The effect of chronic nausea on gastric slow wave spatiotemporal dynamics in children.

Autor: Somarajan S; Department of General Surgery, Vanderbilt University Medical Center, Nashville, TN, USA.; Department of Physics & Astronomy, Vanderbilt University, TN, USA., Muszynski ND; Department of General Surgery, Vanderbilt University Medical Center, Nashville, TN, USA.; Department of Physics & Astronomy, Vanderbilt University, TN, USA., Olson JD; Department of General Surgery, Vanderbilt University Medical Center, Nashville, TN, USA., Comstock A; Department of General Surgery, Vanderbilt University Medical Center, Nashville, TN, USA.; Department of Physics, Lipscomb University, Nashville, TN, USA., Russell AC; Division of Pediatric Gastroenterology, Vanderbilt University Medical Center, Nashville, TN, USA., Walker LS; Division of Adolescent Medicine, Vanderbilt University School of Medicine, Nashville, TN, USA., Acra SA; Division of Pediatric Gastroenterology, Vanderbilt University Medical Center, Nashville, TN, USA., Bradshaw LA; Department of General Surgery, Vanderbilt University Medical Center, Nashville, TN, USA.; Department of Physics & Astronomy, Vanderbilt University, TN, USA.; Department of Physics, Lipscomb University, Nashville, TN, USA.
Jazyk: angličtina
Zdroj: Neurogastroenterology and motility : the official journal of the European Gastrointestinal Motility Society [Neurogastroenterol Motil] 2021 May; Vol. 33 (5), pp. e14035. Date of Electronic Publication: 2020 Nov 20.
DOI: 10.1111/nmo.14035
Abstrakt: Background: Chronic nausea in adolescents with functional gastrointestinal disorders is an increasingly reported but poorly understood symptom that negatively affects quality of life. Functional gastrointestinal disorders are known to correlate closely with slow wave rhythm disturbances. The ability to characterize gastric electrophysiologic perturbations in functional nausea patients could provide potential diagnostic and therapeutic tools for nausea patients.
Methods: We used high-resolution electrogastrograms (HR-EGG) to measure gastric slow wave parameters in pediatric chronic nausea patients and healthy subjects both pre- and postprandial. We computed the dominant frequency, percentage power distribution, gastric slow wave propagation direction, and speed from HR-EGG.
Key Results: We observed significant differences in the dominant frequency and power distributed in normal and bradyarrhythmia frequency ranges when comparing patients and healthy subjects. Propagation patterns in healthy subjects were predominantly anterograde, while patients exhibited a variety of abnormalities including retrograde, anterograde, and disrupted patterns. There was a significant difference in the preprandial mean slow wave direction between healthy subjects (222° ± 22°) and patients (103° ± 66°; p ˂ 0.01), although the postprandial mean direction between healthy subjects and patients was similar (p = 0.73). No significant difference in slow wave propagation speed was found between patients and healthy subjects in either pre- (p = 0.21) or postprandial periods (p = 0.75).
Conclusions and Inferences: The spatiotemporal characterization of gastric slow wave activity using HR-EGG distinguishes symptomatic chronic nausea patients from healthy subjects. This characterization may in turn inform and direct clinical decision-making and lead to further insight into its pathophysiology.
(© 2020 John Wiley & Sons Ltd.)
Databáze: MEDLINE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje