Aortoiliac occlusive disease (AIOD) refers to the stenosis and occlusion of the distal abdominal aorta and(or) bifurcation of the aortoiliac artery,which is mainly caused by atherosclerosis,leading to pelvic and lower limb ischemia.Open surgery has always been the main treatment for complex AIOD.However,in recent years,with the development of endovascular surgery technologies and medical instruments,its treatment concept has been greatly changed.More and more clinical evidence has proved that the long-term efficacy of endovascular therapy is not inferior to that of traditional open surgery,so minimally invasive endovascular therapy has become the preferred treatment for AIOD.
Aortic Diseases/surgery* ; Arterial Occlusive Diseases/surgery* ; Atherosclerosis ; Endovascular Procedures ; Humans ; Iliac Artery/surgery* ; Treatment Outcome ; Vascular Patency

Objective To explore the cause and the treatment strategies of iliac limb occlusion after endovascular abdominal aortic aneurysm repair(EVAR). Methods The patients receiving EVAR in PUMC Hospital from January 2015 to December 2020 were retrospectively analyzed.Sixteen(2.7%)cases of iliac limb occlusion were identified,among which 6,9,and 1 cases underwent surgical bypass,endovascular or hybrid procedure,and conservative treatment,respectively. Results Fifteen cases were successfully treated.During the 10.6-month follow-up,2 cases receiving hybrid treatment underwent femoral-femoral bypass due to re-occlusion of the iliac limb. Conclusions Iliac limb occlusion mostly occurs in the acute phase after EVAR,and endovascular or hybrid treatment can be the first choice for iliac limb occlusion.It is suggested to focus on the risk factors for prevention.
Aortic Aneurysm, Abdominal/surgery* ; Blood Vessel Prosthesis ; Blood Vessel Prosthesis Implantation/adverse effects* ; Endovascular Procedures ; Humans ; Iliac Artery/surgery* ; Retrospective Studies ; Risk Factors ; Stents ; Treatment Outcome

BACKGROUND: Although endovascular therapy has been widely used for focal aortoiliac occlusive disease (AIOD), its performance for extensive AIOD (EAIOD) is not fully evaluated. We aimed to demonstrate the long-term results of EAIOD treated by endovascular therapy and to identify the potential risk factors for the loss of primary patency. METHODS: Between January 2008 and June 2018, patients with a clinical diagnosis of the 2007 TransAtlantic Inter-Society Consensus II (TASC II) C and D AIOD lesions who underwent endovascular treatment in our institution were enrolled. Demographic, diagnosis, procedure characteristics, and follow-up information were reviewed. Univariate analysis was used to identify the correlation between the variables and the primary patency. A multivariate logistic regression model was used to identify the independent risk factors associated with primary patency. Five- and 10-year primary and secondary patency, as well as survival rates, were calculated by Kaplan-Meier analysis. RESULTS: A total of 148 patients underwent endovascular treatment in our center. Of these, 39.2% were classified as having TASC II C lesions and 60.8% as having TASC II D lesions. The technical success rate was 88.5%. The mean follow-up time was 79.2 ± 29.2 months. Primary and secondary patency was 82.1% and 89.4% at 5 years, and 74.8% and 83.1% at 10 years, respectively. The 5-year survival rate was 84.2%. Compared with patients without loss of primary patency, patients with this condition showed significant differences in age, TASC II classification, infrainguinal lesions, critical limb ischemia (CLI), and smoking. Multivariate logistic regression analysis showed age <61 years (adjusted odds ratio [aOR]: 6.47; 95% CI: 1.47-28.36; P = 0.01), CLI (aOR: 7.81; 95% CI: 1.92-31.89; P = 0.04), and smoking (aOR: 10.15; 95% CI: 2.79-36.90; P < 0.01) were independent risk factors for the loss of primary patency. CONCLUSION Endovascular therapy was an effective treatment for EAIOD with encouraging patency and survival rate. Age <61 years, CLI, and smoking were independent risk factors for the loss of primary patency.
Arterial Occlusive Diseases/surgery* ; Endovascular Procedures/methods* ; Female ; Humans ; Iliac Artery/surgery* ; Kaplan-Meier Estimate ; Male ; Middle Aged ; Retrospective Studies ; Risk Factors ; Stents ; Survival Rate ; Treatment Outcome ; Vascular Patency

Allografts ; Hepatectomy ; methods ; Hepatic Veins ; surgery ; Humans ; Iliac Artery ; surgery ; Liver Transplantation ; Middle Aged

