Custom-Made Endograft for Endovascular Repair of Thoraco-Abdominal Aneurysm and Type B Dissection: Single-Centre Experience

Partial Deployment to Save Space for Vessel Cannulation When Treating Complex Aortic Aneurysms with Narrow Paravisceral Lumen Is Also Feasible Using Inner-Branched Pre-Cannulated Endografts

Introduction: The aim of this paper is to propose a sequential deployment technique for the E-nside off-the-shelf endograft that could potentially enhance target visceral vessel (TVV) cannulation and overstenting in narrow aortic anatomies. Methods: All data regarding patients consecutively treated in two aortic centers with the E-nside graft employing the partial deployment technique were included in the study cohort and analyzed. To execute the procedure with partial endograft deployment, the device should be prepared before insertion by advancing, under fluoroscopy, all four dedicated 400 cm long 0.018″ non-hydrophilic guidewires until their proximal ends reach the cranial graft's edge. Anticipating this guidewire placement prevents the inability to do so once the endograft is partially released, avoiding potentially increased friction inside the constricted pre-loaded microchannels. The endograft is then advanced and deployed in the standard fashion, stopping just after the inner branch outlets are fully expanded. Tip capture is released, and the proximal end of the device is opened. Visceral vessel bridging is completed from an upper access in the desired sequence, and the graft is fully released after revascularizing one or more arteries. Preventing the distal edge of the graft from fully expanding improves visceral vessel cannulation and bridging component advancement, especially when dealing with restricted lumina. Results: A total of 26 patients were treated during the period December 2019-March 2024 with the described approach. Procedure was performed in urgent settings in 14/26 cases. The available lumen was narrower than 24 mm at the origin of at least one target vessel in 11 out of 26 cases performed (42.3%). Technical success was obtained in 24 out of 26 cases (92.3%), with failures being due to TVVs loss. No intraoperative death or surgical conversion was recorded, and no early reintervention was needed in the perioperative period. Clinical success at 30 days was therefore 80.7%. Conclusions: The described technique could be considered effective in saving space outside of the graft, allowing for safe navigation and target vessel cannulation in narrow visceral aortas, similar to what has already been reported for outer-branched endografts.

The Utility of Three-Dimensional Printing in Physician-Modified Stent Grafts for Aortic Lesions Repair

Background: Three-dimensional (3D) printing is becoming increasingly popular around the world not only in engineering but also in the medical industry. This trend is visible, especially in aortic modeling for both training and treatment purposes. As a result of advancements in 3D technology, patients can be offered personalized treatment of aortic lesions via physician-modified stent grafts (PMSG), which can be tailored to the specific vascular conditions of the patient. The objective of this systematic review was to investigate the utility of 3D printing in PMSG in aortic lesion repair by examining procedure time and complications. Methods: The systematic review has been performed using the PRISMA 2020 Checklist and PRISMA 2020 flow diagram and following the Cochrane Handbook. The systematic review has been registered in the International Prospective Register of Systematic Reviews: CRD42024526950. Results: Five studies with a total number of 172 patients were included in the final review. The mean operation time was 249.95± 70.03 min, and the mean modification time was 65.38 ± 10.59 min. The analysis of the results indicated I2 of 99% and 100% indicating high heterogeneity among studies. The bias assessment indicated the moderate quality of the included research. Conclusions: The noticeable variance in the reviewed studies' results marks the need for larger randomized trials as clinical results of 3D printing in PMSG have great potential for patients with aortic lesions in both elective and urgent procedures.

Single-center initial experience with inner-branch complex EVAR in 44 patients

Purpose

The use of inner-branch aortic stent grafts in the treatment of complex aortic pathologies aims at broad applicability and stable bridging stent sealing compared to other endovascular technologies. The objective of this study was to evaluate the early outcomes with a single manufacturer custom-made and off-the-shelf inner-branched endograft in a mixed patient cohort.

Methods

This retrospective, monocentric study between 2019 and 2022 included 44 patients treated with inner-branched aortic stent grafts (iBEVAR) as custom-made device (CMD) or off-the-shelf device (E-nside) with at least four inner branches. The primary endpoints were technical and clinical success.

