Ewart's sign is a set of findings on
physical examination
In a physical examination, medical examination, clinical examination, or medical checkup, a medical practitioner examines a patient for any possible medical signs or symptoms of a Disease, medical condition. It generally consists of a series of ...
in people with large collections of fluid around their heart (
pericardial effusion
A pericardial effusion is an abnormal accumulation of fluid in the pericardial cavity. The pericardium is a two-part membrane surrounding the heart: the outer fibrous Connective tissue, connective membrane and an inner two-layered serous membrane ...
s).
Dullness to
percussion
A percussion instrument is a musical instrument that is sounded by being struck or scraped by a percussion mallet, beater including attached or enclosed beaters or Rattle (percussion beater), rattles struck, scraped or rubbed by hand or ...
(described historically as "woody" in quality),
egophony, and bronchial
breath sounds
Respiratory sounds, also known as lung sounds or breath sounds, are the specific sounds generated by the movement of air through the respiratory system. These may be easily audible or identified through auscultation of the respiratory system throu ...
may be appreciated at the inferior angle of the left
scapula
The scapula (: scapulae or scapulas), also known as the shoulder blade, is the bone that connects the humerus (upper arm bone) with the clavicle (collar bone). Like their connected bones, the scapulae are paired, with each scapula on either side ...
when the effusion is large enough to compress the left lower lobe of the
lung
The lungs are the primary Organ (biology), organs of the respiratory system in many animals, including humans. In mammals and most other tetrapods, two lungs are located near the Vertebral column, backbone on either side of the heart. Their ...
, causing consolidation or
atelectasis
Atelectasis is the partial collapse or closure of a lung resulting in reduced or absence in gas exchange. It is usually unilateral, affecting part or all of one lung. It is a condition where the Pulmonary alveolus, alveoli are deflated down to l ...
.
Eponym
It was first described by
William Ewart in 1896.
[W. Ewart: ''Practical aids in the diagnosis of pericardial effusion, in connection with the question as to surgical treatment.'' British Medical Journal, London, 1896, 1: 717-721.]
References
Symptoms and signs: Cardiac
{{med-sign-stub