The role of emergency presentation and revascularization in aneurysms of the peripancreatic arteries secondary to celiac trunk or superior mesenteric artery occlusion.

OBJECTIVE: The goal of this study was to analyze our 10-year experience in the treatment of aneurysms of the collateral circulation secondary to steno-occlusions of the celiac trunk (CT) or superior mesenteric artery (SMA). METHODS: In the last 10 years, 32 celiac-mesenteric aneurysms were detected (25 true aneurysms and seven pseudoaneurysms) in 25 patients with steno-occlusion of the CT or SMA. All cases were diagnosed and treated at our center, with either surgical or endovascular approach. As open surgery, we performed aneurysmectomy and revascularization; as endovascular treatment we performed both the embolization (or graft exclusion) of the aneurysm sac, and embolization of afferent and efferent arteries. RESULTS: Sixteen patients (64%) underwent endovascular treatment, accounting for 66% of aneurysms (21/32). Six patients (24%) and seven associated aneurysms (22%) underwent open surgery. Three asymptomatic patients (12%), representing a total of four aneurysms (12%), were not treated. For endovascular procedures, the technical success rate was 90%, with a 56% clinical success rate. For open surgery, clinical and technical success were achieved in five patients (83%) and six procedures (86%), respectively. Sixty-eight percent of patients (17/25) were treated in an emergency setting, using either endovascular (88%) or open (12%) approaches. Although technical success was achieved in more than 85% of these procedures for both approaches, clinical success was reached less frequently among patients with an acute presentation (P = .041). Regardless of the type of treatment, CT or SMA revascularization during the first procedure did not show an increased rate of clinical success (P = .531). However, we reported four cases of visceral ischemia after an endovascular approach without revascularization, with three open surgical corrections required. The mean follow-up was 41 months (range, 0-136 months). CONCLUSIONS: Neither of the approaches described qualifies as a standard optimal choice. We suggest a tailored therapeutic approach based on the clinical condition at the time of diagnosis and specific vascular anatomy.

Risk Scoring Systems to Predict Long-Term Mortality After Carotid Endarterectomy in Asymptomatic Patients: A Systematic Review.

The present review was conducted to describe current published risk scoring systems to predict late mortality after carotid endarterectomy (CEA). The aim of the study is to identify simple, clinical, and reproducible tools to predict life expectancy in patients with asymptomatic carotid artery stenosis candidates to CEA and therefore which patients may benefit from surgery, reaching the goal of life expectancy >3 to 5 years, recommended by guidelines. Advantages, disadvantages, feasibility, simplicity, and reproducibility of each selected score were analyzed. Rigorous statistical analysis and validation of the score are essential components to produce a calibrated and usable score. Future studies should address the impact of using these tools in CEA candidates for asymptomatic disease.

Medical Therapy Before Carotid Endarterectomy: Changes Over a 13-Year Period and Comparison Between Asymptomatic and Symptomatic Patients.

We evaluated the evolution of chronic medical therapy in patients admitted for carotid endarterectomy (CEA) over a 13-year period and to analyze the difference in medical treatment between symptomatic and asymptomatic patients. A retrospective study was conducted on patients treated between 2002 and 2015. The use of antiplatelets (acetylsalicylic acid [ASA], ticlopidine, and clopidogrel), oral anticoagulant therapy (OAT), statins and antihypertensives (angiotensin-converting enzyme inhibitors [ACE-I]/angiotensin receptor blockers [ARBs], ß-blockers [BB]) administration was evaluated. During the study period, 852 CEAs were performed in 681 (79.9%) asymptomatic patients. Prescription rate increased significantly for ASA (+29.2%), clopidogrel (+10.3%), statins (+60.8%), ACE-I/ARBs (+31.1%), and BB (+19.3%; all Ptrend < .05). No significant modification was observed for ticlopidine and OAT (ticlopidine use was abandoned in the recent years, but this difference was not significant due to the small numbers). A lower medication intake was recorded for symptomatic patients when compared with asymptomatic patients, except for OAT and clopidogrel. Our analysis suggests that medical therapy has changed over the years for patients with carotid stenosis. Although this is a big step toward best medical therapy, preoperative drug therapy remains suboptimal in symptomatic patients.

Development and validation of a score to predict life expectancy after carotid endarterectomy in asymptomatic patients.

