The incidence, etiology, and prevention of postresectional bronchopleural fistula

Transverse rectus abdominis myocutaneous flap for postpneumonectomy bronchopleural fistula: A case report

RATIONALE

Numerous types of flap coverage have been reported to prevent or to repair bronchopleural fistulas. Most of the flaps were harvested from chest area. However, these pedicled flaps might not be optimal for the patient who has undergone previous radiotherapy on pulmonary parenchyma because the pedicle artery of the flap might have been injured by irradiation. Therefore, an alternative flap outside of the chest area is necessary.

PATIENT CONCERNS

A 61-year-old male was diagnosed of squamous cell carcinoma in right upper lobe lung (cT3N2M0, stage IIIa). After completing the neoadjuvant chemoradiotherapy, he underwent video-assisted thoracoscopic surgery with right side intrapericardial pneumonectomy.

DIAGNOSIS

Persistent air leak due to postpneumonectomy bronchopleural fistula.

INTERVENTIONS

Pedicled transverse rectus abdominis myocutaneous (TRAM) flap was used to repair the bronchial stump.

OUTCOMES

The bronchial stump was repaired successfully, the bronchopleural fistula was obliterated, and the patient was free from air leak after following for 12 months.

LESSONS

This case demonstrated that pedicled TRAM flap is a feasible alternative to repair bronchopleural fistula.

Extracorporeal membrane oxygenation in the management of post-pneumonectomy air leak and adult respiratory distress syndrome of the non-operated lung

Post-pneumonectomy air leak and severe respiratory failure of the non-operated lung is considered to be a life-threatening complication of lung surgery. We present the case report of a 68-year-old man who underwent a right pneumonectomy for spinocellular carcinoma. Refractory respiratory failure occurred following bronchial stump air leakage and adult respiratory distress syndrome (ARDS) of the non-operated lung. Established veno-venous extracorporeal membrane oxygenation (VV ECMO) was utilized to maintain tissue oxygenation while re-do surgery was performed. The leaking bronchial stump was closed with an azygos vein patch and, subsequently, weaning off ECMO was accomplished 7 days later. The patient fully recovered and he is limited only by mild exertional dyspnea at 24 months follow-up after the initial surgery.

Reconstructive Surgery for Bronchopleural Fistula and Empyema: New Application of Free Fascial Patch Graft Combined with Free Flap

Background:

Postoperative bronchopleural fistula (BPF) and empyema are not uncommon after lung cancer surgery. Some patients require reconstructive surgery to achieve wound healing. In this report, we describe a novel method of reconstructive surgery for BPF and empyema.

Methods:

From 1996 through 2014, we performed reconstructive surgery for the treatment of BPF and empyema in 13 cases. BPF or a pulmonary fistula was present in 11 patients at the time of reconstruction. Of these, a free fascial patch graft combined with a free soft tissue flap was used to close the fistula in 6 cases. In the other 5 cases, primary fistula closure or direct coverage of the fistula with a transferred flap was performed. Medical records were retrospectively reviewed, and postoperative results were compared for these methods.

Results:

All the flaps were transferred successfully except in 1 case. Although postoperative air leakage was observed in 5 cases, most of these healed with conservative management. Of 11 fistulas, 8 were successfully controlled. Although differences were not statistically significant, a higher success rate of fistula closure was obtained in patients with a fascial patch graft (100% vs 40%). As a result, 9 patients could be discharged from the hospital, but 4 died during their hospital stay.

Conclusion:

Although the incidence of in-hospital mortality was high, fistula closure with a fascial patch graft combined with free flap transfer was effective for the treatment of BPF and empyema, compared with other procedures.

A systematic review and meta-analysis-does chronic obstructive pulmonary disease predispose to bronchopleural fistula formation in patients undergoing lung cancer surgery?

BACKGROUND

we conducted this systematic meta-analysis to determine the association between chronic obstructive pulmonary disease (COPD) and risk of bronchopleural fistula (BPF) in patients undergoing lung cancer surgery.

METHODS

Literature retrieval was performed in PubMed, Embase and the Web of Science to identify the full-text articles that met our eligibility criteria. Odds ratio (OR) with 95% confidence interval (CI) served as the summarized statistics. Q-test and I(2)-statistic were used to evaluate the level of heterogeneity. Sensitivity analysis was performed to further examine the stability of pooled OR. Publication bias was detected by both Begg's test and Egger's test.

RESULTS

Eight retrospective observational studies were included into this meta-analysis. The overall summarized OR was 2.03 (95% CI: 1.44-2.86; P<0.001), revealing that COPD was significantly associated with the risk of BPF after lung cancer surgery. In subgroup analysis, the relationship between COPD and BPF occurrence remained statistically prominent in the subgroups stratified by statistical analysis (univariate analysis, OR: 1.91; 95% CI: 1.35-2.69; P<0.001; multivariate analysis, OR: 3.18; 95% CI: 1.95-5.19; P<0.001), operative modes (pneumonectomy, OR: 2.11; 95% CI: 1.15-3.87; P=0.016) and in non-Asian populations (OR: 2.36; 95% CI: 1.18-4.73; P=0.016). No significant impact of COPD on BPF risk was observed in Asian patients (OR: 1.48; 95% CI: 0.85-2.57; P=0.16). No significant heterogeneity or publication bias was discovered across the included studies.

