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M-Mode Echocardiographic Measurements of Interventricular Septum, Left Ventricular Internal Diameter, and Left Ventricular Free-Wall Thickness in Normal Horses-A Meta-Analytical Study. Animals (Basel) 2023; 13:ani13050809. [PMID: 36899666 PMCID: PMC10000052 DOI: 10.3390/ani13050809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 02/11/2023] [Accepted: 02/15/2023] [Indexed: 03/12/2023] Open
Abstract
The purpose of this study was to provide a systematic meta-analysis on echocardiographic measurements in normal Thoroughbred and Standardbred horses. The current systematic meta-analysis followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). All the available published papers on the reference values of echocardiographic assessment via M-mode echocardiography were searched, and fifteen studies were finally selected for analysis. In both fixed and random effect, the confidence interval (CI) for the interventricular septum (IVS) was 2.8-3.1 and 4.7-7.5; for the left ventricular free-wall (LVFW) thickness, it was 2.9-3.2 and 4.2-6.7; and for the left ventricular internal diameter (LVID), it was -5.0-4.6 and -10.0--6.7, respectively. For IVS, the Q statistic, I-squared, and tau-squared were 925.3, 98.1, and 7.9, respectively. Similarly, for LVFW, all the effects were on the positive side of zero, with a range of 1.3-68.1. The CI indicated a significant variation among the studies (fixed, 2.9-3.2; random, 4.2-6.7). The z-values of LVFW for fixed and random effects were, respectively, 41.1 (p < 0.001) and 8.5 (p < 0.001). However, the Q statistic was 886.6 (p < 0.001). Moreover, the I-squared was 98.08, and the tau-squared was 6.6. By contrast, the effects of LVID fell on the negative side of zero, (2.8-83.9). The present meta-analysis provides an overview of the echocardiographic measurements of cardiac diameters in healthy Thoroughbred and Standardbred horses. The meta-analysis indicates variations in results among different studies. This result should be considered when evaluating a horse for heart disease and each case should be evaluated independently.
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Wiegel PS, Nolte I, Mach R, Freise F, Bach JP. Reference ranges for standard-echocardiography in pugs and impact of clinical severity of Brachycephalic Obstructive Airway Syndrome (BOAS) on echocardiographic parameters. BMC Vet Res 2022; 18:282. [PMID: 35854376 PMCID: PMC9297600 DOI: 10.1186/s12917-022-03348-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 06/15/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Echocardiographic measurements may be influenced by breed-specific characteristics. Therefore, this study aims to establish reference values for standard echocardiographic measurements in pugs by investigating the influence of age, sex, heart rate, body weight and Brachycephalic Obstructive Airway Syndrome (BOAS). Sixty-two privately owned pugs underwent physical examination, blood sample collection, non-invasive blood pressure measurements and echocardiography. Influences of independent variables on echocardiographic measurements were examined using a multiple linear regression analysis model. For the entire study population, 95% prediction intervals were generated. Further, reference ranges for subcategories of clinical severities of BOAS were provided. Selected echocardiographic measurements of pugs were compared to reference values of previous studies generated from various breeds. RESULTS In the study, a total of fifty-one privately owned pugs aged between two and 10 years were included for establishing reference ranges. Mainly body weight, but also age, sex and heart rate had influence on several echocardiographic parameters. The clinical grading of BOAS was conducted in 42 pugs. Except for pulmonic peak velocity (Pvel), which declined with increasing severity of BOAS, clinical symptoms of upper airway disease did not have significant impact on echocardiographic measurement results. Significant deviations, however, of left ventricular (LV) internal dimension (LVID), interventricular septum (IVS), LV posterior wall (LVPW), and tricuspid annular plane systolic motion excursion (TAPSE) compared to interbreed reference values were observed. CONCLUSIONS Breed-specific reference ranges for echocardiographic values with special regard to BOAS are provided to enable a more accurate assessment of cardiac health in pugs.
