Spinal cord protection in open and endovascular approaches to thoracoabdominal aortic aneurysms.

Despite advancements in surgical and postoperative management, spinal cord injury has been a persistent complication of both open and endovascular repair of thoracoabdominal and descending thoracic aortic aneurysm. Spinal cord injury can be explained with an ischemia-infarction model which results in local edema of the spinal cord, damaging its structure and leading to reversible or irreversible loss of its function. Perfusion of the spinal cord during aortic procedures can be enhanced by several adjuncts which have been described with a broad variety of evidence in their support. These adjuncts include systemic hypothermia, cerebrospinal fluid drainage, extracorporeal circulation and distal aortic perfusion, segmental arteries reimplantation, left subclavian artery revascularization, and staged aortic repair. The Authors here reviewed and discussed the role of such adjuncts in preventing spinal cord injury from occurring, pinpointing current evidence and outlining future perspectives.

Trends, factors, and disparities associated with length of stay after lower extremity bypass for tissue loss.

OBJECTIVE: The objective of this study was to determine predictors of increased length of stay (LOS) in patients who underwent lower extremity bypass for tissue loss. METHODS: Using 2011 to 2016 National Surgical Quality Improvement Program vascular targeted databases, we compared demographics, comorbidities, procedural characteristics, and 30-day outcomes of patients who had expected LOS vs extended LOS (>75th percentile, 9 days) after nonemergent lower extremity bypass for tissue loss. We also compared factors associated with short LOS (<25th percentile, 4 days) and extended LOS (>75th percentile, 9 days) vs the interquartile range of LOS (4-9 days). Yearly trends and independent predictors were determined by linear and logistic regression. This study was exempt from Institutional Review Board approval. RESULTS: In 4964 analyzed patients, there were no significant yearly trends or changes in LOS in the recent 5 years (P > .05). Overall 30-day mortality, major amputation, and reintervention rates were 1.6%, 4.5%, and 4.8%, respectively, also with no significant yearly trends (all P > .05). On univariate analysis, nonwhite race, dependent functional status, transfers, dialysis, congestive heart failure, hypertension, beta blockers, distal bypass targets, and extended operative time were associated with extended LOS (P < .05). Extended LOS was also associated with higher rates of 30-day major adverse limb and cardiac events, additional procedures related to wound care, deep venous thrombosis, complications (pulmonary, renal, septic, bleeding, and wound), and discharge to facility but lower 30-day readmission rates. After adjustment for covariates, the independent factors for extended LOS included dialysis, beta blockers, prolonged operative time, reintervention, major amputation, additional procedures related to wound care, deep venous thrombosis, complications (pulmonary, renal, septic, bleeding, and wound), and discharge to facility (P < .05). On the other hand, multivariable analysis showed that patients with expected LOS were significantly more likely to have been of white race or readmitted postoperatively (P < .05). CONCLUSIONS: From 2011 to 2016, there were no significant changes in LOS. Efforts to decrease LOS without increasing readmission rates while focusing on some of the identified factors, including preventable postoperative complications and pre-existing socioeconomic factors, may improve the overall vascular care of these challenging patients.

Endovascular techniques in the treatment of extracranial carotid artery aneurysms.

OBJECTIVE: Carotid artery aneurysms and pseudoaneurysms (extracranial carotid artery aneurysm [ECCAs]) are relatively rare. The gold standard treatment has historically been open repair; however, there is increasing evidence of successful treatment of ECCAs with endovascular techniques. Our study examines the evolving experience with endovascular management of ECCAs at a tertiary care center. METHODS: We performed a retrospective analysis of patients with ECCAs who underwent endovascular interventions at a single institution from 2010 to 2020. With increasing experience, the techniques evolved from covered stents to stent-assisted coil embolization and finally to braided stents and overlapping closed cell stents. RESULTS: There were 18 ECCAs in 17 patients treated with endovascular modalities. The average age was 65.9 years. There were 11 males (64.7%). Seven aneurysms (38.9%) were symptomatic: three patients had painless pulsatile masses, three patients had painful pulsatile masses, and one had transient ischemia attacks. Two (11.1%) were treated with covered stents, 2 (11.1%) were treated with stent-assisted embolization, 2 (11.1%) were treated with flow-diverting braided stents, 10 (55.6%) were treated with overlapping bare metal stents, and 2 (11.1%) were treated with embolization or ligation alone. Technical success was achieved in all patients. The mean duration of follow up was 338 days (range, 8-3039 days). No perioperative or postoperative complications were encountered, including no neurologic deficits and no embolic events. All patients were discharged on postoperative day 1 or 2. All 16 stents (100%) retained vessel patency on follow-up imaging and exclusion of ECCAs was confirmed on postprocedure surveillance imaging. CONCLUSIONS: Endovascular modalities for the management of ECCAs have evolved with experience. Our study suggests that endovascular management is technically feasible as well as clinically effective and suggests an algorithm for navigating the various treatment modalities.

