Recurrent and atypical posterior reversible encephalopathy syndrome in a child with hypertension

Mustafa Komur1, Ali Delibas, Ali Ertug Arslankoylu

  • 1Department of Pediatric Neurology, Mersin University School of Medicine, Mersin, Turkey.

Insights

Posterior reversible encephalopathy syndrome (PRES) can lead to permanent brain damage (encephalomalacia) in children with end-stage renal disease (ESRD). Recurrent PRES episodes in ESRD patients require careful monitoring to prevent irreversible neurological deficits.

Area of Science:

  • Neurology
  • Nephrology
  • Pediatrics

Background:

  • Posterior reversible encephalopathy syndrome (PRES) is a neurological condition characterized by headache, seizures, and visual disturbances.
  • End-stage renal disease (ESRD) often leads to hypertension, a known risk factor for PRES.

Observation:

  • This case report details a child with ESRD on peritoneal dialysis who experienced recurrent PRES.
  • Following a second hypertensive crisis, the PRES findings in this patient did not resolve and progressed to encephalomalacia.

Findings:

  • This represents the first reported case of a child with ESRD developing encephalomalacia secondary to recurrent PRES.
  • The persistent PRES findings highlight the potential for irreversible brain injury in this vulnerable population.

Implications:

  • Clinicians should consider recurrent PRES in ESRD patients presenting with new neurological symptoms.
  • Early recognition and management of hypertension are crucial to prevent PRES progression and irreversible neurological damage in pediatric ESRD patients.

Related Concept Videos

Encephalitis l: Introduction01:19

Encephalitis l: Introduction

Encephalitis is inflammation of the brain parenchyma, most often due to infections or autoimmune processes. It presents with neuropsychiatric features such as fever, altered mental status, behavioral changes, cognitive dysfunction, seizures, focal deficits, and sometimes autonomic instability. In some cases, the meninges are also involved, resulting in meningoencephalitis.Infectious CausesInfectious encephalitis is most commonly viral but can also result from bacterial, fungal, or parasitic...
Cerebral Edema ll: Pathophysiology01:22

Cerebral Edema ll: Pathophysiology

Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...
Encephalitis ll: Pathophysiology01:26

Encephalitis ll: Pathophysiology

Encephalitis is inflammation of the brain parenchyma caused by direct viral invasion or immune-mediated mechanisms triggered by infections or tumors. Both processes lead to neuronal injury, disrupted neurotransmission, and diverse neurological symptoms, often with overlapping clinical and pathological features.Autoimmune EncephalitisIn autoimmune encephalitis, antibodies target neuronal antigens on cell surfaces, synapses, or within neurons. A key example is anti-NMDAR encephalitis, which can...
Hepatic Encephalopathy01:29

Hepatic Encephalopathy

DefinitionHepatic encephalopathy is a reversible neurologic syndrome that results from advanced liver dysfunction or portosystemic shunting. It leads to disturbances in cognition, behavior, and motor function due to the brain’s exposure to gut-derived toxins that the liver fails to detoxify.EtiologyThis condition develops either in the setting of acute fulminant hepatitis or progressively during chronic liver disease, such as cirrhosis and portal hypertension. Portosystemic shunting—including...
Epilepsy ll: Types01:22

Epilepsy ll: Types

Recurrent seizures, stemming from abnormal electrical activity in the brain, are the defining characteristic of epilepsy, a chronic neurological condition. Because seizure features vary greatly, epilepsy is classified using two systems: by seizure type and by epilepsy syndromes. These classifications enable clinicians to describe seizure patterns and select suitable treatment strategies.I. Classification by Seizure Type1. Focal EpilepsyFocal epilepsy begins in one hemisphere of the brain.
Increased Intracranial Pressure l: Introduction01:14

Increased Intracranial Pressure l: Introduction

Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component expands, CSF and venous blood...