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Affiliation(s)
- Pia Saskia Wiegel
- Clinic for Small Animals, University of Veterinary Medicine Hannover, Bünteweg 9, 30559, Hannover, Germany
| | - Ingo Nolte
- Clinic for Small Animals, University of Veterinary Medicine Hannover, Bünteweg 9, 30559, Hannover, Germany.
| | - Rebekka Mach
- Clinic for Small Animals, University of Veterinary Medicine Hannover, Bünteweg 9, 30559, Hannover, Germany
| | - Fritjof Freise
- Institute for Biometry, Epidemiology and Information Processing, University of Veterinary Medicine Hannover, Bünteweg 2, 30559, Hannover, Germany
| | - Jan-Peter Bach
- Clinic for Small Animals, University of Veterinary Medicine Hannover, Bünteweg 9, 30559, Hannover, Germany
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Evaluation of new and old biomarkers in dogs with degenerative mitral valve disease. BMC Vet Res 2022; 18:256. [PMID: 35780161 PMCID: PMC9250216 DOI: 10.1186/s12917-022-03343-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/06/2022] [Indexed: 11/10/2022] Open
Abstract
Background Dogs with degenerative mitral valve disease are commonly presented to small animal clinicians. Diagnosis, clinical staging, and therapeutic design are based on a combination of clinical examination, radiography, and echocardiography. To support diagnosis and clinical monitoring, a multi-marker-based approach would be conceivable. The aim of this study was to investigate the suitability of Galectin-3 and interleukin-1 receptor-like 1 protein (ST2) in dogs with degenerative mitral valve disease in accordance with N-terminal-prohormone-B-type natriuretic peptide (NT-proBNP) and cardiac troponin I (cTnI). For this purpose, serum concentrations of Galectin-3 and ST2 of 64 dogs with different stages of mitral valve disease and 21 dogs without cardiac disease were analyzed at the first examination and six months later. Echocardiography, blood cell count and clinical chemistry were performed and established biomarkers NT-proBNP and cTnI were measured additionally. Differences in the biomarker concentrations between all groups at both timepoints and the change in biomarker concentrations from first to second evaluation was investigated. Furthermore, correlations of each biomarker, between biomarkers and echocardiographic measurements, were calculated. Finally, the receiver-operating characteristic curve and the area under the curve analysis were performed to differentiate between disease stages and controls. Results Serum concentrations of Galectin-3 and ST2 were not statistically different between canine patients in the respective stages of mitral valve disease or in comparison to dogs in the control group at any timepoint. A significant increase in ST2 concentrations from the baseline to the follow-up examination was observed in dogs classified as stage B1 and the control group. The concentrations of NT-proBNP and cTnI in stage C dogs were significantly increased in comparison to the other groups. Conclusions In this study, no relation between Galectin-3 and ST2 levels to the presence or stage of mitral valve disease could be detected. Nevertheless, considering the increase in ST2 concentrations from the first to second measurement, its value on monitoring disease progress could be feasible. In agreement with previous studies, NT-proBNP and cTnI have once more proven their utility in assessing disease severity. The approach of examining new cardiac biomarkers in dogs is still worth pursuing.
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Vatne L, Dickson D, Tidholm A, Caivano D, Rishniw M. The effects of activity, body weight, sex and age on echocardiographic values in English setter dogs. J Vet Cardiol 2021; 37:26-41. [PMID: 34517274 DOI: 10.1016/j.jvc.2021.08.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 07/22/2021] [Accepted: 08/09/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Breed-specific reference intervals improve echocardiographic interpretation and thereby reduce misdiagnoses, especially in athletic breeds. OBJECTIVES The objectives of the study were to examine transthoracic echocardiographic values in healthy adult English setter dogs and determine the effects of activity, body weight, sex and age on these values. ANIMALS, MATERIALS AND METHODS One hundred and one adult English setter dogs, recruited from local veterinary clinics and from the Norwegian English setter club, underwent routine transthoracic echocardiography. The population was stratified into two groups based on the reported level of activity. The effects of activity level, body weight, sex and age on echocardiographic variables were examined. Results were compared with published data from other breeds and from a pre-existing species-wide allometric model. RESULTS Of the 100 dogs between 19 months and 10 years of age included in the study, 72 were reported as very active and 28 as less active. Echocardiographic intervals were calculated for body size-independent echocardiographic variables. The upper limits of the intervals for left-atrial-to-aortic ratios and normalised left ventricular volumes exceeded those of various, previously published studies of other breeds. Normalised left ventricular dimensions exceeded published allometric 95th percentile upper reference values in 13% of dogs in diastole and 32% of dogs in systole. More active dogs had larger cardiac dimensions than less active dogs; however, the activity level did not predict echocardiographic variables when included in a multiple regression model. CONCLUSIONS The study provides breed specific transthoracic echocardiographic values for English setter dogs, thereby contributing to improve diagnostic assessment of cardiac health in this breed.
