CBS 2019
CBSMD教育中心
中 文

Scientific Library

Abstract

Recommended Article

Intravascular ultrasound assessment of the effects of rotational atherectomy in calcified coronary artery lesions Coronary Physiology in the Cardiac Catheterization Laboratory Intravascular ultrasound guidance improves clinical outcomes during implantation of both first- and second-generation drug-eluting stents: a meta-analysis Impact of Percutaneous Revascularization on Exercise Hemodynamics in Patients With Stable Coronary Disease Diagnosis and management of acute deep vein thrombosis: a joint consensus document from the European Society of Cardiology working groups of aorta and peripheral vascular diseases and pulmonary circulation and right ventricular function Percutaneous coronary intervention versus coronary artery bypass grafting in patients with three-vessel or left main coronary artery disease: 10-year follow-up of the multicentre randomised controlled SYNTAX trial Determinants and Impact of Heart Failure Readmission Following Transcatheter Aortic Valve Replacement Prognostic Implication of Thermodilution Coronary Flow Reserve in Patients Undergoing Fractional Flow Reserve Measurement
|<<... 179 180 181 182 183 184 185 ...>>|

Original Research2018 Sep;34(9):1365-1371.

JOURNAL：Int J Cardiovasc Imaging. Article Link

Intravascular ultrasound assessment of the effects of rotational atherectomy in calcified coronary artery lesions

Kim SS, Yamamoto MH, Maehara A et al. Keywords: Calcified lesions; Intravascular ultrasound; Rotational atherectomy

ABSTRACT

We sought to clarify intravascular ultrasound (IVUS) features of rotational atherectomy (RA) of calcified lesions. IVUS was performed post-RA and post-stent in 38 lesions and analyzed every 1 mm. Pre-intervention IVUS was performed when the IVUS catheter crossed the lesion (n = 11). Calcium Index was average calcium angle multiplied by calcium length. We compared lowest (n = 13), middle (n = 13), and highest (n = 12) Calcium Index tertiles. Reverberations (multiple reflections from calcium) with a concave-shaped lumen in the post-RA IVUS were considered to represent RA-related calcium modification. Newly visible perivascular tissue through a previously solid arc of calcium in the post-stent IVUS was also evaluated. Comparing the pre and post-RA IVUS, maximum reverberation angle, and length increased significantly after RA (angle, from 45° [31, 67] to 96° [50, 148], p = 0.003; length, from 4.0 mm [2.0, 6.0] to 8.0 mm [4.0, 14.0], p = 0.005). In the post-RA IVUS, reverberations had a larger angle in the middle and highest Calcium Index tertiles (lowest, 91° [64, 133]; middle, 135° [107, 201]; highest, 150° [93, 208], p = 0.03). Post-stent newly visible perivascular tissue was more frequent in the middle and highest Calcium Index tertiles (lowest, 30.8%; middle, 69.2%; highest, 75.0%, p = 0.049). Minimum stent area was similar after calcium modification by RA irrespective of the severity of the Calcium Index (lowest, 6.7 mm2 [5.7, 8.9]; middle, 5.6 mm2 [4.9, 6.8]; highest, 6.7 mm2 [5.9, 8.2], p = 0.2). Greater calcium modification by RA occurs in severely calcified lesions with smaller lumen diameters to mitigate against stent underexpansion.

>CBS CBS 2019

> CBS 2019 REGISTRATION

> CBS 2019 PROGRAM

> CBS 2019 CALL FOR SCIENCE

> CBS 2019 SPOTLIGHTS

 CBSMD

> CBSMD WEBSITE REGISTRATION

> EDUCATION CENTER

> RECOMMANDED PAPER

> TOP 10 RESEARCH PAPER

> PRE-READING

CBS 2019 CBS 2019 FACULTY Education Resource CBSMD Scientific Library
Copyright ⓒ CBS MD Nanjing China. All rights reserved. 京ICP备16025898号-11
联系我们| Top