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Primary alveolar hypoventilation

 

Definition

Primary alveolar hypoventilation is a rare disorder of unknown cause in which a person does not take enough breaths per minute. The lungs and airways are normal.

Alternative Names

Ondine's curse

Causes

The cause is unknown. Current research is looking at how the brains of persons with this disease may be less responsive to carbon dioxide.

The disease primarily affects men 20 to 50 years old. It can also be present in male children.

Symptoms

Often patients themselves do not complain of being short of breath during the day. Symptoms are usually worse during sleep, and periods of apnea (episodes of stopped breathing) are usually present. Patients with this disease are extremely sensitive to even small doses of sedatives or narcotics, which can make their already inadequate breathing much worse.

Symptoms include:

Signs and tests

The health care provider will perform a physical exam. Tests will be done to rule out other causes. For example, muscular dystrophy can make the rib muscles weak, and emphysema damages the lung tissue itself. A small stroke can affect the breathing center in the brain.

Tests that may be done include:

Support Groups

Expectations (prognosis)

Response to treatment varies.

Calling your health care provider

Call for an appointment with your health care provider if symptoms of this disorder develop. Seek urgent medical care if bluish skin (cyanosis) occurs.

Complications

A possible complication is cor pulmonale (right-sided heart failure).

Treatments

Medications that stimulate the respiratory system may be used but do not always work. Mechanical devices that assist breathing, particularly at night, may be helpful in some patients. Oxygen therapy may be helpful in a few patients, but may cause worse night symptoms in others.

Prevention

There is no known prevention. Patients should avoid using sleeping medications or other medications that may cause drowsiness.

References

Phillipson EA, Duffin J. Hypoventilation and hyperventilation syndromes. In: Mason RJ, Murray J, VC Broaddus, Nadel J, eds. Textbook of Respiratory Medicine. 3rd ed. Philadelphia, Pa: Saunders Elsevier; 2005:chap 73.


Review Date: 9/2/2008
Reviewed By: Sean O. Stitham, MD, private practice in Internal Medicine, Seattle, Washington; and Benjamin Medoff, MD, Assistant Professor of Medicine, Harvard Medical School, Pulmonary and Critical Care Unit, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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