Management of aorto-esophageal fistula secondary after thoracic endovascular aortic repair: a review of literature

Mechanism and Management of Aorto-Esophageal Fistulation after Thoracic Endovascular Aortic Repair

An aorto-esophageal fistula (AOF) is a pathological communication between the thoracic aorta and the esophagus. It can induce life-threatening hematemesis, which is unique among the other types of gastrointestinal hemorrhage in that the vomiting is bright red and represents an arterial bleed. Nevertheless, it is notable that over 70% of cases are associated with thoracic aortic aneurysms, particularly as a postoperative complication following open surgery, and arguably more so following endovascular repair. As thoracic endovascular aortic repair becomes a more common practice, it is important to remain vigilant for an increase in the incidence of AOF. A thorough consideration of potential AOF etiologies is essential, as these must be substantiated by clinical, laboratory, and imaging tests. The available management options and the likelihood of success depend largely on the diagnosis made. The stability of the fistula wall is fundamental to determine treatment options and is particularly important in case of a potentially fatal AOF. The stability of the organ wall determines the complication risk, and therefore which treatment the patient is most likely to tolerate. A new AOF classification system will allow for better diagnosis and clearer assessment of treatment options.

The usefulness of gel immersion endoscopy in identifying herald bleeding from an infectious aortoenteric fistula: a case report

A 62-year-old male with a history of stent graft replacement for an infectious aortic aneurysm, followed by multiple interventions for postoperative complications, was admitted with melena and anemia. Enhanced computed tomography (eCT) demonstrated fluffing and hyperdensities surrounding the graft, despite no evidence of an aortoenteric fistula (AEF). Emergency esophagogastroduodenoscopy (EGD) showed a massive bleeding in the reconstructed tract and the protruding lesion of postoperative granulation tissue with clots at the end of the blind pouch. Thereafter, hemorrhage temporarily reoccurred several times; however, the source could not be identified using eCT or EGD. Finally, on the third attempt, we performed gel immersion endoscopy (GIE) with manual injection of VISCOCLEARⓇ, and it showed purulent blood flowing from one side of the protruding lesion in the pouch. Based on the eCT findings showing exudation of the contrast agent from the graft into the pouch, we made a diagnosis of an AEF. However, radical surgery was not performed because of the patient's poor general condition. During conservative management, he died of uncontrolled bleeding from the AEF on the 5th day of hospitalization. This is the first case in which the GIE might provide tips to identify herald bleeding from a lethal AEF.

Prediction of malignant esophageal fistula in esophageal cancer using a radiomics-clinical nomogram

BACKGROUND

Malignant esophageal fistula (MEF), which occurs in 5% to 15% of esophageal cancer (EC) patients, has a poor prognosis. Accurate identification of esophageal cancer patients at high risk of MEF is challenging. The goal of this study was to build and validate a model to predict the occurrence of esophageal fistula in EC patients.

METHODS

This study retrospectively enrolled 122 esophageal cancer patients treated by chemotherapy or chemoradiotherapy (53 with fistula, 69 without), and all patients were randomly assigned to a training (n = 86) and a validation (n = 36) cohort. Radiomic features were extracted from pre-treatment CTs, clinically predictors were identified by logistic regression analysis. Lasso regression model was used for feature selection, and radiomics signature building. Multivariable logistic regression analysis was used to develop the clinical nomogram, radiomics-clinical nomogram and radiomics prediction model. The models were validated and compared by discrimination, calibration, reclassification, and clinical benefit.

RESULTS

The radiomic signature consisting of ten selected features, was significantly associated with esophageal fistula (P = 0.001). Radiomics-clinical nomogram was created by two predictors including radiomics signature and stenosis, which was identified by logistic regression analysis. The model showed good discrimination with an AUC = 0.782 (95% CI 0.684-0.8796) in the training set and 0.867 (95% CI 0.7461-0.987) in the validation set, with an AIC = 101.1, and good calibration. When compared to the clinical prediction model, the radiomics-clinical nomogram improved NRI by 0.236 (95% CI 0.153, 0.614) and IDI by 0.125 (95% CI 0.040, 0.210), P = 0.004.

