Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 429

The DOI matches its Crossref record; 17 of the 17 references it cites were found in a registry or an index.

The Mitral Annulus Disjunction Arrhythmic Syndrome

Open access
Dejgaard, Lars A., Skjølsvik, Eystein T., Lie, Øyvind H., Ribe, Margareth, Stokke, Mathis K., Hegbom, Finn, Scheirlynck, Esther S., Gjertsen, Erik, Andresen, Kristoffer, Helle-Valle, Thomas M., Hopp, Einar, Edvardsen, Thor, Haugaa, Kristina H.·2018·Journal of the American College of Cardiology

Abstract

BACKGROUND: Mitral annulus disjunction (MAD) is an abnormal atrial displacement of the mitral valve leaflet hinge point. MAD has been associated with mitral valve prolapse (MVP) and sudden cardiac death. OBJECTIVES: The purpose of this study was to describe the clinical presentation, MAD morphology, association with MVP, and ventricular arrhythmias in patients with MAD. METHODS: The authors clinically examined patients with MAD. By echocardiography, the authors assessed the presence of MVP and measured MAD distance in parasternal long axis. Using cardiac magnetic resonance (CMR), the authors assessed circumferential MAD in the annular plane, longitudinal MAD distance, and myocardial fibrosis. Aborted cardiac arrest and sustained ventricular tachycardia were defined as severe arrhythmic events. RESULTS: The authors included 116 patients with MAD (age 49 ± 15 years; 60% female). Palpitations were the most common symptom (71%). Severe arrhythmic events occurred in 14 (12%) patients. Longitudinal MAD distance measured by CMR was 3.0 mm (interquartile range [IQR]: 0 to 7.0 mm) and circumferential MAD was 150° (IQR: 90° to 210°). Patients with severe arrhythmic events were younger (age 37 ± 13 years vs. 51 ± 14 years; p = 0.001), had lower ejection fraction (51 ± 5% vs. 57 ± 7%; p = 0.002) and had more frequently papillary muscle fibrosis (4 [36%] vs. 6 [9%]; p = 0.03). MVP was evident in 90 (78%) patients and was not associated with ventricular arrhythmia. CONCLUSIONS: Ventricular arrhythmias were frequent in patients with MAD. A total of 26 (22%) patients with MAD did not have MVP, and MVP was not associated with arrhythmic events, indicating MAD itself as an arrhythmogenic entity. MAD was detected around a large part of the mitral annulus circumference and was interspersed with normal tissue.

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.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.jacc.2018.07.070

Cites

17 of 17 references verified0 citation errors · 0 not checkable

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.

A few free checks a day · papers already verified open instantly · results are public

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

Show all 17 references

Cited by

See all 429

Metadata

Authors
Dejgaard, L. A., Skjølsvik, E. T., Lie, Ø. H., Ribe, M., Stokke, M. K., Hegbom, F., Scheirlynck, E. S., Gjertsen, E., Andresen, K., Helle-Valle, T. M., Hopp, E., Edvardsen, T., & Haugaa, K. H.
Venue
Journal of the American College of Cardiology
Publisher
Elsevier BV
Published
2018-10
Volume
72
Issue
14
Pages
1600-1609
ISSN
0735-1097 (ISSN-L)
OpenAlex
W2891096905
Cited by
429
References
17
FWCI
23.22
Type
journal article
Language
en
Open access
hybrid

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: The Mitral Annulus Disjunction Arrhythmic Syndrome. https://app.cochat.ai/papers/10.1016/j.jacc.2018.07.070
The paper
Dejgaard, L. A., Skjølsvik, E. T., Lie, Ø. H., Ribe, M., Stokke, M. K., Hegbom, F., Scheirlynck, E. S., Gjertsen, E., Andresen, K., Helle-Valle, T. M., Hopp, E., Edvardsen, T., & Haugaa, K. H. (2018). The Mitral Annulus Disjunction Arrhythmic Syndrome. Journal of the American College of Cardiology. https://doi.org/10.1016/j.jacc.2018.07.070

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.