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Affiliation(s)
- L Vatne
- AniCura Oslo Animal Hospital, Hoffsveien 70C, 0377 Oslo, Norway.
| | | | - A Tidholm
- AniCura Albano Animal Hospital, Rinkebyvagan 21B, 182 36 Danderyd, Sweden
| | - D Caivano
- Department of Veterinary Medicine, University of Perugia, Via San Costanzo 4, 06126 Perugia, Italy
| | - M Rishniw
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA
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Patata V, Vezzosi T, Marchesotti F, Domenech O. Echocardiographic parameters in 50 healthy English bulldogs: preliminary reference intervals. J Vet Cardiol 2021; 36:55-63. [PMID: 34111807 DOI: 10.1016/j.jvc.2021.04.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 04/27/2021] [Accepted: 04/29/2021] [Indexed: 11/30/2022]
Abstract
INTRODUCTION/OBJECTIVES The objective of the study was to provide echocardiographic reference intervals for English bulldogs (EBs) and to assess if age, sex, body weight (BW), and heart rate have an influence on echocardiographic variables. ANIMALS We prospectively enrolled client-owned EBs that were considered healthy based on unremarkable history, normal physical examination, six-lead electrocardiography, and transthoracic echocardiography. MATERIALS AND METHODS Breed-related reference intervals were provided, and associations between age, sex, BW, and heart rate and echocardiographic variables were tested using a multivariate analysis. Allometric scales were generated for echocardiographic variables showing correlation with BW. Moreover, echocardiographic variables obtained in our population of EBs and previous published reference ranges were compared. RESULTS Echocardiographic reference intervals were generated from 50 healthy adult EBs. As per the multivariate analysis, left atrial diameter (p = 0.015), left ventricular internal end diastolic diameter (p = 0.002), aortic valve annulus (p = 0.032), and pulmonary valve annulus (p = 0.017) resulted influenced by BW, and reference intervals were generated using allometric scales. Our study suggests that EBs tend to have a smaller aortic root and sphericity index than other breeds. In addition, EBs seem to have smaller indexed left ventricular volumes and higher left ventricular ejection fraction than boxers and Doberman. CONCLUSION Preliminary reference intervals in the EBs are reported, which might be helpful for accurate echocardiographic interpretation and screening purposes in this breed.
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Affiliation(s)
- V Patata
- Anicura Istituto Veterinario Novara, Strada Provinciale 9, Granozzo con Monticello, Novara, 28060, Italy
| | - T Vezzosi
- Anicura Istituto Veterinario Novara, Strada Provinciale 9, Granozzo con Monticello, Novara, 28060, Italy; Department of Veterinary Sciences, University of Pisa, Via Livornese Lato Monte, Pisa, 56122, Italy.