CONCLUSION

We developed and validated the first radiomics-clinical nomogram for malignant esophageal fistula, which could assist clinicians in identifying patients at high risk of MEF.

Refractory esophageal-mediastinal fistula successfully treated with endoluminal vacuum therapy and enteral nutrition using a double-lumen elemental diet tube: a case report

BACKGROUND

Aortic-esophageal fistula (AEF) after thoracic endovascular aortic repair (TEVAR) has a high fatality rate and is difficult to treat. Endoluminal vacuum therapy (EVT) has recently appeared and proven to be a useful method for anastomotic leakage.

CASE PRESENTATION

A 76-year-old man underwent aortic arch replacement for a stent graft infection after TEVAR. Persistent mediastinitis and pyothorax were observed after aortic arch replacement, and further examination revealed an esophageal-mediastinal fistula (EMF). Over-the-scope clip (OTSC®) closure was performed to treat EMF but achieved no cure. Then, the patient was referred to our hospital. First, we removed the OTSC® that interfered with the treatment using the remOVE System® and started EVT using a double-lumen elemental diet tube (W-EDT®). The vacuum sponge was affixed to the vacuum side of W-EDT®, and enteral nutrition administered through W-EDT was combined with EVT. EMF was cured 11 days after EVT, and the patient was able to feed himself.

CONCLUSION

The combination of EVT and enteral nutrition feeding using W-EDT® is a successful novel procedure to treat refractory EMF.

Aortoesophageal Fistula Occurring Due to Aortic Aneurysm

Upper gastrointestinal bleeding is a rare presentation of the aortoesophageal fistula (AEF) and is usually caused by thoracic aortic aneurysms. We present the case of a 61-year-old male who presented with chest pain and hematemesis. A chest X-ray showed a widened mediastinum. The patient underwent computed tomography angiography (CTA), which showed the presence of a large aneurysm in the aorta, which caused compression of the trachea, esophagus, and left pulmonary artery. Additionally, there was evidence of an AEF. It was decided to perform an emergency surgical intervention on the patient. However, the patient had multiple episodes of hematemesis and expired.

AORTO-ESOPHAGEAL FISTULA SECONDARY AFTER THORACIC ENDOVASCULAR AORTIC REPAIR

Aortoesophageal fistula (AEF) secondary to thoracic endovascular aortic repair (TEVAR) is a rare clinical entity that poses a threat to life as it causes massive digestive bleeding, and it is estimated that 60% of patients who suffer from it could die within within 6 months of the onset of their symptoms. It requires a high clinical suspicion to establish an early multidisciplinary surgical treatment. We present the cases of two patients diagnosed with aortoesophageal fistulas after TEVAR in the last 5 years (January 2018-December 2022) while reviewing the existing scientific literature on the matter.

Clinical characteristics and risk factors for 30-day mortality in esophageal cancer patients with upper gastrointestinal bleeding: a multicenter study

Background

Esophageal cancer is a highly malignant neoplasm with poor prognosis. Of its patients, upper gastrointestinal bleeding (UGIB) is one of the most challenging and threatening conditions in the emergency department (ED). However, no previous studies have analyzed the etiologies and clinical outcomes in this specific population. This study aimed to identify the clinical characteristics and risk factors for 30-day mortality in esophageal cancer patients with UGIB.

Methods

This retrospective cohort study enrolled 249 adult patients with esophageal cancer presenting with UGIB in the ED. Patients was divided into the survivor and non-survivor groups, and their demographic information, medical history, comorbidities, laboratory parameters, and clinical findings were recorded. The factors associated with 30-day mortality were identified using Cox's proportional hazard model.

