Consideration about the blood vacuum pressure and the alarm frequency of occurrence by the difference in the vascular access hemodialysis catheters

Abstract

The beneficial effects and security of PowerTrialysis^® (PT) were investigated. The blood vacuum pressure during continuous blood purification (CBP) therapy and the frequency of vacuum alarm were investigated for different vascular access hemodialysis catheters. We examined the vacuum pressure and frequency of vacuum alarm in 61 patients who received CBP therapy in the intensive-care unit in this hospital between August 2015 and February 2017. Because the blood vacuum pressure was dependent on the length of the catheter, same length (24cm) was used for the comparison of various catheters. The results showed lower intentionally criteria of the blood vacuum pressure was demonstrated in the PT group. The PT group also showed a significantly lower frequency of vacuum alarm than other catheters. The PT device has a nose shape and is making a side hole Therefore, this catheter may prevent the so-called clinging phenomenon. The choice of catheter is important when performing CBP for avoiding unexpected trouble in the intensive-care unit.