OBJECTIVE: Recent improvement of best medical treatment for carotid stenosis has sparked a debate on the role of surgery-identification of patients who may benefit from carotid endarterectomy (CEA) is crucial to avoid overtreatment. An expected 5-year postoperative survival is one of the main selection criteria. The aim of this study was the development of a score for predicting survival of asymptomatic patients after CEA. METHODS: Our score was derived from a retrospective analysis of 648 consecutive asymptomatic patients from a single hospital. External validation of the score was then performed on a second cohort of 334 asymptomatic patients from two different hospitals in the same area. Factors associated with reduced postoperative survival within the derivation cohort (DC) were identified and tested for statistical significance. Each selected factor was assigned a score proportional to its ß coefficient: 1 point for chronic obstructive pulmonary disease, diabetes mellitus, coronary artery disease, and lack of statin treatment; 4 points for age 70 to 79 years and creatinine concentration ≥1.5 mg/dL; 8 points for age ≥80 years and dialysis. The DC was divided into four groups based on individual scores: group 1, 0 to 3 points; group 2, 4 to 7 points; group 3, 8 to 11 points; and group 4, ≥12 points. Group-specific survival curves were calculated. The validation cohort (VC) was stratified according to the score. Survival of each of the four risk groups within the VC was compared with its analogue from the DC. RESULTS: Median follow-up of the DC and VC was, respectively, 56 and 65 months. Intercohort comparison of 5-year survival was 84.7% ± 1.7% vs 85.2% ± 2% (P = .41). Group-specific 5-year survival within the DC was 97% ± 1.5% (group 1), 88.4% ± 2.2% (group 2), 69.6% ± 4.7% (group 3), and 48.1% ± 13.5% (group 4; P < .0001). Five-year survival within the VC was 95.5% ± 2% (group 1), 89.5% ± 2.7% (group 2), 65% ± 6.1% (group 3), and 44.8% ± 14.1% (group 4; P < .0001). Intercohort comparison of group-specific survival curves showed close similarity throughout the groups. CONCLUSIONS: Our score is a simple clinical tool that allows a quick and reliable prediction of survival in asymptomatic patients who are candidates for CEA. This selective approach is crucial to avoid unnecessary surgery on patients who are less likely to survive long enough to experience the benefits of this preventive procedure.

Comparison of posterior and medial approaches for popliteal artery aneurysms.

BACKGROUND: Long-term results of the posterior approach (PA) for the treatment of popliteal artery aneurysms are lacking in the literature. We reviewed our experience during a 13-year period in patients with popliteal artery aneurysms, comparing those treated through a PA with those operated on through a standard medial approach (MA). METHODS: Clinical data of all patients treated between February 1998 and October 2011 were retrospectively reviewed and outcomes analyzed. The Kaplan-Meier method was used to estimate survival, and χ(2), Wilcoxon, and log-rank tests were used for analysis. RESULTS: A total of 77 aneurysms were treated in 65 patients (64 men). Mean age was 68 years (range, 48-96 years). Thirty-six aneurysms were asymptomatic (47%). Mean sac diameter was 2.8 ± 1 cm. A PA was used in 43 PAAs (55%) and an MA in 34. The PA and MA patients differed significantly in age (median being older), smoking history (more frequent in PA), and renal insufficiency and cerebrovascular disease (higher for MA). In 42 cases the aneurysm was symptomatic (54.5%) for chronic limb ischemia, with intermittent claudication in 18 patients, acute ischemia in 17, blue toe syndrome in 3, compression on adjacent structures in 3, and rupture with severe acute pain in 1. All PA repairs consisted of aneurysmectomy with an interposition graft with end-to-end anastomoses; among MA repairs, 22 interposition grafts and 12 bypasses were performed. A polytetrafluoroethylene graft was used in 54 cases. Five patients had an early thrombosis (two PA and three MA). No perioperative deaths occurred. Two patients sustained a permanent (PA) and a temporary (MA) peroneal nerve lesion. There were no early amputations. The median in-hospital stay was longer for MA (10 days) than for PA (7 days; P = .02). Median follow-up was 58.8 months (range, 5 days-166 months). Nine patients died during follow-up of unrelated causes. The 5-year primary and secondary patency rates were 59.6% ± 8.6% and 96.5% ± 3.4%, respectively, for PA, and 65.1% ± 11.1% and 79.4% ± 9.7%, respectively, for MA (P = .53 for primary patency rate and P = .22 for secondary patency rate). Limb salvage was 100% at 5 years and 93.3% ± 6.4% at 10 years for PA and 91.1% ± 6.3% at both time points for MA (P = .28). CONCLUSIONS: PA and MA both achieved satisfactory results in primary and secondary patency rates, as well as limb salvage, during long-term follow-up. The differences between the two groups were small and not statistically significant. PA was burdened by similar postoperative nerve and wound complications compared with MA. The in-hospital stay after PA was significantly lower.

