Prediction of long-term mortality for patients with severe asymptomatic de novo carotid stenosis undergoing carotid endarterectomy (PREMY2SE-CEA): Derivation and validation of a novel risk score.

OBJECTIVE: The aim of the present study was to develop and validate a risk prediction model for the prediction of long-term mortality for patients with severe asymptomatic de novo carotid stenosis undergoing carotid endarterectomy (PREMY2SE-CEA). METHODS: Data were collected retrospectively from a dedicated database of consecutive patients who had undergone elective CEA for severe (>70% using the NASCET [North American Symptomatic Carotid Endarterectomy Trial] criteria) asymptomatic carotid stenosis at two Italian University Hospitals from 2008 through 2016. Internal validation of the score was performed after random sampling in a 3:1 fashion. The primary end point of the PREMY2SE-CEA risk score was the 5-year mortality. RESULTS: Of the 1214 patients, 901 were included in the derivation cohort and 313 in the validation cohort. Using multivariable logistic regression with backward elimination, a parsimonious model was derived. A risk score incorporating eight risk factors was generated and found to be highly predictive of long-term mortality in the derivation (odds ratio [OR], 1.38; 95% confidence interval [CI], 1.28-1.41; P < .001) and validation (OR, 1.29; 95% CI, 1.21-1.37; P <.001) cohorts. The discrimination power in the receiver operating characteristic curve analysis was C = 0.775 (95% CI, 0.74-.80), and the optimism-corrected area under the curve in the bootstrapped samples was 0.761 (P < .001). A strong correlation was found between the predicted and actual mortality rates in the validation cohort (r = 0.71; P < .001). CONCLUSIONS: In the present study, we have described the development, evaluation, and validation of a risk prediction model (PREMY2SE-CEA) for long-term mortality after CEA in asymptomatic patients. Physicians could use the PREMY2SE-CEA risk scoring tool to complement their estimates of life expectancy and prompt selective consideration of prophylactic CEA to improve the long-term benefits of interventions.

Association Between the Lockdown for SARS-CoV-2 (COVID-19) and Reduced Surgical Site Infections after Vascular Exposure in the Groin at Two Italian Academic Hospitals.

BACKGROUND: The aim of this study was to evaluate whether the scrupulous hygiene rules and the restriction of contacts during the lockdown owing to the COVID-19 pandemic affected the rate and severity of surgical site infections (SSI) after vascular exposure in the groin at two Italian University Hospitals. METHODS: Starting from March 2020, strict hygiene measures for protection of health care workers (HCW) and patients from COVID-19 infection were implemented, and partly lifted in July 2020. The main exposure for analysis purposes was the period in which patients were operated. Accordingly, study subjects were divided into two groups for subsequent comparisons (preCOVID-19 era: March-June 2018-2019 versus COVID-19 era: March-June 2020). The primary endpoint was the occurrence of superficial and/or deep SSI within 30 days after surgery. The Centers for Disease Control and Prevention definitions were used to classify superficial and deep SSI. RESULTS: A total of 194 consecutive patients who underwent vascular exposure in the groin were retrospectively analyzed. Of those, 60 underwent surgery from April 1, 2018 to June 30 of the same year; 83 from April 1, 2019 to June 30 of the same year; and 51 from April 1, 2020 to June 30 of the same year. The mean age of the study cohort was 75 years and 140 (72%) were males. Patients who were operated in the COVID-19 era were less likely to develop SSI (10% vs. 28%; P = 0.008), including both deep SSI (4% vs. 13%; P = 0.04) and superficial SSI (6% vs. 15%; P = 0.05). After multivariate adjustments, being operated in the COVID-19 era was found to be a negative predictor for development of an SSI (odds ratio [OR] = 0.31; 95% confidence interval [CI] = 0.09-0.76; P < 0.001) or deep SSI (OR = 0.21; 95% CI = 0.03-0.98; P < 0.001). Operative time was also found as independent predictor for the development of deep SSI (OR = 1.21; 95%CI = 1.21-1.52; P = 0.02). Using binary logistic regression, there were no independent predictors of superficial SSI that could be identified. CONCLUSIONS: Vascular exposure in the groin carries a non-negligible risk of SSI. In this study, we provided important insights that are simple and easily viable precautions (such as the universal use of surgical masks both for patients and health care professionals during wound care, the widespread diffusion of hand sanitizers, and the reduction of the number of visitors in the surgical wards) could be promising and safe tools for SSI risk reduction.

Association Between Psoas Muscle Sarcopenia and Long-Term Survival Following Elective Endovascular Aortic Repair.

INTRODUCTION: The aims of this study were as follows: i) to identify the prevalence of sarcopenia in patients undergoing elective endovascular aortic repair (EVAR) for intact abdominal aortic aneurysm; ii) to assess its association with perioperative morbidity and long-term survival; and iii) to estimate its diagnostic accuracy for prediction of 5-year mortality following the intervention. METHODS: We performed a retrospective review of all patients who underwent elective EVAR from January 1, 2010 through December 31, 2019. The lean psoas muscle area (LPMA; cm2 × HU) was calculated on computed tomography angiography by multiplying psoas muscle area and psoas muscle density. The main exposure variable for this study was the presence of preoperative sarcopenia (LPMA value < 350), and the study cohort was divided in two groups for all subsequent analyses. The primary endpoint was all-cause mortality. RESULTS: The study cohort eventually comprised 338 patients who underwent elective EVAR for intact abdominal aortic aneurysm. In the overall population, 154 patients (45.5%) were classified as sarcopenic. At baseline, patients with sarcopenia were older (mean age: 78 ± 5 versus 75 ± 7 y, P < 0.001) and had lower proportion of males (73.5% versus 93.5%, P < 0.001). At 5 y, the estimated survival rates were 52% versus 74% in sarcopenic and nonsarcopenic patients, respectively (P < 0.001). Using multivariate Cox proportional hazard regression, an independent association was identified between sarcopenia and all-cause mortality in the whole cohort (hazard ratio: 2.63, 95% confidence interval: 1.43-3.36, P = 0.009). CONCLUSIONS: Sarcopenia, defined as LPMA <350 as measured on preoperative computed tomography angiography, can be highly prevalent in patients undergoing elective EVAR. Although the intervention remains safe in the short term, presence of sarcopenia was significantly associated to lower long-term survival irrespective of patients' age or gender.

Clinical Impact of Routine Cardiology Consultation Prior to Elective Carotid Endarterectomy in Neurologically Asymptomatic Patients.

OBJECTIVE: The aim was to determine the clinical impact of routine cardiology consultation before carotid endarterectomy (CEA) in neurologically asymptomatic patients, in terms of early and long term cardiovascular events. METHODS: A single centre retrospective review of consecutive patients receiving CEA from 2007 to 2017 for asymptomatic carotid stenosis was performed. Two groups were compared: patients operated on from 2007 to 2012 received a pre-operative cardiology consultation only in selected cases (group A); from 2012 to 2017 patients received a routine pre-operative cardiology consultation (group B). In hospital death, myocardial infarction (MI), heart failure, dysrhythmias, and stroke were compared. A multiple logistic regression was performed to identify predictors of peri-operative complications. Long term overall survival and freedom from fatal cardiovascular events were compared. RESULTS: In total, 878 CEAs were performed in group A and 1094 in group B. Patients in group B were more likely to have had a previous coronary intervention (0.5% vs. 5.1%; p < .001), and to be on dual antiplatelet (4.6% vs. 9.5%; p = .001), statin therapy (60.3% vs. 72.4%; p < .001), and a higher number of cardiac drugs (1.77 ± 1.22 vs. 1.92 ± 1.23; p = .01) at the time of CEA. In hospital mortality was 0.1% for both groups (p = 1.0), and there were no significant differences regarding neurological complications (0.8% vs. 0.3%; p = .20); group B had a significant reduction in overall cardiac complications (3.4% vs. 1.9%; p = .05) and MI (1.6% vs. 0.6%; p = .05). Multivariable analysis confirmed that routine cardiology consultation was an independent predictor of MI (odds [OR] ratio 0.61; p = .04) and overall reduction in cardiac complications (OR 0.28; p = .01). At five years, overall survival was similar (84.2% vs. 82.4%; p = .72), but patients in group B had a significantly lower mortality from cardiovascular events (92.0% vs. 95.8%; p = .04). CONCLUSION: Routine cardiology consultation before elective CEA in patients with asymptomatic carotid stenosis reduced peri-operative cardiac complications and long term fatal cardiovascular events. This approach may be considered to maximise the risk/benefit ratio of CEA in asymptomatic patients.

