StayCurrentMD · Update Course 2013: EA & TEF
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Video38 min·Published Sep 2013Older

Update Course 2013: EA & TEF

hosted by Dr. Bob Gootee · StayCurrentMD
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What the experts said45 expert statements · 5 host summaries
Antenatal detection of esophageal atresia occurs in less than half of cases, identified by small stomach and polyhydramnios
ClinicalBob Gootee
Echocardiogram is obtained preoperatively to rule out congenital heart defects and determine aortic arch sidedness (right vs. left)
Clinical
VACTERL workup includes renal ultrasound, vertebral X-rays, evaluation for imperforate anus, and sometimes assessment for VACTERL association
Clinical
Right-sided aortic arch can be successfully repaired through right thoracotomy without switching to left side, though technically more challenging
ClinicalBob Gootee
Preoperative bronchoscopy helps identify fistula location: mid-tracheal fistula predicts shorter gap, while fistula at carina predicts longer gap
Clinical
Bronchoscopy can detect double fistula, though this is rare
Clinical
Standard open approach uses muscle-sparing right posterolateral thoracotomy with extrapleural dissection to vertebral bodies
Clinical
Azygos vein serves as anatomic landmark for fistula location during open repair
Clinical
Small chest tube is placed in extrapleural space on water seal (not suction) and removed after postoperative contrast study
Clinical
Retrospective study of approximately 100 patients showed no difference in complications between Vicryl and silk suture material
Epidemiological
For thoracoscopic repair with knot pusher technique, PDS must be used rather than Vicryl to avoid sawing through tissue
Clinical
Approximately 75% of EA/TEF patients are candidates for thoracoscopic repair
Epidemiological
Complicated congenital heart disease is a relative contraindication to thoracoscopic repair due to longer operative time and cardiovascular stability requirements
Clinical
EA/TEF repair is a 'one shot operation' where initial repair quality is critical due to significant complications from revision
Opinion
Gap distance is the primary determinant of whether thoracoscopic repair can be completed; conversion to open is appropriate if ends cannot be approximated
Clinical
Baby size under 2 kg makes thoracoscopic repair more difficult due to limited space and difficulty retracting lung
Clinical
Proximal pouch mobilization is the most difficult aspect of thoracoscopic repair
Clinical
Training fellows in thoracoscopic TEF repair is challenging with typical fellow exposure of 4-8 cases over training period
Epidemiological
Thoracoscopic ports should be spaced widely and staggered (not in same line) for optimal ergonomics
Clinical
Patient positioning should be more prone than lateral because esophagus is posterior mediastinal structure
Clinical
High-frequency oscillating ventilator in operating room keeps lung collapsed during thoracoscopic repair, though baby shaking is a disadvantage
Clinical
Poll results show 35% of participants perform thoracoscopic repair while 60% perform open repair
EpidemiologicalBob Gootee
Cathy Barsson at Northwestern developed bovine fetal tissue model for TEF repair training that does not require living tissue
ClinicalBob Gootee
This training model was used to teach 30 senior fellows from US and Canada and will be deployed at APSA and IPEG meetings
ClinicalBob Gootee
Thoracoscopic approach is very gentle for lungs, resulting in easier postoperative management, less pain, and smoother extubation
ClinicalBob Gootee
For thoracoscopic anastomosis, back row stitches are tied intracorporeally while front row knots are tied outside the lumen
ClinicalBob Gootee
Transanastomotic feeding tube passed after back row helps provide volume and guides needle passage for front row sutures
ClinicalBob Gootee
5-0 PDS with C1 needle is preferred suture for thoracoscopic repair; C1 needle has good curve and passes through 5mm trocar without damage
ClinicalBob Gootee
TF needle is also suitable alternative to C1 needle for thoracoscopic anastomosis
ClinicalBob Gootee
First stitch does not need to be tied tight; subsequent stitches are tied down tight once approximation is confirmed
Clinical
Stay sutures can be exteriorized through chest wall with hemostat to help bring gap closer before tying subsequent stitches
ClinicalBob Gootee
Dividing only 3/4 of fistula (rather than complete division) before anastomosis makes repair easier by maintaining traction
ClinicalBob Gootee
Minimal dissection of distal esophagus preserves blood supply and reduces trauma, even in long-gap cases
ClinicalBob Gootee
Long gap is defined as greater than two vertebral bodies distance on contrast study through gastrostomy
ClinicalBob Gootee
Gastrostomy tube placement is first step in long-gap management, allowing gap assessment via contrast injection and wire passage
ClinicalBob Gootee
Interventional radiology can pass wire up distal esophagus and inject contrast to identify GE junction location for gap measurement
ClinicalBob Gootee
160 endoscope can pass through slightly dilated 12 French gastrostomy tube to visualize and push lower esophagus
ClinicalBob Gootee
Cervical esophagostomy commits patient to esophageal replacement or substitution procedure
ClinicalBob Gootee
Modern approach to long-gap atresia favors multiple attempts at primary anastomosis before proceeding to cervical esophagostomy
OpinionBob Gootee
Delayed primary anastomosis approach involves waiting months (up to 3 months) for esophageal growth before attempting repair
Clinical
Esophageal growth occurs spontaneously over time; weekly bougienage does not necessarily promote growth
Opinion
Bolus gastrostomy tube feeds may promote distal esophageal growth in long-gap cases
Clinical
Given lack of good esophageal replacement options, surgeons should try everything possible (including long waiting periods) before proceeding to replacement
Opinion
Even very small distal esophagus may eventually come together with delayed approach, though some cases ultimately require replacement
Clinical
Foker procedure can achieve primary anastomosis but may require fundoplication and strictureplasty, resulting in 'long ride' for patient
Clinical
Recent literature (European Journal of Pediatric Surgery Volume 23) shows little difference in outcomes between open and thoracoscopic repair
Host summaryBob Gootee · not cited in answers
Some recent studies (2008-2010) showed better stricture rates with thoracoscopic approach, though more recent data shows equivalent rates
Host summaryBob Gootee · not cited in answers
Average attending pediatric surgeon performs 1-2 TEF repairs per year according to Maury Ziegler's data
Host summary
Low-cost training models for thoracoscopic TEF repair have been developed, including one from Argentina presented at IPEG Beijing meeting
Host summaryBob Gootee · not cited in answers
Wet clips are fast and reliable method for fistula division during thoracoscopic repair
Host summaryBob Gootee · not cited in answers