CONCLUSIONS

Our meta-analysis indicates that COPD can significantly predispose to BPF formation in patients undergoing lung cancer surgery. Because some limitations still exist in this meta-analysis, our findings should be further verified and modified in the future.

Relationship between dose-volume parameters and pulmonary complications after neoadjuvant chemoradiotherapy followed by surgery for lung cancer

PURPOSE

This study evaluated the relationship between dose-volume histogram (DVH) parameters and pulmonary complications after neoadjuvant chemoradiotherapy (NACRT) followed by surgery for lung cancer. We also examined a new DVH parameter, because the unresected lung should be more spared than the later resected lung.

PATIENTS AND METHODS

Data from 43 non-small cell lung cancer patients were retrospectively analyzed. The DVH parameters of the lung were calculated from the total bilateral lung volume minus (1) the gross tumor volume (DVHg) or (2) the later resected lung volume (DVHr). Radiation pneumonitis (RP) and fistula, including bronchopleural and pulmonary fistula, were graded as the pulmonary complications. Factors affecting the incidences of grade 2 or higher RP (≥G2 RP) and fistula were analyzed.

RESULTS

Sixteen patients (37 %) experienced ≥G2 RP and a V20 value of the total lung minus the later resected lung (V20r) ≥ 12 % was a significant factor affecting the incidence of ≥G2 RP (p = 0.032). Six patients (14 %) developed a fistula and a V35 value of the total lung minus the gross tumor (V35g) ≥ 19 % and a V40g ≥ 16 % were significant factors affecting the incidence of fistula (p = 0.002 and 0.009, respectively).

CONCLUSION

These DVH parameters may be related to the incidences of ≥G2 RP and fistula.

The rising incidence of pediatric empyema with fistula

PURPOSE

The incidence and etiology of empyema with fistula (EWF) in children is unknown. We analyzed a national database to define the epidemiology and diagnoses associated with this condition.

METHODS

Discharge data from the Kids' Inpatient Database were reviewed for EWF (ICD-9 diagnosis code 510.0) in children ≤18 years from 2000 to 2012. Patient characteristics, institutional data, and accompanying conditions were evaluated. Weighted national estimates were calculated and incidence compared across years (2000, 2003, 2006, 2009) using the Rao-Scott Chi Square.

RESULTS

From 2000 to 2012, 908 children were hospitalized with EWF. Age distribution was bimodal. Common primary diagnoses related to the hospitalization were pneumonia/pulmonary abscess (31.2 %) and EWF (19.3 %). Manipulation of the pleural space (e.g. decortication, drainage) comprised 45.0 % of procedures. Incidence rates of EWF increased (Rao Scott Adjusted Chi Square: 16.13, p < 0.01) over the study period. Although not statistically significant, median length of stay and age of diagnosis decreased and increased, respectively.

CONCLUSION

This first, national pediatric EWF study reveals rising incidence during the years 2000-2009. Despite limitations in ICD-9 coding, concomitant primary diagnoses and procedures suggest bronchopleural fistulae likely represent the vast majority of cases in this cohort. Multi-institutional studies are needed to confirm etiology and characterize outcome of EWF.

Novel bronchoscopic treatment for bronchopleural fistula using adipose-derived stromal cells

BACKGROUND AIMS

In this report, we describe the successful bronchoscopic management of bronchopleural fistula in two patients, using autologous adipose-derived stromal cells. Cell therapy was considered for 2 cases of bronchopleural fistula refractory to conventional surgical treatment after control of the primary disease was confirmed and active pleural infection was ruled out. Briefly, adipose-derived stem cells were first isolated from lipoaspirate and used without cell expansion. In 24 months, we have not received more patients with bronchopleural fistula in our hospital and we have not been able to include more patients.

METHODS

Briefly, adipose-derived stem cells were first isolated from lipo-aspirate and used without cell expansion. A bronchopleural fistula was identified through bronchoscopy, and the mucosa surrounding the fistula was ablated with an argon plasma coagulator. Isolated stem cells were then endoscopically injected into the de-epithelialized area and fistulous tract. If an open thoracostomy was present at the time of the intervention, the same procedure was performed on the pleural side. Bronchoscopic follow-up was scheduled weekly during the first month, monthly during the first year, and then yearly. The underlying etiologies were left pneumonectomy and right lower video-assisted lobectomy for non-small-cell lung cancer. The sizes of the fistulas were 6 mm and 3 mm in diameter, respectively.

RESULTS

Both patients were discharged on the first postoperative day. The 3-year follow-up revealed a successful and maintained fistula closure, no treatment-related adverse reactions, nonlocal malignant recurrence and improved quality of life.

CONCLUSIONS

This preliminary study showed that bronchoscopic application of autologous adipose-derived stem cells is a feasible, safe and effective procedure for treating bronchopleural fistula.

Endobronchial closure of bronchopleural fistula using Amplatzer device

BACKGROUND

Bronchopleural fistulas (BPF) are a dreaded complication after lobectomy and pneumonectomy and are associated with high morbidity and mortality. BPF are treated by a range of surgical and endoscopic techniques. Amplatzer devices (ADs), normally used for the closure of cardiac defects, may enable the minimally invasive occlusion of these defects.