Early Outcomes of Routine Delayed Shunting in Carotid Endarterectomy for Asymptomatic Patients.

OBJECTIVE/BACKGROUND: The aim was to evaluate early outcomes of carotid endarterectomy (CEA) in asymptomatic patients using a standardised technique based on routine shunting after rapid plaque removal ("delayed"). METHODS: A retrospective review of all asymptomatic patients who underwent CEA during a 10 year single centre experience (January 2007-December 2016) was performed. The technique was based on rapid endarterectomy with distal intimal edge visualisation, followed by routine shunt insertion; subsequent time spent on the manoeuvre and closure were completed under shunting. Primary endpoints were relevant neurological complication rate (RNCR) and death within 30 days. To better identify any difference related to changes in medical therapy, anaesthetic management, and different operators over time, patients were divided into group A (underwent CEA in the first 5 year period) and group B (underwent CEA during the second 5 year period). Univariate analysis of factors associated with RNCR was performed. Operator experience (seniority), expertise (CEA volume per year), and time period were incorporated. RESULTS: In total, 1745 patients matched the inclusion criteria and were enrolled. Altogether, 147 (8.9%) had contemporary contralateral stenosis ≥70% and 58 (3.5%) had contralateral internal carotid artery chronic occlusion. No patient died peri-operatively; major myocardial infarction occurred in 19 patients (1.1%). Overall, peri-operative RNCR was 0.6% (major stroke: n = 6 [0.4%]; minor stroke: n = 4 [0.2%]). RNCR distribution was maintained equally comparing group A and B (0.8% vs. 0.4%; p = 0.17). No differences were found in RNCR when comparing operator experience (p = 0.88) and expertise (p = 0.93). Univariable analysis found diabetes as the only clinical factor influencing RNCR (odds ratio 3.79, 95% confidence interval 1.06-13.50; p = 0.04); none of the other factors, such as time period, operator experience, and expertise, reached statistical significance. CONCLUSIONS: Routine delayed shunting associated with standardisation of the technique seems to be a safe and effective technique and contributes to maintaining the RNCR < 1% over time and independently from operators and other clinical factors.

The PETTICOAT Technique for Complicated Acute Stanford Type B Aortic Dissection Using a Tapered Self-Expanding Nitinol Device as Distal Uncovered Stent.

BACKGROUND: Provisional Extension To Induce Complete Attachment (PETTICOAT) technique has shown good results in the treatment of acute type B aortic dissections (ABAD). Usually, uncovered tubular stainless steel stents are used to promote distal true lumen reattachment. METHODS: We describe the Petticoat technique using a conic self-expanding nitinol device as distal uncovered stent in five cases of complicated ABAD. We used as distal uncovered stent the single-flared E-XL (Jotec-GmbH). RESULTS: In one case, renal arteries were successfully stented through the large cells of the E-XL. No perioperative complications were reported. During follow-up (18-24 months), positive remodeling of the entire aorta occurred in 3 cases; in 1 case with associated thoracoabdominal aneurysm, false lumen thrombosis at the thoracic level with true lumen expansion at the visceral aorta was detected at the 18-month CT angiogram, and in 1 patient with Marfan syndrome, open surgical conversion with the E-XL explantation was performed after 24 months due to aneurysmal evolution at the visceral level. CONCLUSIONS: The E-XL can be successfully used in ABAD. It adapts to different aortic diameters, and its major radial force promotes successful positive remodeling. The open cell structure allows visceral arteries stenting, and it can be removed without complications during open conversion.