Results

Among the 249 patients in this study, 30-day mortality occurred in 47 patients (18.9%). The most common causes of UGIB were tumor ulcer (53.8%), followed by gastric/duodenal ulcer (14.5%), and arterial-esophageal fistula (AEF) (12.0%). Multivariate analyses indicated that underweight (HR = 2.02, p = 0.044), history of chronic kidney disease (HR = 6.39, p < 0.001), active bleeding (HR = 2.24, p = 0.039), AEF (HR = 2.23, p = 0.046), and metastatic lymph nodes (HR = 2.99, p = 0.021) were independent risk factors for 30-day mortality.

Conclusions

The most common cause of UGIB in esophageal cancer patients was tumor ulcer. AEF, accounting for 12% of UGIB in our study, is not an uncommon cause. Underweight, underlying chronic kidney disease, active bleeding, AEF, and tumor N stage > 0 were independent risk factors for 30-day mortality.

Aorticoesophagal Fistula Combined with Upper Gastrointestinal Bleeding after Endovascular Dissection of Thoracic Aortic Aneurysm

Aortoesophageal fistula (AEF) is a relatively rare and potentially fatal disease. Secondary AEF is rare but is associated with serious complications and high mortality. There are rare cases of esophageal mediastinal fistula after descending aortic aneurysm stent implantation. We report the case of a 76-year-old man who had upper abdominal distension, without obvious inducement, for 3 months and felt fullness after a meal, accompanied by anorexia. A chest computer tomography (CT) examination of the abdomen was performed with the outside hospital. Descending thoracic aortic aneurysm was discovered and was treated with stent implantation. The patient was transferred to our hospital to continue treatment, mainly because of an esophageal mediastinal fistula. Finally, the thoracic aortic aneurysm was diagnosed as AEF after stent implantation, combined with the diagnosis of upper gastrointestinal bleeding. We hope that, through this case, we can explain the possible causes of bronchial mediastinal fistula after stent implantation of descending aortic aneurysm and the mechanism of upper gastrointestinal bleeding.

A New Mini-Invasive Approach for a Catastrophic Disease: Staged Endovascular and Endoscopic Treatment of Aorto-Esophageal Fistulas

Aorto-esophageal fistula (AEF) is an uncommon but usually fatal disorder. Surgery with resection of an aneurysm and esophagus, in situ reconstruction of the descending aorta and omental flap installation offers the gold standard for the reduction of infections, but it is burdened by high intraoperative and perioperative mortality rates. We report our experience with a combined minimally invasive approach for the multi-stage treatment of three cases of aorto-esophageal fistula caused by thoracic aneurysm rupture. In all of the patients, the aneurysm was treated with thoracic endovascular aortic repair and the esophageal lesion was treated with esophageal endoprosthesis placement. According to our experience, the combined strategy of thoracic endovascular aortic repair (TEVAR) and esophageal less invasive endoscopic treatments represents an alternative solution in frail patients with high surgical risk.

A Catastrophic Complication of Thoracic Endovascular Aortic Repair: Aortoesophageal Fistula

A 62-year-old man was admitted to the hospital due to sepsis secondary to a hemodialysis catheter-related infection that, upon diagnostic evaluation, demonstrated to be caused by P. aeruginosa and was treated with meropenem. Eradication of the infectious episode was confirmed by blood workup, including cultures. One month after the initial episode, the patient was readmitted due to a symptomatic penetrating aortic ulcer, which was classified as a cardiovascular emergency. The patient underwent an aortic stent-graft placement. Four weeks later, he presented to the emergency department with a 2-hour onset of thoracic pain and massive hematemesis. The esophagus and aortic segment with aortic stent graft were resected en bloc after an aortoesophageal fistula was diagnosed.

Dysphagia aortica

Background

Dysphagia aortica is an umbrella term to describe swallowing obstruction from external aortic compression secondary to a dilated, tortuous, or aneurysmal aorta. We performed a systematic literature review to clarify clinical features and outcomes of patients with dysphagia aortica.

