Transverse Right Ventricle Strain and Strain Rate Assessed by 2-Dimensional Speckle Tracking Echocardiography in Dogs with Pulmonary Hypertension
Right ventricular (RV) strain analysis using 2-dimensional speckle tracking echocardiography (2D STE) permits practitioners to assess regional and global deformation of the myocardium. Recently, assessment of the longitudinal right ventricle (RV) strain and strain rate using 2D STE has been reported...
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| Format: | Article |
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MDPI AG
2020-02-01
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| Series: | Veterinary Sciences |
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| Online Access: | https://www.mdpi.com/2306-7381/7/1/19 |
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| author | Domenico Caivano Mark Rishniw Francesco Birettoni Vasilica-Flory Petrescu Francesco Porciello |
| author_facet | Domenico Caivano Mark Rishniw Francesco Birettoni Vasilica-Flory Petrescu Francesco Porciello |
| author_sort | Domenico Caivano |
| collection | DOAJ |
| description | Right ventricular (RV) strain analysis using 2-dimensional speckle tracking echocardiography (2D STE) permits practitioners to assess regional and global deformation of the myocardium. Recently, assessment of the longitudinal right ventricle (RV) strain and strain rate using 2D STE has been reported in dogs. Although longitudinal deformation is the dominant component of the RV systole, RV myocardial fibers of the superficial layer are oriented circumferentially and these contribute to the RV pump function (radial deformation). Because this strain component has not been investigated in dogs, we have assessed radial RV strain and strain rate using 2D STE in healthy dogs and dogs with pulmonary hypertension (PH). We have recruited 74 dogs (40 healthy dogs and 34 dogs with PH) in which we have analyzed radial RV free wall strain and strain rate using Xstrain<sup>TM</sup> software. We have used the left apical 4-chamber view optimized for the RV for analysis of the radial strain and strain rate variables (Xstrain<sup>TM</sup> software denoted radial strain as “transverse”). Seven dogs were excluded during the analysis for low quality images. Transverse strain and strain rate obtained in healthy dogs showed no relationship with heart rate, body weight or age (r<sup>2</sup> < 0.09 and <i>p </i>> 0.05 for all variables). Moreover, no relationship between transverse strain/strain rate variables and left atrial-to-aortic ratios was observed (r<sup>2</sup> < 0.06 and <i>p </i>= 0.2, for both). Transverse strain and strain rate obtained in dogs with PH, showed weak negative relationships with tricuspid regurgitation velocity (r<sup>2</sup> < 0.25 and <i>p</i> = 0.006, for both). Transverse RV strain and strain rate using 2D STE is feasible in most dogs and decrease with worsening of the PH, but these advanced echocardiographic indices do not help in identifying dogs with PH. |
| first_indexed | 2024-12-20T08:56:13Z |
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| issn | 2306-7381 |
| language | English |
| last_indexed | 2024-12-20T08:56:13Z |
| publishDate | 2020-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Veterinary Sciences |
| spelling | doaj.art-f132692b98f241c0b8b0be02743303622022-12-21T19:46:00ZengMDPI AGVeterinary Sciences2306-73812020-02-01711910.3390/vetsci7010019vetsci7010019Transverse Right Ventricle Strain and Strain Rate Assessed by 2-Dimensional Speckle Tracking Echocardiography in Dogs with Pulmonary HypertensionDomenico Caivano0Mark Rishniw1Francesco Birettoni2Vasilica-Flory Petrescu3Francesco Porciello4Department of Veterinary Medicine, University of Perugia, Via San Costanzo 4, 06126 Perugia, ItalyDepartment of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USADepartment of Veterinary Medicine, University of Perugia, Via San Costanzo 4, 06126 Perugia, ItalyDepartment of Veterinary Medicine, University of Perugia, Via San Costanzo 4, 06126 Perugia, ItalyDepartment of Veterinary Medicine, University of Perugia, Via San Costanzo 4, 06126 Perugia, ItalyRight ventricular (RV) strain analysis using 2-dimensional speckle tracking echocardiography (2D STE) permits practitioners to assess regional and global deformation of the myocardium. Recently, assessment of the longitudinal right ventricle (RV) strain and strain rate using 2D STE has been reported in dogs. Although longitudinal deformation is the dominant component of the RV systole, RV myocardial fibers of the superficial layer are oriented circumferentially and these contribute to the RV pump function (radial deformation). Because this strain component has not been investigated in dogs, we have assessed radial RV strain and strain rate using 2D STE in healthy dogs and dogs with pulmonary hypertension (PH). We have recruited 74 dogs (40 healthy dogs and 34 dogs with PH) in which we have analyzed radial RV free wall strain and strain rate using Xstrain<sup>TM</sup> software. We have used the left apical 4-chamber view optimized for the RV for analysis of the radial strain and strain rate variables (Xstrain<sup>TM</sup> software denoted radial strain as “transverse”). Seven dogs were excluded during the analysis for low quality images. Transverse strain and strain rate obtained in healthy dogs showed no relationship with heart rate, body weight or age (r<sup>2</sup> < 0.09 and <i>p </i>> 0.05 for all variables). Moreover, no relationship between transverse strain/strain rate variables and left atrial-to-aortic ratios was observed (r<sup>2</sup> < 0.06 and <i>p </i>= 0.2, for both). Transverse strain and strain rate obtained in dogs with PH, showed weak negative relationships with tricuspid regurgitation velocity (r<sup>2</sup> < 0.25 and <i>p</i> = 0.006, for both). Transverse RV strain and strain rate using 2D STE is feasible in most dogs and decrease with worsening of the PH, but these advanced echocardiographic indices do not help in identifying dogs with PH.https://www.mdpi.com/2306-7381/7/1/19echocardiographyright ventricular functioncardiaccanine |
| spellingShingle | Domenico Caivano Mark Rishniw Francesco Birettoni Vasilica-Flory Petrescu Francesco Porciello Transverse Right Ventricle Strain and Strain Rate Assessed by 2-Dimensional Speckle Tracking Echocardiography in Dogs with Pulmonary Hypertension Veterinary Sciences echocardiography right ventricular function cardiac canine |
| title | Transverse Right Ventricle Strain and Strain Rate Assessed by 2-Dimensional Speckle Tracking Echocardiography in Dogs with Pulmonary Hypertension |
| title_full | Transverse Right Ventricle Strain and Strain Rate Assessed by 2-Dimensional Speckle Tracking Echocardiography in Dogs with Pulmonary Hypertension |
| title_fullStr | Transverse Right Ventricle Strain and Strain Rate Assessed by 2-Dimensional Speckle Tracking Echocardiography in Dogs with Pulmonary Hypertension |
| title_full_unstemmed | Transverse Right Ventricle Strain and Strain Rate Assessed by 2-Dimensional Speckle Tracking Echocardiography in Dogs with Pulmonary Hypertension |
| title_short | Transverse Right Ventricle Strain and Strain Rate Assessed by 2-Dimensional Speckle Tracking Echocardiography in Dogs with Pulmonary Hypertension |
| title_sort | transverse right ventricle strain and strain rate assessed by 2 dimensional speckle tracking echocardiography in dogs with pulmonary hypertension |
| topic | echocardiography right ventricular function cardiac canine |
| url | https://www.mdpi.com/2306-7381/7/1/19 |
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