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1.
Dig Dis ; 41(1): 1-9, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36349754

RESUMEN

BACKGROUND: As living standards improve, more and more people are becoming overweight or obese, which has led to a gradual increase in the incidence of gastroesophageal reflux disease (GERD). Esophageal multichannel intraluminal impedance pH monitoring is a technique widely used in the clinical diagnosis of GERD. Commonly used traditional impedance parameters include acid exposure time, number of reflux episodes, symptom association probability, and symptom index. Recently, mean nocturnal baseline impedance (MNBI) and post-reflux swallow-induced peristaltic wave (PSPW) index have been proposed as novel impedance parameters to evaluate esophageal mucosal integrity and esophageal chemical clearance, respectively. It was also pointed out that the MNBI and PSPW index can improve the diagnostic value of impedance pH monitoring and predict the treatment outcome of GERD. SUMMARY: MNBI and PSPW index are objective and reliable novel impedance parameters with high applicability and reproducibility, which are able to improve the diagnostic yield of impedance pH monitoring and predict treatment outcomes in GERD patients. KEY MESSAGES: In this paper, we mainly review the research progress of the MNBI and the PSPW index in the diagnosis and treatment of GERD.


Asunto(s)
Reflujo Gastroesofágico , Humanos , Impedancia Eléctrica , Reproducibilidad de los Resultados , Reflujo Gastroesofágico/diagnóstico , Monitorización del pH Esofágico/métodos
2.
J Gastroenterol Hepatol ; 38(3): 370-377, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36478286

RESUMEN

Obesity has been a worldwide problem associated with numerous chronic diseases such as cardiovascular disease, type 2 diabetes, and metabolic disorders. It may also play a role in visceral hypersensitivity, contributing to irritable bowel syndrome. (i) Adipose tissue secretes various inflammatory mediators, causing intestinal hyperpermeability and nerve endings activation. (ii) Obesity and gastrointestinal microbiota could affect each other, and microbial metabolites can increase sensitivity of the colon. (iii) Vitamin D deficiency contributes to both fat accumulation and disruption of the intestinal mucosal barrier. (iv) Brain-gut axis may be another bridge from obesity to visceral hypersensitivity.


Asunto(s)
Diabetes Mellitus Tipo 2 , Síndrome del Colon Irritable , Humanos , Diabetes Mellitus Tipo 2/metabolismo , Intestinos , Síndrome del Colon Irritable/metabolismo , Mucosa Intestinal/metabolismo , Obesidad
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