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血流储备分数

Abstract

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Diagnosis of ischemia-causing coronary stenoses by noninvasive fractional flow reserve computed from coronary computed tomographic angiograms. Results from the prospective multicenter DISCOVER-FLOW Fractional Flow Reserve-Guided Complete Revascularization Improves the Prognosis in Patients With ST-Segment-Elevation Myocardial Infarction and Severe Nonculprit Disease: A DANAMI 3-PRIMULTI Substudy (Primary PCI in Patients With ST-Elevation Myocardial Infarction and Multivessel Disease: Treatment Prognostic Implication of Thermodilution Coronary Flow Reserve in Patients Undergoing Fractional Flow Reserve Measurement Physiologic Characteristics and Clinical Outcomes of Patients With Discordance Between FFR and iFR Relationship between fractional flow reserve value and the amount of subtended myocardium Impact of myocardial supply area on the transstenotic hemodynamics as determined by fractional flow reserve High-Resolution Cardiac Magnetic Resonance Imaging Techniques for the Identification of Coronary Microvascular Dysfunction Diagnostic Performance of Angiogram-Derived Fractional Flow Reserve: A Pooled Analysis of 5 Prospective Cohort Studies

Original Research2019 Jan 16. [Epub ahead of print]

JOURNAL:Cardiovasc Interv Ther. Article Link

Clinical and angiographic outcomes of coronary dissection after paclitaxel-coated balloon angioplasty for small vessel coronary artery disease

Funatsu A, Kobayashi T, Mizobuchi M et al. Keywords: Coronary dissection; Paclitaxel-coated balloon; Small vessel coronary artery disease

ABSTRACT


The mechanism of how angiographic results following paclitaxel-coated balloon (PCB) treatment for small vessel disease affect patient outcome remains unknown. In the present study, we aimed to investigate the correlation between coronary dissection immediately after PCB angioplasty and midterm outcome. From March 2014 to March 2017, 171 consecutive patients with 228 native coronary artery lesions who received PCB angioplasty at a single center were enrolled retrospectively. Lesions with a reference vessel diameter > 2.8 mm were excluded. There were dissections in 80% of the lesions immediately following PCB angioplasty. Of these, 38% were type A, 29% were type B, and 13% were type C or more severe dissection. No patient required revascularization during hospitalization. We were able to follow 159 patients (212 lesions) clinically for > 6 months, from among whom target lesion revascularization (TLR) was performed in 7% of the patients. Follow-up angiography was performed on 143 lesions (67%), and complete healing of all dissections was noted. The rates of restenosis and late lumen enlargement were 12% and 56%, respectively. Multivariate analysis identified that a bending lesion was an independent predictor of TLR, and type C-E dissection and imaging device use were independent predictors of restenosis. Conversely, lesions with type B dissection had a larger net gain than lesions with type A or no dissection. Leaving the dissection uncovered after PCB angioplasty seems to be safe, resulting in a low acute event rate. The type B dissection after PCB angioplasty was the most therapeutic dissection.