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.

Wiadomosci Lekarskie (Warsaw, Poland : 1960)
|December 21, 2019
PubMed

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.
Abstract

Related Concept Videos

Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

Acute Kidney Injury IV: Diagnostic Studies and Prevention

Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
222
Acute Kidney Injury VI: Nursing Management01:22

Acute Kidney Injury VI: Nursing Management

Acute Kidney Injury (AKI) results in an inability to maintain fluid, electrolyte, and acid-base balance. Effective nursing management is critical in improving patient outcomes and includes comprehensive patient assessment and targeted interventions.Comprehensive Patient AssessmentA detailed history collection is essential, focusing on any recent infections, nephrotoxic medication use, or chronic conditions such as hypertension and diabetes that may contribute to AKI. During the physical...
319
Acute Kidney Injury V: Interprofessional Care01:20

Acute Kidney Injury V: Interprofessional Care

Acute Kidney Injury (AKI) requires a collaborative healthcare approach to restore renal function and prevent complications. Essential management strategies involve monitoring fluid and electrolyte balance, adjusting medications, initiating dialysis when necessary, and providing nutritional support.Fluid and Electrolyte ManagementFluid Monitoring: Regularly monitoring body weight, central venous pressure, and urine output helps detect fluid imbalances early. Patient intake and output are...
238
Acute Kidney Injury II: Pathophysiology01:29

Acute Kidney Injury II: Pathophysiology

Acute kidney injury (AKI) causes are categorized into three primary categories based on the location of the injury: prerenal, intrarenal (or intrinsic), and postrenal causes. This classification guides clinical management and illustrates how different pathways can impair kidney function.Etiology and Pathophysiology of Acute Kidney Injury1. Prerenal causesEtiology: Prerenal Acute Kidney Injury, the most common type, occurs when reduced blood flow to the kidneys decreases filtration capacity...
787
Acute Kidney Injury I: Introduction01:22

Acute Kidney Injury I: Introduction

Introduction:Acute Kidney Injury (AKI) describes a swift decrease in kidney function occurring over hours to days, characterized by the kidneys' failure to remove waste products from the bloodstream. This leads to dangerous complications like metabolic acidosis, fluid overload, and electrolyte imbalances, such as hyperkalemia, which can cause life-threatening arrhythmias. AKI is common in both hospital and outpatient settings, often triggered by dehydration, sepsis, or exposure to nephrotoxic...
469
Acute Kidney Injury III: Clinical Manifestations01:29

Acute Kidney Injury III: Clinical Manifestations

Acute Kidney Injury (AKI) progresses through distinct clinical phases: the oliguric, diuretic, and recovery phases, each marked by unique manifestations and challenges.Oliguric Phase:The oliguric phase is the initial stage of AKI, typically lasting 10 to 14 days. This phase is marked by a significant reduction in urine output, usually less than 400 mL per day, indicating decreased kidney function. Fluid retention is a prominent feature, leading to symptoms such as edema, hypertension, and...
718