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Corresponding Author

Yosry Ahmed Mohamed Ahmed

Document Type

Original Article

Abstract

Background: Successful percutaneous coronary intervention (PCI) for chronic complete occlusion (CTO) is linked to a decrease in CABG procedures, an improvement in long-term mortality, and better clinical outcomes.

Aim: To assess the predictive power of the CT-RECTOR score in terms of final procedure success and guidewire (GW) crossing efficiency through a CTO.

Patients and Methods: This study was performed at the National Heart Institute, Giza, and conducted on 40 patients who will undergo CCTA before attempting PCI to a CTO. A 30-minute window for a successful GW crossing was the initial endpoint. The second endpoint was the procedure's ultimate success.

Results: In 40% and 82.5% of lesions, respectively, the first and second objectives were reached. First endpoint: The sensitivity was found to be 0.798 and 0.954, respectively, when the AUC (area under the curve) for the CT-RECTOR score was compared to the J-CTO score, specificity, PPV and NPV for the CT-RECTOR score are 87.5, 95.83, 93.3 and 92; respectively and for J-CTO score 81.25, 66.67, 61.9 and 84.2; respectively. Second endpoint: AUC for CT-RECTOR score compared with the J-CTO score found 0.842 and 0.810, respectively, while sensitivity, specificity, PPV, and NPV for CT-RECTOR score are 75.76, 85.71,96.2 and 42.9; respectively and for J-CTO score 60.61, 85.71, 95.2 and 31.6; respectively.

Conclusion: A helpful tool for estimating the complexity and time-efficiency of (GW) crossing in CTO and the success of the procedure overall is the CT-RECTOR score. In terms of GW crossing times and procedure success, the CT-RECTOR score fared better than the J-CTO Score.

Keywords

CCTA; CT-RECTOR; J-CTO; Guidewire

Subject Area

Cardiovascular

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