Incidence, predictors, and prognostic impact of in-hospital serious adverse events in patients ≥75 years of age undergoing elective endovascular aneurysm repair.

BACKGROUND: This study sought to identify the factors associated with the occurrence of in-hospital serious adverse events after elective endovascular aortic repair (EVAR) in older patients within the Global Registry for Endovascular Aortic Treatment. METHODS: Consecutive patients ages ≥75 years who received GORE EXCLUDER AAA Endoprosthesis (W.L. Gore & Associates, Inc, Flagstaff, AZ) for elective EVAR. Based on the age at index elective EVAR, patients were categorized into 3 groups for subsequent analyses: those ages 75 to 79, 80 to 84, and ≥85 years. The primary end points for this study were the incidence of serious adverse events and all-cause mortality. In-hospital complications were defined according to the International Organization for Standardization 14155 standard (https://www.iso.org/standard/71690.html) and considered serious adverse events if they led to any of the following: (1) a life-threatening illness or injury, (2) a permanent impairment of a body structure or a body function, (3) in-patient or prolonged hospitalization, or (4) medical or surgical intervention to prevent life-threatening illness or injury or permanent impairment to a body structure or a body function. RESULTS: Overall, 1,333 older patients (ages 75-79: n = 601; 80-84: n = 474; and ≥85: n = 258) underwent elective EVAR in the Global Registry for Endovascular Aortic Treatment data set and were included in the present analysis. In total, 12 patients (0.9%) died perioperatively, and 103 patients (7.7%) experienced ≥1 in-hospital serious adverse event, with 18 patients (1.3%) experiencing >1 in-hospital complications. No significant differences were seen between the age groups in the rates of in-hospital serious adverse events (7.3% vs 8.2% vs 7.8%; P = .86). In logistic regression analysis, a history of chronic obstructive pulmonary disease (odds ratio = 2.014; 95% confidence interval, 1.215-3.340; P = .006) and prior requirement for dialysis (odds ratio = 4.655; 95% confidence interval, 1.087-19.928; P = .038) resulted as predictors for occurrence of in-hospital serious adverse events. In the whole cohort, the 5-year survival was 63% for patients who did not experience any in-hospital serious adverse events compared with 51% for those who experienced any complications (P = .003). Using multivariable Cox proportional hazards models, it was found that the occurrence of in-hospital serious adverse events (hazard ratio = 6.2; 95% confidence interval, 1.8-21.317; P = .003) and being underweight (hazard ratio = 7.0; 95% confidence interval, 1.371-35.783; P = .019) were the only independent predictors of death in ≤30 days from the initial intervention. Although age did not independently affect the risk for all-cause mortality in ≤180 days after the initial intervention, increasing age was associated with a higher risk for long-term death (ie, ≥181 days from index elective EVAR) in the multivariable analysis (ages 75-79: hazard ratio = 0.379; 95% confidence interval, 0.281-0.512; P < .001; and 80-84: hazard ratio = 0.562; 95% confidence interval, 0.419-0.754; P < .001). CONCLUSION: After elective EVAR in older patients (ie, ≥75 years), the occurrence of in-hospital serious adverse events appears to increase the risk of death, particularly in ≤180 days after the initial elective EVAR intervention, and might be related to patient baseline characteristics, including history of pulmonary and renal disease.

A Scoping Review on the Incidence, Risk Factors, and Outcomes of Proximal Neck Dilatation after Standard and Complex Endovascular Repair for Abdominal Aortic Aneurysms.

