The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.
Aortic Plaque Morphology and Vascular Events: A Follow-up Study in Patients With Ischemic Stroke
Abstract
Background Atherosclerotic disease of the aortic arch has been found to be associated with the risk of ischemic stroke. We have shown that atherosclerotic plaques ≥4 mm in thickness in the ascending aorta and proximal arch detected by transesophageal echocardiography are a risk factor for ischemic stroke. The purpose of this study was to evaluate the impact, if any, of plaque morphology (ulceration, hypoechoic plaques or calcification) on the risk of subsequent vascular events. Methods and Results We followed for a period of 2 to 4 years, a cohort of 334 patients 60 years or older who were consecutively admitted with brain infarction and who had transesophageal echocardiography. The risk of vascular events in patients with plaques in the aortic arch according to the presence of surface ulceration, calcifications, and sessile or mobile thrombus was estimated during a total of 788 person-years of follow-up. Hypoechoic plaques, calcifications, and ulceration were more frequently found in patients with plaques ≥4 mm as compared with those with plaques <4 mm. The presence of ulceration did not increase the relative risk of vascular events in patients with plaque ≥4 mm (the relative risk was 4.3 [ P <.001] in those with ulceration and 5.7 [ P <.001]) in those without ulceration. The lack of calcification did increase the risk of vascular events in patients with plaque ≥4 mm. The highest relative risk of events was found among the patients with noncalcified plaques (relative risk, 10.3; 95% confidence interval, 4.2 to 25.2; P <.001). The risk of events was systematically higher in patients without calcifications than in patients with calcifications regardless of what other morphological features were considered. Conclusions In patients with brain infarction, the risk associated with aortic plaque thickness (≥4 mm) is markedly increased by the absence of plaque calcifications. These findings are important for the design of therapeutic trials in such patients.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Falk, E., Shah, P. K., & Fuster, V. (1995) · Circulation · doi:10.1161/01.cir.92.3.657 · Cited by 3,536
Intimal plus medial thickness of the arterial wall: a direct measurement with ultrasound imaging.
Pignoli, P., Tremoli, E., Poli, A., Oreste, P., & Paoletti, R. (1986) · Circulation · doi:10.1161/01.cir.74.6.1399 · Cited by 2,404
Atherosclerotic Disease of the Aortic Arch and the Risk of Ischemic Stroke
Amarenco, P., Cohen, A., Tzourio, C., Bertrand, B., Hommel, M., Besson, G., Chauvel, C., Touboul, P.-J., & Bousser, M.-G. (1994) · New England Journal of Medicine · doi:10.1056/nejm199412013312202 · Cited by 1,008
Self-citationToussaint, J.-F., LaMuraglia, G. M., Southern, J. F., Fuster, V., & Kantor, H. L. (1996) · Circulation · doi:10.1161/01.cir.94.5.932 · Cited by 668
The Prevalence of Ulcerated Plaques in the Aortic Arch in Patients with Stroke
Amarengo, P., Duyckaerts, C., Tzourio, C., Hénin, D., Bousser, M.-G., & Hauw, J.-J. (1992) · New England Journal of Medicine · doi:10.1056/nejm199201233260402 · Cited by 577
Self-citationAtherosclerotic Disease of the Aortic Arch as a Risk Factor for Recurrent Ischemic Stroke
(1996) · New England Journal of Medicine · doi:10.1056/nejm199605093341902 · Cited by 575
Recognition and embolic potential of intraaortic atherosclerotic debris
Karalis, D. G., Chandrasekaran, K., Victor, M. F., Ross, J. J., & Mintz, G. S. (1991) · Journal of the American College of Cardiology · doi:10.1016/0735-1097(91)90706-f · Cited by 444
Atherosclerotic Disease of the Aortic Arch as a Risk Factor for Recurrent Ischemic Stroke
(1996) · New England Journal of Medicine · doi:10.1056/nejm199611073351913 · Cited by 427
High risk for vascular events in patients with protruding aortic atheromas: A prospective study
Tunick, P. A., Rosenzweig, B. P., Katz, E. S., Freedberg, R. S., Perez, J. L., & Kronzon, I. (1994) · Journal of the American College of Cardiology · doi:10.1016/0735-1097(94)90595-9 · Cited by 308
Proximal aortic atheroma. An independent risk factor for cerebral ischemia.
Jones, E. F., Kálmán, J., Calafiore, P. A., Tonkin, A. M., & Donnan, G. A. (1995) · PubMed · Cited by 240
Cited by
Kernan, W. N., Ovbiagele, B., Black, H. R., Bravata, D. M., Chimowitz, M. I., Ezekowitz, M. D., Fang, M. C., Fisher, M., Furie, K. L., Heck, D. V., et al. (2014) · Stroke · doi:10.1161/str.0000000000000024 · Cited by 5,170
Kleindorfer, D. O., Towfighi, A., Chaturvedi, S., Cockroft, K. M., Gutierrez, J., Lombardi-Hill, D., Kamel, H., Kernan, W. N., Kittner, S. J., Leira, E. C., et al. (2021) · Stroke · doi:10.1161/str.0000000000000375 · Cited by 3,237
WRITING GROUP MEMBERS, Hiratzka, L. F., Bakris, G. L., Beckman, J. A., Bersin, R. M., Carr, V. F., Casey, D. E., Eagle, K. A., Hermann, L. K., Isselbacher, E. M., et al. (2010) · Circulation · doi:10.1161/cir.0b013e3181d4739e · Cited by 2,289
Goldstein, S. A., Evangelista, A., Abbara, S., Arai, A., Asch, F. M., Badano, L. P., Bolen, M. A., Connolly, H. M., Cuéllar-Calàbria, H., Czerny, M., et al. (2015) · Journal of the American Society of Echocardiography · doi:10.1016/j.echo.2014.11.015 · Cited by 641
Johnsen, S. H., Mathiesen, E. B., Joakimsen, O., Stensland, E., Wilsgaard, T., Løchen, M.-L., Njølstad, I., & Arnesen, E. (2007) · Stroke · doi:10.1161/strokeaha.107.487264 · Cited by 398
Metadata
- Authors
- Cohen, A., Tzourio, C., Bertrand, B., Chauvel, C., Bousser, M.-G., & Amarenco, P.
- Venue
- Circulation
- Published
- 1997-12-02
- Volume
- 96
- Issue
- 11
- Pages
- 3838-3841
- ISSN
- 0009-7322 (ISSN-L)
- 1524-4539
- OpenAlex
- W2052303206
- Cited by
- 278
- References
- 18
- FWCI
- 9.41
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Aortic Plaque Morphology and Vascular Events: A Follow-up Study in Patients With Ischemic Stroke. https://app.cochat.ai/papers/10.1161/01.cir.96.11.3838
- The paper
- Cohen, A., Tzourio, C., Bertrand, B., Chauvel, C., Bousser, M.-G., & Amarenco, P. (1997). Aortic Plaque Morphology and Vascular Events: A Follow-up Study in Patients With Ischemic Stroke. Circulation. https://doi.org/10.1161/01.cir.96.11.3838
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.