Table 1 Comparison of the characteristics of patients in whom parallel guidewire imaging succeeded or failed.

From: Availability of ultrasound imaging of a guidewire parallel to the vein during internal jugular central venous catheter placement

 

All patients (n = 56)

Parallel guidewire imaging

p value

Success (n = 45)

Failure (n = 11)

Age (years)

75 (67–81)

75 (68–80)

71 (66–82)

0.96

Male sex

37 (66%)

20 (67%)

17 (65%)

0.85

Height (cm)

157 (154–164)

157 (154–164)

162 (153–169)

0.94

Weight (kg)

57 (51–67)

56 (48–64)

61 (54–82)

0.02

Body mass index (kg/m2)

22.5 (20.2–24.8)

21.9 (20.0–24.1)

27.3 (21.6–32.6)

0.004

Depth of the IJV (mm)

8 (6–9)

8 (6–9)

7 (6–10)

0.80

Sagittal diameter of the IJV (mm)

10 (8–13)

10 (8–13)

11 (8–14)

0.39

Distance from the puncture site to the clavicle (mm)

48 (42–54)

48 (44–56)

39 (33–42)

 < 0.001

  1. Data are presented as median (interquartile) or number (proportion). IJV internal jugular vein.