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March 23, 1963

Circulation Time in the Aged

Author Affiliations

Missoula, Mont.

From the Department of Internal Medicine, Western Montana Clinic.

JAMA. 1963;183(12):1037-1038. doi:10.1001/jama.1963.63700120034017

MEASUREMENT of the circulation time is widely recommended in the evaluation of cardiac function. Its value lies in distinctive alterations which occur in congestive heart failure and other circulatory disturbances, such as thyrotoxic heart disease and anemia. The usefulness of the test is dependent on the availability of reliable standards of normal range.

Increasing circulation time with increasing age has been reported1, 2 and denied.3, 4 It is important to establish whether the circulation time increases with age, since it is particularly needed in older subjects to evaluate fatigue, dyspnea, edema, and other signs, possibly of cardiovascular origin.

Method  Twenty-five men between the ages of 69 and 80 were evaluated for relevant disease by interviews and physical examinations. The average age of the 25 subjects was 73.5 yr, and 23 were in the seventh decade. None had a history of cardiovascular disease or symptoms referable to the cardiovascular system.

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