Publications by authors named "Anders Forss"

Celiac disease (CeD) has been linked to both autoimmunity and chronic liver disease, but most data on the link to primary biliary cholangitis (PBC) originate from small studies and have yielded conflicting results. A systematic search was performed in the databases of Medline, Embase, Cochrane and Web of Science Core Collection for studies published between 1990 and 2024, using search terms related to CeD, gluten and PBC. The search identified 2016 publications, of which 94 were read in full text.

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Introduction: Pancreatic exocrine insufficiency (PEI) is seen in primary pancreatic disease but has also been seen in extrapancreatic conditions including celiac disease (CeD). The symptoms of PEI and CeD often overlap, which makes diagnostics challenging. In this systematic review and meta-analysis, we aimed to investigate the prevalence of PEI in CeD.

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: Current evidence suggests that joint complaints can represent an extra-intestinal manifestation in patients with Celiac Disease (CD) without any rheumatic comorbidity. However, the prevalence of joint complaints in the context of both CD and rheumatic disease is not known. The aim of this study was to estimate the prevalence of joint complaints in patients with CD.

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During the twentieth century, inflammatory bowel disease (IBD) was considered a disease of early industrialized regions in North America, Europe and Oceania. At the turn of the twenty-first century, IBD incidence increased in newly industrialized and emerging regions in Africa, Asia and Latin America, while the prevalence in early industrialized regions continued to grow steadily. Changes in the incidence and prevalence denote the evolution of IBD across four epidemiologic stages: stage 1 (emergence), characterized by low incidence and prevalence; stage 2 (acceleration in incidence), marked by rapidly rising incidence and low prevalence; and stage 3 (compounding prevalence), where the incidence decelerates, plateaus or declines while the prevalence steadily increases.

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Background: Inflammatory bowel diseases (IBD) have been associated with an increased long-term risk of coronary artery disease due to chronic systemic inflammation.

Aim: To evaluate the risk of major adverse cardiovascular events (MACE) after coronary interventions.

Methods: In this nationwide cohort study of adults undergoing percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) (2012-2022), patients with IBD were propensity score-matched 1:10 to comparators without IBD.

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Background: Earlier studies, mainly prior to the widespread use of advanced therapy and implementation of guidelines for thromboprophylaxis indicate a doubled risk of venous thromboembolism (VTE) in patients with inflammatory bowel disease (IBD).

Methods: Using Swedish healthcare registers, we identified a population-based cohort of patients with incident IBD 2007-2021. Patients were matched by age, sex, calendar year of birth and place of residence with up to 10 reference individuals.

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Background: Statins reduce the risk of inflammatory bowel disease (IBD), however their effect on IBD disease progression is largely unknown.

Methods: We linked Swedish healthcare registers and performed a nationwide cohort study (2006-2020) of 19 788 adults (≥18 years) with ulcerative colitis (UC) and 12 582 with Crohn's disease (CD). Of these, 1733 with UC and 962 with CD were identified as incident statin users after UC or CD diagnosis.

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Background & Aims: Achalasia has been linked to increased mortality, but evidence from large population-based cohorts is scarce. We aimed to assess mortality in individuals with achalasia.

Methods: This nationwide cohort study included all adults in Sweden with incident achalasia (n = 704; 1969-2017; follow-up until December 31, 2021) without any other prior esophageal conditions.

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Introduction: Inflammatory diseases have been associated with increased risk of venous thromboembolism (VTE). However, data on VTE are lacking in large population-based cohorts of microscopic colitis (MC).

Methods: This study included all Swedish adults with incident MC without prior VTE (1990-2017; n = 12,489; follow-up until 2021).

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Background: The corticosteroid-sparing effects of ileocaecal resection have not been thoroughly investigated in a population-based cohort.

Aim: To investigate systemic corticosteroid use before and after primary ileocaecal resection in patients with Crohn's disease.

Methods: Through nationwide registries, we identified 1565 patients with Crohn's disease undergoing primary ileocaecal resection in Sweden 2006-2019.

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Background: Metabolic dysfunction-associated steatotic liver disease (MASLD) is a risk factor for cardiovascular disease. However, whether family members of individuals with MASLD also share an increased cardiovascular risk is unknown.