Society for Vascular Surgery best practice recommendations for use of social media.

The use of social media (SoMe) in medicine has demonstrated the ability to advance networking among clinicians and other healthcare staff, disseminate research, increase access to up-to-date information, and inform and engage medical trainees and the public at-large. With increasing SoMe use by vascular surgeons and other vascular specialists, it is important to uphold core tenets of our commitment to our patients by protecting their privacy, encouraging appropriate consent and use of any patient-related imagery, and disclosing relevant conflicts of interest. Additionally, we recognize the potential for negative interactions online regarding differing opinions on optimal treatment options for patients. The Society for Vascular Surgery (SVS) is committed to supporting appropriate and effective use of SoMe content that is honest, well-informed, and accurate. The Young Surgeons Committee of the SVS convened a diverse writing group of SVS members to help guide novice as well as veteran SoMe users on best practices for advancing medical knowledge-sharing in an online environment. These recommendations are presented here with the goal of elevating patient privacy and physician transparency, while also offering support and resources for infrequent SoMe users to increase their engagement with each other in new, virtual formats.

Interplay of Diabetes Mellitus and End-Stage Renal Disease in Open Revascularization for Chronic Limb-Threatening Ischemia.

BACKGROUND: Chronic limb-threatening ischemia (CLTI) in patients with end-stage renal disease (ESRD) confers a significant survival disadvantage and is associated with a high major amputation rate. Moreover, diabetes mellitus (DM) is an independent risk factor for developing CLTI. However, the interplay between end-stage renal disease (ESRD) and DM on outcomes after peripheral revascularization for CLTI is not well established. Our goal was to assess the effect of DM on outcomes after an infrainguinal bypass for CLTI in patients with ESRD. METHODS: Using the Vascular Quality Initiative dataset from January 2003 to March 2020, records for all primary infrainguinal bypasses for CLTI in patients with ESRD were included for analysis. One-year and perioperative outcomes of all-cause mortality, reintervention, amputation-free survival (AFS), and major adverse limb event (MALE) were compared for patients with DM versus those without DM. RESULTS: Of a total of 1,058 patients (66% male) with ESRD, 726 (69%) patients had DM, and 332 patients did not have DM. The DM group was younger (median age, 65 years vs. 68 years; P = 0.002), with higher proportions of obesity (body-mass index>30 kg/m2; 34% vs. 19%; P < 0.001) and current smokers (26% vs. 19%; P = 0.013). The DM group presented more frequently with tissue loss (76% vs. 66%; P < 0.001). A distal bypass anastomosis to tibial vessels was more frequently performed in the DM group compared to the non-DM group (57% vs. 45%; P < 0.001). DM was independently associated with higher perioperative MALE (OR 1.34; 95% CI, 1.06-1.68; P = 0.013), without increased risks of loss of primary patency and composite outcomes of amputation or death. On the mean follow-up of 11.4 ± 5.5 months, DM patients had a significantly higher rate of one-year MALEs (43% vs. 32%; P = 0.001). However, the one-year primary patency and AFS did not differ significantly. After adjusting for confounders, the risk-adjusted hazards for MALE (HR 1.34; 95% CI, 1.06-1.68; P = 0.013) were significantly increased in patients with DM. However, DM was not associated with increased risk of AFS (HR 1.16; 95% CI, 0.91-1.47; P = 0.238), or loss of primary patency (HR 1.04; 95% CI, 0.79-1.37; P = 0.767). CONCLUSIONS: DM and ESRD each independently predict early and late major adverse limb events after an infrainguinal bypass in patients presenting with CLTI. However, in the presence of ESRD, DM may increase perioperative adverse events but does not influence primary patency and AFS at one year. The risk profile associated with ESRD appears to supersede that of DM, with no additive effect.

