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dc.contributor.authorSánchez Salguero, Xavier*
dc.contributor.authorPrandi, David*
dc.contributor.authorLlabrés-Díaz, Francisco*
dc.contributor.authorManzanilla, Edgar G*
dc.contributor.authorBussadori, Claudio*
dc.date.accessioned2019-06-11T16:23:52Z
dc.date.available2019-06-11T16:23:52Z
dc.date.issued2018-12-17
dc.identifier.citationSalguero XS, Prandi D, Llabres-Diaz F, Manzanilla EG, Bussadori C. A radiographic measurement of left atrial size in dogs. Irish Veterinary Journal 2018;71; doi http://dx.doi.org/10.1186/s13620-018-0137-x.en_US
dc.identifier.urihttp://hdl.handle.net/11019/1668
dc.descriptionpeer-revieweden_US
dc.description.abstractBackground The dimensions of the left atrium in cases with mitral regurgitation are an indirect measurement of its severity. The objective of this study was to evaluate the value of a new radiographic measurement, the radiographic left atrial dimension (RLAD), for detecting left atrial enlargement (LAE) in dogs. Thirty one dogs without LAE and 46 dogs with LAE were recruited in a prospective fashion. Reference left atrium dimension was measured by standard left atrium to aorta ratio (LA/Ao) by 2D echocardiography. LAE was considered if LA/Ao > 1.6. Left atrium dimension was then quantified on lateral radiographs by measuring RLAD. Vertebral heart size (VHS) was measured and RLAD was obtained by drawing a line bisecting the 90 degrees angle defined by the long and short cardiac axes lines of the VHS, up to the dorsal edge of the left atrium and comparing its length to T4’s vertebral body length. The correlation of VHS and RLAD methods with LA/Ao was estimated, as well as their sensitivity and specificity for detecting LAE. Receiver Operating Characteristic (ROC) curves were used to estimate the optimal decision criteria for each method. Results A positive correlation was observed between RLAD and LA/Ao (r = 0.82). RLAD’s sensitivity and specificity for detecting LAE when evaluated at the optimal cut-off value, 1.8 vertebrae, were 93.5 and 96.8% respectively. RLAD showed high reproducibility and repeatability. Conclusion RLAD appears to be a clinically useful radiographic measurement for evaluating left atrial dimensions. RLAD would provide clinicians with a simple and cost-effective tool for evaluating and monitoring LAE.en_US
dc.language.isoenen_US
dc.publisherBiomed Centralen_US
dc.relation.ispartofseriesIrish Veterinary Journal;vol 71
dc.subjectDogen_US
dc.subjectLeft atrial sizeen_US
dc.subjectMitral valve diseaseen_US
dc.subjectRadiographic measurementen_US
dc.titleA radiographic measurement of left atrial size in dogsen_US
dc.typeArticleen_US
dc.date.updated2018-12-23T05:19:05Z
dc.language.rfc3066en
dc.rights.holderThe Author(s).
dc.identifier.doihttps://doi.org/10.1186/s13620-018-0137-x
refterms.dateFOA2019-06-11T16:23:53Z


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