SVU On Demand Webinar 110624: Dialysis Access Steal Evaluation Procedures-SVU On Demand Webinar 110624: Dialysis Access Steal Evaluation Procedures

SVU On Demand Webinar 110624: Dialysis Access Steal Evaluation Procedures

Video Transcription

Video Summary

The situation described, where there's retrograde flow in the radial artery that becomes antegrade in the distal half of the forearm, could suggest the presence of collateral circulation compensating for the flow being "stolen" by the fistula or graft. In the context of assessing for a true dialysis steal syndrome, the presence of retrograde flow initially suggests that the fistula might be influencing flow direction. However, if there is sufficient collateral circulation allowing for the flow to become antegrade in the distal forearm, the hand could still be adequately perfused, potentially negating significant clinical concerns of steal syndrome.<br /><br />A comprehensive evaluation considering both physiological and duplex findings is necessary to conclude if a clinically significant steal is present. The physiological exam could help determine if enough perfusion is reaching the digits, and the colored doppler evaluation from the duplex study can offer more insights into the flow dynamics and potential collateral pathways. Only if the patient also presents with symptoms of arterial steal syndrome, such as pain or ischemia symptoms, would it require further intervention or confirmation through additional diagnostic methods.

Keywords

retrograde flow

radial artery

antegrade flow

collateral circulation

dialysis steal syndrome

fistula influence

duplex findings

perfusion assessment

arterial steal symptoms