Interest of the Ultrasound Guidance for the Laying of Femoral Arterial and Venous Catheters in Intensive Care Unit

The insertion of the venous and arterial catheter will be done using ultrasound guidance. Vein and artery will be identified in cross section. In case of anatomical difficulties, complications of puncture with anatomical landmarks, or if installation time is greater than \> 5 minutes, an intra-osseous catheter will be put in place to avoid delaying of treatment according to the current practice of the intensive care unit.

"In the anatomical group, catheter will be inserted using, as it is currently done in intensive care unit, anatomic landmarks. If catheterization according to the anatomic method is considered too difficult (\> 3 punctures), a conversion to ultrasound guidance will be done.~In case of anatomical difficulties, complications of puncture with anatomical landmarks, or if installation time is greater than \> 5 minutes, an intra-osseous catheter will be put in place to avoid delaying of treatment according to the current practice of the intensive care unit."