Materials and methods

We searched PubMed, EMBASE, Web of Science, and the Cochrane Library. The terms “aortic dysphagia,” “dysphagia aortica,” “dysphagia AND aortic aneurysm” were matched. We also queried the prospectively updated database of our esophageal center to identify patients with aortic dysphagia referred for diagnosis and treatment over the past two decades.

Results

A total of 57 studies including 69 patients diagnosed with dysphagia aortica were identified, and one patient from our center was added to the database. The mean age was 72 years (range 22–98), and the male to female ratio 1.1:1. Of these 70 patients, the majority (n = 63, 90%) had an aortic aneurysm, pseudoaneurysm, or dissection. Overall, 37 (53%) patients received an operative treatment (81.1% a vascular procedure, 13.5% a digestive tract procedure, 5.4% both procedures). Thoracic endovascular aortic repair (TEVAR) accounted for 60% of all vascular procedures. The postoperative mortality rate was 21.2% (n = 7/33). The mortality rate among patients treated conservatively was 55% (n = 11/20). Twenty-six (45.6%) studies were deemed at a high risk of bias.

Conclusion

Dysphagia aortica is a rare clinical entity with high morbidity and mortality rates and no standardized management. Early recognition of dysphagia and a high suspicion of aortoesophageal fistula may be lifesaving in this patient population.

Presentation, management and outcome of aorto-esophageal fistula in young patients: two case-reports and literature review

Aorto-esophageal fistula (AEF) is a rare serious surgical event. The first case developed hematemesis 2 weeks post-sleeve gastrectomy. A covered esophageal stent was placed endoscopically. The esophageal stent implantation was followed by massive bleeding due to an AEF. A thoracic endovascular aortic repair (TEVAR) was performed. Aggravated by infection of the aortic stent, another massive bleed occurred after 1 year. The final procedure was resection of the descending aorta with reconstruction using a bovine pericardial patch. The second case presented with hematemesis post-motor vehicle accident. AEF was confirmed by aortogram and treated by TEVAR followed by fully covered esophageal stent. The patient declined definite surgery. In conclusion, initial endovascular approach is useful as a bridge procedure. Once the patient hemodynamics are stabilized, a definitive surgical repair is required. The post-repair infection and life-long antibiotics could be overcome by using bovine pericardial grafts.

[Aortoesophageal fistula-A rare differential diagnosis of upper gastrointestinal bleeding]

Approximately 1% of all patients are admitted to an emergency room for upper gastrointestinal hemorrhage. Differential diagnostics reveal an aortoesophageal fistula (AEF) as the cause of the bleeding in very few cases. Despite increasing means of diagnostics and treatment, mortality is high in patients with AEF even under maximum medical care. These are often fulminant situations with fatal outcome for the patient. We report a case that supports this observation described from previous cases and give a closer look at this rare emergency situation. A 54-year-old patient was taken to a maximum care hospital with the clinical diagnosis of upper gastrointestinal bleeding after receiving emergency medical treatment. The source of bleeding was quickly identified as an AEF following lobectomy for bronchial cancer. Despite maximum interventional intensive treatment, the patient died a few hours after hospital admission in hemorrhagic shock due to fulminant hemorrhage from the fistula.

Secondary aorto-esophageal fistula treated by covered esophageal stent and muscle wrapping

Secondary aorto-esophageal fistula is rare, but associated with serious complications and high mortality. We devised a treatment strategy involving a covered esophageal stent, instead of esophageal resection, and placing the latissimus dorsi muscle around the infected aorta without removing the aorta and the stent graft. A 72-year-old man with a history of total arch replacement with a frozen elephant trunk for a thoracic dissecting aneurysm developed aorto-esophageal fistula and underwent surgical treatment using our strategy. He recovered well, and there is no evidence of re-infection 6 months after surgery. This strategy may be a less invasive surgical option.

