Application of blood return by tee union among central venous catheter in hemodialysis patients

Abstract

Objective To explore the clinical application of blood return by tee union among central venous catheter (CVC) in hemodialysis patients. Methods A total of 90 MHD patients had been selected and randomly divided into group A (opening blood return), group B (closing blood return), and group C (blood return by tee union) on average from August 2013 to July 2014 in Hemodialysis Center. We documented the length of blood return, the volume of 0.9% sodium chloride solution, red-cell count (RCC)in the residual liquid after dialysis, the change of C reactive protein at the beginning of treatment, 6 months and 12 months after treatment, and the rate of CVC relative infection (CVC-RI) among three groups. Results The length of blood return were (291.04±46.92), (340.75±51.36), (278.99±45.21)s in A, B, C group, the volume of 0.9% sodium chloride solution (186.72±27.65), (257.24±40.07), (191.11±32.53) ml, the number of RCC in the residual liquid after dialysis (4 628.4±501.6), (5 104.5±592.7), (4 588.2±546.9)/μl (F=3.932 7, 4.529 1, 3.133 8; P 0.05), but the length of blood return in these two groups were shorter than that of group B (P 0.05). The incidence rate of CVC-RI were 40.00%, 16.67%, 13.33% in group A, B and C (χ2=7.080 7, P 0.05). Conclusions The CVC in hemodialysis patients utilized tee union for blood return which is simple, organized, saving time and labor, and reduced the potential risk of CVC-RI, slight infection symptom and the volume of sodium chloride solution. Key words: Hemodialysis; Central venous catheter; Central venous catheter relative infection; Blood return by tee union