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Evaluation of peripheral circulation in critically III patients by pulsed doppler ultrasonography

Critical Care and Shock Volume 4 Issue 4 Page 194-198
published_at 2001
2008010220.pdf
[fulltext] 424 KB
Title
Evaluation of peripheral circulation in critically III patients by pulsed doppler ultrasonography
Creators Kasaoka Shunji
Creators Kawamura Yoshikatsu
Creators Inoue Takeshi
Creators Tsuruta Ryosuke
Creators Sadamitsu Daikai
Creators Maekawa Tsuyoshi
Object: Because critically ill patients often have peripheral circulatory disturbance, it is very important to evaluate the status of peripheral circulation as well as cardiac function. We evaluted peripheral circulation in critically ill patients by pulsed Doppler ultrasonography. Methods: The subjects were 5 critically ill patients with the cold extremities. All of them were on mechanical ventilation in the intensive care unit. We measured the blood flow velocity of the radial artery before and during reactive hyperemia, which was induced by a 3-minute occlusion of the brachial artery by a tourniquest. Normal controls used for comparison were 10 healthy volunteers. Results: Skin temperature of the examined upper extremity in the patient group was significantly lower than that in the control group (26.1±2.4℃ versus 33.8±1.6℃,p<0.0001). Before reactive hyperemia, the mean blood flow velocity of the radial artery in the patient group was significantly lower than that in the control group (0.05±0.03 m/sec versus 0.27 ± 0.11 m/sec, p=0.0011). Pulsatility index and resistance index in the patient group were significantlly higher than those in the control group (9.3±4.4 versus 3.1±1.7, 1.4±0.3 versus 0.9±0.3, respectively). The baseline blood flow in all of the patient group had the reverse flow. The mean velocity of the reactive hyperemic blood flow in the patient group was significantly increased, compated witth that at baseline (0.05±0.03 m/sec to 0.21±0.11 m/sec, p<0.05), while pulsatility index and resistance index were significantly decreased. The increase rate of the mean flow velocity in reactive hyperemia was similar for both groups. Conclusion: The peripheral blood flow in criticallly ill patients with the cold extremities is significantly decreased, however the peripheral vascular responsiveness is maintained.
Languages eng
Resource Type journal article
Publishers The Indonesian Foundation of Critical Care Medicine
Date Issued 2001
File Version Version of Record
Access Rights open access
Relations
[ISSN]1410-7767
[isVersionOf] [URI]http://www.criticalcareshock.org/
Schools 医学部