Delayed primary anastomosis for esophageal atresia: 18 months' to 11 years' follow-up

Thoracoscopic Stage Internal Traction Repair Reduces Time to Achieve Esophageal Continuity in Long Gap Esophageal Atresia

OBJECTIVE

 Management of long gap esophageal atresia (LGOA) is controversial. This study aims at comparing the management of LGOA between two high-volume centers.

METHODS

 We included patients with LGOA (type A and B) between 2008 and 2022. Demographics, surgical methods, and outcomes were collected and compared.

RESULTS

 The study population involved 28 patients in center A and 24 patients in center B. A surgical approach was thoracoscopic in center A, only for one patient was open for final procedure. In center B, 3 patients were treated only thoracoscopically, 2 converted to open, and 19 as open surgery. In center A primary esophageal anastomosis concerned 1 case, two-staged esophageal lengthening using external traction 1 patient, and 26 were treated with the multistaged internal traction technique. In 24 patients a full anastomosis was achieved: in 23 patients only the internal traction technique was used, while 1 patient required open Collis-Nissen procedure as final management. In center B primary anastomosis was performed in 7 patients, delayed esophageal anastomosis in 8 patients, esophageal lengthening using external traction in 1 case, and 9 infants required esophageal replacement with gastric tube. Analyzed postoperative complications included: early mortality, 2/28 due to accompanied malformations (center A) and 0/24 (center B); anastomotic leakage, 4/26 (center A) treated conservatively-all patients had a contrast study-and 0/24 (center B), 1 case of pleural effusion, but no routine contrast study; recurrent strictures, 13/26 (center A) and 7/15 (center B); and need for fundoplication, 5/26 (center A) and 2/15 (center B). Age at esophageal continuity was as a median of 31 days in center A and 110 days in center B. Median time between initial procedure and esophageal anastomosis was 11 days in center A and 92 days in center B.

CONCLUSION

 Thoracoscopic internal traction technique reduces time to achieve esophageal continuity and the need for esophageal substitution while maintaining a similar early complication rate.

Graft dilatation and Barrett's esophagus in adults after gastric pull-up and jejunal interposition for long-gap esophageal atresia

BACKGROUND

Esophageal replacement (ER) with gastric pull-up (GPU) or jejunal interposition (JI) used to be the standard treatment for long-gap esophageal atresia (LGEA). Changes of the ER grafts on a macro- and microscopic level however, are unknown.

AIM

To evaluate long-term clinical symptoms and anatomical and mucosal changes in adolescents and adults after ER for LGEA.

METHODS

A cohort study was conducted including all LGEA patients ≥ 16 years who had undergone GPU or JI between 1985-2003 at two tertiary referral centers in the Netherlands. Patients underwent clinical assessment, contrast study and endoscopy with biopsy. Data was collected prospectively. Group differences between JI and GPU patients, and associations between different outcome measures were assessed using the Fisher's exact test for bivariate variables and the Mann-Whitney U-test for continuous variables. Differences with a P-value < 0.05 were considered statistically significant.

RESULTS

Nine GPU patients and eleven JI patients were included. Median age at follow-up was 21.5 years and 24.4 years, respectively. Reflux was reported in six GPU patients (67%) vs four JI patients (36%) (P = 0.37). Dysphagia symptoms were reported in 64% of JI patients, compared to 22% of GPU patients (P = 0.09). Contrast studies showed dilatation of the jejunal graft in six patients (55%) and graft lengthening in four of these six patients. Endoscopy revealed columnar-lined esophagus in three GPU patients (33%) and intestinal metaplasia was histologically confirmed in two patients (22%). No association was found between reflux symptoms and macroscopic anomalies or intestinal metaplasia. Three GPU patients (33%) experienced severe feeding problems vs none in the JI group. The median body mass index of JI patients was 20.9 kg/m2 vs 19.5 kg/m2 in GPU patients (P = 0.08).

CONCLUSION

The majority of GPU patients had reflux and intestinal metaplasia in 22%. The majority of JI patients had dysphagia and a dilated graft. Follow-up after ER for LGEA is essential.

Delayed primary repair in 100 infants with isolated long-gap esophageal atresia: A nationwide analysis of children's hospitals

BACKGROUND

This study aimed to evaluate the contemporary surgical management of long-gap esophageal atresia, a rare and challenging problem managed by pediatric general surgeons.

METHODS

A retrospective review of the Pediatric Health Information System database for infants who underwent neonatal gastrostomy, followed by surgical reconstruction for long-gap esophageal atresia (2014-2021). Patients with birthweight less than 1.5 kg and those who received neonatal cardiac surgery were excluded. Outcomes were analyzed, including the need for further procedures, length of stay, and mortality.

RESULTS

Of 1,346 infants who underwent repair across 47 major children's hospitals, 100 (7%) met the inclusion criteria for long-gap esophageal atresia. Cardiac anomalies were identified in 43% of patients. The median age at repair was 87 days (interquartile range, 62-133). Ten percent of patients had a planned or unplanned reoperation ≤30 days after index surgery, and 4% underwent reoperation at >30 days. The median time to reoperation was 9 days (interquartile range, 7-60). Mortality during index admission was 5%, and the median hospital length of stay was 143 days (interquartile range, 101-192). Length of stay was significantly longer in patients with cardiac anomalies (cardiac: 179 days, non-cardiac: 125 days; P < .001), and 52% of patients required at least 1 postoperative dilation. The median time to the first dilation was 70 days (interquartile range, 42-173).

CONCLUSION

This large multicenter study highlights the challenges of infants with long-gap esophageal atresia but suggests a high rate of successful delayed primary reconstruction. Hospitalizations are prolonged, and anastomotic stricture rates remain high. These data are useful for pediatric surgeons in counseling families on surgical repair strategy, timing, and postoperative outcomes.

Isoperistaltic gastric tube: a versatile, length-gaining option for esophageal replacement in children and adolescents

Several substitutes, including gastric transposition, colonic interposition, reverse gastric tube (RGT), etc., have been described for esophageal replacement in children and adolescents. However, the search for the ideal esophageal substitute continues due to adverse events associated with these procedures. This report presents our technique for creating an isoperistaltic gastric tube (IGT). We believe that the IGT is a versatile option for esophageal replacement as it is never length-limiting, and additional length can be gained by making minor adjustments.

Delayed primary anastomosis for repair of long-gap esophageal atresia: technique revisited

The operative management of patients born with long-gap esophageal atresia (LGEA) remains a major challenge for most pediatric surgeons, due to the rarity and complex nature of this malformation. In LGEA, the distance between the proximal and distal esophageal end is too wide, making a primary anastomosis often impossible. Still, every effort should be made to preserve the native esophagus as no other conduit can replace its function in transporting food from the oral cavity to the stomach satisfactorily. In 1981, Puri et al. observed that in newborns with LGEA spontaneous growth and hypertrophy of the two segments occur at a rate faster than overall somatic growth in the absence of any form of mechanical stretching, traction or bouginage. They further noted that maximal natural growth arises in the first 8-12 weeks of life, stimulated by the swallowing reflex and reflux of gastric contents into the lower esophageal pouch. Since then, creation of an initial gastrostomy and continuous suction of the upper esophageal pouch followed by delayed primary anastomosis at approximately 3 months of age has been widely accepted as the preferred treatment option in most LGEA cases, generally providing good functional results. The current article offers a comprehensive update on the various aspects and challenges of this technique including initial preoperative management and subsequent gap assessment, while also discussing potential postoperative complications and long-term outcome.

Esophageal elongation by bougienage and delayed primary thoracoscopic anastomosis for pure esophageal atresia without tracheoesophageal fistula

PURPOSE

We aim to share our experience of esophageal elongation by bougienage and delayed primary thoracoscopic anastomosis for pure esophageal atresia (EA) without tracheoesophageal fistula (TEF).

