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  • Title: Acute type B aortic dissection complicated by visceral ischemia.
    Author: Jonker FH, Patel HJ, Upchurch GR, Williams DM, Montgomery DG, Gleason TG, Braverman AC, Sechtem U, Fattori R, Di Eusanio M, Evangelista A, Nienaber CA, Isselbacher EM, Eagle KA, Trimarchi S.
    Journal: J Thorac Cardiovasc Surg; 2015 Apr; 149(4):1081-6.e1. PubMed ID: 25500101.
    Abstract:
    OBJECTIVE: Acute type B aortic dissection (ABAD) can lead to visceral malperfusion, a potentially life-threatening complication. The purpose of this study was to investigate the presentation, management, and outcomes of ABAD patients with visceral ischemia who are enrolled in the International Registry of Acute Aortic Dissection. METHODS: Patients with ABAD enrolled in the registry between 1996 and 2013 were identified and stratified based on presence of visceral ischemia at admission. Demographics, medical history, imaging results, management, and outcomes were compared for patients with versus without visceral ischemia. RESULTS: A total of 1456 ABAD patients were identified, of which 104 (7.1%) presented with visceral ischemia. Preoperative limb ischemia (28% vs 7%, P < .001) and acute renal failure (41% vs 14%, P < .001) were more common among patients with visceral ischemia. Endovascular treatment and surgery were offered to 49% and 30% of the visceral ischemia cohort, respectively; remaining patients were managed conservatively. The in-hospital mortality was 30.8% for patients with visceral ischemia and 9.1% for those without visceral ischemia (odds ratio [OR] 4.44; 95% confidence interval [CI], 2.8-7.0, P < .0001). Mortality rates were similar after surgical and endovascular management of visceral ischemia (25.8% and 25.5%, respectively, P = not significant). Among the visceral ischemia group, medical management was a predictor of mortality in multivariate analysis (OR, 5.91; 95% CI, 1.2-31.0; P = .036). CONCLUSIONS: Patients with ABAD complicated by visceral ischemia have a high risk of mortality. We observed similar outcomes for patients treated by endovascular management versus surgery, whereas medical management was an independent predictor of mortality. Early diagnosis and intervention for visceral ischemia seems to be crucial.
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