Acute Leriche Syndrome Mimicking Spinal Cord Infarction: A Case Report.

Introduction: Acute Leriche syndrome is a rare but potentially life-threatening condition. Pain, pallor, and coldness of the lower extremities serve as clues for suspecting Leriche syndrome. However, the absence of these findings may pose a diagnostic challenge. Case Presentation: An 83-year-old man presented at our emergency department with a complaint of sudden-onset paraparesis. Initially, spinal cord infarction was suspected due to clinical course and neurological findings, but thoracolumbar MRI showed normal findings. On admission, symptoms associated with aortoiliac occlusion were not present, except for muscle atrophy in the thigh. CT angiography revealed aortoiliac occlusion, leading to a diagnosis of Leriche syndrome. Conclusion: Leriche syndrome should be considered as a potential differential diagnosis in patients with acute paraparesis. Muscle atrophy of the lower limbs disproportionate to the clinical course may be the clue for suspecting acute Leriche syndrome with symptoms related to atherosclerotic occlusion which are inconspicuous.

Minimally invasive surgery for esophagogastric junction cancer with Leriche's syndrome-induced ischemic enteritis in the rectum: A case report.

The incidence of esophagogastric junction cancer has been increasing, leading to growing interest in surgical treatment. Leriche syndrome, characterized by occlusion limited to the infrarenal aorta, has not been reported to be associated with ischemic enteritis, and there are no previous reports on the surgical approaches for esophagogastric junction cancer in this disease.We describe the case of a male patient in his fifties with lower abdominal pain and melena who was diagnosed with esophagogastric junction cancer, Leriche syndrome, and ischemic enteritis. Contrast-enhanced computed tomography (CT) showed a hemorrhage from the cancer, occlusion of the abdominal aorta beyond the renal artery branches, and rectal contrast deficiency. Three-dimensional (3D)-CT angiography revealed occlusion from the lumbar artery bifurcation to the distal portions of both common iliac arteries plus numerous collateral pathways, indicating a precarious rectal blood supply. Based on 3D-CT angiography, minimally invasive surgery (MIS) using laparoscopy and thoracoscopy for esophagogastric junction cancer was performed after whole-body control. The patient was discharged without any postoperative complications.Esophagogastric junction cancer with Leriche syndrome can be complicated by ischemic enteritis due to tumor bleeding and fragile collateral pathways. MIS using laparoscopy and thoracoscopy guided by 3D-CT angiography can be safely performed for this disease.

Case study scrub nurse role in aorto-bifemoral reconstruction with transbrachial balloon endoclamping technique.

INTRODUCTION: Aortoiliac arterial disease is a chronic progressive disease which is characterized by steno-occlusive changes in the aorta and iliac arteries. The gold standard for the treatment of patients with the advanced stage of the disease is aorto-bifemoral reconstruction. Patients with circumferential juxtarenal calcifications of the aorta bear a high risk of intraoperative complications, due to difficult cross-clamping in such zones. CASE REPORT: We present a case of a 73-year-old patient who has been admitted due to left leg rest pain and second toe ulceration. Multislice computed tomography showed significant stenosis of the aortoiliac segment with a circumferentially calcified abdominal aorta. Aortobifemoral reconstruction was performed featuring endoluminal occlusion of the aorta using a balloon catheter which was placed through the left brachial artery. The procedure and the postoperative course were uneventful, and the patient was discharged on the sixth postoperative day. CONCLUSION: The hybrid endovascular and open surgery technique presented emerged as a valid alternative for selected high-risk patients. Scrub nurses should be familiarized with endovascular techniques and tools and be aware of the measures to be protected from the harmful effects of ionizing radiation.

Aortoiliac Occlusion in a Rare Instance of Leriche Syndrome Type I in a 65-Year-Old Woman With Chronic Leg Discomfort Refractory to Pregabalin.

Aortoiliac occlusive disease (AIOD), also known as Leriche syndrome, is a form of peripheral artery disease (PAD) that involves narrowing, and in severe cases, complete occlusion, of infrarenal abdominal aorta and/or iliac and femoropopliteal arteries. It classically presents as a triad of symptoms, i.e., leg pain, erectile dysfunction, and abnormally weak or absent femoral pulses. If untreated, it can progress to ischemia and gangrene of the affected regions of pelvis and lower extremities. Like any other PAD, AIOD is most commonly caused by atherosclerosis and usually occurs in strong association with severe cardiovascular diseases. Due to the rarity of this disease, its incidence and prevalence are still unknown making it harder to diagnose especially in patients without the classic risk factors and typical presentation. We report a case of AIOD in a 65-year-old woman who presented with atypical symptoms. She was diagnosed with AIOD type I upon further investigation, which was managed successfully.

