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Risk of venous thromboembolism in children after general surgery
Univ Nottingham, City Hosp, Sch Med, Div Epidemiol & Publ Hlth, Nottingham NG5 1PB, England.;Karolinska Inst, Dept Med Epidemiol & Biostat, S-17177 Stockholm, Sweden..ORCID iD: 0000-0002-7071-4098
Karolinska Inst, Unit Paediat Surg, Dept Womens & Childrens Hlth, S-17177 Stockholm, Sweden..ORCID iD: 0000-0001-6638-4631
Univ Nottingham, City Hosp, Sch Med, Div Epidemiol & Publ Hlth, Nottingham NG5 1PB, England..ORCID iD: 0000-0003-4932-6135
Univ Nottingham, City Hosp, Sch Med, Div Epidemiol & Publ Hlth, Nottingham NG5 1PB, England..ORCID iD: 0000-0002-1135-9356
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2015 (English)In: Journal of Pediatric Surgery, ISSN 0022-3468, E-ISSN 1531-5037, Vol. 50, no 11, 1870-1873 p.Article in journal (Refereed) Published
Abstract [en]

Background/purpose: The purpose of the study was to determine absolute and relative rates of venous thromboembolism (VTE) following general surgical procedures in children compared to the general population. Methods: We analyzed data from all patients under the age of 18 years in the Clinical Practice Research Datalink, linked to Hospital Episode Statistics from England (2001-2011) undergoing a general surgical procedure and population controls. Crude rates of VTE and adjusted hazard ratios were calculated using Cox regression. Results: We identified 15,637 children who had a surgical procedure with 161,594 controls. Six children undergoing surgery had a VTE diagnosed in the year after compared to five children in the population cohort. The overall rate of VTE following surgery was 0.4 per 1000 person years (pyrs) (95% confidence interval [CI] 0.15-0.88) compared to 0.04 per 1000 pyrs (95% CI 0.02-0.09) in the population cohort. This represented a 9 fold increase in risk compared to the population cohort (adjusted hazard ratio [HR] 8.80; 95% CI 2.59-29.94). Conclusions: Children are at increased risk for VTE following general surgical procedures compared to the general population however the absolute risk is small and given this the benefits of thromboprophylaxis need to be balanced against the risk of complications following its use.

Place, publisher, year, edition, pages
2015. Vol. 50, no 11, 1870-1873 p.
Keyword [en]
Deep vein thrombosis, Pulmonary embolus, General surgery
National Category
Pediatrics
Identifiers
URN: urn:nbn:se:oru:diva-56381DOI: 10.1016/j.jpedsurg.2015.05.010ISI: 000367580400013PubMedID: 26078211OAI: oai:DiVA.org:oru-56381DiVA: diva2:1081991
Available from: 2017-03-15 Created: 2017-03-15 Last updated: 2017-03-15Bibliographically approved

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Humes, David J.Nordenskjold, AgnetaWalker, Alex J.West, JoeLudvigsson, Jonas F.
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