Abstract
The aim of the study is to evaluate the impact of single-plane and bi-plane imaging on procedural time, fluorescence time, and contrast medium volume in retrograde chronic total occlusion (CTO) percutaneous coronary intervention (PCI). Between January 2008 and December 2015, a total of 359 patients received scheduled retrograde CTO PCI and were enrolled in the study; 119 patients underwent PCI by single-plane imaging, and another 240 patients underwent PCI by bi-plane imaging. A 95.0% rate of technical success was noted in the single-plane imaging group, and a 95.8% rate of technical success was noted in the bi-plane imaging group. All patients received the CTO approach via the retrograde method, and the retrograde method success rate was 88.2% in single-plane imaging group, and 81.7% in the bi-plane imaging group. A longer procedural time (153.73 ± 53.15 vs 172.88 ± 61.30 min; P = 0.004), longer fluorescence time (71.40 ± 25.96 vs 80.95 ± 34.70 min; P = 0.008), and more contrast medium volume (342.77 ± 102.25 vs 394.58 ± 156.41 mL; P = 0.001) were noted in the bi-plane imaging group. After propensity score match, a longer procedural time, longer fluorescence time, and more contrast volume was noted in bi-plane group. Bi-plane imaging could not decrease procedural time, fluorescence time, and contrast medium volume in retrograde CTO PCI.
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