0489: Interest of the calcium score in addition to the J-CTO score for grading CTO difficulty for PCI

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• 作者：Pierre Maheo ; Karim Stamboul ; Carole Richard ; Auré ; lie Gudjoncik ; Philippe Buffet ; Isabelle L&rsquo ; Huillier ; Valentin Yameogo ; Yves Cottin ; Luc Lorgis ; ^{luc.lorgis@chu-dijon.fr" class="auth_mail" title="E-mail the corresponding author}
• 刊名：Archives of Cardiovascular Diseases Supplements
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：8
• 期：1
• 页码：22
• 全文大小：173 K

文摘

To evaluate the incremental interest of performing a calcium score before CTO procedures, compared to the angiographic J-CTO score alone.

Patients and Methods

Prospective cohort of 109 consecutive patients with 119 de novo CTO lesions. Angiographic grading with the J-CTO score was compared with CT + angiographic staging (calcium score cut off>400) and a “corrected” J-CTO score, by ROC curve analysis to predict a successful recanalization.

Results

Thirty-two lesions (27%) had a calcium score >400.13 (11%) patients were reclassified in the “corrected” J-CTO score because calcifications were not seen in the angiogram. The factors significantly associated with the failure of the procedure were J-CTO score (OR 0.486 [0.32-0.73], p<0.001), corrected J-CTO score (OR 0.494 [0.33-0.73], p<0.001), a blunt lesion (OR 0399 [0182-0871], p=0.021) and a second attempt (OR 0322 [0121-0856], p=0.110). The calcium score >400 was not found associated with the failure of the procedure (OR 0.545 [0239-1243], p<0.149). By multivariate analysis, both J-CTO score (OR 0.645 [0418-0995], p=0.047) and the corrected J-CTO score (OR 0.631 (0410-0972] were significantly associated with a successful recanalization. However, calibration of the corrected J-CTO score was less good than the angiographic J-CTO score alone.

Conclusions

This study suggested that calcium score evaluation before CTO procedures is not useful for grading PCI difficulty.