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What is Kussmaul's sign is seen in all of the following, except: and explain in detail?
Kussmaul's sign is defined by either a rise or a lack of fall of the JVP with inspiration and is classically associated with constrictive pericarditis. It is also seen in patients with restrictive cardiomyopathy, massive pulmonary embolism, right ventricular infarction, and advanced left ventricular systolic hea failure. Ref: Harrison's Internal Medicine, 18th Edition, Pages 1823, 1972-74