Results

Overall, 77% (n = 34) and 23% (n = 10) of the patients (mean age 77 ± 6.5 years, n = 36 male) were treated with a custom-made iBEVAR with at least four inner branches and an off-the-shelf graft, respectively. Treatment indications were thoracoabdominal pathologies in 52.2% (n = 23), complex abdominal aneurysms in 25% (n = 11), and type Ia endoleaks in 22.7% (n = 10). Preoperative spinal catheter placement was performed in 27% (n = 12) of patients. Implantation was entirely percutaneous in 75% (n = 33). Technical success was 100%. Target vessel success manifested at 99% (178/180). There was no in-hospital mortality. Permanent paraplegia developed in 6.8% (n = 3) of patients. The mean follow-up was 12 months (range 0-52 months). Three late deaths (6.8%) occurred, one related to an aortic graft infection. Kaplan-Meier estimated 1-year survival manifested at 95% and branch patency at 98% (177/180). Re-intervention was necessary for a total of six patients (13.6%).

Conclusions

Inner-branch aortic stent grafts provide a feasible option for the treatment of complex aortic pathologies, both elective (custom-made) and urgent (off-the-shelf). The technical success rate is high with acceptable short-term outcomes and moderate re-intervention rates comparable to existing platforms. Further follow-up will evaluate long-term outcomes.

Uncomplicated Type B Aortic Dissection: Challenges in Diagnosis and Categorisation

BACKGROUND

Acute type B aortic dissection (TBAD) is a rare disease that is likely under-diagnosed in the UK. As a progressive, dynamic clinical entity, many patients initially diagnosed with uncomplicated TBAD deteriorate, developing end-organ malperfusion and aortic rupture (complicated TBAD). An evaluation of the binary approach to the diagnosis and categorisation of TBAD is needed.

METHODS

A narrative review of the risk factors predisposing patients to progression from unTBAD to coTBAD was undertaken.

RESULTS

Key high-risk features predispose the development of complicated TBAD, such as maximal aortic diameter > 40 mm and partial false lumen thrombosis.

CONCLUSION

An appreciation of the factors that predispose to complicated TBAD would aid clinical decision-making surrounding TBAD.

Inner branched complex aortic repair outcomes from a national multicenter registry using the E-xtra design platform

BACKGROUND

Complex aortic pathology still represents an open issue in contemporary endovascular management, with continuous technological advancement being introduced in practice over time aiming to improve outcomes. Thus far, the dualism between the fenestrated and branched configuration for visceral artery revascularization is yet unsolved, with each approach having its own pros and cons. The inner branched technology for endovascular aneurysm repair (iBEVAR) aims to take the best out of both strategies, offering wide applicability and stable bridging stent sealing. The objective of this study was to evaluate the early outcomes obtained with a single manufacturer custom-made inner-branched endograft in a multicenter Italian experience.

METHODS

All patients consecutively treated with E-xtra design devices in three Italian facilities were enrolled. Anatomic characteristics and perioperative data were analyzed. The main objective was to asses technical and clinical success after iBEVAR. Secondary end points were overall survival, aortic-related mortality, target visceral vessel (TVV) patency, and freedom from target vessel instability during follow-up.

RESULTS

From 2016 to 2021, 45 patients were treated with an E-xtra design device revascularizing at least one visceral vessel through an inner branch. The mean age at the time of the procedure was 71.1 ± 9.3 years and 77.8% were males. The total number of target visceral arteries to be bridged with an inner branch was 159. The extent of aortic repair was thoracoabdominal in 91.1% of the cases. Technical success was achieved in 93.3% of the procedures (42/45) with all failures owing to a type I endoleak at final angiography. Each TVV was successfully connected to the graft's main body as planned without complications. Following their intervention, five patients developed spinal cord ischemia and in three of these cases symptoms persisted after discharge (6.7%). At 30 days clinical success was 93.3% (42/45). No death as well as no TVV thrombosis occurred within 30 days from the primary procedures. The mean follow-up was 22.8 ± 14.2 months. The Kaplan-Meier estimate of overall survival and TVV patency at 36 months were 83.9% and 95.9%, respectively.

CONCLUSIONS

Inner branches seem to be a promising technology in the complex aortic repair landscape, with an applicability ranging from type II thoracoabdominal aneurysm to type I endoleak repair after infrarenal endografting. Whether iBEVAR could offer results comparable with those provided by fenestrated/branched endovascular aneurysm repair in terms of target vessel patency and stent stability is yet to be established and further studies are, therefore, needed.

