A prospective, randomized, controlled trial of the effectiveness of BioGlue in treating alveolar air leaks

An evaluation of the surgical morbidity of polyglycolic acid felt in pulmonary resections

PURPOSE

Several methods using various materials have so far been reported to repair pulmonary air leaks, which is an essential problem in general thoracic surgery. Although the efficacy of these materials has been often discussed, the safety has only rarely been examined. This study evaluated the safety of polyglycolic acid (PGA) felt, one of the most commonly materials employed at this institute.

METHODS

A total of 1026 patients who underwent a pulmonary resection from January 2000 to December 2007 were enrolled in this study. The status of PGA use, type of surgery, and incidence and type of surgical site infection (SSI) were reviewed retrospectively from the clinical records.

RESULTS

Three hundred and forty-four patients were treated with PGA. Although two patients in the PGA group underwent a reoperation, PGA itself was not causative. In one case, the PGA felt strictly adhered to both the parietal and visceral pleura.

CONCLUSION

Polyglycolic acid felt can be used safely in general thoracic surgery and did not influence the incidence or type of SSI. Surgeons should be aware of the possibility of adhesion around the material at the time of re-operation, and the criteria of PGA use should be strictly discussed.

Surgical sealant for preventing air leaks after pulmonary resections in patients with lung cancer

BACKGROUND

Postoperative air leak is a frequent complication after pulmonary resection for lung cancer. It may cause serious complications, such as empyema, or prolong the need for chest tube and hospitalization. Different types of surgical sealants have been developed to prevent or to reduce postoperative air leaks. A systematic review was therefore undertaken to evaluate the evidence on their effectiveness.

OBJECTIVES

To evaluate the effectiveness of surgical sealants in preventing or reducing postoperative air leaks after pulmonary resection for lung cancer.

SEARCH STRATEGY

We searched the electronic databases MEDLINE (1966 to September 2008), EMBASE (1974 to September 2008), and the Cochrane Central Register of Controlled Trials (CENTRAL)(The Cochrane Library, Issue 3, 2008) and listed references. We hand searched conference proceedings to identify published and unpublished trials.

SELECTION CRITERIA

We included randomized controlled clinical trials in which standard closure techniques plus a sealant were compared with the same intervention with no use of any sealant in patients undergoing elective pulmonary resection provided that a large proportion of the patients studied had undergone pulmonary resection for lung cancer.

DATA COLLECTION AND ANALYSIS

Four reviewers independently selected the trials to be included in the review, assessed methodological quality of each trial and extracted data using a standardized form. Because of several limitations, narrative synthesis was used at this stage.

MAIN RESULTS

Sixteen trials, with 1642 randomized patients in total were included. In thirteen trials there were differences between treatment and control patients in reducing postoperative air leaks. This reduction proved to be significant in six trials. Three trials showed a significant reduction in time to chest drain removal in the treatment group. In two trials, the percentage of patients with persistent air leak was significantly smaller in the treatment group. Finally, three trials including 352 patients showed a statistically significant reduction in length of hospital stay.

AUTHORS' CONCLUSIONS

Surgical sealants reduce postoperative air leaks and time to chest drain removal but this reduction is not always associated with a reduction in length of postoperative hospital stay. Therefore, systematic use of surgical sealants with the objective of reducing hospital stay cannot be recommended at the moment. More and larger randomized controlled clinical trials are needed.

Surgical adhesive increases burst pressure and seals leaks in stapled gastrojejunostomy

BACKGROUND

Leakage from a gastrointestinal anastomosis in bariatric surgery is a catastrophic complication and is the second-most preventable cause of death after Roux-en-Y gastric bypass. Several adjuncts for staple line reinforcement have been investigated to reduce the incidence of this complication. The purpose of our study was to determine whether a commercially available tissue sealant (BioGlue) could reinforce a stapled gastrojejunal anastomosis and whether it could seal an artificially created anastomotic leak.

METHODS

Circular-stapled gastrojejunostomies were performed on freshly explanted porcine stomach and intestine. Experiment 1 consisted of 10 control nonreinforced gastrojejunostomies and 10 gastrojejunostomies reinforced with BioGlue. The staple lines were submerged in saline and exposed to increased pressure using constant-rate infusion of air. The burst pressures were recorded at the point of visible leakage from the anastomosis. In experiment 2, a small defect was created in 10 gastrojejunostomies. The burst pressures were recorded before and after application of BioGlue to the anastomosis. The data were analyzed using the 2-tailed paired t test.

RESULTS

In experiment 1, the burst pressure was significantly increased in the reinforced gastrojejunostomies, from 27.4 ± 8.4 mm Hg to 59.1 ± 19.2 mm Hg (P <.001). In experiment 2, the defective gastrojejunostomies had an average burst pressure of 1.2 ± 0.8 mm Hg. After application of BioGlue, the burst pressure increased to 42.8 ± 15.9 mm Hg (P <.001).

CONCLUSION

These ex vivo findings suggest that the surgical adhesive BioGlue can reinforce both intact and defective stapled gastrojejunal anastomoses. Additional in vivo study is warranted to determine whether BioGlue can prevent or help seal gastrojejunal leaks.

A simplified technique for intrathoracic stomach repair: laparoscopic fundoplication with Vicryl mesh and BioGlue crural reinforcement

BACKGROUND

Laparoscopic repair of an intrathoracic stomach has been associated with a high recurrence rate. The use of biologic or synthetic mesh to reinforce the crural repair has been shown to reduce recurrence. This study aimed to assess a simplified technique for reinforcing the crural repair using absorbable Vicryl mesh secured with BioGlue during laparoscopic repair of an intrathoracic stomach.