Managing central venous access during a health care crisis.

OBJECTIVE: During the COVID-19 pandemic, central venous access line teams were implemented at many hospitals throughout the world to provide access for critically ill patients. The objective of this study was to describe the structure, practice patterns, and outcomes of these vascular access teams during the COVID-19 pandemic. METHODS: We conducted a cross-sectional, self-reported study of central venous access line teams in hospitals afflicted with the COVID-19 pandemic. To participate in the study, hospitals were required to meet one of the following criteria: development of a formal plan for a central venous access line team during the pandemic; implementation of a central venous access line team during the pandemic; placement of central venous access by a designated practice group during the pandemic as part of routine clinical practice; or management of an iatrogenic complication related to central venous access in a patient with COVID-19. RESULTS: Participants from 60 hospitals in 13 countries contributed data to the study. Central venous line teams were most commonly composed of vascular surgery and general surgery attending physicians and trainees. Twenty sites had 2657 lines placed by their central venous access line team or designated practice group. During that time, there were 11 (0.4%) iatrogenic complications associated with central venous access procedures performed by the line team or group at those 20 sites. Triple lumen catheters, Cordis (Santa Clara, Calif) catheters, and nontunneled hemodialysis catheters were the most common types of central venous lines placed by the teams. Eight (14%) sites reported experience in placing central venous lines in prone, ventilated patients with COVID-19. A dedicated line cart was used by 35 (59%) of the hospitals. Less than 50% (24 [41%]) of the participating sites reported managing thrombosed central lines in COVID-19 patients. Twenty-three of the sites managed 48 iatrogenic complications in patients with COVID-19 (including complications caused by providers outside of the line team or designated practice group). CONCLUSIONS: Implementation of a dedicated central venous access line team during a pandemic or other health care crisis is a way by which physicians trained in central venous access can contribute their expertise to a stressed health care system. A line team composed of physicians with vascular skill sets provides relief to resource-constrained intensive care unit, ward, and emergency medicine teams with a low rate of iatrogenic complications relative to historical reports. We recommend that a plan for central venous access line team implementation be in place for future health care crises.

Decreased Abdominal Aortic Aneurysm Size Following EVAR in Patients With CT Evidence of Subclinical Thoracic Aortic Dissection.

BACKGROUND: Aneurysm sac regression following endovascular repair (EVAR) of an abdominal aortic aneurysm (AAA) is an established indicator of surgical success. However, even with a completely excluded aneurysm, the degree of aortic sac regression may vary. This study evaluates the relationship between aneurysm sac regression after EVAR and the presence of morphological features in the thoracic aorta that can be associated with a subclinical aortic dissection, termed dissection morphology in this study. METHODS: Patients who underwent EVAR to repair an infrarenal aortic aneurysm at Mount Sinai Hospital between 1996 and 2017 with a postoperative CT scan and a 3-year follow-up scan available for analysis were included in the study. Patients with a type I or type III endoleak were not included. The thoracic aorta was evaluated for dissection morphology on CT scan, which included the presence of aortic dissection, penetrating aortic ulcers, and intramural hematomas. AAA sac regression after EVAR was compared between patients with dissection morphology (n = 157) and patients without those characteristics (n = 141). An independent investigator performed the CT analysis and was blinded to the degree of sac regression. RESULTS: Demographics and comorbid clinical conditions were compared between patients with and without dissection morphology. There were no significant differences in age, gender, smoking habits, or cardiovascular conditions. The median AAA diameter after EVAR, over the course of the study, in patients with dissection morphology decreased by 11.30 mm (-17.20, -3.60) compared to a median change of 0.30 mm (-8.60, 8.60) in patients without dissection morphology features (p < 0.001). Patients with dissection morphology also had fewer type II endoleaks in postoperative follow-up scans (22.9% vs. 53.9%, p < 0.001). Additionally, patients with dissection morphology had longer EVAR operative times (192.00 min [167.25, 230.00] vs.174.00 min [150.00, 215.00], p = 0.004). AAA-related mortality after 3 years was not significantly different between the 2 groups (p = 1.0). CONCLUSIONS: The presence of imaging features consistent with dissection morphology in the thoracic aorta correlated with greater AAA sac regression and fewer type II endoleaks after EVAR. Assessing these imaging features in patients undergoing EVAR may be useful in understanding aneurysm behavior in terms of aneurysm growth, risk of rupture, and outcomes following endovascular surgery. Identifying differential rates of aneurysm sac regression may have implications regarding the role of subclinical dissections in the etiology of AAA development.

