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Internal mammary artery embolization for hemoptysis.
M Hashimoto1, J Heianna, K Okane
1Department of Radiology, Akita University School of Medicine, Akita City, Japan.
Acta Radiologica (Stockholm, Sweden : 1987)
|March 18, 1999
Summary
Embolizing the internal mammary artery (IMA) effectively treats hemoptysis when lung lesions extend to the anterior pleura. Distal occlusion of the IMA before proximal embolization improves treatment outcomes.
Area of Science:
- Interventional Radiology
- Pulmonary Medicine
- Vascular Surgery
Background:
- The internal mammary artery (IMA) can supply abnormal blood flow to lesions causing hemoptysis, particularly when pulmonary disease involves the anterior pleural surface.
- Understanding the vascular supply patterns of the IMA is crucial for effective hemoptysis management.
Purpose of the Study:
- To identify factors influencing IMA blood supply development.
- To evaluate the efficacy of embolizing abnormal IMA branches after occluding normal distal branches for hemoptysis treatment.
Main Methods:
- Five patients with hemoptysis underwent IMA embolization using microcatheter systems.
- Pre-embolization assessment included bronchoscopy, chest radiography, and CT scans to identify the disease extent.
- Techniques involved distal microcoil occlusion followed by proximal particle embolization of abnormal branches.
Main Results:
- Pulmonary lesions extended from the lung to the adjacent anterior pleural surface in all patients.
- Four patients treated with combined distal and proximal embolization experienced successful outcomes.
- One patient treated with proximal embolization alone experienced recurrent bleeding.
Conclusions:
- The IMA is a significant contributor to hemoptysis when lesions involve the anterior lung parenchyma and pleura.
- Performing initial distal occlusion of the IMA may enhance the success rate of embolization therapy for hemoptysis.