Veterinarian training courses library : Dog / Geriatric medicine

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  • Video time : 21 min + MCQ
    Geriatric medicine Anesthesiology and analgesia
    Teaching goals
    • Respiratory and Cardiovascular Changes in Geriatric Patients:
      Geriatric patients experience decreased lung capacity due to increased functional residual capacity (FRC) and small airway closure. This is coupled with muscle atrophy and reduced reflexes, making intubation necessary. Cardiovascular changes include reduced cardiac reserve due to decreased maximum heart rate and valvular lesions, which reduce cardiac output and increase myocardial workload.
    • Decreased Renal and Digestive Function:
      Renal function diminishes with age, reducing the ability to concentrate urine and making fluid balance critical.Lower esophageal sphincter tone decreases, and gastric pH becomes lower, making older patients more prone to reflux and esophagitis.
    • Altered Drug Metabolism and Clearance:
      Geriatric patients show a reduction in drug clearance and protein binding, leading to potentially higher effective drug concentrations. Special care is needed to avoid drug overdose or prolonged drug effects.
    • Pre-Anesthetic and Anesthetic Considerations:
      Pre-anesthetic preparation should include securing venous access early, minimizing stress, and using analgesia. Induction with propofol and intubation, followed by inhalant or total intravenous anesthesia (TIVA), is recommended.
    • Post-Anesthetic Care:
      Recovery requires close monitoring until airway reflexes return. Supplemental oxygen, analgesia, fluid therapy, and temperature management are essential for a safe recovery.