The DOI matches its Crossref record; 37 of the 37 references it cites were found in a registry or an index.
Not only randomized controlled trials, but also case series should be considered in systematic reviews of rapidly developing technologies
Abstract
Objective Case series can influence clinical practice but are often omitted from systematic reviews. We evaluated the contribution of case series to a systematic review of radiofrequency catheter ablation (RFCA) for treatment of atrial fibrillation (AF).Study design and setting Analysis of the results of a systematic review based on a search of 25 electronic databases and Internet sources.Results We included eight controlled trials and 53 case series. Case series provided most patients longest follow-up and data on adverse events and complications. Rates of freedom from arrhythmia were comparable between case series, RFCA arms of controlled trials, and a survey of RFCA centers.Conclusion In the case of RFCA for AF, the case series make a useful contribution to the systematic review. Inclusion of case series can increase the evidence base and strengthen the credibility of a review of an emerging health technology. These advantages must be balanced against the risk of bias associated with the lack of a control group, potential publication bias, overrepresentation of results from specialist centers, and overlap of patients across series. Specification in the review protocol of inclusion criteria for outcomes and quality criteria is recommended to make optimum use of case series.
Overview
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
In the citing paper
“Sixteen articles (17%) provided recommendations on the key item “protocol development” (Table 3), [29–44] with publication dates between 1994 and 2015 (median year of publication 2009).”
From Methods to systematically review and meta-analyse observational studies: a systematic scoping review of recommendations (2018) · cites this paper as [32]
In the citing paper
“Thirty-nine articles (42%) made recommendations on the assessment of quality and risk of bias of individual studies, [12, 16, 29, 30, 32–35, 37, 38, 43, 47–50, 52–54, 56, 64–66, 70, 71, 73, 75, 77, 82, 84–94] with publication dates between 1994 and 2016 (median year of publication 2009).”
From Methods to systematically review and meta-analyse observational studies: a systematic scoping review of recommendations (2018) · cites this paper as [32]
Citations
Cites
Publication bias in clinical research
Easterbrook, P. J., Gopalan, R., Berlin, J. A., & Matthews, D. R. (1991) · The Lancet · doi:10.1016/0140-6736(91)90201-y · Cited by 3,109
Cappato, R., Calkins, H., Chen, S.-A., Davies, W., Iesaka, Y., Kalman, J., Kim, Y.-H., Klein, G., Natale, A., Packer, D., et al. (2010) · Circulation Arrhythmia and Electrophysiology · doi:10.1161/circep.109.859116 · Cited by 2,852
Nademanee, K., McKenzie, J. P., Kosar, E. M., Schwab, M., Sunsaneewitayakul, B., Vasavakul, T., Khunnawat, C., & Ngarmukos, T. (2004) · Journal of the American College of Cardiology · doi:10.1016/j.jacc.2003.12.054 · Cited by 2,004
Cappato, R., Calkins, H. G., Chen, S., Davies, W. D., Iesaka, Y., Kalman, J. M., Kim, Y.-H., Klein, G. J., Packer, D. L., & Skanes, A. C. (2005) · Circulation · doi:10.1161/01.cir.0000157153.30978.67 · Cited by 1,303
Crow, R. A., Gage, H., Hampson, S., Hart, J., Kimber, A., Storey, L., & Thomas, H. (2002) · Health Technology Assessment · doi:10.3310/hta6320 · Cited by 1,267
Wazni, O. M., Marrouche, N. F., Martin, D. O., Verma, A., Bhargava, M., Saliba, W., Bash, D., Schweikert, R., Brachmann, J., Gunther, J., et al. (2005) · JAMA · doi:10.1001/jama.293.21.2634 · Cited by 1,121
Circumferential Pulmonary-Vein Ablation for Chronic Atrial Fibrillation
Oral, H., Pappone, C., Chugh, A., Good, E. D., Bogun, F. M., Pelosi, F., Bates, E., Lehmann, M. H., Vicedomini, G., Augello, G., et al. (2006) · New England Journal of Medicine · doi:10.1056/nejmoa050955 · Cited by 975
Catheter Ablation for Atrial Fibrillation in Congestive Heart Failure
Hsu, L., Jaı̈s, P., Sanders, P., Garrigue, S., Hocini, M., Sacher, F., Takahashi, Y., Rotter, M., Pasquié, J., Scavée, C., et al. (2004) · New England Journal of Medicine · doi:10.1056/nejmoa041018 · Cited by 890
Pappone, C., Rosanio, S., Augello, G., Gallus, G., Vicedomini, G., Mazzone, P., Gulletta, S., Gugliotta, F., Pappone, A., Santinelli, V., et al. (2003) · Journal of the American College of Cardiology · doi:10.1016/s0735-1097(03)00577-1 · Cited by 779
Randomised trials in surgery: problems and possible solutions
McCulloch, P. G., Taylor, I., Sasako, M., Lovett, B., & Griffin, D. (2002) · BMJ · doi:10.1136/bmj.324.7351.1448 · Cited by 761
Research works printed but not linked: 2
- Reeves BC, Vardulaki KA, Tsang VTC, Bennett-Lloyd BD, O'Riordan PA. A systematic review of case series of paediatric cardiac surgery. 8th Annual Cochrane Colloquium. Cape Town, South Africa; 2000.
