• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제25권4호
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• pp.300-311
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• 2022

Purpose: Dysphagia, vomiting and feeding difficulties are common symptoms, with which children present. Esophageal function testing with high resolution manometry can help in diagnosing and treating these patients. We aim to access the clinical utility of high-resolution manometry of esophagus in symptomatic pediatric patients. Methods: A retrospective chart review was done on all symptomatic patients who underwent esophageal high-resolution manometry between 2010 and 2019 at Sydney Children's Hospital, Australia. Manometry results were categorized based on Chicago classification. Demographic data, indication of procedure, manometric findings, and details of treatment changes were obtained and analyzed. Results: There were 62 patients with median age of 10 years (9 months-18 years). The main indication for the procedure was dysphagia (56%). Thirty-two percent of patients had a co-morbid condition, with esophageal atresia accounting for 16%. The majority (77%) of patients had abnormal manometry which included, ineffective esophageal motility in 45.2%. In esophageal atresia cohort, esophageal pressurization was seen in 50%, aperistalsis in 40% and 10% with prior fundoplication had esophago-gastric junction obstruction. Patients with esophago-gastric junction obstruction or achalasia were treated by either pneumatic dilation or Heller's myotomy. Patients with ineffective esophageal motility and rumination were treated with a trial of prokinetics/dietary texture modification and diaphragmatic breathing. Conclusion: Esophageal high-resolution manometry has a role in the evaluation of symptomatic pediatric patients. The majority of our patients had abnormal results which led to change in treatments, with either medication, surgery and/or feeding modification with resultant improvement in symptoms.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제18권1호
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• pp.55-59
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• 2015

Gastroesophageal reflux disorder (GERD) is the most common esophageal disorder in children. Achalasia occurs less commonly but has similar symptoms to GERD. A nine-year old boy presented with vomiting, heartburn, and nocturnal cough. The esophageal impedance-pH monitor revealed nonacidic GERD (all-refluxate clearance percent time of 20.9%). His symptoms persisted despite medical treatment for GERD, and he was lost to follow up. Four years later, he presented with heartburn, solid-food dysphagia, daily post-prandial vomiting, and failure to thrive. Endoscopy showed a severely dilated esophagus with candidiasis. High-resolution manometry was performed, and he was diagnosed with classic achalasia (also known as type I). His symptoms resolved after two pneumatic dilatation procedures, and his weight and height began to catch up to his peers. Clinicians might consider using high-resolution manometry in children with atypical GERD even after evaluation with an impedance-pH monitor.

• Journal of Neurogastroenterology and Motility
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• 제24권4호
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• pp.570-576
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• 2018

Background/Aims Swallows with viscous or solid boluses in different body positions alter esophageal manometry patterns. Limitations of previous studies include lack of standardized viscous substrates and the need for chewing prior to swallowing solid boluses. We hypothesize that high-resolution impedance manometry (HRiM) using standardized viscous and super-viscous swallows in supine and upright positions improves sensitivity for detecting esophageal motility abnormalities when compared with traditional saline swallows. To establish normative values for these novel substrates, we recruited healthy volunteers and performed HRiM. Methods Standardized viscous and super-viscous substrates were prepared using "Thick-It" food thickener and a rotational viscometer. All swallows were administered in 5-mL increments in both supine and upright positions. HRiM metrics and impedance (bolus transit) were calculated. We used a paired two-tailed t test to compare all metrics by position and substrate. Results The 5-g, 7-g, and 10-g substrates measured 5000, 36 200, and 64 $700mPa{\cdot}sec$, respectively. In 18 volunteers, we observed that the integrated relaxation pressure was lower when upright than when supine for all substrates (P < 0.01). The 10-g substrate significantly increased integrated relaxation pressure when compared to saline in the supine position (P < 0.01). Substrates and positions also affected distal contractile integral, distal latency, and impedance values. Conclusions We examined HRiM values using novel standardized viscous and super-viscous substrates in healthy subjects for both supine and upright positions. We found that viscosity and position affected HRiM Chicago metrics and have potential to increase the sensitivity of esophageal manometry.

• Journal of Gastric Cancer
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• 제24권2호
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• pp.137-144
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• 2024

