Effects of the Rome IV Criteria to Functional Dyspepsia Symptoms in Saudi Arabia: Epidemiology and Clinical Practice

Epidemiology of Disorders of the Gut-Brain Interaction: An Appraisal of the Rome IV Criteria and Beyond

Disorders of the gut-brain interaction (DGBIs) are presently classified into mutually exclusive anatomical area-related symptom-based categories according to the Rome IV criteria. The pathophysiology of visceral nociception, which contributes to the wide range of symptoms of DGBIs, involves complex psychobiological processes arising from the bidirectional interactions of multiple systems at the gut and brain levels, which affect symptom expression and illness behaviors. The attitude toward an illness and expression of pain and bowel habit vary across cultures with variable interpretation based on sociocultural beliefs, which may not tally with the medical definitions. Thus, psychological factors impact DGBI definitions, their severity and health care utilization. Due to the poor localization and multisegment referral of visceral pain, the anatomical site of pain may not correspond to the affected segment, and there may be a variable degree of overlap among symptoms. The somewhat restrictively defined Rome IV criteria assume one-to-one correlation of symptoms with underlying pathophysiology and ignore overlapping DGBIs, nonstandardized symptom categories, and change or shift in category over time. The microorganic nature of DGBIs resulting from systemic, metabolic or motility disorders, gut dysbiosis and inflammation are not addressed in the Rome IV criteria. Although there is a multidimensional clinical profile that does address these factors, it is not followed rigorously in practice. Threshold changes for diagnostic criteria or addition/deletion of symptoms leads to wide variation among different DGBI criteria resulting in uncertain comparability of results. Although the Rome IV criteria are excellent for research studies and therapeutic trials in homogenous populations, further improvement is needed for their wider applicability in clinical practice.

Global prevalence of functional dyspepsia according to Rome criteria, 1990-2020: a systematic review and meta-analysis

Although functional dyspepsia (FD) is a common functional gastroduodenal disorder with a high socioeconomic burden, little is known about its global prevalence. Thus, we performed a comprehensive study to estimate long-term trends in the prevalence of FD. We searched PubMed/MEDLINE, Embase, and Google Scholar from 1990 to 2022 for population-based studies that reported the prevalence of FD in adults (≥ 18 years old) according to Rome I, II, III, or IV criteria. The prevalence of FD was extracted from included studies to obtain pooled prevalence with 95% confidence intervals (CI) and 95% prediction intervals. Subgroup analysis was performed according to certain characteristics, including geographic region. A total of 44 studies met the eligibility criteria, including 256,915 participants from 40 countries across six continents. The overall global pooled prevalence of FD was 8.4% (95% CI 7.4-.9.5). The prevalence was the highest in Rome I (11.9%; 95% CI 5.1-25.4) and lowest in Rome IV (6.8%; 95% CI 5.8-7.9). Developing countries showed a higher prevalence than developed countries (9.1% versus 8.0%), and prevalence was higher in women, irrespective of the definition used (9.0% versus 7.0%). The pooled prevalence gradually decreased from 1990 to 2020 (12.4% [8.2-18.3] in 1990-2002 versus 7.3% [6.1-8.7] in 2013-2020). The prevalence of FD differs by country, economic status, geographical region, and sex, and the global prevalence has been gradually declining. Despite the heterogeneity of sample population, our study estimates the current global burden of FD and provides information to heath care policy decisions.

Overlap Between Gastroesophageal Reflux Disease and Irritable Bowel Syndrome and Its Impact on Quality of Life

Background Gastroesophageal reflux disease (GERD) and irritable bowel syndrome (IBS) are common gastrointestinal disorders that can negatively affect quality of life and healthcare costs. The co-occurrence of these conditions can lead to more complex symptomatology and therapeutic challenges. Therefore, understanding the extent of overlap between GERD and IBS is paramount. This study aims to estimate the overlap between GERD and IBS in Saudi Arabia and its impact on quality of life. Methods Patients with GERD at primary care clinics at King Khalid University Hospital in Riyadh, Saudi Arabia, were the subjects of cross-sectional research. The patients were selected using a simple random sampling technique, and an electronic questionnaire was utilized to collect data. Symptoms of IBS were assessed based on Rome IV criteria, and quality of life was evaluated using the GERD quality of life tool. Results Of the 293 GERD patients, the prevalence of co-occurrence of IBS among GERD patients was 35.8%. The GERD health-related quality of life (GERD- HRQL) scores ranged from 0 to 50, with a median and interquartile range (IQR) of 14 (8.5-20). Those with GERD and IBS had a significantly higher GERD-HRQL score than the patients with GERD alone (11 vs. 9, p-value: 0.049). Furthermore, patients with GERD and IBS had a significantly higher GERD-HRQL score than the patients with IBS alone (15 vs. 11, p-value: 0.001). Of the total participants, 29.4% reported having abdominal pain in the last three months. The majority of the participants (55.6%) reported experiencing abdominal pain one to two times per week, while 22.2% reported experiencing it two to three days per month. Conclusion The high prevalence of IBS co-existence among GERD patients highlights the importance of considering both diseases in clinical practice to improve patient outcomes. The study also found that patients with both GERD and IBS had a significantly lower quality of life than those with GERD or IBS alone.

