Effect of cutting balloon after rotational atherectomy in severely calcified coronary artery lesions as assessed by optical coherence tomography
| Autor: | Yuji Oyama, Naoei Isomura, Gary S. Mintz, Morio Ono, Toshitaka Okabe, Masahiko Ochiai, Kisaki Amemiya, Shigeo Saito, Koichi Hoshimoto, Seitarou Ebara, Takehiko Kido, Tadayuki Yakushiji, Myong Hwa Yamamoto, Akiko Maehara, Kennosuke Yamashita, Hiroshi Araki, Wataru Igawa |
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| Rok vydání: | 2019 |
| Předmět: |
Atherectomy
Coronary Male Time Factors medicine.medical_treatment chemistry.chemical_element Coronary Artery Disease 030204 cardiovascular system & hematology Calcium Balloon Severity of Illness Index 03 medical and health sciences 0302 clinical medicine Predictive Value of Tests medicine Humans Radiology Nuclear Medicine and imaging Prospective Studies 030212 general & internal medicine Angioplasty Balloon Coronary Vascular Calcification Aged business.industry Stent General Medicine Odds ratio Middle Aged Coronary Vessels Confidence interval Treatment Outcome medicine.anatomical_structure chemistry Female Stents Hemodialysis Cutting balloon Cardiology and Cardiovascular Medicine business Nuclear medicine Tomography Optical Coherence Artery |
| Zdroj: | Catheterization and Cardiovascular Interventions. 94:936-944 |
| ISSN: | 1522-726X 1522-1946 |
| Popis: | OBJECTIVES Using optical coherence tomography (OCT), we evaluated the effect of a cutting balloon (CB) compared with a conventional balloon after rotational atherectomy (RA) and before stenting in severely calcified coronary lesions. BACKGROUND A CB is designed to create discrete incisions to facilitate fracture of severely calcified plaque. METHODS OCT was performed preintervention (if possible), post-RA, and poststent implantation. RA modification of calcium was defined as a polished, concave, round-shaped surface. Calcium fracture was defined as a break in the calcium plate. The effects of calcium modification and stent expansion between CB (n = 18) versus conventional balloon (n = 23) following RA were compared. RESULTS Median patient age was 72 years with 24% on hemodialysis. The amount of calcium and the length of RA modification were comparable between the CB and conventional balloon groups. Final poststent OCT showed that the number and thickness of calcium fracture were greater after CB versus conventional balloon, resulting better stent expansion (78.9% [IQR: 72.4-88.1] vs. 66.7% [IQR: 55.0-76.7], p |
| Databáze: | OpenAIRE |
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