Purpose: Laparoscopic proximal gastrectomy (LPG) is a viable choice for treating proximal gastric lesions. However, the occurrence of severe reflux has limited its widespread adoption. To address this issue, the double flap technique (DFT), which incorporates artificial lower esophageal sphincteroplasty, has been developed to prevent reflux problems after proximal gastrectomy. In this study, we aimed to investigate the usefulness of this technique using high-resolution manometry (HRM), impedance pH monitoring, and esophagogastroduodenoscopy (EGD). Materials and Methods: The findings of pre- and postoperative 6-month HRM, pH monitoring, and EGD were compared for 9 patients who underwent LPG with DFT for various proximal gastric lesions at Incheon St. Mary's Hospital from January 2021 to December. Results: A total of 9 patients underwent proximal gastrectomy. Approximately half of the patients had Hill's grade under II preoperatively, whereas all patients had Hill's grades I and II in EGD findings. In the HRM test, there was no significant difference between distal contractile integral (1,412.46±1,168.51 vs. 852.66±495.62 mmHg·cm·s, P=0.087) and integrated relaxation pressure (12.54±8.97 vs. 8.33±11.30 mmHg, P=0.27). The average lower esophageal sphincter (LES) pressure was 29.19±14.51 mmHg preoperatively, which did not differ from 19.97±18.03 mmHg after the surgery (P=0.17). DeMeester score (7.02±6.36 vs. 21.92±36.17, P=0.21) and total acid exposure time (1.49±1.48 vs. 5.61±10.17, P=0.24) were slightly higher, but the differences were not statistically significant. Conclusions: There is no significant functional difference in HRM and impedance pH monitoring tests after DFT. DFT appears to be useful in preserving LES function following proximal gastrectomy.

• 대한후두음성언어의학회지
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• 제28권1호
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• pp.43-47
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• 2017

Laryngopharyngeal reflux disease (LPRD) is common in laryngologic practice. In Korea, up to 1 out of every 5 patients who visit otorhinolaryngology clinic is supposed to have LPRD with symptoms and physical findings. Major symptoms of LPRD include hoarseness, cough, reflux symptom and mild dysphagia. Even though LPRD is common, its diagnosis may be difficult, because its symptoms are nonspecific and the laryngeal findings are not always associated with symptom severity. In Recent study, 66.4% of Patient who has LPRD also associated with esophageal motility disorders. Esophageal achalasia is a disease of unknown etiology characterized by an absence of peristalsis in the body of esophagus and nonrelaxing hypertension of the lower esophageal sphincter. Common cause is loss of ganglion cells in Auerbachs plexus. The classic triad of symptoms in achalasia includes dysphagia, regurgitation and weight loss. LPRD and esophageal achalasia have similar symptoms but have different treatment of choice. The Differentiation diagnosis of theses disease is important and should be established by history, radiologic examination and endoscopic examination. We recently assessed a 59-year-old female patient who complained of an epigastric pain, dysphagia and chronic cough. LPRD was initially diagnosed on Laryngoscopic examination and Reflux Symptom Index, but patient was not relieved of any symptoms after treatment of Proton Pump Inhibitor for 3 months. After high resolution manometry, esophageal achalasia was finally diagnosed. We report this case regarding the diagnosis and treatment with review of literatures because we have to think about esophageal motility disorders as a differential diagnosis in laryngology.

• 대한후두음성언어의학회지
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• 제23권1호
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• pp.43-47
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• 2012

Background and Objectives : Laryngopharyngeal reflux disease (LPRD) originates from regurgitation of gastric contents to the laryngopharynx, and it is relatively common disease in otolaryngology. Proton-pump inhibitor (PPI) medication is frequently using treatment method in present time, but controversies exist regarding treatment for it. High-resolution manometry (HRM) system is a newly developed device that using 36 channels and pressure topography plotting program, checking the function and status of esophagus. The aim of this study was to evaluate clinical usefulness of HRM in LPRD patients who do not response to PPI medication. Materials and Method : From July 2009 to July 2010, a total of 99 patients who were suspected LPRD according to symptoms (Reflux Symptom Index >13) and laryngoscopic findings (Reflux Finding Score >7) were retrospectively enrolled in this study. Patients were consisted of 31 men and 68 women, the mean age was 51.8 years, the mean BMI was 22.46. Patients have taken PPI medication for 2 months, after medication, they performed HRM. Comparative analysis was performed with results of the difference in symptoms. Results : In 99 patients, 37 patients (37.4%) show not improvement of LPRD symptoms after PPI medication. Among them, 18 patients (48.6%) showed abnormal findings that were classified as Peristaltic dysfunction (38.9%), Diffuse esophageal spasm (11.1%), Relaxation impairment of LES (11.1%), Achalasia (5.6%), Hypotensive LES (11.1%), Relaxation impairment of UES (11.1%), Nutcracker esophagus (5.6%), Decreased resting pressure (5.6%). Other 62 patients (62.6%) show improvement of LPRD symptoms, 23 patients (37.1%) showed abnormal findings. Most common finding was Peristaltic dysfunction (43.4%) More prevalent abnormal findings of HRM were found in patients who revealed no response to PPI medication (48.6% vs. 37.1%), but it does not reach the statistical significance. Conclusion : Although statistical significances is not showed, the difference observed in the frequency of HRM abnormal finding between response and no response for PPI medication. It has been estimated that HRM may be used to determine differential diagnosis in patients with LPRD. Further studies in lager population containing normal controls will be needed to prove clinical usefulness.