PURPOSE: To summarize and analyze the early treatment of multiple injuries combined with severe pelvic fractures, especially focus on the hemostasis methods for severe pelvic fractures, so as to improve the successful rate of rescue for the fatal hemorrhagic shock caused by pelvic fractures. METHODS: A retrospective analysis was conducted in 68 cases of multiple trauma combined with severe pelvic fractures in recent 10 years (from Jan. 2006 to Dec. 2015). There were 57 males and 11 females. Their age ranged from 19 to 75 years, averaging 42 years. Causes of injury included traffic accidents in 34 cases (2 cases of truck rolling), high falling injuries in 17 cases, crashing injuries in 15 cases, steel cable wound in 1 case, and seat belt traction injury in 1 case. There were 31 cases of head injury, 11 cases of chest injury, 56 cases of abdominal and pelvic injuries, and 37 cases of spinal and limb injuries. Therapeutic methods included early anti-shock measures, surgical hemostasis based on internal iliac artery devasculization for pelvic hemorrhage, and early treatment for combined organ damage and complications included embolization and repair of the liver, spleen and kidney, splenectomy, nephrectomy, intestinal resection, colostomy, bladder ostomy, and urethral repair, etc. Patients in this series received blood transfusion volume of 1200-10,000 mL, with an average volume of 2850 mL. Postoperative follow-up ranged from 6 months to 1.5 years. RESULTS: The average score of ISS in this series was 38.6 points. 49 cases were successfully treated and the total survival rate was 72.1%. Totally 19 patients died (average ISS score 42.4), including 6 cases of hemorrhagic shock, 8 cases of brain injury, 1 case of cardiac injury, 2 cases of pulmonary infection, 1 case of pulmonary embolism, and 1 case of multiple organ failure. Postoperative complications included 1 case of urethral stricture (after secondary repair), 1 case of sexual dysfunction (combined with urethral rupture), 1 case of lower limb amputation (femoral artery thrombosis), and 18 cases of consumptive coagulopathy. CONCLUSION The early treatment of multiple injuries combined with severe pelvic fractures should focus on pelvic hemostasis. Massive bleeding-induced hemorrhagic shock is one of the main causes of poor prognosis. The technique of internal iliac artery devasculization including ligation and embolization can be used as an effective measure to stop or reduce bleeding. Consumptive coagulopathy is difficult to deal with, which should be detected and treated as soon as possible after surgical measures have been performed. The effect of using recombinant factor VII in treating consumptive coagulopathy is satisfactory.
Adult ; Embolization, Therapeutic ; methods ; Factor VII ; administration & dosage ; Female ; Fractures, Bone ; complications ; therapy ; Hemostasis, Surgical ; Humans ; Iliac Artery ; surgery ; Injury Severity Score ; Ligation ; Male ; Middle Aged ; Multiple Trauma ; complications ; therapy ; Pelvic Bones ; injuries ; Prognosis ; Recombinant Proteins ; administration & dosage ; Retrospective Studies ; Shock, Hemorrhagic ; etiology ; prevention & control ; Young Adult

OBJECTIVE: To analyze risk factors of pelvic ischemia after occlusion of the internal iliac artery during endovascular aneurysm repair (EVAR) surgery. METHODS: The clinical data, preoperative CT angiography (CTA) findings and follow-up results of 82 patients with unilateral embolization of internal iliac artery undergoing EVAR were analyzed retrospectively. Among 82 patients, pelvic ischemic symptoms were developed in 20 patients (ischemia group) and the remaining patients served as control group. The risk factors for pelvic ischemia after occlusion of internal iliac artery during EVAR surgery were explored using univariate and multivariate analysis, and the clinical value was evaluated using ROC curves. RESULTS: The univariate analysis showed that the numbers of the contralateral internal iliac artery and the ipsilateral deep femoral artery stenosis in the pelvic ischemia group were less than those in the control group (both <0.05). Multivariate Logistic regression analysis showed that the decreased number of internal iliac artery branches (=8.383, 95%:1.469-47.841, <0.05) was an independent risk of pelvic ischemia. The ROC curve analysis showed that of the decreased number of contralateral internal iliac artery branches for predicting the incidence of pelvic ischemia was 0.816; when the number of 3.5 was taken as cut-off value, the corresponding sensitivity was 0.861 and the specificity was 0.167. CONCLUSIONS The decrease in number of the contralateral internal iliac artery branches on preoperative CTA is an independent risk factor for pelvic ischemia after occlusion of the internal iliac artery during EVAR surgery, but it does not show enough clinical value.
Aortic Aneurysm, Abdominal ; surgery ; Blood Vessel Prosthesis Implantation ; Case-Control Studies ; Embolization, Therapeutic ; Endovascular Procedures ; Humans ; Iliac Aneurysm ; Iliac Artery ; surgery ; Retrospective Studies ; Risk Factors ; Treatment Outcome

Elevating thin flaps has long been a goal of reconstructive surgeons. Thin flaps have numerous advantages in reconstruction. In this study, we present a surgical method for elevating a thin flap and demonstrate the safety of the procedure. A retrospective review was performed of the electronic medical records of patients who underwent thin flap elevation for lower extremity reconstruction from April 2016 to September 2016 at the Department of Plastic Surgery of Asan Medical Center. All flaps included in this study were elevated above the superficial fascia. A total of 15 superficial circumflex iliac artery free flaps and 13 anterolateral thigh free flaps were enrolled in the study. The total complication rate was 17.56% (n=5), with total loss of the flap in one patient (3.57%) and partial necrosis of the flap in four patients (14.28%). No wound dehiscence or graft loss at the donor wound took place. Elevation above the superficial fascia is not inferior in terms of flap necrosis risk and is superior for reducing donor site morbidity. In addition to its safety, it yields good aesthetic results.
Chungcheongnam-do ; Electronic Health Records ; Free Tissue Flaps ; Humans ; Iliac Artery ; Lower Extremity ; Methods ; Necrosis ; Perforator Flap* ; Retrospective Studies ; Subcutaneous Tissue ; Surgeons ; Surgery, Plastic ; Thigh ; Tissue Donors ; Transplants ; Wounds and Injuries

