StayCurrentMD · TEF Presentations (Extended): Aerodigestive & Esophageal Surgery
Follow
Video108 min·Published Dec 2014Older

TEF Presentations (Extended): Aerodigestive & Esophageal Surgery

With Dr. Bob Wood · hosted by Dr. Todd Ponsky · StayCurrentMD
Try
Intelligent Search· scoped to tracheoesophageal fistula · not medical adviceSearch the whole library →

More about tracheoesophageal fistula

same diagnosisDive deeper → Tracheoesophageal Fistula (13 items)

More from Dr. Wood

same expert · first-hand onlyDive deeper → Dr. Bob Wood

More from StayCurrentMD

same institutionDive deeper → StayCurrentMD
What the experts said78 expert statements · 2 host summaries
The bugbee cautery is useful and underutilized among general surgeons for treating recurrent tracheoesophageal fistulas.
OpinionTodd Ponsky
A 70-degree endoscope is a difficult tool to use but useful for tracking down hard-to-find tracheoesophageal fistulas.
Clinical
Routine bronchoscopy is now standard practice for all type C esophageal atresia cases, though this represents a change from earlier training when it was not necessarily performed.
ClinicalDan
General surgeons may underappreciate tracheomalacia or laryngomalacia, making collaboration with ENT colleagues valuable for comprehensive airway assessment.
OpinionTodd Ponsky
Pediatric surgery fellows at this institution complete a one-month attachment with ENT to perform bronchoscopies as part of their training.
Clinical
High tracheoesophageal fistulas are very difficult to find from the esophageal side because they are just below the esophageal inlet where a forward-viewing gastroscope does not deflect well enough to get an en face view.
ClinicalPhil
Going retrograde up the esophagus provides easier maneuvering just below the esophageal inlet for finding high fistulas.
ClinicalPhil
Bronchoesophageal fistulas can be very hard to find because there are so many subsegmental bronchi.
Clinical
During dual scoping for bronchoesophageal fistula, you can shake hands across the fistula if you can track it down, and seeing the other operator's scope is usually a giveaway.
Clinical
Dual scoping (simultaneous bronchoscopy and esophagoscopy) is enormously valuable for complicated TEF patients, providing different information and advantages in visualization.
ClinicalDan
During dual scoping, you can see the light from one scope through the epithelium, inject material that may come through subtle holes, or observe bubbles from air insufflation, making simultaneous visualization quite valuable.
ClinicalPhil
During dual scoping, you can see the light from the other scope through the epithelium, inject material that may come through a hole, or see bubbles from insufflation, making simultaneous scoping quite valuable.
ClinicalPhil
Operators can turn off their light during dual scoping so the other person can see their light and determine if they are in the right region.
Clinical
For combined bronchoscopy and esophagoscopy in small children, a 2.8 mm flexible bronchoscope is typically used alongside an infant gastroscope (5.4 or 6 mm outer diameter).
ClinicalPhil
A 2.8 mm flexible bronchoscope is typically used for combined procedures, and the GI scope for small children is an infant scope (5.4 or 6 mm outer diameter).
ClinicalPhil
An infant gastroscope will fit retrograde through a 16 French gastrostomy tube.
ClinicalPhil
An infant gastroscope will fit retrograde through a 16 French gastrostomy tube, which is why 16 French G-tubes are preferred over 14 French.
ClinicalPhil
A bronchoscope can be used retrograde in the esophagus because it fits through smaller openings.
ClinicalBob Wood
The concept of endoscopic TEF repair is to demucosalize the tract because mucosa is a non-stick surface; you want raw against raw with a tiny bit of fibrin glue to seal it while it scars off.
Clinical
When using fibrin glue for TEF repair, use a very small amount (about 0.1 ml) via a Duplo double-lumen catheter to avoid forming a foreign body.
Clinical
Trichloroacetic acid (TCA) can be used for TEF demucosalization, but it is difficult to control precisely and leaves white tissue everywhere, whereas the bugbee provides more precise control.
ClinicalTodd Ponsky
When using bugbee cautery for TEF repair, place something in the esophagus (such as an endotracheal tube) as a spacer to avoid burning the back of the esophageal wall.
Clinical
A bugbee catheter will go down an EGD scope, allowing cauterization from the esophageal side if the tract angle is favorable.
Clinical
A 3 French bugbee fits through a 2.8 mm flexible bronchoscope with a 1.2 mm suction channel, providing precise control of the tip.
ClinicalBob Wood
When passing a bugbee through a rigid scope, bending the end at a slight angle before insertion allows steering by rotation.
Clinical
One of the problems with endoscopic TEF cauterization is not being aggressive enough; you need to destroy the mucosa, not just give it a fright.
ClinicalBob Wood
With a flexible bronchoscope, you can insufflate through the suction channel and distend the lumen to get a better view and sweep the inside of the lumen during cauterization.
ClinicalBob Wood
Laryngeal clefts are incredibly easy to miss and must be actively looked for and probed, not just visually inspected.
Clinical