An anatomic risk model to screen post endovascular aneurysm repair patients for aneurysm sac enlargement.

BACKGROUND: Follow-up computed tomography angiography (CTA) scans add considerable postimplantation costs to endovascular aneurysm repairs (EVARs) of abdominal aortic aneurysms (AAAs). By building a risk model, we hope to identify patients at low risk for aneurysm sac enlargement to minimize unnecessary CTAs. METHODS: 895 consecutive patients who underwent EVAR for AAA were reviewed, of which 556 met inclusion criteria. A Probit model was created for aneurysm sac enlargement, with preoperative aneurysm morphology, patient demographics, and operative details as variables. RESULTS: Our final model included 287 patients and had a sensitivity of 100%, a specificity of 68.9%, and an accuracy of 70.4%. Ninety-nine (35%) of patients were assigned to the high-risk group, whereas 188 (65%) of patients were assigned to the low-risk group. Notably, regarding anatomic variables, our model reported that age, pulmonary comorbidities, aortic neck diameter, iliac artery length, and aneurysms were independent predictors of post-EVAR sac enlargement. With the exception of age, all statistically significant variables were qualitatively supported by prior literature. With regards to secondary outcomes, the high-risk group had significantly higher proportions of AAA-related deaths (5.1% versus 1.1%, P = 0.037) and Type 1 endoleaks (9.1% versus 3.2%, P = 0.033). CONCLUSIONS: Our model is a decent predictor of patients at low risk for post AAA EVAR aneurysm sac enlargement and associated complications. With additional validation and refinement, it could be applied to practices to cut down on the overall need for postimplantation CTA.

The Use of Branched Endografts for the Aortic Arch in the Endovascular Era.

The endovascular realm has steadily increased its footing in the treatment of the aorta and all of its territories since the foundational case in 1990 by Parodi. The aortic arch, however, continues to be one of the last bastions for treatment via open surgery, which remains the gold standard. Significant comorbidity and prior cardiac surgery prevent open surgery from being the only preferred option, allowing novel endovascular procedures to be considered. Since 1999, more advanced endovascular systems have been created by companies such as Cook Medical, Bolton Medical, Medtronic, Endospan, Gore Medical, and, recently, Kawasumi. The unique shape and angulation of the aortic arch often require the use of custom-made grafts, though arch reconstruction may also include in situ or back-table physician alterations to off-the-shelf devices. The goal of branched endografts is to exclude the aneurysm, while maintaining flow to supra-aortic trunk vessels. Technical success and device durability are limited by the physical constraints of the aortic arch, though greater experience may yield better patient outcomes. Typically, the initial stent-graft (SG) is introduced and deployed into the arch first. Bridging SG are then inserted via axillary or carotid access. Most often, the bridging SG extends from the innominate branch to the distal innominate, and from the left carotid branch to the left common carotid. The major concern is that manipulation of catheters and wires, both within the carotid arteries and aortic arch, create the potential for emboli leading to stroke and paraplegia. The development of endovascular-only techniques for aortic arch pathology will only increase with the aging population of the United States and associated accumulation of comorbidities, making open surgery too grave of a risk.

Hybrid Repair Techniques for Complex Aneurysms and Dissections Involving the Aortic Arch and Thoracic Aorta.

