Can haemodialysis-induced XXXX be predicted?

@entity1 @entity28577 @entity16689 @entity348 @entity551
BACKGROUND: During haemodialysis (HD) ultrafiltration may affect the central blood volume to an extent that blood pressure decreases. Thoracic electrical impedance (TI) is applied to monitor the central blood volume and we evaluated if it can be used to predict HD-induced @entity551 . METHODS: In 12 @entity551 prone (H) and 13 non- @entity551 prone (N) @entity1 , blood pressure and heart rate were recorded during one dialysis session every 30 min, while TI, thoracic intracellular water (Th(ICW)) and @entity348 ( @entity348 ) were followed every 10 min. @entity551 was defined as a @entity551 ( @entity28577 ) >/=30 mm Hg or a @entity16689 mm Hg. RESULTS: All 12 H @entity1 developed @entity551 after 190 +/- 10 min (mean +/- SE) as @entity28577 decreased 35 +/- 5 mm Hg, while the 13 N @entity1 maintained blood pressure. @entity348 increased in all @entity1 and the increase was similar (60 +/- 5 and 56 +/- 6 Omega in H and N @entity1 , respectively). In N @entity1 TI did not change significantly for the first 2 h of HD, while it became elevated by 2.8 +/- 0.6 Omega (1.5 kHz) and 2.3 +/- 0.7 Omega (100 kHz) by the end of the dialysis. In H @entity1 , the increase in TI took place at the onset of HD to reach higher values (by 7.0 +/- 0.5 Omega at 1.5 kHz and 5.9 +/- 0.5 Omega at 100 kHz). Th(ICW) was changed only in H @entity1 (decreased by 7.9 +/- 2.1 Siemens (S) 10(-4), p < 0.05), while HR increased (9 +/- 2 beats/min) in 8 of 12 H @entity1 , while it decreased in 1 @entity1 (by 9 beats/min). CONCLUSIONS: The results suggest that in HD @entity1 @entity551 is elicited by a reduction in the central blood volume that affects heart rate and the distribution of red cells within the body. To prevent HD-induced hypotention, the ultrafiltration rate could be reduced when an increase in thoracic impedance approaches 5 Omega, or when an index of intracellular water decreases by 6 10(-4).