Epidemiology, Risk Factors for Gastric Cancer and Surveillance of Premalignant Gastric Lesions: A Prospective Cohort Study of Central Saudi Arabia

(1) Background: Saudi Arabia (SA) is a country with a low incidence of gastric cancer (GC). In this study, we sought to assess the epidemiology of GC, its clinicopathological profiles, and its association with risk factors as well as to identify premalignant gastric lesions (PGL) and examine neoplastic progression. (2) Methods: This five-year prospective study screened for GC and PGL in asymptomatic Saudi patients, aged 45-75 years (n = 35,640) and living in Al Kharj, Riyadh province in central SA. Those who were positive in a high-sensitivity guaiac fecal occult blood test (HSgFOBT+) and had negative results in colonoscopy offered to undergo upper GI endoscopy (n = 1242). Factors associated with GC were examined. (3) Results: The five-year participation rate was 87% (1080/1242). The incidence rate of GC was 26.9 new cases per 100,000 population per year (9.6 new cases per year/total population at risk-35,640), and it was 8.9 cases per 1000 persons per year among the 1080 subjects with HSgFOBT+ and negative colonoscopy results. The five-year mortality rate was 67% among patients with GC (n = 48), 3.0% among participants in the gastric screening program (n = 1080) and 0.09% among the original population participating in the colorectal screening program (n = 35,640). Intestinal-type adenocarcinoma was the most frequent type (77%), with the tumor most commonly located in the antrum (41%). Overall, 334 participants had PGL, and seven of them (2.1%) showed neoplastic progression to GC during the follow-up. Factors associated with GC were age, Helicobacter pylori (HP) infection, obesity (body mass index BMI > 30), smoking, a diet of salty preserved foods, low income and a family history of GC. (4) Conclusions: The incidence of GC is low in central SA, but screening for PGL and GC among patients with HSgFOBT+ and negative colonoscopy may prevent or result in the early treatment of GC. HP eradication, normal body weight, not smoking and adhering to a healthy diet can reduce the risk of GC. The resulting data provide important input for the improvement of national guidelines.

Regional and seasonal variations in functional abdominal pain and functional constipation prevalence among Saudi children

Objectives

This study aimed to evaluate functional abdominal pain disorders and functional constipation prevalence in the central region of Saudi Arabia, and compare it to that of the western region.

Methods

This was a cross-sectional study using online questionnaires targeting the general population of Riyadh region of Saudi Arabia. Subjects were randomly selected by sharing links on social media groups. Any parent with a 3-18-year-old child was included, and children with chronic medical illnesses or symptoms of organic GI disorders were excluded.

Results

Three hundred nineteen subjects were included in the final analysis; the prevalence of functional abdominal pain disorders overall was 6.2% and the prevalence of functional constipation was 8.1%.

Conclusions

Functional constipation diagnosis seems to be affected by life stressors or a previous viral illness. Seasonal variations had minimal effect on functional abdominal pain disorder and functional constipation symptom frequency and severity.

The Effect of Using Rome IV Criteria on the Prevalence of Functional Abdominal Pain Disorders and Functional Constipation among Children of the Western Region of Saudi Arabia

Functional gastrointestinal disorders are characterized by absence of anatomical and biochemical alterations, and are diagnosed and classified based on symptomatology. We aim to explore the prevalence of functional abdominal pain disorders and Functional constipation using Rome IV criteria. An online questionnaire was distributed randomly via social media targeting the general population of the western region of Saudi Arabia. Parents who have at least 1 child in the age group 3 to 18 years were included. Children with mental disabilities, or any organic gastrointestinal disorder were excluded. Five hundred thirty-two responded and 215 were excluded. The overall prevalence of functional abdominal pain disorders was 3.1%. The prevalence of functional constipation was 4.7%. Conclusions: Rome IV criteria seems to give a lower functional abdominal pain prevalence than Rome III, online learning did not seem to affect the prevalence of both disorders, but a family stressor seems to increase functional constipation prevalence.