Aortic aneurysms involving the ascending aorta, aortic arch, and descending thoracic aorta have been a challenging entity to surgically treat for over 60 years. Despite the mortality of the disease, early open surgical procedures also had significant morbidity and mortality. The inherent risk in treating multiple anatomic segments simultaneously led to the innovation of the staged elephant trunk (ET) approach by Borst in 1983. To avoid the thoracotomy and associated complications related to the second stage of the procedure, an endovascular completion paradigm was begun by Volodos in 1991. This theoretical hybrid technique combinined shorter and less elaborate open supra-aortic trunk debranching with less invasive endovascular exclusion and has grown since then in terms of different approaches and case volume. The rise of thoracic endovascular aortic repair (TEVAR) combined with debranching bypass has allowed certain lesions to be treated without a large scale intrathoracic open surgical procedure. The complexity and extensiveness of certain lesions, however, has necessitated a hybrid approach such as the frozen elephant trunk (FET) and the standard ET with second stage TEVAR. The former has been used to treat multifocal degenerative aneurysms, chronic dissections with aneurysm, and acute extensive dissections. After conventional proximal aortic replacement, a stent-graft (SG) is delivered antegrade through the transected arch where it is sutured proximally and then "frozen" distally via endovascular means. The FET has the advantage of avoiding a second stage, but potentially introduces a greater rate of spinal cord ischemia compared to the standard elephant trunk. Improvements on the FET procedure have included the development of more advanced hybrid SG such as the Vascutek® Thoraflex™ Hybrid graft (Vascutek Ltd, Scotland, UK), which consists of a distal en,dograft sealed to a proximal four-branched Vascutek Gelweave™ Vascutek Ltd, Scotland, UK) and incorporated sewing collar. While open surgery continues to be a component of complex aortic arch aneurysms, the development of hybrid devices that can bridge the gap between open and endovascular surgery will continue to flourish.

Intermediate Outcomes of Femoropopliteal Stenting in Women: 3-Year Results of the DURABILITY II Trial.

BACKGROUND: This study investigated the effects of gender on the 3-year outcomes of the StuDy for EvalUating EndovasculaR TreAtments of Lesions in the Superficial Femoral Artery and Proximal Popliteal By usIng the Protege EverfLex NitInol STent System II (DURABILITY II) trial. METHODS: A total of 287 patients enrolled in the DURABILITY II trial (prospective and nonrandomized trial) were stratified by gender and evaluated for primary, primary assisted, and secondary patency at 3 years. Clinical scores including changes in ankle-brachial index (ABI) and walking impairment questionnaire (WIQ) scores were evaluated. RESULTS: Overall 190 male and 97 female patients were included for analysis. The 3-year primary, assisted primary, and secondary patency rates for women versus men were 62.5% vs. 58.8%, 68.5% vs. 64.9%, and 72.1% vs. 67.2%, respectively (P < 0.05). Although ABIs at presentation were similar between women versus men (0.64 vs. 0.65, P < 0.05), women had lower ABI scores at 3 years compared with men (0.85 vs. 0.92, P = 0.03). Women versus men had inferior walking distance scores at presentation (13.6 vs. 25.7, P < 0.001), scores were equalized by 2 years (51.6 vs. 60.8, P < 0.05); however, 3-year follow-up demonstrated less durable results for women versus men (37.3 vs. 58.8, P < 0.05). In addition, women had worse WIQ scores for pain, walking speed, and stair climbing. However, the relative change in scores between men and women were comparable, with both groups seeing similar improvements from baseline for these parameters. CONCLUSIONS: Women continue to see clinical improvement after intervention, achieving comparable ABIs and walking distance to men at 2 years. These benefits are diminished at 3-year follow-up with women achieving lower absolute ABI and WIQ parameters compared with men, but improved overall compared with scores at presentation.

Percutaneous intervention for infrageniculate arterial disease in women may be associated with better outcomes when compared to men.