METHODS

Fifteen patients with pure EA treated with delayed primary thoracoscopic anastomosis combined with or without esophageal elongation by bougienage were retrospectively analyzed.

RESULTS

Four patients were managed without bougienage, and their surgical repair was performed thoracoscopically after natural esophageal growth. Among the remaining 11 patients, the average tension-free distance before elongation was 5 (4.5-6) vertebral bodies, and the mean age at the start and end of the bougienage period was 123 (63-280) days and 173 (106-350) days, respectively, with an average duration of 50 (29-82) days. The average age at the definitive operation in this series was 184 (107-385) days, with a mean operative duration of 186 (95-300) min. Neither anastomotic leakage nor TEF occurred, and oral feeding was partially or completely established in 13 patients during hospitalization. Among all patients, one was lost to follow-up, and others were followed up with an average duration of 47.7 (9.8-97.1) months. All patients had different degrees of anastomosis stricture, and 8 patients had gastroesophageal reflux. Oral feeding was completely established in 12 patients; however, tube feeding was required in 2 patients.

CONCLUSIONS

The management of pure EA is complicated and inconclusive. Esophageal elongation by bougienage and delayed primary thoracoscopic anastomosis for long-gap pure EA without TEF is safe and effective.

Pediatric esophageal stenoses: Challenges and new surgical device promoting tension-free esophageal anastomosis

Esophageal stenoses of childhood have a broad spectrum of underlying causes. Their treatment is usually minimally invasive by endoscopic means, but sometimes surgery is necessary in refractory cases. Techniques employed in the surgical treatment of esophageal strictures include resection of the stenotic esophageal segment or esophageal substitution procedures. Esophageal anastomosis has always been a challenge in pediatric surgery. Anastomosis complications are linked to anatomical, biological and technical aspects. Mechanical tension between esophageal ends is an important cause of complications including anastomotic leaks or dehiscence. Eleven cases of esophageal stenoses, surgically treated in the Pediatric Surgery Department of Emergency Clinical Hospital for Children 'Marie S. Curie' by a single team in 5 years, were included in the present study. The results showed that, the main causes of esophageal stenosis were represented by corrosive esophageal injury in five cases, complications of esophageal atresia repair in three cases, congenital esophageal stenosis in two cases and chemotherapy-induced esophageal necrosis in acute lymphoblastic leukemia treatment in one case. The authors also designed and presented a device facilitating esophageal anastomosis under tension. Its principle involved temporary absorption of tension at secure points of the two esophageal pouches and reallocating it in equal amounts following anastomosis while decreasing any stretch-related tissue trauma. In conclusion, this auxiliary tool is beneficial for esophageal anastomosis; however, the standard steps of the esophageal anastomosis procedure should still be considered when necessary.

Favorable Outcome of Electively Delayed Elongation Procedure in Long-Gap Esophageal Atresia

The ideal approach to long gap esophageal atresia is still controversial. On one hand, preserving a patient's native esophagus may require several steps and can be fraught with complications. On the other hand, most replacement procedures are irreversible and disrupt gastrointestinal physiology. The purpose of this study was to evaluate the short- and medium-term outcome of electively delayed esophageal elongation procedures before esophageal reconstruction in patients with long-gap esophageal atresia. Since the neonatal esophagus grows over-proportionally and can increase its wall thickness in the first few months of life, we hypothesized that postponing the elongation steps until 3 months of age would lead to a lower complication rate. We thus retrospectively recorded complications such as mediastinitis, anastomotic leakage, stricture formation, or gastroesophageal reflux requiring surgery, and compared it to reported outcomes. In our treatment protocol, patients born with long-gap esophageal atresia underwent gastrostomy placement and were sham fed until 3 months of age. We then assessed the gap between the esophageal ends and started serial elongation procedures. We only proceeded to the reconstruction of the esophagus when its length allowed a tension-free anastomosis. From April 2013 to April 2019, we treated 13 Patients with long-gap esophageal atresia. Nine patients without prior surgical procedures underwent Foker procedures. Four patients arrived with a pre-existing cervical esophagostomy and thus underwent Kimura's procedure, two of them with a concomitant Foker elongation of the lower pouch. Esophageal reconstruction was feasible in all patients, while none of them developed mediastinitis at any point in their treatment. We managed the only anastomotic leak conservatively. Almost half of the patients did not require any further intervention following reconstruction, while three patients required multiple (≥5) anastomotic dilatations. All but one patient achieved full oral nutrition. Only one child required a fundoplication to manage gastroesophageal reflux symptoms. Electively delayed esophageal elongation procedures in patients with long-gap esophageal atresia allowed preservation of the native esophagus in all patients. The approach had low peri-procedural morbidity, and patients enjoy favorable functional outcomes. Therefore, we suggest considering this method in the management of patients with long-gap esophageal atresia.

A Novel Technique for Prevention of Gastroesophageal Reflux in Staged Repair of Long Gap Esophageal Atresia with Tracheoesophageal Fistula

Aim:

The objective of the study is to report a novel technique of preventing gastroesophageal reflux and air leak from fistula to stomach in patients of tracheoesophageal fistula with long gap atresia, to buy time for the staged procedure.

Methods:

Seven patients of tracheoesophageal fistula with upper pouch of esophagus at 2^nd thoracic vertebra were selected for the staged procedure. Weight ranged from 1.7 to 1.8 kg. During the 1^st stage surgery for gastrostomy, midline strip of linea alba attached to xiphoid process was harvested and slinged around the gastroesophageal junction, along with right cervical esophagostomy. After radio-nuclear scan, the demonstration of abolition of gastroesophageal reflux, gastrostomy feed was started. The 2^nd stage surgery performed after 6 weeks, included mobilization of esophagostomy, release of sling, thoracotomy, and tension-free esophageal anastomosis. Outcome measurement includes (1) prevention of air leak from esophagus into the stomach, (2) abolition of gastroesophageal reflux, (3) ability to start gastrostomy feeds, and (4) reversal of occlusion after release of the sling.

Results:

The placement of linea alba sling and elevation of gastroesophageal junction, abolished air leak from fistula to stomach in all. Radio nuclear scan demonstrated abolition of gastroesophageal reflux in 6 with weight gain after gastrostomy feeding. One patient expired due to sepsis. One patient underwent final repair with reversal of occlusion with release of the sling.

Conclusion:

Using a sling of the linea alba around the cardioesophageal junction, prevents gastroesophageal reflux and escape of air from esophagus into the stomach, gives time to improve the respiratory and nutritional status of the patient, for a subsequent safer delayed primary anastomosis.

Bodyweight, not age, determines oesophageal length and breaking strength in rats

BACKGROUND/PURPOSE

Delayed primary repair is still the method of choice in the management of long-gap oesophageal atresia in many centres, but the timing of anastomoses varies. Some assume the infant's bodyweight to be an important factor, whereas others prefer age. We therefore aimed to clarify whether age or bodyweight determined oesophageal length in a rodent model.

METHODS

We explanted the oesophagi of 20 Sprague-Dawley rats, aged 15 to 444 days (n = two per time point), measured bodyweight, oesophageal length, weight, and linear breaking strength to measure tissue resilience. Univariate and multivariate regression analyses were conducted to determine the influence of age and bodyweight on oesophageal length and linear breaking strength.

RESULTS

All parameters were highly correlated (R > 0.8), except for age and linear breaking strength (R = 0.65). Both age and bodyweight were univariate significant predictors of oesophageal length, weight, and linear breaking strength (p < 0.0001). Multivariate analyses showed bodyweight to be a significant predictor of oesophageal length (p < 0.0001), whereas age was not (p = 0.18) [adjusted R² = 0.9031]. This was also true for linear breaking strength (p = 0.0007 and p = 0.97, respectively) [adjusted R² = 0.71]. Moreover, the influence of age was negligible, as the adjusted R² and the regression coefficient of bodyweight and its 95% confidence interval were almost identical between univariate und multinomial regressions.

