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Radial Arteriovenous Fistula After a Left Heart Catheterization: Two Case Reports.
Curēus 2023 May
The distal transradial artery (TRA) approach has been increasing in popularity over recent years due to its favorable ergonomics and potential for fewer vascular complications. Other advantages include lower bleeding risk, early ambulation, lower procedural costs, and same-day discharge, resulting in additional cost savings. We discuss two cases of patients who underwent left heart catheterizations through the radial artery access site and afterwards experienced fistula formation. Our case series brings to light a rare occurrence of arteriovenous fistulas (AVFs) following cardiac catheterization via the transradial artery site, thus enhancing our knowledge of the risk associated with this access site. The pathophysiology of AV fistula remains the same regardless of transfemoral or transradial artery use. During the procedure, needle diversion into the venous tributary results in an unrecognized combined artery and vein puncture, which usually seals spontaneously. However, if the communication persists, an AV fistula may occur. The majority of patients who suffer from an iatrogenic AVF as a result of TRA do not develop clinical signs of hemodynamic significance. There are various therapeutic strategies, which include surgical repair, placement of a covered stent, ultrasound-guided compression of the AV fistula, and conservative management. Both of our patients were evaluated by vascular surgery; one of the patients found the constant pulsation and bruit burdensome and underwent surgical repair.
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