Fenestrated and Branched Endografts for Post-Dissection Thoraco-Abdominal Aneurysms: Results of a National Multicentre Study and Literature Review

OBJECTIVE

Fenestrated and branched endografting (F/B-EVAR) has been proposed as an endovascular solution for chronic post-dissection thoraco-abdominal aneurysms (PD-TAAAs). The aim of this study was to analyse the experience of four high volume centres nationwide and the current available literature.

METHODS

Data on patients undergoing F/B-EVAR in four Italian academic centres between 2008 and 2019 were collected, and those from patients with PD-TAAAs were analysed retrospectively. Peri-operative morbidity and mortality were assessed as early outcomes. Survival, freedom from re-intervention (FFR), target visceral vessel (TVV) patency, and aortic remodelling were assessed as follow up outcomes. A MEDLINE search was performed for studies published from 2008 to 2020 reporting on F/B-EVAR in PD-TAAAs.

RESULTS

Among 351 patients who underwent F/B-EVAR for TAAAs, 37 (11%) had PD-TAAAs (Crawford's extent I-III: 35% - 95%). Overall, 135 TVVs (from true lumen 120; false lumen seven; both true and false lumen eight) were accommodated by fenestrations (96% - 71%) and branches (39% - 29%). Technical success (TS) was achieved in 34 (92%) cases with three failures due to endoleaks (Ia: 1; Ic: 1; III: 1). There were no 30 day deaths. No cases of permanent spinal cord ischaemia (SCI) were recorded and six (16%) patients suffered from transient deficits. Renal function worsening (eGFR < 30% than baseline) and pulmonary complications were reported in two (5%) and four (11%) cases, respectively. From the Kaplan-Meier analysis, three year survival, FFR, and TVV patency were 81%, 66%, and 97%, respectively. Radiological imaging was available for 30 (81%) patients at 12 months with complete false lumen thrombosis in 26 (87%). Two hundred and fifty-six patients were reported in seven published papers with TS, 30 day mortality, and SCI ranging from 99% to 100%, 0 to 6%, and 0 to 16%, respectively. The mean follow up ranged from 12 to 26 months, with estimated two year survival between 81% and 90% and a re-intervention rate between 19% and 53%.

CONCLUSION

F/B-EVAR is effective to treat PD-TAAAs. A high re-intervention rate is necessary to complete the aneurysm exclusion and promote aortic remodelling successfully.

Use of Inner Branches During Physician-Modified Endografting for Complex Abdominal and Thoracoabdominal Aortic Aneurysms

OBJECTIVES

Endovascular repair of complex abdominal and thoracoabdominal aortic aneurysms have been performed widely in an increasing number of centers, utilizing custom-manufactured or physician-modified stent grafts containing fenestrations and side-arm branches for visceral and renal artery incorporation. Alternatively, inner branch configurations may be useful in complex anatomy, where application of fenestrations or side-arm branches can be challenging. Our study aims to evaluate the incidence of target vessel instability when incorporated with inner branch configurations, and report clinical outcomes of patients who underwent fenestrated/branched endovascular aortic repairs (F-BEVAR) containing one or more inner branches.

METHODS

We reviewed patients who underwent F-BEVAR with at least one inner branch configuration for complex abdominal or thoracoabdominal aortic aneurysms at Keck Hospital of University of Southern California from 2014 to 2020. Endpoints were mortality, major adverse events (MAE), technical success, and target vessel instability. Target vessel instability was assessed using follow-up computed tomography (CT) and duplex imaging.

RESULTS

Out of the 175 patients who underwent F-BEVAR for complex abdominal and TAAA during the study period, 17 patients had at least one inner branch configuration. All were deemed high-risk for open repair with multiple cardiovascular and/or pulmonary comorbidities. Eight (47%) patients had extent I, II, III thoracoabdominal aortic aneurysms, and 10 (59%) had prior aortic repairs. A total of 68 target vessels were incorporated (mean = 4 vessels/patient, range=1~6), of which 40% were inner branch configurations, most commonly for renal arteries. Technical success was 94.1%. There was one perioperative mortality due to massive myocardial infarction, as well as one patient who needed temporary hemodialysis. No device-related mortalities were observed. At 30 days, primary inner branch patency was 100% with no target vessel instability or reintervention. At mean follow-up of 5.8 months, the overall survival was 94% with one patient who expired from unknown cause. Overall primary inner branch patency was 96.3%, due to occlusion of a long lumbar artery branch with no clinical sequelae.

