Every patient need venous access for surgery under anesthesia. It is the most frequently performed invasive procedure in medicine in the whole world. In expert groups, ultrasonographically guided vascular access (UGVA) appears to be a significantly better method, but studies on larger groups of patients are lacking. Prospective randomized 2-arm study which is comparing success rate of ultrasound guided a palpation inserted cannulas in patients undergoing primary hip or knee arthroplasty. The project will be managed according to the protocol of principles of Good Clinical Practice and valid regulations.
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Ultrasound guided venous access need less attempts to successful cannulation
Timeframe: up to 24 hours