Definitive localization of isolated tracheoesophageal fistula using bronchoscopy and esophagoscopy for guide wire placement

H-Type Tracheoesophageal Fistula Cannulation for Rapid Intraoperative Localization

Various techniques for tracheoesophageal fistula cannulation have been reported. In this case, we created a loop using a plastic catheter. The loop allowed us to create traction for rapid intraoperative localization and to pull a difficult-to-reach fistula, superiorly into the neck, to be reached through a cervical approach. Laryngoscope, 133:2425-2427, 2023.

Isolated Tracheal Oesophageal Congenital Fistula: A Case Report

Esotracheal fistula is a rare malformation represented by a thin ascending channel between the esophagus and the posterior surface of the trachea. Diagnosis is sometimes difficult due to the atypical character of the symptomatology. Diagnosis is made by a gastro-duodenal oesophageal transit (TOGD) and the treatment is surgical. We report a case of isolated congenital esotracheal fistula collected in the pediatric visceral and urogenital surgery department at the Mohammed VI University Hospital Center in Oujda, Morocco, previously not discovered, and its surgical treatment as well as an updated literature review of this entity.

Flexible Bronchoscopy Diagnosis of Uncommon Congenital H-type Tracheoesophageal Fistula, Dual Fistulae, Bronchoesophageal Fistula, and Recurrence of Fistula in Children: A 20-year Experience

BACKGROUND

Interventional pediatric flexible bronchoscopy has many advantages over radiologic investigations in diagnosing uncommon congenital H-type tracheoesophageal fistula (TEF), dual TEF, bronchoesophageal fistula (BEF) and fistula recurrence including higher rates of identification and anatomic localization with guide wire cannulation. We compare the diagnostic utility of flexible bronchoscopy to radiologic techniques for congenital aerodigestive fistula.

METHODS

A single center retrospective review was completed of all cases of pediatric TEF and BEF diagnosed with flexible bronchoscopy between January 2000 and November 2020.

RESULTS

Fistulae were diagnosed 21 times in 18 patients at a median age of 1.22 years (interquartile range: 0.50 to 2.99). The median time from diagnosis to repair was 17.5 days (interquartile range: 5.5 to 43). Symptoms commonly related to fistula were found in all patients. Uncommon fistulae included single H-type TEF (n=10, 47.6%), dual H-type TEF (n=2, 9.5%), dual proximal and distal TEF with esophageal atresia (n=5, 23.8%), TEF recurrence (n=2, 14.3%), BEF (n=1, 4.8%), and a BEF recurrence (n=1, 4.8%). Flexible bronchoscopy confirmed the diagnosis in all fistulae using a guide wire cannulation or methylene blue dye injection. A combined procedure with simultaneous bronchoscopy and esophagoscopy was used for 6 fistulae. The positive examination rate was 75% for bronchoscopy compared with 2.6% for contrast swallow studies and 28.6% for tube esophagograms.

CONCLUSIONS

Flexible bronchoscopy should be considered as a first line investigation in uncommon aerodigestive fistulae. In the absence of a skilled bronchoscopist, the best radiologic investigation is a pull-back tube esophagogram but may still require endoscopic confirmation at the time of fistula repair.

Detection of H-type bronchoesophageal fistula in a newborn: A case report and literature review

RATIONALE

Congenital tracheoesophageal fistula (TEF) is a rare developmental malformation. The H subtype accounts for approximately 4% of TEFs. Unlike other TEFs, the H-type is not accompanied by esophageal atresia and has nonspecific clinical symptoms, and its specific anatomical abnormalities are not always readily apparent. Furthermore, none of the currently available diagnostic methods for H-type TEF have absolute sensitivity, resulting in misdiagnoses, and accurate diagnoses are often delayed even until adulthood; in our case, we detected a congenital bronchoesophageal fistula, which is even more rare than regular H-type TEF, through a technique that was not previously reported for newborns, involving bronchoscopy, with methylene blue injected through an esophagoscope. We believe that we have provided this kind of case first in newborns.Furthermore, because there is not one literature summarizing the clinical symptoms and the effective methods up to now, we still are not clear which detective method is more efficient or accurate, especially in newborns, so it is very necessary to summarize and compare for improving the early diagnosis of TEFs; our study makes a significant contribution to the literature because we collated previously reported cases, including the clinical features and the usefulness and success rates of major tests, which will be very helpful for the early diagnosis of TEFs.

