Heat accumulation with relative blood volume decrease.
Heat accumulation with relative blood volume decrease.
复制标题
热量积累随相对血容量减少。
DOI：
10.1053/ajkd.2002.35689
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
N. Levin
中科院分区：
文献类型：
--
作者：
D. Schneditz;L. Rosales;A. Kaufman;G. Kaysen;N. Levin
背景
BACKGROUND
Both hypovolemia and heat accumulation act as powerful perturbations of blood pressure control. In hemodialysis, hypovolemia and heat accumulation often develop simultaneously, and the question arises of whether and to what extent these perturbations are linked.
METHODS
Heat accumulation was measured by the amount of thermal energy (E) removed from a patient during prescribed ultrafiltration under isothermic hemodialysis conditions, ie, constant patient temperature. Measurement and control of temperatures and thermal energies were performed using the blood temperature monitor. Relative blood volume (RBV) was measured using the blood volume monitor.
RESULTS
Thirty-eight treatments were analyzed in 12 patients (3 women). During treatments lasting 189 +/- 28 minutes, 5.1% +/- 1.3% of postdialysis body weight were removed from patients by ultrafiltration at a mean rate of 1.1 +/- 0.3 L/h. Blood volumes decreased to 85% +/- 7% of initial values, and 229 +/- 106 kJ of E were removed from patients at a cooling rate (J) of 20 +/- 8 W, corresponding to 28% +/- 11% of estimated energy expenditure (H%). E, J, and H% significantly increased as RBV decreased (P < 0.05). Linear regression analysis between J and RBV showed that approximately 1 W had to be removed from the patient for each percentage of change in blood volume (J = -102.38 + 0.97* RBV; r2 = 0.63).
CONCLUSION
Results show that the probability for the effect of heat stress during hemodialysis increases with ultrafiltration-induced blood volume changes. Temperature control is an important aspect of hemodialysis treatment.
血液透析患者的能量消耗增加。
DOI：
10.1681/asn.v7122646
发表时间：
1996
期刊：
Journal of the American Society of Nephrology : JASN
影响因子：
--
作者：
Ikizler,TA;Wingard,RL;Sun,M;Harvell,J;Parker,RA;Hakim,RM
通讯作者：
Hakim,RM