Blood Pressure Target for CKD Patients with Significant Proteinuria

Evidence-Based Rationale

The Kidney Disease: Improving Global Outcomes (KDIGO) guidelines recommend a blood pressure target of <130/80 mmHg for CKD patients with moderately to severely increased albuminuria (>30 mg/day or equivalent) 1
This recommendation is particularly relevant for patients with significant proteinuria (5 g/day), as they fall into the "severely increased" category (>300 mg/24h) 2
Subgroup analyses from major trials suggest that lower blood pressure targets may provide greater benefit specifically in patients with higher levels of proteinuria (>300 mg/day and >1000 mg/day, respectively) 3

The American College of Cardiology recommends ACE inhibitors or ARBs as first-line therapy for CKD patients with proteinuria >300 mg/24h 1, 5

The recommendation for <130/80 mmHg in proteinuric CKD is based on moderate-quality evidence, with a 2D grading in the KDIGO guidelines 1
The National Kidney Foundation suggests that while the evidence is not as robust as for the general CKD population target of <140/90 mmHg, there is consistent support across guidelines for more aggressive BP control in patients with significant proteinuria 4

The Kidney Disease: Improving Global Outcomes (KDIGO) guidelines suggest an even lower systolic BP target of <120 mmHg for most CKD patients, but note that evidence for kidney protection at this level is "almost non-existent" except possibly in patients with proteinuria 8, 5
Avoid excessive BP lowering in elderly or frail patients due to increased risk of falls, acute kidney injury, and other adverse events 7