RESUMO
INTRODUCTION: Preserving pelvic circulation is crucial to minimize the risk of spinal cord and colonic ischemia, especially during the endovascular treatment of extended thoraco-abdominal aneurysm (TAAA) after previous open repair (OR). CASE REPORT: A 78-years-old patient, previously treated for AAA with OR and reimplantation of inferior mesenteric artery (IMA), has presented with 9 cm type-III TAAA and underwent to a multi-stage endovascular procedure. Two thoracic endografts, t-Branch and a straight endograft by Cook Zenith platform were deployed. Renal and superior mesenteric arteries were cannulated and revascularized. Through the left axillary access, a 5F-vertebral catheter was delivered over a 0.035 inch guidewire to selectively catheterize IMA. A post-anastomotic stenosis was stented to advance the sheath and the parallel-graft (Viabahn 7 × 150 mm, Gore) into the artery. Thus, a bifurcated endograft was deployed inside the previous OR. According to the Sandwich-Technique, the stentgraft was deployed parallel and outside the bifurcated device, inside the straight one and 2 cm into the IMA and then reinforced by a bare-metal-stent (Protégé EverFlex™ 7 × 120 mm, Medtronic). Finally, a kissing ballooning of iliac endografts and parallel-graft was performed. The procedure was completed five days later, by stenting the celiac trunk. Post-operative course was uneventful. The 36-months CTA showed the patency of the IMA with no complications. CONCLUSION: The combination of t-Branch and Sandwich-Technique for IMA could be employed to treat extended TAAA with previous OR and reimplanted IMA thus minimizing the risk of colonic and spinal cord ischemia.
Assuntos
Aneurisma da Aorta Abdominal/cirurgia , Aneurisma da Aorta Torácica/cirurgia , Constrição Patológica/cirurgia , Procedimentos Endovasculares/métodos , Artéria Mesentérica Inferior/cirurgia , Stents , Idoso , Angiografia , Artéria Celíaca/cirurgia , Humanos , Masculino , Reimplante , Isquemia do Cordão Espinal/prevenção & controleRESUMO
AIM: Silent brain infarction (SBI) is associated with an increased risk of stroke in patients with asymptomatic carotid stenosis (ACS), and is therefore one of the criteria for performing carotid endarterectomy (CEA). Despite an extensive literature, this issue is still a matter of debate. Aim of the present work was to evaluate incidence and predictors of SBI in patients undergoing CEA for ACS, and to investigate its possible impact on CEA outcome. METHODS: All patients submitted to CEA in a single academic center from 2005 to 2019 were prospectively inserted into a specific database. The presence of SBI was evaluated by preoperative computed tomography (CT), considering exclusively infarctions in the carotid territories from an athero-embolic source. Preoperative characteristics were investigated as possible risk factor for SBI at the uni- and multivariate analysis. The impact of SBI on stroke occurrence after CEA was also evaluated. RESULTS: In the designated period, over a total of 1288 ACS considered and submitted to CEA, 105 (8.2%) were associated with SBI. Male sex, hypertension, dyslipidaemia, smoking, contralateral carotid occlusion and severity of carotid stenosis were associated with SBI at the univariate analysis; preoperative statin therapy showed to be a protective factor. At the multivariate analysis, contralateral carotid occlusion and severity of stenosis were independently associated with SBI (OR: 3.16, 95%CI 1.62-6.18, P=.001; OR: 1.04, 95%CI 1.01-1.07, P=.004, respectively), with statin therapy confirmed as a protective factor (OR: 0.60, 95%CI: 0.40-0.92, P=.002). Overall post-CEA stroke rate was 0.9%, with a higher post-operative risk independently predicted by the presence of SBI (OR:4.23, 95%CI: 1.40-12.73, P=.01). CONCLUSION: SBI is present in 8% of patients with ACS, and is significantly associated with contralateral carotid occlusion and severity of the carotid stenosis. Statin therapy reduces the occurrence of this phenomenon. The presence of SBI should be carefully considered in indication to CEA since it significantly increases the surgical risk.