Aorto-esophageal fistula caused by fishbone ingestion: a case report on staged endovascular and endoscopic treatment

BACKGROUND

Aorto-esophageal fistula (AEF) caused by foreign bodies ingestion is a rare but devastating disorder. Thoracic endovascular aortic repair (TEVAR) has become a widely accepted intervention for treating aorto-esophageal fistulas. As for post-TEVAR esophageal defect, secondary esophagectomy has been the recommended choice for most of the AEFs, but there is no general consensus with regard to the need of secondary surgeries for patients in the absence of clear signs of reinfection or bleeding. We herein presented a case of an AEF caused by fishbone ingestion, after successful TEVAR, the esophageal lesion was closed endoscopically.

CASE PRESENTATION

A 38-year-old male presented with esophageal fistula for 4 months. He was diagnosed with AEF because of Chiari's triad after fishbone ingestion 4 months ago. Emergency thoracic aortic stent implantation was done, and given broad spectrum antibiotics and blood transfusion. His symptoms were improved, and discharged with an esophageal fistula left to heal itself. Nevertheless, after 4 months, re-examination of esophago-gastro-duodenoscopy revealed that the diameter of the fistula was changed from 3 to 6 mm. He was then admitted to our hospital for esophageal fistula repair. Laboratory examinations and chest computed tomography showed no signs of active infection, and endoscopic closure of the fistula was achieved with 4 clips. After that, he was discharged and gradually returned to normal diet.

CONCLUSION

For AEFs in the absence of active infection with repaired aorta but persistent esophageal fistula, endoscopic closure by endoclips might be an effective treatment choice.

Lethal aorto-oesophageal fistula 16 years after aortic prosthetic reconstruction: Delayed rupture as cause of death

The development of aorto-oesophageal fistula (AOF) is a rare complication following thoracic aortic repair. Mortality is high, in most cases due to fatal haematemesis. The clinical onset is variable, occurring approximately one year after surgery. We report a case of a lethal AOF in a 58-year-old man. He underwent open vascular surgery 16 years prior to his death due to a rupture of the descending thoracic aorta. In the early 2000s, the open vascular approach was replaced by thoracic endovascular aortic repair. As a result of this approach, the number of surgical complications has reduced, with the exception of AOF.

Risk Factors for Mortality in Patients with Aortoesophageal Fistula Related to Aortic Lesions

Objective

Aortoesophageal fistula (AEF) related to aortic aneurysm and dissection is an uncommon but life-threatening condition. We performed a systematic review of risk factors for mortality and factors associated with the prognosis of AEF.

Methods

A systematic search of the PubMed, Embase, and Cochrane Library databases was performed. Clinical characteristics, diagnostic methods, and treatments were assessed in terms of their ability to predict mortality.

Results

The systematic review identified 184 eligible articles including 219 patients with AEF. Multivariable Cox regression revealed positive correlations of hemorrhagic shock (hazard ratio (HR): 1.824, 95% CI: 1.217-2.735, P = 0.004), sepsis (HR: 1.714, 95% CI: 1.112-2.641, P = 0.015), multiorgan failure (HR: 3.060, 95% CI: 1.470-6.368, P = 0.003), and conservative treatment (HR: 5.257, 95% CI: 3.405-8.116, P < 0.001) with mortality and a negative correlation between combination therapy (aortic graft replacement and esophagectomy) and mortality (HR: 0.319, 95% CI: 0.125-0.813, P = 0.017). Kaplan–Meier survival analysis showed that the 1-year cumulative survival rate was 42.5 ± 3.8%. The overall fistula-related mortality rate was 47.0% (103/219). The most common causes of death were bleeding (54.9%) and infection (29.2%).

Conclusions

We found that hemorrhagic shock, sepsis, and multiorgan failure were risk factors for death in patients with AEF. Additionally, conservative treatment was associated with a higher rate of mortality, while combined aortic graft replacement and esophagectomy improved the prognosis.

