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  • Title: Blunt thoracic aortic injury: a single institution comparison of open and endovascular management.
    Author: Midgley PI, Mackenzie KS, Corriveau MM, Obrand DI, Abraham CZ, Fata P, Steinmetz OK.
    Journal: J Vasc Surg; 2007 Oct; 46(4):662-8. PubMed ID: 17764869.
    Abstract:
    OBJECTIVE: To review the treatment of blunt thoracic aortic injuries (BAI) at a single institution over the past 12 years and compare pre-, peri-, and postoperative variables and outcomes of both open (OR) and thoracic endovascular (TEVAR) repair of these injuries. METHODS: All cases of confirmed BAI from 1994 to present were included in this retrospective review. Data collected included demographic data, injury severity score, Glasgow coma score, arrival hemodynamic variables, and associated injuries. Operative data included: type of procedure (OR or TEVAR), duration of procedure, need for and amount of blood transfused, use of anticoagulation, type of anesthesia, and service performing the procedure. Outcomes evaluated were: death, paraplegia, length of stay, days ventilated, and procedure related complications. Specific to EVAR; access, stent graft type and number, presence of endoleak and long-term clinical and radiologic follow-up were evaluated. RESULTS: Thirty cases of blunt thoracic aortic injury were identified. Two patients received no treatment and died, 28 patients were treated (OR 16, TEVAR 12) and included for comparison. There were no significant differences between groups with respect to preoperative variables with the exception of significantly more associated intra-abdominal injuries in the TEVAR group (P = .03). Five patients in the OR group (31.2%) died in the perioperative period. There were no deaths in the TEVAR group (P =.05). One OR patient (6.25%) suffered postoperative paraplegia. No paraplegia occurred in the TEVAR group. Intraoperative variables were similar between groups with the exception of mean units of blood transfused (OR 8.5 units, vs TEVAR 0.2 units, P = .002). Ten patients in the OR group either died or had a procedure related complication compared with none in the TEVAR group (P = .001). There was no difference in length of stay or length of mechanical ventilation between the groups. There were no procedure or device related complications in the TEVAR group during follow-up (mean 15.3 months, range 1 to 53.5 months). CONCLUSIONS: Endovascular repair of BAI results in significantly less combined mortality and morbidity when compared to OR. Significantly less blood is needed intraoperatively in the TEVAR group. No complications from stent graft insertion have been observed during follow-up. Endovascular repair is replacing open repair as the treatment of choice for BAI at our institution.
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