Pulmonary Arterial Hypertension

Chetboul, Valérie

doi:10.1016/b978-0-323-31650-7.00014-4

Cited by 2 publications

(3 citation statements)

References 23 publications

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“…Echocardiography evaluation was performed using the Esaote MyLab Gamma® device (Genoa, Italy) with two sectoral transducers (1-4 MHz and 3-11 MHz). Echocardiography was performed according to the standards recommended by the Echocardiography Committee of the Specialty of Cardiology, American College of Veterinary Internal Medicine, with modifications suggested by Chetboul (2016).…”

Section: Methodsmentioning

confidence: 99%

Evaluation of the right ventricular function in dogs with brachycephalic syndrome before and after rhinoplasty

et al. 2021

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Brachycephalic dogs are usually affected by primary and secondary anatomical changes in the airways that contribute to the brachycephalic syndrome. Chronically, these changes contribute to an increase in pulmonary arterial pressure and right cardiac overload (cor pulmonale). The right cardiac function in 17 dogs with brachycephalic syndrome was assessed using echocardiography before, and at 30 and 60 days after rhinoplasty. The maximum pulmonary systolic flow velocity, the pressure gradient between the AP and RV (GrFP), the right ventricular systolic function (tricuspid ring systolic excursion (TAPSE), the variation of the right ventricular area (FAC), the velocity of the systolic displacement of the right ventricular myocardium (S') by tissue Doppler) and right ventricular diastolic function (transtricuspid flow and the relationship between the E and A waves, evaluation of the E' and A' waves using tissue Doppler of the free wall of the right ventricle) were evaluated. The right ventricular fractional area, velocity, and pressure gradient of pulmonary arterial flow showed the best sensitivity in these analyses. The present study reinforces the concept that obstructions in the anterior airways contribute to pulmonary hypoxia. However, the correction of these obstructions proved to be beneficial in the reduction of right heart overload.

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Section: Methodsmentioning

confidence: 99%

Evaluation of the right ventricular function in dogs with brachycephalic syndrome before and after rhinoplasty

et al. 2021

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“…Echocardiography is used for the diagnosis of PH in practice 9–11 . It is used to estimate the systolic pressure of the PA from tricuspid regurgitation (TR).…”

Section: Introductionmentioning

confidence: 99%

“…It is used to estimate the systolic pressure of the PA from tricuspid regurgitation (TR). In addition, the presence of right ventricular hypertrophy, a flattened interventricular septum, an enlarged PA, and an increased diastolic PA pressure derived from the pressure of a regurgitant jet at the pulmonic valve can support a diagnosis of PH 9,10 . Radiography plays an important role in the assessment of changes in size and shape of the heart and pulmonary arteries and veins, and detection of pulmonary edema in dogs with MR 12–14 .…”

Section: Introductionmentioning

confidence: 99%

Caudal pulmonary artery to vein ratio on radiography can predict pulmonary hypertension in dogs with mitral regurgitation

Lee

Choi

2022

Vet Radiology Ultrasound

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Pulmonary hypertension (PH) is an important predictor of poor outcomes in dogs with mitral regurgitation (MR). The feasibility of radiography to predict PH in dogs with MR is unknown. This retrospective, observational, and analytic study aimed to identify a radiographic parameter to predict PH in dogs with MR. A total of 302 dogs diagnosed with MR on echocardiography were enrolled. Medical record and radiographic findings such as the size of the main pulmonary artery, left atrium, left ventricle, and right chamber, and cranial and caudal pulmonary arteries and veins were evaluated according to the presence of PH. The diameters of the cranial and caudal pulmonary vessels were compared to the fourth rib and the ninth rib, respectively, and the ratio of the pulmonary artery to the corresponding vein (CdPA/CdPV) was calculated. Pulmonary hypertension was diagnosed in 77 dogs (25.5%) and the prevalence of PH increased with MR grade. The CdPA/CdPV was significantly higher (P < 0.001) in the presence of PH. Multivariate analysis showed that the CdPA/CdPV was the only independent radiographic parameter that had a significant association with PH in dogs with MR (P = 0.028). The cut‐off value of the CdPA/CdPV = 1.10 showed 90.6% specificity and 31.1% sensitivity for detecting PH in dogs with MR. In dogs with MR, PH can be predicted with high specificity when the caudal pulmonary artery is 1.1 times larger than the corresponding vein on radiographs.

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Pulmonary Arterial Hypertension

Cited by 2 publications

References 23 publications

Evaluation of the right ventricular function in dogs with brachycephalic syndrome before and after rhinoplasty

Evaluation of the right ventricular function in dogs with brachycephalic syndrome before and after rhinoplasty

Caudal pulmonary artery to vein ratio on radiography can predict pulmonary hypertension in dogs with mitral regurgitation

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