Printer Friendly VersionEmail A FriendAdd ThisIncrease Text SizeDecrease Text Size

Aspiration pneumonia

 

Definition

Aspiration pneumonia is inflammation of the lungs and airways to the lungs (bronchial tubes) from breathing in foreign material.

Alternative Names

Anaerobic pneumonia; Aspiration of vomitus; Necrotizing pneumonia; Aspiration pneumonitis

Causes

Aspiration pneumonia is caused by breathing foreign materials (usually food, liquids, vomit, or fluids from the mouth) into the lungs. This may lead to:

  • A collection of pus in the lungs (lung abscess)
  • An inflammatory reaction
  • A lung infection (pneumonia)

Aspiration of foreign material into the lungs can be caused by:

  • Anesthesia
  • Coma
  • Decreased or absent gag reflex in people who are not alert (unconscious or semi-conscious)
  • Dental problems
  • Disorders that affect normal swallowing
  • Disorders of the esophagus (esophageal stricture, gastroesophageal reflux)
  • Excessive alcohol use
  • Medications that affect alertness
  • Old age
  • Sedatives

Acidic material that is breathed into the lungs can cause severe lung injury. However, it may not necessarily lead to pneumonia.

Symptoms

Other symptoms that can occur with this disease:

Signs and tests

A physical examination may reveal crackling sounds in the lungs and a rapid pulse (heart rate).

The following tests may also help diagnose this condition:

Support Groups

Expectations (prognosis)

The outcome depends on:

  • The severity of the pneumonia
  • The type of bacteria causing the pneumonia
  • How much of the lungs are involved

If acute respiratory failure develops, the patient may have a long-term illness or die.

Many people who have aspiration pneumonia have other serious health problems, which may affect the outlook for recovery.

Calling your health care provider

Call your health care provider, go to the emergency room, or call the local emergency number (such as 911) if you have:

  • Chest pain
  • Chills
  • Fever
  • Shortness of breath
  • Wheezing
Complications
Treatments

Some people may need to be hospitalized. Treatment depends on the severity of the pneumonia. You may receive antibiotics, which treat bacteria. Some people may get special antibiotics to treat bacteria that live in the mouth.

The type of bacteria that caused the pneumonia depends on:

  • Your health
  • Where you live (at home or in a long-term nursing facility, for example)
  • Whether you've recently been hospitalized
  • Recent antibiotic use

You may need to have your swallowing function tested. Patients who have trouble swallowing may need to use other feeding methods to reduce the risk of aspiration.

Prevention
  • Avoid behaviors that may lead to aspiration, such as excessive alcohol use
  • Become aware of the risk of aspiration
References

Limper AH. Overview of pneumonia. In: Goldman L, Ausiello D. Cecil Textbook of Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 97.


Review Date: 3/17/2009
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School, Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org). URAC's accreditation program is an independent audit to verify that A.D.A.M. follows rigorous standards of quality and accountability. A.D.A.M. is among the first to achieve this important distinction for online health information and services. Learn more about A.D.A.M.'s editorial policy, editorial process and privacy policy. A.D.A.M. is also a founding member of Hi-Ethics and subscribes to the principles of the Health on the Net Foundation (www.hon.ch).
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. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- 2009 A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
MAIMONIDES
MEDICAL CENTER


Home Page
Why Choose Us
Donations
Website Terms of Use
PATIENT
INFORMATION


Visitor & Patient Info
Patient Portal
We Speak Your Language
Patient Privacy
Contact Us
KEY
INFORMATION


Find a Physician
Medical Services
Maimonides In the News
Directions & Parking
FOR HEALTH
PROFESSIONALS


Medical Education
Career Opportunities
Nurses & Physicians
Staff Intranet Access
Maimonides Medical Center    |    4802 Tenth Avenue    |    Brooklyn, NY 11219    |    718.283.6000    |