Published in:
01-07-2016 | Interventional Neuroradiology
Duplex-assisted carotid artery stenting without administration of contrast medium for patients with chronic kidney disease or allergic reaction
Authors:
Takashi Mizowaki, Atsushi Fujita, Taichiro Imahori, Atsushi Uyama, Satoshi Inoue, Masaaki Kohta, Hirotoshi Hamaguchi, Takashi Sasayama, Kohkichi Hosoda, Eiji Kohmura
Published in:
Neuroradiology
|
Issue 7/2016
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Abstract
Introduction
We aimed to investigate the safety and feasibility of duplex-assisted carotid artery stenting (CAS) without administration of contrast medium for the prevention of adverse reactions.
Methods
Fifteen patients (9 % of all CASs) with severe carotid stenosis (≥70 %) associated with chronic kidney disease (CKD) (stage ≥3) or allergy to contrast medium underwent duplex-assisted CAS without administration of contrast medium over 4 years. The procedural success rate and perioperative complication rates were compared between the duplex-assisted CAS (n = 15) and conventional CAS (n = 153) groups.
Results
The technical success rate was 100 % in both groups. Combined stroke or death rates during the post-procedural period did not differ significantly between the duplex-assisted CAS group (0/15, 0 %) and conventional CAS group (4/153, 2.6 %). None of the 14 patients with CKD in the duplex-assisted CAS group experienced further deterioration of renal function. The mean surface radiation dose of participants in the duplex-assisted CAS group (n = 13, 312 ± 131 mGy) was significantly lower than that of the conventional CAS group (n = 31, 1036 ± 571 mGy) (p < 0.001). The mean duration of CAS procedure was not significantly different between the duplex-assisted CAS group (156 ± 39.7 min) and the conventional CAS group (156 ± 37.4 min).
Conclusion
Duplex-assisted CAS without administration of contrast medium could be an alternative option in selected patients deemed to be at high risk for renal failure from nephrotoxic contrast medium or who have an allergy to contrast medium.