CONCLUSIONS

Only weight determines oesophageal length and tissue resilience in rodents, whereas age is irrelevant. If a similar relationship exists in humans, it may facilitate choosing the optimum time point for delayed primary anastomosis.

LEVEL OF EVIDENCE

IV - Experimental Paper.

Comparison of outcomes according to the operation for type A esophageal atresia

Purpose

The purpose was to evaluate outcomes according to different operative strategies of type A esophageal atresia (EA).

Methods

All patients who underwent surgery for type A EA between 1980 and 2011 were included. Patients were divided into 2 groups: E-E group included patients who received esophageal end-to-end anastomosis, whereas E-G group included patients who received esophago-gastric tube anastomosis.

Results

Twenty-two patients were included. The median gestational age was 37.5 weeks. The median birth weight was 2.5 kg. Twenty-one patients underwent gastrostomy as initial procedures, and one patient underwent primary esophageal end-to-end anastomosis. The median gap between both esophageal ends was six vertebral distance (VD). Seven patients underwent primary anastomosis of the esophagus, and 14 patients underwent gastric replacement. Three patients (13.6%) had anastomotic leakage and 10 patients (45.5%) had anastomotic stenosis. Most of the patients (90.9%) had gastroesophageal reflux, but only two patients required antireflux surgery. The median VD was significantly shorter in E-E group than in E-G group (3 VD vs. 6 VD). Stenosis was significantly more often in E-E group, but there was no significant difference in leakage and reflux symptoms.

Conclusion

The treatment for type A EA can include E-E anastomosis or E-G anastomosis, depending on the length of the end-to-end interval after performing gastrostomy. Appropriate tension and blood flow in the anastomosis site are essential for preventing postoperative stenosis and leakage, and esophageal replacement with gastric tube is believed to be feasible and safe in cases where excessive tension is present.

Type-A long-gap esophageal atresia treated by thoracoscopic esophagoesophagostomy after sequential extrathoracic esophageal elongation (Kimura's technique)

INTRODUCTION

We report four cases of long-gap esophageal atresia (LGEA) treated with thoracoscopic esophagoesophagostomy (TEE) after sequential extrathoracic esophageal elongation (SEEE: Kimura's technique).

METHODS

All initially had gastrostomy, then SEEE. The proximal end of the esophagus was introduced into the apex of the thorax under direct vision during TEE.

RESULTS

Mean birth weight was 1.9 kg. Mean gestational age was 35.0 weeks (range 30-39); mean age at initial esophagostomy was 43.2 days (range 15-110); SEEE was performed for a mean of 3 times (range 2-4) at mean intervals of 5.3 months (range 2-10), with the upper esophageal segment lengthened by a mean of 2.1 cm each time (range 1.1-3.5). Mean age and weight at TEE were 22.3 months and 9.8 kg, respectively. Gap was initially 4.5 vertebrae (range 4-5). Mean operating time was 9.6 h. TEE was successful in 3; 1 required thoracotomy, then re-anastomosis after 11 months of anastomosis leakage; 2 cases with post-TEE anastomosis leakage were treated conservatively. Postoperatively, all cases required fundoplication and esophageal dilatation (2, 3, 5, 8 times, respectively). At mean follow-up of 3.6 years, 2 eat normally and 2 eat minced food.

CONCLUSIONS

TEE after SEEE appears to be a feasible option for treating LGEA.

Delayed primary anastomosis for management of long-gap esophageal atresia: a meta-analysis of complications and long-term outcome

PURPOSE

Management of newborns with long-gap esophageal atresia (LGEA) remains a challenge for pediatric surgeons. Since spontaneous growth of the esophageal segments occurs without mechanical stretching, initial gastrostomy followed by delayed primary anastomosis (DPA) comprises treatment in most LGEA patients. This meta-analysis aimed to investigate the complications and long-term outcome in patients with LGEA managed by DPA.

METHODS

A systematic literature search was conducted for relevant articles published between 1981 and 2011, and a meta-analysis of complications and long-term outcome was performed.

RESULTS

Forty-four articles presented data on 451 newborns with LGEA managed by DPA. Most common variants were pure LGEA (194/451) and LGEA with tracheoesophageal fistula (257/451). Initial gap lengths ranged from 1.9 to 7.0 cm. At the time of DPA, performed at a mean of 11.9 weeks (range 0.5-54.0), the gap had decreased to 0.5-3.0 cm. Mean follow-up was 5.5 years (range 0.5-27.0). Frequent complications were anastomotic leaks/strictures, gastroesophageal reflux (GER), esophagitis and dysphagia. Relative risk for strictures was significantly higher in patients who previously had a leak (p < 0.0001) or GER (p < 0.0001). Patients with GER also had a significantly higher risk for esophagitis (p = 0.0283) and dysphagia (p = 0.0174). The majority of patients could eat without swallowing difficulties at follow-up.

CONCLUSION

DPA provides good long-term functional results. However, the high incidence of GER and associated strictures requires early intervention to prevent feeding problems.

Type A esophageal atresia: a critical review of management strategies at a single center

PURPOSE

The purpose of was to study the short- and long-term outcomes in the management of isolated esophageal atresia with different operative strategies.

METHODS

All patients undergoing type A atresia repair over a 15-year period were included. Demographic data, birth weight, gestational age, incidence of associated anomalies, management, and long-term outcomes were studied.

RESULTS

Fifteen patients with type A atresia (9 male) were treated in the study period. The mean gestational age was 35.5 weeks (range, 27-39 weeks), and the mean birth weight was 2179 g (range, 670-3520 g). Eight babies had associated anomalies. Thirteen patients underwent gastrostomy as the initial procedure, and 2 underwent the Foker procedure. In the delayed management group, 9 patients underwent primary anastomosis, with 2 patients needing proximal pouch myotomy. Two patients underwent a Collis gastroplasty. Two patients underwent a cervical esophagostomy and a gastric tube replacement at 4 months and 1 year, respectively. Eight patients (60%) in this group had anastomotic leaks. All patients are currently on prokinetics and proton pump inhibitors. Seven required antireflux surgery. The median length of hospital admission was 4 months (range, 3-19 months). The native esophagus was preserved in 13 (85%) of 15 babies. All patients are alive, and 14 of 15 are capable of feeding orally.

CONCLUSIONS

Type A esophageal atresia continues to be associated with significant morbidity despite advances in surgical technique and intensive care.

Extrathoracic esophageal elongation (Kimura's technique): a feasible option for the treatment of patients with complex esophageal atresia

AIM

The aim of this study was to evaluate the outcome of all patients who underwent an extrathoracic esophageal elongation (EEE) (Kimura's technique) and determine its role, among other surgical options, for the treatment of patients with complex esophageal atresia (EA) who have a previously created esophagostomy.

METHODS

Between March 1997 and September 2008, we performed 20 EEEs. Twelve patients were males and 8 were females. The diagnoses were type C EA (n = 12), type A EA (n = 5), type B EA (n = 2), and type D EA (n = 1). Mean age at the initiation of the EEE was 10 months (range, 3-25 months).

RESULTS

At the time of this report, 15 of the 20 patients have finished the treatment, 4 patients are still in the process of elongation, and one patient (premature, with a birth weight of 685 g) died before the final esophageal reconstruction. Of the 15 patients who finished the treatment, 12 (80%) completed it satisfactorily and 3 (20%) had to be prematurely interrupted. (In 2 patients, despite multiple attempts, the upper pouch could not be adequately elongated, and in one patient, an early perforation of the upper pouch precluded further elongations.) Of the 12 patients who completed the treatment satisfactorily, 10 (83%) are asymptomatic and exclusively on oral alimentation, whereas 2 (17%) have a pseudodiverticulum and esophageal dysmotility (requiring supplemental alimentation through a gastrostomy). Five of the 12 patients have gastroesophageal reflux (2 required a Nissen fundoplication and 3 are being treated medically).

