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One hundred six normal people were studied for variations of eight pulse pressure parameters dealing with time and pressure measurements as obtained through a left brachial artery needle. Two hundred twenty-two patients including nine separate disease states were studied in the same fashion. An increase in the mean pulse wave velocity was found in children under 10 years of age as compared with people from 10 through 39 years of age. An increase in the mean pulse wave velocity was noted in the 57 normal patients from 40 to 79 years of age when compared with the 10 to 39 age group. This increased mean velocity was identical with the mean velocity of the 0 to 9 age group. Within the limits of this study pulse wave velocity did not appear to be related to blood pressure change in hypertensive individuals. A consistent rise in mean upstroke duration (anacrotic limb time) was seen with advancing age. Total systolic mean duration was shorter for the 0 to 9 age group than for either the 10 to 39 or the 49 to 79 age group. 8. The percentage of systole used to reach the peak systolic pressure showed a progressive rise with age. 9. In resting normal people the percentage of total cycle length used for systolic contraction was remarkably constant in all age groups. The mean was 0 to 9 age group, 40 per cent; 10 to 39 age group, 39 per cent; and 40 to 79 age group, 40 per cent. 10. Within the normal range, systolic blood pressure rose consistently with age, diastolic blood pressure showed little or no change and pulse pressure as it reflected the systolic pressure, rose consistently with age. U. The analysis of six parameters of measurement, related to the contour of the brachial artery pulse pressure revealed a number of interesting observations related to aging but was of no real value for the individual patient as an aid to the diagnosis of the nine disease states studied. [ABSTRACT FROM AUTHOR]

Examines the use of MacNeill-Collins blood dialyzer during ultrafiltration by researchers from Hartford, Connecticut. Efforts of the researchers to establish an artificial kidney program; Exploration on the potential use of ultrafiltration as a method for the removal of edema fluid; Safety and efficacy of MacNeill-Collins blood dialyzer.

1. The dosage of propranolol needed in the treatment of patients with cardiac arrhythmias or angina poctoris in our study, has depended upon the relief of symptoms, the heart, rate, the degree of fatigue and the blood level attained. 2. A reduction in total dose was not necessary, in the absence of symptoms, unless the heart rate was sustained below 52 beats per minute. 3. Fatigue, in the absence of clinical heart failure, need not signal a reduction in dose unless sustained for two weeks. 4. In this study, a propranolol blood level of .03 μg/ml or higher was associated with the best symptom relief. 5. An increment dose of propranolol every three hours was needed to sustain a blood level of .03 μg/ml or higher in most patients studied. The smallest total daily dose on the q3h schedule for good relief of anginal pain was 80 mgs daily. The average daily dose required for relief of pain was 218 mgs. 6. The apparent half-life of propranolol hydrochloride after the ingestion of one 40 mg tablet is between two and three hours. [ABSTRACT FROM AUTHOR]

Investigates the expansion of the concept of idiopathic aortitis to embrace stenotic and aneurysmal changes of any part of the aorta. Observation of a wide spectrum of syndromes of arterial insufficiency; Detection of systemic hypertension proximal to the sites of stenosis; Assessment of the stenosis of arteries arising from the aortic arch.