Obese Animals: Complications of Anesthesia
Obesity is described as an accumulation of excess adipose tissue as a result of a sustained positive energy balance. The high prevalence of overweight and obese companion animals may skew the perception of what is considered ideal body composition. Body Condition Score (BCS) is used most commonly in companion animals to assess body composition. In obese animals, clinical examination may be hindered, the chest may be more difficult to auscultate and the abdomen more difficult to palpate. Veins and arteries may be more difficult to identify when large amounts of subcutaneous fat are present. Pulses may be more difficult to palpate. Subcutaneous fat may make venous and arterial access challenging and correctly securing appropriately sized cuffs for noninvasive blood pressure measurement can be difficult. Increased subcutaneous fat may obscure identification of landmarks for regional anesthesia. Increased subcutaneous fat may result in poor drug delivery after inte...