PATIENT CONCERNS

A newborn male presented with an array of nonspecific clinical symptoms from birth, leading to pneumonia and mechanical ventilation. Oral feeding led to an improvement in most but not all symptoms, which returned when oral feeding was resumed. A second round of confirmatory tests was still unable to detect the cause.

DIAGNOSIS

The diagnosis of H-type bronchoesophageal fistula was established through a technique that was not previously reported for newborns, involving bronchoscopy, with methylene blue injected through an esophagoscope.

INTERVENTIONS

The surgery was performed after diagnosis, and the bronchoesophageal fistula was successfully repaired.

OUTCOMES

The patient was discharged on postoperative day 7, and his status was reported to be normal at a follow-up visit 8 months after surgery.

LESSONS

H-type TEF is a rare congenital abnormality, and its early diagnosis is highly difficult, especially bronchoesophageal fistula. Increased oral saliva and air-filled stomachs are characteristic manifestations. Bronchoscopy combined with esophagoscopy can improve the rate of early diagnosis. A combination of tests can improve the detection rate.

Low flow intermittent bronchoscopic oxygen insufflation to identify occult tracheo-esophageal fistulas

BACKGROUND

Esophageal atresia and tracheo-esophageal fistula (TEF), a well described congenital anomaly of the aero-digestive tract, commonly presents with inability to swallow and feed immediately after birth. However, diagnosis of recurrent or isolated TEF can be challenging and requires a combination of endoscopic and contrast studies. We describe a hitherto unreported technique of low flow intermittent oxygen insufflation into the suspicious tract and examine its safety and diagnostic yield for identification of occult TEF.

METHODS

A retrospective single center cohort study, analyzing case notes of patients with TEF who underwent bronchoscopic oxygen insufflation for suspected recurrent or isolated TEF between 2006 and 2019 at a tertiary pediatric hospital.

RESULTS

One-hundred and seven patients with TEF underwent 142 bronchoscopies during the study period. Of these, 22 patients underwent 28 bronchoscopies with oxygen insufflation. Twelve (43%) open fistulas were identified; of these, 9 (75%) were found using oxygen insufflation, revealing the fistula in 4/9 (44%) cases that had not been apparent using simple bronchoscopic visualization alone. One fistula was missed with multiple investigations, including bronchography and found only using oxygen insufflation. No complications were encountered.

CONCLUSIONS

Recurrent or isolated TEF may be missed using ordinary flexible bronchoscopy and imaging studies. Low flow oxygen insufflation can be applied safely and may detect otherwise occult TEF.

Practical safety in the diagnosis and treatment of congenital isolated tracheoesophageal fistula

The rareness of H-type tracheoesophageal fistula in conjunction with its unspecific clinical presentation and wide range of anatomical presentation makes its diagnosis and treatment a problematic topic for both ear, nose and throat (ENT) specialists and pediatric surgeons worldwide. Symptoms and clinical signs of H-TOF are easily misleading. Diagnostic methods, most of the times, are dependent on the physician's experience; therefore, various errors may be made. We analyzed our experience in managing H-TOF cases over the last 15 years. Advice and strategies of action for health professionals directly involved in the diagnosis and treatment were identified, but also errors and mistakes while managing 6 cases. We analyzed 'red flags' but also important steps in the practical safety concerning this rare congenital malformation. Choosing the surgical access for division of the fistula throughout the cervical or thoracic approach is sometimes difficult. A scrupulous perioperative planning is mandatory. A dynamic overview of the patient's presentation never underestimating the subtlety of H-TOF presentation should be conducted for its early recognition and achieving best outcomes.

Flexible bronchoscopy in diagnosis and management of dual tracheoesophageal fistula: A case series

Dual and H-type tracheoesophageal fistulae can present major diagnostic and management difficulties. A methodological approach with flexible bronchoscopy and a guide wire cannulation technique was used to diagnose, localize, and aid operative surgical management in five children with dual and H-type tracheoesophageal fistulae. All children had successful outcomes.

Long-term outcomes following H-type tracheoesophageal fistula repair in infants

PURPOSE

To evaluate outcomes following repair of H-type tracheoesophageal fistula (TEF).

METHODS

Retrospective chart review of infants with H-type TEF treated at our institution between 2000 and 2014. Patient demographics, surgical management, and postoperative function were evaluated.