Results of endovascular treatments of Trans-Atlantic Inter-Society Consensus C or D aortoiliac occlusive disease involving the aortic bifurcation.

Objectives: The current study aims to report midterm results of patients treated with endovascular intervention, kissing stent, or covered endovascular reconstruction of the aortic bifurcation, for Trans-Atlantic Inter-Society Consensus C or D aortoiliac occlusive disease involving the aortic bifurcation. Methods: Eighteen patients who have intermittent claudication or chronic limb threatening ischemia with Trans-Atlantic Inter-Society Consensus C or D aortoiliac occlusive disease involving the aortic bifurcation enrolled to the study between January 2018 and January 2021. Kissing stents, Advanta V12 (Atrium, Getinge Group), were used in 13 patients, and the covered endovascular reconstruction of the aortic bifurcation technique was used in 4 patients to reconstruct the aortic bifurcation. The patients were followed for a median of 49 months (min. 2, max.58 months). Patency rates, mortality, morbidities, and reinterventions were recorded. Results: The mean age of the patients was 60.4 ± 10 years. Technical success was achieved in 94.4% of the patients, but one patient had to convert to open surgery. Primary patency rate of the remaining patients was 85.6% at 58 months. Target lesion revascularization rate was 11.7%. One patient had successful reintervention for in stent restenosis, and secondary patency rate was 93.3% at 58 months. Limb salvage rate was 84.6% during the follow-up. Two patients had myocardial infarction (11.1%) and one mortality (5.6%) occurred because of cerebrovascular event in the follow-up. Conclusions: Endovascular techniques can be used safely for reconstruction of the aortic bifurcation in Trans-Atlantic Inter-Society Consensus C or D aortoiliac occlusive disease in selected patients who have high risk for open surgery. Covered endovascular reconstruction of the aortic bifurcation is the only technique that showed patency rates approaching open surgery in treatment of aortoiliac occlusive disease involving the aortic bifurcation to date. Although promising patency results were achieved with kissing-covered stents, long-term patency rates were still lower than those achieved with open surgery. Further randomized controlled studies comparing the long-term results of these techniques are needed.

Role of Pelvic Ischemia in Human Lower Urinary Tract Symptoms and Sexual Function Among Patients With Common Iliac Artery Obstruction Undergoing Revascularization Surgery.

PURPOSE: In this case-control study, we explored the relationships among pelvic ischemia, lower urinary tract symptoms (LUTS), and sexual function in patients with common iliac artery steno-occlusive disease, along with the potential therapeutic role of revascularization. METHODS: We recruited 33 men diagnosed with radiologically documented common iliac artery stenosis (>80%) who underwent endovascular revascularization, and 33 healthy controls. Five patients had obstruction of the abdominal aorta (Leriche syndrome). The International Prostate Symptom Score (IPSS), Overactive Bladder Questionnaire, and International Index of Erectile Function were used to evaluate LUTS and erectile function. Medical history, anthropometrics, urinalysis, and blood tests, including levels of serum prostate-specific antigen, urea, creatinine, triglycerides, cholesterol, low-density lipoprotein, high-density lipoprotein, and hemoglobin A1c, were recorded. Uroflow (maximum flow, average flow, voided volume, and voiding time) and ultrasound parameters (prostate volume and postvoid residual [PVR]) were also measured. Patients with moderate-to-severe LUTS (IPSS>7) underwent complete urodynamic investigation. Patients were examined at baseline and 6 months postoperatively. RESULTS: Patients exhibited poorer total IPSS (P<0.001), storage (P=0.001) and voiding symptom (P<0.001) subscores, as well as worse OAB-bother (P=0.015), OAB-sleep (P<0.001), OAB-coping (P<0.001), and OAB-total (P<0.001) scores than control participants. Additionally, erectile function (P=0.002), sexual desire (P<0.001), and satisfaction from intercourse (P=0.016) deteriorated in the patient group. Six months postoperatively, significant improvements were observed in erectile function (P=0.008), orgasm (P=0.021), and desire (P=0.014). Similarly, PVR significantly improved (P=0.012), while fewer patients experienced increased bladder sensation (P=0.035) and detrusor overactivity (P=0.035) upon postoperative urodynamic study. No significant differences were found between patients with bilateral and unilateral obstruction or between either of those groups and Leriche syndrome patients. CONCLUSION: Patients with steno-occlusive disease of the common iliac artery experienced more severe LUTS and sexual dysfunction than healthy controls. Endovascular revascularization alleviated LUTS in patients with moderate-to-severe symptoms and improved bladder and erectile function.

