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  • An original bailout solution for renal artery dissection after fenestrated/branched EVAR
    Publication . Lopes, Alice; Gomes, Miguel Lemos; Melo, Ryan; Amorim, Pedro; Sobrinho, Gonçalo; Pedro, Luís M
    Background: Renal artery (RA) dissection may occur during endovascular treatment of thoracoabdominal aneurysms. The aim of this paper is to report the use of kissing coronary stents in the renal bifurcation as a bailout solution for dissection after fenestraded/branched endovascular aortic repair (F/B-EVAR). Methods/Results: A 73-year-old male with an asymptomatic Crawford type 4 thoracoabdominal aneurysm and a concomitant right common iliac artery aneurysm was proposed for endovascular repair, consisting of thoracic endovascular aortic repair plus custom-made device F/B-EVAR, followed by staged bifurcated EVAR plus right-sided IBD. In the control angiogram of the first procedure, a distal occlusion of the left renal artery was observed and attributed to iatrogenic dissection. The 6F sheath was reintroduced and the two main branches of the RA were catheterized with 0.014 wires. Then, two coronary drug-eluting stents were used for a kissing stenting technique with good angiographic and clinical results. As planned, one week later the patient underwent an uneventful second stage procedure. Follow-up CTA at 1 year showed normal patency of the renal stents as well as aneurysm shrinking and no signs of endoleak. Conclusions: In the reported case, the use of coronary stents was a safe and long-lasting solution to rescue an iatrogenic renal artery dissection during F/B-EVAR.
  • Clinical outcomes of aortic arch hybrid repair in a real-world single-center experience
    Publication . Soares, Tony; Melo, Ryan; Amorim, Pedro; Ministro, Augusto; Sobrinho, Gonçalo; Silvestre, Luís; Fernandes E Fernandes, Ruy; Martins, Carlos; Fernandes e Fernandes, José; Pedro, Luís M
    Objective: Aortic arch aneurysmal disease remains a therapeutic challenge. For patients unsuitable for standard open surgery, hybrid repair with debranching of the supra-aortic arteries followed by thoracic endovascular grafting has been shown to be an effective solution. The aim of this study was to report the clinical outcomes of a single-institution experience using hybrid aortic arch repair. Methods: The cases of all consecutive patients submitted to hybrid aortic arch repair between January 2010 and June 2018 were prospectively collected and retrospectively analyzed. The outcomes of the study were 30-day mortality, perioperative complications, 2-year survival, endoleak, and reintervention rates. Results: A total of 35 patients with a median age of 71 years (interquartile range, 62-77 years) were submitted to hybrid aortic arch repair, with a median follow-up of 26.9 months (interquartile range, 2.4-63.6 months). Ten procedures (28.6%) were performed urgently for contained rupture. The most common etiology was degenerative (n ¼ 14 [40.0%]). The proximal landing zones according to the Ishimaru classification were zone 2 in 20 patients (57.1%), zone 1 in 12 patients (34.3%), and zone 0 in 3 patients (8.6%). Early endoleaks were observed in six patients (17.1%), equally distributed between type I and type II. Late endoleaks were identified in 4 of 24 patients (16.7%; type I, n ¼ 2 [8.3%]; type II, n ¼ 1 [4.2%]; and type III, n ¼ 1 [4.2%]). Thirty-day mortality rate was 14.3% (n ¼ 5) with an early death rate of 8.7% (2/23) in elective cases and 30.0% (3/10) in urgent cases (odds ratio [OR], 4.93; confidence interval [CI], 0.68-35.67; P ¼ .128). Except in one patient, 30-day mortality was associated with landing zone 0 or zone 1 (26.7% vs 5.0%; OR, 6.91; CI, 0.68-69.86; P ¼ .141). Three patients (8.6%) suffered a postoperative stroke, and no episodes of spinal cord ischemia were observed. Two-year survival rate was 67.8% (CI, 49.4%- 80.8%). Survival rates were significantly lower with increasing age (hazard ratio [HR], 1.10; CI, 1.03-1.18; P ¼ .004), urgent procedure (HR, 4.80; CI, 1.56-14.80; P ¼ .003), zone 0 or zone 1 (HR, 6.34; CI, 1.73-23.18; P ¼ .001), presence of arrhythmia (HR, 3.76; CI, 1.22-11.62; P ¼ .013), and cerebrovascular disease (HR, 4.12; CI, 1.38-12.35; P ¼ .006). A multivariate analysis identified age (HR, 1.11; P ¼ .047) and zone 0 or zone 1 (HR, 4.93; P ¼ .033) as the only predictors for overall mortality. Conclusions: Hybrid aortic arch repair seems to be an alternative for higher risk patients not suitable for open repair, but selection of patients is crucial and may benefit from further refinement. In this study, worse outcomes were seen in older patients and those who required more proximal landing zones.