CONCLUSIONS

We believe that the EEE is a useful surgical option for a selected group of patients with complex long-gap EA who required a primary esophagostomy and also for patients with any type of EA who developed severe complications after a primary repair and required a secondary esophagostomy. With this technique, we avoided an esophageal replacement in 80% of cases, and given that the EEE does not invalidate a later esophageal replacement, we believe that the EEE is a feasible initial option for these patients.

Long-gap esophageal atresia treated by growth induction: the biological potential and early follow-up results

This study had two purposes. The first was to determine whether the growth procedure would allow true primary repairs of the most severe end of the esophageal atresia (EA) spectrum with the longest gaps (LG) and most rudimentary lower esophageal segments. The second goal was to provide the first short- to mid-term (3-12 years) follow-up data on the esophageal function and quality of life (QOL) data on the patients in this series. From our series of 60 LG-EA patients who underwent a growth procedure, 42 had the true primary esophageal repair completed 3 years ago. Among these, 18 had gaps over 6 cm, and for 6, only a rudimentary lower esophagus existed well below the diaphragm. No patient was turned down and all had primary repairs. These results suggest that even the most rudimentary segment has the potential to achieve normal size and that the full EA spectrum can have a primary repair. Our follow-up studies indicated that the esophageal function of these previously grown segments was very good. All contacted (40) were eating normally with only 3 receiving supplemental g-tube feeds because of other significant defects. We have actively treated significant reflux and 41/42 had fundoplication. By endoscopy (N = 15) no esophagitis was visible, but on biopsy, mild inflammation was found in 3. No conditions were found which would suggest that there would be a late deterioration or adverse consequences would arise. Based on these ongoing evaluations, the outlook seems very favorable for a good long-term QOL.

Gastric transposition in children

PURPOSE

To analyze the outcome in 192 children (116 males, 76 females) undergoing transposition since 1981.

METHODS

The most common indications for esophageal replacement included failed repair of different varieties of esophageal atresia (138), caustic injury (29), and peptic strictures (9). A total of 81% of the patients were referred from other hospitals (50% from other countries). Age at operation ranged from 7 days to 17 years. The gastric transposition was performed by using blunt mediastinal dissection in 98 patients, with an additional 90 patients undergoing lateral thoracotomy. The retrosternal position was used in 4 patients.

RESULTS

There were no graft failures, including those who had previously had failed gastric tube or Scharli operations. Anastomotic leaks occurred in 12% (all but one resolved spontaneously). Anastomotic stricture, requiring dilation developed in 20%. Half of these patients had previously sustained caustic esophageal injury. There were 9 deaths in the group (4.6%). One death occurred intraoperatively, 5 in the early postoperative period, and there were 3 late deaths. In over 90% of our patients, the outcome was considered good to excellent in terms of absence of swallowing difficulties or other gastrointestinal symptoms. Many children preferred to eat small frequent meals. Poor outcome was particularly associated with multiple previous attempts at esophageal salvage. There was no deterioration in the function of the gastric transposition in those patients followed for more than 10 years.

CONCLUSIONS

Gastric transposition for esophageal substitution is an acceptable procedure. It is attended by 4.6% mortality and a 12% leak rate. A total of 20% of the patients needed anastomotic dilation for stricture. In the long term, good function has been maintained. Gastric transposition compares favorably with other methods of esophageal replacement.

Jejunum for bridging long-gap esophageal atresia

OBJECTIVE

Exploring pros and cons of bridging long-gap esophageal atresia with an orthotopic jejunal pedicle graft. Retrospective series of 19 patients.

METHODS

From 1988 through 2005, 19 patients with long-gap esophageal atresia received a jejunal graft. Median age at reconstruction was 76 days. The technique involved an initial right-sided thoracotomy or thoracoscopy to confirm the diagnosis of long-gap esophageal atresia. Through a median laparotomy, a small pediculated jejunal graft was prepared and placed transmesocolically and transhiatally in an orthotopic position in the right chest.

RESULTS

All patients survived and none of the grafts were lost. Four intrathoracic and one intraabdominal leak occurred. One intrathoracic and one intraabdominal leak were surgically repaired. One early distal stenosis was reoperated as well. There were always signs of distal functional subobstruction, responding to dilation in all but one patient. Gastroesophageal reflux was not a problem except for one patient whose distal esophagus was eventually resected because of ongoing distal obstruction with dilation of the graft. Except for one patient, all patients are eating normally and most of them grow well. Respiratory problems were rare. Grafts did not become redundant and retained peristaltic activity.

CONCLUSION

Orthotopic jejunal pedicle graft reconstruction of the esophagus in children is a demanding operation with considerably early morbidity but good long-term results. It should be part of the pediatric surgical armamentarium for reconstruction of the esophagus.

Current status of prenatal diagnosis, operative management and outcome of esophageal atresia/tracheo-esophageal fistula

Ultrasonographic features suggestive of esophageal atresia with or without tracheo-esophageal fistula (EA/TEF) are only in a small minority of fetuses with EA/TEF (<10%) identifiable on prenatal scans.The prenatal diagnosis of EA/TEF relies in principle, on two nonspecific signs: polyhydramnios and absent or small stomach bubble. Polyhydramnios is associated with a wide range of fetal abnormalities, but most commonly it pursues a benign course. Similarly the sonographic absence of a stomach bubble may point to a variety of fetal anomalies.The combination of polyhydramnios and absent stomach bubble in two small series offers a modest positive predictive value of 44 and 56% respectively. Prenatal scanning for EA/TEF identifies a larger proportion of fetuses with Edwards syndrome; there is also a higher proportion of isolated EA in comparison to postnatal studies.Current ultrasound technology does not allow for a definite diagnosis of EA/TEF and therefore, counseling of parents should be guarded.Postnatal diagnosis of EA is confirmed by the failure to pass a firm nasogastric tube into the stomach; on chest X-ray, the tube is seen curling in the upper esophageal pouch. Corrective surgery for EA/TEF is well established and survival rates of over 90% can be expected.

Long gap esophageal atresia: an Australian experience

BACKGROUND

The diagnosis of long gap esophageal atresia (LGEA) may preclude immediate primary anastomosis. We reviewed our experience with this entity for a period of 10 years.

METHODS

A retrospective review was undertaken of the medical records of all patients managed for esophageal atresia (EA)/tracheoesophageal fistula (TEF) during the period from 1991 to 2001 at the Children's Hospital at Westmead, Sydney, Australia. Esophageal atresia was defined as long gap when primary repair was considered technically impossible by the surgeon. Also, a questionnaire was sent to all the general pediatric surgeons in Australia to explore their attitude toward LGEA management.

RESULTS

One hundred three patients with EA were managed for that period, 17 (16%) of them were defined as LGEA, with mean gap of 5 cm (SD, 1cm). Eight patients (47%) had TEF. Sixteen patients had gastrostomy tube (GT) insertion at a mean age of 4 days. Six patients had esophagostomy at a mean age of 27 days. Thirteen patients had EA repair at a mean age of 146 days. Four patients died before repair and 2 after repair secondary to associated anomalies. Fifty percent of Australian Pediatric Surgeons (APS) responded to the questionnaire. Forty percent defined LGEA as a gap more than 3 to 4 vertebral bodies, whereas 24% considered the absence of TEF as an indication of LGEA. Fifty-six percent of APS will measure the gap on preoperative chest x-rays, and 80% will assess the gap at thoracotomy for ligation of TEF. Ninety-two will measure the gap by inserting a bougie into the upper pouch and into the lower esophagus via the GT. If LGEA was diagnosed, all APS will perform GT with delayed repair. Seventy-two percent of APS will attempt delayed primary repair within 3 to 6 months of age. Seventy-six percent will perform hiatal dissection, and 48% will use upper pouch myotomies. Forty-eight percent will perform gastric pull up, and 32% will use gastric tube for esophageal replacement.

CONCLUSIONS

Long gap esophageal atresia represents a surgical challenge. Mortality rate is high secondary to associated anomalies. There is no consensus among APS regarding the definition of LGEA. In general, the consensus of APS would be that the preservation of the patient's own esophagus should be attempted before considering the use of an esophageal replacement.

Long-term results of delayed primary anastomosis for pure oesophageal atresia: a 27-year follow up

The management of a newborn with pure oesophageal atresia continues to be challenging. We started treating babies with pure oesophageal atresia by delayed primary anastomosis in 1977. The purpose of this study was to review the long-term outcome in infants with pure oesophageal atresia (EA) treated by delayed primary anastomosis with special emphasis on gastroesophageal reflux (GOR) related morbidity. The medical charts of all patients treated by delayed primary anastomosis between 1977 and 2004 were retrospectively reviewed. All survivors were followed up with completion of a questionnaire and personal/phone interviews. There were 26 patients in total admitted during the 27-year study period with the diagnosis of pure oesophageal atresia. Three died prior to surgery due to associated anomalies; two had almost no distal oesophageal segment and underwent oesophageal replacement surgery. The remaining 21 children were treated with delayed primary anastomosis and made up our study group. There were four deaths (19%) in this group, and all were prior to 1980. The median gestational age was 35.5 weeks and the median birth weight was 2.6 kg; median initial gap was 3.7 cm and median preoperative gap was 1.5 cm; median age at operation was 80 days and the median hospital stay was 5.5 months. The median follow-up period was 13.5 years. Fourteen children (66%) developed symptomatic gastroesophageal reflux and nine of these needed fundoplication (43%). Sixteen children developed strictures at the anastomotic site; ten responded to repeated dilatations while six needed resection and reanastomosis. At the time of this study, 15 out of the 17 survivors (88%) were on normal diet with no respiratory problems and 2 (12%) were dependent on gastrostomy feeds. Our long-term follow-up data shows that the delayed primary anastomosis provides excellent functional results in patients born with pure oesophageal atresia. The high incidence of gastroesophageal reflux and associated morbidity requires early intervention to prevent ongoing feeding problems due to oesophagitis and stricture formation.

MCRA of an anastomotic stenosis after esophagoesophagostomy for long gap esophageal atresia: a case report

A 25-month-old boy with long gap esophageal atresia developed severe esophageal stenosis refractory to balloon dilatations after definitive esophagoesophagostomy. At 33 months of age, the patient had a magnetic compression revision anastomosis, in which a pair of 2 cylindrical Samarium-cobalt rare-earth 320 mT (3200 G) magnets, 15 x 5 mm (diameter x thickness), were placed in the esophagus to compress the scar tissue of the anastomosis. The magnets were retrieved 34 days after the magnetic compression revision anastomosis procedure. For 3 months, the patient subsequently had balloon dilatations to prevent restenosis, and he has been able to eat normally by mouth without further balloon dilatations since then.

Jejunal pedicle grafts for reconstruction of the esophagus in children

OBJECTIVE

Reconstruction of the esophagus in children remains a challenge. Although jejunal grafts retain peristaltic activity, large series with long-term follow up are rare. We like to present our experience in a series of 24 children.

METHODS

In the period 1988 through 2005, 24 children received an orthotopic jejunal pedicle graft reconstruction of the esophagus. Nineteen had esophageal atresia (18 had no distal fistula; all but 1 had a jejunal graft as a primary procedure), 3 had an extensive caustic stricture, and 2 had a peptic stricture. All strictures had been dilated many times, and peptic strictures had been treated with antireflux surgery as well. Median age at reconstruction was 76 days in the esophageal atresia group. The technique involves a right-sided thoracotomy with preparation of the esophageal ends or resection of the diseased esophagus. At laparotomy, a small pediculated jejunal graft is prepared and placed transhiatally in an orthotopic position in the right chest.

RESULTS

All patients survived, and none of the grafts were lost. There were 5 intrathoracic leaks, 4 in the esophageal atresia group and 1 in peptic stricture group, requiring reoperation in 1. In the esophageal atresia group, there was 1 early distal stenosis requiring reoperation. In patients in which the distal esophagus was preserved (esophageal atresia and caustic stricture group), there were always signs of distal functional subobstruction, responding to dilatation in all but 1 patient. Gastroesophageal reflux was not a problem except for 1 patient with esophageal atresia, in whom the distal esophagus was resected because of ongoing distal obstruction with dilatation of the graft. Most patients eat and grow well, and respiratory problems were rare.

CONCLUSION

Orthotopic jejunal pedicle graft reconstruction of the esophagus in children is a demanding operation with considerably morbidity but good long-term results.

Oesophageal atresia and tracheo-oesophageal fistula

Oesophageal atresia-tracheo-oesophageal fistula has featured in paediatric surgery since its beginnings. The first successful primary repair was in 1941. With overall survival now exceeding 90% in dedicated centres, the emphasis has changed to reducing morbidity and achieving improvements in the quality of life. An overview of current and emerging strategies in managing patients with this condition is presented. Advances in developmental biology and molecular genetics reflecting improved understanding of the pathogenesis are highlighted.

Esophageal atresia with tracheoesophageal fistula: ten years of experience in an institute

BACKGROUND

Esophageal atresia (EA), tracheoesophageal fistula (TEF), or both is a complicated problem. The purpose of this study was to evaluate the outcomes and postoperative complications in patients with EA/TEF who were admitted to our hospital.

METHODS

In total, 15 patients were enrolled from 1994 to 2003, including 8 males and 7 females. Patient demographics, associated anomalies, and outcomes were analyzed.

RESULTS

The most common variant was EA with a distal TEF (type C), which occurred in 12 patients (80%). The latter had associated congenital anomalies, and cardiac anomalies were the most frequent, occurring in 8 patients (53.3%). Of the 6 cases who had life-threatening anomalies, 4 (66.7%) died, and of the 9 cases who had no life-threatening-anomalies, 2 (22.2%) died. Tracheomalacia and/or stenosis were diagnosed in 8 patients (66.7%) postoperatively. Though 3 of the 4 cases who suffered from dying spell received intratracheal stent implantation, 2 cases still died.

CONCLUSION

The survival rate of the patients with EA/TEF is influenced mainly by associated life-threatening anomalies. TMS combined with a history of dying spell may be the major fatal complication.

The management of long gap esophageal atresia

BACKGROUND

Present management of esophageal atresia has enabled the survival rate to approach 95%. Controversy remains concerning the many options for the surgical management of long gap esophageal atresia without tracheoesophageal fistula and represents the difficulty of this pathology. In the last couple of years, we have had a nonexplained outbreak of cases of long gap esophageal atresia without tracheoesophageal fistula. This article reports our experience in the management of these children.

MATERIAL AND METHODS

It is a retrospective study of all cases of long gap esophageal atresia without tracheoesophageal fistula managed in our institution since 1992, focusing on the antenatal period, delivery with weight and term, the associated malformations, the initial management, and the definitive surgery. Mann-Whitney U test was used for statistical analysis.

RESULTS

Ten cases (8.7%) of long gap esophageal atresia according to Ladd's classification, 6 during the past 2 years, were taken in charge at Robert Debré Hospital between 1992 and 2002. There were 4 girls and 6 boys. Ten had a prenatal diagnosis of esophageal atresia. The average birth weight was 2496 g (range, 1400-3400 g) with an average term of 36.6-week gestation (range, 31.5-39.6). Delayed reconstruction was done in all children between 41 and 147 days of life (average of 102 days). Six had a direct anastomosis and 4 had a colonic esophagoplasty (3 with an esogastric disconnection during the same procedure). The average follow-up was 60 months (range, 27-133). There was 1 death owing to adenovirus infection at 5 years of age. Four children required a Nissen fundoplication for severe gastroesophageal reflux. At least, 2 children presented an anastomotic stricture which required pneumatic dilatations.

CONCLUSION

Treatment options for long gap esophageal atresia generally require several stages over several months. We propose, for their management, a direct anastomosis at 4 months of age whenever it is possible. If not, we use a colonic esophagoplasty with an esogastric disconnection to control the gastroesophageal reflux which is responsible for strictures and respiratory impairment and does not obstruct the aperistaltic tube.

Multistaged esophageal elongation technique for long gap esophageal atresia: experience with 7 cases at a single institution

BACKGROUND/PURPOSE

Esophageal reconstruction for long gap esophageal atresia (LGEA) is still controversial. We successfully managed 7 cases of patients with LGEA by doing staged elongation of the native esophagus and subsequent end-to-end anastomosis. The technique and efficacy of this procedure are evaluated.

METHODS

During the last 10 years, 7 patients with LGEA (Gross type A, 5; B, 1; C, 1) underwent multiple extrathoracic esophageal elongations (ETEEs) of the upper esophagus and subsequent esophagoesophagostomy. Medical records were reviewed in regard to the number of ETEE before definitive esophageal reconstruction, interval between each ETEE, operation time, time before initiation of sham feeding, duration of hospital stay, and complications.

RESULTS

The definitive esophageal reconstruction was successfully achieved without major complications in all patients after 2 to 4 stages of ETEE. The interval between each ETEE was 72 days on average. The average operation time was 98 minutes. The elongation was 1 to 3.5 cm during each session. Oral sham feeding was recommenced 4.1 days after each ETEE, and the hospital stay was 9.6 days on average. Gastroesophageal reflux occurred in all patients, requiring antireflux surgery.

CONCLUSIONS

We conclude from our experience (a) that effective esophageal lengthening with preservation of the native esophagus was achieved with multiple ETEE in LGEA and (b) that this procedure allows oral sham feeding at home until esophageal reconstruction.

A flexible approach to achieve a true primary repair for all infants with esophageal atresia

Our purpose is to present our results using a flexible surgical approach to achieve a true primary repair for all infants with esophageal atresia (EA). The proposed methods are designed to reach this goal, even when most of the intrathoracic esophagus is missing. What has made this goal attainable is the ability to rapidly induce esophageal growth. We reviewed the results of 63 consecutive patients who presented between 1984 and 2004 with an esophageal gap of greater than 2.5 cm, a distance where increasingly difficult repairs begin. Gaps of 4 cm or longer (46), 6.0 cm or longer (14), and over 10 cm (3) were included. Repairs begun elsewhere (20) included 17 spit fistulas. We present 3 surgical stages, designed to overcome tension and, for longer gaps, induce esophageal growth. For 25 infants, traction in the operating room was sufficient to dissipate tension and allow a primary repair. For the longest gaps, successful esophageal growth was induced over days in 38 patients by internal (5), external (23), and mixed internal/external traction (10). Growth quickly produced adequate esophagus for a primary repair. We conclude that adequate esophageal growth can be induced within days, even early in infancy, and this flexible approach allows the entire EA spectrum to be repaired primarily.

Long gap esophageal atresia and esophageal replacement: moving toward a separation?

BACKGROUND/PURPOSE

Treatment of long gap esophageal atresia (EA) is still a major challenge. Gastric transposition and colon interposition are the 2 most popular choices for esophageal replacement, but there is general agreement that the child's own esophagus is the best. The aim of the study was to critically evaluate the feasibility and outcome of primary repair of long gap EA with or without tracheoesophageal fistula (TEF) by direct esophago-esophageal anastomosis as the only technique.

METHODS

Seventy-one neonates with EA+/-TEF were considered. Nineteen cases were classified as long gap (> or =3 cm). All infants underwent either primary or shortly delayed repair. In the latter group, a gastrostomy was performed along with an x-ray evaluation of the gap a few days before surgery (mean age, 46.4 days). To avoid disruptive anastomotic force, all infants were kept paralyzed and mechanically ventilated for an additional 6 days after esophageal anastomosis. Before starting feeding, postoperative esophagogram was done on day 7. Endoscopy was done routinely, starting 1 month after surgery; pH monitoring was conventionally performed at 1 year of age or even earlier, should gastroesophageal reflux disease (GERD) be suspected. Follow-up ranged from 11 months to 7 years.

RESULTS

In all 19 long gap EA infants an esophago-esophageal anastomosis was performed. Six of them (31%) required an anterior esophageal flap to bridge residual gap. Complications included minor anastomotic leak in 2 cases and anastomotic stricture (<5mm) in 12 (80%) cases, which were treated with an average of 5 dilatations (1 of which with resection of the stricture). GERD occurred in 8 cases (53.3%), of which, 3 required fundoplication. None of the patients had esophageal swallowing difficulties or persistent dysphagia. Two children experienced food aversion. Mean hospital stay was 66.2 (22 to 230) days. There were 4 deaths (very low birth weight, 1; associated anomalies, 1; and late sepsis, 2).

CONCLUSIONS

Considering heat gap determination remains imprecise, it seems possible to conclude that in a well-established tertiary care level referral center: (1) long gap EA could be treated successfully with primary repair and anastomosis; (2) strictures and GER represent the most frequent postoperative problem, but additional procedures required seem "acceptable" to maintain the patient's own esophagus and avoid replacement; (3) esophageal substitution in long gap EA should be reserved for cases in which a previous attempt of esophageal reconstruction failed.

Gastric transposition in children--a 21-year experience

PURPOSE

The purpose of this study was to analyze the outcome in 173 children (104 M, 69 F) undergoing transposition since 1981.

METHODS

The most common indications for esophageal replacement included failed repair of different varieties of esophageal atresia (127), caustic injury (23), and peptic strictures (8). A total of 81% of the patients were referred from other hospitals (50% from other countries). Age at operation ranged from 7 days to 17 years. The gastric transposition was performed using blunt mediastinal dissection only in 90 patients with an additional 81 patients undergoing lateral thoracotomy. The retrosternal position was used in 2 patients.

RESULTS

There were no graft failures including those who had previously failed gastric tube or Scharlilike operations. Anastomotic leakage occurred in 12% (all but 1 resolved spontaneously). Anastomotic stricture requiring dilatation occurred in 19.6%. Half of these patients had previous caustic esophageal injury. There were 9 deaths in the group (5.2%). One death occurred intraoperatively, 5 in the early postoperative period, and there were 3 late deaths. In more than 90% of our patients, the outcome was considered good to excellent in terms of absence of swallowing difficulties or other gastrointestinal symptoms. Many, however, preferred to eat small frequent meals. Poor outcome was particularly associated with multiple previous attempts at esophageal salvage. There was no deterioration in the function of the gastric transposition in those patients followed up for more than 10 years.

CONCLUSIONS

Gastric transposition for esophageal substitution is an acceptable procedure. It is attended by 5% mortality and a 12% leak rate. A total of 19.6% of the patients needed anastomotic dilatation for stricture. In the long term, good function has been maintained. Gastric transposition compares favorably with alternative methods of esophageal replacement.

Delayed blind-pouch apposition, guide wire placement, and nonoperative establishment of luminal continuity in a child with long gap esophageal atresia

Delayed primary esophago-esophagostomy is the most physiologically attractive approach to establish luminal continuity in children with pure esophageal atresia. However, excessive tension on the mobilized esophageal ends can lead to anastomotic separation and severe leakage. To circumvent these complications, the blind pouches of a 2(1/2)-month-old child were approximated unopened when, during the extrapleural thoracotomy, a conventional anastomosis was not feasible. A suture was passed through the tip of the 2 ends and made to exit through the mouth and the gastrostomy. After healing occurred, the suture was replaced under fluoroscopic control by a Seldinger-type wire. A vein dilator then was passed over the wire, establishing the continuity between the esophageal segments. Subsequent dilatations increased the anastomosis to the desired diameter. Leakage and an additional thoracotomy were avoided, and the hospital stay was shortened. The child, now 6 years old, is well and swallows normally.

