Table 3

 Non-ED Randomised Controlled Trials

PaperN/TypeGroupInter-ventionOutcomeComments
CVC, central venous catherisation; ICU, intensive care unit; IJ, internal jugular vein; RCT, randomised controlled trial.
Mallory et al15 199027 RCT (with partial crossover)IJ CVC insertion in ICU patients by Senior ICU StaffFailure rateSmall numbers
Ultrasound0/12No power calculation
Landmark6/17 (p<0.05)
Number of attempts
Ultrasound1.75
Landmark3.12 (p<0.05)
Success on crossover
To Ultrasound6/6
Troianos et al16 1991160 RCTCVC insertion in Cardio-thoracic patientsSuccess RateNo baseline statistics.
Ultrasound77/77Randomisation process not described
Landmark80/83 (NS)
First attempt success
Ultrasound56/77
Landmark45/83 (p<0.05)
Number of attempts
Ultrasound1.4±0.7
Landmark2.8±3 (p<0.05)
Time to insertion
Ultrasound61±46 sec
Landmark117±136 sec (p<0.05)
Denys et al17 1993604 (1230) RCT (302 Ultrasound vs 302 landmark followed by 626 patients Ultrasound only)IJ CVC insertion in cardiac catheter patients by senior cardiologistSuccess ratePoor randomisation technique (one week blocks of Ultrasound or landmark)
Ultrasound 1302/302No blinding
Ultrasound 2626/626
Landmark66/302 (p<0.001)
Complication rates (p<0.001):
Ultrasound1/Ultrasound2/LMCarotid puncture
8/8/25
Brachial Plex
Injury
1/3/5
Haematoma
0/2/10
Total number attempts
Ultrasound11.2±0.5,
Ultrasound21.4±0.9
Landmark2.5±2.7 (p<0.001)
First attempt success
Ultrasound1248
Ultrasound2473
Landmark116 (p<0.001)
Gualtieri et al18 199533 patients 53 placements RCTSC CVC insertion in ICU patientsSuccess rateNo blinding.
Operators with <30 procedures.Ultrasound23/25Initial power calculation ignored and trial stopped when significance reached.
Landmark12/27 (p = 0.0003)Group overlap: experienced operator intervened in 2 cases
Complication rate
Ultrasound1/25
Landmark11/27 (p = 0.002)
Total number attempts
Ultrasound1.4
Landmark2.5 (p = 0.0007)
CVC kit usage
Ultrasound1.0
Landmark1.4 (p = 0.0003)
Slama et al19 199779 RCTIJ CVC insertionSuccess rateNo power calculation.
ICU patients by Junior doctorsUltrasound37/37No blinding
Landmark32/42 (p<0.01)
Time to insertion
Ultrasound95±174 sec
Landmark235±408 (p = 0.06;NS)
Complication rate
No sig. difference