alexa Early and midterm results of transapical and right axillary artery cannulation for acute aortic dissection.


Journal of Vascular Medicine & Surgery

Author(s): Terasaki T, Takano T, Fujii T, Seto T, Wada Y,

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Abstract BACKGROUND: We combined transapical cannulation and right axillary artery cannulation in the repair of acute type A aortic dissection in order to reduce mortality and morbidity in the presence of risk of malperfusion. Early and midterm outcomes were evaluated. METHODS: Between October 2009 and March 2012, 23 aortic dissection patients (age, 54.3 ± 13.5 years) received graft replacement using a combination of transapical and right axillary artery cannulation. Preoperative malperfusion was present in 16 patients (69.6\%). Cardiopulmonary bypass was initiated with axillary artery cannulation applied via the right axilla and right atrial drainage, then aotric cannulation applied via the left ventricular apex. We retrospectively investigated mortality and morbidity as well as cardiac function, which were evaluated echocardiographically during hospitalization and once a year postoperatively. RESULTS: All patients received total arch replacement. In-hospital mortality was 4.3\%, and no patient developed intraoperative malperfusion. Intraoperative stroke occurred in one patient (4.3\%), and three patients (13.0\%) suffered from delayed stroke (10-24 days). These delayed strokes might have resulted from cardiogenic thrombus, although no intracardiac thrombus was found. Mean ejection fraction was 66.1 ± 10.9\% in the early postoperative period and 73.1 ± 8.7\% midterm. There was no left ventricular asynergy or intracardiac thrombus seen on either early or midterm echocardiography. CONCLUSION: Transapical cannulation with right axillary artery cannulation is a safe and effective procedure that can reduce operative risk associated with aortic dissection. Although transapical cannulation does not appear to impair cardiac function, it may confer a risk of delayed stroke.
This article was published in J Cardiothorac Surg and referenced in Journal of Vascular Medicine & Surgery

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