"Stress" polycythaemia and peripheral facial palsy complications of severe hypertension

Insights

Severe hypertension in an infant caused recurrent polycythemia and peripheral facial palsy. Controlling blood pressure resolved these neurological and hematological issues, highlighting the need for hypertension screening in facial palsy cases.

Area of Science:

  • Pediatric Neurology
  • Clinical Hematology
  • Cardiovascular Medicine

Background:

  • Peripheral facial palsy is a common neurological deficit in children.
  • Hypertension is a significant risk factor for various vascular and neurological complications.
  • Polycythemia, an elevated red blood cell count, can have diverse etiologies.

Observation:

  • An 11-month-old boy presented with recurrent episodes of generalized convulsions and peripheral facial palsy.
  • Both episodes were associated with polycythemia and severe, unexplained hypertension.
  • Neurological deficits, including facial palsy, resolved with hypertension management.

Findings:

  • The polycythemia was attributed to contracted plasma volume secondary to severe hypertension.
  • Peripheral facial palsy was likely caused by a facial canal thrombus, evidenced by preserved hearing and lacrimation.
  • Effective control of hypertension led to the resolution of facial palsy and normalization of hematocrit.

Implications:

  • This case underscores a potential link between severe hypertension and recurrent peripheral facial palsy in pediatric patients.
  • Routine blood pressure monitoring is crucial in the diagnostic workup of children presenting with peripheral facial palsy.
  • Early identification and management of hypertension can prevent serious neurological and hematological complications.

Related Concept Videos

Alterations in Blood Pressure01:30

Alterations in Blood Pressure

Alterations in blood pressure, such as hypertension (high blood pressure) and hypotension (low blood pressure), significantly affect human health. Understanding these conditions' classifications, causes, and symptoms is essential for effective management and treatment.
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart beats)...
Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
Peripheral Artery Disease I: Introduction01:30

Peripheral Artery Disease I: Introduction

Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
Hemodialysis II: Procedure and Complications01:24

Hemodialysis II: Procedure and Complications

DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...
Portal Hypertension01:22

Portal Hypertension

Portal hypertension is an increase in blood pressure within the portal venous system. Normally, this pressure is less than 5 mmHg. It is considered clinically significant when it rises above 10 mmHg. At this threshold, complications from altered blood flow and venous congestion emerge.EtiologyPortal hypertension arises from conditions that impede blood flow through the liver. The most common cause is cirrhosis, in which chronic liver injury leads to fibrotic scarring. This fibrosis narrows or...