title: Efficacy of Multidetector Computed Tomography to Predict Periprocedural Myocardial Injury After Percutaneous Coronary Intervention for Chronic Total Occlusion.
abstract: Specific signatures of culprit lesions detected on multidetector computed tomography (MDCT) were identified as predictors of periprocedural myocardial injury (PMI) after percutaneous coronary intervention (PCI) in patients with stable angina; PMI has been shown to be associated with a worse prognosis. We investigated the association between preprocedural culprit lesion characteristics, assessed by MDCT, and PMI after PCI for chronic total occlusion (CTO). From three medical centers, 81 patients who underwent pre-PCI MDCT and CTO PCI, and systematic cardiac troponin (cTn) sampling before and after PCI, were included. Patients were divided into two groups according to the presence or absence of post-PCI cTn elevation. Patient characteristics, MDCT findings, and procedural variables were compared between the two groups. Procedure success was observed in 65 patients (80.2%) and was not associated with PMI. The incidence of PMI was higher in patients treated with the retrograde versus the antegrade approach. On MDCT, lesion length and the presence of the napkin-ring sign were significantly associated with PMI. Multivariate analysis revealed that the lesion length (odds ratio [OR]: 1.04; 95% confidence interval [CI]: 1.01-1.08; P < 0.05), napkin-ring sign (OR: 5.41; 95% CI: 1.01-29.0; P < 0.05), and retrograde approach (OR: 4.78; 95% CI: 1.28-15.4; P < 0.05) were significant predictors of PMI. PMI is not uncommon in patients undergoing elective CTO PCI, regardless of procedure success or failure. Pre-PCI MDCT may help identify patients at high risk for PMI after CTO PCI.
authors.affiliation: Department of Cardiovascular Medicine, Tsuchiura Kyodo General Hospital.
authors.forename: Eisuke
authors.initials: E
authors.lastname: Usui
authors.forename: Tetsumin
authors.initials: T
authors.lastname: Lee
authors.forename: Tadashi
authors.initials: T
authors.lastname: Murai
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Kanaji
authors.forename: Junji
authors.initials: J
authors.lastname: Matsuda
authors.forename: Makoto
authors.initials: M
authors.lastname: Araki
authors.forename: Taishi
authors.initials: T
authors.lastname: Yonetsu
authors.forename: Yosuke
authors.initials: Y
authors.lastname: Yamakami
authors.forename: Shigeki
authors.initials: S
authors.lastname: Kimura
authors.forename: Tsunekazu
authors.initials: T
authors.lastname: Kakuta
mesh_terms: D000368:Aged; D005260:Female; D006335:Heart Injuries / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D061330:Multidetector Computed Tomography; D062645:Percutaneous Coronary Intervention / Q000009:adverse effects*; D019990:Perioperative Care; D012189:Retrospective Studies