[Flow obstruction and infection associated with the two-lumen subclavian catheter].

INTRODUCTION: The aim of this study was estimate correlation between catheter clotting and catheter-related injection in haemodialysis (HD) patients with temporary double lumen catheters (TDLC).

METHODS: We analysed 128 TDLC where we had exact microbiological result from catheter tip. There were 107 patients, mean age 54.70 +/- 15.02 years (15.80); 52 (48.60%) male ad 55 (51.40%) female, which were on haemodialysis 1162.62 +/- 183,424 (6-7200) days.

RESULTS: Major reasons for application TDLC were acute HD in 56 (43.75%), a function of A-V fistula in 40 (31.25%) patients, and a function of previous TDLC in 32 (25%) patients. The primary causes of chronic renal disease were diabetes mellitus in 34 (27%), pyelonephritis in 31 (24%), glomerulonephritis in 24 (19%), polycistic kidney disease in 14 (11%), nephropathia endemic in 10 (8%) and others disease in 15 (12%) of patients. The analysed TDLC remained in place for an average of 51.34 +/- 64.03 (range 2-518) days. In case of 92 (71.88%) we got positive microbiological result (Staphylococcus coagulasa negative 33%, Staphylococcus aureus 16%, Bacillus species 9%). In 38 of these catheters (41.30%) we diagnosed problems with blood flow. Totally, we had 50 TDLC with obstruction, but in 12 of them we did not have microbiological confirmation of infection.

CONCLUSION: Catheter clotting is one of the important factors that increase risk for developing catheter-related infection.