Gastric transposition for esophageal replacement in children: experience with 41 consecutive cases with special emphasis on esophageal atresia

OBJECTIVE

To evaluate the authors' experience with gastric transposition as a method of esophageal replacement in children with congenital or acquired abnormalities of the esophagus.

SUMMARY BACKGROUND DATA

Esophageal replacement in children is almost always done for benign disease and thus requires a conduit that will last more than 70 years. The organ most commonly used in the past has been colon; however, most series have been fraught with major complications and conduit loss. For these reasons, in 1985 the authors switched from using colon interpositions to gastric transpositions for esophageal replacement in infants and children.

METHODS

The authors retrospectively reviewed the records of 41 patients with the diagnoses of esophageal atresia (n = 26), corrosive injury (n = 8), leiomyomatosis (n = 5), and refractory gastroesophageal reflux (n = 2) who underwent gastric transposition for esophageal replacement.

RESULTS

Mean +/- SE age at the time of gastric transposition was 3.3 +/- 0.6 years. All but two transpositions were performed through the posterior mediastinum without mortality or loss of the gastric conduit despite previous surgery on the gastric fundus in 8 (20%), previous esophageal operations in 15 (37%), and previous esophageal perforations in 6 (15%) patients. Complications included esophagogastric anastomotic leak (n = 15, 36%), which uniformly resolved without intervention; stricture formation (n = 20, 49%), all of which no longer require dilation; and feeding intolerance necessitating jejunal feeding (n = 8, 20%) due to delayed gastric emptying (n = 3), feeding aversion related to the underlying anomaly (n = 1), or severe neurological impairment (n = 4). No redo anastomoses were required.

CONCLUSIONS

Gastric transposition reestablishes effective gastrointestinal continuity with few complications. Oral feeding and appropriate weight gain are achieved in most children. Therefore, gastric transposition is an appropriate alternative for esophageal replacement in infants and children.

Gastric transposition for esophageal replacement in children: experience with 41 consecutive cases with special emphasis on esophageal atresia

OBJECTIVE

To evaluate the authors' experience with gastric transposition as a method of esophageal replacement in children with congenital or acquired abnormalities of the esophagus.

SUMMARY BACKGROUND DATA

Esophageal replacement in children is almost always done for benign disease and thus requires a conduit that will last more than 70 years. The organ most commonly used in the past has been colon; however, most series have been fraught with major complications and conduit loss. For these reasons, in 1985 the authors switched from using colon interpositions to gastric transpositions for esophageal replacement in infants and children.

METHODS

The authors retrospectively reviewed the records of 41 patients with the diagnoses of esophageal atresia (n = 26), corrosive injury (n = 8), leiomyomatosis (n = 5), and refractory gastroesophageal reflux (n = 2) who underwent gastric transposition for esophageal replacement.

RESULTS

Mean +/- SE age at the time of gastric transposition was 3.3 +/- 0.6 years. All but two transpositions were performed through the posterior mediastinum without mortality or loss of the gastric conduit despite previous surgery on the gastric fundus in 8 (20%), previous esophageal operations in 15 (37%), and previous esophageal perforations in 6 (15%) patients. Complications included esophagogastric anastomotic leak (n = 15, 36%), which uniformly resolved without intervention; stricture formation (n = 20, 49%), all of which no longer require dilation; and feeding intolerance necessitating jejunal feeding (n = 8, 20%) due to delayed gastric emptying (n = 3), feeding aversion related to the underlying anomaly (n = 1), or severe neurological impairment (n = 4). No redo anastomoses were required.

CONCLUSIONS

Gastric transposition reestablishes effective gastrointestinal continuity with few complications. Oral feeding and appropriate weight gain are achieved in most children. Therefore, gastric transposition is an appropriate alternative for esophageal replacement in infants and children.

Significance of the clinical course and early upper gastrointestinal studies in predicting complications associated with repair of esophageal atresia

BACKGROUND/PURPOSE

In many centers, use of upper gastrointestinal (UGI) contrast studies in the early postoperative period after esophageal atresia (EA) repair is considered routine. Indications for this are many, including searching for existing problems and predicting future complications. However, most major complications, both early and late, usually are identified clinically before any radiologic studies. The purpose of this study was to investigate factors that may anticipate the development of postoperative complications after EA repair, looking particularly at the predictive value of routine early postoperative UGI studies.

METHODS

A total of 111 consecutive cases of EA were identified retrospectively over a 10-year period from 2 major Canadian pediatric health centers. One hundred one were associated with a distal tracheoesophageal fistula (TEF), of which, 90 had repairs. Ninety-seven percent of these had a UGI study at a median of 9.1 postoperative days (range, 2 to 23) before consideration of oral feeding. Charts were reviewed looking at patient variables, surgical factors, early UGI findings, and postoperative courses. Complications that required intervention were noted, including anastomotic leaks, gastroesophageal reflux (GER), strictures, and recurrent and missed fistulae. All initial UGI studies were reexamined by 1 of 2 pediatric radiologists. Logistic regression was used to examine relationships between these clinical and radiologic variables and outcomes.

RESULTS

Of the variables analyzed, univariate analysis showed clinically significant leaks to be associated with intraoperative factors (subjective degree of anastomotic tension, and the use of myotomies) and early postoperative clinical evidence suggesting a leak. In a multivariate model, all remained independently significant except for the use of myotomies. Later development of clinically significant GER also was associated with the degree of tension. It had no relationship, however, with findings of dysmotility, esophageal shortening, or reflux at the initial UGI study. Development of a stricture requiring dilatations or resection was associated with a history of clinically evident GER only; no relationships were seen with a history of an anastomotic leak or any other clinical, operative, or radiographic variables. Missed or recurrent fistulae were all suspected clinically before radiologic confirmation.

CONCLUSIONS

Early and late complications after repair of EA can be identified and potentially anticipated based on clinical findings at the time of repair and during the postoperative period. The use of early "routine" UGI studies, with no suspicion of a problem, has little value in terms of predicting complications or future clinical course.

Preoperative home care for esophageal atresia--a survey

BACKGROUND/PURPOSE

Long gap esophageal atresia may require months of preoperative management before definitive repair. When 2 recent patients prompted the authors to consider preoperative home care, no published protocol could be identified. This survey is undertaken to determine pediatric surgeons' experience with preoperative home care for long gap atresia.

METHODS

A total of 543 surgeons were asked if any patients with long gap atresia had been treated preoperatively at home. For patients sent home, information on nursing care, insurance issues, complications, and timing or type of repair was requested.

RESULTS

A total of 380 surveys (70%) were returned. A total of 165 surveys representing 348 patients were included. Forty-one of 165 surgeons (25%) treated 63 of 87 patients (72%) with long gap atresia and an intact upper pouch at home. Home nursing care was provided for 44 patients (70%): 16 (36.4%) night shift, 2 (4.5%) day shift, 3 (6.8%) 24 hour, and 23 (52.3%) intermittent care. No complications referable to preoperative home care were reported.

CONCLUSIONS

Significant hesitancy and practice variance exists regarding preoperative home care of patients with long gap esophageal atresia. Many surgeons are satisfied with the safety and cost effectiveness of this technique, although a prospective, multicenter trial is needed to study it in a randomized, controlled fashion.

Esophageal atresia: primary repair of a rare long gap variant involving distal pouch mobilization

This report describes a rare type IIIb variant of long gap pure esophageal atresia treated with delayed primary repair. Preoperative imaging showed a distal pouch with a unusually long tapering end, and a 5-vertebral body gap. Delayed exploration with mobilization of the distal pouch allowed for successful primary repair without the need of myotomy. The characteristic radiological appearance of this rare variant enables its preoperative recognition and warrants attempting primary repair with a good expectation of success.