Assuntos
Infarto Encefálico/epidemiologia , Estenose das Carótidas/cirurgia , Endarterectomia das Carótidas/efeitos adversos , Idoso , Doenças Assintomáticas , Infarto Encefálico/diagnóstico por imagem , Estenose das Carótidas/diagnóstico por imagem , Estenose das Carótidas/epidemiologia , Tomada de Decisão Clínica , Bases de Dados Factuais , Feminino , Humanos , Incidência , Itália/epidemiologia , Masculino , Estudos Prospectivos , Medição de Risco , Fatores de Risco , Índice de Gravidade de Doença , Resultado do TratamentoRESUMO
The pandemic diffusion of the SARS-CoV-2 infection throughout the world required measures to prevent and strategies to control the infection, as well as the reallocation of the hospital structures in order to take care of an increased number of infected patients. Endoscopy Units should be able to perform endoscopic procedures on COVID-19 infected as well as on noninfected patients. The aim of this manuscript is to propose a model for a fast reorganization of the endoscopy department environment in order to safely perform endoscopic procedures in this Pandemic COVID-19 scenario, according to the current advices given by the Scientific Societies.
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Infecções por Coronavirus , Endoscopia do Sistema Digestório/métodos , Planejamento Ambiental , Gastroenterologia/organização & administração , Unidades Hospitalares/organização & administração , Controle de Infecções/métodos , Pandemias , Pneumonia Viral , Betacoronavirus , COVID-19 , Humanos , Equipamento de Proteção Individual , SARS-CoV-2RESUMO
BACKGROUND: Abdominal aortic aneurysm (AAA) is a progressive dilation of the aortic wall, determined by the unbalanced activity of matrix metalloproteinase (MMPs). In vitro and in vivo studies support the pivotal role of MMP-9 to AAA pathogenesis. In our experience, we elucidated the expression of MMP-9 in an ex vivo model of human mesenchymal stem cells isolated from AAA specimen (AAA-MSCs). Thus, MMP-9 inhibition could be an attractive therapeutic strategy for inhibiting AAA degeneration and rupture. Our study was aimed at testing the effect of 3 different drugs (pioglitazone, doxycycline, simvastatin) on MMP-9 and peroxisome proliferator-activated receptor (PPAR)-γ expression in AAA-MSCs. METHODS: Aneurysmal aortic wall segments were taken from AAA patients after the open surgical treatment. MSCs were isolated from AAA (n = 20) tissues through enzymatic digestion. AAA-MSCs were exposed to different doses of pioglitazone (5-10-25 µM), doxycycline (10-25 µM), and simvastatin (10 µM) for 24 h. The effect of each drug was evaluated in terms of cell survival, by crystal violet stain. MMP-9 and PPAR-γ mRNA were analyzed using real-time PCR. RESULTS: AAA-MSCs were not affected by the exposure to the selected drugs, as shown by the analysis of cell viability. Interestingly, MMP-9 mRNA resulted significantly decreased after each treatment, recording a downregulation of 50% in presence of pioglitazone, 90% with doxycycline, and 40% with exposed to simvastatin, in comparison to untreated cells. We further analyzed the expression of PPAR-γ, target of pioglitazone, observing an upregulation in exposed AAA-MSCs to controls. CONCLUSIONS: Our data support the potential therapeutic effect of pioglitazone, doxycycline, and simvastatin on AAA by reducing the MMP-9 expression in a patient-specific model (AAA-MSCs). In addition, pioglitazone drives the increase of PPAR-G, another promising target for AAA therapy. Further studies are necessary to elucidate the mechanism driving this inhibitory pathway, which can reduces the mortality risk associated with AAA rupture.
