RESUMEN
Objective To discuss the blockage reasons and countermeasures of temporary catheter in central venous including femoral vein and internal jugular vein for hemodialysis patients.Methods The reasons of blockage of temporary catheter in central venous among 60 hemodialysis patients from January 2014 to September 2015 in Hemodialysis Room of the First People's Hospital of Longquanyi district of Chengdu were reviewed.There were 32 cases in femoral vein and 28 cases in the right internal jugular vein.The incidence of blockage of the two temporary catheter in the first two weeks,the incidence of blockage caused by mechanical factors and blood clots or fibrous sheath and the incidence of blockage which needed to change the catheter in the two groups patients within the first two months were analyzed.Results The first rate of defective function in the first two weeks of femoral vein group was 53.13％(17/32),and 7.14％(2/28) of the right internal jugular vein group,there were significant difference between the two groups (x2=13.061,P＜0.001).The incidence of catheter blockage due to mechanical factors of femoral vein group was 96.88％ (31/32),and 53.57％ (15/28) of the right internal jugular vein,there were significant difference between the two groups (x2 =15.654,P＜0.001).The incidence of blockage caused by blood clots or fibrous sheath and the incidence of blockage which needed to change the catheter in the first two months were no significant differences between the two groups(P=0.061,0.096).Conclusion The cases of temporary catheter in femoral vein have blockage earlier,and they have a higher risk of catheter jam than the cases of temporary catheter in right internal jugular vein.