StayCurrentMD · Introduction and Panel Discussion: EA & TEF
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Video36 min·Published Dec 2012Older

Introduction and Panel Discussion: EA & TEF

With Dr. Corn & Dr. Bagulo & Dr. Louis Spitz · hosted by Dr. Todd Ponsky · StayCurrentMD
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What the experts said35 expert statements · 11 host summaries
Transpleural vs. retropleural approach makes no difference in modern era with antibiotics; historical preference for retropleural was to reduce mediastinitis risk if leak occurred
ClinicalDoctor Corn
Cameron Haight's first successful EA repair in 1941 used left thoracotomy with rib resection and extrapleural approach due to absence of antibiotics
ClinicalDoctor Corn
Technique for proximal pouch dissection: place Replogle tube in upper pouch, have anesthesiologist push down to visualize tip, place traction stitch through pouch tip and tube (not esophagus itself) to enable lateral traction and visualization of plane between membranous trachea and medial esophageal wall
ClinicalDoctor Corn
When uncertain of plane during proximal dissection, err on side of cutting esophageal muscle rather than risking membranous trachea injury
ClinicalDoctor Corn
Water-soluble contrast study of upper pouch can detect proximal fistula: narrower-than-expected upper pouch suggests proximal fistula (pouch doesn't enlarge in utero when fistula present)
ClinicalDoctor Corn
Proximal fistulas are far more common than realized; many cases called 'pure long-gap EA' are actually cases with missed upper pouch fistula
ClinicalDoctor Corn
Does not routinely perform bronchoscopy unless suspicious; has seen one proximal fistula in 20 years; priority is rapid control of distal fistula before baby decompensates
OpinionSteve
Has seen babies decompensate during bronchoscopy, making urgent fistula control more difficult
ClinicalSteve
During proximal dissection, can inadvertently push upper pouch fistula out of the way with blunt dissection (Q-tip), missing it entirely; fistulas typically sit at cervicothoracic junction
ClinicalMiguel
Has seen at least three patients referred for 'recurrent TEF' where fistula was actually a missed upper pouch fistula from initial repair by experienced surgeons
ClinicalTodd Ponsky
Bronchoscopy assesses vocal cord motility preoperatively (some patients have congenital vocal cord paresis/paralysis) and measures gap even in type C EA; meta-analysis shows >50% of long gaps occur in type C
ClinicalProfessor Bagulo
Incidence of upper pouch fistula in standard type C EA is 1-2%, vs. 13-15% in EA without distal fistula (no gas in stomach); bronchoscopy mandatory in latter group, selective in former
EpidemiologicalLouis Spitz
In type C EA, must ligate distal fistula regardless, so can evaluate upper pouch directly at surgery; preoperative bronchoscopy does not change management
OpinionSteve
Meta-analyses on long-gap EA are problematic because studies use inconsistent definitions; some papers call 2.5cm gaps 'long gap' when most surgeons would not
OpinionTodd Ponsky
Preoperative objective gap measurement would allow standardized assessment and comparison of outcomes across centers
OpinionProfessor Bagulo
Case example: thoracoscopic repair where fistula inserted very high into trachea (3-4cm above carina), causing intraoperative confusion about leaving diverticulum vs. entering membranous trachea; preoperative bronchoscopy would have helped
ClinicalTodd Ponsky
Myth that distal pouch should not be extensively dissected is false; primary goal is minimizing anastomotic tension to prevent leaks
OpinionDoctor Corn
70% of recurrent TEF cases had previous anastomotic leak after initial repair
EpidemiologicalDoctor Corn
Distal pouch should be dissected as far as necessary, even to diaphragmatic hiatus, to achieve tension-free anastomosis
ClinicalDoctor Corn
Robert Gross's 1953 textbook states: 'don't hesitate to dissect as far down on lower segment as needed to get two ends together'
GuidelineDoctor Corn
Historical belief that distal pouch blood supply comes from direct aortic branches is false; extensive dissection causes no significant bleeding
ClinicalLouis Spitz
During distal pouch dissection, no significant bleeding is seen from bluntly dissected vessels
ClinicalDoctor Corn
Vagus nerve and main branches can be preserved during distal dissection; easier to visualize thoracoscopically due to magnification
ClinicalSteve
Concept that EA esophagus was normal, divided, and reconnected to work normally is false; inherent dysmotility exists regardless of surgical technique
OpinionSteve
Patients with standard type C EA and minimal dissection still have dysmotility; kids with perfect repairs and no stricture can present with food impaction due to abnormal peristaltic waves
ClinicalSteve
Surgical outcomes vary widely even with identical technique (complete distal dissection, tension-free anastomosis); esophageal function depends on pre-existing anatomy, not surgical dissection extent
OpinionMiguel
Thoracoscopic magnified view shows no vessels entering distal pouch during extensive dissection
ClinicalSteve
Has never seen distal pouch necrosis from extensive dissection
ClinicalSteve
Primary long-term problems in EA are short esophagus with reflux and stricture formation, not inability to eat (assuming those issues are managed)
ClinicalSteve
Knowledge about esophageal innervation in EA babies is insufficient to categorically mandate nerve preservation
OpinionDoctor Corn
Cannot recall any patient who had esophageal surgery for non-EA reasons showing postoperative dysmotility from dissection
ClinicalDoctor Corn
For past 20 years, performs anastomoses under extreme tension but electively paralyzes and ventilates patients for 5 days; has had no leaks in this group
ClinicalLouis Spitz
Historical technique: stitch between chin and chest to maintain neck flexion and reduce anastomotic tension (no longer used due to appearance)
ClinicalDoctor Corn
During 5-7 day paralysis period, esophagus under tension grows substantially and tension resolves; this is mechanism of benefit, not just protecting static anastomosis
ClinicalJack
Two-thirds of esophageal peristaltic function travels through muscle layer syncytium; fibrous healing at anastomosis interrupts this wave, leaving sporadic contractions that are usually sufficient for esophageal emptying
ClinicalJack
Most surgeons use a muscle-sparing incision for open TEF repair
Host summary
Extrapleural approach provides easier exposure in open repair because single retractor can hold all three lung lobes; transpleural requires separate lobe retraction
Host summaryTodd Ponsky · not cited in answers
Thoracoscopic approach eliminates pleural approach debate because lung collapse provides exposure without retraction
Host summaryTodd Ponsky · not cited in answers
Complete proximal pouch dissection all the way to neck is necessary to discover proximal fistula if present (teaching from Siggy Ein)
Host summaryJack · not cited in answers
Bronchoscopy before every EA repair is important to determine presence of proximal fistula
Host summaryTodd Ponsky · not cited in answers
Incidence of additional upper fistula is 5-8%, meaning 95% of bronchoscopies provide no benefit
Host summarySteve · not cited in answers
Bach showed that shorter upper pouch length correlates with higher likelihood of proximal fistula
Host summarySteve · not cited in answers
Contrast study technique: maximum 1.5cc water-soluble dye, surgeon must be present and perform study under fluoroscopy, immediately suction out dye to prevent aspiration
Host summaryHolger · not cited in answers
Bronchoscopy helpful to know where fistula inserts into trachea (especially high insertions) and for fellow training
Host summaryHolger · not cited in answers
Japanese study performed manometry on proximal and distal pouches pre-repair (via gastrostomy access) in pure EA patients; found normal coordinated peristalsis between pouches that was completely disrupted post-repair
Host summaryJack · not cited in answers
Anastomosis is weakest at 5-7 days post-repair, which is when patients are routinely extubated
Host summaryTodd Ponsky · not cited in answers