| | - F Marchesotti
- Anicura Istituto Veterinario Novara, Strada Provinciale 9, Granozzo con Monticello, Novara, 28060, Italy
| | - O Domenech
- Anicura Istituto Veterinario Novara, Strada Provinciale 9, Granozzo con Monticello, Novara, 28060, Italy
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Vezzosi T, Ghinelli R, Ferrari P, Porciello F. Reference intervals for transthoracic echocardiography in the American Staffordshire Terrier. J Vet Med Sci 2021; 83:656-660. [PMID: 33563862 PMCID: PMC8111344 DOI: 10.1292/jvms.20-0622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This study reports the echocardiographic reference intervals in the American Staffordshire Terrier (AST). The echocardiographic variables obtained in 57 healthy adult AST were compared with published data from the general canine population and other breeds. In the AST, the left ventricular volumes were lower than values reported in Boxers and Dobermans (P<0.0001), but higher than in small breeds (P<0.0001). The left ventricular ejection fraction was higher than Boxers and Dobermans (P<0.0001), but lower than small breed dogs (P=0.027). The aortic peak velocity values were similar to Boxers (P=0.55) but higher than the general canine population (P<0.0001). The reference intervals presented in this study are clinically useful for an accurate echocardiographic interpretation and screening in the AST.
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Affiliation(s)
- Tommaso Vezzosi
- Department of Veterinary Sciences, University of Pisa, Via Livornese, 56122 Pisa, Italy.,Anicura Istituto Veterinario di Novara, Strada Provinciale 9, 28060 Novara, Italy
| | | | - Paolo Ferrari
- Clinica Veterinaria Orobica, Viale Isonzo 2/E, 24052 Bergamo, Italy
| | - Francesco Porciello
- Department of Veterinary Medicine, University of Perugia, Via S. Costanzo 4, 06126 Perugia, Italy
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Two-dimensional echocardiographic left- atrial-to-aortic ratio in healthy adult dogs: a reexamination of reference intervals. J Vet Cardiol 2019; 26:29-38. [PMID: 31794915 DOI: 10.1016/j.jvc.2019.11.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 10/14/2019] [Accepted: 11/05/2019] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Left atrial-to-aortic ratios (LA:Ao) provide a body weight independent estimate of left atrial size. However, reference intervals were established with small sample populations and for only single points in the cardiac cycle. More robust reference intervals are warranted. ANIMALS Two hundred and thirty eight apparently healthy adult dogs. MATERIALS AND METHODS LA:Ao measurements were obtained at 3 points in the cardiac cycle - maximal dimension, at the closing of the aortic valve (or just before opening of the mitral valve) (LA:AoMAX); minimal dimension, at the onset of the QRS complex (LA:AoMIN) and at the onset of atrial systole (LA:AoP). LA:AoMAX was obtained from right parasternal short and long-axis views, and LA:AoMIN and LA:AoP were obtained from the right parasternal short-axis view. Dogs were excluded from analyses of reference intervals if weight-based left atrial and left ventricular diastolic dimensions exceeded reference interval limits. Effects of breed and body weight on LA:Ao measurements were examined. RESULTS Upper LA:Ao reference limits mostly agreed with previously published limits, although 10% of dogs had LA:AoMAX in the short-axis view exceeding 1.6. These dogs had smaller aortae than expected for their body weight, and included mostly boxers and English setters. Reference limits for LA:AoMIN and LA:AoP were smaller than those for LA:AoMAX in either view. No LA:Ao measurements were associated with body weight. CONCLUSIONS Reference limits were either confirmed or established for the common two-dimensional methods of assessing relative left atrial size in healthy dogs. Clinicians should use caution when diagnosing mild left atrial enlargement in certain dog breeds and should examine the weight-based aortic dimensions in such cases.
