Myocardial Disease III

Cardiovascular System


{"ops":[{"insert":"A 30-year-old man comes to the physician because he feels weak and faint during heavy exercise. This occurred three times during the past month. He has no history of serious illness and takes no medications. There is a family history of sudden death. His pulse is 100\/min and regular, respirations are 20\/min, and blood pressure is 130\/75 mm Hg. Cardiac examination shows a systolic thrill and a systolic ejection murmur heard best over the lower left sternal border. The murmur is louder with the Valsalva maneuver. Which of the following is the most likely diagnosis?"},{"insert":"\n"}]}

Background

{"ops":[{"insert":"\n"}]}

(A)

Aortic stenosis
{"ops":[{"insert":"\n"}]}

(B)

Pulmonary stenosis
{"ops":[{"insert":"\n"}]}

(C)

Obstructive hypertrophic cardiomyopathy
{"ops":[{"insert":"\n"}]}

(D)

Mitral regurgitation
{"ops":[{"insert":"\n"}]}

(E)

Tricuspid regurgitation
{"ops":[{"insert":"\n"}]}

References

{"ops":[{"insert":"MARIAN AJ, BRAUNWALD E. Hypertrophic Cardiomyopathy: Genetics, Pathogenesis, Clinical Manifestations, Diagnosis, and Therapy. Circ Res [online] 2017 Sep 15, 121(7):749-770 [viewed 20 July 2019] Available from: http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/28912181"},{"insert":"\n","attributes":{"list":"ordered"}},{"insert":"HOUSTON BA, STEVENS GR. Hypertrophic cardiomyopathy: a review. Clin Med Insights Cardiol [online] 2014, 8(Suppl 1):53-65 [viewed 20 July 2019] Available from: http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/25657602"},{"insert":"\n","attributes":{"list":"ordered"}}]}

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