METHODS

The charts of all patients who underwent laparoscopic repair of an intrathoracic stomach from June 2006 to March 2009 using the described technique were retrospectively reviewed. Intrathoracic stomach was defined as more than 50% of the stomach herniated into the chest. Follow-up assessment was routinely performed 1 year or more after surgery and included endoscopy, video esophagram, Bravo 48-h pH monitoring, and a gastroesophageal reflux disease (GERD)-health-related quality-of-life (HRQL) questionnaire.

RESULTS

A total of 35 patients (male:female = 10:25) with a mean age of 70 years (48-89 years) and a mean body mass index (BMI) of 30.4 kg/m(2) (20.4-44.8 kg/m(2)) underwent repair using this technique. The median operating time was 144 min (101-311 min), and the median hospital stay was 2 days (1-21 days). There were three conversions (8.6%) and one intraoperative complication (2.9%). Three patients (8.6%) experienced postoperative complications. No mesh-related complications occurred. Follow-up assessment 1 year or more after surgery was available for 21 of the 25 eligible patients [median follow-up period, 14 months (11-34 months)]. There were two recurrences (9.5%), one of them asymptomatic. The median GERD-HRQL score was 5 (2-28). Nearly all the patients (91.3%) were satisfied with the operation, and 96% would have it again.

CONCLUSION

Vicryl mesh secured with BioGlue is a simple and easy method for reinforcing the crural closure during laparoscopic repair of an intrathoracic stomach. The recurrence rate at 1 year is low and comparable with that of other series using biologic mesh secured with sutures or tacks.

BioGlue and Peri-strips in lung volume reduction surgery: pilot randomised controlled trial

BACKGROUND

Both tissue sealants and buttressing have been advocated to reduce alveolar air leaks from staple lines following Lung Volume Reduction Surgery (LVRS). However, the long term detrimental effects of buttressing material are increasingly apparent. We performed a pilot prospective randomised self controlled trial in patients undergoing LVRS comparing BioGlue and Peri-strips as adjuncts in preventing alveolar air-leaks.

METHODS

A pilot prospective self controlled clinical trial was conducted in patients undergoing LVRS. Each patient was treated with BioGlue on one side and pericardial buttress on the other side as an adjunct to the staple line. The sides were randomised for adjuncts with each patient acting as his own control. Duration of air leak, intercostal drainage and time to chest drain removal were the study end points.

RESULTS

10 patients undergoing the procedure were recruited between December 2005 and October 2007. There were 6 men and the mean age was 59.8 +/- 4.9 years. There was one mortality due to multi-organ failure. The BioGlue treated side had a shorter mean duration of air-leak (3.0 +/- 4.6 versus 6.5 +/- 6.9 days), lesser chest drainage volume (733 +/- 404 ml versus 1001 +/- 861) and shorter time to chest drain removal (9.7 +/- 10.6 versus 11.5 +/- 11.1 days) compared with Peri-strips.

CONCLUSION

This study demonstrates comparable efficacy of BioGlue and Peri-strips, however there is a trend favouring the BioGlue treated side in terms of reduction in air-leak, chest drainage volumes, duration of chest drainage and significant absence of complications. A larger sample size is needed to validate this result.

A simple reproducible method of preventing lobar torsion

Torsion of remaining lobes after pulmonary resection is a potentially serious complication with high reported morbidity and mortality. A range of additional procedures has been described, we have used a simple, effective, quick and easy to reproduce minor procedure to prevents torsion.

WOUND COMPLICATIONS ASSOCIATED WITH THE USE OF BOVINE SERUM ALBUMIN-GLUTARALDEHYDE SURGICAL ADHESIVE IN PEDIATRIC PATIENTS

OBJECTIVE

The use of dural sealants has become common in neurosurgery. Ten patients in whom a bovine albumin-glutaraldehyde combination (BioGlue; Cryolife, Inc., Kennesaw, GA) was implanted have had wound complications. The clinical experience of these patients is presented along with recommendations regarding the use of BioGlue.

METHODS

All clinical information was reviewed for the patients who had wound complications after implantation of BioGlue. Data collected included diagnosis, type of original surgery, clinical presentation of the wound complication, culture results, and management.

RESULTS

BioGlue was implanted in 75 patients during 77 procedures. Ten patients (13%) had wound complications. There were six boys and four girls with an average age of 5.2 years (range, 11 mo-16 yr). Three had undergone spinal procedures for detethering of the spinal cord and seven underwent craniotomies (five infratentorial, two supratentorial). Six patients presented with purulent drainage, two had periorbital cellulites, and two had swelling and fluctuance without drainage. All patients were managed operatively by washout, debridement, and removal of the BioGlue followed by a course of intravenous antibiotics. The average interval between the implantation and the debridement was 12.5 weeks (range, 2.5-28 wk). All patients had purulence around the BioGlue. Positive cultures were obtained in seven patients (Staphylococcus species in six and Streptococcus pneumoniae in one), including five who presented with wound drainage.

CONCLUSION

We have found a strong association between the use of BioGlue and postoperative wound complications in our pediatric neurosurgical practice and, thus, discourage its future use. BioGlue triggers an intense acute pyogenic and chronic granulomatous inflammatory response, which is an ideal environment for bacterial growth. The bacteria may arise from the BioGlue or other foreign bodies or, more likely, from the skin if the inflammation breaches the skin surface.