Bronchobiliary Fistula after Radiofrequency Thermal Ablation of Hepatic Tumor

A broad spectrum of complications can occur after radiofrequency (RF) ablation of hepatic tumors, even though it has been accepted as a safe and effective technique for unresectable hepatic tumors. Recently, the rare complication of brochobiliary fistula was encountered after RF ablation in a patient with a metastatic tumor from stomach cancer. It was assumed to have developed from collateral damage to the adjacent diaphragm and lung base as well as biloma formation at the ablation zone. Symptomatic improvement was achieved by conservative management with an external drainage catheter, but the fistula was still persistent on a 2-month follow-up image.

[The endoscopic treatment of bronchial fistulas by submucosal injections]

A total of 21 patients (aged 30-72) with bronchial stump fistulas (307 mm) were treated by a newly developed method of treatment of purulent-destructive pulmonary diseases. This technique represents a gradual narrowing of the bronchial fistula lumen due to infiltrate formation in the submucosal bronchial layer. The volume formation substance biopolymer "DAM+", hydrogenous biopolymer with ions of silver "Argiform" for endoprosthesis of the soft tissues, is injected into the submucosal bronchial layer. It is necessary to make 5-20 fibrobronchoscopies for bronchial fistula healing. No complications occurred as a result of this treatment. The healing of bronchial fistula and bronchial stump epithelization were found in 18 patients.

[Aortobronchial fistulas]

INTRODUCTION

Aortobronchial fistulas are uncommon but generally fatal if not treated surgically. Haemoptysis is the main symptom of this pathology. STATES OF ART AND PERSPECTIVES: Aortobronchial fistulas occur most commonly in patients with thoracic aneurysms (atherosclerosis, mycotic, aortic surgery's complication...). Main investigation is CT angiography with 2 D and 3 D reconstructions.

CONCLUSION

Endovascular exclusion can be efficient treatment option.

Treatment of a transdiaphragmatic fistula with an endobronchial-blocking catheter

We report a case of a bronchosubphrenic fistula in a 59-year-old female following hemicolectomy complicated by fecal peritonitis. The patient needed intubation and positive-pressure ventilation, which caused a massive air leak. The fistula was treated using an endobronchial blocking catheter in combination with antibiotic treatment and drainage.

[Bronchobiliary fistula associated with combined abscess of lung and liver]

HISTORY AND PHYSICAL EXAMINATION

A 43-year-old, cachectic, alcohol-addicted patient was admitted to the hospital due to hemoptysis and fever of up to 40 degrees C for the last 4 days. Physical examination revealed pleural rubs in the right lower lung and a diffuse pain in the right upper quadrant of the abdomen. The right upper quadrant of the abdomen also showed scars from several surgical interventions on the small intestine, the liver and the biliary tract and deformed caudal ribs due to an accident 23 years earlier.

DIAGNOSTICS, THERAPY, AND CLINICAL COURSE

Chest X-ray, ultrasound and computed tomography (CT) showed abscess cavities in lung and liver communicating through the diaphragm. Under antibiotic therapy the abscess was drained. Cultures showed Klebsiella pneumoniae and Streptococcus viridans. Continuous lavage of the abscess cavities and antibiotic therapy led to an improvement in parameters of inflammation and clinical status. Imaging after 10 days of treatment showed a contrast enrichment in the abscess cavities and a bronchobiliary fistula accounting for temporary biliptysis. The drainage was removed after 29 days, when similar imaging revealed no further sign of an abscess cavity and a previous CT follow-up had proven a distinct decrease of the abscesses.

CONCLUSION

Bronchobiliary fistulas are very rare. In most cases they are caused by hepatic or subphrenic abscesses, resulting from different conditions. The development of an bronchobiliary fistula originating from a Klebsiella pneumoniae pneumonia, as indicated by this report, has not been described so far. In the patient presented here, treatment was achieved due to continuous drainage despite the large extent of the abscess.

