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Secondary Open Aortic Procedure Following Thoracic Endovascular Aortic Repair: Meta-Analytic State of the Art.

ABSTRACT: Thoracic endovascular aortic repair is characterized by a substantial need for reintervention. Secondary open aortic procedure becomes necessary when further endoluminal options are exhausted. This synopsis and quantitative analysis of available evidence aims to overcome the limitations of institutional cohort reports on secondary open aortic procedure.Electronic databases were searched from 1994 to the present date with a prospectively registered protocol. Pooled quantification of pre/intraoperative variables, and proportional meta-analysis with random effect model of early and midterm outcomes were performed. Subgroup analysis was conducted for patients who had early mortality. Fifteen studies were elected for final analysis, encompassing 330 patients. The following values are expressed as "pooled mean, 95% confidence interval." Type B dissection was the most common pathology at index thoracic endovascular aortic repair (51.2%, 44.4-57.9). The most frequent indication for secondary open aortic procedure was endoleak (39.7%, 34.6-45.1). More than half of patients had surgery on the descending aorta (51.2%, 45.8-56.6), and one fourth on the arch (25.2%, 20.8-30.1). Operative mortality was 10.6% (7.4-14.9). Neurological morbidity was substantial between stroke (5.1%, 2.8-9.1) and paraplegia (8.3%, 5.2-13.1). At 2-year follow-up, mortality (20.4%, 11.5-33.5) and aortic adverse event (aortic death 7.7%, 4.3-13.3, tertiary aortic open procedure 7.4%, 4.0-13.2) were not negligible.In the secondary open aortic procedure population, type B dissection was both the most common pathology and the one associated with the lowest early mortality, whereas aortic infection and extra-anatomical bypass were associated with the most ominous prognosis.

SUBMITTER: Gambardella I

PROVIDER: S-EPMC5634303 | biostudies-other | 2017 Sep

REPOSITORIES: biostudies-other

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Secondary Open Aortic Procedure Following Thoracic Endovascular Aortic Repair: Meta-Analytic State of the Art.

Gambardella Ivancarmine I Antoniou George A GA Torella Francesco F Spadaccio Cristiano C Oo Aung Y AY Gaudino Mario M Nappi Francesco F Shaw Matthew A MA Girardi Leonard N LN

Journal of the American Heart Association 20170913 9

<h4>Background</h4>Thoracic endovascular aortic repair is characterized by a substantial need for reintervention. Secondary open aortic procedure becomes necessary when further endoluminal options are exhausted. This synopsis and quantitative analysis of available evidence aims to overcome the limitations of institutional cohort reports on secondary open aortic procedure.<h4>Methods and results</h4>Electronic databases were searched from 1994 to the present date with a prospectively registered p ...[more]

PMID: 28903940

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Project description:ImportanceThoracic endovascular aortic repair (TEVAR) has been adopted rapidly for treating traumatic thoracic aortic injury (TAI). The long-term durability and efficacy remain unknown.ObjectiveTo determine the long-term outcomes of thoracic endovascular aortic repair and those of open repair (OR) for traumatic TAI.Design, setting, participantsThis nationwide cohort study used Taiwan's National Health Insurance Database to evaluate patients with traumatic TAI between January 1, 2004, and December 31, 2013. This single-payer National Health Insurance program covered more than 99.9% of the Taiwanese population. Those who received OR or TEVAR for TAI by propensity score matching were included. Data analysis was conducted in October 2017.ExposuresThoracic endovascular aortic repair vs open repair.Main outcomes and measuresIn-hospital outcomes, all-cause mortality, aorta reintervention, and stroke during follow-up.ResultsOf the 287 patients (mean [SD] age, 41.66 [17.98] years; 80.5% male) who received OR or TEVAR for TAI, propensity score matching yielded 100 patients each in the OR and TEVAR groups. After propensity score matching, in-hospital mortality risk was significantly lower in the TEVAR group (9 [9.0%]) than in the OR group (27 [27.0%]; TEVAR vs open repair: odds ratio, 0.27; 95% CI, 0.12-0.60). With a mean (SD) follow-up of 2.80 (2.63) years, the proportion of survivors was 71.9% at 1 year, 70.8% at 2 years, 68.2% at 3 years, and 65.1% at 5 years in the OR group vs 88.9% at 1 year, 88.9% at 2 years, 88.9% at 3 years, and 88.9% at 5 years in the TEVAR group (log-rank test, P < .001). The TEVAR group had only 2 events (2%) of late reintervention and 1 event (1%) of late cerebrovascular accident. The proportion of freedom from reintervention was 100% at 1 year, 100% at 2 years, 100% at 3 years, and 100% at 5 years in the OR group vs 97.4% at 1 year, 97.4% at 2 years, 97.4% at 3 years, and 97.4% at 5 years in the TEVAR group (log-rank test, P = .18).Conclusion and relevanceCompared with OR, TEVAR was associated with better long-term outcomes, mainly owing to lower mortality during the perioperative period. In addition, TEVAR was associated with a similar rate of survival and reintervention after hospital discharge.

Project description:For descending thoracic aortic aneurysms (TAAs), it is generally considered that thoracic endovascular aortic repairs (TEVARs) reduce operative morbidity and mortality compared with open surgical repair. However, long-term differences in survival of patients have not been demonstrated, and an increased need for aortic reintervention has been observed. Many assume that TEVAR becomes less cost-effective through time because of higher rates of reintervention and surveillance imaging. This study investigated midterm outcomes and hospital costs of TEVAR compared with open TAA repair.This was a retrospective, single-institution review of elective TAA repairs between 2005 and 2012. Patient demographics, operative outcomes, reintervention rates, and hospital costs were assessed. The literature was also reviewed to determine commonly observed complication and reintervention rates for TEVAR and open repair. Monte Carlo simulation was used to model and to forecast hospital costs for TEVAR and open TAA repair up to 3 years after intervention.Our cohort consisted of 131 TEVARs and 27 open repairs. TEVAR patients were significantly older (67.2 vs 58.7 years old; P = .02) and trended toward a more severe comorbidity profile. Operative mortality for TEVAR and open repair was 5.3% and 3.7%, respectively (P = 1.0). There was a trend toward more complications in the TEVAR group, although not statistically significant (all P > .05). In-hospital costs were significantly greater in the TEVAR group ($52,008 vs $37,172; P = .001). However, cost modeling by use of reported complication and reintervention rates from the literature overlaid with our cost data produced a higher cost for the open group in-hospital ($55,109 vs $48,006) and at 3 years ($58,426 vs $52,825). Interestingly, TEVAR hospital costs, not reintervention rates, were the most significant driver of cost in the TEVAR group.Our institutional data showed a trend toward lower mortality and complication rates with open TAA repair, with significantly lower costs within this cohort compared with TEVAR. These findings were likely, at least in part, to be due to the milder comorbidity profile of these patients. In contrast, cost modeling by Monte Carlo simulation demonstrated lower costs with TEVAR compared with open repair at all time points up to 3 years after intervention. Our institutional data show that with appropriate selection of patients, open repair can be performed safely with low complication rates comparable to those of TEVAR. The cost model argues that despite the costs associated with more frequent surveillance imaging and reinterventions, TEVAR remains the more cost-effective option even years after TAA repair.

Dataset Information

Secondary Open Aortic Procedure Following Thoracic Endovascular Aortic Repair: Meta-Analytic State of the Art.

Publications

Secondary Open Aortic Procedure Following Thoracic Endovascular Aortic Repair: Meta-Analytic State of the Art.

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