Recently, multichannel intraluminal impedance (MII) monitoring was added to the repertoire of tests to evaluate the (patho)physiology of gastroesophageal reflux (GER) in children. Its advantage above the sole monitoring of the esophageal pH lies in the ability of the detection of both acid and nonacid GER and to discern between liquid and gas GER. Currently, combined 24 h pH-MII monitoring is recommended for evaluation of gastro-esophageal reflux disease (GERD) and its relation to symptoms in infants and children, despite the lack of reference values in these age groups. There is new evidence in the current issue of this Journal supporting the role of pH-MII monitoring for the evaluation of children presenting with gastrointestinal symptoms suggestive of GERD and the prediction of the presence of reflux esophagitis. However, several issues should be taken into account when performing pH-MII clinically.
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http://dx.doi.org/10.1111/nmo.12922 | DOI Listing |
Dig Endosc
January 2025
Digestive Diseases Center, Showa University Koto Toyosu Hospital, Tokyo, Japan.
Objectives: The endoscopic pressure study integrated system (EPSIS) measures intragastric pressure (IGP) during esophagogastroduodenoscopy. Previous research demonstrated that EPSIS correlates with the 24-h impedance-pH (MII-pH) test and shows lower maximum IGP (IGP-Max) and a flatter waveform gradient in gastroesophageal reflux disease (GERD) patients, attributed to lower esophageal sphincter dysfunction. Although endoscopic antireflux therapy (EARTh) is effective for GERD, the MII-pH monitoring, the gold standard for assessing treatment outcomes, requires hospitalization and can be a burden.
View Article and Find Full Text PDFDiagnostics (Basel)
December 2024
Referral Center for Pediatric Gastroenterology and Nutrition, Children's Hospital Zagreb, 10000 Zagreb, Croatia.
The relationship between symptoms of laryngopharyngeal reflux (LPR) and objective reflux measurements obtained through multichannel intraluminal impedance-pH (MII-pH) monitoring remains unclear. The aim of this study was to investigate the relationship between LPR symptoms and objective reflux episodes and possible associations between fibreoptic ENT findings, eosinophil counts, and serum IgE levels with reflux episodes detected by MII-pH. In this prospective study, MII-pH monitoring, fiberoptic laryngoscopy, nasal swabs for eosinophils, total serum IgE levels, and symptom assessment (Reflux Symptom Index, RSI) were performed in all children with suspected LPR.
View Article and Find Full Text PDFWorld J Gastroenterol
December 2024
School of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan.
Background: Diagnosing laryngopharyngeal reflux (LPR) is challenging due to overlapping symptoms. While proton pump inhibitors (PPIs) are commonly prescribed, reliable predictors of their responsiveness are unclear. Reflux monitoring technologies like dual potential of hydrogen (pH) sensors and multichannel intraluminal impedance-pH (MII-pH) could improve diagnosis.
View Article and Find Full Text PDFClin Pract
August 2024
2nd Department of Internal Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400006 Cluj-Napoca, Romania.
(1) Background: Multichannel intraluminal impedance-pH (MII-pH) monitoring is commonly used to diagnose gastroesophageal reflux disease (GERD). The mean nocturnal baseline impedance (MNBI) is an important parameter, reflecting the esophageal mucosal integrity and improvement in GERD. This study aims to evaluate the correlation between conventionally measured MNBI and a recently described simple MNBI measurement method in diagnosing pediatric GERD.
View Article and Find Full Text PDFVet Anaesth Analg
October 2024
Department of Companion Animal Clinical Studies, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa; Anaesthesia and Critical Care Services, Valley Farm Animal Hospital, Faerie Glen, Pretoria, South Africa.
Objective: To compare the sensitivity and specificity of pH with multichannel intraluminal impedance (pH-MII), pH-metry (pH) alone and MII alone to direct observation of GOR by endoscopy in anaesthetized dogs.
Study Design: A prospective comparative trial in a live canine model.
Animals: A group of 35 (22 females, 13 males) dogs of various breeds.
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