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== Introduction ==
 
== Introduction ==
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==Signalment==
 
==Signalment==
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Some diseases predispose animals to secondary pulmonary hypertension. Predisposed breeds include brachycephalic dogs (chronic obstructive pulmonary disease); small breeds ([[Mitral Valve Dysplasia|mitral endocardiosis]]) and West Highland White Terriers (pulmonary fibrosis).  
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Some diseases predispose animals to secondary pulmonary hypertension. Predisposed breeds include brachycephalic dogs (chronic obstructive pulmonary disease); small breeds ([[Degenerative Mitral Valve Disease|mitral endocardiosis]]) and West Highland White Terriers (pulmonary fibrosis).
 
      
== Clinical Signs ==
 
== Clinical Signs ==
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== Diagnosis ==
 
== Diagnosis ==
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Physical examination, depending on any underlying conditions, may show a [[Heart Murmurs|heart murmur]] (mitral or tricuspid regurgitation), presence of a gallop rhythm, increased lung sounds and splitting of S2 heart sounds (see [[:Category:Arrhythmia|arrhythmias]]).  
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'''Physical examination''', depending on any underlying conditions, may show a [[Heart Murmurs|heart murmur]] (mitral or tricuspid regurgitation), presence of a gallop rhythm, increased lung sounds and splitting of S2 heart sounds (see [[:Category:Arrhythmia|arrhythmias]]).  
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Blood tests:
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'''Blood tests''':
 
:Arterial blood gases may show hypoxemia if there are low oxygen conditions.  
 
:Arterial blood gases may show hypoxemia if there are low oxygen conditions.  
 
:Complete Blood Count will show an eosinophilia if ther is parasitic involvement. (Serology or Fecal Baermann tests would confirm parasitic involvement).  
 
:Complete Blood Count will show an eosinophilia if ther is parasitic involvement. (Serology or Fecal Baermann tests would confirm parasitic involvement).  
 
:Biochemistry would show hyperglobulinemia in chronic inflammation.
 
:Biochemistry would show hyperglobulinemia in chronic inflammation.
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:A biomarker for a pulmonary hypertension is an elevated NT-proBNP.
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Urinalysis may show the presence of proteinuria if systemic disease is present.  
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'''Urinalysis''' may show the presence of proteinuria if systemic disease is present.  
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Radiography is best performed with a DV view. Signs will include left atrial and ventricular enlargement, pulmonary arterial enlargement, congested pulmonary veins and signs of pulmonary disease.Electrocardiography may show the presence of right ventricular hypertrophy (Deep S-waves) and signs of myocardial hypoxia (ST segment abnormalities). Echocardiography may be used to calculate pulmonary arterial pressures. It may also show enlargement of right-side of heart and enable visualisation of mitral or tricuspid regurgitation.
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'''Radiography''' is best performed with a DV view. Signs will include right atrial and ventricular enlargement, pulmonary arteries enlargement, enlargement of the V. cava caudalis, congested pulmonary veins and signs of pulmonary disease.  
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'''Electrocardiography''' may show the presence of right ventricular hypertrophy (deep S-waves) and signs of myocardial hypoxia (ST segment abnormalities).
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'''Echocardiography''' may be used to calculate pulmonary arterial pressures. It may also show enlargement of the right-side of the heart and enable visualisation of mitral or tricuspid regurgitation.<gallery caption="[[File:Enlarged pulmonary artery.jpg|thumb|354x354px|Enlarged pulmonary artery]]">
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</gallery>
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<gallery caption="[[File:Diagnosis of Pulmonary Hypertension.jpg|thumb|340x340px|Enlarged right atrium and ventricle]]">
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</gallery>
    
== Treatment ==
 
== Treatment ==
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*Treat chronic obstructive pulmonary disease
 
*Treat chronic obstructive pulmonary disease
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== Prognosis ==
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Depends on the disease condition causing pulmonary hypertension and the ability to control it. Prognosis is poor when pulmonary drainage is irreversible.
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== Prognosis<br> ==
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{{review}}
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Depends on the disease condition causing disease and the ability to control it. Prognosis is poor when pulmonary drainage is irreversible.<br>
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<br>
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[[Category:Lungs_-_Circulatory_Pathology]] [[Category:Vascular_Diseases_-_Dog]] [[Category:Vascular_Diseases_-_Cat]] [[Category:Arterial_Pathology]] [[Category:To_Do_-_Review]]
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[[Category:Lungs_-_Circulatory_Pathology]] [[Category:Vascular_Diseases_-_Dog]] [[Category:Vascular_Diseases_-_Cat]] [[Category:Arterial_Pathology]] [[Category:Expert_Review]]
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[[Category:Cardiology Section]]
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