eISSN: 1897-4295
ISSN: 1734-9338
Advances in Interventional Cardiology/Postępy w Kardiologii Interwencyjnej
Current issue Archive Manuscripts accepted About the journal Editorial board Abstracting and indexing Subscription Contact Instructions for authors Publication charge Ethical standards and procedures
Editorial System
Submit your Manuscript
SCImago Journal & Country Rank
Search
Editorial Policies
Sarajevo Declaration on Integrity and Visibility of Scholarly Publications
2/2013
vol. 9
 
Share:
Send email
Share:
abstract:

Original paper
Relation between coronary plaque calcium deposits as described by computed tomography coronary angiography and acute results of stent deployment as assessed by intravascular ultrasound

Jerzy Pregowski
,
Jan Jastrzebski
,
Cezary Kępka
,
Mariusz Kruk
,
Michał Ciszewski
,
Rafał Wolny
,
Joanna Zalewska
,
Zbigniew Chmielak
,
Maciej Karcz
,
Adam Witkowski

Postep Kardiol Inter 2013; 9, 2 (32): 115–120
DOI: https://doi.org/10.5114/pwki.2013.35444
Online publish date: 2013/06/17
View full text Get citation
 
Introduction: The findings from intravascular ultrasound studies on the impact of calcium deposits on the results of stent implantation are conflicting.

Aim: To evaluate whether calcium deposits as assessed by (CTCA) influence results of stent deployment.

Material and methods: The study population comprised 60 patients (43 male; age 64.2 ±8.6 years) who underwent CTCA before stent implantation. Lesion calcium score, total calcium length, and maximal area and maximal thickness of calcium deposits within the lesion segment were assessed. Plaques were divided into those with calcium score  median (group 1), calcium score < median (group 2), and without calcium (group 3). Intravascular ultrasound (IVUS) was performed after attainment of optimal angiographic results of the stent procedure. Focal and diffuse stent expansion was defined as either minimum stent area (MSA) or mean stent area over the length of the stent divided by reference lumen area.

Results: The proximal reference segments of lesions with higher calcium score contained a larger plaque burden (47 ±12% vs. 41 ±9% vs. 34 ±18%, p = 0.02) – respectively for groups 1, 2, and 3. Positive correlation was observed between lesion calcium score and frequency of post-dilation (R = 0.28, p = 0.03). There was no difference in focal stent expansion (71 ±14% vs. 65 ±15% vs.71 ±15%, p = 0.3) or diffuse stent expansion (92 ±30% vs. 85 ±30% vs. 93 ±38%, p = 0.7) comparing groups 1, 2, and 3. Lesion calcium score, total length of calcium, and maximum area and thickness of calcium deposits did not correlate with focal or diffuse stent expansion.

Conclusions: Lesions with a higher CTCA calcium score had larger reference plaque burden after stent implantation and more likely required post-dilation, but final stent expansion as assessed by IVUS was not affected by the amount of CTCA calcium provided an angiographically optimal result was achieved.
keywords:

computed tomography coronary angiography, calcium deposits
Termedia
About us Contact
Copyright notice Privacy policy Advertising policy Contact us
Quick links
Journals Books eBooks Events
© 2024 Termedia Sp. z o.o.
Developed by Bentus.