Gastroenterology Clinics of Mexico: consolidating a long-term editorial vision
Since its founding on July 16th, 1935, the Mexican Association of Gastroenterology (AMG) has maintained as its essential mission the dissemination of scientific knowledge in the field of gastroenterology. This vocation was early reflected in the creation of the Revista de Gastroenterología de México, first published on September 15th of that same year, which has […]
Introduction and epidemiology of irritable bowel syndrome
Introduction Within the Rome IV classification of disorders of gut-brain interaction (DGBIs) are the intestinal disorders, among which the most relevant and most extensively studied is irritable bowel syndrome (IBS). Previously, these conditions were referred to as “functional disorders,” as organic causes explaining the symptoms were excluded. However, with the advent of the Rome classification, […]
Current concepts in the pathophysiology of irritable bowel syndrome: from intestinal motility to the gut–brain axis
Introduction Irritable bowel syndrome (IBS) is a complex, multifactorial disorder in which various external factors—such as diet, GI infections, and environmental exposures—interact to trigger physiologic alterations in predisposed individuals. This susceptibility has been linked to intrinsic patient factors, including genetic predisposition, visceral hypersensitivity, altered pain perception, gut–brain axis dysfunction, food intolerances, and changes in gut […]
Irritable bowel syndrome classification and subtypes
Introduction The diagnosis of irritable bowel syndrome (IBS) is established based on symptoms, which include abdominal pain associated with a change in stool form or frequency, with the Bristol Stool Scale being very useful for characterizing stool types1 (Table 1). Symptoms usually vary in intensity and frequency, and may worsen in stressful situations. Changes in […]
Overlap of irritable bowel syndrome with other disorders of gut–brain interaction and other comorbidity
Introduction Irritable bowel syndrome (IBS) is a disorder of gut–brain interaction (DGBI), symptom-based, defined by the Rome IV criteria, and characterized primarily by recurrent abdominal pain and alterations in stool frequency or consistency1. Its global prevalence varies widely, from as low as 1% in France to nearly 35% in Mexico. It is estimated that between […]
Diagnosis of irritable bowel syndrome
Introduction Irritable bowel syndrome (IBS) is a disorder of gut–brain interaction (DGBI) whose pathophysiology is related to any combination of alterations in motility, visceral sensitivity, epithelial barrier, mucosal immune function, intestinal dysbiosis, or processing at the level of the central nervous system1. Due to its multifactorial nature, diagnosis is based on symptom criteria. In the […]
Irritable bowel syndrome and small intestinal bacterial overgrowth
Small intestinal bacterial overgrowth: cause or consequence of irritable bowel syndrome? The correlation between the etiopathogenesis of small intestinal bacterial overgrowth (SIBO) and irritable bowel syndrome (IBS) has not yet been satisfactorily clarified. Some authors support the hypothesis that SIBO is the primary event or cause, while others indicate that it is a consequence of […]
Irritable bowel syndrome and diet: evidence based nutritional strategies
Introduction to the role of diet in irritable bowel syndrome Since 70%-89% of patients with irritable bowel syndrome (IBS) report exacerbation of symptoms with certain specific foods, it is common for them to self-eliminate these foods from their diet, negatively impacting their nutritional status1. Therefore, diet is a fundamental pillar in the management of IBS. […]
Management of irritable bowel syndrome with diarrhea
Definition Irritable bowel syndrome (IBS) is a disorder of gut–brain interaction characterized by abdominal pain associated with changes in bowel habits, and it can be categorized into 4 subtypes depending on the predominant bowel pattern: IBS with diarrhea predominance (IBS-D), constipation predominance (IBS-C), mixed (IBS-M), or unclassified (IBS-U)1. IBS-D is defined, according to the Rome […]
Treatment of irritable bowel syndrome with predominance of constipation
Introduction Irritable bowel syndrome with constipation predominance (IBS-C) is one of the most common forms of IBS and the most frequently diagnosed disorder of the brain-gut interaction in clinical practice1. It is characterized by the presence of abdominal pain or discomfort accompanied by alterations in bowel habits, especially constipation, and other symptoms such as bloating, […]
