Successful Repair of Acute Type B and Retrograde Type A Aortic Dissection With Kidney Ischemia

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Acute dissection of thoracic aorta carries a risk of renal ischemia followed by the development of a kidney failure. The optimal surgical and nonsurgical management of these patients, timing of intervention, and the factors predicting renal recovery are not well delineated and remain controversial. We present a case of acute type B thoracic aortic dissection with left kidney ischemia. Evaluation of renal function was performed by the means of internationally accepted Risk, Injury, Failure, Loss of kidney function, End stage kidney disease and Acute Kidney Injury Network classifications for acute kidney injury, renal duplex sonography, and intravascular ultrasound that demonstrated left renal artery dissection with a flap completely compressing the true lumen. The patient underwent thoracic endovascular aortic repair and left renal artery stent and recovered well. Six months later, at the follow-up visit, retrograde type A aortic dissection was found, which was successfully repaired. Reversal of renal ischemia after aortic dissection depends on the precise assessment of renal function and prompt intervention.

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