METHODS

Three patients with BPF were treated with the bronchoscopic closure of BPF using AD. Under general anaesthesia, the fistula was located using bronchography and the self-expanding AD was placed under direct bronchoscopic and fluoroscopic guidance into the fistula. Bronchography was used to control the complete occlusion of the BPF.

RESULTS

Three male patients with a mean age of 63 years (range, 53-73 years) were successfully treated by AD. Two BPF occurred after lobectomy of the right lower lobe for lung cancer and one after right pneumonectomy for lung cancer. In all patients the bronchoscopic procedure was successful and symptoms of empyema and BPF showed no recurrence over a median follow-up of 22 months.

CONCLUSIONS

Endobronchial closure of BPF using AD represents a safe, effective and promising method for postoperative BPF.

Polyglycolic acid mesh occlusion for postoperative bronchopleural fistula

BACKGROUND

Postoperative bronchopleural fistula is one of the most life-threatening complications after anatomical pulmonary resection. Bronchopleural fistula may cause empyema and aspiration pneumonia with subsequent acute respiratory distress syndrome. Surgical interventions for bronchopleural fistula can prolong hospitalization and impair postoperative quality of life. Postoperative care requires minimally invasive endoscopic occlusion.

METHODS

We retrospectively reviewed the records of 7 patients who developed bronchopleural fistula among 689 patients who underwent segmentectomy or lobectomy without sleeve resection for lung cancer in Jichi Medical University from 2009 to 2013. Bronchopleural fistula occurred in the right lower bronchial stump in 3 patients, in the superior segmental bronchus of the right lower lobe in 2, in the superior segmental bronchus of the left lower lobe in one, and in the right intermediate bronchus in one. Flexible bronchoscopy was used to occlude 3-mm fistulas with polyglycolic acid mesh in 2 patients. Larger fistulas in 5 patients were occluded with polyglycolic acid mesh plus fibrin glue to secure the mesh. The median procedure was 37 min. Procedures were considered complete upon resolution of air leakage from the chest drainage system.

RESULTS

Bronchoscopic interventions for bronchopleural fistula were repeated an average of 2 times. No procedure-related complications or death occurred. Bronchoscopic interventions were successful in all patients.

CONCLUSIONS

Bronchoscopic occlusion with polyglycolic acid mesh with or without fibrin glue is easy and feasible as the first step in postoperative management of bronchopleural fistula.

The Rationale for Treatment of Postresectional Bronchopleural Fistula: Analysis of 52 Patients

BACKGROUND

Bronchopleural fistulas are a major therapeutic challenge. We have reviewed our experience to establish the best choice of treatment.

METHODS

From January 2001 to December 2013, the records of 3,832 patients who underwent pulmonary anatomic resections were retrospectively reviewed.

RESULTS

The overall incidence of bronchopleural fistulas was 1.4% (52 of 3,832): 1.2% after lobectomy and 4.4% after pneumonectomy. Pneumonectomy vs lobectomy, right-sided vs left-sided resection, and hand-sewn closure of the stump vs stapling showed a statistically significant correlation with fistula formation. Primary bronchoscopic treatment was performed in 35 of 52 patients (67.3%) with a fistula of less than 1 cm and with a viable stump. The remaining 17 patients (32.7%) underwent primary operation. The fistula was cured with endoscopic treatment in 80% and with operative repair in 88.2%. Cure rates were 62.5% after pneumonectomy and 86.4% after lobectomy. The cure rate with endoscopic treatment was 92.3% in very small fistulas, 71.4% in small fistulas, and 80% in intermediate fistulas. The cure rate after surgical treatment was 100% in small fistulas, 75% in intermediate fistulas, and 100% in very large fistulas. Morbidity and mortality rates were 5.8% and 3.8%, respectively.

CONCLUSIONS

The bronchoscopic approach shows very promising results in all but the largest bronchopleural fistulas. Very small, small, and intermediate fistulas with a viable bronchial stump can be managed endoscopically, using mechanical abrasion, polidocanol sclerosing agent, and cyanoacrylate glue. Bronchoscopic treatment can be repeated, and if it fails, does not preclude subsequent successful surgical treatment.

Surgical management of recalcitrant peripheral bronchopleural fistula with empyema: A preliminary experience

Background:

Peripheral bronchopleural fistula (BPF) and empyema from necrotising infections of the lung and pleural is difficult to treat resulting in increased morbidity and mortality rates. The aim of this study was to show the effectiveness of the Latissimus Dorsi muscle (LDM) flap and patch closure techniques in the management of recalcitrant peripheral BPFs with the aid of thoracotomy.

Materials and Methods:

Five patients with BPF and empyema out of 26 patients who were initially treated for empyema thoracis by single or multiple chest tube insertions and/or ultrasound-guided drainage were prospectively identified and followed up for 2 years, postoperatively. The postoperative hospital stay, dyspnoea score, function of the ipsilateral upper limb and any deformity of chest wall were assessed at follow-up visits by asking relevant questions.