• 대한후두음성언어의학회지
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• 제22권2호
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• pp.151-155
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• 2011

Background and Objectives : Laryngopharyngeal reflux disease (LPRD) originates from regurgitation of gastric contents to the laryngopharynx, and it is relatively common disease in otolaryngology. Proton-pump inhibitor (PPI) medication is frequently using treatment method in present time, but controversies exist regarding treatment for it. High-resolution manometry (HRM) system is a newly developed device that using 36 channels and pressure topography plotting program, checking the function and status of esophagus. The aim of this study was to evaluate clinical usefulness of HRM in LPRD patients who do not response to PPI medication. Subjects and Method : From July 2009 to July 2010, a total of 99 patients who were suspected LPRD according to symptoms (Reflux Symptom Index >13) and laryngoscopic findings (Reflux Finding Score >7) were retrospectively enrolled in this study. Patients were consisted of 31 men and 68 women, the mean age was 51.8 years, the mean BMI was 22.46. Patients have taken PPI medication for 2 months, after medication, they performed HRM. Comparative analysis was performed with results of the difference in symptoms. Results : In 99 patients, 37 patients (37.4%) show not improvement of LPRD symptoms after PPI medication. Among them, 18 patients (48.6%) showed abnormal findings that were classified as Peristaltic dysfunction (38.9%), Diffuse esophageal spasm (11.1%), Relaxation impairment of LES (11.1%), Achalasia (5.6%), Hypotensive LES (11.1%), Relaxation impairment of UES (11.1%), Nutcracker esophagus (5.6%), Decreased resting pressure (5.6%). Other 62 patients (62.6%) show improvement of LPRD symptoms, 23 patients (37.1%) showed abnormal findings. Most common finding was Peristaltic dysfunction (43.4%) More prevalent abnormal findings of HRM were found in patients who revealed no response to PPI medication (48.6% vs. 37.1%), but it does not reach the statistical significance. Conclusion : Although statistical significances is not showed, the difference observed in the frequency of HRM abnormal finding between response and no response for PPI medication. It has been estimated that HRM may be used to determine differential diagnosis in patients with LPRD. Further studies in lager population containing normal controls will be needed to prove clinical usefulness.

• Clinical Endoscopy
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• 제56권5호
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• pp.537-545
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• 2023

Achalasia is an esophageal motility disorder characterized by impaired lower esophageal sphincter relaxation and peristalsis of the esophageal body. With the increasing prevalence of achalasia, interest in the role of endoscopy in its diagnosis, treatment, and monitoring is also growing. The major diagnostic modalities for achalasia include high-resolution manometry, esophagogastroduodenoscopy, and barium esophagography. Endoscopic assessment is important for early diagnosis to rule out diseases that mimic achalasia symptoms, such as pseudo-achalasia, esophageal cancer, esophageal webs, and eosinophilic esophagitis. The major endoscopic characteristics suggestive of achalasia include a widened esophageal lumen and food residue in the esophagus. Once diagnosed, achalasia can be treated either endoscopically or surgically. The preference for endoscopic treatment is increasing owing to its minimal invasiveness. Botulinum toxins, pneumatic balloon dilation, and peroral endoscopic myotomy (POEM) are important endoscopic treatments. Previous studies have demonstrated excellent treatment outcomes for POEM, with >95% improvement in dysphagia, making POEM the mainstay treatment option for achalasia. Several studies have reported an increased risk of esophageal cancer in patients with achalasia. However, routine endoscopic surveillance remains controversial owing to the lack of sufficient data. Further studies on surveillance methods and duration are warranted to establish concordant guidelines for the endoscopic surveillance of achalasia.

• Journal of Neurogastroenterology and Motility
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• 제24권4호
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• pp.577-583
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• 2018

Background/Aims Potassium-competitive acid blockers are expected to be the next generation of drugs for the treatment of diseases caused by gastric acid. In 2015, vonoprazan fumarate, a novel potassium-competitive acid blocker, was approved by the Japanese health insurance system. Since its approval, patients refractory to vonoprazan can be encountered in clinical settings. We designed this study to clarify the pathophysiology of gastroesophageal reflux disease refractory to vonoprazan. Methods In this retrospective study, we involved patients who had refractory symptoms after administration of standard-dose proton pump inhibitors or vonoprazan and underwent diagnostic testing with esophageal high-resolution manometry and 24-hour multichannel intraluminal impedance and pH monitoring while using proton pump inhibitors or vonoprazan. Patients were diagnosed based on the Rome IV criteria for functional gastrointestinal disorders and diagnostic test results. Results Twenty-seven patients were analyzed during this study. Gastric pH ${\geq}4$ was sustained for a longer period of time, and the esophageal acid exposure time and number of acid reflux events were shorter in the vonoprazan group than in the proton pump inhibitor group. The percentage of patients diagnosed with acidic gastroesophageal reflux disease in the vonoprazan group was lower than that in the proton pump inhibitor group. Conclusions Intra-gastric pH and acid reflux were strongly suppressed by 20-mg vonoprazan. When patients with gastroesophageal reflux disease present symptoms after administration of 20-mg vonoprazan, the possibility of pathophysiologies other than acid reflux should be considered.