Dyspnea definition and partner's syndrome

 Dyspnea — Definition

Dyspnea is a subjective experience of breathing discomfort or an unpleasant awareness of breathing, characterized by qualitatively distinct sensations that vary in intensity.

 

Ortner syndrome (Cardiovocal syndrome)

Ortner syndrome is hoarseness of voice due to left recurrent laryngeal nerve palsy caused by cardiovascular disease, classically left atrial enlargement from mitral stenosis.

Mechanism:

Cardiovascular enlargement/compression → left recurrent laryngeal nerve compression → unilateral vocal cord palsy → hoarseness.

Causes

Classically:

Mitral stenosis with left atrial enlargement

Pulmonary hypertension

Aortic arch aneurysm

Aortic dissection

Left atrial/ventricular enlargement

Pulmonary artery aneurysm or dilatation

Why left side?

The left recurrent laryngeal nerve loops under the aortic arch, near the ligamentum arteriosum, making it vulnerable to compression by enlarged cardiovascular structures.