RESULTS

Of the 268 patients with esophageal atresia/TEF treated at our center, 16 (6%) had an H-type TEF (10 males). Thirteen (81%) had associated anomalies. All patients were symptomatic: choking and sputtering were the most common presentation (n = 10, 63%). Diagnosis Age at diagnosis was 8 days (1 day-34 months). All patients were diagnosed based on a single esophagogram. Prior to surgery, 12 (75%) patients underwent bronchoscopy and 11 underwent cannulation of the TEF tract. Surgery All patients underwent open repair. One was started thoracoscopically but converted to open due to esophageal sero-muscular injury. Repair was achieved in all patients via a transcervical approach (right-sided incision in 15). One patient had an unsuccessful prior attempt at repair using tissue glue. Following TEF division, 11 patients had tissue interposition grafts placed (9 muscle, 2 fat). Postoperative course Eight (50%) patients had postoperative vocal cord paresis (6 right-sided, 2 bilateral). A patient developed recurrent TEF 78 days postoperatively that was subsequently repaired. Follow-up At 41 months (8-143), there were no mortalities, all patients with vocal cord paresis were asymptomatic despite the fact that only 3 of 8 (38%) regained function, and nine (56%) patients had gastro-esophageal reflux requiring treatment.

CONCLUSIONS

This large, single-center series demonstrates that H-type TEF can be diagnosed with esophagogram at an early age. Postoperative recurrent laryngeal nerve paresis and gastro-esophageal reflux disease are common following repair. Although most patients with vocal cord paresis eventually become asymptomatic, two-thirds do not regain vocal cord function. This reinforces the importance of routine examination of vocal cord movement following H-type TEF repair.

Trans-cervical, trans-tracheal approach to proximal tracheo-oesophageal fistula: a novel technique

Esophageal atresia and tracheo-esophageal fistula (TEF) occur in 1/2400-4500 births. Whilst the diagnosis of esophageal atresia is readily made shortly after birth, patients with an isolated H type TEF can present with varying degrees of symptomatology which can pose a diagnostic challenge. A combination of contrast esophagogram and endoscopic evaluastion is the most commonly employed localization strategy. Despite accurate pre-operative localization, intra-operative identification of the TEF can prove substantially more challenging. The authors of this report describe a novel approach in the management of a proximal TEF, which allows direct visualization and cannulation via a trans-cervical, trans-tracheal approach.

Cervical/thoracotomic/thoracoscopic approaches for H-type congenital tracheo-esophageal fistula: a systematic review

PURPOSE

Aim of this systematic review is to investigate the thoracic and cervical surgical approaches of H-type tracheo-esophageal fistula (TEF) according to the position of the fistula.

METHODS

The PubMed database was searched for original studies on H-type TEF treatment published between 1977 and 2012. Manuscripts finally included were divided into open and thoracoscopic surgery groups.

RESULTS

Seventeen studies were selected for open surgery group, and most of them agree on the importance of pre-operative diagnosis of the fistula by preliminary tracheoscopy. Right cervicotomy was used in 70 cases (76.9%), left cervicotomy in 12 (13.2%), and thoracotomy only in 9 (9.9%). Five studies were included in thoracoscopic group (6 patients). Indications for the surgical approach (cervical vs thoracic) according to the position of the TEF were clearly described in 10 manuscripts, and all stated differences in surgical technique details. Complications and mortality rates were not statistically correlated to the different surgical approaches.

CONCLUSIONS

The evidence base in regard to the treatment of H-type fistula in children is poor and the skills and preferences of the surgeons guide the choice of the procedure. Surgical division of the fistula is curative, and the key to a successful repair is the pre-operatively identification of the level of the fistula with tracheoscopy. Right cervicotomy seems to be the approach of choice in the majority of case, with the thoracic approach appropriate only for fistulae opening below T2. Further well-designed prospective studies which take into account of selection and performance bias are strongly required.

Double H-type tracheoesophageal fistulas identified and repaired in 1 operation

Isolated tracheoesophageal ("H-type") fistula is a relatively uncommon congenital anomaly that can be difficult to identify and, at times, challenging to repair. We present a very unusual case of an infant with 2 distinct H-type tracheoesophageal fistulas (TEFs) identified and repaired in 1 operation. A newborn male infant presented with coughing with feeds. Contrast esophagram demonstrated an intrathoracic H-type fistula without esophageal atresia. In the operating room, rigid bronchoscopy was performed, and a second TEF was identified in the cervical region. A separate balloon catheter was placed in each fistula. The intrathoracic fistula was repaired through a thoracotomy incision, and the more proximal fistula was repaired through a cervical incision. Each repair was uncomplicated, and recovery was uneventful. Double H-type tracheoesophageal appears to be extremely rare. This case underscores the importance of searching for a second fistula by bronchoscopy before undertaking definitive repair of a TEF.

Role of preoperative 3D CT reconstruction for evaluation of patients with esophageal atresia and tracheoesophageal fistula

OBJECTIVE

The role of preoperative contrast-enhanced computerized tomography (CT) of chest with three-dimensional (3D) reconstructions was evaluated in neonates with esophageal atresia and tracheoesophageal fistula.

METHODS

This was a prospective study which investigated 30 cases of esophageal atresia with tracheoesophageal fistula. All patients were evaluated preoperatively with contrast-enhanced spiral CT using a low-dose CT protocol. 3D CT reconstruction images were evaluated for the type of esophageal atresia, the distance between the upper and lower esophageal pouches, origin, level and position of the fistula, and the presence or absence of any other cardiac, pulmonary or mediastinal lesions and the findings were correlated with the findings at surgery. The radiation dose for each patient was calculated using the formula-Effective dose (E) = DLP × (E/DLP)age.

RESULTS

All the 30 cases had type-C esophageal atresia with tracheoesophageal fistula as per Gross classification. The exact site of the fistula could be identified only in 26 (80 %) cases. The mean gap between the upper pouch and lower fistula was 0.95 ± 0.57 cm (range 0.2-2.8 cm) on CT scan and 1.38 ± 0.61 cm (range 0.5-3.2 cm) at surgery. On statistical analysis, the correlation was found to be significant (p < 0.0001). In addition, lung pathology (consolidation), cardiac pathology and vertebral anomaly were also detected on CT scan in some cases. The mean radiation dose for the neonates who underwent CT chest was calculated to be 1.79 mSv which is significantly high.

CONCLUSION

Though preoperative CT scan of chest has many advantages, it involves significant exposure to ionizing radiation and risk of radiation-induced cancer in the future. Additionally in 20 % of cases, the fistula could not be located on CT scan. The most common variety of esophageal atresia and tracheoesophageal fistula is Gross type C (86 %) that has low to intermediate gap (97 %) and can be anastomosed primarily. Thus, CT scan can provide good anatomical delineation, but may not help in surgical decision making. Hence, performing CT in these cases would unnecessarily expose the neonates to ionizing radiation. Therefore, there is no role for CT scan in the routine preoperative assessment of EA with distal TEF.

A unique presentation of a standard type C esophageal atresia in a very low-birth-weight neonate

Neonates with esophageal atresia and tracheoesophageal fistula usually present with inability to swallow immediately after birth often associated with respiratory distress. This is an unusual presentation of a very low-birth-weight neonate with a type C tracheoesophageal fistula that was fed for the first 4 days of life through an unintentional tracheogastric tube without incident.

Technical aspects of the thoracoscopic repair of a late presenting congenital H-type fistula

Congenital H-type fistulae are a rare abnormality. They commonly present with only minor respiratory complications and can, therefore, be difficult to identify. Conventionally, correction is via a ligation performed via either a cervical or thoracotomy incision, dependant on the fistula site. Thoracoscopic repair is emerging as a tenable alternative to traditional approaches and offers some advantages. This paper details the technical aspects of the thoracoscopic ligation of an H-type fistula.

An extremely rare abnormality of a double tracheoesophageal fistula without atresia of the esophagus; a case report and review of the literature

Tracheoesophageal fistulas without atresia of the esophagus are rare abnormalities of the upper gastrointestinal tract with an incidence rate of between 1% and 5%. Even more infrequent are 2 tracheoesophageal fistulas without atresia of the esophagus. This case report illustrates the history of an infant with 2 tracheoesophageal fistulas. The corresponding literature was reviewed, and a diagnostic algorithm was described.

H-type congenital tracheoesophageal fistula: University Of Iowa experience 1985 to 2005

OBJECTIVES

We review the diagnostic workup, associated disorders, surgical technique, and postoperative course of patients who underwent repair of H-type tracheoesophageal fistulas.

METHODS

We performed a retrospective chart review of patients who received a diagnosis of tracheoesophageal fistula at the University of Iowa.

