1. Effect of Intensive Blood Pressure Control on Kidney Outcomes: Long-Term Electronic Health Record-Based Post-Trial Follow-Up of SPRINT.
- Author
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Drawz PE, Lenoir KM, Rai NK, Rastogi A, Chu CD, Rahbari-Oskoui FF, Whelton PK, Thomas G, McWilliams A, Agarwal AK, Suarez MM, Dobre M, Powell J, Rocco MV, Lash JP, Oparil S, Raj DS, Dwyer JP, Rahman M, Soman S, Townsend RR, Pemu P, Horwitz E, Ix JH, Tuot DS, Ishani A, and Pajewski NM
- Subjects
- Humans, Male, Female, Middle Aged, Aged, Follow-Up Studies, Time Factors, Kidney physiopathology, Kidney drug effects, Treatment Outcome, Electronic Health Records, Glomerular Filtration Rate, Creatinine blood, Antihypertensive Agents therapeutic use, Hypertension drug therapy, Hypertension physiopathology, Blood Pressure drug effects
- Abstract
Background: Intensive BP lowering in the Systolic Blood Pressure Intervention Trial (SPRINT) produced acute decreases in kidney function and higher risk for AKI. We evaluated the effect of intensive BP lowering on long-term changes in kidney function using trial and outpatient electronic health record (EHR) creatinine values., Methods: SPRINT data were linked with EHR data from 49 (of 102) study sites. The primary outcome was the total slope of decline in eGFR for the intervention phase and the post-trial slope of decline during the observation phase using trial and outpatient EHR values. Secondary outcomes included a ≥30% decline in eGFR to <60 ml/min per 1.73 m 2 and a ≥50% decline in eGFR or kidney failure among participants with baseline eGFR ≥60 and <60 ml/min per 1.73 m 2 , respectively., Results: EHR creatinine values were available for a median of 8.3 years for 3041 participants. The total slope of decline in eGFR during the intervention phase was -0.67 ml/min per 1.73 m 2 per year (95% confidence interval [CI], -0.79 to -0.56) in the standard treatment group and -0.96 ml/min per 1.73 m 2 per year (95% CI, -1.08 to -0.85) in the intensive treatment group ( P < 0.001). The slopes were not significantly different during the observation phase: -1.02 ml/min per 1.73 m 2 per year (95% CI, -1.24 to -0.81) in the standard group and -0.85 ml/min per 1.73 m 2 per year (95% CI, -1.07 to -0.64) in the intensive group. Among participants without CKD at baseline, intensive treatment was associated with higher risk of a ≥30% decline in eGFR during the intervention (hazard ratio, 3.27; 95% CI, 2.43 to 4.40), but not during the postintervention observation phase. In those with CKD at baseline, intensive treatment was associated with a higher hazard of eGFR decline only during the intervention phase (hazard ratio, 1.95; 95% CI, 1.03 to 3.70)., Conclusions: Intensive BP lowering was associated with a steeper total slope of decline in eGFR and higher risk for kidney events during the intervention phase of the trial, but not during the postintervention observation phase., (Copyright © 2023 by the American Society of Nephrology.)
- Published
- 2024
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