Results 231 to 240 of about 8,470,821 (285)

Effect of passive tilting duration on the outcome of head-up tilt testing

Acta Cardiologica, 2007
We sought to compare the results of head-up tilt test (HUT) using the most common protocols, namely the Italian and Westminster prolonged by nitroglycerin (modified Westminster) protocols. We also investigated the role of passive tilting duration on HUT outcome.From 478 syncopal patients 306 (64%) individuals showed positive tilting results (HUT ...
Malgorzata, Lelonek, Adam, Stanczyk, Jan Henryk, Goch   +2 more
openaire   +3 more sources

Blistering on Tilt-Up Concrete.

2023
The new tilt-up concrete at a warehouse showed areas of blistered coating almost immediately after completion.
openaire   +1 more source

Effect of head up tilt on cerebral circulation

Acta Astronautica, 1994
This study was performed to study the effect of the head up tilt (HUT) on cerebral circulation across the time course (60 degrees HUT for 15 minutes) and across the different angles of HUT (15, 30, 45, 60 degrees HUT for 15 minutes). Cerebral circulation was continuously monitored during 15 minutes of HUT by the carotid Doppler flow meter, the ...
S, Yoshimoto, T, Ueno, Y, Mayanagi, C, Sekiguchi, S, Yumikura, A, Miyamoto, K, Yajima   +6 more
openaire   +2 more sources

The impact of gravity during head-up tilt

2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2011
The impact of gravity during head-up tilt, a test often used in the clinic to diagnose patients who suffer from dizziness or frequent episodes of syncope, is not well described. This study uses mathematical modeling to analyze experimental blood pressure data measured at the level of the aorta and the carotid sinuses in a healthy volunteer. During head-
Ottesen, Johnny T., Olufsen, Mette, Smith, Brittany, Mehlsen, Jesper   +3 more
openaire   +2 more sources

Prediction of Head-Up Tilt Test Result: Is it Possible?

Pacing and Clinical Electrophysiology, 2010
The determination of early, accurate, predictive criteria for a positive result would permit a reduction in the duration of the head-up tilt testing (HUTT). Previous studies propounded that existence of early sympathetic overreactivity (rapid and sustained increase in heart rate) during HUTT predicts positive result.
Turk U., Alioglu E., Kirilmaz B., Duygu H., Tuzun N., Tengiz I., Zoghi M., Ercan E.   +7 more
openaire   +4 more sources