Background: To define proximal neck dilation (PND) after standard endovascular aneurysm repair (EVAR) and fenestrated EVAR (FEVAR), determining: incidence and risk factors; evidence base that links PND to outcomes of patients; recurring themes or gaps in the literature. Methods: We performed a scoping review and included only full-text English articles with follow-up focusing on PND in patients undergoing EVAR or FEVAR, published between 2000 and 2022. The following PICO question was used to build the search equation: in patients with abdominal-aortic-aneurysm (AAA) (Population) undergoing endovascular repair (Intervention), what are the incidence, risk factors and prognosis of radiologically defined PND (Comparison) on short-term and long-term outcomes (Outcomes)? Results: 15 articles were included after review. Measurement protocols for proximal aortic neck (PAN) varied among individual studies and the definition of PND resulted as heterogeneous. Rate of patients with a PND ranged between 0% and 41%. Large proximal neck (>28 mm) and excessive graft sizing (30%) were predictors for PND. New endografts with low outward radial forces and FEVAR seemed to be protective. Surgical conversion was the definitive option in the case of patients unfit for other endovascular treatments. Conclusions: PND is a frequent finding after EVAR and FEVAR. Excessive graft oversizing and large baseline PAN were predictors of neck enlargement, independently by the type of standard endograft used. FEVAR may be considered protective against complications, together with endografts using low outward radial forces. Lifelong radiological follow-up is mandatory.

Major vascular traumas to the neck, upper limbs, and chest: Clinical presentation, diagnostic approach, and management strategies.

Major vascular traumas to the neck, upper limbs, and chest may arise from penetrating and/or blunt mechanisms, resulting in a range of clinical scenarios. Lesions to the carotid arteries may also lead to neurologic complications, such as stroke. The increasing use of invasive arterial access for diagnostic and/or interventional purposes has increased the rate of iatrogenic injuries, which usually occur in older and hospitalized patients. Bleeding control and restoration of perfusion represent the two main goals of treatment for vascular traumatic lesions. Open surgery still represents the gold standard for most lesions, although endovascular approaches have increasingly emerged as feasible and effective options, particularly for management of subclavian and aortic injuries. In addition to advanced imaging (including ultrasound, contrast-enhanced cross-sectional imaging, and arteriography) and life support measures, multidisciplinary care is required, particularly in the setting of concomitant injuries to the bones, soft tissues, or other vital organs. Modern vascular surgeons should be familiar with the whole armamentarium of open and endovascular techniques needed to manage major vascular traumas safely and promptly.

Multiple Parallel Grafts for Urgent Endovascular Repair of a Ruptured Mycotic Aortic Aneurysm.

A 73-year-old woman underwent urgent endovascular repair of a ruptured mycotic aortic aneurysm. A thoracic stent graft was employed as the main endograft, while the celiac trunk and superior mesenteric artery were revascularized by the chimney technique and the renal arteries through the periscope technique. Postoperative computed tomography revealed a Type A1 gutter, treated by detachable coils and peripheral occlusion devices. Six-month follow-up revealed patency of the stent grafts, without endoleak or stent graft infection signs.

A scoping review on the approaches for cannulation of reno-visceral target vessels during complex endovascular aortic repair.

OBJECTIVES: The aim of this study was to assess the approaches to reno-visceral target vessels (TVs) cannulation during branched-fenestrated endovascular aortic repair, determine the evidence base that links these approaches to clinical outcomes and identify literature gaps. METHODS: A scoping review following the PRISMA Protocols Extension for Scoping Reviews was performed. Available full-text studies published in English (PubMed, Cochrane and EMBASE databases; last queried, 31 June 2022) were systematically reviewed and analysed. Data were reported as descriptive narrative or tables, without any statistical analysis nor quality assessment. RESULTS: Fourteen retrospective articles were included. Seven articles studied the use of upper extremity access (UEA) during branched-fenestrated endovascular aortic repair, 3 studied the use of steerable sheaths and 4 included both approaches. A left UEA was used in 757 patients (technical success: 99%, stroke rate: 1-3%) and a right UEA in 215 patients (technical success: 92-98%, stroke rate: 0-13%). Seven studies (1066 patients) described a surgical access only (technical success: 80-99%, stroke rate: 0-13%), while 3 studies (146 patients) described a percutaneous access only (technical success: 83-90%, stroke rate: 3%) and lastly 4 studies compared UEA versus use of steerable sheaths from the transfemoral approach (TFA) (UEA: 563 patients, technical success: 95-98%, stroke rate: 1-8%; TFA: 209 patients, technical success: 98-100%, stroke rate: 0-1%). CONCLUSIONS: Both UEA and TFA as cannulation approaches were associated with high technical success and low perioperative complications. Currently, there is a paucity of high-quality data to provide definitive indication. Optimal UEA in terms of side (left versus right) and approach (surgical versus percutaneous) needs further study.