Bronchoscopic closure of bronchopleural fistula using gelfoam

Management of a persistent bronchopleural fistula (BPF) can be a therapeutic challenge. The etiological factors responsible for BPF include pulmonary tuberculosis, post-thoracic resection surgeries, trauma, malignancy, necrotising infections and rupture of lung abscess. The immediate management of BPF is drainage of the pleural cavity with insertion of an intercostal drainage tube. Patients with BPF may also require surgical intervention in the form of a wedge resection or lobectomy or muscle flap surgery. We report a case of a peripheral BPF secondary to a bacterial infection, which was successfully managed by the instillation of gelfoam via flexible bronchoscopy.

Esophagorespiratory fistula: long-term results of palliative treatment with covered expandable metallic stents in 61 patients

PURPOSE

To evaluate long-term clinical results of palliative treatment of esophagorespiratory fistulas (ERFs) with covered expandable metallic stents.

MATERIALS AND METHODS

Sixty patients with ERFs due to esophageal or bronchogenic carcinoma and one patient with ERF due to pressure necrosis caused by initial esophageal stent placement for esophageal carcinoma were treated with covered expandable esophageal or tracheobronchial metallic stents. Information about technical success of stent placement, initial clinical success and failure, fistula reopening, and complications was obtained. Survival curves for both patient groups with initial clinical success and failure were obtained and compared with Kaplan-Meier methods and log-rank test.

RESULTS

Stent placement was technically successful in all patients, with no immediate procedural complications. The stent completely sealed off the fistula in 49 (80%) of 61 patients so that they had no further aspiration symptoms (initial clinical success). Twelve (20%) of 61 patients had persistent aspiration symptoms due to incomplete ERF closure (initial clinical failure). During follow-up, the fistula reopened in 17 (35%) of 49 patients with initial clinical success: In eight patients, the reopened ERF was sealed off successfully with stent placement or balloon dilation. In two patients with reopened ERF caused by food impaction, the reopened fistula resolved spontaneously. Seven patients did not undergo further treatment. All patients died during follow-up, and mean survival was 13.4 weeks (range, 1-56 weeks) after stent placement. Mean survival in patients with initial clinical success was significantly longer than that in patients with initial clinical failure (15.1 vs 6.2 weeks, P <.05).

CONCLUSION

Covered expandable metallic stents were placed in 61 patients with ERFs, but the initial clinical success rate was poor and the rate of reopening was high; however, interventional treatment was effective for sealing off reopened ERFs.

Closure of bronchopleural fistulas using Albumin-Glutaraldehyde tissue adhesive

Bronchopleural fistulas are a life-threatening complication of pulmonary resection. A 21-year-old woman developed a large bronchopleural fistula after undergoing a pneumonectomy for carcinoid tumor. Despite bronchial stump revision and omental coverage, the fistula recurred. The second patient is a 42-year-old woman with a history of multiple thoracotomies who developed a bronchopleural fistula following aortic root replacement. Using either rigid bronchoscopy or thoracoscopy, these fistulas were evaluated and sealed with an albumin-glutaraldehyde tissue adhesive that may have improved strength and biocompatibility compared with other tissue sealants. This approach may be an effective alternative in the treatment of bronchopleural fistulas.

High frequency oscillatory ventilation in the management of a high output bronchopleural fistula: a case report

PURPOSE

To describe the use of high frequency oscillatory ventilation (HFOV) in the management of a high output bronchopleural fistula (BPF).

CLINICAL FEATURES

A 55-yr-old female developed a BPF after thoracotomy and decortication of an empyema. The patient deteriorated on the second postoperative day (pH 7.10 PCO2 89) requiring 100% oxygen and mechanical ventilation. After initial improvement, deterioration occurred by 24 hr with conventional positive pressure ventilation (volume or pressure limited) because of decreased pulmonary compliance and bilateral diffuse airspace disease (acute respiratory distress syndrome), persistent increased peak and plateau airway pressures, a prolonged inspired oxygen concentration greater than 0.6, and inability to apply positive end expiratory pressures because of an increased BPF leak (530 mL.breaths(-1)). HFOV was initiated and maintained for 28 days until resolution of the airspace disease and decreased leak through the BPF to 100 mL.breaths(-1).

