StayCurrentMD · Aerodigestive & Esophageal Surgery - The Unsalvageable Esophagus & Cases
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Video101 min·Published Nov 2018Older

Aerodigestive & Esophageal Surgery - The Unsalvageable Esophagus & Cases

With Dr. CCHMC Pediatric Surgery · hosted by Dr. em gootee & Dr. todd ponsky · StayCurrentMD
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What the experts said58 expert statements · 2 host summaries
In long-gap atresia, some surgeons use a Hagar dilator to measure the gap, but this may not reach the true end of the distal pouch. A flexible scope is more reliable for accurate gap measurement.
ClinicalTodd Ponsky
Interventional radiology can perform gap studies using a catheter with contrast injection to confirm the catheter is at the top of the pouch, then apply stretch to measure the gap under tension.
ClinicalDan
In long-gap atresia, if the distal pouch has been tacked to the prevertebral fascia at the initial operation, it will not mobilize adequately for primary repair unless the tack is surgically released.
ClinicalDan
Esophageal replacement options for long-gap atresia include reverse gastric tube, gastric pull-up, colon interposition, and small bowel interposition.
GuidelineDan
For long-gap esophageal atresia, a gap of 2 vertebral bodies or approximately 2 centimeters is considered close enough to attempt primary anastomosis.
GuidelineDan
If primary anastomosis cannot be achieved at initial operation, placing the ends on tension for one week and then re-operating often allows successful closure due to stretch.
ClinicalDan
In experimental porcine models of endoscopic Foker (using olive beads and wire traction), pressure necrosis at the anastomotic site is the suspected cause of death.
ClinicalTodd Ponsky
Intraluminal magnetic anastomosis is being developed as a minimally invasive approach to long-gap atresia, with the goal of reducing pressure necrosis compared to bead-based traction.
ClinicalTodd Ponsky
Segmental colonic interposition (preserving distal native esophagus) reduces the risk of long-term redundancy and tortuosity compared to full-length colon interposition from cervical esophagus to stomach.
ClinicalDan
Long-term complications of full-length colonic interposition include progressive tortuosity and poor drainage, which can be mitigated by using shorter segmental interpositions.
ClinicalDan
Segmental interposition preserves the native gastroesophageal junction, allowing potential future anti-reflux surgery at the normal GE junction rather than at a colonic-gastric anastomosis.
ClinicalDan
Segmental colonic interposition requires two anastomoses (one in chest, one in neck) and a thoracotomy, making it a morbid operation, but it is theoretically 'one and done.'
ClinicalDan
Substernal colonic interposition avoids thoracotomy and is useful when the chest is heavily scarred from prior operations. However, it requires sacrificing the entire native esophagus.
ClinicalDan
Sometimes surgeons try too hard to salvage the native esophagus, and children may do better with esophageal replacement, especially when chronic aspiration from recurrent TEFs or strictures causes severe pulmonary disease.
OpinionDan
When mobilizing a distal esophageal pouch off tension (e.g., from prevertebral fascia), the pouch retracts and becomes much shorter than it appeared pre-operatively.
ClinicalDan
Manubrial resection for high esophageal strictures provides less exposure than expected because the clavicles limit the width of the resection corridor.
ClinicalEm Gootee
Cervical esophageal strictures at the thoracic inlet are difficult to resect via neck approach because the esophagus is fixed substernally and cannot be mobilized adequately for tension-free anastomosis.
ClinicalDan
Contrast esophagrams can underestimate the true diameter of a stricture if the proximal esophagus is dysmotile and does not generate enough pressure to distend the lumen. Balloon dilation under endoscopy provides a more accurate assessment.
ClinicalPhil
Placing endoscopes from above and below during thoracoscopic stricture resection allows identification of the stricture by transillumination ('go to the light').
ClinicalTodd Ponsky
In patients with multiple prior thoracotomies and fused ribs, exposure can still be achieved by 'chipping away' at the fused ribs, though the field is narrow and the lung is at risk of injury from scarring.
