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Geographic disparity in 10-year mortality after coronary artery revascularization in the SYNTAXES trial

Geographic disparity in 10-year mortality after coronary artery revascularization in the SYNTAXES trial
Geographic disparity in 10-year mortality after coronary artery revascularization in the SYNTAXES trial

Aims: to investigate geographic disparity in long-term mortality following revascularization in patients with complex coronary artery disease (CAD). 

Methods and results: the SYNTAXES trial randomized 1800 patients with three-vessel and/or left main CAD to percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and assessed their survival at 10 years. Patients were stratified according to the region of recruitment: North America (N-A, n = 245), Eastern Europe (E-E, n = 189), Northern Europe (N-E, n = 425), Southern Europe (S-E, n = 263), and Western Europe (W-E, n = 678), which also served as the reference group. Compared to W-E, patients were younger in E-E (62 vs 65 years, p < 0.001), and less frequently male in N-A (65.3% vs 79.6%, p < 0.001). Diabetes (16.0% vs 25.4%, p < 0.001) and peripheral vascular disease (6.8% vs 10.9%, p = 0.025) were less frequent in N-E than W-E. Ejection fraction was highest in W-E (62% vs 56%, p < 0.001). Compared to W-E, the mean anatomic SYNTAX score was higher in S-E (29 vs 31, p = 0.008) and lower in N-A (26, p < 0.001). Crude ten-year mortality was similar in N-A (31.6%), and W-E (30.7%), and significantly lower in E-E (22.5%, p = 0.041), N-E (21.9%, p = 0.003) and S-E (22.0%, p = 0.014). Compared to W-E, adjusted mortality in N-E (HR 0.85, p = 0.019) and S-E (HR 0.72, p = 0.043) remain significantly lower after adjustment for pre- and peri-procedural factors, but no significant interaction (P interaction = 0.728) between region and modality of revascularization was seen. 

Conclusion: in the era of globalization, knowledge, and understanding of geographic disparity are of paramount importance for the correct interpretation of global studies.

Complex coronary artery disease, Geographic disparity, Revascularization, Ten-year mortality
0167-5273
28-38
Kageyama, Shigetaka
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Serruys, Patrick W.
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Garg, Scot
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Ninomiya, Kai
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Masuda, Shinichiro
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Kotoku, Nozomi
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Colombo, Antonio
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Mack, Michael J.
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Banning, Adrian P.
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Morice, Marie-claude
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Witkowski, Adam
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Curzen, Nick
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Burzotta, Francesco
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James, Stefan
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Van Geuns, Robert-jan
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Davierwala, Piroze M.
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Holmes, David R.
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Wood, David A.
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Mcevoy, John William
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Onuma, Yoshinobu
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Kageyama, Shigetaka
e2a1ec5a-ecf4-44e6-98cd-a77f098be2a0
Serruys, Patrick W.
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Garg, Scot
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Ninomiya, Kai
f23e5be9-f68f-4bca-9a13-35d3b1f892a4
Masuda, Shinichiro
35af3b88-dce1-473e-bbd2-8575114b7938
Kotoku, Nozomi
234444a9-ab1b-425a-af18-1c87d9cb791e
Colombo, Antonio
4d0610e9-c0d7-42d8-bb47-421502b0bbe8
Mack, Michael J.
5fb155bd-62b4-46f4-b1ae-47f594673497
Banning, Adrian P.
63c9376f-08b6-4578-b036-4d6233545270
Morice, Marie-claude
8fad799e-b853-419c-a534-c570471dad6f
Witkowski, Adam
c0afc007-881d-48ec-a792-1030ef71c359
Curzen, Nick
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Burzotta, Francesco
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James, Stefan
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Van Geuns, Robert-jan
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Davierwala, Piroze M.
c748d037-998c-4cff-a808-3887c2ecc49d
Holmes, David R.
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Wood, David A.
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Mcevoy, John William
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Onuma, Yoshinobu
3bae88ea-1afa-43b2-bbd0-a68d72d78662

Kageyama, Shigetaka, Serruys, Patrick W., Garg, Scot, Ninomiya, Kai, Masuda, Shinichiro, Kotoku, Nozomi, Colombo, Antonio, Mack, Michael J., Banning, Adrian P., Morice, Marie-claude, Witkowski, Adam, Curzen, Nick, Burzotta, Francesco, James, Stefan, Van Geuns, Robert-jan, Davierwala, Piroze M., Holmes, David R., Wood, David A., Mcevoy, John William and Onuma, Yoshinobu (2022) Geographic disparity in 10-year mortality after coronary artery revascularization in the SYNTAXES trial. International Journal of Cardiology, 368, 28-38. (doi:10.1016/j.ijcard.2022.08.013).