Positive pressure testing for TEF involves placing an endotracheal tube with cuff in the esophagus and applying 30 cm H2O pressure of air, then observing for air blowing out of the fistula; the stomach must be suctioned afterward.
Clinical
Endoscopic TEF repair often needs to be performed more than once; the average is approximately 2 procedures, with some requiring 1 and others 3-4 attempts.
Clinical
For proximal fistulas, intubation with a cuffed tube past the hole is preferred so the cuff holds the hole occluded during repair; this is not possible for fistulas on the carina.
Clinical
The success rate for endoscopic TEF closure is running about 80%, not 100%.
Clinical
After 3 or 4 failed endoscopic TEF repair attempts, it is typically time to give up and discuss alternative approaches.
Clinical
When cauterizing a TEF, you should particularly try to get the edges and sides because as they scar in, that will narrow the whole mouth, making re-intervention easier if needed.
Clinical
To reduce airway fire risk during bugbee cautery, insufflated oxygen should be kept at 30% or less.
Clinical
Patients can tolerate a minute or two of lower oxygen saturation during cautery procedures to maintain safe oxygen levels below 30%.
ClinicalBob Wood
Radiance voice gel (used for vocal cord injection) can be injected into the wall beside a TEF to obliterate the potential space and hold raw surfaces together; it only lasts a few weeks.
Clinical
Slide tracheoplasty is a useful technique for big complex TEF holes, using part of the trachea to repair the esophageal defect.
Clinical
Sternal periosteum is an excellent interposition graft material—it is like Kevlar, bulletproof, abundant, and very strong, though almost impossible to suture.
Clinical
In the series of approximately 12 slide tracheoplasties for TEF, there were two failures, both in button battery cases, and both patients were the only button battery cases in the series.
Clinical
Button batteries are extremely dangerous and can cause ongoing tissue damage that extends beyond what is visible and beyond the expected time frame.
ClinicalDan
The institutional protocol for button battery ingestion is to remove them within 2 hours of identification, as it is considered a medical emergency.
GuidelinePhil
The American Society of Pediatric Otolaryngology has a task force working to introduce legislation requiring skull-and-crossbones etching on all button batteries to distinguish them from coins on X-ray.
Guideline
For button battery ingestions, if there was a witnessed ingestion, the patient is asymptomatic, removal occurs within a couple of hours, and the mucosa looks good, the likelihood of doing well is high.
ClinicalPhil
Late deaths from aortoesophageal fistulas have occurred following unwitnessed button battery ingestions that were not terribly prolonged.
ClinicalPhil
For button battery cases, CT angiography to look at the aorta may provide as much information about risk of sudden death as endoscopic evaluation, though sensitivity data is lacking.
OpinionPhil
The style of button battery matters for risk: large round flat 3-volt batteries are by far the most potentially damaging, while smaller fatter batteries pose less risk.
Clinical
The protocol is to remove button batteries from the stomach because if they do not leave and sit in one spot, they create considerable injury, especially in the distal stomach/antrum where scarring or stenosis can occur.
ClinicalPhil
For transtracheal TEF repair, a three-layer closure is performed: esophageal layer with knots in the esophageal lumen, interposition graft (typically sternal periosteum), and tracheal layer with knots in the tracheal lumen to reduce refistulization risk.
Clinical
The primary complication of transtracheal TEF repair is refistulization, whereas slide tracheoplasty complications include dehiscence, which is a much bigger deal.
Clinical
Transtracheal repair is a relatively two-dimensional operation where the surgeon matters less than in three-dimensional operations like slide tracheoplasty.
Opinion
Slide tracheoplasty appears to be a learning-curve, surgeon-dependent operation, unlike many operations where the surgeon does not matter long-term.
Opinion
H-type fistulas are relatively short tracks straight from trachea to esophagus and do not do nearly as well with endoscopic repair compared to longer tracts.
Clinical
Long skinny TEF tracts from proximal to distal are the ideal candidates for endoscopic repair, while short, fat, wide tracts do not tend to do well with endoscopic techniques.
Clinical
When repairing high H-type fistulas from a thoracic approach, there is a temptation to ligate the fistula on the esophageal side, which can leave a large tracheal pouch/diverticulum that causes problems if the patient needs a tracheostomy.
Clinical
Endoscopic suturing in the trachea is remarkably humbling and painful, and the hardest part is tying the knot.
Opinion
Nitinol clips could theoretically be used for endoscopic TEF repair, though they are permanent.
OpinionDan
Metal clips can be used with endoscopic sutures for laryngeal cleft repairs from the esophageal side to hold sutures; the patient swallows the clip when the PDS dissolves.
Clinical
For TEF repair, all that matters is achieving raw-on-raw tissue contact for healing.
ClinicalTodd Ponsky
Thoracoscopic diaphragmatic hernia repairs may have a higher recurrence rate than open repairs, possibly because they do not cause enough raw-on-raw tissue contact.
OpinionTodd Ponsky