Acute kidney injury (AKI) refers to a sudden, unexpected decrease in kidney function, and dialysis-requiring AKI is associated with a high risk of short-term death. Its clinical and public health importance is underscored by recent studies showing a rising incidence over time. Previous studies AKI have primarily focused only on outcomes during the AKI hospitalization, with little known about long-term outcomes, including risk of development and acceleration of chronic kidney disease, death and recurrent AKI. In response to RFA-DK- 07-009 "Ancillary Studies in the Natural History of Acute Kidney Injury," we propose to establish a Clinical Center as part of the Acute Kidney Injury Natural History Consortium. We will contribute 200 case subjects who suffered AKI and 200 matched controls. Our application is an ancillary study to ongoing NIDDK-sponsored clinical studies of AKI at Kaiser Permanente of Northern California and UCSF (R01 DK67126). Our four Specific Aims are:
Aim 1 : To sequentially determine the trajectory of kidney function for up to 4 years among patients who suffer acute kidney injury compared with appropriately matched controls.
Aim 2 : To assess the risks of death, cardiovascular events and other outcomes for up to 4 years between patients who suffer acute kidney injury compared with appropriately matched controls.
Aim 3 : To identify and/or validate biomarkers or other risk assessment tools for patients who will develop or have worsening chronic kidney disease, or other significant long-term morbidity or mortality after an episode of acute kidney injury.
Aim 4 : To contribute to a new central repository to preserve the data and biological samples to share with the scientific community for future analyses and/or biomarker studies in acute kidney injury. The particular strengths of this proposal include a very experienced research team with expertise in acute and chronic kidney disease epidemiology, a strong history of successful participant recruitment and retention into long-term follow-up studies, and a unique infrastructure at Kaiser Permanente of Northern California which provide critical information about kidney function trajectory before an episode of acute kidney injury.

Agency
National Institute of Health (NIH)
Institute
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Type
Research Project--Cooperative Agreements (U01)
Project #
5U01DK082223-05
Application #
8332137
Study Section
Special Emphasis Panel (ZDK1-GRB-7 (M1))
Program Officer
Kimmel, Paul
Project Start
2008-09-01
Project End
2013-09-18
Budget Start
2012-07-01
Budget End
2013-09-18
Support Year
5
Fiscal Year
2012
Total Cost
$315,302
Indirect Cost
$91,190
Name
Kaiser Foundation Research Institute
Department
Type
DUNS #
150829349
City
Oakland
State
CA
Country
United States
Zip Code
94612
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Hsu, Chi-Yuan; Liu, Kathleen D (2014) Cardiovascular events after AKI: a new dimension. J Am Soc Nephrol 25:425-7
Hsu, Chi-yuan (2012) Yes, AKI truly leads to CKD. J Am Soc Nephrol 23:967-9
Lee, Peter; Johansen, Kirsten; Hsu, Chi-yuan (2011) End-stage renal disease preceded by rapid declines in kidney function: a case series. BMC Nephrol 12:5
Coca, Steven G; Cho, Kerry C; Hsu, Chi-yuan (2011) Acute kidney injury in the elderly: predisposition to chronic kidney disease and vice versa. Nephron Clin Pract 119 Suppl 1:c19-24
Siew, Edward D; Matheny, Michael E; Ikizler, T Alp et al. (2010) Commonly used surrogates for baseline renal function affect the classification and prognosis of acute kidney injury. Kidney Int 77:536-42
Liu, Kathleen D; Chertow, Glenn M (2010) Curbing the use of ultrasonography in the diagnosis of acute kidney injury: Penny wise or pound foolish?: Comment on "Renal ultrasonography in the evaluation of acute kidney injury". Arch Intern Med 170:1907-8
Cho, Kerry; Hsu, Chi-yuan (2010) Quantifying severity of chronic kidney disease as a risk factor for acute kidney injury. J Am Soc Nephrol 21:1602-4
Go, Alan S; Parikh, Chirag R; Ikizler, T Alp et al. (2010) The assessment, serial evaluation, and subsequent sequelae of acute kidney injury (ASSESS-AKI) study: design and methods. BMC Nephrol 11:22
Hsu, Chi-yuan (2010) Where is the epidemic in kidney disease? J Am Soc Nephrol 21:1607-11

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