You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Hyperdynamic circulation is seen in all except: and explain in detail?
Ans. c. Cor Pulmonale (Ref: Harrison 19/e p1501, Harrison 18/e p1901)Hyperdynamic circulation is seen in anemia, beriberi & AV fistula, but not in Cor pulmonale."Conditions that lead to a high cardiac output (e.g.. arteriovenous fistula, anemia) are seldom responsible for the development of HF in a normal heart: however, in the presence of underlying structural heart disease, these conditions can lead to overt HF. "--Harrison 19/e p1501Etiologies of Heart FailureDepressed Ejection Fraction (< 40%)Preserved Ejection Fraction (> 40-50%)High-Output States* Coronary artery disease:- Myocardial infarction- Myocardial ischemia* Chronic pressure overload:- Hypertension- Obstructive valvular disease* Chronic volume overload:- Regurgitant valvular disease- Intracardiac (left-to-right) shunting- Extracardiac shuntingQ* Chronic lung disease:- Cor pulmonaleQ- Pulmonary vascular disorders* Non-ischemic dilated cardiomyopathy:- Familial/genetic disorders- Infiltrative disorders* Toxic/drug-induced damage:- Metabolic disorder- Viral* Chagas' disease* Disorders of rate & rhythm:- Chronic bradyarrhythmias- Chronic tachyarrhythmias* Pathologic hypertrophy:- Primary (hypertrophic cardiomyopathies)- Secondary (hypertension)* Aging* Restrictive cardiomyopathy:- Infiltrative disorders (amyloidosis, sarcoidosis)- Storage diseases (hemo-chromatosis)* Fibrosis* Endomyocardial disorders* Metabolic disorders:- ThyrotoxicosisQ* Nutritional disorders (beriberi)0* Excessive blood flow requirements:- Systemic AV shunting0- Chronic anemia0