ClinicalDan
Magnetic compression anastomosis (magnamosis) has been used successfully for gastrojejunostomy but is unproven in the esophagus. The main limitations are the distance magnets can attract across and the lack of mucosal lining in the resulting anastomosis.
ClinicalTodd Ponsky
Kenalog (steroid) injection after stricture dilation is preferred over mitomycin. Mitomycin at high concentrations (up to 5 mg/mL) causes tissue necrosis and has not shown superior outcomes compared to steroids.
ClinicalEm Gootee
Needle knife incision of esophageal strictures is effective for short, well-defined, non-circumferential scar bands. It should be avoided on the anterior wall in patients with prior TEF due to proximity to the trachea.
ClinicalPhil
For recalcitrant esophageal strictures, weekly dilations (3–4 cycles) prevent fibroblasts from bridging and allow the stricture to scar open rather than closed.
ClinicalEm Gootee
Covered esophageal stents (8 mm diameter) are now available for pediatric use and may be effective for temporizing strictures or leaks. They are partially covered to reduce migration and perforation risk.
ClinicalPhil
Serial bougie dilation (e.g., Maloney or Savary dilators) is less effective than balloon dilation for esophageal strictures. Balloon dilation applies radial force and can crack scar tissue without requiring needle knife incision.
ClinicalTodd Ponsky
In patients with recalcitrant anastomotic strictures and documented reflux, treating reflux with fundoplication may allow the stricture to heal. However, this approach risks making subsequent esophageal mobilization more difficult if replacement is ultimately needed.
ClinicalDan
Medical acid suppression (PPI) reduces gastric acid but does not stop reflux itself. A mechanical barrier (fundoplication) is required to prevent reflux of bile and other irritants.
ClinicalPhil
Feeding via gastrojejunal tube with gastric drainage (GJ/G) is a temporizing measure to reduce reflux into the esophagus while managing a refractory stricture.
ClinicalEm Gootee
Patients born with tracheoesophageal fistula, especially those with esophageal atresia, are at significantly higher risk for eosinophilic esophagitis, a non-acid inflammatory condition that causes strictures if untreated.
EpidemiologicalPhil
Routine esophageal biopsies should be performed during endoscopy in TEF patients to screen for eosinophilic esophagitis, even in the absence of overt symptoms.
GuidelinePhil
Eosinophilic esophagitis in infants is effectively managed with elemental formula, which works in approximately 95% of cases.
ClinicalPhil
Esophageal stents can compress the adjacent trachea, especially in children with tracheomalacia or when the esophagus lies directly posterior to the trachea. Always perform bronchoscopy after stent placement.
ClinicalEm Gootee
On CT scan, if the dilated esophagus lies immediately posterior to the malacic trachea, any esophageal distention (food bolus, stent) will compress the trachea. If the esophagus deviates to the left, tracheal compression is less likely.
ClinicalBob
Chronic esophageal foreign bodies (e.g., coins lodged for weeks) can cause posterior tracheal bulge and present as refractory asthma or bronchiolitis, often diagnosed late because chest X-rays are not routinely obtained in asthma protocols.
ClinicalEm Gootee
Mobilizing the gastroesophageal junction to achieve length for primary esophageal anastomosis effectively creates a hiatal hernia and predisposes to reflux.
ClinicalTodd Ponsky
In a patient with a high cervical stricture and intact distal esophagus, primary resection and reanastomosis is theoretically possible but may be under significant tension and at risk of leak or re-stricture.
ClinicalDan
A combined neck and abdominal approach (two surgeons working simultaneously) significantly reduces operative time for complex esophageal reconstructions, which is important given the prolonged anesthesia these cases require.
ClinicalDan
When performing segmental colonic interposition, the choice of right vs. left colon is based on intraoperative assessment of the marginal artery; the side with better vascularity is selected.
