Publications by authors named "Olafur Palsson"

Background: Disorders of gut-brain interactions (DGBI) affect more women, and marital quality may have been a factor that explains clinical manifestations of DGBI-however, the mechanism is unclear. This study aimed to elucidate supported relationships between DGBI with marital quality and clinical attributes in married Malay women.

Methods: This cross-sectional study involved married Malay women with functional dyspepsia (FD), irritable bowel syndrome (IBS), and FD-IBS overlap per Rome IV criteria.

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Background: Disorders of gut-brain interaction (DGBI) predominate in women, but little is known about sex differences in menses-related or menopause symptoms.

Methods: Using data from the Rome Foundation Global Epidemiology Survey, we assessed Rome IV DGBI symptoms in individuals in 26 countries who met criteria for ≥ 1 of 5 DGBI: irritable bowel syndrome (IBS), functional dyspepsia (FD), functional constipation (FC), functional diarrhea (FDr), or functional bloating (FB). Participants included pre- and post-menopausal women with DGBI and age-matched men.

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Article Synopsis
  • The study aimed to evaluate the retention rates and remission outcomes of patients with axial spondyloarthritis (axSpA) and psoriatic arthritis (PsA) who started treatment with secukinumab over 24 and 48 months.
  • Data was collected from 13 European registries, revealing that retention rates were around 51%-64%, and patients with no prior biologic treatments showed better outcomes compared to those with previous treatments.
  • The findings suggest that secukinumab remains effective over four years, with higher success rates in treatment-naïve patients compared to those who had already tried other therapies.
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Background: The knowledge and proficiency of primary care practitioners (PCPs) in diagnosing and managing irritable bowel syndrome (IBS) remain generally low and variable internationally. This variability is partly due to a lack of familiarity with the Rome Foundation diagnostic criteria and treatment guidelines for this condition.

Methods: We conducted an electronic survey of PCPs in the United States and nine European countries to assess their understanding of IBS pathophysiology; the use of Rome IV criteria in diagnosis, knowledge of and frequency in prescribing various recommended treatments; and the likelihood of referring patients with suspected IBS to subspecialists.

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Background: A high prevalence of disorders of gut-brain interaction (DGBI) exist in patients with hypermobile Ehlers-Danlos Syndrome (hEDS) and hypermobility spectrum disorders (HSD). However, it is unknown if clusters of hEDS/HSD patients exist which overlap with different DGBIs and whether this overlap influences presence of comorbidities and quality of life. We aimed to study these knowledge gaps.

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Objectives: To re-evaluate cut-offs for disease activity states according to the Axial Spondyloarthritis Disease Activity Score (ASDAS), and study the impact of sex, age, calendar time, disease and symptom duration on ASDAS and ASDAS cut-offs in a large contemporary cohort.

Methods: Data from 2939 patients with axial spondyloarthritis (axSpA) starting their first tumour necrosis factor inhibitor in nine European registries were pooled and analysed. Receiver operating characteristic analyses were performed to identify cut-offs against external criteria.

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Article Synopsis
  • The study explores Disorders of Gut Brain Interaction (DGBI), which are gastrointestinal issues linked with psychological conditions, highlighting that current diagnostic criteria (Rome IV) ignore psychological symptoms.
  • Using data from the Rome Foundation Global Epidemiology Study, researchers applied latent profile models to find how individuals with GI symptoms cluster when considering both GI and psychological symptoms versus GI symptoms alone.
  • Results showed a high degree of similarity in clustering, suggesting that incorporating psychological traits into DGBI classification could lead to more accurate and nuanced categorization of individuals with these disorders.
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  • The article highlights that while clinical hypnosis shows promising results in outcomes research, it remains underutilized in healthcare, necessitating high-quality evidence for broader acceptance.
  • It outlines best practice guidelines for conducting and reporting clinical hypnosis research, categorized into two tiers: Tier I focuses on essential practices like detailed intervention manuals and clear measurement reporting.
  • Tier II includes preferred practices such as monitoring adherence to home practice and assessing participants across the hypnotizability spectrum to enhance research effectiveness.
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Background: Irritable bowel syndrome (IBS) and functional dyspepsia (FD) are common disorders of gut-brain interaction (DGBI). The Rome IV criteria are the gold standard for research when diagnosing DGBI. However, bothersomeness, or the degree to which symptoms are distressing or disruptive to a person's daily life, is a potential treatment-seeking motivator that is not assessed by the Rome criteria.

