Impact of COVID-19 on surgical patients
Official title: What Are the Effects of the Covid-19 Pandemic Among Operated Patients? A Hospital Based Cohort in Stockholm, Sweden
Run by Karolinska Institutet · NCT04525716 · Data updated 2026-11-12
This study looks at how having COVID-19 affects the recovery and hospital stay of patients who are having surgery compared to those who don’t have the virus.
Quick facts
| Study type | Observational |
|---|---|
| Sex | All |
| Enrollment | 300000 (estimated) |
| Sponsor | Karolinska Institutet Academic / other |
| Locations | 1 site (Stockholm) |
| Status | Recruiting |
| Started | January 1, 2020 |
| Main results expected | December 31, 2027 |
| Study ends | December 31, 2029 |
| Registry record updated | November 26, 2025 |
| Trial ID | NCT04525716 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include patients undergoing surgical treatment in the Stockholm Region during the study period.
✕Probably not a fit
Patients who are not undergoing surgery or those outside the Stockholm Region may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study aims to compare outcomes between patients undergoing surgery who are confirmed to have COVID-19 and those who do not have the virus. By analyzing data from electronic healthcare records and regional data systems, the study will assess various factors that may influence surgical outcomes, including complications and hospital stay duration. The goal is to enhance the understanding of how COVID-19 affects surgical management and patient care during the pandemic.
Why it matters
Potential benefit: If successful, this study could provide critical insights that improve surgical treatment strategies for patients affected by COVID-19.
How similar studies have gone: While there have been studies examining COVID-19's impact on various health conditions, this specific focus on surgical outcomes is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Patients that undergo surgical treatment in the Stockholm Region during the study period Exclusion Criteria: \-
Where it's running
-
All acute care hospitals in Region Stockholm
Stockholm, Sweden Recruiting
Study contacts
- Study coordinator: Andreas Älgå, MD, PhD
- Email: andreas.alga@ki.se
- Phone: 0702463287
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.