Definition

1. Noun:
   • A congenital heart defect: An "atrial septal defect" is a type of congenital heart condition. It is characterized by a hole in the wall (septum) that separates the heart's two upper chambers, the left and right atria. This opening allows oxygen-rich blood from the left atrium to mix with oxygen-poor blood in the right atrium.

Usage

• The term "atrial septal defect" is used in medical contexts to diagnose, describe, and discuss this specific heart condition.
• It is often abbreviated as ASD.
• It is typically discussed in relation to its symptoms, diagnosis (e.g., via echocardiogram), and treatment options (e.g., catheter-based closure or surgery).

Examples

• Noun:
  • The pediatrician detected a heart murmur, which led to the diagnosis of an atrial septal defect.
  • Surgical repair is often recommended for a large atrial septal defect to prevent long-term complications.
  • Many small atrial septal defects close on their own during childhood.

Advanced Usage

• "Secundum atrial septal defect": The most common type of ASD, located in the center of the atrial septum.
• "Patent foramen ovale (PFO)": Often discussed in relation to ASD. A PFO is a small, flap-like opening between the atria that is a normal fetal structure but sometimes fails to close after birth; it is a specific type of interatrial communication.

Variants and Related Words

• ASD (abbreviation): The common acronym for atrial septal defect.
  • The cardiologist noted the patient had a history of an ASD repair.
• Septal defect (noun phrase): A broader term for any abnormal opening in a septum, which could be atrial or ventricular.
• Congenital heart defect (noun phrase): The general category of heart conditions present at birth, which includes atrial septal defect.

Synonyms

• Interatrial communication: A more general medical term for an opening between the atria.
• Atrial septal opening: A descriptive synonym.

Related Phrases

• To have an ASD repaired/closed: Refers to the medical procedure to fix the defect.
  • She had her atrial septal defect closed with a catheter device.
• ASD closure: The procedural term for repairing the defect.
  • The success rate for ASD closure is very high.

Noun

1. an abnormal opening between the left and right atria of the heart