A Patient With Foot Pain Found to Have Leriche Syndrome: A Case Report and Brief Review of the Literature.

Leriche syndrome, a rare and critical complication of peripheral arterial disease (PAD), affects the distal abdominal aorta (infrarenal) and, similar to PAD, is a result of plaque buildup in the arterial lumen. The Leriche syndrome triad includes claudication in the proximal lower extremity, decreased or absent femoral pulses, and, in some cases, impotence. This article presents a patient with an atypical presentation of foot pain who was subsequently found to have Leriche syndrome. The patient was a 59-year-old female, a former smoker, who presented to the emergency department (ED) with atraumatic, acute right foot pain. All right lower extremity pulses were faintly audible on bedside Doppler. Computed tomography with angiography of the abdominal aorta revealed a Leriche-type occlusion of the infrarenal abdominal aorta and left common iliac and a 10 cm right popliteal arterial occlusion. Pharmacological anticoagulation was initiated by the ED. Definitive treatment in this patient included catheter-directed tissue plasminogen activator lysis to the thrombus on the right and placement of kissing stents in the distal aorta without complication. The patient made an excellent recovery and had a complete resolution of her symptoms. PAD is an omnipresent condition and, when untreated, can result in a myriad of high mortality and morbidity conditions such as Leriche syndrome. Collateral vessel formation can make the symptoms of Leriche syndrome vague and inconsistent, often making early recognition difficult. Optimal outcomes hinge on the clinician's ability to efficiently recognize, diagnose, stabilize, and coordinate multidisciplinary involvement of vascular and interventional radiology specialties. Case reports such as this one help to illuminate some of the more infrequent presentations of Leriche syndrome.

A novel technique to reach the contralateral iliac artery in Leriche syndrome.

BACKGROUND/OBJECTIVE: The endovascular approach is the first choice of treatment in high-risk patients suffering from Leriche syndrome. Although many techniques and devices have been developed, there are still difficulties in accessing the true lumen. Herein, we reported a novel technique to increase the support and ease of crossing the lesion. METHOD: We presented a case report of a 45-year-old male patient with Leriche syndrome. The patient refused surgery; therefore, he was scheduled for endovascular treatment. RESULTS: We attempted to cross the right and left common iliac occlusions by intraluminal crossing. The left common iliac artery couldn't be cannulated despite the stiff wires and percutaneous intentional extraluminal revascularization (PIER). Afterward, a cross-over approach was performed from the right side to reach the ostium of the left common iliac artery. To increase the support, a non-absorbable suture was stitched up to the tip of the guiding catheter and kept slightly taut like a lasso. Finally, successful penetration was achieved with the novel assistive technique. CONCLUSION: Endovascular treatment for Leriche syndrome is a precious alternative to open surgery. Intraluminal crossing, PIER, and re-entry devices are the most preferred techniques. Increasing the technical success of intraluminal crossing and PIER leads to an apparent reduction in cost.

Comparison of Aortobifemoral Bypass and Endovascular Treatment for Chronic Infrarenal Abdominal Aortic Occlusion From the CHAOS (CHronic Abdominal Aortic Occlusion, ASian Multicenter) Registry.

