Crohn’s Disease Early Treatment Questioned – Swedish Study
- A new study from the Karolinska Institutet casts doubt on recent Danish research suggesting early surgery is superior to medical treatment for Crohn's disease.
- "Its a comparison of apples and pears," explained Ola Olén.The swedish researchers found that when they replicated the Danish study's definitions,they achieved similar results.
- Olén cautioned against interpreting the Danish work as definitive proof that early operation is the better course of action.
Swedish Study Questions Danish Findings on Early CrohnS Disease Surgery
Table of Contents
A new study from the Karolinska Institutet casts doubt on recent Danish research suggesting early surgery is superior to medical treatment for Crohn’s disease. Ola Olén, chief physician and associate professor of medicine at Karolinska Institutet’s Department of Medicine Solna, led the Swedish research team. The findings, published september 11, 2025, in Clinical Gastroenterology and Hepatology, indicate the Danish results may be due to differing study designs.
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Ola Olén, chief physician and associate professor of medicine, Solna, Karolinska Institutet Photo: Sös Hospital Doctors
Comparison of Methodologies
“Its a comparison of apples and pears,” explained Ola Olén.The swedish researchers found that when they replicated the Danish study’s definitions,they achieved similar results. However, when employing stricter definitions-more closely mirroring the original study’s parameters-they observed no meaningful difference between early surgical intervention and medical treatment with tumor necrosis factor inhibitors.
Interpreting the Results
Olén cautioned against interpreting the Danish work as definitive proof that early operation is the better course of action. “It may well be so, but the data we have simply cannot answer that question at present,” he stated.The study highlights the importance of standardized methodologies in comparative research.
Collaboration and Funding
The research was a collaborative effort involving researchers from Linköping University and the University of Copenhagen. Funding was provided by the Swedish Research Council and ALF funds from the Stockholm Region. Researchers reported no conflicts of interest.
Publication Details
The full study, “Early ileocecal resection or tumor necrosis factor inhibitor in Crohn’s disease: Replication in a Swedish cohort” by Mads Damsgaard Wewer, jonas Söderling, Jonas F Ludvigsson, Pär Myrelid, johan Burisch, and ola Olén, is available in Clinical Gastroenterology and Hepatology. The DOI is 10.1016/j.cgh.2025.07.046.