Share |

Diseasereference.net - Comprehensive articles covering over 1,700 topics. The articles are organized by the disease, condition overview, symptoms, treatment, and prevention.

Drugs search, click the first letter of a drug name:
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | 1 | 2 | 3 | 4 | 5 | 6 | 8 | 9

Terms search, click the first letter of a term name:
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Online medical services

Medical dictionary Med-Terms.net is a searchable dictionary of medical terms from medicine and related fields. Search for medical terms with our medical dictionary.

Drugs & Medications Search our drug database for comprehensive prescription and patient information on 24,000 drugs online. Drugspedia.net - The Internet Drug Index for prescription drugs and medications.

PMS blog Premenstrual syndrome (PMS), PMS headache

Blue waffles disease, blog. Blue waffle infection, blue waffle disease pictures.



Disease Reference

Click on the first letter in the disease name:

| 4 | 5 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z




Emphysema is a lung disease that involves damage to the air sacs (alveoli) in the lungs. The air sacs are unable to completely deflate, and are therefore unable to fill with fresh air to ensure adequate oxygen supply to the body.


Cigarette smoking is the most common cause of emphysema. Tobacco smoke and other pollutants are thought to cause the release of chemicals from within the lungs that damage the walls of the air sacs. This damage becomes worse over time, affecting the exchange of oxygen and carbon dioxide in the lungs.

A naturally occurring substance in the lungs called alpha-1 antitrypsin may protect against this damage. People with alpha-1 antitrypsin deficiency are at an increased risk for this disease.


  • Shortness of breath
  • Chronic cough with or without sputum production
  • Wheezing
  • Decreased ability to exercise
Additional symptoms that may be associated with this disease include the following:
  • Anxiety
  • Unintentional weight loss
  • Ankle, feet, and leg swelling
  • Fatigue

Exams and Tests

A physical examination may show wheezing, decreased breath sounds, or prolonged exhalation (exhalation takes more than twice as long as inspiration). The chest may be barrel-shaped. There may be signs of chronically insufficient oxygen levels in the blood.

These tests help confirm the diagnosis:

  • Pulmonary function tests
  • Chest x-ray
  • Arterial blood gases showing low levels of oxygen in the blood (hypoxemia), and high levels of carbon dioxide (respiratory acidosis)

This disease may also alter the results of the following tests:

  • Pulmonary ventilation/perfusion scan
  • Chest CT scan


Smoking cessation is the most important and effective treatment. Only quitting smoking can stop the progression of lung damage once it has started. Medications used to improve breathing include bronchodilators (hand-held inhaler or nebulizer), diuretics, and corticosteroids. Antibiotics may be prescribed when respiratory infections occur. Influenza (flu) vaccines and Pneumovax (pneumonia vaccine) are recommended for people with emphysema.

Low-flow oxygen can be used during exertion, continuously, or at night. Pulmonary rehabilitation can improve exercise tolerance and quality of life in the short-term. Lung transplantation is an option for patients with severe disease.

Carefully selected patients may be eligible for lung reduction surgery. This procedure removes the damaged portions of the lung, which allows the normal portions of the lung to expand more fully and take advantage of increased aeration. When successful, those who undergo the surgery report improvement in walking distance and quality of life.

Support Groups

Contact the American Lung Association  for a support group near you.

Outlook (Prognosis)

The outcome is better for patients with less damage to the lung. Prognosis is largely determined by initial shortness of breath, exercise tolerance, and results from lung function tests (spirometry). Death may occur from respiratory failure, pneumonia, or other complications.

Possible Complications

  • Recurrent respiratory infections
  • Pulmonary hypertension
  • Cor pulmonale (enlargement and strain on the right side of the heart)
  • Erythrocytosis (increased red blood cell count)
  • Death

When to Contact a Medical Professional

Call your health care provider if you develop symptoms of emphysema.

If you know you have emphysema, call your health care provider if breathing difficulty, cough, sputum production or fever develops or changes.


Avoiding smoking -- or quitting if you do smoke -- can greatly decrease risk for this disease.

Email to a Friend

Your Name:

Friend's Email:

More about Emphysema - Drugs.com
Asthma - occupational exposure
Adrenocortical carcinoma
Air around the lung
Chest infection
Abnormal heart rhythms
Acute HIV infection
Absent menses

Medical dictionary | Natural mosquito repellents | Dust mites pictures | Prescription Drug Information | new 401k rules | Hyperkeratosis pilaris treatment
© Copyright by Diseasereference.net 2006-2007. All rights reserved