A Single-Center Case Series of Endoscopically Treated Aorto-Gastrointestinal Fistula after Endovascular Aortic Repair: Surgery Is Still the Only Valid Solution

Introduction

Aortoesophageal fistula (AEF) is a life-threatening complication associated with endovascular aortic repair (EVAR) and occurs mostly in patients who undergo thoracic EVAR (TEVAR). To date, surgical treatment of AEF has been considered the most promising therapeutic approach. New endoscopic techniques could contribute to the therapy of AEF. The aim of this study was to analyze the outcome after endoscopic treatment of EVAR-associated AEF.

Methods

All patients who received endoscopic diagnostics and/or therapy for AEF after EVAR/TEVAR in our center between 2010 and 2019 were evaluated.

Results

Seven suitable patients were included. Six of them had undergone TEVAR and 1 had EVAR. Fistula occurred at an average of 307 days (range 21-2,774 days) post-EVAR. Endoscopic treatment was performed on 4 patients by using an over-the-scope clip (OTSC®). However, fistula recurred in all patients who were initially treated endoscopically. They were then treated either by sequential application of further OTSCs® or by implantation of a fully coated, self-expanding metal stent. One of these patients underwent a partial esophageal resection in a subsequent treatment approach. All patients died during the observational period, 5 as a direct consequence of the AEF/aortoduodenal fistula and 2 due to comorbidities. The median survival time after fistula occurrence was 120 days (range 5-823 days).

Conclusion

Endoscopic treatment of AEF with OTSC® should be considered as a possible interim solution, especially in patients with severe comorbidities. However, surgical remediation still appears to be the only procedure with intermediate to long-term therapeutic success.

[Surgical treatment of a patient with traumatic rupture of the aortic arch and late oesophageal perforation]

Described herein is a clinical case report regarding a patient presenting with traumatic rupture of the aortic isthmus with the development of a pseudoaneurysm occupying virtually the entire posterior mediastinum and measuring 20?10 cm in size. He was immediately treated as an emergency to undergo prosthetic reconstruction of the portion of the aortic arch and descending thoracic aorta by means of temporary bypass grafting with a synthetic graft in order to protect the visceral organs. The postoperative period was complicated by oesophageal perforation with the formation of an oesophago-paraprosthetic fistula, infection of the vascular graft, accompanied by the development of pleural empyema and mediastinitis. A second operative procedure was performed, consisting of subclavian-iliac bypass grafting on the right with a polytetrafluoroethylene graft measuring 20 mm in diameter, exclusion of the intrathoracic portion of the oesophagus, creation of a gastro- and oesophagostoma, retrieval of the vascular graft followed by suturing of the aorta, pleurectomy, decortication of the lung, and removal of the empyemic sac on the left. There was no evidence of ischaemia of the spinal cord or visceral arteries. One month postoperatively, he underwent a traumatological stage and 4 months thereafter plasty of the oesophagus with an isoperistaltic gastric pedicle, extirpation of the thoracic portion of the oesophagus, to be later on followed by closure of the oesophagostoma. The patient experienced no difficulties either while walking or during other physical activities, with the ankle-brachial index amounting to 0.9. With time, he developed difficult-to-correct pulmonary hypertension. Unfortunately, the patient eventually died of acute cardiopulmonary insufficiency 9 years after right-sided extra-anatomical subclavian-iliac bypass grafting.

Endoscopic pedicle flap grafting in the treatment of esophageal fistulas: A case report

BACKGROUND

Fistulization is a rare complication of esophageal diverticula. Patients with this condition often require surgery, which unfortunately can be invasive and traumatic. Endoscopic therapy is an alternative method for treating esophageal fistula. Hereby we introduce a new endoscopic technique that uses an esophageal pedicle flap to close esophageal fistulas.

