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October 6, 1928

The Sensory and Motor Disorders of the Heart: Their Nature and Treatment.

JAMA. 1928;91(14):1057. doi:10.1001/jama.1928.02700140059031

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The late Dr. Alexander Blackhall-Morison has in this edition given a clear exposition of sensory and motor disturbances of the heart on a neurogenic basis. In the first part the embryology and anatomy of the heart are discussed at some length, with especial reference to innervation of the cardiac muscle cardiac blood vessels. The second part, on sensory disorders of the heart, is excellent: a most convincing dissertation on angina pectoris and cardiac and aortic pain as being due to nerve irritation rather than to muscular spasm. The third part, on the motor disorders of the heart, disorders of rhythm and rate, is not quite as clear as the discussion of the sensory disorders, but nevertheless makes it appear that the generally accepted myogenic theory may not be the final answer to this interesting and perplexing problem. "Some may not agree with his conclusions as to the nature of the

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