Results:

The mean age was 46.8 years (23-69 years) (4 males and 1 female). The cause of the BPF in 18 patients was Mycobacterium tuberculosis and 8 was pneumonia. The mean total months of the chest tube insertions was 1.5 months (range 2.5-6 months) prior to the thoracotomy and closure of fistula procedures performed on the 5 patients (with LDM flap in 4 patients and pleural patch in 1 patient). The complications recorded were: subcutaneous emphysema, residual pus and haemothorax in three patients. The mean postoperative hospital stay was 20.8 days (13-28 days);There was improved dyspnoea score to 1 or 2 in the 5 (19.2%) patients. There was no recurrence of BPF or residual pus in all the patients; no loss of function or deformity of the chest wall.

Conclusion:

The use of LDM Flap was effective in treating peripheral BFP without any adverse long-term outcome.

A novel approach to endobronchial closure of a bronchial pleural fistula

Bronchopleural fistula presents an important and challenging management problem after lung parenchymal resection. The mainstay of treatment has been surgical revision of the bronchial stump, however increasingly endobronchial therapies are being employed. We report the novel use of a liquid embolic agent with an Amplatzer vascular plug to seal a chronic bronchopleural fistula. Using rigid bronchoscopy, fluoroscopy, radio opaque liquid embolic agent, and the Amplatzer vascular plug, we were able to demonstrate not only feasibility but also safety and a marked reduction in symptoms consistent with successful closure of the bronchopleural fistula.

The use of self-expandable metallic stents in the airways in the adult population

The airway stents restore patency in the face of luminal compromise from intrinsic and/or extrinsic pathologies. Luminal compromise beyond 50% often leads to debilitating symptoms such as dyspnea. Silicone stents remain the most commonly placed stents worldwide and have been the "gold standard" for the treatment of benign and malignant airway stenoses over the past 20 years. Nevertheless, silicone stents are not the ideal stents in all situations. Metallic stents can serve better in some selected conditions. Unlike silicone stents, there are large and increasing varieties of metallic stents available on the market. The lack of prospective or comparative studies between various types of metallic stents makes the choice difficult and expert-opinion based. International guidelines are sorely lacking in this area.

Advances in interventional pulmonology

Interventional pulmonology (IP) remains a rapidly expanding and evolving subspecialty focused on the diagnosis and treatment of complex diseases of the thorax. As the field continues to push the leading edge of medical technology, new procedures allow for novel minimally invasive approaches to old diseases including asthma, chronic obstructive pulmonary disease and metastatic or primary lung malignancy. In addition to technologic advances, IP has matured into a defined subspecialty, requiring formal training necessary to perform the advanced procedures. This need for advanced training has led to the need for standardization of training and the institution of a subspecialty board examination. In this review, we will discuss the dynamic field of IP as well as novel technologies being investigated or employed in the treatment of thoracic disease.

Closure of a broncho-pleural fistula using an atrial septal defect occluder

Broncho-pleural fistulae (BPF) are recognised as a rare complication following pneumonectomy. We describe a patient, who after failing conservative treatment, underwent closure of a persistent fistula with an atrial septal defect (ASD) occluder. Additionally we review the literature regarding management of BPF and the emerging role of cardiac defect closure devices as a possible treatment option.

Bronchoscopic blood patch for treatment of persistent alveolar-pleural fistula

Airway pleural fistulas remain a significant treatment challenge despite improved antimicrobial therapy and surgical techniques. We present a case of a 56-year-old female who was admitted with severe bilateral cavitary pneumonia requiring mechanical ventilation. The patient suffered bilateral pneumothoraces related to necrotic pneumonia resulting in bilateral chest tube placement. Despite conservative measures, the air leak persisted preventing chest tube removal. Bronchoscopy with Fogarty balloon (Edwards) occlusion was performed in attempts to isolate an airway responsible for the air leak. No one single airway could be bronchoscopically occluded to isolate the right-sided fistula. Efforts were focused on the left airway where the fistula could be isolated to the anteromedial basal segment. Several alternating layers of an absorbable hemostat (knitted fabric prepared by controlled oxidation of cellulose-Surgicel; Ethicon) were placed within the left anteromedial basal segment using bronchoscopy forceps. Through a cut Fogarty balloon, 3 mL of the patient's blood was delivered onto the absorbable hemostat to create an occluding blood patch. No air leak was present at the completion of the procedure. While on mechanical ventilation, the left chest tube was removed 2 days later without radiographic recurrence of her pneumothorax.

Use of an Amplatzer Device for Endoscopic Closure of a Large Bronchopleural Fistula following Lobectomy for a Stage I Squamous Cell Carcinoma

Bronchopleural fistulas can occur as a rare but severe complication after pulmonary resection. Established guidelines for the proper treatment of patients with bronchopleural fistulas do not exist. Apart from attempts to close the fistula, emphasis is placed on preventive measures, early treatment with antibiotics, drainage of the empyema and aggressive nutritional and rehabilitative support. For inoperable patients, endoscopic procedures are the only therapeutic option. Unfortunately, large (>8 mm) or central bronchopleural fistulas are usually not suitable for such endoscopic management. Recently, some groups have published a few case reports about a novel technique for the endobronchial closure of bronchopleural fistulas, using an Amplatzer device, originally designed for transcatheter closure of cardiac septal defects. We applied the same technique as a life-saving treatment in a ventilated patient who was considered inoperable due to a high oxygen need. The operation was successful. The patient could be weaned from ventilation and was eventually discharged from the hospital to a rehabilitation facility several weeks after the insertion of the device. Until now, endoscopic techniques have only been useful for the treatment of small, peripheral, bronchopleural fistulas and even then only as a bridge to surgery in high-risk surgical patients. In this case report, we demonstrate that the use of an Amplatzer device can expand the importance of endoscopic techniques in the treatment of bronchopleural fistulas. An Amplatzer device, for endobronchial closure, can indeed be administered for large and central bronchopleural fistulas. Moreover, it can be considered as a definite alternative to surgery in inoperable patients.

