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Comparison of Doppler ultrasonography and high-definition oscillometry for blood pressure measurements in healthy awake dogs

Valérie ChetboulUnité de Cardiologie d'Alfort, Unité Mixte de Recherche INSERM U955, Ecole Nationale Vétérinaire d'Alfort, 94 704 Maisons-Alfort cedex, France; and Unité Mixte de Recherche 181 INRA, ENVT, Physiopathologie et Toxicologie Expérimentales

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Renaud TissierUnité Mixte de Recherche INSERM U955, Ecole Nationale Vétérinaire d'Alfort, 94 704 Maisons-Alfort cedex, France; and Unité Mixte de Recherche 181 INRA, ENVT, Physiopathologie et Toxicologie Expérimentales, Unité de Pharmacie-Toxicologie, Ecole Nationale Vétérinaire d'Alfort, 94 704 Maisons-Alfort cedex, France; and Unité Mixte de Recherche 181 INRA, ENVT, Physiopathologie et Toxicologie Expérimentales

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Vassiliki GouniUnité de Cardiologie d'Alfort, Ecole Nationale Vétérinaire d'Alfort, 94 704 Maisons-Alfort cedex, France; and Unité Mixte de Recherche 181 INRA, ENVT, Physiopathologie et Toxicologie Expérimentales

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Virginie de AlmeidaUnité de Pathologie Médicale, Ecole Nationale Vétérinaire d'Alfort, 94 704 Maisons-Alfort cedex, France; and Unité Mixte de Recherche 181 INRA, ENVT, Physiopathologie et Toxicologie Expérimentales

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Hervé P. LefebvreDépartement des Sciences Cliniques, Ecole Nationale Vétérinaire de Toulouse, 23 chemin des Capelles, BP 87614, F31076 Toulouse cedex 03, France

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Didier ConcordetDépartement des Sciences Cliniques, Ecole Nationale Vétérinaire de Toulouse, 23 chemin des Capelles, BP 87614, F31076 Toulouse cedex 03, France

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Nathalie JametUnité de Pathologie Médicale, Ecole Nationale Vétérinaire d'Alfort, 94 704 Maisons-Alfort cedex, France; and Unité Mixte de Recherche 181 INRA, ENVT, Physiopathologie et Toxicologie Expérimentales

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Carolina Carlos SampedranoUnité de Cardiologie d'Alfort, Ecole Nationale Vétérinaire d'Alfort, 94 704 Maisons-Alfort cedex, France; and Unité Mixte de Recherche 181 INRA, ENVT, Physiopathologie et Toxicologie Expérimentales

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François SerresUnité de Cardiologie d'Alfort, Ecole Nationale Vétérinaire d'Alfort, 94 704 Maisons-Alfort cedex, France; and Unité Mixte de Recherche 181 INRA, ENVT, Physiopathologie et Toxicologie Expérimentales

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Jean-Louis PouchelonUnité de Cardiologie d'Alfort, Unité Mixte de Recherche INSERM U955, Ecole Nationale Vétérinaire d'Alfort, 94 704 Maisons-Alfort cedex, France; and Unité Mixte de Recherche 181 INRA, ENVT, Physiopathologie et Toxicologie Expérimentales

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Abstract

Objective—To determine the intra- and interobserver variability of systolic arterial pressure (SAP) and diastolic arterial pressure (DAP) measurements obtained with 2 indirect methods in awake dogs and percentage of successful measurements.

Animals—6 healthy conscious adult dogs.

Procedures—4 observers with different levels of training measured SAP and DAP on 4 days by use of Doppler ultrasonography (DU) and high-definition oscillometry (HDO). The examinations were randomized. Measurements for each technique were recorded 5 consecutive times, and mean values (total, 720 measurements) were used for statistical analysis.

Results—All within- and between-day coefficients of variation (CVs) for SAP were < 15% irrespective of the observer or method (HDO, 3.6% to 14.1%; DU, 4.1% to 12.4%). Conversely, half the CVs for DAP were > 15% with the highest within- and between-day CVs obtained by the least experienced observer by use of DU (19.5% and 25.9%, respectively). All attempts with HDO were successful, whereas DAP could not be measured by use of DU by the least experienced observer in 17% of attempts.

Conclusions and Clinical Relevance—SAP may be assessed in healthy dogs by use of DU and HDO with good repeatability and reproducibility after a short period of training. Conversely, the variability of DAP is higher and longer training is required to assess DAP via DU than via HDO.

Abstract

Objective—To determine the intra- and interobserver variability of systolic arterial pressure (SAP) and diastolic arterial pressure (DAP) measurements obtained with 2 indirect methods in awake dogs and percentage of successful measurements.

Animals—6 healthy conscious adult dogs.

Procedures—4 observers with different levels of training measured SAP and DAP on 4 days by use of Doppler ultrasonography (DU) and high-definition oscillometry (HDO). The examinations were randomized. Measurements for each technique were recorded 5 consecutive times, and mean values (total, 720 measurements) were used for statistical analysis.

Results—All within- and between-day coefficients of variation (CVs) for SAP were < 15% irrespective of the observer or method (HDO, 3.6% to 14.1%; DU, 4.1% to 12.4%). Conversely, half the CVs for DAP were > 15% with the highest within- and between-day CVs obtained by the least experienced observer by use of DU (19.5% and 25.9%, respectively). All attempts with HDO were successful, whereas DAP could not be measured by use of DU by the least experienced observer in 17% of attempts.

Conclusions and Clinical Relevance—SAP may be assessed in healthy dogs by use of DU and HDO with good repeatability and reproducibility after a short period of training. Conversely, the variability of DAP is higher and longer training is required to assess DAP via DU than via HDO.

Contributor Notes

The authors thank Scil Animal Care Company, Altorf, France for loan of the high-definition oscillometry device.

Address correspondence to Dr. Chetboul (vchetboul@vet-alfort.fr).