Advances in endoscopy and other diagnostic techniques: Working Group report of the second World Congress of Pediatric Gastroenterology, Hepatology, and Nutrition

Efficacy of endoscopic ultrasound-guided drainage of pancreatic pseudocysts in a pediatric population

BACKGROUND

While pancreatitis is uncommon in children, pseudocyst development can be a serious complication. Endoscopic drainage of pseudocysts is well established in adults. However, there are limited data regarding this procedure in a pediatric population. The objective of this study is to determine the safety and efficacy of endoscopic ultrasound-guided pseudocyst drainage in children.

METHODS

The study group included children (age <18 years) who presented for endoscopic drainage of symptomatic pancreatic pseudocysts in whom endoscopic ultrasound (EUS) was performed. In those cases with EUS guidance, a 19-gauge needle was used to access the pseudocyst and place a guidewire under fluoroscopic visualization. Needle-knife diathermy and balloon dilation of the tract were performed with subsequent placement of double pig-tailed stents for drainage.

RESULTS

Ten children with mean age of 11.8 years (range 4-17 years) were analyzed for pancreatic pseudocysts due to biliary pancreatitis (n = 4), trauma (n = 2), familial pancreatitis (n = 1), idiopathic pancreatitis (n = 2), and pancreas divisum (n = 1). In eight cases, EUS-guided puncture and stent placement was successful. In the remaining two cases, aspiration of cyst fluid until complete collapse was adequate. As experience increased with EUS examination in children, the therapeutic EUS scope alone was used in 50% of cases for the entire procedure. In all ten cases, successful transgastric endoscopic drainage of pseudocysts was achieved.

CONCLUSIONS

Endoscopic drainage of symptomatic pancreatic pseudocysts can be achieved safely in children. EUS guidance facilitates optimal site of puncture as well as placement of transmural stents.

Endoscopic ultrasonography in pediatric patients with gastrointestinal disorders

BACKGROUND

Endoscopic ultrasound is a diagnostic tool for evaluation of gastrointestinal diseases in adults, but in children the use of endoscopic ultrasound is limited. This study retrospectively evaluates endoscopic ultrasound indications in, safety in, and impact on children.

PATIENTS AND METHODS

We reviewed the data of all of the pediatric patients (<18 years old) that underwent endoscopic ultrasound in our institution. The main goal was to evaluate the impact of endoscopic ultrasound in this patient population. Significant impact was defined as a new diagnosis or treatment attributed to the endoscopic ultrasound examination.

RESULTS

Thirty-two children (21 boys, 11 girls) at mean age 12 +/- 5 years; (range = 1.5-18 years) underwent endoscopic ultrasound during a period of 6 years. The pancreas and biliary tract were examined in 19 children, esophagus in 8, and the stomach and rectum in 2 children each. Only 1 child had endoscopic ultrasound for duodenal indication. The indications in the pancreas and biliary tract group were recurrent pancreatitis in 9 children, cyst or mass in 6 children, and obstructive jaundice in 4 children. Indications in the esophagus group were stenosis in 4 children, and suspected duplication and esophageal mass in 2 children each. We used conscious sedation in 18 children and unconscious sedation in 12. Two children underwent endoscopic ultrasound with no anesthesia at all. In 7 cases, endoscopic ultrasound-guided fine-needle aspiration was performed. The procedure was successful in all of the patients with no complications. Endoscopic ultrasound changed the diagnosis or therapy in 14 cases.

CONCLUSIONS

Endoscopic ultrasound is an effective tool in the evaluation of pediatric gastrointestinal patients, mostly with pancreatobiliary or esophageal disorders. Endoscopic ultrasound is a safe procedure with a significant impact in almost half of the children examined.

Sedation of the pediatric and adolescent patient for GI procedures

There remains no ideal sedative for pediatric and adolescent patients undergoing gastrointestinal procedures. Instead, pediatric gastroenterologists must consider many factors, including patient age, medical history, clinical status, anxiety level, as well as targeted sedation level, to select the appropriate methods and agents to achieve optimal sedation for endoscopy. The two primary types of sedation are endoscopist-administered intravenous (IV) sedation and anesthesiologist-administered general anesthesia. If IV sedation is used, pediatric endoscopists must be prepared for children to become agitated, adding to stress for both patients and clinical staff. General anesthesia provides the advantage of complete patient immobility but also entails increased costs and utilization of hospital resources. Technical advances in electronic monitoring, both in the pediatric endoscopy suite and operating room settings, are contributing to increased patient safety. Nevertheless, sedation-related events, independent of type of sedation or regimen, represent the most common complications of pediatric endoscopy.