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Carvalho EB, Ramos IPR, Nascimento AFS, Brasil GV, Mello DB, Oti M, Sammeth M, Bahia MT, Campos de Carvalho AC, Carvalho AB. Echocardiographic Measurements in a Preclinical Model of Chronic Chagasic Cardiomyopathy in Dogs: Validation and Reproducibility. Front Cell Infect Microbiol 2019; 9:332. [PMID: 31616643 PMCID: PMC6768978 DOI: 10.3389/fcimb.2019.00332] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 09/10/2019] [Indexed: 02/05/2023] Open
Abstract
Background: The failure to translate preclinical results to the clinical setting is the rule, not the exception. One reason that is frequently overlooked is whether the animal model reproduces distinctive features of human disease. Another is the reproducibility of the method used to measure treatment effects in preclinical studies. Left ventricular (LV) function improvement is the most common endpoint in preclinical cardiovascular disease studies, while echocardiography is the most frequently used method to evaluate LV function. In this work, we conducted a robust echocardiographic evaluation of LV size and function in dogs chronically infected by Trypanosoma cruzi. Methods and Results: Echocardiography was performed blindly by two distinct observers in mongrel dogs before and between 6 and 9 months post infection. Parameters analyzed included end-systolic volume (ESV), end-diastolic volume (EDV), ejection fraction (EF), and fractional shortening (FS). We observed a significant LVEF and FS reduction in infected animals compared to controls, with no significant variation in volumes. However, the effect of chronic infection in systolic function was quite variable, with EF ranging from 17 to 66%. Using the cut-off value of EF ≤ 40%, established for dilated cardiomyopathy (DCM) in dogs, only 28% of the infected dogs were affected by the chronic infection. Conclusions: The canine model of CCC mimics human disease, reproducing the percentage of individuals that develop heart failure during the chronic infection. It is thus mandatory to establish inclusion criteria in the experimental design of canine preclinical studies to account for the variable effect that chronic infection has on systolic function.
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Affiliation(s)
- Eduardo B. Carvalho
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Isalira P. R. Ramos
- National Center for Structural Biology and Bioimaging, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Guilherme V. Brasil
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Debora B. Mello
- National Center for Structural Biology and Bioimaging, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Martin Oti
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Michael Sammeth
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Maria T. Bahia
- School of Medicine, Federal University of Ouro Preto, Ouro Preto, Brazil
| | - Antonio C. Campos de Carvalho
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- National Center for Structural Biology and Bioimaging, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- National Institute for Science and Technology in Regenerative Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Adriana B. Carvalho
- Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- National Center for Structural Biology and Bioimaging, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
- National Institute for Science and Technology in Regenerative Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Visser LC, Ciccozzi MM, Sintov DJ, Sharpe AN. Echocardiographic quantitation of left heart size and function in 122 healthy dogs: A prospective study proposing reference intervals and assessing repeatability. J Vet Intern Med 2019; 33:1909-1920. [PMID: 31313382 PMCID: PMC6766555 DOI: 10.1111/jvim.15562] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 07/01/2019] [Indexed: 12/21/2022] Open
Abstract
Background Broadly applicable reference intervals (RIs) for measurements of left atrial (LA) and left ventricular (LV) size and function generated prospectively using statistically appropriate methods are limited. Objectives To generate body size‐independent RIs for linear, area, and volume measurements of LA size and LV size and function. Animals Healthy adult dogs (n = 122) of variable size and somatotype. Methods Prospective study. All dogs underwent an echocardiogram performed by the same examiner. Effects of body weight, sex, age, and heart rate were evaluated by regression and correlation analyses. Scaling exponents and prediction intervals were generated for linear measurements using the allometric equation. After normalization to body weight, 95% RIs were determined using nonparametric methods with 2.5 and 97.5 percentiles serving as the lower and upper limits (each with 90% confidence intervals), respectively. Results Linear LA and LV measurements were strongly correlated (R2 ≥ 0.79) with body weight. Scaling exponents were close to the expected 1/3 (0.299‐0.392). Prediction intervals for linear measurements of LV chamber size were considerably narrower than previously reported. Weak correlations (r = −0.42 to −0.50) among LV fractional shortening, fractional area change, and ejection fraction and body weight were identified. No other meaningful relationships were identified between the measurements and sex, age, and heart rate. Conclusions and Clinical Importance Body size‐independent RIs for several linear, area, and volume measurements of LA and LV size and function were generated prospectively from a large and diverse reference population and are available for clinical use.