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Aorta Abdominal/efeitos dos fármacos , Aneurisma da Aorta Abdominal/tratamento farmacológico , Doxiciclina/farmacologia , Células-Tronco Mesenquimais/efeitos dos fármacos , Pioglitazona/farmacologia , Sinvastatina/farmacologia , Aorta Abdominal/metabolismo , Aorta Abdominal/patologia , Aneurisma da Aorta Abdominal/metabolismo , Aneurisma da Aorta Abdominal/patologia , Separação Celular , Sobrevivência Celular/efeitos dos fármacos , Células Cultivadas , Feminino , Humanos , Masculino , Metaloproteinase 9 da Matriz/genética , Metaloproteinase 9 da Matriz/metabolismo , Células-Tronco Mesenquimais/metabolismo , Células-Tronco Mesenquimais/patologia , Pessoa de Meia-Idade , PPAR gama/genética , PPAR gama/metabolismo , Transdução de SinaisRESUMO
OBJECTIVE: Malignant aortic tumors (MATs) are exceedingly rare, and a comprehensive review of clinical and therapeutic aspects is lacking in the literature. The aim of this study was to analyze all known cases of MATs and to identify predictors of patients' survival. METHODS: All patients diagnosed with an aortic tumor treated in a single center along with all case reports and reviews available in the literature through a specific PubMed search using keywords such as "malignant" and "aorta" or "aortic," "tumor," or "sarcoma" or "angiosarcoma" were analyzed. The tumor's primary location, clinical presentation, histologic subtype, and treatment choice were examined. Survival at 1 year, 3 years, and 5 years and the possible preoperative and operative outcome predictors were evaluated using Kaplan-Meier analysis with a log-rank test and by Cox regression for multivariate analysis. RESULTS: In addition to the 5 cases treated in our center, 218 other cases of MAT were reported in the literature from 1873 to 2017. The mean age of the patients was 60.1 ± 11.9 years, and the male to female ratio was 1.59:1. The median overall survival from diagnosis was 8 (7-9) months; 1-, 3-, and 5-year survival rates were 26%, 7.6%, and 3.5%, respectively. Chronic hypertension (P = .03), fever (P = .03), back pain (P = .01), asthenia (P = .04), and signs of peripheral embolization (P = .007) were significant predictors of a poor result. Histologic subtypes had a different impact on survival, with no statistical significance. Compared with other treatment strategies, combined surgical-medical therapy had the best impact on the median survival rate (surgical-medical, 12 [8-24] months; medical, 8 [5-10] months; surgical 7 [2-16] months; no treatment, 2 [0.5-15] months; P = .001). Analyzing exclusively medical approaches, chemotherapy and radiotherapy had the best impact on median survival rate compared with untreated patients (chemotherapy-radiotherapy, 18 [10-26] months; radiotherapy, 16 [8-20] months; chemotherapy, 10 [7-24] months; no medical treatment, 6 [2-16] months; P = .005); these data were not sustained by multivariate analysis. CONCLUSIONS: Aortic tumors are a malignant pathologic condition with a short survival rate after initial diagnosis. Survival is further diminished in the presence of clinical factors such as hypertension, fever, back pain, asthenia, and signs of peripheral embolization. Combined surgical and medical treatment, particularly with chemotherapy and radiotherapy, has shown the highest survival rate.