CONCLUSION

Inner branch configurations can provide a safe alternative technique of branch incorporation during complex endovascular aortic repair.

Proportional meta-analysis of open surgery or fenestrated endograft repair for postdissection thoracoabdominal aneurysms

OBJECTIVE

To determine outcomes of postdissection thoracoabdominal aneurysms by either open or endovascular repair with fenestrated or branched endografts.

METHODS

A systematic review was conducted for open or endovascular repair of postdissection thoracoabdominal aneurysms, between January 2009 and February 2020. A meta-analysis was performed for postoperative complications and both early and late mortality and reinterventions.

RESULTS

Fifteen noncomparative studies (eight endovascular repair and seven open repair) were suitable for meta-analysis. Overall, 1337 patients were included, 1068 in the open repair group (73% male; mean age 58 years) and 269 in the endovascular repair group (79% male; mean age 65 years). The 30-day mortality was 6% for open repair vs 3% for endovascular repair (P = .35), whereas the 30-day reintervention rate was 3% for open repair vs 1% for endovascular repair (P = .66). The only significant difference was reported for 30-day respiratory complication rate (30% open repair vs 2% endovascular repair; P < .01). The incidence of spinal cord ischemia was 9% for open repair vs 8% for endovascular repair (P = .95). The mean follow-up was 44 months: 48 months (range, 10-72 months) after open repair and 17 months (range, 12-25 months) after endovascular repair (P < .01). Late aortic reinterventions were more frequent after endovascular repair (11% vs 32%; P < .001). The late overall mortality rate was 19% for open repair vs 7% for endovascular repair (P = .08), whereas aortic-related mortality was 7% for open repair vs 3% for endovascular repair (P = .22).

CONCLUSIONS

In the absence of comparative studies, this meta-analysis showed that endovascular repair seems to be a viable alternative for patients unfit for open repair.

Arch replacement with collared elephant trunks: The Siena approach

Objective

To illustrate our experience and results in patients with diffuse aneurysmal disease treated with arch replacement using the Siena collared graft, a device designed in 2002 to improve the elephant trunk technique. Results of the first step surgical implant and the subsequent treatment strategies, with extensive use of endovascular techniques, are reported.

Methods

All aortic arch–replacement procedures using the Siena graft between February 2002 and January 2020 were retrospectively analyzed for early and late clinical outcomes.

Results

Of 146 patients (54 women, 36.9%) with a median age of 69.1 years (interquartile range 58.4-75.0 years), 55 (37.6%) had acute/chronic dissection with false lumen aneurysmal dilatation, 91 (62.3%) had degenerative aneurysms, 45 (30.8%) were redo operations, and 14 (9.5%) had connective tissue disease. First-stage outcomes: 10.9% 30-day mortality (n = 16); 5.4% stroke (n = 8, 6 disabling, 2 nondisabling; 3 fatal); and 0.6% paraplegia. Outcomes for 113 second-stage procedures (77.3%, n = 97 endovascular [66.4%], n = 16 surgical [10.9%]) were 5.3% and 8.8% 30-day and 180-day mortality; no stroke; 10.6% paraplegia. Median follow-up was 5.7 years (range: 0-18.02 years) median survival was 16.65 years (95% lower confidence limit, 10.06 years) with no significant difference between aneurysm and dissection patients. Freedom from further treatment was 87.0% (95% confidence interval, 79.9%-94.7%) at 5 years and 71.4% (95% confidence interval, 71.4%-84.7%) at 10 years; median time to reintervention was 2.59 years (interquartile range, 0.52-5.20 years) with no difference (P = .22) between dissection and aneurysm groups.

Conclusions

Siena collared graft represents a reliable platform for the treatment of diffuse aneurysmal disease. This device offers the flexibility required in the treatment of extended aortic lesions and guarantees the choice of the most appropriate approach for treatment completion. In this context, the availability of hybrid grafts has not modified the role of this device in arch surgery.

Anatomical feasibility of a new off-the-shelf inner branch stent graft (E-nside) for endovascular treatment of thoraco-abdominal aneurysms

OBJECTIVES

METHODS

Preoperative computed tomography scans of patients with atherosclerotic TAAA treated between 2007 and 2019 were reviewed, and the anatomical feasibility of the E-nside graft was verified by a retrospective study (clinicaltrials.gov: NCT03959670) based on the investigational manufacturer instructions for use. The anatomical factors determining overall feasibility were divided into vascular access (AC) feasibility, aortic (AO) feasibility and visceral vessels (VV) feasibility.