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Affiliation(s)
- Lance C Visser
- Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, California
| | - Marisa M Ciccozzi
- Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, California
| | - Daniel J Sintov
- Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, California
| | - Ashley N Sharpe
- Department of Medicine & Epidemiology, School of Veterinary Medicine, University of California, Davis, California
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Two-dimensional, long-axis echocardiographic ratios for assessment of left atrial and ventricular size in dogs. J Vet Cardiol 2018; 20:330-342. [DOI: 10.1016/j.jvc.2018.07.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 07/18/2018] [Accepted: 07/23/2018] [Indexed: 11/18/2022]
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Al-Haidar A, Moula N, Leroux A, Farnir F, Deleuze S, Sandersen C, Amory H. Reference values of two-dimensional and M-mode echocardiographic measurements as a function of body size in various equine breeds and in ponies. J Vet Cardiol 2017; 19:492-501. [DOI: 10.1016/j.jvc.2017.08.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 08/04/2017] [Accepted: 08/14/2017] [Indexed: 10/18/2022]
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Dickson D, Caivano D, Matos JN, Summerfield N, Rishniw M. Two-dimensional echocardiographic estimates of left atrial function in healthy dogs and dogs with myxomatous mitral valve disease. J Vet Cardiol 2017; 19:469-479. [PMID: 29111284 DOI: 10.1016/j.jvc.2017.09.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 08/28/2017] [Accepted: 09/11/2017] [Indexed: 10/18/2022]
Abstract
OBJECTIVES To provide reference intervals for 2-dimensional linear and area-based estimates of left atrial (LA) function in healthy dogs and to evaluate the ability of estimates of LA function to differentiate dogs with subclinical myxomatous mitral valve disease (MMVD) and similarly affected dogs with congestive heart failure (CHF). ANIMALS Fifty-two healthy adult dogs, 88 dogs with MMVD of varying severity. METHODS Linear and area measurements from 2-dimensional echocardiographs in both right parasternal long and short axis views optimized for the left atrium were used to derive estimates of LA active emptying fraction, passive emptying fraction, expansion index, and total fractional emptying. Differences for each estimate were compared between healthy and MMVD dogs (based on ACVIM classification), and between MMVD dogs with subclinical disease and CHF that had similar LA dimensions. Diagnostic utility at identifying CHF was examined for dogs with subclinical MMVD and CHF. Relationships with bodyweight were assessed. RESULTS All estimates of LA function decreased with increasing ACVIM stage of mitral valve disease (p<0.05) and showed negative relationships with increasing LA size (all r2 values < 0.2), except for LA passive emptying fraction, which did not differ or correlate with LA size (p=0.4). However, no index of LA function identified CHF better than measurements of LA size. Total LA fractional emptying and expansion index showed modest negative correlations with bodyweight. CONCLUSIONS Estimates of LA function worsen with worsening MMVD but fail to discriminate dogs with CHF from those with subclinical MMVD any better than simple estimates of LA size.
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Affiliation(s)
| | - Domenico Caivano
- Department of Veterinary Medicine, University of Perugia, Perugia, Italy.
| | - Jose Novo Matos
- Vetsuisse Faculty University of Zurich, Zurich, Switzerland.
