It was reported that the procedure was performed to treat a lesion in a previously created right radiocephalic arteriovenous (av) fistula.
The patient has a history of stenosis of the subclavian/innominate vein, causing arm swelling, with implantation of an unspecified stent to treat the stenosis.
The patient presented with swelling in her right arm and the procedure was performed to treat stenosis of the av fistula.
The 12.
0 x 40 mm armada 35 dilatation catheter was advanced to the target site.
The balloon was inflated to 5 atmospheres (atm) and the balloon ruptured.
An attempt was made to remove the dilatation catheter; however, resistance was noted and it was obvious that something was preventing the removal of the device.
The dilatation catheter was able to come out of the sheath, but it could not be removed from the guide wire.
It appeared that the tip of the catheter and balloon may have separated and remained in the anatomy.
Angiography noted that the balloon marker was caught on the previously implanted stent.
The dilatation catheter was cut and removed from the guide wire.
A 6 french non-abbott sheath was then advanced over the guide wire and the guide wire was removed.
It appeared that the ruptured balloon had wrapped around the guide wire, causing the difficult removal.
Angiography noted the distal radiopaque balloon marker in the subclavian vein.
The decision was made to implant a covered stent to cover the entire area.
Additional post dilatation was performed and final angiography noted that the stent was widely patent.
No additional information was provided.
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