|ICD-9-CM||39.74, 38.0, 38.1|
Embolectomy is the emergency surgical removal of emboli which are blocking blood circulation. It usually involves removal of thrombi (blood clots), and is then referred to as thrombectomy. Embolectomy is an emergency procedure often as the last resort because permanent occlusion of a significant blood flow to an organ leads to necrosis. Other involved therapeutic options are anticoagulation and thrombolysis.
Emboli are abnormal masses of material (which can be solid, liquid or gas) that are carried in the blood stream from one part of the circulation to another causing a blockage (occlusion) of a blood vessel that leads to lack of oxygen supply (ischemia) and finally infarction of tissue downstream of the embolus.
There are two areas where emboli can form and therefore impact:
- Arterial emboli form in the left side of the heart or the main arteries, they impact in body tissues but not the lungs, commonly in the brain and the small vessels in the upper and lower limbs
- Venous emboli arise in veins (for example emboli which form from deep venous thrombosis or DVT) and these impact in the lung (see pulmonary embolism).
Surgical or catheter embolectomy is normally performed in patients with pulmonary embolism (formed from venous embolisms). Embolectomy is used for patients with persisting shock despite supportive care and who have an absolute contraindication for thrombolytic therapy. And although other treatments have improved urgent surgical embolectomy or catheter embolectomy may be a life saving procedure in severe pulmonary embolism.
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Typically this is done by inserting a catheter with an inflatable balloon attached to its tip into an artery, passing the catheter tip beyond the clot, inflating the balloon, and removing the clot by withdrawing the catheter. The catheter is called Fogarty, named after its inventor Thomas J. Fogarty.
Possible complications of balloon embolectomy include intimal lesions, which can lead to another thrombosis. The vessel may also be affected by a dissection or rupture or causing cholesterol embolism from atherosclerotic plaques.
Catheter embolectomy is also used for aspiration embolectomy, where the thrombus is removed by suction rather than pushing with a balloon. It is a rapid and effective way of removing thrombi in thromboembolic occlusions of the limb arteries below the inguinal ligament, as in leg infarction.
Surgical embolectomy is the simple surgical removal of a clot following incision into a vessel by open surgery on the artery.
Outcome of embolectomy varies with size and location of the embolus.
In pulmonary embolism recent data shows mortality as being approximately 20%. Although this is a high mortality, it may have life-saving potential in some instances.
- Aleksic, Ivan; Kamler, Markus; Herold, Ulf; Massoudy, Parwis; Jakob, Heinz Gunter (2005-06). "Chirurgische Therapie der fulminanten Lungenembolie" [Surgical treatment for massive pulmonary embolism]. Herz (in German) 30 (4): 269–273. PMID 15965802. doi:10.1007/s00059-005-2701-x. Check date values in:
- Sanchez, Olivier; Planquette, Benjamin; Wermert, Delphine; Marie, Elisabeth; Meyer, Guy (2008-10). "Embolies pulmonaires graves" [Massive pulmonary embolism]. Presse Medicale (in French) 37 (10): 1439–1446. doi:10.1016/j.lpm.2008.07.003. Check date values in:
- Gupta, S, Gupta, Brig; Gupta, BM (2008-03). "Acute pulmonary embolism advances in treatment". Journal of the Association of Physicians of India 56: 185–191. PMID 18697636. Check date values in:
- Rutherford, Robert (2009-03). "Clinical staging of acute limb ischemia as the basis for choice of revascularization method: when and how to intervene". Seminars in Vascular Surgery 22 (1): 5–9. PMID 19298929. doi:10.1053/j.semvascsurg.2008.12.003. Check date values in:
- Stead, Latha; Gilmore, Rachel; Bellolio, Fernanda; Rabinstein, Alejandro; Decker, Wyatt (2008-08). "Percutaneous clot removal devices in acute ischemic stroke: a systematic review and meta-analysis". Archives of Neurology 65 (8): 1024–1030. PMID 18695052. doi:10.1001/archneur.65.8.1024. Check date values in:
- Kirurgiska åtgärder vid akut ischemi i nedre extremitet. (Google Translate: Surgical measures in acute ischemia of lower extremities.) Pekka Aho och Pirkka Vikatmaa. Finska Läkaresällskapets Handlingar (Finnish Medical Society Documents). No. 1, 2003
- Oğuzkurt L, Ozkan U, Gümüş B, Coşkun I, Koca N, Gülcan O (March 2010). "Percutaneous aspiration thrombectomy in the treatment of lower extremity thromboembolic occlusions". Diagn Interv Radiol 16 (1): 79–83. PMID 20044798. doi:10.4261/1305-3825.DIR.2654-09.1.
- MDGuidelines > Arterial Embolism And Thrombosis From The Medical Disability Advisor by Presley Reed, MD. Retrieved on April 30, 2010
- Stein, Paul; Alnas, Majd; Beemath, Afzal; Patel, Nikunj (2007-02-01). "Outcome of pulmonary embolectomy". American Journal of Cardiology 99 (3): 421–423. PMID 17261411. doi:10.1016/j.amjcard.2006.08.050.
- An article on femoral embolectomy (from netdoctor.co.uk) reviewed by a consultant transplant and general surgeon
- Dictionary definitions of Embolectomy (from Memidex/WordNet)