pulmonary endarterectomy
Also written as: PEA — Pulmonary Endarterectomy
Surgical removal of organized thromboembolic material from pulmonary arteries to restore blood flow in chronic thromboembolic pulmonary hypertension.
Full Definition
Pulmonary endarterectomy is a complex surgical procedure performed to treat chronic thromboembolic pulmonary hypertension (CTEPH). The surgery involves the careful removal of organized thromboembolic material and scar tissue from the pulmonary arterial tree, typically performed under deep hypothermic circulatory arrest. This procedure requires specialized expertise as it involves dissection in the correct surgical plane between the organized thrombus and the arterial media. Success depends on proper patient selection and the surgeon's ability to achieve complete endarterectomy while preserving arterial integrity.
Usage
Usage note: Distinguish from acute pulmonary embolectomy, which removes fresh clots rather than organized chronic material.
In Context
- "The patient was referred for pulmonary endarterectomy after medical therapy failed to improve his CTEPH symptoms." — Cardiothoracic surgery consultation note
- "Deep hypothermic circulatory arrest was initiated to facilitate the bilateral pulmonary endarterectomy procedure." — Operative report