CONCLUSION

We report the successful use of HFOV in a patient with high output BPF. We suggest that HFOV is a useful technique in patients with a BPF when conventional positive pressure ventilation fails.

[Conservative therapy for recurrent bronchial stump fistula occurred after surgery for lung cancer with cerebrovascular disease]

BACKGROUND

Although pyrothorax caused by bronchial stump fistula is 1 of the most severe respiratory complications frequently encountered after surgery for lung cancers, it is very difficult to prevent the development of pyrothorax. However, conservative treatment for bronchial stump fistula occurred after surgery for lung cancer was successfully performed in 1 of our elderly lung cancer patients with a history of cerebrovascular events.

CASE

Patient was a 74-year-old man who developed cerebral infarction in October 2000, and was continuously undergoing rehabilitation for left hemiplegia. Chest computed tomography (CT) demonstrated a tumorous lesion in the right S6. Clinical diagnosis of stage IA squamous cell carcinoma was made. His performance status (PS) was degree IV, and he required complete assistance. In addition, since several abnormal florae were detected by preoperative examinations of sputum, the development of postoperative respiratory complications was suspected. In April 2001, thoracoscopy-assisted right inferior lobectomy and nodal dissection 1 (ND 1) were performed. Although the patient developed bronchial stump fistula on the 6th hospital day, it was successfully treated by conservative procedures after second surgery.

CONCLUSION

Conservative therapy under nutritional management mainly consisting of central venous nutrition may be useful for some surgically treated lung cancer patients with bronchial stump fistula when they have mild inflammation and the reduction of pyrothorax cavity can be expected by re-expansion of the residual lobes of the lung.

Endovascular stent-graft repair of a pulmonary artery-bronchial fistula

Herein the authors present a case of a 51-year-old man who presented with dramatic angiographically demonstrated massive hemorrhage from a pulmonary artery-to-bronchial stump fistula 3 months after right upper lobectomy. The patient was successfully treated with endovascular placement of a covered stent.

[Mediastinal tubercular lymphadenitis and adenobronchial fistulas (TABF) in the paediatric age. 1980-2001 case record]

The aim of this study is to assess the frequency and clinical importance of mediastinal tubercular lymphadenitis and adenobronchial fistulas (TABF) and to evaluate the role of fiberbronchoscopy and surgical bronchoscopy associated with antimicrobical chemotherapy. 136 cases of primary pulmonary TBC, admitted to the Unit of Infectious Diseases, Bambino Gesu Children Hospital in Rome, between 1980 and 2001, were enrolled in the study. We considered 56 patients with clinical and radiological evidence of mediastinal tubercular lymphadenitis and 28 patients with adenobronchial fistulas (TABF). The incidence of TABF was 20,58% of primary pulmonary TBC. All patients were treated by medical therapy combined with local endobronchial surgery. TABF emerges as a complication of pediatric primary pulmonary TBC. We suggest a clinical and radiological survey to decide the utility of a diagnostic and therapeutic surgical bronchoscopy

Ventilator auto-triggering in a patient with tuberculous bronchopleural fistula

We report a case of ventilator auto-triggering resulting from tuberculous bronchopleural fistula being managed with chest tube suction. Early recognition of bronchopleural fistula-related auto-triggering is extremely important. Auto-triggering can lead to serious adverse effects, including severe hyperventilation and inappropriate escalation of sedatives and/or neuromuscular blockers (administered to reduce spontaneous breathing efforts). Auto-triggering was confirmed in our patient when tachypnea persisted despite pharmacologic neuromuscular paralysis. Auto-triggering can be reduced or eliminated by decreasing ventilator trigger sensitivity or by decreasing the air leak flow by reducing the degree of chest tube suction.

