The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Influence of the Genotype on the Clinical Course of the Long-QT Syndrome
Open accessAbstract
BACKGROUND: The congenital long-QT syndrome, caused by mutations in cardiac potassium-channel genes (KVLQT1 at the LQT1 locus and HERG at the LQT2 locus) and the sodium-channel gene (SCN5A at the LQT3 locus), has distinct repolarization patterns on electrocardiography, but it is not known whether the genotype influences the clinical course of the disease. METHODS: We determined the genotypes of 541 of 1378 members of 38 families enrolled in the International Long-QT Syndrome Registry: 112 had mutations at the LQT1 locus, 72 had mutations at the LQT2 locus, and 62 had mutations at the LQT3 locus. We determined the cumulative probability and lethality of cardiac events (syncope, aborted cardiac arrest, or sudden death) occurring from birth through the age of 40 years according to genotype in the 246 gene carriers and in all 1378 members of the families studied. RESULTS: The frequency of cardiac events was higher among subjects with mutations at the LQT1 locus (63 percent) or the LQT2 locus (46 percent) than among subjects with mutations at the LQT3 locus (18 percent) (P<0.001 for the comparison of all three groups). In a multivariate Cox analysis, the genotype and the QT interval corrected for heart rate were significant independent predictors of a first cardiac event. The cumulative mortality through the age of 40 among members of the three groups of families studied was similar; however, the likelihood of dying during a cardiac event was significantly higher (P<0.001) among families with mutations at the LQT3 locus (20 percent) than among those with mutations at the LQT1 locus (4 percent) or the LQT2 locus (4 percent). CONCLUSIONS: The genotype of the long-QT syndrome influences the clinical course. The risk of cardiac events is significantly higher among subjects with mutations at the LQT1 or LQT2 locus than among those with mutations at the LQT3 locus. Although cumulative mortality is similar regardless of the genotype, the percentage of cardiac events that are lethal is significantly higher in families with mutations at the LQT3 locus.
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
Regression Models and Life-Tables
Cox, D. R. (1972) · Journal of the Royal Statistical Society Series B: Statistical Methodology · doi:10.1111/j.2517-6161.1972.tb00899.x · Cited by 39,793
ECG T-wave patterns in genetically distinct forms of the hereditary long QT syndrome
Moss, A. J., Zareba, W., Benhorin, J., Locati, E. H., Hall, W. J., Robinson, J. L., Schwartz, P. J., Towbin, J. A., Vincent, G. M., Lehmann, M. H., et al. (1995) · Circulation · doi:10.1161/01.cir.92.10.2929 · Cited by 616
Risk of cardiac events in family members of patients with long QT syndrome
Zareba, W., Moss, A. J., le Cessie, S., Locati, E. H., Robinson, J. L., Hall, W. J., & Andrews, M. L. (1995) · Journal of the American College of Cardiology · doi:10.1016/0735-1097(95)60383-2 · Cited by 142
Self-citation
Cited by
ACC/AHA/HRS 2008 guidelines for device-based therapy of cardiac rhythm abnormalities
Epstein, A. E., DiMarco, J. P., Ellenbogen, K. A., Estes, N. A. M., Freedman, R. A., Gettes, L. S., Gillinov, A. M., Gregoratos, G., Hammill, S. C., Hayes, D. L., et al. (2008) · Journal of the American College of Cardiology · doi:10.1016/j.jacc.2008.02.032 · Cited by 2,546
Schwartz, P. J., Priori, S. G., Spazzolini, C., Moss, A. J., Vincent, G. M., Napolitano, C., Denjoy, I., Guicheney, P., Breithardt, G., Keating, M. T., et al. (2001) · Circulation · doi:10.1161/01.cir.103.1.89 · Cited by 1,779
Self-citationZipes, D. P., Camm, A. J., Borggrefe, M., Buxton, A. E., Chaitman, B., Fromer, M., Gregoratos, G., Klein, G., Moss, A. J., Myerburg, R. J., et al. (2006) · Circulation · doi:10.1161/circulationaha.106.178233 · Cited by 1,080
Self-citationDrew, B. J., Ackerman, M. J., Funk, M., Gibler, W. B., Kligfield, P., Menon, V., Philippides, G. J., Roden, D. M., & Zareba, W. (2010) · Circulation · doi:10.1161/circulationaha.109.192704 · Cited by 821
Maron, B. J., Chaitman, B. R., Ackerman, M. J., Bayés de Luna, A., Corrado, D., Crosson, J. E., Deal, B. J., Driscoll, D. J., Estes, N. A. M., Araújo, C. G. S., et al. (2004) · Circulation · doi:10.1161/01.cir.0000128363.85581.e1 · Cited by 591
Self-citation
Metadata
- Authors
- Zareba, W., Moss, A. J., Schwartz, P. J., Vincent, G. M., Robinson, J. L., Priori, S. G., Benhorin, J., Locati, E. H., Towbin, J. A., Keating, M. T., Lehmann, M. H., Hall, W. J., Andrews, M. L., Napolitano, C., Timothy, K., Zhang, L., Medina, A., & MacCluer, J. W.
- Venue
- New England Journal of Medicine
- Publisher
- Massachusetts Medical Society
- Published
- 1998-10
- Volume
- 339
- Issue
- 14
- Pages
- 960-965
- ISSN
- 0028-4793 (ISSN-L)
- 1533-4406
- OpenAlex
- W2334363451
- Cited by
- 754
- References
- 3
- FWCI
- 33.65
- Type
- journal article
- Language
- en
- Open access
- bronze
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: Influence of the Genotype on the Clinical Course of the Long-QT Syndrome. https://app.cochat.ai/papers/10.1056/nejm199810013391404
- The paper
- Zareba, W., Moss, A. J., Schwartz, P. J., Vincent, G. M., Robinson, J. L., Priori, S. G., Benhorin, J., Locati, E. H., Towbin, J. A., Keating, M. T., Lehmann, M. H., Hall, W. J., Andrews, M. L., Napolitano, C., Timothy, K., Zhang, L., Medina, A., & MacCluer, J. W. (1998). Influence of the Genotype on the Clinical Course of the Long-QT Syndrome. New England Journal of Medicine. https://doi.org/10.1056/nejm199810013391404
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.