Fetal esophageal transplantation in rats: a treatment option for long-gap esophageal atresia

PURPOSE

The aim of this study is to determine if fetal esophageal transplantation can create viable esophageal tissue that may be used for treating long gap esophageal atresia.

METHODS

Fetuses of gestational age 19 to 20 days were obtained by hysterotomy of pregnant 15-week-old Lewis rats. A 10-mm long segment of esophagus was obtained from each fetus by thoracolaparotomy and transplanted by wrapping it in a pouch created in the distal omentum of a 5-week-old Lewis rat (syngeneic transplantation: n = 15). Transplanted fetal esophageal grafts were harvested 10 days post-transplantation and fixed in 10% formalin and embedded in paraffin. H&E was used for histological examination, and PGP 9.5 (a neuronal antibody) was used for immunohistochemistry. Esophageal segments obtained from 10-day-old Lewis rats were used as controls.

RESULTS

Thirteen of 15 (87%) grafts were transplanted successfully. The successfully transplanted graft could be mobilized to the thoracic cavity without tension or compromising of vascularity, because of the long omental pedicle. H&E staining and PGP 9.5 immunohistochemistry showed normal esophageal structure with intact esophageal nervous system, comparable with control specimens.

CONCLUSIONS

Fetal esophageal transplantation produces viable esophageal tissue that may find application for treating long gap esophageal atresia providing rejection can be controlled adequately.

Development of a true primary repair for the full spectrum of esophageal atresia

OBJECTIVE

To determine whether or not a true primary repair, without myotomies and with the gastroesophageal junction below the diaphragm, can be accomplished across the esophageal atresia (EA) spectrum. Our hypothesis is that the esophageal anastomosis can withstand significant tension. The consequences, particularly for those patients with a very long gap atresia, were assessed.

SUMMARY OF BACKGROUND DATA

Difficulties arise roughly in proportion to the size of the gap between esophageal segments. Reported surgical complications remain frequent, and particularly at the far end of the EA spectrum, not all children are left with a satisfactorily functioning esophagus or esophageal substitute.

METHODS

The outcomes of all infants who had a true primary repair of EA from 1976-1997 were determined. Surgically, the methods used to achieve a reliable true primary repair were expanded to accomplish this, even for a very long gap EA.

RESULTS

From 1976-97, 70 infants with or without associated tracheoesophageal fistula (TEF) had primary repairs performed with no surgery-related deaths and 11% later deaths. No interpositions were performed since 1983. There were no discernible anastomotic leaks and one late recurrent TEF related to the early use of balloon dilation. Ten infants had gaps of 5.0-6.8 cm and, among these, four had gaps of 5.5-6.8 cm that could not be pulled together initially. Traction sutures in the esophageal ends, however, produced sufficient lengthening within 6-10 days for a true primary repair. Very long gap repairs produced more reflux (10 of 10 required a fundoplication versus 24 of 70 overall) and more dilations to relieve strictures. Two infants underwent stricture resection with no recurrence. On follow-up, all patients over 2 years of age were eating well or satisfactorily, and none had a gastrostomy tube.

CONCLUSIONS

(1) The esophageal anastomosis can withstand considerable tension and allows a reliable true primary repair for the full EA spectrum. (2) Growth is rapid and traction sutures will produce significant esophageal lengthening within days. (3) With increasing tension, gastroesophageal reflux (GER) and strictures are more common; however, both are treatable. Follow-up reveals the benefits of true primary repair over other solutions.

Esophageal atresia and tracheoesophageal fistula: surgical experience over two decades

BACKGROUND

Despite improvements in survival, for infants born with esophageal atresia tracheoesophageal fistula, or both, the morbidity associated with repair of these anomalies remains high.

METHODS

This report retrospectively analyzes 81 patients with esophageal atresia, tracheoesophageal fistula, or both presenting to our institution between 1975 and 1995, with a focus on anastomotic complications.

RESULTS

There were 46 male and 35 female patients with a mean gestational age of 37 weeks and mean birth weight of 2443 g. Forty-four patients underwent primary esophageal anastomoses, 7 underwent delayed primary anastomoses, 12 patients underwent staged repairs, and 5 underwent repair of H-type fistulas. Among 62 patients with anastomoses, complications included stricture in 25/62 patients (40%), leakage in 12/62 patients (19%), and recurrent tracheoesophageal fistulas in 6/62 patients (10%). Stricture rates for esophagoclonic anastomoses versus esophagoesophageal anastomoses were 4/8 cases (50%) versus 21/54 cases (39%). This difference was not statistically significant. All esophagoesophageal strictures were managed successfully with dilations; three of four esophagocolonic strictures required anastomotic revision. The leakage rate for esophagocolonic anastomoses versus esophagoesophageal anastomoses was 6/8 cases (75%) versus 6/54 cases (11%). This difference was statistically significant (p = 0.0003). Two patients required revision of their colon grafts secondary to necrosis. Eighteen of 81 patients (22%) died. Operative mortality was 9/74 (12%). Causes of death included associated anomalies (n = 15), recurrent aspiration and sepsis secondary to missed fistula (n = 1), and unknown (n = 2).

CONCLUSIONS

Although the morbidity associated with surgical repair of these anomalies is high, this does not affect the overall survival. The high complication rate associated with colonic interposition suggests that one should preserve the native esophagus as a primary conduit whenever feasible.

Experience with distal circular myotomy for long-gap esophageal atresia

From 1980 to 1994, the authors treated 65 cases of esophageal atresia (with or without tracheoesophageal fistula). Among these patients, 15 (23%) underwent pure proximal circular myotomies and five (8%) underwent both proximal and distal circular myotomies. Of the latter five cases, three were Gross type C and two were Gross type A. The gap ranged from 4.5 cm to 6.5 cm (mean, 5 cm). Surgical complications in these five patients included two anastomotic leaks (40%), one anastomotic stricture (20%), and four gastroesophageal refluxes (80%). Three patients eventually underwent fundoplication as an antireflux procedure. Mucosal outpouching was noted in all cases. The myotomy did not adversely affect the esophageal peristalsis and motility on the esophagogram. Esophageal function was similar to that of other children who had esophageal atresia without myotomy. All patients could eat food typical for their age. This limited experience suggests that distal circular myotomy might be a safe adjuvant procedure to achieve primary anastomosis in long-gap esophageal atresia.

Application of Collis gastroplasty to the management of esophageal atresia

Establishment of esophageal continuity in the presence of an isolated esophageal atresia frequently requires deferred esophageal substitution. The author describes the use of Collis gastroplasty as an esophageal lengthening technique for the distal esophagus. This technique permitted the performance of primary repair of the esophagus in an infant with a 6-cm gap that otherwise would have required an esophageal substitution procedure. Morbidity after this procedure is comparable to that occurring after a number of established techniques.

Pure esophageal atresia: a 50-year review

This review encompasses 50 years (1942 through 1991) and 69 newborns (43 boys, 26 girls). Half the babies were premature (weighing less than 2.5 kg), and about one third had other anomalies. The procedures used in this series were late primary anastomosis (17), gastric tube reconstruction (16), staging esophagostomy and gastrostomy (13), gastric pull-up (13), early primary anastomosis (4), and colon replacement (3). Four neonates received no treatment. The most common repair in the 1940s and 1950s was the gastric pull-up; the gastric tube was the most popular in the 1960s and 1970s. Delayed primary anastomosis has been the operation of choice since the 1980s. Over the last decade, it has become apparent that primary repair is successful in three quarters of such infants if the wait is 3 months and/or the newborn weight has at least doubled. This repair appears to provide the best functional result, unless there is an anastomotic stricture. Before the 1970s, the survival rate was below 40%, but since the 1980s the rate has more than doubled, to 90% in our series, regardless of the type of repair used.