Group A streptococcus is a common cause of upper respiratory infection in children; however, it is a rare cause of pseudoaneurysm in pediatrics with only limited reports of cases associated with cardiac surgery and underlying disease. We report a case of infectious pseudoaneurysm of the right internal iliac artery caused by group A streptococcus in a previously healthy 5-year-old boy who presented with scarlet fever and group A streptococcal bacteremia. He was admitted to the hospital with fever, rash on the whole body, and sore throat, accompanied by severe leg pain. He was treated with surgical removal and antibiotics. Because a pseudoaneurysm may develop in children without vascularrelated underlying diseases, we should consider the possibility of this important clinical diagnosis in patients with scarlet fever.
Aneurysm, False* ; Aneurysm, Infected ; Anti-Bacterial Agents ; Bacteremia ; Child* ; Child, Preschool ; Diagnosis ; Exanthema ; Fever ; Humans ; Iliac Artery ; Leg ; Male ; Pediatrics ; Pharyngitis ; Scarlet Fever ; Streptococcus pyogenes ; Streptococcus* ; Thoracic Surgery

Group A streptococcus is a common cause of upper respiratory infection in children; however, it is a rare cause of pseudoaneurysm in pediatrics with only limited reports of cases associated with cardiac surgery and underlying disease. We report a case of infectious pseudoaneurysm of the right internal iliac artery caused by group A streptococcus in a previously healthy 5-year-old boy who presented with scarlet fever and group A streptococcal bacteremia. He was admitted to the hospital with fever, rash on the whole body, and sore throat, accompanied by severe leg pain. He was treated with surgical removal and antibiotics. Because a pseudoaneurysm may develop in children without vascularrelated underlying diseases, we should consider the possibility of this important clinical diagnosis in patients with scarlet fever.
Aneurysm, False* ; Aneurysm, Infected ; Anti-Bacterial Agents ; Bacteremia ; Child* ; Child, Preschool ; Diagnosis ; Exanthema ; Fever ; Humans ; Iliac Artery ; Leg ; Male ; Pediatrics ; Pharyngitis ; Scarlet Fever ; Streptococcus pyogenes ; Streptococcus* ; Thoracic Surgery

PURPOSE: Appropriate animal models of atherosclerotic plaque are crucial to investigating the pathophysiology of atherosclerosis, as well as for the evaluation of the efficacy and safety of vascular devices. We aimed to develop a novel animal model that would be suitable for the study of advanced atherosclerotic lesions in vivo. MATERIALS AND METHODS: Atherosclerotic plaque was induced in 24 iliac arteries from 12 rabbits by combining a high cholesterol diet, endothelial denudation, and injection into the vessel wall with either saline (n=5), olive oil (n=6), or inflammatory proteins [n=13, high-mobility group protein B1 (HMGB1) n=8 and tumor necrosis factor (TNF)-α n=5] using a Cricket™ Micro-infusion catheter. Optical coherence tomography (OCT) was performed to detect plaque characteristics after 4 weeks, and all tissues were harvested for histological evaluation. RESULTS: Advanced plaque was more frequently observed in the group injected with inflammatory proteins. Macrophage infiltration was present to a higher degree in the HMGB1 and TNF-α groups, compared to the oil or saline group (82.1±5.1% and 94.6±2.2% compared to 49.6±14.0% and 46.5±9.6%, p-value<0.001), using RAM11 antibody staining. On OCT, lipid rich plaques were more frequently detected in the inflammatory protein group [saline group: 2/5 (40%), oil group: 3/5 (50%), HMGB1 group: 6/8 (75%), and TNF-α group: 5/5 (100%)]. CONCLUSION: These data indicate that this rabbit model of atherosclerotic lesion formation via direct injection of pro-inflammatory proteins into the vessel wall is useful for in vivo studies investigating atherosclerosis.
Animals ; Cholesterol, Dietary/administration & dosage ; *Disease Models, Animal ; Endothelium/surgery ; HMGB1 Protein/*adverse effects ; Iliac Artery/diagnostic imaging/pathology/surgery ; Injections, Intra-Arterial ; Macrophages ; Male ; Olive Oil/adverse effects ; Plaque, Atherosclerotic/*chemically induced/diagnostic imaging/pathology ; Rabbits ; Sodium Chloride/adverse effects ; Tomography, Optical Coherence ; Tumor Necrosis Factor-alpha/*adverse effects