Rotational atherectomy (RA) facilitates percutaneous coronary intervention for complex de novo lesions with severe calcification. Some observational studies and a small randomized trial indicated that a strategy of routine RA did not conferred reduction in restenosis or MACE, but these studies are limited by missing follow-up, insufficient power to compare outcomes, and confounding factors in the RA group (long lesion length, etc.). With recent developments in medical therapy, advances in design and delivery of drug-eluting stents (DES), and advances in noninvasive and intravascular coronary imaging, the use of RA in current real-world practice remains to be well determined. We aimed to compile real-world clinical outcomes data for the RotablatorTM Rotational Atherectomy System in routine clinical practice in China.
Study Type
OBSERVATIONAL
Enrollment
980
Patients with severe calcified lesions will receive rotational atherectomy during index PCI
The First Affiliated Hospital of USTC
Hefei, Anhui, China
Beijing Anzhen Hospital, Capital Medical University
Beijing, Beijing Municipality, China
Beijing Hospital
Beijing, Beijing Municipality, China
Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
Beijing, Beijing Municipality, China
Peking Union Medical College Hospital
Beijing, Beijing Municipality, China
Guangdong Provincial People's Hospital, Guangdong Academy of Medical Science
Guangzhou, Guangdong, China
The First Affiliated Hospital, Sun Yat-sen University
Guangzhou, Guangdong, China
Fuwai Central China Cardiovascular Hospital
Zhengzhou, Henan, China
The First Affiliated Hospital of Zhengzhou University
Zhengzhou, Henan, China
Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Wuhan, Hubei, China
...and 9 more locations
Major adverse cardiovascular event (MACE) (primary safety endpoint)
The composite of any ischemia-driven target lesion revascularization (TLR), myocardial infarction (MI), or cardiac death. Periprocedural myocardial infarction, defined as in patients with normal baseline CK-MB, the peak CK-MB measured within 48 hours of the procedure rises to ≥ 10 x the local laboratory ULN, or to ≥ 5 x ULN with new pathologic Q-waves in ≥ 2 contiguous leads or new persistent LBBB (according to SCAI definition. J Am Coll Cardiol 2013;62:1563-70)
Time frame: 30 days
Procedural success rate (primary efficacy endpoint)
A mean lesion diameter stenosis \<30% in 2 near-orthogonal projections with TIMI 3 flow, as visually assessed by the physician, without the occurrence of in-hospital MI, target vessel revascularization (TVR), or cardiac death
Time frame: Peri-procedural
TLR rate
Time frame: At 30 days and 12 months post-index procedure
Target lesion failure (TLF) rate
Time frame: At 30 days and 12 months post-index procedure
TVR rate
Time frame: At 30 days and 12 months post-index procedure
Target vessel failure (TVF) rate
Time frame: At 30 days and 12 months post-index procedure
MI rate
Time frame: At 30 days and 12 months post-index procedure
Cardiac death rate
Time frame: At 30 days and 12 months post-index procedure
Non-cardiac death rate
Time frame: At 30 days and 12 months post-index procedure
All-cause death rate
Time frame: At 30 days and 12 months post-index procedure
Cardiac death or MI rate
Time frame: At 30 days and 12 months post-index procedure
All-cause death or MI rate
Time frame: At 30 days and 12 months post-index procedure
All-cause death, MI, or TVR rate
Time frame: At 30 days and 12 months post-index procedure
Stent thrombosis (ST) rate
Time frame: At 30 days and 12 months post-index procedure
Subgroup analyses of MACE
1\. Age (\< 65 years vs. ≥ 65 years), 2. Female, 3. Hypertension, 4. Diabetes, 5. CKD, 6. Left ventricular ejection fraction (≤ 50% vs. \> 50%), 7. LM lesion, 8. Long lesion, 9. CTO, 10. Bifurcation lesion, 11. Speed of rotation, 12. Maximal burr size, 13. IVUS or OCT use
Time frame: At 30 days and 12 months post-index procedure
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