Right bronchopleural fistula treated with a novel, Y-shaped, single-plugged, covered, metallic airway stent

BACKGROUND

Bronchopleural fistula (BPF) is an infrequent but life-threatening complication after pneumonectomy. The incidence of BPF reported in the literature varies from 0.3% to 20%.

PURPOSE

To determine the feasibility and efficacy of using Y-shaped, single-plugged, covered, metallic stents to treat right bronchopleural fistulas.

MATERIAL AND METHODS

We have designed a Y-shaped, single-plugged, covered, self-expandable, metallic airway stent to fit the specific anatomy of the right main bronchus. The stent has a main tube and two branches, resembling an inverted "Y". One of the branches is closed (plugged) and bullet-shaped; the other one tubular and open. The entire stent is encased in a nitinol wire mesh. Stent size can be individualized using multislice spiral computed tomography (MSCT) measurements of the airways. Under fluoroscopic guidance, we have implanted 15 Y-shaped stents in 15 patients with right bronchopleural fistulas.

RESULTS

Stent insertion was successful in all patients. All fistulas were successfully closed immediately after stent placement. Follow-up was performed for 1-34 months. Positive clinical outcomes were seen in 13 of 15 patients. Two patients died of intractable pulmonary infection and multiorgan failure. The fistula completely healed and the stent could be removed in five patients; however, two of them were left with a small, aseptic, residual right lung cavity. The remaining eight patients are still alive with the stent in situ.

CONCLUSION

The placement of Y-shaped, single-plugged, covered, self-expandable metallic airway stents seems to be a feasible and safe method for the treatment of bronchopleural fistulas involving the right main bronchus. This stent is a promising therapeutic alternative for bronchopleural fistulas involving the right main bronchus.

Autologous platelet-poor plasma decreases the bronchial stump necrosis in rat

BACKGROUND

Necrosis of the bronchial stump is a very important trigger for bronchopleural fistula. The administration of local autologous platelet-poor plasma (PPP) could protect the bronchial stump.

MATERIALS AND METHODS

Left pneumonectomy was performed in 25 Sprague-Dawley rats. Animals were randomly assigned to a control group (n=13) and PPP group (n=12). PPP was locally administered on the bronchial stump after pneumonectomy. We analyzed histologic changes in the bronchial stump and messenger RNA expression changes of genes involved in wound repair at 10 and 20 d.

RESULTS

Local PPP treatment produced a mass of fibrous tissue surrounding the bronchial stump and significantly decreased the presence of necrosis at 20 d. PPP increased the expression of insulin like growth factor 1 at 10 d although it did not reach statistical significance.

CONCLUSIONS

Our findings indicate that local PPP treatment of the bronchial stump after pneumonectomy decreased necrosis and could have a protective effect on the bronchial stump.

Bronchoscopic management of bronchopleural fistula with intrabronchial instillation of glue (N-butyl cyanoacrylate)

Context:

Bronchopleural fistula (BPF) is a communication between the pleural space and bronchial tree.

Materials and Methods:

A series of 9 cases are reported where BPF was identified and managed with intrabronchial instillation of glue (N-butyl-cyanoacrylate) through a video bronchoscope.

Results:

Out of 9 patients the BPF was successfully sealed in 8 cases (88.88%). In 1 patient of postpneumonectomy, the fistula was big, that is >8 mm who had a recurrence after the procedure. In one case of pyopneumothorax the leak reduced slowly and it took us 14 days to remove the intercostal drainage tube. Rest of the patients had a favorable outcome. No complications were observed in a follow-up of 6 months.

Conclusions:

In our opinion, it is a cost-effective, viable, and safe alternative compared with costly, time-consuming, and high-risk surgical procedures.

[Endoscopic management of broncho-pleural fistula in a patient with acute respiratory distress syndrome after pneumonectomy]

We report the management of endobronchial a patient admitted to the ICU for respiratory distress in the consequences of an surgical recovery of his left pneumonectomy complicated by bronchopleural fistula as part of a bronchial carcinoma non-small cell type adenocarcinoma. Endobronchial treatment by gluing of the fistula may be an alternative to surgery. We discuss its indication in the treatment of bronchial fistula.

Endobronchial closure of bronchopleural fistulas with Amplatzer vascular plug

OBJECTIVE

Bronchopulmonary fistula (BPF) is a severe complication following lobectomy or pneumonectomy and is associated with a high rate of morbidity and mortality. We have developed a novel minimally invasive method of central BPF closure using Amplatzer vascular plug (AVP) device that was originally designed for the transcatheter closure of vascular structures in patients with small BPF.

