Definition

Noun: * An abnormal enlargement of the heart. This is a medical term synonymous with cardiomegaly.

Usage

• The term "megacardia" is used in medical contexts to describe a heart that is larger than normal, as observed through imaging techniques like X-rays or echocardiograms. It refers to the physical state of the organ itself.
• Example: "The chest X-ray revealed signs of megacardia, prompting further cardiac investigation."

Advanced Usage

• The condition can be described in degrees (e.g., mild, moderate, severe megacardia).
• Example: "While megacardia is often a sign of disease, mild megacardia is common and typically benign in well-trained athletes due to physiological adaptation."

Variants and Related Words

• Cardiomegaly (n): The more commonly used clinical synonym for megacardia.
• Megalocardia (n): A less common variant spelling with the same meaning.
• -megaly: A suffix meaning "enlargement," as seen in hepatomegaly (liver enlargement) or splenomegaly (spleen enlargement).

Synonyms

• Cardiomegaly
• Enlarged heart

Word Origin and Notes

• Origin: From the Greek (large, great) + (heart).
• Important Note: "Megacardia" describes the symptom of an enlarged heart, not a specific disease. It is a finding that results from various underlying conditions, such as hypertension, heart valve problems, or cardiomyopathies. Its significance depends entirely on the cause and context.

Noun

1. an abnormal enlargement of the heart
   • mild cardiomegaly is common in athletes