Pulmonary hypertension (2003 classification)

There are numerous causes of pulmonary hypertension, and thus not surprisingly there have been many classification systems.

In 2003, the Third World Symposium on PAH met in Venice and produced an updated classification system (this has been further revised on the Dana Point classification of pulmonary hypertension).

  1. pulmonary arterial hypertension (PAH)
  2. pulmonary hypertension associated with left heart diseases
    • left-sided atrial or ventricular heart disease
    • left-sided valvular heart disease
  3. pulmonary hypertension associated with lung respiratory diseases and/or hypoxia
  4. pulmonary hypertension due to chronic thrombotic and/or embolic disease
    • thromboembolic obstruction of proximal pulmonary arteries
    • thromboembolic obstruction of distal pulmonary arteries
    • non-thrombotic pulmonary embolism (tumour, parasites, foreign material)
  5. miscellaneous

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