Table 3 Baseline and ongoing data collection

• age, sex, target weight, duration on dialysis, cause of renal failure

• type of catheter, insertion site, indication for catheter, history of rt-PA use or catheter replacement for malfunction

• details regarding previous catheter use

• history of deep vein thrombosis/pulmonary embolism

• baseline hemoglobin, platelets, albumin, Kt/V, urea reduction ratio (URR) and INR

• medication use

• comorbidities as defined by the Charlson Co-morbidity Index

• blood processed in millilitres

• time on dialysis (minutes)

• mean venous and arterial pressures

• number of dialysis set-ups (lines and membranes)

• mean intradialytic heparin dose

• weight loss

Monthly Laboratory Data:

• haemoglobin, platelets, albumin

• delivered dose of dialysis (Kt/V and URR)