PURPOSE: To directly compare the clinical outcomes of aortobifemoral bypass surgery (ABF) and endovascular treatment (EVT) for chronic total occlusion (CTO) of the infrarenal abdominal aorta (IAA). MATERIALS AND METHODS: In this retrospective, multicenter study, we used an international database of 436 patients who underwent revascularization for CTO of the IAA between 2007 and 2017 at 30 Asian cardiovascular centers. After excluding 52 patients who underwent axillobifemoral bypass surgery, 384 patients (139 ABFs and 245 EVTs) were included in the analysis. Propensity score-matched analysis was performed to compare clinical results in the periprocedural period and the long-term. RESULTS: Propensity score matching extracted 88 pairs. Procedure time (ABF; 288 [240-345] minutes vs EVT; 159 [100-205] minutes, p<0.001) and length of hospital stay (17 [12-23] days vs 5 [4-13] days, p<0.001) were significantly shorter in the EVT group than in the ABF group, while the proportions of procedural success (98.9% versus 96.6%, p=0.620), complications (9.1% versus 12.3%, p=0.550), and mortality (2.3% versus 3.8%, p=1.000) were not different between the groups. At 1 months, ABI significantly increased more in the ABF group for both in a limb with the lower (0.56 versus 0.50, p=0.018) and the higher (0.49 versus 0.34, p=0.001) baseline ABI, while the change of the Rutherford category was not significantly different between the groups (p=0.590). At 5 years, compared with the EVT group, the ABF group had significantly better primary patency (89.4±4.3% versus 74.8±4.3%, p=0.035) and survival rates (86.9±4.5% versus 66.2±7.5%, p=0.007). However, there was no significant difference between the groups for secondary patency (100.0%±0.0% versus 93.5%±3.9%, p=0.160) and freedom from target lesion revascularization (TLR) (89.3±4.3% vs 77.3±7.3%, p=0.096). CONCLUSION: Even with recent advancements in EVT, primary patency was still significantly better for ABF in CTO of the IAA. However, there was no difference between the groups in terms of secondary patency and freedom from TLR at 5 years. Furthermore, there was no difference in procedural success, complications, mortality, and improvement in the Rutherford classification during the periprocedural period, with significantly shorter procedure time and hospital stay in the EVT group.

A Fenestrated Balloon Expandable Stent System for the Treatment of Aortoiliac Occlusive Disease.

In aortoiliac occlusive disease, atherosclerotic plaques can occlude the distal aortic bifurcation and proximal bilateral iliac artery and thus cause ischemia in the lower extremity. This is typically treated by restoring patency with balloon expandable stents. Stents are typically deployed in a "kissing stent" configuration into the bilateral iliac arteries and into the distal aortic bifurcation lumen to restore antegrade arterial flow. However, these stents typically become re-occluded by plaques. To understand the reasons for this and look for solutions, we simulated flow dynamics in the aortic bifurcation in the presence and absence of stents using computational fluid dynamics. Results demonstrated that the kissing stent configuration was associated with high levels of vorticity and flow constriction. These prothrombotic variables were alleviated in an alternative, aortoiliac fenestrated (AIFEN), tapered, and balloon-expandable stent design. Our findings suggest that stent design can be tailored to improve flow fields for aortoiliac stenting.

Endovascular Aorto-Iliac Reconstruction vs. Aortobifemoral Bypass as First Choice for a Durable Revascularization for Aorto-Iliac Occlusive Disease.

INTRODUCTION: Aortoiliac occlusive disease (AIOD) is defined as atherosclerotic obstruction of the distal abdominal aorta and iliac arteries. Multiple options exist for management of AIOD including endovascular aortoiliac reconstruction and aortobifemoral bypass. As new technologies are developed, the best approach to manage this condition is evolving. METHODS: We performed a literature review to assess the current state of endovascular aortoiliac reconstruction and aortobifemoral bypass as options for revascularization of aortoiliac occlusive disease. CONCLUSION: Endovascular aortoiliac reconstruction and aortobifemoral bypass are both feasible and clinically effective options for management of aortoiliac occlusive disease. No randomized controlled trial has been performed to show one option to be more effective than the other. Recent literature demonstrates comparable long-term patency, limb salvage and survival among endovascular approaches to the treatment of AIOD with quicker recovery, lower costs and improved quality of life when compared to open aortobifemoral bypass (ABF) surgery. Selection of procedure should be tailored to the individual patient in order to develop an effective long-term successful strategy for management of aortoiliac occlusive disease. Further study is warranted to define durability of these endovascular approaches as well as patient specific characteristics that influence outcomes.

A successful surgical management and outcome for a young man with infrarenal aortoiliac occlusion: A rare case report of Leriche syndrome.

