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| IR SNAPSHOT |
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| Year : 2019 | Volume
: 3
| Issue : 1 | Page : 29-30 |
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Combined treatment of a postoperative pseudoaneurysm of the left internal mammary artery by coil embolization and thrombin injection
Alexandre Ponti, Salah D Qanadli
Department of Diagnostic and Interventional Radiology, Cardio-Thoracic and Vascular Unit, Lausanne University Hospital, Lausanne, Switzerland
| Date of Web Publication | 5-Feb-2019 |
Correspondence Address:
Dr. Alexandre Ponti
Department of Diagnostic and Interventional Radiology, Cardio-Thoracic and Vascular Unit, Lausanne University Hospital, Rue Du Bugnon 46, Lausanne 1011
Switzerland
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/AJIR.AJIR_29_18
How to cite this article:
Ponti A, Qanadli SD. Combined treatment of a postoperative pseudoaneurysm of the left internal mammary artery by coil embolization and thrombin injection. Arab J Intervent Radiol 2019;3:29-30 |
How to cite this URL:
Ponti A, Qanadli SD. Combined treatment of a postoperative pseudoaneurysm of the left internal mammary artery by coil embolization and thrombin injection. Arab J Intervent Radiol [serial online] 2019 [cited 2019 Aug 24];3:29-30. Available from: http://www.arabjir.com/text.asp?2019/3/1/29/251562 |
Aneurysms or pseudoaneurysms of the internal thoracic (or mammary) arteries (ITA) have various etiologies, most commonly a known complication after sternotomy. Treatment is required in every situation due to the risk of rupture. Several percutaneous or open techniques have been described.
A 77-year-old male patient underwent surgical replacement of the aortic and mitral valves for severe aortic stenosis and severe mitral regurgitation. On the 11th postoperative day, a pulsatile sternal mass was palpable at the level of the second left rib. Doppler ultrasound revealed a subcutaneous pseudoaneurysm (19 mm × 11 mm × 18 mm) originating from the left ITA with a 3 mm neck [Figure 1]. Exclusion of the aneurysm was performed by transcatheter embolization through a right common femoral access. Tornado coils (Cook Medical, Bloomington, Indiana, USA) were used to close the ITA proximal and distal to the aneurysm [Figure 2]. Unfortunately, postoperative ultrasound at day one showed a residual flow within the aneurysm with incomplete thrombosis [Figure 3] that was confirmed by computed tomography angiography. Therefore, under ultrasound guidance, 1000 UI of thrombin were injected percutaneously into the pseudoaneurysm sac. Immediate thrombosis was achieved without any residual flow. | Figure 1: Doppler ultrasound of the pulsatile mass at the level of the second rib demonstrating the pseudoaneurysm originating from the left internal mammary artery. The classical yin-yang sign is illustrated here corresponding to bidirectional flow with swirling of blood inside the aneurysmal cavity
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 | Figure 2: Angiographic views before (a) and after (b) embolization after selective injection of contrast through the left internal mammary artery. (a) The pseudoaneurysm is recognized at the level of the second sternal wire (white arrowheads). (b) Result after embolization of the left internal thoracic artery proximal and distal to the aneurysm. Notice the anchoring technique used for both coils vaso-occlusion. No residual flow is visible through the occluded artery
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 | Figure 3: Multiplanar reconstruction of the computed tomography angiography in arterial phase in first postoperative day. Unfortunately, despite the embolization, the pseudoaneurysm (white arrowheads) is still opacified through collateral vessels which required a complementary direct injection of thrombin
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Financial support and sponsorship
Nil.
Conflicts of interest
There are no conflicts of interest.
[Figure 1], [Figure 2], [Figure 3]
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