Cachovan, Milan; Linhart, Jir�; Prerovsky, Ivo
July 1968
Angiology;Jul1968, Vol. 19 Issue 7, p381
Academic Journal
1. Morphology of the pulse wave curve from five segments of the lower limb (proximal) and distal half of the thigh, popliteal region, proximal and distal half of the calf) has been analyzed. Crest time (C.T.), index of elasticity (e) and ? angle were evaluated. 2. C.T. values at rest varied according to the place of recording. Normally, they did not exceed 200 msec, and reached their maxima at the thigh and their minima above the ankle. C.T. was identical with the inclination time; e was greater than 1.0; � angle was acute. The variability of the last two parameters was considerable. 3. The changes of C.T. during the cold pressure test were not significant. During the passive tilting to 60� from the horizontal plane, the C.T. significantly shortened in all segments under study. This shortening was quantitatively dependent on the increase of mean blood pressure (MBP). 4. A significant prolongation of C.T. after application of the pneumatic cuff occurred in the region proximal to the cuff before the reactive hyperemia (RH) test. During the RH itself no changes of C.T. were observed. A similar prolongation of C.T. in the distal part of the lower limb was also noticed after body heating (BH). 5. The e and � indices during the functional stresses of the circulation in the lower limb did not show any essential changes. The index of elasticity showed a slight decrease and the ? angle an unsubstantial increase during the pressor reactions (cold pressure test, head-up tilting test). 6. The advantages of the suggested method of measurement of arterial elasticity for diagnosis of early atherosclerosis in the extremities are pointed out.


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