OBJECTIVES: This study sought to compare the initial success rate of percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) in a native coronary artery (NCA) in patients with and without previous coronary artery bypass grafting (CABG) and to assess predictive factors. BACKGROUND: Landmark novel wiring techniques for CTO-PCI have contributed to improvement in the initial success of CTO-PCI. However, challenges persist in CTO-PCI in NCA in pCABG patients. METHODS: Patients who underwent CTO-PCI in an NCA were selected and classified into 2 groups: pCABG (206 PCIs in 153 patients) and nCABG (1,431 PCIs in 1,139 patients). RESULTS: CTO was located more often in the left anterior descending artery (p = 0.0003), and severe calcified lesions were observed more frequently in the pCABG group (p < 0.0001). Although the retrograde attempt was tried more frequently in the pCABG group, the CTO-PCI success rate was significantly lower in the pCABG patients than in the nCABG patients (71% vs. 83%). Longer procedural time and greater radiation exposure were needed in the pCABG patients. Logistic regression analysis among the pCABG patients revealed that intravascular ultrasound use and parallel wiring were positive factors, and lesion tortuosity was a negative factor. CONCLUSIONS: The initial success rate of CTO-PCI of an NCA in the pCABG group was significantly decreased compared with that in the nCABG group. Anatomic complexity and unstable hemodynamic state were unfavorable conditions. This study reveals that the issues to be overcome are lying with CTO revascularization in an NCA in pCABG patients.
OBJECTIVES: This study sought to compare the initial success rate of percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) in a native coronary artery (NCA) in patients with and without previous coronary artery bypass grafting (CABG) and to assess predictive factors. BACKGROUND: Landmark novel wiring techniques for CTO-PCI have contributed to improvement in the initial success of CTO-PCI. However, challenges persist in CTO-PCI in NCA in pCABGpatients. METHODS:Patients who underwent CTO-PCI in an NCA were selected and classified into 2 groups: pCABG (206 PCIs in 153 patients) and nCABG (1,431 PCIs in 1,139 patients). RESULTS: CTO was located more often in the left anterior descending artery (p = 0.0003), and severe calcified lesions were observed more frequently in the pCABG group (p < 0.0001). Although the retrograde attempt was tried more frequently in the pCABG group, the CTO-PCI success rate was significantly lower in the pCABGpatients than in the nCABG patients (71% vs. 83%). Longer procedural time and greater radiation exposure were needed in the pCABGpatients. Logistic regression analysis among the pCABGpatients revealed that intravascular ultrasound use and parallel wiring were positive factors, and lesion tortuosity was a negative factor. CONCLUSIONS: The initial success rate of CTO-PCI of an NCA in the pCABG group was significantly decreased compared with that in the nCABG group. Anatomic complexity and unstable hemodynamic state were unfavorable conditions. This study reveals that the issues to be overcome are lying with CTO revascularization in an NCA in pCABGpatients.
Authors: Aurel Toma; Barbara E Stähli; Michael Gick; Cathérine Gebhard; Thomas Nührenberg; Kambis Mashayekhi; Miroslaw Ferenc; Franz-Josef Neumann; Heinz Joachim Buettner Journal: Clin Res Cardiol Date: 2017-02-24 Impact factor: 5.460
Authors: Nicola Ryan; Nieves Gonzalo; Philip Dingli; Oscar Vedia Cruz; Pilar Jiménez-Quevedo; Luis Nombela-Franco; Ivan Nuñez-Gil; María Del Trigo; Pablo Salinas; Carlos Macaya; Antonio Fernandez-Ortiz; Javier Escaned Journal: Int J Cardiovasc Imaging Date: 2017-02-14 Impact factor: 2.357
Authors: Barbara A Danek; Aris Karatasakis; Dimitri Karmpaliotis; Khaldoon Alaswad; Farouc A Jaffer; Robert W Yeh; Mitul P Patel; John Bahadorani; William L Lombardi; R Michael Wyman; J Aaron Grantham; David E Kandzari; Nicholas J Lembo; Anthony H Doing; Catalin Toma; Jeffrey W Moses; Ajay J Kirtane; Ziad A Ali; Manish Parikh; Santiago Garcia; Phuong-Khanh Nguyen-Trong; Judit Karacsonyi; Aya J Alame; Pratik Kalsaria; Craig Thompson; Subhash Banerjee; Emmanouil S Brilakis Journal: Can J Cardiol Date: 2016-04-22 Impact factor: 5.223