METHODS

Patients with BPFs were treated under conscious sedation by bronchoscopic closure of BPFs using AVP. After locating the fistula using bronchography, the self-expanding nitinol made AVP occluder to be delivered under direct bronchoscopic guidance over a loader wire into the fistula followed by bronchography to assure correct device positioning and sealing of the BPF.

RESULTS

Six AVPs were placed in five patients, four males and one female, with a mean age of 62.3 years (range: 51-82 years). The underlying disorders and etiologies for BPF development were lobectomy (two patients), pneumonectomy for lung cancer (one patient), lobectomy due to necrotizing pneumonia (one patient), and post-tracheostomy tracheo-pleural fistula (one patient). In all the patients, the bronchoscopic procedure was successful and symptoms related to BPF disappeared following closure by the AVP. The results were maintained over a median follow-up of 9 months (range: 5-34 months).

CONCLUSIONS

Endobronchial closure using the AVP is a safe and effective method for treatment of small postoperative BPF. The ease of their implantation by bronchoscopy under conscious sedation adds this novel technique to the armatorium of minimally invasive modalities for the treatment of small BPF.

[Clinical experiences of bronchopleural fistula-related fatal hemoptysis after the resection of lung cancer: a report of 7 cases]

背景与目的

大咯血是肺癌术后少见但严重的并发症。本研究旨在探讨致死性大咯血的发生机制、危险因素、先兆症状及预防和治疗措施。

方法

2007年4月-2011年5月四川大学华西医院共行肺癌手术1, 737例，围手术期死亡20例，其中死于大咯血7例，复习7例患者的临床资料并结合文献进行分析。

结果

大咯血是肺癌术后第2位死亡原因。7例中6例直接死于大咯血，1例因大咯血行二次手术，最终死于肺部感染、呼吸衰竭。4例发生过先兆出血症状。4年大咯血发生率为0.4%（7/1, 737）。

结论

支气管胸膜瘘引起的支气管血管瘘是大咯血发生的机制，糖尿病为高危因素，早期诊断、早期外科治疗支气管胸膜瘘或支气管血管瘘可避免大咯血死亡的发生。

Endobronchial closure of bronchopleural fistulae using amplatzer devices: our experience and literature review

Bronchopulmonary fistulae (BPFs) are a severe complication of lobectomy and pneumonectomy and are associated with high rates of morbidity and mortality. We have developed a novel, minimally invasive method of central BPF closure using Amplatzer devices (ADs) that were originally designed for the transcatheter closure of cardiac defects. Ten patients with 11 BPFs (eight men and two women, aged 66.3±10.1 years [mean±SD]) were treated under conscious sedation with bronchoscopic closure of the BPFs using ADs. A nitinol double-disk occluder device was delivered under direct bronchoscopic guidance over a guidewire into the fistula. By extruding a disk on either side of the BPF, the fistula was occluded. Bronchography was performed by injecting contrast medium through the delivery sheath following the procedure to ensure correct device positioning. In nine patients, the procedure was successful and symptoms related to the BPF disappeared following closure by the AD. The results were maintained over a median follow-up period of 9 months. Therefore, we state that endobronchial closure using an AD is a safe and effective method for treatment of a postoperative BPF.

Bronchopulmonary fistula closure with an Amplatzer Multi-Fenestrated Septal Occluder

Bronchopulmonary fistula, a communication between the bronchial airway and the pleural space, is associated with increased morbidity and mortality often requiring surgical therapy. A successful closure of a fistula from the posterior trachea to the right apical pleural space in a 60-year-old man with a history of Barrett's esophagus, esophagectomy, multiple pulmonary infections, and right upper lobectomy using an Amplatzer Multi-Fenestrated Septal Occluder via a transbronchial approach is reported.

Bronchopleural fistula treated with a silicone-covered bronchial occlusion stent

Bronchopleural fistula (BPF), one of the potentially fatal complications after pulmonary resection, remains a therapeutic challenge. We present a case of postpneumonectomy BPF successfully managed with a silicone-covered bronchial occlusion stent. The BPF was successfully occluded without complications, and there was no stent migration or any other problem seen at the 1-year follow-up. This novel technique can be an effective option for the treatment of postoperative BPF.

Endobronchial closure of total bronchopleural fistula with Occlutech Figulla ASD N device

Bronchopleural fistula may be treated by medical, endoscopic, and surgical techniques, but large fistulas remain a challenge to be closed using endoscopic techniques. We describe the endoscopic closure of a bronchial total fistula with the Occlutech Figulla ASD N device (International Occlutech AB, Helsingborg, Sweden), originally designed for closure of an atrial septal defect. The procedure was conducted without general anesthesia or rigid bronchoscopy, bronchography, or radioscopy. An immediate reduction in the air leak was observed and also later on bronchoscopy, as the device was almost covered by granulation tissue. The endobronchial technique described seems to be safe and effective to manage large bronchopleural fistulas.

Bronchopleural fistula: an update for intensivists

Bronchopleural fistula is a potentially fatal condition that may result after a variety of clinical conditions, most commonly after pulmonary resection. Either surgical or bronchoscopic repair is required to definitively correct these lesions, though a small number may resolve spontaneously with optimal ventilatory care and other options available to an intensivist in the management of this complex condition. The successful management of a bronchopleural fistula depends on formulating a treatment strategy tailored to individual patient needs.