Anastomotic false aneurysm of the aorta: closure with a "sandwiched" coil.

PURPOSE: To describe the treatment of a noninfected saccular anastomotic false aneurysm (AFA) of the abdominal aorta with the use of a single "sandwiched" coil. CASE REPORT: A 65-year-old man presented with a saccular AFA of the distal anastomosis exactly at the level of the aortic bifurcation 1 month after open abdominal aortic aneurysm repair. Endograft exclusion was not attempted because an aortouni-iliac configuration would have sacrificed a patent iliac axis. Coil embolization was the preferred strategy. Use of 3-dimensional rotational angiography and 3-dimensional roadmap was necessary to cannulate the neck of the AFA. Complete thrombosis and shrinkage of the sac was achieved by "sandwich coiling" of the neck after deployment of a single pushable hydrogel-coated coil. Imaging at 9 months postprocedure showed no sign of the aneurysm sac. CONCLUSION: This novel technique can be used for selected saccular AFAs with a narrow neck. In such cases, sandwich coiling may avoid sacrifice of a patent iliac axis.

Use of ultrasound debridement as an adjunctive tool for treating infected prosthetic vascular grafts in the lower extremities.

BACKGROUND: To evaluate the role of an ultrasound (US) debridement system to treat conservatively patients with poor medical conditions who presented with infection of a prosthetic vascular graft in the lower extremities. METHODS: Data of all patients who underwent debridement of the grafts and/or surrounding tissue using an ultrasonic generator (Genera, Italia Medica, Milan, Italy) were recorded and retrospectively reviewed. Based on cultures, patients received specific antibiotic therapy. Partial graft removal, sartorius muscle flap rotation, or negative pressure wound treatment (NPWT) was selectively used. Early and late morbidity and mortality and recurrence were analyzed. RESULTS: Thirteen patients (median age, 72 years; range, 57-92 years; 8 men) were treated (12 Szilagyi grade III and 1 grade II infections) with US debridement without removing the graft (8 cases) or with partial excision and "in situ" reconstruction with a silver prosthetic graft (5 cases). Sartorius flap rotation was associated in 6 and NPWT in 1 case. One patient died perioperatively because of pulmonary edema because of sepsis secondary to treatment failure. Estimated freedom from reinfection was 90.9 ± 9% at 6 months and 77.9 ± 14% at 1 and 2 years. Estimated limb survival was 78.7 ± 13% at 6 months, 65.6 ± 16% at 1 year, and 52.5 ± 18% at 2 years. CONCLUSIONS: US debridement proved to be a valuable aid in the treatment of patients with infected grafts and poor medical conditions. Used in conjunction with antibiotics, it allowed us to be more conservative without compromising the chance of success.

Unusual clinical presentation of primary aortoduodenal fistula.

Primary aorto-enteric fistula (PAEF) develops between the native aorta and the gastro-intestinal tract, in the presence of an abdominal aortic aneurysm. It is a rare, life-threatening condition and appears to be less frequent than secondary aorto-enteric fistula, which is associated with previous aortic prosthetic reconstruction. When untreated, the overall mortality rate is almost 100%. Diagnosis may be challenging until the occurrence of a massive haemorrhage. In the presence of gross contamination, patients tend to a worse prognosis. Extra-anatomical bypass and repair of the enteric tract is the treatment of choice in case of gross contamination. In situ reconstruction is often reported in cases of mild bacterial contamination. Endovascular treatment has recently become a valid option in haemodynamically unstable patients, but a staged approach, with delayed surgical treatment, seems advisable.

Access and hemostasis: femoral and popliteal approaches and closure devices-why, what, when, and how?

This article reviews the arterial access sites used in the treatment of peripheral arterial disease, including common femoral, superficial femoral, and popliteal arterial puncture. The optimal approach and techniques for arterial puncture will be described and technical tips and tricks will be discussed. An overview of the currently available vascular closure devices will also be presented. Indications, contraindications, and complications will be discussed. Results of the use of vascular closure devices compared with manual compression will be presented.