Postoperative acute kidney injury after thoracic endovascular aortic repair for acute type B aortic dissection

J Vasc Surg. 2023 Oct;78(4):912-919.e1. doi: 10.1016/j.jvs.2023.05.055. Epub 2023 Jun 15.

Abstract

Background: Thoracic endovascular aortic repair (TEVAR) has evolved as the standard for treating complicated acute type B aortic dissection (ATBAD). Acute kidney injury (AKI) is a common complication in critically ill patients and is commonly observed in patients with ATBAD. The purpose of the study was to characterize AKI after TEVAR.

Methods: All patients who underwent TEVAR for ATBAD from 2011 through 2021 were identified using the International Registry of Acute Aortic Dissection. The primary end point was AKI. A generalized linear model analysis was performed to identify a factor associated with postoperative AKI.

Results: A total of 630 patients presented with ATBAD and underwent TEVAR. The indication for TEVAR was complicated ATBAD in 64.3%, high-risk uncomplicated ATBAD in 27.6%, and uncomplicated ATBAD in 8.1%. Of 630 patients, 102 (16.2%) developed postoperative AKI (AKI group) and 528 patients (83.8%) did not (non-AKI group). The most common indication for TEVAR was malperfusion (37.5%). In-hospital mortality was significantly higher in the AKI group (18.6% vs 4%; P < .001). Postoperatively, cerebrovascular accident, spinal cord ischemia, limb ischemia, and prolonged ventilation were more commonly observed in the AKI group. The expected mortality was similar at 2 years between the two groups (P = .51). Overall, the preoperative AKI was observed in 95 (15.7%) in the entire cohort consisting of 60 (64.5%) in the AKI group and 35 (6.8%) in the non-AKI group. A history of CKD (odds ratio, 4.6; 95% confidence interval, 1.5-14.1; P = .01) and preoperative AKI (odds ratio, 24.1; 95% confidence interval, 10.6-55.0; P < .001) were independently associated with postoperative AKI.

Conclusions: The incidence of postoperative AKI was 16.2% in patients undergoing TEVAR for ATBAD. Patients with postoperative AKI had a higher rate of in-hospital morbidities and mortality than those without. A history of CKD and preoperative AKI were independently associated with postoperative AKI.

Keywords: Acute aortic dissection; Acute kidney injury; International Registry of Acute Aortic Dissections; Malperfusion; Type B aortic dissection.

MeSH terms

  • Acute Kidney Injury* / diagnosis
  • Acute Kidney Injury* / epidemiology
  • Acute Kidney Injury* / etiology
  • Aortic Aneurysm, Thoracic* / complications
  • Aortic Aneurysm, Thoracic* / diagnostic imaging
  • Aortic Aneurysm, Thoracic* / surgery
  • Aortic Dissection* / diagnostic imaging
  • Aortic Dissection* / surgery
  • Blood Vessel Prosthesis Implantation* / adverse effects
  • Endovascular Aneurysm Repair
  • Endovascular Procedures* / adverse effects
  • Humans
  • Postoperative Complications / etiology
  • Postoperative Complications / surgery
  • Renal Insufficiency, Chronic* / complications
  • Retrospective Studies
  • Risk Factors
  • Treatment Outcome