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Dickson D, Shave R, Rishniw M, Harris J, Patteson M. Reference intervals for transthoracic echocardiography in the English springer spaniel: a prospective, longitudinal study. J Small Anim Pract 2016; 57:520-528. [DOI: 10.1111/jsap.12536] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 04/28/2016] [Accepted: 05/06/2016] [Indexed: 11/27/2022]
Affiliation(s)
| | - R. Shave
- Cardiff School of Sport; Cardiff Metropolitan University; Cardiff CF23 6XD
| | - M. Rishniw
- Veterinary Information Network; Davis CA 95616 USA
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Dickson D, Caivano D, Patteson M, Rishniw M. The times they are a-changin': Two-dimensional aortic valve measurements differ throughout diastole. J Vet Cardiol 2016; 18:15-25. [PMID: 26810488 DOI: 10.1016/j.jvc.2015.11.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Revised: 11/03/2015] [Accepted: 11/10/2015] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Diastolic aortic valve measurements are used to obtain weight-independent cardiac ratiometric indices. However, whether clinically important variations in valve measurements occur during diastole remains undetermined. ANIMALS One hundred sixty-three dogs and 40 cats; a mixture of healthy animals and patients with heart disease. MATERIALS AND METHODS Aortic valve diameter and area were measured at three time-points: early diastole {AoMAX}, during the P-wave {AoP} and at end-diastole {AoMIN}. Measurement beat-to-beat variability was determined. Difference plots were generated for each measurement pair. Aortic measurements were compared by repeated measures analysis of variance. RESULTS In dogs, normalised aortic diameters showed a fixed bias of approximately 14% for AoMAX-AoMIN, 6% for AoMAX-AoP and 8% for AoP-AoMIN. In cats, the aortic diameter and area biases were all less than 2.5% and less than 7% respectively. AoMAX was the largest measurement in 78% patients and AoMIN was the smallest measurement in 73% patients. In dogs, AoMAX > AoP > AoMIN (p < 0.0001). Median within-patient measurement variability was 5% for linear dimensions and 8% for area measurements in dogs and 4.5% for linear and 10.4% for area in cats. DISCUSSION Aortic measurements in dogs differ significantly throughout diastole, with Ao(A)MAX > Ao(A)P > Ao(A)MIN. These differences could clinically impact cardiac ratiometric indices. The difference in cats is less than the within-patient measurement variability and unlikely to be of clinical significance. CONCLUSIONS Operators should adopt a single diastolic time-point for measurement of the aorta to ensure consistency in measuring and reporting in echocardiography.
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Affiliation(s)
- D Dickson
- HeartVets, The Animal Hospital, Dursley, Gloucestershire, GL11 6AJ, UK.
| | - D Caivano
- Department of Clinical Sciences, School of Veterinary Medicine, University of Perugia, Perugia, Italy
| | - M Patteson
- HeartVets, The Animal Hospital, Dursley, Gloucestershire, GL11 6AJ, UK
| | - M Rishniw
- Department of Clinical Sciences, Cornell University, Ithaca, NY, USA
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Visser LC, Scansen BA, Schober KE, Bonagura JD. Echocardiographic assessment of right ventricular systolic function in conscious healthy dogs: Repeatability and reference intervals. J Vet Cardiol 2015; 17:83-96. [DOI: 10.1016/j.jvc.2014.10.003] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 09/29/2014] [Accepted: 10/21/2014] [Indexed: 01/01/2023]
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16
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Comparative study of 4 echocardiographic methods of left ventricular measurement in German Shepherd dogs. J Vet Cardiol 2014; 16:1-8. [DOI: 10.1016/j.jvc.2013.12.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Revised: 11/03/2013] [Accepted: 12/03/2013] [Indexed: 11/17/2022]
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Al-haidar A, Farnir F, Deleuze S, Sandersen C, Leroux A, Borde L, Cerri S, Amory H. Effect of breed, sex, age and body weight on echocardiographic measurements in the Equine species. Res Vet Sci 2013; 95:255-60. [DOI: 10.1016/j.rvsc.2013.02.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Revised: 01/17/2013] [Accepted: 02/22/2013] [Indexed: 10/27/2022]
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Georgiev R, Rishniw M, Ljungvall I, Summerfield N. Common two-dimensional echocardiographic estimates of aortic linear dimensions are interchangeable. J Vet Cardiol 2013; 15:131-8. [DOI: 10.1016/j.jvc.2013.02.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Revised: 02/18/2013] [Accepted: 02/24/2013] [Indexed: 10/26/2022]
