Related Experiment Video
Updated: Jan 1, 2026

Noninvasive and Invasive Renal Hypoxia Monitoring in a Porcine Model of Hemorrhagic Shock
Published on: October 28, 2022
Hypertension in patients with acute kidney injury
Magdalena Dylewska1, Inga Chomicka1, Jolanta Małyszko1
1Department of Nephrology, Dialysis and Internal Diseases, Medical University of Warsaw, Warsaw, Poland.
Insights
Hypertension is common in acute kidney injury (AKI), with prevalence varying by cause. Post-renal AKI showed the highest hypertension rates, highlighting the need for origin-specific management.
Area of Science:
- Nephrology
- Cardiology
- Internal Medicine
Background:
- Hypertension is a known complication in chronic kidney disease (CKD).
- Limited data exist on hypertension prevalence in acute kidney injury (AKI).
Purpose of the Study:
- To determine the prevalence of hypertension in patients with AKI.
- To analyze hypertension rates based on the cause of AKI (prerenal, renal, postrenal).
Main Methods:
- Retrospective analysis of medical records for 215 AKI patients.
- Categorization of AKI causes into prerenal, renal, and postrenal.
Main Results:
- Overall hypertension prevalence in AKI was 70%.
- Highest hypertension rates observed in postrenal AKI (85%), followed by renal AKI (75%) and prerenal AKI (30%).
- 35% of patients required acute hemodialysis; these patients were older, had higher blood pressure, and needed more hypotensive medications.
Conclusions:
- Hypertension is highly prevalent in AKI, with its occurrence dependent on the AKI's origin.
- Indications for dialysis include uncontrolled hypertension, edema, and pulmonary congestion.
- Careful management during dialysis is crucial to prevent hypotensive episodes.
Objective:
Introduction: Hypertension is an overwhelming finding in chronic kidney disease (CKD), but data on hypertension prevalence in acute kidney injury (AKI) are scarce. The aim: The study aimed to assess the prevalence of hypertension in patients with AKI regarding its cause: prerenal, renal, or postrenal..
Patients And Methods:
Material and Methods: We retrospectively analyzed the medical documentation of 215 patients with AKI.
Results:
Results: Among them, 35% required acute hemodialysis due to either clinical or biochemical indications. Prevalence of hypertension was 70%, with the highest rate in post-renal AKI (85%), followed by renal AKI (75%) and pre-renal AKI (30%). Dialyzed patients were older, had higher blood pressure, and required more hypotensive drugs.
Conclusion:
Conclusions: Hypertension is prevalent in AKI; however, it depends upon its origin. Uncontrolled hypertension, together with edema and pulmonary congestion are the indications for dialysis initiation. However, caution should be exercised during dialysis to avoid hypotensive episodes.
Related Concept Videos
Acute Kidney Injury IV: Diagnostic Studies and Prevention
Acute Kidney Injury VI: Nursing Management
Acute Kidney Injury V: Interprofessional Care
Acute Kidney Injury II: Pathophysiology
Acute Kidney Injury I: Introduction
Acute Kidney Injury III: Clinical Manifestations