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Doenças da Aorta/mortalidade , Doenças da Aorta/cirurgia , Neoplasias Vasculares/mortalidade , Neoplasias Vasculares/cirurgia , Humanos , Valor Preditivo dos Testes , Análise de SobrevidaRESUMO
PURPOSE: To compare perioperative and long-term outcomes of endovascular aneurysm repair (EVAR) with flared limbs (FLs) vs iliac branch devices (IBDs) for common iliac artery aneurysm to determine possible differences in outcome. MATERIALS AND METHODS: From 2012 to 2017, all patients with standard EVAR with FLs and aortoiliac anatomy fit for implantation of IBDs were retrospectively selected and compared with patients with standard EVAR and IBDs. The study included 150 patients with 162 iliac treatments: 105 (65%) FLs and 57 (35%) IBDs. Iliac complications (ICs), including internal iliac artery (IIA) loss, limb thrombosis, and type 1b or type 3 endoleak, were considered at 30 days and in the follow-up period. RESULTS: Procedural time and volume of contrast medium were significantly higher in IBD vs FL procedures (90 min ± 33 vs 70 min ± 25, P = .01; 130 mL ± 40 vs 80 mL ± 20, P = .01). Perioperative rate of ICs was similar between IBDs and FLs (0% vs 3.8% [4 IIA loss], P = .25). During 35-month median follow-up, there were 10 ICs, all in FLs group (4 IIA perioperative loss, 4 type 1b endoleak, 2 limb occlusion). By Kaplan-Meier analysis, survival free of ICs was significantly higher in IBD group after 4 years of follow-up (1 y 100% vs 96%, P = .36; 2 y 100% vs 94%, P = .14; 3 y 100% vs 91%, P = .07; 4 y 100% vs 87%, P = .03; 5 y 100% vs 78%, P = .02). CONCLUSIONS: IBDs and FLs have similar perioperative results. IBDs require longer procedural time and greater contrast medium volume; however, they are associated with lower ICs after 4 years of follow-up.
Assuntos
Aneurisma da Aorta Abdominal/cirurgia , Implante de Prótese Vascular/instrumentação , Prótese Vascular , Procedimentos Endovasculares/instrumentação , Aneurisma Ilíaco/cirurgia , Idoso , Idoso de 80 Anos ou mais , Aneurisma da Aorta Abdominal/diagnóstico por imagem , Implante de Prótese Vascular/efeitos adversos , Procedimentos Endovasculares/efeitos adversos , Feminino , Humanos , Aneurisma Ilíaco/diagnóstico por imagem , Masculino , Duração da Cirurgia , Complicações Pós-Operatórias/etiologia , Desenho de Prótese , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Resultado do TratamentoRESUMO
BACKGROUND: Endovascular aortic repair (EVAR) is presently the preferred treatment for abdominal aortic aneurysm; however, it requires the injection of a contrast medium, which can hamper the renal function. Other nontoxic agents such as carbon dioxide (CO2) have been sporadically tested in this setting with uncertain results. The aim of the study is to investigate the efficacy of a new standardized CO2 injection method in standard EVAR procedures. METHODS: Between August and October 2016, 31 consecutive patients (median age 76.1 [interquartile range {IQR}: 7.4] years) were submitted to standard EVAR. Proximal and distal endograft landing zones were identified by the injection of 100 mL of CO2 at 300 mm Hg, through an 11 cm 10F femoral sheath by a specifically manufactured automated injection device (Angiodroid Srl, San Lazzaro, Bologna, Italy). Before EVAR deployment, a confirmative injection with a conventional contrast medium was accomplished. The possibility of precisely visualizing the proximal and distal landing zones by CO2 digital subtraction angiography (DSA) was evaluated considering the contrast medium injection obtained in the same procedure as a gold standard. Similarly, the possible presence of endoleak was assessed at the end of the procedure by the 2 techniques. RESULTS: CO2 DSA allowed to identify the juxtarenal landing zone of the endograft in 19/31 cases (61%) and the distal one in 31/31 (100%). In 12 (39%) cases, CO2 injection failed to visualize at least the lowest renal artery. This occurred in large aneurysms with scarce thrombotic apposition and a luminal volume greater than 95.9 (IQR: 25.2) mm3. Completion CO2 DSA detected type II endoleaks (ELIIs) in 10 cases compared with 2 of conventional contrast media. CONCLUSIONS: The injection of nontoxic CO2 through an automated device allowed to perform EVAR procedures effectively, in the majority of cases. In some cases, a single injection of a minimum amount of conventional contrast medium can be used to overcome the lack of renal artery visualization by CO2. ELIIs are more frequently visualized with CO2 compared with standard contrast medium. Although the CO2 injection technique needs further amelioration particularly in the renal arteries detection, this technique appears promising and possibly substitutive of the standard contrast medium, with significant benefit for the renal function.