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Pyloric Obstruction01:11

Pyloric Obstruction

Pyloric obstruction, also referred to as gastric outlet obstruction, is a condition characterized by narrowing or blockage at the pylorus—the muscular valve regulating the flow of stomach contents into the duodenum. When this passage becomes impaired, the stomach cannot effectively empty its contents into the small intestine. This disruption leads to a range of gastrointestinal symptoms, including early satiety, bloating, epigastric pain, postprandial nausea, persistent vomiting, and...
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Larynx

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Esophageal Achalasia

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Updated: Jun 16, 2026

An Implantable System For Chronic In Vivo Electromyography
09:52

An Implantable System For Chronic In Vivo Electromyography

Published on: April 21, 2020

Congenital vocal cord paralysis.

Mehmet Ada1, Huseyin Isildak, Gkioukxel Saritzali

  • 1Otolaryngology Head and Neck Surgery Department, Cerrahpasa Medical School, Istanbul University, Istanbul, Turkey.

The Journal of Craniofacial Surgery
|January 26, 2010
PubMed
Summary

Congenital stridor, a rare condition presenting as loud breathing from birth, often stems from vocal cord paralysis. This study details two cases of idiopathic congenital vocal cord paralysis in infants.

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Last Updated: Jun 16, 2026

An Implantable System For Chronic In Vivo Electromyography
09:52

An Implantable System For Chronic In Vivo Electromyography

Published on: April 21, 2020

Area of Science:

  • Pediatrics
  • Otolaryngology
  • Neurology

Background:

  • Congenital stridor is a rare condition characterized by noisy breathing present from birth, typically noticed within the first 4-6 weeks of life.
  • Laryngomalacia is the most frequent cause, followed by congenital vocal cord paralysis, which can be unilateral or bilateral, congenital or acquired.
  • While often idiopathic, acquired vocal cord paralysis has numerous causes, and central nervous system abnormalities like Arnold-Chiari malformation are common congenital causes, frequently leading to bilateral paralysis.

Observation:

  • This article reports on two pediatric patients diagnosed with idiopathic congenital vocal cord paralysis.
  • One patient presented with unilateral vocal cord paralysis.
  • The second patient exhibited bilateral vocal cord paralysis.

Findings:

  • Idiopathic congenital vocal cord paralysis is a significant, though less common, cause of congenital stridor.
  • The condition can manifest as either unilateral or bilateral vocal cord dysfunction in infants.
  • The presented cases highlight the spectrum of idiopathic congenital vocal cord paralysis.

Implications:

  • Understanding the causes of congenital stridor, including idiopathic vocal cord paralysis, is crucial for timely diagnosis and management.
  • Further research into the etiology and treatment of idiopathic congenital vocal cord paralysis is warranted.
  • Accurate diagnosis of congenital vocal cord paralysis can guide appropriate interventions for affected infants.