Record type: Article

Abstract

Aims: to investigate geographic disparity in long-term mortality following revascularization in patients with complex coronary artery disease (CAD). 

Methods and results: the SYNTAXES trial randomized 1800 patients with three-vessel and/or left main CAD to percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and assessed their survival at 10 years. Patients were stratified according to the region of recruitment: North America (N-A, n = 245), Eastern Europe (E-E, n = 189), Northern Europe (N-E, n = 425), Southern Europe (S-E, n = 263), and Western Europe (W-E, n = 678), which also served as the reference group. Compared to W-E, patients were younger in E-E (62 vs 65 years, p < 0.001), and less frequently male in N-A (65.3% vs 79.6%, p < 0.001). Diabetes (16.0% vs 25.4%, p < 0.001) and peripheral vascular disease (6.8% vs 10.9%, p = 0.025) were less frequent in N-E than W-E. Ejection fraction was highest in W-E (62% vs 56%, p < 0.001). Compared to W-E, the mean anatomic SYNTAX score was higher in S-E (29 vs 31, p = 0.008) and lower in N-A (26, p < 0.001). Crude ten-year mortality was similar in N-A (31.6%), and W-E (30.7%), and significantly lower in E-E (22.5%, p = 0.041), N-E (21.9%, p = 0.003) and S-E (22.0%, p = 0.014). Compared to W-E, adjusted mortality in N-E (HR 0.85, p = 0.019) and S-E (HR 0.72, p = 0.043) remain significantly lower after adjustment for pre- and peri-procedural factors, but no significant interaction (P interaction = 0.728) between region and modality of revascularization was seen. 

Conclusion: in the era of globalization, knowledge, and understanding of geographic disparity are of paramount importance for the correct interpretation of global studies.

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Accepted/In Press date: 4 August 2022
e-pub ahead of print date: 6 August 2022
Published date: 1 December 2022
Additional Information: Funding Information: The SYNTAX Extended Survival study was supported by the German Foundation of Heart Research (Frankfurt am Main, Germany). The SYNTAX trial, during 0–5 years follow-up, was funded by Boston Scientific Corporation (Marlborough, MA, USA). Both sponsors had no role in the study design, data collection, data analyses, and interpretation of the study data, nor were involved in the decision to publish the final manuscript. The principal investigators and authors had complete scientific freedom. Publisher Copyright: © 2022 Elsevier B.V.
Keywords: Complex coronary artery disease, Geographic disparity, Revascularization, Ten-year mortality

Identifiers

Local EPrints ID: 470102
URI: http://eprints.soton.ac.uk/id/eprint/470102
ISSN: 0167-5273
PURE UUID: e00f7730-edd8-4275-b49b-e9c6925136f9
ORCID for Nick Curzen: ORCID iD orcid.org/0000-0001-9651-7829

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Date deposited: 03 Oct 2022 16:50
Last modified: 17 Mar 2024 07:28

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Contributors

Author: Shigetaka Kageyama
Author: Patrick W. Serruys
Author: Scot Garg
Author: Kai Ninomiya
Author: Shinichiro Masuda
Author: Nozomi Kotoku
Author: Antonio Colombo
Author: Michael J. Mack
Author: Adrian P. Banning
Author: Marie-claude Morice
Author: Adam Witkowski
Author: Nick Curzen ORCID iD
Author: Francesco Burzotta
Author: Stefan James
Author: Robert-jan Van Geuns
Author: Piroze M. Davierwala
Author: David R. Holmes
Author: David A. Wood
Author: John William Mcevoy
Author: Yoshinobu Onuma

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