OBJECTIVE: The purpose of this study was to identify any gender-associated differences in the percutaneous treatment of infrageniculate lesions in individuals with chronic critical limb ischemia. METHODS: A retrospective chart review was performed on 112 index tibial lesions in 81 consecutive patients operated on from January 2005 to February 2011. All patients were treated for critical limb ischemia-defined as rest pain or tissue loss. Patient demographics, comorbidities, clinical presentation, vascular studies, lesion characteristics, procedures, and postoperative complications were entered into a database for review. Patients were evaluated for primary patency, secondary patency, limb salvage, and mortality rates. RESULTS: Sixty-three index tibial lesions were treated percutaneously in 43 women, compared to 49 lesions in 38 men. There was a trend toward increased cardiac disease (65.8% men vs 44.2% women; P = .052) and smoking (52.6% men vs 32.6% women; P = .070) in men. Men were more likely than women to have TransAtlantic Inter-Society Consensus (TASC) C and D lesions (83.7% vs 65.1%; P = .023) and to be treated for total occlusion (44.9% vs 25.4%; P = .031). There were no significant gender-related differences in length of stay or postoperative complications. Women had statistically better primary patency rates than men at 12 and 24 months (77.5% ± 6.9% and 72.9% ± 7.8% in women vs 58.7% ± 9.3% and 45.2% ± 9.9% in men; P = .032). Women also had statistically better secondary patency rates than men at 12 and 24 months (90.4% ± 4.8% and 85.1% ± 6.8% in women vs 76.0% ± 8.1% and 58.5% ± 10.8% in men; P = .028). Female gender remained an independent predictor of superior patency even after controlling for gender-related differences in TASC grade. There were no significant differences in limb salvage rates at 12 and 24 months (92.1% ± 4.4% and 85.0% ± 7.9% in women vs 88.3% ± 6.4% and 83.4% ± 7.7% in men; P = .985). Overall survival rates were similar (59.8% ± 7.6% for women and 68.0% ± 8.1% for men at 24 months; P = .351). CONCLUSIONS: Percutaneous intervention may be an equally effective or better treatment option for women with chronic limb ischemia and tibial disease when compared to men. In this study, male gender was an independent predictor of poorer primary and secondary patency rates after infrageniculate intervention. There were no differences in postoperative wound complications between genders. Endovascular procedures may lessen the gap in gender-related treatment outcomes and postoperative complications seen after open arterial reconstructions.

The success of endovascular therapy for all TransAtlantic Society Consensus graded femoropopliteal lesions.

BACKGROUND: Advances in technology and practice have led to increased endovascular management of all TransAtlantic Society Consensus (TASC)-graded lesions. This study aims to evaluate the success of endovascular therapy in the management of TASC-graded femoropopliteal lesions. METHODS: Patients undergoing endovascular treatment for femoropopliteal lesions between July 1999 and August 2008 were divided by TASC scores and evaluated for primary, assisted-primary, and secondary patency rates at 12 and 24 months. Secondary endpoints included limb loss and postoperative complications. RESULTS: A total of 499 femoropopliteal lesions in 427 patients were treated with endovascular interventions. Score distribution for TASC type A, type B, type C, and type D lesions was 26 (5.2%), 140 (28.1%), 168 (33.7%), and 165 (33.1%), respectively. Primary, assisted-primary, and secondary patency rates at 24 months were 77.7 ± 3.2%, 78.9 ± 3.2%, and 86.7 ± 2.6%, respectively, for TASC type A + B lesions, 76.0 ± 3.3%, 77.2 ± 3.2%, and 85.0 ± 2.8%, respectively, for TASC type C lesions, and 61.2 ± 3.8%, 61.2 ± 3.8%, and 78.2 ± 3.2%, respectively, for TASC type D lesions. Compared with TASC type A + B and TASC type C lesions, TASC type D lesions were associated with worse primary and assisted-primary patency rates. However, there was no statistically significant difference in secondary patency between TASC type A + B and TASC type D lesions. The TASC score was not a significant predictor of postoperative complication rates. The 24-month limb salvage rate in patients with TASC type D lesions presenting with critical limb ischemia was 71.9 ± 8.0%. CONCLUSION: It was observed that all femoropopliteal lesions can be safely and effectively managed with endovascular therapy. Although TASC type D lesions do have lower primary and assisted-primary patency rates, high secondary patency rates comparable with other TASC scores can be achieved with effective prevention of limb loss. These data provide evidence to support endovascular therapy as primary management for all femoropopliteal lesions regardless of the TASC score.

Endovascular stent-graft repair of a tuberculous mycotic aortic aneurysm.

Mycobacterium tuberculosis is a rare cause of mycotic aortic aneurysms, which have been classically treated with a combination of antimycobacterial medical therapy and open surgery. Endovascular therapy has been gaining popularity as an alternative to open surgery for mycotic aneurysms. We report a case of a tuberculous mycotic aneurysm of the descending thoracic aorta that was successfully treated with endovascular stent-graft placement with complete resolution of the pseudoaneurysm at 1 year. We also review other cases in the previously published data to identify factors that may affect the outcome of endovascular treatment of tuberculous mycotic aneurysms.

