Intradialytic Hypotension Management

Guideline Recommendations

The National Kidney Foundation recommends the use of Trendelenburg position as a routine measure for treating intradialytic hypotension (IDH) in hemodialysis patients, in combination with other interventions 1
The K/DOQI Clinical Practice Guidelines suggest that routine measures for the treatment of IDH include the use of Trendelenburg's position and saline boluses to increase the systolic blood pressure to 100-110 mm Hg 1

Patients with diabetic CKD Stage 5, especially those with autonomic dysfunction, are at increased risk for IDH and may require more frequent use of Trendelenburg positioning 1
Patients with cardiovascular disease, including left ventricular hypertrophy, diastolic dysfunction, or systolic heart failure, are at increased risk for IDH 2
Patients with predialysis systolic blood pressure <100 mmHg, patients ≥65 years of age, patients requiring high-volume ultrafiltration, and patients with severe anemia or poor nutritional status are also at increased risk for IDH 1

Trendelenburg positioning should be part of a multimodal approach to manage IDH, including saline boluses to achieve systolic blood pressure 100-110 mmHg 1
Dialysate temperature modification, such as using low-temperature dialysate (35-35.5°C), can improve vascular reactivity and cardiac contractility while reducing IDH frequency and intensity 1
Treatment time optimization, including prescribing minimum 3 hours per session for patients with residual kidney function <2 mL/min, can help reduce IDH frequency 3
Sodium and volume management, including reducing dietary sodium intake and prescribing ultrafiltration rates that balance achieving euvolemia with minimizing hemodynamic instability, can help reduce IDH frequency 3
Pharmacologic interventions, such as midodrine, can improve nadir systolic blood pressure, but may have potential increased cardiovascular risk with chronic use 2

Patients should be assessed for signs of orthostatic hypotension before discharging from the dialysis unit, even if blood pressure normalized with Trendelenburg positioning during treatment 1
Recurrent episodes of IDH requiring frequent positioning should trigger reassessment of the overall dialysis prescription and preventive strategies 1, 3