|
PULMONARY HYPERTENSION |
|
chronic lung disease (causing obliteration of pulmonary vascular bed): |
emphysema pulmonary fibrosis sarcoidosis |
| collagen vascular disease: |
scleroderma (especially limited cutaneous variant 'CREST') polyarteritis nodosa systemic lupus erythematosus |
|
obstruction to pulmonary arterial circulation: |
pulmonary embolism primary pulmonary hypertension (idiopathic; usually affects young females)persistent pulmonary hypertension of the newborn |
|
pulmonary venous hypertension: |
mitral stenosis left-sided heart failure left atrial myxoma veno-occlusive disease |
|
systemic-to-pulmonary shunts: |
patent ductus arteriosus ventricular septal defect atrial septal defect liver failure (pulmonary AV shunts) |
|
disease causing impaired ventilation (pulmonary vasoconstriction secondary to chronic hypoxia): |
chronic obstructive pulmonary disease sleep apnoea syndromes kyphoscoliosis thoracoplasty |
| infections: |
HIV polio schistosomiasis |
| drugs & toxins: |
CNS appetite suppressants (e.g.
fenfluramine) rapeseed oil |
| other: |
any other chronic disease impairing ventilation chronic hypoxia of altitude |
click here to return to the main contents page of Differential Diagnoses in General Medicine