Silver nitrate through flexible bronchoscope in the treatment of bronchopleural fistulae

OBJECTIVE

Bronchopleural fistula is a severe complication after pneumonectomy or lobectomy. Local application of silver nitrate to seal bronchopleural fistulae was reported once 25 years ago with considerable success but was never repeated. We aimed to develop and evaluate a concrete technique of applying silver nitrate through a flexible bronchoscope to treat bronchopleural fistulae in central airways.

METHODS

Consecutive patients with small (<or=5 mm) bronchopleural fistulae in proximal airways were included in the study. After measurement of bronchopleural fistula size through a flexible videobronchoscopy, a standard bronchoscopic cytology brush covered with silver nitrate was passed through the working channel of the scope and was rubbed against the fistula's orifice producing blanching and edema on the mucosa. This procedure was repeated until closure of the fistula's orifice (treatment success) or absence of any tissue response after 2 bronchoscopic sessions (treatment failure).

RESULTS

Of 16 patients referred, 5 were excluded from treatment because of large (>5 mm) fistulae. Among the 11 treated patients (median fistula diameter 3 mm, range 2-5 mm), treatment failure was observed in 2 patients in whom treatment was attempted early (15 days postsurgery). In the remaining 9 patients, treatment success was achieved (81.8% success rate) after a median of 2.5 (range 1-10) applications of silver nitrate. After 11 (0.5-24) months of follow-up, no relapse was observed among successfully treated fistulae.

CONCLUSION

The local application of silver nitrate through a flexible bronchoscopic brush produced a burn and healing process on the mucosa of small bronchopleural fistulae of the central airways, leading to effective and lasting treatment in most cases.

Use of Amplatzer device for endobronchial closure of bronchopleural fistulas

Bronchopulmonary fistula (BPF) is associated with high morbidity and mortality. It occurs as an uncommon but often severe complication of pneumonectomy. BPF may be treated by a range of surgical and medical techniques, including chest drain, Eloesser muscle flap, omental flap, transsternal bronchial closure, thoracoplasty, and prolonged therapy with antibiotic regimens. The use of bronchoscopy has been reported for the delivery of biological glue, coils, covered stents, and sealants. In this work, we describe a novel method of BPF closure using the Amplatzer device, which is commonly used for transcatheter closure of atrial septal defects.

Fibrin glue closure of persistent bronchopleural fistula following pneumonectomy for post-tuberculosis bronchiectasis

We report a case of a persistent bronchopleural fistula following a pneumonectomy for post-tuberculosis bronchiectasis. The patient had two unsuccessful surgical attempts at closing of the fistula. Further surgical attempts were technically were not possible. Bronchoscopic closure was achieved by injecting human fibrin glue into the fistula via a catheter. Closure of the broncho-pleural fistula was confirmed by repeated ventilation scan over a period of 2 months. Endoscopic closure of small bronchopleural fistulae is an attractive option in children with significant underlying lung disease.

Carinaplasty airway closure: a technique for right pneumonectomy

BACKGROUND

Bronchopleural fistula remains a significant source of morbidity and mortality after right pneumonectomy. We reviewed our initial experience with a novel "carinaplasty" airway closure technique aimed at reducing the risks of bronchopleural fistula.

METHODS

Since 2003, 51 consecutive patients who required right pneumonectomy at our institution underwent carinaplasty airway closure. Malignancy was the indication for pneumonectomy in all but 2 patients. Eighteen patients received preoperative radiation therapy, including 5 patients who received 6000 cGy or more. Postoperatively, 17 patients required mechanical ventilation for an average of 13 days (range, 3 to 42 days).

RESULTS

Six operative deaths occurred, four (8.6%) of which were in the 46 patients who did not receive preoperative bleomycin. All deaths were secondary to respiratory failure. None of these patients demonstrated bronchopleural fistula despite mechanical ventilation for up to 30 days. In 2 patients, a small (< or = 2 mm) bronchopleural fistula developed at 3 and 4 months after operation, respectively. Both patients presented with minor symptoms and spontaneously healed within 1 month after open drainage.

CONCLUSIONS

These data suggest that the carinaplasty airway closure may reduce the morbidity and mortality of bronchopleural fistula after right pneumonectomy. We speculate mechanisms include elimination of the bronchial stump diverticulum in combination with more submucosal blood supply at the suture line compared with the standard bronchial closures. We currently consider carinaplasty airway closure the technique of choice at our institution and plan continued evaluation.

Comparative study of the resistance of manual and mechanical sutures in the bronchial stump of dogs submitted to left pneumonectomy

OBJECTIVE

To compare the resistance of manual suture with that of mechanical suture immediately after the suture of the left bronchial stump of dogs submitted to pneumonectomy.

METHODS

A total of 15 mixed-breed dogs of both genders, each weighing between 8 and 23 kg, were randomly divided into 2 groups. In group I (n = 7), the bronchial stump was sutured manually (the Sweet method) and, in group II (n = 8), it was stapled. Immediately after the closure of the bronchial stump, the intratracheal pressure was progressively increased in a controlled manner.

RESULTS

The mean rupture pressure of the bronchial stump suture line was 33.71 mmHg in group I and 89.87 mmHg in group II (p < 0.01).