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Introduction: Cyclic vomiting syndrome (CVS) is a disorder of gut-brain interaction of unknown origin. The aim of this study was to evaluate the global prevalence of this disorder and its associated factors.

Methods: Data were collected from nationwide Internet surveys in 26 countries, with subjects evenly distributed by age, sex, and country.

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Introduction: Disorders of gut-brain interaction (DGBI) are symptom-based disorders categorized by anatomic location but have high overlap and heterogeneity. Viewing DGBI symptoms on a spectrum (i.e.

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Article Synopsis
  • The study aimed to explore sex differences in patient-reported outcomes (PROMs) among patients with axial spondyloarthritis (axSpA) starting their first tumor necrosis factor inhibitor (TNFi).
  • Data from 15 registries were analyzed, focusing on changes in BASDAI and BASFI scores over 24 months using linear mixed models.
  • Results indicated that women reported significantly worse outcomes than men, with the sex differences in scores nearly doubling after 6 months, and baseline characteristics such as HLA-B27 positivity and disease duration helped explain some but not all of the differences.
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Background: Patients with organic gastrointestinal (GI) diseases and diabetes mellitus (DM) can have concomitant disorders of gut-brain interaction (DGBI).

Objective: This study aimed to compare the global prevalence of DGBI-compatible symptom profiles in adults with and without self-reported organic GI diseases or DM.

Methods: Data were collected in a population-based internet survey in 26 countries, the Rome Foundation Global Epidemiology Study (n = 54,127).

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Background & Aims: Current classification systems for irritable bowel syndrome (IBS) based on bowel habit do not consider psychological impact. We validated a classification model in a UK population with confirmed IBS, using latent class analysis, incorporating psychological factors. We applied this model in the Rome Foundation Global Epidemiological Survey (RFGES), assessing impact of IBS on the individual and the health care system, and examining reproducibility.

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Background: Most previous reports on the prevalence of disorders of gut-brain interaction (DGBI) show higher rates in younger individuals. Exceptions are faecal incontinence and functional constipation.

Aim: To compare prevalence rates for 22 DGBI and 24 primary symptoms, by age, using the Rome Foundation Global Epidemiology (RFGES) study dataset.

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Introduction: Cyclic vomiting syndrome (CVS) is a disorder of gut-brain interaction often triggered by stress. Interventions such as meditation may improve psychological outcomes and health-related quality of life (HRQoL), but their efficacy and the underlying mechanism are unknown.

Methods: We conducted a 6-week single-arm pilot study to assess the effects of heartfulness meditation (HFM) in CVS using a custom-designed meditation app.

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Objective: Using the large Rome Foundation Global Epidemiology Survey dataset, the aim of this study was to evaluate the construct and convergent validity and internal consistency of the PHQ-4 across both gastrointestinal and non-gastrointestinal condition cohorts. Another aim was to provide descriptive information about the PHQ-4 including means, confidence intervals and percentage of caseness using a large representative sample.

Methods: A cross-sectional survey was conducted in 26 countries.

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Background: The Rome Foundation Global Epidemiology Study (RFGES) found that 40.3% of adults in 26 internet-surveyed countries met Rome IV criteria for disorders of gut-brain interaction (DGBI). However, additional people not meeting DGBI criteria may also be burdened by frequent gastrointestinal symptoms.

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A 72-year-old woman presented to the emergency department due to worsening dyspnea. She had been diagnosed with asthma a year earlier. At arrival, her oxygen saturation was only 84%.

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Background & Aims: Acute enteric infections are well known to result in long-term gastrointestinal (GI) disorders. Although COVID-19 is principally a respiratory illness, it demonstrates significant GI tropism, possibly predisposing to prolonged gut manifestations. We aimed to examine the long-term GI impact of hospitalization with COVID-19.

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Background: Migraine is a prevalent disabling condition often associated with comorbid physical and psychological symptoms that contribute to impaired quality of life and disability. Studies suggest that increasing dietary omega-3 fatty acid is associated with headache reduction, but less is known about the effects on quality of life in migraine.

Methods: After a 4-week run-in, 182 adults with 5-20 migraine days per month were randomized to one of the 3 arms for sixteen weeks.

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