ClinicalDan
When performing colonic interposition to the cervical esophagus, the colon can be brought substernally if the chest is too scarred for thoracotomy, even if a segmental interposition is planned.
ClinicalDan
Proximal esophageal anastomoses in the neck are at higher risk of leak when the native esophagus is scarred, short, and of poor quality. Leaks typically heal with conservative management (drainage, stenting).
ClinicalDan
Colonic interposition that appears appropriately short in the operating room may become redundant postoperatively due to the natural elasticity and lengthening of the colon over time.
ClinicalDan
Covered esophageal stents can temporize anastomotic leaks and allow healing while maintaining luminal patency. Stent removal is typically planned after several weeks.
ClinicalEm Gootee
Redundant colonic interposition can be revised by shortening the conduit at the distal anastomosis, dividing small branches along the colonic wall while preserving the vascular arcade.
ClinicalDan
For a spit fistula to avoid recurrent TEF, the distal esophageal stump must be fully mobilized down to the diaphragm and separated from the trachea, not just divided and dropped.
ClinicalTodd Ponsky
When the proximal esophagus is essentially absent (less than 1 cm), anastomosis can be performed to the hypopharynx by having the surgeon place fingers in the patient's mouth, push down to the base of the hypopharynx, and sew the conduit to the surgeon's fingers from below.
ClinicalDan
In complex esophageal cases, a combined operating room evaluation with rigid bronchoscopy, flexible bronchoscopy, and EGD (often with two scopes simultaneously) provides comprehensive anatomic assessment and is safer than sequential procedures.
ClinicalDan
Contrast studies through the endoscope under fluoroscopy are routinely performed before attempting wire passage or dilation to confirm anatomy and avoid perforation.
ClinicalPhil
Esophageal bypass (leaving native esophagus in situ) is a viable option when resection would create an unreconstructible tracheal defect. A fundoplication is performed to prevent reflux into the residual esophageal pouch.
ClinicalDan
In patients with multiple tracheoesophageal fistulas and a non-continuous esophagus, attempting resection may create an unreconstructible posterior tracheal defect. Esophageal bypass is a safer alternative.
ClinicalDan
Residual esophageal secretions in a bypassed esophageal pouch are minimal and typically drain via a persistent TEF, preventing mucocele formation without requiring esophagectomy.
ClinicalDan
When performing esophageal bypass, leaving a tracheoesophageal fistula open allows native esophageal secretions to drain into the airway, preventing mucocele formation in the residual pouch.
ClinicalBob
Children who have been unable to swallow for years may continue to spit reflexively even after successful esophageal reconstruction. It can take weeks to months for them to relearn swallowing.
ClinicalDan
Patients with bypassed esophagus and colonic interposition can achieve full oral intake and normal quality of life, including eating solid foods like pizza.
ClinicalDan
Tracheal homografts (dead trachea implants) have been performed but are associated with difficult postoperative courses lasting several months.
ClinicalEm Gootee
Tissue-engineered tracheal homografts with pre-epithelialization are under development in multiple centers (London leading) but are not yet ready for routine clinical use.
ClinicalEm Gootee
Long-term surveillance of bypassed esophagus includes periodic CT scans to rule out mucocele and endoscopic evaluation via the persistent TEF if needed.
ClinicalEm Gootee
Complications are nearly inevitable in complex esophageal reconstruction. The goal is not to eliminate complications but to anticipate and manage them effectively through a multidisciplinary team approach.
OpinionEm Gootee
David Vanderzee described a thoracoscopic technique for long-gap atresia: place traction sutures on both ends, externalize them on buttons without tightening, wait 3–4 days, return to OR to break adhesions and re-tension, then perform delayed anastomosis.
Host summaryDan · not cited in answers
Posterior tracheopexy (pexing the trachea to the anterior spine) combined with bovine pericardial patch for tracheal defects is an alternative to esophageal bypass, but pericardial patches can fail and create large tracheal defects.
Host summaryEm Gootee · not cited in answers