Venous Access Lines
Six patients (five on CVVH and one on NIDUS) had their venous access lines connected to their ECMO access cannulas. Of the seven CVVH patients that required central venous lines, one required two separate 18-gauge cannulas and six had double-lumen lines. Of the 34 patients treated with NIDUS without ECMO circuits, three used existing 6.5-French central lines, and 31 used single lumens with the following gauges and internal diameters (mm): 16 (1.66) in five; 18 (1.33) in 12; 20 (0.90) in 11; and 22 (0.72) in two.