete hind limb loss occurs.

• Mobility Carts: Cannot keep in cart all the time

  • Indications: Designed for patients with severe paresis or total paralysis of the hind limbs.

  • Operational mechanics: Patient's head and front chest rest through forward soft padding; hind legs rest in rear loops/openings.

  • Requirements: Demands normal mobility and strength in the thoracic limbs to direct movement.

  • Benefits: Custom sizing encourages active use of weak hind limbs while providing complete balance.

Nursing Care and Clinical Interventions

• Decubital Ulcer Management:

  • Pathophysiology: Pressure sores formed over bony prominences from prolonged recumbency.

  • Prevention: Reposition and encourage standing or walking at least every $4\text{--}6\,\text{hours}$; keep bedding dry and clean from waste; utilize specialized padding and cushions.

  • Treatment: Application of topical antibiotic ointments and protective bandaging.

• Subcutaneous Fluid Administration:

  • Indication: Supplemental hydration in chronic illness.

  • Administration techniques:

  • Syringe with butterfly catheter: Injection of volumes $<60\,\text{mL}$ via small-gauge needle.

  • Infusion bag with extension set: Provides continuous flow, though precision measuring is reduced.

  • Precautions: Carefully monitor to prevent fluid overload and cardiac embarrassment.

• Urinary Bladder Expression:

  • Methods: Performed with patient in standing or lateral recumbent position.

  • Technique: Place hands on both sides of the caudal abdomen, locate the firm fluid-filled structure, and apply manual pressure toward the pelvis until empty.

  • Complications & Precautions: Excessive manual force can cause bladder rupture. Complete emptying is essential to prevent cystitis. Perform periodic urine cultures.

• Urine Scalding Mitigation:

  • Pathophysiology: Involuntary urine leakage leads to hair matting, skin irritation, and painful chemical dermatitis.

  • Management: Immediate bathing, drying, and barrier application post-expression or voiding.

• Appetite Management:

  • Identify underlying causes: Systemic toxicities, orthopedic pain, or neurological depression.

  • Therapeutic intervention: Antiemetic therapy, adequate analgesia, and targeted pharmacological appetite stimulants.

• Enteral Feeding Tubes:

  • Clinical considerations: Indicated for functional alimentary tract abnormalities; not recommended strictly for end-stage life support.

  • Tube classifications:

  • Nasoesophageal (NE) tube: Short-term nutritional support.

  • Esophagostomy (E-tube): Medium to long-term support.

  • Gastrostomy (G-tube / PEG): Long-term or permanent support.

Hospice, Palliative Care, and Pain Management

• Role of Veterinary Technicians:

  • Provide home care instruction and caregiver support.

  • Educate owners on subtle and overt signs of pain.

  • Oversee multi-modal pain protocols.

• Analgesic Options:

  • Non-Steroidal Anti-Inflammatory Drugs (NSAIDs, e.g., EtoGesic / etodolac)

  • Corticosteroids

  • Opiates

  • Nutraceuticals

• Pain Medication Monitoring:

  • Perform serial blood testing to monitor organ systems for drug toxicity.

  • Weigh risk-versus-benefit profiles for long-term administration.

• Pain Assessment Indicators:

  • Subtle behavioral expressions: General malaise, anorexia, reduced social interaction, decreased physical activity.

  • Overt physiological and clinical signs: Tachycardia, tachypnea, pyrexia, organomegaly, non-weight-bearing lameness, abnormal eliminations posturing, and vocalization (yelping) upon palpation or joint manipulation.

End-of-Life Decisions and Euthanasia

• Ethical Standards: Veterinary professionals carry a strict ethical obligation to alleviate intractable suffering.

• Indicators of Advanced Health Decline:

  • Intractable, persistent anorexia.

  • Labored, altered respiratory rate or severe effort.

  • Unmanageable chronic pain despite maximal therapy.

  • Complete loss of interest in interacting with caregivers or environment.

• Clinical Support: Provide objective medical metrics and empathetic communication to guide owners through euthanasia timing.