RESULTS

Two hundred sixty-eight patients with thoraco-abdominal aneurysms were analysed: the overall treatment feasibility was 43%. AC feasibility was 78%, AO feasibility 60% and VV feasibility 79%. An iliac diameter &lt;8.5 mm excluded 21% of the patients. Aortic feasibility was limited by infrarenal aortic diameter (16%) and size of aortic lumen at the level of visceral vessels (14%). Visceral vessels feasibility was mainly limited by inadequate number (8%) or diameter (12%) of target vessels. Height and orientation of target vessels were adequate in 97% of the cases. Overall feasibility was negatively influenced by female gender (Odds ratio: 3.89; 95% confidence interval 2.03–7.44; P &lt; 0.001): the limiting factors in this subgroup being iliac diameter, infrarenal aortic diameter and visceral vessels diameter.

CONCLUSIONS

The E-nside off-the-shelf stent graft can be theoretically employed in almost half of the cases from an all-comers cohort of patients with TAAA. Improvement of device profile and creation of a dedicated infrarenal component are warranted to increase overall feasibility. Female gender significantly affects the overall feasibility.

Clinicaltrials.gov

NCT03959670.

Total Endovascular Repair of Complex Thoracoabdominal/Abdominal Aortic Aneurysms with a Four-Branched Off-the-Shelf G-Branch™ Stent Graft

BACKGROUND

This study was performed to demonstrate the feasibility and effectiveness of a novel off-the-shelf endograft (G-Branch™; Lifetech Scientific, Shenzhen, China) for the treatment of patients with complex thoracoabdominal/abdominal aortic aneurysms.

METHODS

Three patients (1 with a suprarenal abdominal aortic aneurysm and 2 with thoracoabdominal aortic aneurysms) were treated with the G-Branch endograft involving 2 proximal inner branches for the celiac axis and superior mesenteric artery and 2 distal side directional branches for the bilateral renal arteries.

RESULTS

Technical success was achieved in all 3 patients, and no postoperative complications occurred. At 6-month follow-up, no adverse events occurred, and all the target vessels were patent.

CONCLUSIONS

The newly developed G-Branch device allows the achievement of total endovascular revascularization of the visceral and renal arteries. Use of this device is feasible and effective. Long-term follow-up and a larger clinical trial are necessary to evaluate its reliability and durability.

Mid-Term Outcomes of Complex Endografting for Chronic Post-Dissection Thoracoabdominal Aortic Aneurysms

PURPOSE

To report early and mid-term results of post-aortic dissection thoracoabdominal aneurysms (pD-TAAA) treated by complex endografting in three tertiary referral hospitals.

MATERIALS AND METHODS

A review of all patients with pD-TAAA unfit for open surgery treated with complex endovascular repair from 2012 to 2018 was performed. Simple thoracic endografts (TEVAR) were excluded. Staged procedures in case of extensive aortic coverage were always planned.

RESULTS

In total, 21 patients (16 males, mean age 63 ± 10 years) with pD-TAAA underwent aortic repair by fenestrated or branched thoracoabdominal endografts for visceral vessels. Mean TAAA diameter was 61 ± 6.2 mm. Spinal cord drainage was performed in all patients. A staged approach was used in 12 (57%) cases. Technical success was achieved in 18 (86%) patients. No in-hospital deaths occurred. Two patients experienced transient post-procedural spinal cord ischemia. At 30 days, six type II endoleaks (29%), two type Ic endoleak (9.5%) and one type IIIc endoleak (5%) were reported. At a mean follow-up of 23 ± 13 months, no late aortic-related deaths occurred. Three patients underwent reintervention for type Ic and IIIc endoleaks. No visceral vessel occlusion was observed. Estimated freedom from reintervention at 12 and 24 months was 85.7 ± 0.7%. In 13 cases, TAAA diameter decreased at least 5 mm, while increased > 5 mm in only one case. Complete false lumen thrombosis was achieved in 18 patients (86%).

CONCLUSION

Complex endografting for pD-TAAA showed favorable mid-term results. Staged and carefully planned endovascular procedures may represent a safe and effective therapeutic option in patients deemed at high risk of open repair.