Endobronchial occlusion method of bronchopleural fistula with metallic coils and glue

We describe our technique for endobronchial occlusion of bronchopleural fistula (BPF) with metallic coils and glue through a fiber-optic bronchoscope under local anesthesia. After anchoring the vascular embolization coils at the fistula bronchus, cyanoacrylate glue was sprayed. The sprayed glue obliterates gaps between the coils and stabilizes them. This procedure successfully occluded fistula bronchus except in one post-pneumonectomy case of large fistula. This method may be one of therapeutic options for BPF, especially in patients at high risk for curative surgery under general anesthesia.

Endovascular treatment in diseases of the descending thoracic aorta: 6-year results of a single center

OBJECTIVE

The purpose of this study was to evaluate endovascular treatment in diseases of the descending thoracic aorta.

MATERIAL AND METHODS

This study was designed as a single center's (university hospital) experience. Over a 6-year period (1995 to 2001), thoracic endografts were placed in 74 patients with a diseased descending thoracic aorta who were at high risk for conventional open surgical repair: 34 had atherosclerotic aneurysms, six had posttraumatic aneurysms, 14 had type B dissection with aneurysmal dilatation of the false lumen, 12 had isthmic transections from blunt trauma, five had thoracoabdominal aneurysms (treated with a combined procedure), two had aortic coarctation, and one had an aortobronchial fistula. Twenty-six procedures (35.1%) were conducted as emergencies, and 48 (64.9%) were elective. The feasibility of endovascular treatment and sizing of stent grafts were determined with preoperative spiral computed tomography and intraoperative angiography.

RESULTS

Endovascular operations were completed successfully in all 74 patients; postprocedural conversion to open repair was necessary in three cases. The overall 30-day mortality rate was 9.5% (seven deaths). Temporary neurologic deficits developed in two patients; not one patient had permanent paraplegia. The primary endoleak rate was 20.3% (15 patients). The mean follow-up period was 22 months (range, 3 to 72 months). Five deaths occurred in the follow-up period, and three patients needed secondary conversion to open repair 2, 3, and 14 months after initial endografting.

CONCLUSION

Endoluminal treatment in diseases of the thoracic descending aorta is feasible and may offer results as good as the open method.

Modified Dumon stent for the treatment of a bronchopleural fistula after pneumonectomy

We describe the case of a 72-year-old man in whom a bronchopleural fistula developed after induction chemotherapy followed by right pneumonectomy for lung cancer. Resuturing of the right main bronchial stump, endoscopic treatment, and repair using a latissimus dorsi muscle flap were not effective. Consequently we placed a modified Dumon stent in the carina, which effectively closed the stump.

Endobronchial closure of postoperative bronchopleural fistula using vascular occluding coils and n-butyl-2-cyanoacrylate

We report herein 2 patients with intractable postoperative bronchopleural fistula with empyema after lobectomy or subsegmentectomy. The patients underwent several treatments including thoracotomy, but the fistula closure was not successful. Finally, the bronchopleural fistula was successfully treated by endobronchial closure using vascular occluding coils and n-butyl-2-cyanoacrylate (Histoacryl).

Successful airway stenting using silicone prosthesis for esophagobronchial fistula

We present the case of a 55-year-old man with advanced esophageal cancer who was successfully treated using a self-expandable metallic stent (S-EMS) for 6 months and subsequently was treated for an esophagobronchial fistula as a complication of the initial S-EMS using a silicone airway stent for an additional 4 months. This is the first report in the literature concerning penetration into the airway of an S-EMS implanted in the esophagus. The present case suggests that airway stenting using a silicone stent as treatment for an esophagobronchial fistula may represent a useful modality.