Pneumothorax
A pneumothorax is a collection of air
outside the lung but within the pleural
cavity.
It occurs when air accumulates
between the parietal and visceral
pleurae inside the chest.
The air accumulation can apply
pressure on the lung and make it
collapse.
Air can enter the pleural space by two
mechanisms, either by trauma causing
communication through the chest wall
or from the lung by rupture of the
visceral pleura.
A primary spontaneous pneumothorax
(PSP) occurs automatically without a
known eliciting event, while a
secondary spontaneous
pneumothorax (SSP) occurs after an
underlying pulmonary disease.
A traumatic pneumothorax can be the
result of blunt or penetrating trauma.
A simple pneumothorax does not shift
the mediastinal structures, as does a
tension pneumothorax.
Open pneumothorax is an open
wound in the chest wall through which
air moves in and out.
II. Rupture of emphysematous bulla.
III. Rupture of lung abscess or
tuberculosis lesion into pleural
cavity.
a The chest radiography image shows a large lucency occupying the right upper thorax with mediastinal shift and
patchy opacities of the left apical area. b The coronal computed tomography image shows giant bullae occupying
the right thorax and multiple opacities over the left upper lung
Other causes
Penetrating rib fracture
Penetrating wounds
Accidental opening of pleural cavity
during abdominal surgery
Penetration of pleura during central
venous pressure catheter insertion.
Physical findings
The most common symptoms are:
Chest pain
Shortness of breath.
The chest pain is pleuritic, sharp,
severe, and radiates to the ipsilateral
shoulder.
On examination, the following findings are
noted:
Diminished chest movement
Absence of breath sound over apex of
effected lung.
Respiratory discomfort
Increased respiratory rate
Asymmetrical lung expansion
Decreased tactile fremitus
Hyper resonant percussion note
Decreased intensity of breath sounds or
absent breath sounds
In tension pneumothorax following
additional findings are seen:
Tachycardia of more than 134 beats
per minute
Hypotension
Jugular venous distension
Cyanosis
Respiratory failure
Cardiac arrest
Treatment
A small pneumothorax requires few
days of bed rest until it resolves.
A large pneumothorax (›25 percent of
pleural space is filled with air) is
treated with needle aspiration or by an
intercostal drain.
Pleurodesis or pleurectomy may
indicated for recurrent pneumothorax.
PT-Treatment
Expansion breathing exercise to
reexpand the lung.
Shoulder ROM exercises to maintain
shoulder, shoulder girdle and thoracic
mobility