| Measurement of the AH and HV interval and His bundle duration: interobserver and intraobserver variation. | |
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MedLine Citation:
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PMID: 3962896 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Conduction system intervals measured during intracardiac electrophysiologic testing influence clinical decisions. To evaluate measurement reliability, interobserver and intraobserver variation for AH, HV, and His bundle duration measurements from 50 patients were evaluated. The square of the correlation coefficient (r2) was used as the index for measurement reliability. Three investigators performed the measurements. The r2 for interobserver variation of the AH interval ranged from 0.55 to 0.68 and for intraobserver variability from 0.60 to 0.88. The standard error of measurement based on intraobserver measurements ranged from 10.2 to 18.0 ms. The r2 for interobserver variation of the HV interval ranged from 0.42 to 0.63 and for intraobserver variation from 0.489 to 0.73. The standard error of measurement was 6.2 to 9.9 ms. For the His bundle duration, the r2 for interobserver variation ranged from 0.42 to 0.52 and for intraobserver variation from 0.19 to 0.52. The standard error of measurement was 3.1 to 5.2 ms. Although there is measurement variation for AH and HV intervals, their use in conjunction with the history and the surface electrocardiogram to make clinical decisions is appropriate. His bundle duration cannot be measured reliably using the standard recording technique and should not be used for clinical decision making. |
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Authors:
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J H McAnulty; W P Nichol; C Morris; L Nichol; S H Rahimtoola |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: The American journal of cardiology Volume: 57 ISSN: 0002-9149 ISO Abbreviation: Am. J. Cardiol. Publication Date: 1986 Apr |
Date Detail:
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Created Date: 1986-05-13 Completed Date: 1986-05-13 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0207277 Medline TA: Am J Cardiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 960-3 Citation Subset: AIM; IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Bundle of His
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physiopathology Electrophysiology Heart Block / physiopathology* Heart Conduction System / physiopathology* Humans |
| Grant Support | |
ID/Acronym/Agency:
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HL06336/HL/NHLBI NIH HHS; HL21527/HL/NHLBI NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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