INTRODUCTION AND IMPORTANCE: Leriche syndrome, also known as aortoiliac occlusive disease, is characterized by chronic obstruction of the abdominal aorta and iliac arteries. The disease was first described by Robert Graham in 1814. Leriche syndrome was named after a French surgeon, Rene Leriche, who first operated on the condition. CLINICAL PRESENTATION: We present a 35-year-old male patient who came to our cardiovascular polyclinic in a wheelchair. He had been complaining for a year about severe back pain, leg cramps on both sides, and weakness in both legs. Associated symptoms included fatigue, lower limb tingling, and numbness. Physical examination revealed pulselessness in the popliteal-dorsalis pedis and posterior tibial arteries in both lower extremities, and coldness and ulcers in the dorsum part of the foot. CLINICAL DISCUSSION: Leriche syndrome often presents with a triad of clinical symptoms: (1) intermittent lower extremity vascular claudication, (2) impotence, and (3) weak/absent femoral pulses. This case report contributes to the current literature when any patient has lower limb weakness, pain, and ulcers. It must be considered in our differential diagnosis list for Leriche syndrome. This makes us more aware of the need for early diagnosis and intervention to decrease late complications of ischemia. CONCLUSION: Leriche syndrome, also known as aortoiliac occlusive disease, is considered because of its high morbidity and mortality. This was the first case in Somalia to be successfully managed and operated on by using extra-anatomical bypass, especially axillo-bifemoral bypass, by using it as an emergency measure to save ischemic limbs and shorten the length of time in the hospital.

Revascularization for controlling hypertension and improving cardiorenal failure in Leriche syndrome.

Leriche syndrome usually occurs when atherosclerotic obstructions result in luminal narrowing of the abdominal aorta or iliac arteries and leads to thrombosis; it rarely causes heart or renal failure. We report the case of a 58-year-old Asian man with heart and renal failure as the dominant clinical manifestations of renovascular hypertension caused by Leriche syndrome. We performed an aorto-bifemoral bypass and unilateral renal artery stenting. Post-operative echocardiography showed improved cardiac function, with the left ventricular ejection fraction increasing from 30% before surgery to 54.2% after surgery. Moreover, his heart rate and blood pressure became stable, and his serum creatinine and brain natriuretic peptide levels decreased from 3.46 to 1.08 mg/dL and 685 to 4 pg/mL, respectively. Our case report shows that aorto-bifemoral bypass and unilateral renal artery stenting can effectively treat heart and renal failure resulting from renovascular hypertension caused by Leriche syndrome.

Laparoscopic low anterior resection for rectal cancer associated with Leriche syndrome: a case report.

A 78-year-old male presented with a positive fecal occult blood test. Rectal cancer was detected during lower gastrointestinal endoscopy, and further investigations led to a diagnosis of cT1N0M0 cStage I (UICC classification, 8th edition). Preoperative contrast-enhanced computed tomography (CT) showed that the patient also had Leriche syndrome, which is associated with reduced blood flow to the rectum that may result in ischemic anastomosis during rectal cancer surgery with anastomotic reconstruction. The inferior epigastric arteries often function as collateral pathways to the lower limbs in patients with Leriche syndrome; therefore, care is needed to avoid vascular damage during trocar insertion when performing laparoscopic surgeries. We herein described a case of safe laparoscopic low anterior resection in a rectal cancer patient with Leriche syndrome using vascular architecture images obtained by preoperative CT angiography.

Leriche Syndrome with Digital Gangrene: Is Aortic Bypass Grafting Safe in Intravenous Drug Abusers? A Case Report and Literature Review.

A 47-year-old male with Leriche syndrome presented with digital gangrene due to TASC II type-D occlusion of the distal aorta and common iliac arteries. Open revascularization was performed using a Dacron aorto-biiliac bypass graft; however, the postoperative course revealed a nondisclosed history of intravenous opioid abuse as he went into withdrawal psychosis. Our report highlights ways to mitigate infection risk associated with prosthetic aortic grafts in suspected or confirmed intravenous drug abusers. The literature review suggests alternative strategies like aortoiliac endarterectomy, total endovascular approach using non-covered stents, or a hybrid approach. The primary use of autologous venous grafts should be considered as a last resort so that the veins are retained for future use in case of graft infection. Patient factors like comorbidities, fitness to undergo surgery, anatomical extent of occlusion, and availability of facilities/expertise can further guide the management plan owing to a lack of evidence-based guidelines.

When the aortoiliac bifucation is occluded:Leriche syndrome.

