In-Hospital Outcomes of Rotational Atherectomy in High-Risk Patients With Severely Calcified Left Main Coronary Artery Disease: A Single-Center Experience

被引:1
作者
Dhillon, Ashwat S. [1 ]
Narayanan, Meena R. [1 ]
Tun, Han [1 ]
Hindoyan, Antreas [1 ]
Matthews, Ray [1 ]
Mehra, Anilkumar [1 ]
Shavelle, David M. [1 ]
Clavijo, Leonardo C. [1 ]
机构
[1] Univ Southern Calif, Div Cardiovasc Med, Keck Sch Med, Los Angeles, CA 90007 USA
关键词
left main coronary artery; mechanical circulatory support; percutaneous coronary intervention; rotational atherectomy; INTRAVASCULAR ULTRASOUND; STENT IMPLANTATION; LESIONS; INTERVENTION; ANGIOPLASTY; ROTABLATION; IMMEDIATE; IMPACT; TRIALS; HEART;
D O I
暂无
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Severe coronary artery calcification is a challenge for percutaneous coronary intervention (PCI), particularly in left main coronary artery disease (LM-CAD). Rotational atherectomy (RA) is a useful tool for modification of calcified plaque prior to PCI. We report our experience with RA for severely calcified LM-CAD. Methods. From January 2008 to January 2017, all patients who underwent RA-assisted LM-PCI were evaluated. The study population included both protected and unprotected LM-CAD patients. Clinical characteristics and in-hospital outcomes were collected retrospectively. In-hospital outcomes included post-PCI myocardial infarction, stroke, death, emergency coronary artery bypass graft surgery, and urgent repeat PCI. Angiographic success was defined by residual stenosis <20% and presence of TIMI 3 flow. Results. Fifty-five consecutive patients who uritterWent armed PCI of LM-CAD were identified (mean age. 73.0 +/- 10 years: 64% male). Mean left ventricular ejection fraction was 37.5 +/- 15.7%. Fifty-one patients (93%) had multivessel disease and 39 patients (71%) underwent RA-assisted LM-PCI with use of a mechanical support device. The median largest burr size used was 1.5 mm. The mean number of LM stents implanted was 0.95 +/- 0.3. The mean LM stent diameter and length were 3.7 +/- 0.3 mm and 15.8 +/- 7.5 mm, respectively. Intravascular ulttasound was used to assess vessel size and stent apposition in 20 patients (36.0%). Angiographic success was obtained in all patients (100%). Conclusion. Despite technical challenges, RA of the LM coronary artery can be performed safely and is associated with a high rate of angiographic success.
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页码:101 / 106
页数:6
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