Are single-lumen 5Fr and triple-lumen 6Fr PICCs suitable for hemodynamic assessment by trans-pulmonary thermodilution? A pilot study

Annals of Intensive Care

Table 6 Injection pressure, ΔT and CI during automated rapid injection through PICCs of different lumen size: comparison with CICC

	Triple-lumen 7Fr CICC	Single-lumen 5Fr PICC	Triple-lumen 6Fr PICC	Double-lumen 5Fr PICC^a
Internal diameter, mm^a	1.016	1.02	0.94	0.81
Mean Psi	110	112	120	130
ΔT bias, °C^b	Reference	− 0.017	− 0.05	− 0.12
CI mean difference, L/min/m²	Reference	0.16	0.39	1.55
CI bias, %	Reference	5.4	12.5	39.3

^aData from D’Arrigo et al. [7]
^bDifference between mean ΔT_PICC and mean ΔT_CICC
CI: cardiac index; CICC: centrally inserted central catheter; ΔT: delta temperature; PICC: peripherally inserted central catheter; Psi: pound per square inch