Understanding the Venice Classification of Pulmonary Arterial Hypertension

Pulmonary arterial hypertension (PAH) is a severe condition that can be categorized under the Venice classification into five groups.

• Group 1 encompasses idiopathic or hereditary PAH, often linked to genetic mutations.
• Group 2 includes PAH related to left heart disease, which can stem from conditions like left ventricular dysfunction.
• Group 3 covers PAH associated with lung diseases or hypoxemia, commonly seen in chronic obstructive pulmonary disease (COPD).
• Group 4 involves PAH due to chronic thromboembolic events, where blood clots obstruct the pulmonary arteries.
• Group 5 comprises miscellaneous causes, such as systemic disorders like sarcoidosis or metabolic diseases.

Advances in diagnostics and treatments are crucial for managing these diverse categories effectively.
Understanding the Venice Classification of Pulmonary Arterial Hypertension