Methods: We created a nationwide multigenerational cohort study identifying all family members of Swedish adults diagnosed with biopsy-proven MASLD (1969-2017) and of matched general population comparators (by age, sex, calendar year, and county of residence).

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Background: Individuals with inflammatory bowel disease (IBD) are at increased risk of fracture. It is unclear if this risk varies by recent histological activity.

Aims: To determine the fracture risk in IBD during periods with and without histological inflammation.

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Background: An increased risk of cardiovascular disease (CVD) has been reported in patients with diverticular disease (DD). However, there are knowledge gaps about specific risks of each major adverse cardiovascular event (MACE) component.

Methods And Results: This nationwide cohort study included Swedish adults with DD (1987-2017, N = 52 468) without previous CVD.

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Background: Inflammatory diseases have been associated with an increased cardiovascular risk. However, data on incident major adverse cardiovascular events (MACE) from large population-based cohorts of patients with eosinophilic esophagitis (EoE) is lacking.

Methods: This study included all Swedish adults with EoE without a record of previous cardiovascular disease (CVD) (1990-2017, N = 1546) with follow-up until 2019.

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Background & Aims: Inflammatory bowel disease (IBD) is frequently accompanied by kidney complications. Potential triggers or subpopulations at high-risk of kidney problems are not well-elucidated. We hypothesized that surgical interventions, specifically colectomy, might in part explain this risk.

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Background: Acute interstitial nephritis (AIN) is a complication of drugs that may cause permanent kidney injury. AIN has been reported in patients with inflammatory bowel disease (IBD) treated with the integrin inhibitor vedolizumab. Through systematic review of existing literature, we aimed to identify and describe cases of AIN in patients with IBD treated with vedolizumab.

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Background: There are conflicting data on the risk of acute coronary syndrome (ACS) in patients with inflammatory bowel disease (IBD). Only a few previous reports include patients diagnosed during the last decade.

Aim: To assess and compare the risk of ACS between patients with IBD and the general population.

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Article Synopsis
  • - The study investigated how the COVID-19 pandemic impacted the incidence of inflammatory bowel diseases (IBD) in Israel and Sweden, two countries with different lockdown strategies.
  • - Findings revealed that IBD incidence in Israel significantly decreased during the pandemic, while Sweden experienced a slight decrease initially followed by an increase, particularly among elderly-onset patients.
  • - The research concluded that stricter lockdowns in Israel correlated with a greater reduction in IBD cases compared to Sweden, prompting a need for further research on the long-term effects of the pandemic on IBD.
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Article Synopsis
  • This study aimed to investigate the prevalence of coeliac disease (CD) among patients with systemic lupus erythematosus (SLE) through a systematic review and meta-analysis of existing literature.
  • After reviewing 2053 publications, 14 studies were ultimately included, revealing a pooled prevalence of biopsy-verified CD at 0.7% and serological markers at 3.7% among patients with SLE.
  • The conclusions indicate that the prevalence of CD in SLE patients is similar to that in the general population, suggesting that routine CD screening for SLE patients may not be necessary, though individual screening could be considered.
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Article Synopsis
  • A systematic review was conducted to investigate the prevalence of coeliac disease (CD) in patients with rheumatoid arthritis (RA) and juvenile idiopathic arthritis (JIA), analyzing data from multiple databases over several years.
  • The study included 14 publications for RA and 22 for JIA, finding that the weighted prevalence of biopsy-confirmed CD was 0.4% in RA and 1.4% in JIA, which is similar to rates in the general population.
  • The authors concluded that routine screening for CD is not necessary in RA patients, but could be considered for JIA patients with additional risk factors.
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Background & Aims: Individuals with inflammatory bowel disease (IBD) are at increased risk of serious infections, but whether this risk varies by histologic disease activity is unclear.

Methods: This was a national population-based study of 55,626 individuals diagnosed with IBD in 1990 to 2016 with longitudinal data on ileocolorectal biopsy specimens followed up through 2016. Serious infections were defined as having an inpatient infectious disease diagnosis in the Swedish National Patient Register.

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