Intoduction: Leriche syndrome is a special type of obliterating arterial disease of the lower limbs which results in thrombotic occlusion of the aortoiliac junction. Case report: We report the case of a 65-year-old patient with known cardiovascular and nephrological pathological history, who presented with acute abdominal pain with intermittent claudication of the lower limbs and in whom clinical examination found abolition of the femoral pulses. Discussion: Doppler ultrasound of the abdominal aorta revealed aortic thrombosis in the lower of the renal segment extended to the iliac bifurcation with damping of upstream circulatory speeds. We supplemented with a CT angiography of the aorta and lower limbs which demonstrated extensive arterial thrombosis from the abdominal aorta to the bilateral external iliac arteries.

Pre and Postoperative Sexual Dysfunction in Patients with Leriche Syndrome-A Prospective Pilot Study.

Background: Recovery of normal arterial inflow in the lower limbs after Leriche's syndrome surgery does not always improve erection. This study assesses the effects of Leriche syndrome on erectile and ejaculatory dysfunction in patients awaiting surgical treatment and the impact of treatment used on sexual dysfunctions. Methods: 35 men with Leriche syndrome aged 61.3 years (SD = 7.74) were assessed for erectile dysfunction. The patients were classified into three groups: aortofemoral bypass (group 1); stenting of the iliac artery (group 2) and aortobifemoral bypass (group 3). The patients were qualified for surgery based on the TASC II guidelines. Follow-up was done 3 months after treatment. Results: The mean preoperative IIEF-5 score was 14. 69 (+/- 5.30), with better preoperative scores obtained by 54.3% of patients. A total of 51.4% and 48.6% of patients, respectively, reported normal erection enabling satisfactory penetration and normal ejaculation before treatment. After surgical treatment, satisfactory erection was reported by 60% of all surgically treated patients, whereas the presence of ejaculation was reported by only 14.2% of patients. Conclusions: The IIEF-5 score is a tool for careful assessment of vascular erectile dysfunctions, it allows for the evaluation of erectile dysfunctions in relation to atherosclerosis risk factors. The treatment strategy used allowed for slight improvement as evidenced to erection but decreasing normal ejaculation.

Stenting of the caudal aorta and aortic trifurcation for the treatment of thrombosis in 7 dogs.

BACKGROUND: Aortic and aortoiliac thrombosis in dogs causes disease and death. OBJECTIVE: To describe the procedure and outcomes for stenting the caudal aorta and aortoiliac trifurcation. ANIMALS: Seven client-owned dogs that underwent aortic/aortoiliac stenting for treatment of thrombosis. METHODS: Retrospective multi-center investigation. Medical records were reviewed for dogs that underwent stenting of the aorta or aortoiliac trifurcation between 2008 and 2020. Information collected included history, signalment, clinicopathologic data, diagnostic imaging, procedure reports, and outcomes. RESULTS: Seven dogs with an occlusive thrombus located at or near the aortic trifurcation were included. Four of 7 dogs were non-ambulatory. Hind limbs were paretic in 5 dogs, paralyzed in 1 dog, and claudication alone was noted in 1 dog. Five of the 7 dogs had protein-losing nephropathy (PLN). Of 5 dogs with PLN, 1 had protein-losing enteropathy (PLE) and controlled hypothyroidism and 1 had caudal aortic chondrosarcoma. Two dogs had no identified underlying disease. Angiography was performed before catheter directed thrombolysis and stent placement. No deaths occurred during the procedure. Postoperative complications included pain (4/7), bruising and edema (3/7), bruising only (1/7), and edema only (1/7). Median survival time (MST) of the 7 dogs was 264 days (range, 1-1053 days). Five of 7 dogs were ambulatory within 2 days of stenting and survived to discharge with a MST of 425 days (range, 208-1053 days). CONCLUSIONS AND CLINICAL IMPORTANCE: Stenting of the aorta and aortoiliac trifurcation can provide an apparently safe and effective treatment with rapid return to ambulation for some dogs with aortic thrombosis.

Endovascular Reconstruction for Total Aorto-Iliac Occlusion.