CONCLUSION

These data allowed us to conclude that mechanical suture of the bronchial stump, submitted to pressure immediately after closure, is more resistant than is manual suture in dogs submitted to pneumonectomy.

Transthoracic Closure of a Postpneumonectomy Bronchopleural Fistula With Coils and Cyanoacrylate

Standard treatment for persistent bronchopleural fistulas involves thoracotomy with primary closure and transposition of a vascularized muscle flap to the bronchial leak site. This major operation may be ineffective or medically contraindicated. We successfully treated 2 patients by insertion of coils and cyanoacrylate glue into and adjacent to the fistula of a postpneumonectomy bronchial stump with computed tomographic-guided transthoracic needle. The coils served as scaffolding for cyanoacrylate glue to control the bronchopleural fistula.

The use of endobronchial valve device to eliminate air leak

We evaluated an endobronchial valve device in the treatment of surgically created air leak or pneumothorax by eliminating antegrade flow.

METHODS

Six sheep underwent general anesthesia with positive pressure ventilation and left thoracotomy. After division of the mediastinal pleura, the contralateral cranial lobe was identified and a 2.5 cmx1.5 cm laceration created with resultant air leak. Using bronchoscopy, we deployed a valve device in the bronchus of the injured segment. Chest drainage tube was placed and the thoracotomy closed. At 1 week (n=3) and 4 weeks (n=3), the animals underwent general anesthesia, bronchoscopy and right thoracotomy.

RESULTS

All animals survived the procedure. Bronchoscopic valve device placement in the segmental bronchus resolved the air leak immediately. After closure of thoracotomy, the chest tube demonstrated minimal drainage with no air leak. At 1 and 4 weeks, bronchoscopy showed no change in device location, and the treated segments were atelectatic with fibrous scar at the injured site.

CONCLUSIONS

Collapse of a selected lung segment with resolution of air leak can be achieved using bronchoscopically implanted valve device. The valve device may facilitate treatment of patients with post-surgical or post-traumatic persistent air leak.

Use of a Removable Endobronchial Valve for the Treatment of Bronchopleural Fistula

We report the case of a patient with a prolonged bronchopleural fistula and empyema that were successfully treated by the placement of a removable, unidirectional endobronchial valve. This is the first report of the use of such a device for this indication.

A Novel Approach: Treatment of Bronchial Stump Fistula With a Plugged, Bullet-Shaped, Angled Stent

PURPOSE

The purpose of this study was to evaluate the initial clinical efficacy of a plugged, bullet-shaped, angled stent for managing bronchial stump fistula.

DESCRIPTION

The stent consisted of two parts. The body part had a diameter of 18 approximately 25 mm and was 30 mm long in a tubular configuration covered with polyethylene at the lower part. The bronchial limb was a bullet-shaped configuration with a dead end, 11 approximately 14 mm in diameter, 10 approximately 30 mm long covered with polyethylene. The body part and the bronchial limb were connected at the angled portion without overlap with use of nitinol wire and polyethylene. The stents were placed in 6 patients under fluoroscopic guidance.

EVALUATION

Stent placement was technically successful in all patients without complications. Immediate closure of the bronchial stump fistula was achieved in all patients after stent placement. Follow-up of 4 approximately 16 months, permanent closure of the bronchial pleural fistula was achieved in 4 patients (66.67%), and permanent closure of the bronchial stump fistula was achieved in 5 patients (83.33%). No complications occurred.

CONCLUSIONS

Closure of the bronchial stump fistula with the stent was a simple, safe, and effective procedure.

Pulmonary complications following major lung resection for benign and malignant lung diseases

OBJECTIVE

To assess the incidence and to identify the possible associated risk factors for postoperative pulmonary complications after major lung resection.

SUBJECTS AND METHODS

One hundred and sixty-eight consecutive patients undergoing major lung resection for benign and malignant lung disease over a 3-year period were included in the study. Preoperative assessment clinical parameters, intraoperative and postoperative events were recorded. Pulmonary complications were noted according to a precise definition. The risk of complications associated with age, comorbidity, forced vital capacity (FVC), blood transfusion and extended operation was evaluated using logistic regression analysis.

RESULTS

The mean age of the patients was 47.1 years (range 16-80 years), 137 (77%) patients underwent lobectomy, 23 (14%) pneumonectomy, and 15 (9%) bilobectomy. Forty-six (27%) patients developed postoperative pulmonary complications and 2 (1.1%) died within 30 days following the operation. Age > or =65 years (OR 3.7, 95% CI: 1.5-8.6, p = 0.002), the presence of comorbid cardiopulmonary disease (OR 0.2, 95% CI: 0.1-0.5, p = 0.001), FVC <50% (OR 0.2, 95% CI: 0.1-0.8, p = 0.02), blood transfusion (OR 0.2, 95% CI: 0.1-0.4, p = 0.0001), and extended operation (OR 0.2, 95% CI: 0.07-0.6, p = 0.005) were the identified factors associated with the development of postoperative pulmonary complications, which necessitated an increased length of hospital stay.

CONCLUSION

Postoperative pulmonary complications are more likely to develop in patients with age > or =65 years with comorbid cardiopulmonary disease, FVC <50%, blood transfusion, and extended operation.