- Deisenhofer, 2004, Long term outcome after segmental electric isolation of pulmonary veins in paroxysmal atrial fibrillation and implications for re-ablation procedures [abstract], Eur Heart J, 25, 277
Cited by
Sorted by citations
Jansen, J. P., Fleurence, R., Devine, B., Itzler, R. F., Barrett, A., Hawkins, N., Lee, K., Boersma, C., Annemans, L., & Cappelleri, J. C. (2011) · Value in Health · doi:10.1016/j.jval.2011.04.002 · Cited by 1,029
Kassam, Z., Lee, C. H., Yuan, Y., & Hunt, R. H. (2013) · American Journal of Gastroenterology · doi:10.1038/ajg.2013.59 · Cited by 904
Ganesan, A. N., Shipp, N. J., Brooks, A. G., Kuklik, P., Lau, D. H., Lim, H. S., Sullivan, T., Roberts‐Thomson, K. C., & Sanders, P. (2013) · Journal of the American Heart Association · doi:10.1161/jaha.112.004549 · Cited by 800
“Study quality was assessed using a modified version of quality assessment criteria for case series.(6)”
MethodCammarota, G., Ianiro, G., & Gasbarrini, A. (2014) · Journal of Clinical Gastroenterology · doi:10.1097/mcg.0000000000000046 · Cited by 428
Mueller, M., D’Addario, M., Egger, M., Cevallos, M., Dekkers, O., Mugglin, C., & Scott, P. (2018) · BMC Medical Research Methodology · doi:10.1186/s12874-018-0495-9 · Cited by 400
Metadata
- Authors
- Chambers, D., Rodgers, M., & Woolacott, N.
- Affiliations
- University of York (GB)
- Corresponding author
- Chambers, Duncan
- Venue
- Journal of Clinical Epidemiology
- Publisher
- Elsevier BV
- Published
- 2009-12
- Volume
- 62
- Issue
- 12
- Pages
- 1253-1260.e4
- ISSN
- 0895-4356 (ISSN-L)
- OpenAlex
- W1995030115
- Cited by
- 121
- References
- 37
- Citations by year
- 2025: 6 · 2024: 1 · 2023: 4 · 2022: 7 · 2021: 7 · 2020: 13 · 2019: 15 · 2018: 12 · 2017: 5 · 2016: 10 · 2015: 9 · 2014: 10 · 2013: 15 · 2012: 2
- FWCI
- 0.15
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Clinical Epidemiology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Social Sciences › Decision Sciences › Statistics, Probability and Uncertainty › Meta-analysis and systematic reviews
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Atrial Fibrillation Management and Outcomes
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Clinical practice guidelines implementation
- Keywords
- case series, systematic review methodology, radiofrequency catheter ablation, atrial fibrillation, emerging health technologies, evidence base, risk of bias, publication bias, arrhythmia recurrence, adverse events
- MeSH terms
- Atrial Fibrillation, Humans, Quality Assurance, Health Care, Review Literature as Topic, Technology Assessment, Biomedical, Randomized Controlled Trials as Topic, Catheter Ablation, Evidence-Based Medicine
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