OBJECTIVES: To analyze outcomes following endovascular treatment of total occlusion of the infrarenal aorta and aorto-iliac bifurcation in a multicenter Italian registry. METHODS: It is a multicenter, retrospective, observational cohort study. From January 2015 to December 2018, 1306 endovascular interventions for aorto-iliac occlusive disease were recorded in the vascular registry. For this analysis, only patients treated for total occlusion of the infrarenal aorta and aorto-iliac bifurcation were included. Early (<30 days) primary outcomes of interest were technical success and mortality. Late major outcomes were primary and secondary patency and freedom from conversion to open aortic surgery. RESULTS: A total of 54 (4.1%) patients met the inclusion criteria. Total percutaneous revascularization was possible in 41 (75.9%) patients and hybrid (endo plus open) intervention in 13 (24.1%) patients. The kissing-stent-graft technique was used in 45 (83.3%) cases, covered endovascular reconstruction of the aortic bifurcation (CERAB) in 5 (9.2%), and a unibody endograft deployed in 4 (7.4%). Technical success was 98.1% (n = 53). There were no episodes of intraoperative or perioperative vessel rupture. Conversion to open surgery was not necessary, and there were no in-hospital deaths. The median patient follow-up time was 16 months (interquartrile range [IQR], 6-27). The estimated primary patency rate was 95.8% ± 0.03 (95% confidence interval [CI]: 85.5-98.9) at 1 year, 91.4% ± 0.05 (95% CI: 76.2-97.2) at 2 years, and 85 ± 0.08 (95% CI: 64.5-94.6) at 3 years. Cox regression analysis demonstrated that sex (hazard ratio [HR]: 0.96; 95% CI: 0.15-6.23, p = 0.963), extent of the occlusion (HR: 0.28; 95% CI: 0.05-1.46, p = 0.130), calcium score (HR: 1.88; 95% CI: 0.31-11.27, p = 0.490), or type of endovascular reconstruction (HR: 0.80; 95% CI: 0.13-5.15, p = 0.804) did not affect primary patency. Secondary patency was 95.5% ± 0.04 (95% CI: 78.4-99.2) at 3 years. No patients required late conversion to open surgical bypass. CONCLUSIONS: Endovascular reconstruction for total occlusion of the infrarenal aorta and aorto-iliac bifurcation was successful using a combination of percutaneous and hybrid revascularization techniques. Estimated patency rates at 3 years of follow-up are promising and are unaffected by the extent of occlusion or type of revascularization.

Leriche syndrome diagnosed due to polytrauma: a case report.

BACKGROUND: Leriche syndrome is caused by atherosclerosis and is often characterized by symptoms such as intermittent claudication and numbness and coldness of the lower limbs. Its exact prevalence and incidence are unknown because it is a rare disease. We report a case of Leriche syndrome diagnosed incidentally on trauma pan-scan computed tomography (CT). CASE PRESENTATION: A 61-year-old Asian male was driving a passenger car and had a head-on collision with a dump truck that required an emergency call. The patient was transported to our hospital in a doctor's helicopter. Physical examination revealed the following vital signs: respiratory rate, 23 breaths per min; SpO2, 98% under a 10-L administration mask; pulse rate, 133 beats per min; blood pressure, 142/128 mmHg; Focused Assessment with Sonography for Trauma, positive; Glasgow Coma Scale assessment, E3V5M6; and body temperature, 35.9 °C. Trauma pan-scan CT showed bilateral mandibular fractures, bilateral multiple rib fractures, bilateral pneumothorax, sternal fractures, hematoma around thoracic spine, small bowel perforation, mesenteric injury, right clavicle fracture, right ankle debridement injury, and thrombotic occlusion from just above the abdominal aortic bifurcation to the bilateral common iliac arteries. Although thrombotic occlusion needed to be differentiated from traumatic aortic injury, the presence of collateral blood vessels led to the diagnosis of Leriche syndrome, and conservative treatment was performed. Damage control surgery was required for the small bowel injuries. From the second day of admission, the patient was treated with continuous intravenous heparin and prostaglandin preparations. However, impaired blood flow and reperfusion injury in the right lower extremity progressed. On the fifth day of admission, right thigh amputation was performed. The patient required renal replacement therapy for 2 weeks starting from the third day of admission. CONCLUSIONS: In this case, conservative therapy was initially chosen for Leriche syndrome. However, the complex factors in the acute phase of trauma led to development of hemorrhagic necrosis, requiring amputation of the lower extremity. Our findings indicate the need to carefully consider the unique factors affecting Leriche syndrome patients when considering treatment indications and choices for trauma.