RESULTS

Seven patients with an H-type tracheoesophageal fistula and a single patient with a missed proximal fistula associated with esophageal atresia were identified. Their symptoms included coughing with feeding, recurrent pneumonia, and episodic cyanosis. A delay in diagnosis was seen in 4 patients and ranged from 2.5 months to 5.9 years. In all patients, the diagnosis was made with an esophagogram. The level of the fistulas was between C5 and T3, and all were successfully repaired via a right cervical approach.

CONCLUSIONS

A high index of suspicion for an H-type tracheoesophageal fistula should be maintained in the presence of neonatal respiratory symptoms, as the condition can be associated with a delay in diagnosis. Repeat esophagograms and bronchoscopy may be required for diagnosis. In the postoperative period, airway obstruction is a potential risk; however, long-term difficulty with swallowing, respiration, and phonation was not observed.

Transillumination of H-type tracheoesophageal fistula using flexible miniature bronchoscopy: an innovative technique for operative localization

Precise localization of the fistula is the most important step in the operative strategy for dealing with H-type tracheoesophageal fistula. Bronchoscopic cannulation of the fistula with a Fogarty or ureteric catheter has been recommended to aid ready identification, but it is not always successful. We report an innovative technique that permitted localization of H-type fistula intraoperatively. A flexible pediatric 2.2-mm bronchoscope (Olympus BF Type N20) was steered through a standard endotracheal tube, and the fistula tract was illuminated, making its identification and subsequent repair straightforward. We have successfully deployed this approach in 3 newborns. We recommend the technique to localize H-type fistula.

Case of the missing penny: thoracoscopic removal of a mediastinal coin

Complications of coin ingestion in children, although rare, include esophageal perforation, tracheoesophageal fistula, esophago-aortic fistula, and death. The authors describe thoracoscopic removal of a mediastinal coin that migrated extraluminally from the esophagus in a 23-month-old girl. Right-sided thoracoscopic exploration using a 3-trocar technique in a modified prone position was used. Coin location was assisted by manipulation of a transorally placed Foley catheter and intraoperative fluoroscopy. The coin was retrieved successfully with no intraoperative or postoperative complications and minimal postoperative pain. This is the first report of successful thoracoscopic removal of a mediastinal coin. Thoracoscopy may be a valuable approach for mediastinal foreign body removal in children.

Intraoperative fibreoptic bronchoscopy during neonatal tracheo-oesophageal fistula ligation and oesophageal atresia repair

Maintenance of adequate ventilation under anaesthesia can be difficult during identification and ligation of congenital tracheo-oesophageal fistula with repair of oesophageal atresia. Anaesthesia may also be complicated by problems associated with prematurity, pre-existing aspiration pneumonitis, and difficulty positioning the endotracheal tube to prevent inflation of the stomach with increased risk of aspiration and diaphragmatic splinting. Even intubation of the fistula and gastric rupture may occur. Two neonatal cases are presented where use of a 2.2 mm neonatal bronchoscope passed through a 3.0 mm ID tracheal tube facilitated surgical identification of the fistula, diagnosis of fistula intubation and other airway problems intraoperatively.

Simplified access for division of the low cervical/high thoracic H-type tracheoesophageal fistula

H-type tracheoesophageal fistulas (H-TEF) often are located in the low cervical/high thoracic region where determination of the most appropriate surgical approach is difficult. When it can provide adequate exposure, a cervical incision is preferred because of the likelihood of decreased morbidity. A child with VACTERL association presented with recurrent respiratory problems. Esophagogram showed an H-TEF below the level of the clavicle. A vascular guide wire was placed through the H-TEF with the ends brought out through the mouth. Under fluoroscopic guidance, gentle traction was placed on the wire to bring the fistula into the neck for an easily accessible cervical exposure, thus eliminating the need for a thoracotomy.

Endoscopic ablation of Barrett's esophagus

Barrett's esophagus is a premalignant lesion of the esophagus that arises as an abnormal tissue response to epithelial injury from gastroesophageal reflux. Barrett's esophagus has previously been considered an irreversible lesion that required life-long surveillance to prevent malignant transformation. Recently, combination therapy with pharmacologic or surgical control of acid reflux combined with endoscopic delivery of a mucosal injury appears to have the capability of reversing superficial Barrett's tissue, and perhaps deeper tissue as well. Whether Barrett's esophagus is cured and cancer/dysplasia prevented by these techniques will require long-term follow-up of these patients.