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Pulmonary Hypertension (view source)
Revision as of 17:10, 19 February 2011
, 17:10, 19 February 2011no edit summary
*Hypertension is defined as the pathological elevation of arterial blood pressure.
*Hypertension is defined as the pathological elevation of arterial blood pressure.
*There are two main types of hypertension, systemic hypertension (affects the systemic circulation) and pulmonary hypertension (affects the pulmonary circulation).
*There are two main types of hypertension, systemic hypertension (affects the systemic circulation) and pulmonary hypertension (affects the pulmonary circulation).
*Blood pressure in veterinary patients is not measured routinely; therefore hypertension is usually only diagnosed after clinical signs become apparent.
*Blood pressure in veterinary patients is not measured routinely; therefore hypertension is usually only diagnosed after clinical signs become apparent.
'''Description:'''
'''Description:'''
*Pulmonary hypertension=increase in pulmonary arterial pressure
*Pulmonary hypertension=increase in pulmonary arterial pressure
'''There are two types of pulmonary hypertension:'''
'''There are two types of pulmonary hypertension:'''
*[[Cor Pulmonale|'''cor pulmonale''']]=right sided heart failure resulting from pulmonary hypertension
*[[Cor Pulmonale|'''cor pulmonale''']]=right sided heart failure resulting from pulmonary hypertension
*Pulmonary thromboembolism from neoplasia, heart worm disease, and other factors can cause cor pulmonale by blocking the pulmonary vessels with emboli leading to increased pulmonary arterial pressures and ultimately right sided heart failure.
*Pulmonary thromboembolism from neoplasia, heart worm disease, and other factors can cause cor pulmonale by blocking the pulmonary vessels with emboli leading to increased pulmonary arterial pressures and ultimately right sided heart failure.
*The hypoxic conditions at high elevations or animals with chronic airway disease contribute to pulmonary hypertension through hypoxia-induced vasoconstriction.
*The hypoxic conditions at high elevations or animals with chronic airway disease contribute to pulmonary hypertension through hypoxia-induced vasoconstriction.
====Signalment====
====Signalment====
-Poor when pulmonary damage is irreversible
-Poor when pulmonary damage is irreversible
*Caused by '''left-to-right vascular shunts''' or increased resistance of the pulmonary vascular system
*In animals, it is most commonly a sequel of '''widespread fibrosis in the lung''' or [[Bronchitis#Chronic bronchitis|chronic bronchitis or bronchiolitis]] which stimulates hypertrophy in the walls of small arteries
*Severe prolonged pulmonary hypertension leads to [[Cor Pulmonale|'''cor pulmonale''']], right-sided heart failure secondary to primary lung disease
[[Category:Lungs - Circulatory Pathology]]
[[Category:Vascular Diseases - Dog]][[Category:Vascular Diseases - Cat]][[Category:Arterial_Pathology]][[Category:To_Do_-_Cardiovascular]]
[[Category:Vascular Diseases - Dog]][[Category:Vascular Diseases - Cat]][[Category:Arterial_Pathology]][[Category:To_Do_-_Cardiovascular]]