Cardiovascular — Feline

Cold, pulseless, painful pelvic limbs indicate distal aortic thromboembolism, which in cats almost always arises from left atrial thrombi secondary to cardiomyopathy, most commonly HCM. Neurologic causes do not abolish pulses or cool the limbs. Melarsomine has a narrow margin of safety and high fatality risk in cats, so adulticide therapy is not recommended; cats are managed supportively while infections are often self-limiting. Surgical extraction is reserved for caval syndrome.