intradialysis hypertension

Hypertension during dialysis, often observed as elevated blood pressure throughout hemodialysis sessions, can be attributed to several factors, including fluid overload, electrolyte imbalances, and the activation of the renin-angiotensin system.

The primary cause is typically fluid overload, where an excess accumulation of water in the body increases cardiac strain and blood pressure. Electrolyte imbalances, particularly involving sodium and potassium, can also lead to blood pressure fluctuations. Additionally, the activation of the renin-angiotensin system during dialysis contributes significantly by promoting vasoconstriction, which in turn raises blood pressure. Other less common factors include excessively high temperatures of the dialysis fluid and poor biocompatibility of dialysis membranes, both of which may trigger symptoms of hypertension during dialysis.

For managing hypertension during dialysis, it is advised that patients adhere to their physician's guidance, monitor their blood pressure regularly, and adjust their diet and fluid intake as recommended by their doctor. Patients should also avoid altering their medication dosage without consultation and seek medical attention promptly if they experience discomfort.