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Pariaut R, Saelinger C, Strickland K, Beaufrère H, Reynolds C, Vila J. Tricuspid Annular Plane Systolic Excursion (TAPSE) in Dogs: Reference Values and Impact of Pulmonary Hypertension. J Vet Intern Med 2012; 26:1148-54. [DOI: 10.1111/j.1939-1676.2012.00981.x] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Revised: 05/22/2012] [Accepted: 06/26/2012] [Indexed: 11/30/2022] Open
Affiliation(s)
- R. Pariaut
- Department of Veterinary Clinical Sciences; LSU School of Veterinary Medicine; Baton Rouge; LA
| | - C. Saelinger
- Department of Veterinary Clinical Sciences; LSU School of Veterinary Medicine; Baton Rouge; LA
| | - K.N. Strickland
- Department of Veterinary Clinical Sciences; LSU School of Veterinary Medicine; Baton Rouge; LA
| | - H. Beaufrère
- Department of Veterinary Clinical Sciences; LSU School of Veterinary Medicine; Baton Rouge; LA
| | - C.A. Reynolds
- Department of Veterinary Clinical Sciences; LSU School of Veterinary Medicine; Baton Rouge; LA
| | - J. Vila
- Department of Veterinary Clinical Sciences; LSU School of Veterinary Medicine; Baton Rouge; LA
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Savarino P, Borgarelli M, Tarducci A, Crosara S, Bello NM, Margiocco ML. Diagnostic performance of P wave duration in the identification of left atrial enlargement in dogs. J Small Anim Pract 2012; 53:267-72. [DOI: 10.1111/j.1748-5827.2012.01200.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Locatelli C, Santini A, Bonometti GA, Palermo V, Scarpa P, Sala E, Brambilla PG. Echocardiographic values in clinically healthy adult dogue de Bordeaux dogs. J Small Anim Pract 2011; 52:246-53. [PMID: 21539569 DOI: 10.1111/j.1748-5827.2011.01055.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVES To assess the influence of body surface area, age and gender on echocardiographic parameters and to establish echocardiographic reference values for dogue de Bordeaux dogs. METHODS Thirty-nine healthy dogue de Bordeaux dogs of both sexes, older than one year, were recruited and 31 of these were included in the study. The classic linear regression model proved to be the best way to analyse the data. The reference limits of the echocardiographic measurements were calculated using the regression equations. The difference between the mean values of body surface area in both gender groups was evaluated by using one-way ANOVA. RESULTS A significant correlation was seen between several echocardiographic parameters and body surface area or body surface area and age, and high coefficients of determination (R2) were found. No effect of gender was detected on echocardiographic variables, except for the thickness of the left ventricular posterior wall at end diastole. CLINICAL SIGNIFICANCE The echocardiographic parameters related to body surface area, in the absence of correlation with other independent variables (gender and age) should be interpreted with caution because their variation could be significant for the presence of heart disease. The proposed statistical model allows estimation of echocardiographic parameters in dogue de Bordeaux dogs with different body surface areas and ages.
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Affiliation(s)
- C Locatelli
- Faculty of Veterinary Medicine, Department of Veterinary Clinical Science, University of Milan, Italy
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Pelosi A, Côté E, Eyster GE. Congenital coronary-pulmonary arterial shunt in a German shepherd dog: diagnosis and surgical correction. J Vet Cardiol 2011; 13:153-8. [PMID: 21636339 DOI: 10.1016/j.jvc.2011.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 03/07/2011] [Accepted: 03/18/2011] [Indexed: 01/08/2023]
Abstract
BACKGROUND A 10 week-old intact female German shepherd dog was examined because of a heart murmur. METHODS An echocardiogram revealed an extracardiac left-to-right shunt. An angiogram identified shunting between the aorta and the pulmonary artery in an unusual location. RESULTS Thoracotomy was performed to better identify and correct the lesion; a tubular shunt between the left coronary artery and the pulmonary artery was found and ligated in a closed-heart procedure. The murmur resolved immediately upon ligation and the dog's heart size normalized over a period of several months after surgery. CONCLUSION In the dog, surgical correction of a coronary artery-pulmonary artery shunt can be performed without complications and can be associated with reversal of cardiac remodeling.
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Affiliation(s)
- Augusta Pelosi
- College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA.
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