Comparison of Effectiveness and Safety of Two Methods for Installing Femoral Central Venous Catheters in Pediatric Intensive Care Units : Anatomical Method vs Ultrasound in Real Time.

STUDY DESIGN Multicenter prospective randomized study in pediatric intensive care units of the Roberto del Rio's hospital and Exequiel González Cortés' hospital. Patients from entering the study between the months of January/2015 to December/2015, after signing informed by their parents or legal guardian consent, this will be implemented by the resident

PATIENTS Previous studies report an average success rate of 50% on the first attempt in the anatomical method, both children and adults. Sample size is determined to improve on a 30% success rate using the ultrasound method. For a power of 80% in relation to success at the first attempt and with a confidence level of 95%, a total of 50 patients per branch is determined.

Method of randomization Using computer program the patient leaving 50 patients in the group with the anatomical method, and 50 patients in the ultrasound method are randomized .

OPERATOR Both installation landmark and ultrasound guidance will be performed by 3 or 4 team doctors resident in each center , who count on ≥ 3 years of experience in ICU and training in ultrasound-guided access .

DEFINITIONS