  • The evolution of management of type B aortic dissection in a series of 100 consecutive cases in a tertiary center
    Publication . Lopes, Alice; Pedro, Luís M; Melo, Ryan; Moutinho, Mariana; Sobrinho, Gonçalo; Amorim, Pedro; Silvestre, Luís; Fernandes E Fernandes, Ruy; Ministro, Augusto; Martins, Carlos; Almeida, Ana G.; Nobre, Angelo; Pinto, Fausto J.; Fernandes E Fernandes, Jose
    Introduction and objectives: Management of aortic dissection is rapidly evolving. The present study aims to assess paradigm shifts in type B aortic dissection (TBAD) treatment modalities and their outcomes according to clinical presentation and type of treatment. We also aim to assess the impact of endovascular technology in TBAD management in order to define organizational strategies to provide an integrated cardiovascular approach. Methods: We performed a retrospective review with descriptive analysis of the last 100 consecutive patients with TBAD admitted to the Vascular Surgery Department of Centro Hospitalar Universitário Lisboa Norte over a 16-year period. Results were stratified according to treatment modality and stage of the disease. The study was further divided into two time periods, 2003-2010 and 2011-2019, respectively before and after the introduction of a dedicated endovascular program for aortic dissections. Results: A total of 100 patients (83% male; mean age 60 years) were included, of whom 59 were admitted in the acute stage (50.8% with complicated dissections). The other 41 patients were admitted for chronic dissections, most of them for surgical treatment of aneurysmal degeneration. Temporal analysis demonstrated an increase in the number of patients operated for aortic dissection, mainly due to an increase in chronic patients (33.3% in 2003-2010 vs. 64.4% in 2011-2019) and a clear shift toward endovascular treatment from 2015 onward. Overall in-hospital mortality was 14% and was significantly higher in the chronic phase (acute 5.1% vs. chronic 26.8%; OR 5.30, 95% CI 1.71-16.39; p=0.003) and in patients with aneurysmal degeneration, regardless of the temporal phase. Only one death was recorded in the endovascular group. Conclusion: Management of TABD carried an overall mortality of 14% during a 16-year period, but the appropriate use of endovascular technology has substantially reduced in-hospital mortality.
  • Adaptations in the Vascular Surgery Department of the CHULN during the COVID-19 pandemic and impact on overall activity
    Publication . Duarte, António; Melo, Ryan; Lopes, Alice; Rato, João; Rodrigues, Marta; Henriques, Mickael; Gomes, Miguel; Pinto, Vanda; Ribeiro, Karla; Silva, Emanuel; Moutinho, Mariana; Garrido, Pedro; Manuel, Viviana; Ministro, Augusto; Sobrinho, Gonçalo; Silvestre, Luís; Amorim, Pedro; Fernandes E Fernandes, Ruy; Meireles, Nuno; Martins, Carlos; Pedro, Luís M
    With the onset of the SARS-CoV-2 pandemic in early 2020, health services and personnel adapted their resources to mitigate and control the outbreak. These needs inevitably led to adaptations in most medical and surgical departments, including in our Vascular Surgery department. As we are facing a second outbreak of this pandemic, with unpredictable outcomes and repercussions in health services, it is crucial to learn from previous experiences and share strategies to perform the best care to our patients, despite the restrictions that have been imposed. Through this paper, we review the adaptations in Centro Hospitalar Universitário Lisboa Norte and particularly in our department to overcome the pandemic. We also assess the impact of these changes in our activity and compare with the experience of other fellow surgeons. With an upcoming second outbreak, it is crucial to learn from this and other departments’ experiences to overcome a potential health crisis.