Duplex Ultrasound Can Successfully Identify Endoleaks and Renovisceral Stent Patency in Patients Undergoing Complex Endovascular Aneurysm Repair.

Efficacy of duplex ultrasound (DU) surveillance of complex EVAR such as FEVAR and ChEVAR has not been studied. All patients undergoing FEVAR or ChEVAR at a single multihospital institution were retrospectively reviewed. Postoperative surveillance included DU at 1 month and CTA at 3 months. 82 patients met inclusion criteria including 39 (47.6%) ChEVAR and 43 (52.4%) FEVAR cases. DU identified endoleak with aneurysm sac enlargement in 3 cases requiring reintervention. CTA at 3 months detected 2 new endoleaks without growth and 1 renal artery stent occlusion. Replacement of initial postoperative imaging with DU did not result in any missed endoleaks, deaths, ruptures, or branch occlusions.

Factors that predict outcome of abdominal operations in patients with advanced cirrhosis.

BACKGROUND & AIMS: Patients with cirrhosis have an increased risk of complications during surgery that is relative to the severity of liver disease; it is a challenge to determine which patients are the best candidates for surgery. We performed a hospital-based study to identify factors that might facilitate selection of operative candidates and guide their management. METHODS: A retrospective review was performed of 100 cirrhotic patients (50 classified as Child-Turcotte-Pugh [CTP] A, 33 as CTP B, and 17 as CTP C) who underwent abdominal surgery at an institution specializing in liver medicine and transplant from 2002-2008. Significant univariate variables were evaluated by multivariate logistic regression models to identify factors that correlate with outcome. RESULTS: The overall, 30-day postoperative mortality rate was 7%. The mortality for patients who were CTP A was 2%, CTP B was 12%, and CTP C was 12%; 33 patients had a Model for End-Stage Liver Disease (MELD) score >or=15, with 29% mortality. On the basis of multivariate analyses, risk factors for adverse outcome were American Society of Anesthesiologists (ASA) score >3; procedures being emergent; intraoperative blood transfusion; intraoperative blood loss >150 mL; presence of ascites; total bilirubin level >1.5 mg/dL; and albumin level <3 mg/dL. Addition of serum albumin to MELD score showed that patients with MELD score >or=15 and albumin 2.5 mg/dL) had significantly increased mortality (60% vs 14%, P < .01) and independently increased probability of adverse outcome (odds ratio, 8.4; P = .015). CONCLUSIONS: For patients with MELD scores >or=15, the preoperative albumin level correlates with outcome and could guide operative decisions. Intraoperative packed red blood cell transfusion correlates with adverse outcome and should be limited.

A rare case of familial carotid body tumor in a patient with bilateral fibromuscular dysplasia.

Carotid body tumors (CBTs) are neuroendocrine tumors that arise due to mutations of respiratory cycle enzymes. Fibromuscular dysplasia (FMD) is a disease that causes narrowing of medium-sized arteries. There is no documented link between CBT and FMD. In this article, we report a case of a patient with bilateral carotid FMD and familial CBT, including one in an identical twin who underwent successful surgical excision of the CBT. We describe specific considerations in the management of CBT in patients with concomitant carotid FMD. Also, we review the literature about the genetics of familial CBT and its possible relationship to the etiology of FMD.

New York City Vascular Surgeons during the COVID-19 Pandemic.

The coronavirus disease 2019 (COVID-19) pandemic has forever changed the lives of many across the world. Like many others, New Yorkers witnessed their hospital systems become overwhelmed with a massive influx of critically ill patients. Protocols, workflow, staffing, and individual responsibilities all changed as health care providers scrambled to help where they could. As we see, for the second time this year, a rapid rise in the number of COVID-19 cases in the United States, I wanted to share our experience as vascular surgeons during the first surge from a health care system located in New York City, one of the largest epicenters of the pandemic.

Transradial stenting of a carotid pseudoaneurysm.

Carotid pseudoaneurysms are rare and, if treated endovascularly, are usually approached via the femoral artery. We report the case of transradial stenting of an anastomotic carotid pseudoaneurysm secondary to vertebral transposition through an existing carotid-subclavian bypass.