Pregnancy SmartSite^TM

Hemothorax

Aortic rupture - c...Aortic rupture - chest X-ray
Respiratory systemRespiratory system

Previous image Enlarge Close Next image

schedule An Appointment

Definition

Hemothorax is a collection of blood in the space between the chest wall and the lung (the pleural cavity).

Causes

The most common cause of hemothorax is chest trauma. Hemothorax can also occur in people who have:

A blood clotting defect
Chest (thoracic) or heart surgery
Death of lung tissue (pulmonary infarction)
Lung or pleural cancer -- primary or secondary (metastatic, or from another site)
A tear in a blood vessel when placing a central venous catheter or when associated with severe high blood pressure
Tuberculosis

Symptoms

Symptoms include:

Shortness of breath
Rapid, shallow breathing
Chest pain
Low blood pressure (shock)
Pale, cool and clammy skin
Rapid heart rate
Restlessness
Anxiety

Exams and Tests

Your health care provider may note decreased or absent breath sounds on the affected side. Signs or findings of hemothorax may be seen on the following tests:

Chest x-ray
CT scan
Thoracentesis (drainage of pleural fluid through a needle or catheter)
Thoracostomy (drainage of pleural fluid through a chest tube)

Treatment

The goal of treatment is to get the person stable, stop the bleeding, and remove the blood and air in the pleural space.

A chest tube is inserted through the chest wall between the ribs to drain the blood and air.
It is left in place and attached to suction for several days to re-expand the lung.

If a chest tube alone does not control the bleeding, surgery (thoracotomy) may be needed to stop the bleeding.

The cause of the hemothorax will be also treated. The underlying lung may have collapsed. This can lead to breathing difficulty. In people who have had an injury, chest tube drainage may be all that is needed. Surgery may not be necessary.

WHAT TO EXPECT AT THE EMERGENCY DEPARTMENT

The provider will measure and monitor the person's vital signs, including oxygen saturation, pulse, breathing rate, and blood pressure. Symptoms will be treated as needed. The person may receive:

Breathing support -- This may include oxygen, non-invasive airway pressure support such as BIPAP, or endotracheal intubation (placement of a breathing tube through the mouth or nose into the airway) and placement on a ventilator (life support breathing machine)
Blood tests and possible blood transfusion
Chest tube (tube through the skin and muscles between the ribs into the space around the lungs) if there is lung collapse
CT scan
Analysis of the pleural fluid
Electrocardiogram (ECG)
Fluids given through the vein (IV)
Medicines to treat symptoms
X-rays of chest and abdomen or other parts of the body if there are additional injuries

Outlook (Prognosis)

The outcome depends on the cause of the hemothorax, the amount of blood loss and how quickly treatment is given.

In the case of major trauma, the outcome will additionally depend on the severity of the injury and the rate of bleeding.

Possible Complications

Complications may include:

Collapsed lung, or pneumothorax, leading to respiratory failure (inability to breathe properly)
Fibrosis or scarring of the pleural membranes and underlying lung tissue
Infection of the pleural fluid (empyema)
Shock and death in severe circumstances

When to Contact a Medical Professional

Call 911 or the local emergency number if you have:

Any potentially serious injury to the chest
Chest pain
Severe jaw, neck, shoulder or arm pain
Difficulty breathing or shortness of breath

Go to the emergency room or call the local emergency number (such as 911) if you have:

Dizziness, lightheadedness, fever and cough, or a feeling of heaviness in your chest

Prevention

Use safety measures (such as seat belts) to avoid injury. Depending on the cause, a hemothorax may not be preventable.

References

Friedberg J, Stewart SJ. Hemothorax. In: Broaddus VC, Ernst JD, King TE, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine. 7th ed. Philadelphia, PA: Elsevier; 2022:chap 113.

Raja AS. Thoracic trauma. In: Walls RM, ed. Rosen's Emergency Medicine: Concepts and Clinical Practice. 10th ed. Philadelphia, PA: Elsevier; 2023:chap 37.

Semon G, McCarthy M. Chest wall, pneumothorax, and hemothorax. In: Cameron AM, Cameron JL, eds. Current Surgical Therapy. 13th ed. Philadelphia, PA: Elsevier; 2020:1146-1150.

Schedule An Appointment

Review Date: 7/6/2022

Reviewed By: Jesse Borke, MD, CPE, FAAEM, FACEP, Attending Physician at Kaiser Permanente, Orange County, CA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. No warranty of any kind, either expressed or implied, is made as to the accuracy, reliability, timeliness, or correctness of any translations made by a third-party service of the information provided herein into any other language. © 1997- A.D.A.M., a business unit of Ebix, Inc. Any duplication or distribution of the information contained herein is strictly prohibited.