Outcomes {12}
hematoma, perdialytic bleeds, anxiety, pain
ADVERSE EVENTS, EVENTS, HEMATOMA, SECONDARY
The primary outcome is the number of adverse events occurring during AVF puncture in the TT and TTST groups (comparison of percent occurrence of events in each group) defined by any of the following events: unipuncture failure, bipuncture failure, simple hematoma, hematoma not allowing continuation of dialysis.The secondary outcomes are the number of perdialytic bleeds: accidental needle withdrawal, pain score (numerical scale) experience at the time of puncture, ease or difficulty of puncture, patients’ anxiety score (numerical scale) at the time of puncture, use of ultrasound by the nurse, and type of equipment used for the puncture (needle or catheter).