Peri-Operative Management of Patients Undergoing Fenestrated-Branched Endovascular Repair for Juxtarenal, Pararenal and Thoracoabdominal Aortic Aneurysms: Preventing, Recognizing and Treating Complications to Improve Clinical Outcomes.

The advent and refinement of complex endovascular techniques in the last two decades has revolutionized the field of vascular surgery. This has allowed an effective minimally invasive treatment of extensive disease involving the pararenal and the thoracoabdominal aorta. Fenestrated-branched EVAR (F/BEVAR) now represents a feasible technical solution to address these complex diseases, moving the proximal sealing zone above the renal-visceral vessels take-off and preserving their patency. The aim of this paper was to provide a narrative review on the peri-operative management of patients undergoing F/BEVAR procedures for juxtarenal abdominal aortic aneurysm (JAAA), pararenal abdominal aortic aneurysm (PRAA) or thoracoabdominal aortic aneurism (TAAA). It will focus on how to prevent, diagnose, and manage the complications ensuing from these complex interventions, in order to improve clinical outcomes. Indeed, F/BEVAR remains a technically, physiologically, and mentally demanding procedure. Intraoperative adverse events often require prolonged or additional procedures and complications may significantly impact a patient's quality of life, health status, and overall cost of care. The presence of standardized preoperative, perioperative, and postoperative pathways of care, together with surgeons and teams with significant experience in aortic surgery, should be considered as crucial points to improve clinical outcomes. Aggressive prevention, prompt diagnosis and timely rescue of any major adverse events following the procedure remain paramount clinical needs.

Early outcomes of routine delayed shunting in carotid endarterectomy for symptomatic patients.

BACKGROUND: The role of shunting during carotid endarterectomy (CEA) in symptomatic patients is unclear. The aim was to evaluate early outcomes of CEA with routine "delayed" shunt insertion, for patients with symptomatic carotid stenosis. METHODS: We conducted a single-center retrospective study of symptomatic patients undergoing CEA (2009-2020). All CEAs were performed under general anesthesia using a standardized technique, based on delayed routine shunt insertion after plaque removal. Primary endpoints were 30-days mortality and stroke. A logistic regression was performed to identify clinical and procedural factors associated with postoperative stroke. RESULTS: Two-hundred-sixty-three CEAs were performed for TIA (N.=178, 47%) or acute ischemic stroke (N.=85, 32%). Mean delay of surgery was 6±19 days, and early CEA (<48 hours) was performed in 98 cases (37%). Conventional CEA was performed in 171 patients (67%), eversion CEA in 83 (33%). Early (30-days) mortality was 0.3%. Stroke/death rate was 2.3%. Female sex (OR=5.14, 95% CI: 1.32-24.93; P=0.023), use of anticoagulants (OR=10.57, 95% CI: 2.67-51.86; P=0.001), preoperative stroke (OR=5.34, 95% CI: 1.62-69.21; P=0.006), and the presence of preoperative CT/MRI cerebral ischemic lesions (OR=5.96, 95% CI: 1.52-28.59; P=0.013) were associated with early neurological complications. Statin medication (OR=0.18, 95% CI: 0.04-0.71; P=0.019) and CEA timing <2 days (OR=0.14, 95% CI: 0.03-0.55; P=0.005) were protective from postoperative stroke. CEA outcomes were independent from time period (P=0.201) and operator's volume (P=0.768). A literature systematic review identified other four studies describing the CEA outcomes with routine shunting in symptomatic patients, with a large variability in the selection of patients, surgical technique, and description of the results. CONCLUSIONS: Routine delayed shunting after plaque removal seems to be a safe and effective technique, that contributed to maintain a low complication rate in neurologically symptomatic patients. Statin use and expedited timing were associated with improved outcomes using this technique.