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  • Title: Endovascular management of early lung transplant-related anastomotic pulmonary artery stenosis.
    Author: Anaya-Ayala JE, Loebe M, Davies MG.
    Journal: J Vasc Interv Radiol; 2015 Jun; 26(6):878-82. PubMed ID: 25851200.
    Abstract:
    PURPOSE: To report the safety and short-term efficacy of endovascular interventions for symptomatic lung transplant-related anastomotic pulmonary artery stenosis (PAS). MATERIALS AND METHODS: From February 2008 to December 2011, 354 lung transplants were performed. Pulmonary arteriography was performed in 19 patients (63% men; age, 57 y ± 21, mean ± SD; seven double-lung transplants) because of respiratory decompensation (mean 6.7 mo after transplant). Seven arteriograms were normal, and 12 showed significant PAS. One patient (5%) underwent angioplasty alone, and 11 patients (57%) underwent stent placement. RESULTS: All patients underwent general anesthesia, and femoral access was used for the intervention. Technical success was 100% in the 12 patients treated. Symptoms improved in all patients who underwent intervention, with resolution in 11 of 12 (92%). There were no major or minor complications. Three patients (16%) had recurrent symptoms after discharge secondary to chronic rejection or pneumonia. Two patients died as a result of sepsis and multiorgan failure at 2 days and 14 days, respectively, after undergoing only pulmonary arteriography. In-stent stenosis occurred in 1 (9%) patient who required additional stent placement. During a mean follow-up period of 11 months, the remaining stents were patent, and the patients were asymptomatic. CONCLUSIONS: Endovascular stent placement provides an alternative to open repair for transplant-related anastomotic PAS. It has low mortality and morbidity rates, and it has shown excellent short-term functional and anatomic outcomes.
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