Clinical trial NCT02424747: Long-term Survival and Renal Outcomes in Critically Ill Patients After Acute Kidney Injury: Swedish Multi-centre Cohort Study
Official title: Long Term Survival and Renal Outcomes in Critically Ill Patients After Acute Kidney Injury: Swedish Multi-centre Cohort Study
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Acute Kidney Injury
Lead sponsor: Karolinska Institutet
Sponsor class: OTHER
Collaborators: name: Region Stockholm
name: Baxter Healthcare Corporation
First posted: 2015-04-23
Enrollment: 103000
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: The study population was provided by the Swedish Intensive Care register and included patients receiving intensive care treatment between January 2005 and January 2011

Brief summary: The study evaluates how outcome varies among critically ill patients with and without acute kidney injury. Data from the Swedish Intensive care register and other Swedish national registers is used to compare how survival and post discharge renal function differ between critically ill patients with and without acute kidney injury.

Detailed description: Background: Acute kidney injury is common amongst intensive care patients and is associated with extremely high mortality and morbidity in terms of increased risk of developing Chronic Kidney Disease (CKD) and End Stage Renal Disease (ESRD). Patients with CKD are at increased risk of cardiovascular, cerebro-vascular disease and long term increased risk of death. Those patients who progress to ESRD have a 20% mortality risk per year in Sweden. Outcome after acute kidney injury in the Swedish critical care population has never previously been described.

Method: This cohort study uses Swedish national healthcare registers to investigate the epidemiology of acute kidney injury. The Swedish Intensive Care Register (SIR) provides the population base, with data extraction between 2005 and 2011. The information obtained is cross-matched by the Swedish board for health and welfare (Social Styrelsen) with other national registries. All data are returned anonymized and individual patients can not be identified in any way. Additionally analysis is performed on a group and not on an individual basis. The key to this data is held by Swedish board for health and welfare. The other national registries include the Swedish Cause of Death Register (Dödsregister), the Swedish renal register (Svensknjurregistret) and the in and out-patients registers (Öppen- slutenvårdsregister) these are used to obtain data on all cause mortality, co-morbidities, Pre and Post ICU CKD and ESRD. Epidemiological methods are used to analyse the data.

Investigators aim to describe outcome in terms of long-term mortality (up to five years) and renal morbidity (incidence of CKD and ESRD) in critically ill patients with and without de novo AKI in Sweden.

Eligibility criteria: Inclusion Criteria:

All first admissions of adult patients registered on the Swedish Intensive Care Register between January 1st 2005 and January 1st 2011.

Exclusion Criteria:

Patients under 18. Subjects with incomplete records. Patients previously diagnosed with Chronic Kidney Disease or End Stage Renal disease.

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Primary outcomes:
measure: Mortality
timeFrame: 5 year
Secondary outcomes:
measure: Incidence of Chronic Kidney Disease
timeFrame: 5 years
measure: Incidence of End Stage Renal Failure
timeFrame: 5 years
Other outcomes:
Locations:
Study officials:
affiliation: karolinska University Hospital, Karolinska Institute
name: Claire Stigare, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Goldstein SL, Jaber BL, Faubel S, Chawla LS; Acute Kidney Injury Advisory Group of American Society of Nephrology. AKI transition of care: a potential opportunity to detect and prevent CKD. Clin J Am Soc Nephrol. 2013 Mar;8(3):476-83. doi: 10.2215/CJN.12101112.
citation: Bellomo R. The epidemiology of acute renal failure: 1975 versus 2005. Curr Opin Crit Care. 2006 Dec;12(6):557-60. doi: 10.1097/01.ccx.0000247443.86628.68.
citation: Rimes-Stigare C, Awad A, Martensson J, Martling CR, Bell M. Long-term outcome after acute renal replacement therapy: a narrative review. Acta Anaesthesiol Scand. 2012 Feb;56(2):138-46. doi: 10.1111/j.1399-6576.2011.02567.x. Epub 2011 Oct 19.
citation: Go AS, Chertow GM, Fan D, McCulloch CE, Hsu CY. Chronic kidney disease and the risks of death, cardiovascular events, and hospitalization. N Engl J Med. 2004 Sep 23;351(13):1296-305. doi: 10.1056/NEJMoa041031.
citation: Bellomo R, Kellum JA, Ronco C. Acute kidney injury. Lancet. 2012 Aug 25;380(9843):756-66. doi: 10.1016/S0140-6736(11)61454-2. Epub 2012 May 21.
citation: Emilsson L, Lindahl B, Koster M, Lambe M, Ludvigsson JF. Review of 103 Swedish Healthcare Quality Registries. J Intern Med. 2015 Jan;277(1):94-136. doi: 10.1111/joim.12303. Epub 2014 Sep 27.
citation: Adami HO, Hernan MA. Learning how to improve healthcare delivery: the Swedish Quality Registers. J Intern Med. 2015 Jan;277(1):87-9. doi: 10.1111/joim.12315. Epub 2014 Nov 24. No abstract available.
citation: Rimes-Stigare C, Frumento P, Bottai M, Martensson J, Martling CR, Bell M. Long-term mortality and risk factors for development of end-stage renal disease in critically ill patients with and without chronic kidney disease. Crit Care. 2015 Nov 3;19:383. doi: 10.1186/s13054-015-1101-8.