CASE SUMMARY

A 49-year-old male patient, complaining of backache and choking, was formerly diagnosed with chronic bronchopneumonia. Chest computed tomography and esophagram confirmed the presence of esophageal diverticulum and mediastinal esophageal fistula. The patient was then treated by covering the fistulas using a pedicled flap that was acquired through endoscopic submucosal dissection of a patch from the proximal esophageal mucosa. Then the pedicle flap was reversed 180° to cover the fistula. Titanium clips were used to fix the flap. The procedure ended with percutaneous endoscopic gastrostomy for enteral nutrition. The patient was followed up to evaluate the size reduction of the fistula. Cough, backache, and fever were alleviated within a week. Forty-five days after the surgery, endoscopic examination showed that the fistulas were reduced in size. The larger one reduced from 0.5 cm to 0.2 cm, while the smaller one was fully closed.

CONCLUSION

Transplantation of a pedicle flap obtained from the esophageal mucosa endoscopically is minimally invasive for the treatment of fistula.

Hemorrhagic Shock Secondary to Aortoesophageal Fistula as a Complication of Esophageal Cancer

Although aortoesophageal fistulas are rare, they can present as life-threatening emergencies. This condition can develop secondary to an aneurysm, foreign bodies, infiltrating tumors, and radiotherapy. We report a patient with hemorrhagic shock secondary to an aortoesophageal fistula. A 69-year-old male with squamous cell carcinoma of the esophagus treated with chemoradiation and metallic stent placement was admitted to the intensive care unit (ICU) after an episode of hematemesis. The patient was hemodynamically unstable, requiring fluid resuscitation, blood transfusions, and respiratory and vasopressor support. The patient developed electric pulseless activity, and cardiopulmonary resuscitation was performed for 40 minutes. An upper endoscopy showed the esophageal tumor infiltrating into the stent, and computed tomography (CT) angiogram showed leakage of contrast from the thoracic aorta to the esophagus. The diagnosis of aortoesophageal fistula was made. The patient underwent endovascular management for the fistula. However, his critical condition did not improve, and the patient perished.

First Result of a Tailored Progressive Multistep Approach for the Treatment of Aorto-esophageal Fistulae

BACKGROUND

Aorto-esophageal fistulae (AEFs) are a rare but serious and life-threatening disease of the mediastinum. Especially, AEF in the presence of infected stent grafts, for example, after thoracic endovascular aortic repair (TEVAR) is only curable by a multistage interdisciplinary surgical approach. This study presents the results of our four-stage approach consisting of bridging TEVAR, esophagectomy, complete stent removal followed by total bovine tube aortic replacement (TBTAR), and finally esophageal reconstruction.

METHODS

A case series of four patients from our department receiving a four-stage treatment of AEF is presented in this study. Retrospective database analysis focusing on overall survival, duration of intensive care unit and total hospital stay until discharge, complications, surgical time frame, and completion of chosen surgical treatment course was performed.

RESULTS

Overall, four patients surgically treated for AEF since May 2015 were included. A 30-day mortality was 0%, and overall survival at 1 year was 75%. All patients survived more than 5 months and could be discharged after TEVAR and esophagectomy. TBTAR could be performed in two of four patients (50%). Esophageal reconstruction was completed in all patients. Average follow-up was 20.3 ± 1.7 months or until death.

CONCLUSION

The acute management of AEF using this approach seems satisfactory, especially for reducing acute short-term mortality. Complete restoration of the circulatory system and digestive tract remains challenging and is associated with high morbidity. We support the application of bridging TEVAR with a staggered approach to further surgical treatment individually tailored to the patient.

Vascular Graft Infections: An update

Vascular graft infection is a devastating complication of vascular reconstructive surgery. The infection can occur early in the postoperative period and is largely due to intraoperative contamination or by contiguous extension from a nearby infection. It can also occur years after implantation. Staphylococci remain the most common organisms and biofilm production makes eradication difficult. Factors commonly reported to predispose to vascular graft infection are periodontal disease, nasal colonization with Staphylococcus aureus, bacteremia, certain graft characteristics, diabetes mellitus, postoperative hyperglycemia, location of the incision, wound infection, and emergency procedure. Management consists of antibiotic and surgical therapy. Preventive methods are described.