Novel Application of Custom-Made Stent Grafts with Inner Branches for Secondary Treatment After Stent Graft Migration of Previous Infrarenal Endovascular Aortic Repair

PURPOSE

We present a novel application of custom-made stent grafts (CMSGs) with inner branches to incorporate target vessels (TVs) as an alternative to fenestrations or directional branches for secondary treatment after stent graft migration of previous infrarenal endovascular aortic repair (EVAR).

CASE REPORT

Two consecutive patients with stent graft migration of previous EVAR were electively treated at our institution from January 1, 2018 through December 31, 2018. Stent graft migration was defined as radiologic evidence of stent graft displacement >10 mm. In both cases, a proximal type I endoleak was noted, and the residual infrarenal aorta above the previous endograft was unsuitable as the proximal landing zone for a nonfenestrated cuff. Repair was planned by means of a CMSG with 4 inner branches. The procedures were conducted in two-stage fashion to minimize the risk of spinal cord ischemia. The procedures were technically successful with a total of 8 TVs stented. Both patients did not suffer from any early (i.e., up to 30 days) major adverse events, and no access-site complications were noted. At one-year follow-up, computed tomography angiography showed regular placement of the CMSGs, widely patent TVs, absence of any type I or III endoleak, and stable sac size. No late reinterventions were recorded.

CONCLUSIONS

Secondary treatment of stent graft migration after previous EVAR is safe and feasible using CSMGs with 4 inner branches. This technique is effective as showed by stable sac size and 100% freedom from TVI at mid-term imaging follow-up. Larger cohorts and longer follow-up are needed to confirm the preliminary results.

Off-the-Shelf Devices for Treatment of Thoracic Aortic Diseases: Midterm Follow-up of TEVAR With Chimneys or Physician-Made Fenestrations

Purpose: To evaluate the midterm outcomes of thoracic endovascular aortic repair (TEVAR) using chimney grafts (ch-TEVAR) or thoracic stent-grafts with fenestrations made on the back table (f-TEVAR) to treat thoracic aortic dissection (TAD) and thoracic aortic aneurysm (TAA). Materials and Methods: A retrospective analysis was conducted of 474 consecutive patients (mean age 62.3±10.7 years; 346 men) treated with either f-TEVAR (n=110) or ch-TEVAR (n=364) for 352 TADs (81 f-TEVAR and 271 ch-TEVAR) or 122 TAAs (29 f-TEVAR and 93 ch-TEVAR) from 2008 to 2016. The primary endpoints at 30 days and during follow-up were overall mortality, aorta-related mortality, and major complications. The secondary endpoints were endoleak and reintervention. The patency of the target branches, cost of hospitalization, and the use of antiplatelet drugs were also analyzed. Results: Intraoperative type I endoleaks were treated in 69 (14.6%) cases (4 f-TEVAR and 65 ch-TEVAR, p<0.01) to achieve 100% technical success. Four (0.8%) patients died within 30 days [1 (0.9%) f-TEVAR and 3 (0.8%) ch-TEVAR]. Perioperative cerebral ischemia (1 fatal stroke) occurred in 9 (1.9%) patients: (1 f-TEVAR and 8 ch-TEVAR, p=0.39). During the mean follow-up of 50.6±20.0 months (49.5±18.3 months in f-TEVAR and 50.9±20.6 months in ch-TEVAR), 11 (2.3%) patients died of an aorta-related event. Type I endoleak was present in 40 (8.4%) patients (1 f-TEVAR and 39 ch-TEVAR, p<0.01). Eleven (2.3%) patients experienced stent-graft migration and 13 (2.7%) had a retrograde dissection. One hundred (16.9%) of the 593 branch stents occluded (4/75 in the f-TEVAR group and 96/518 in the ch-TEVAR group, p<0.01). The branch reintervention rate was 7.2% (34/474). The f-TEVAR group had a significantly higher probability of freedom from branch occlusion (92%) than the ch-TEVAR group (83%, p=0.007). Conclusion: Off-the-shelf techniques employing chimney grafts and homemade fenestrations are both suitable options for TAD and TAA involving the supra-aortic branches, with a low incidence of reintervention. Fenestrated TEVAR seems to have more favorable short- and midterm outcomes. Further study of these off-the-shelf techniques for aortic arch repair is warranted.