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Chronic Cough: Retrospective Evaluation of 472 Cases FREE TO VIEW

Elie Fiss, MD*; Alberto A. Monteiro Filho, MD; Regina M. Carvalho Pinto, MD; Adriano C. Guazzelli, MD
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Faculdade de Medicina do ABC, Sao Paulo, Brazil


Chest. 2004;126(4_MeetingAbstracts):907S. doi:10.1378/chest.126.4_MeetingAbstracts.907S-a
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PURPOSE:  Cough is a very frequent symptom and is considered a very common cause of visits to the doctor. It causes great discomfort and should not been treatded without investigation of its cause. When cough lasts three or more weeks it can be called chronic cough. It is an essencial defense mechanism to protect the airways and to facilitate the drainage of airways secretions.But couhging in not always a protective mechanism and may be the first manifestation of a disease in several parts of the body, not only in the chest, requiring investigation and treatment. Some studies demonstrated that the association of bronchial hyperreativity, sinusitis and gastroesophageal reflux account for aproximately 90% of teh causes of chronic cough (pathogenic triad in chronic couhg ). In order to achieve success in diagnosing patients with chronic cough, a well-defined protocol should be followed to investigate it. Our study analises retropectively the causes of chronic cough in 472 patients who seek medical attention for chronic cough.

METHODS:  Using an algorithm focusing on the most common causes of chronic cough we examined the date of 472 patients who underwent to a medical attention because of chronic cough and whose identification of the factors of cough and institution of adjust treatment results in a successful therapy.

RESULTS:  The analyses of the results showed this correlation : pos-nasal drip syndrome : 310 (65,7%), gastroesophageal reflux : 58 (12,3%) and asthma : 40 (8,5%). The less frequent causes appeared in 11,4% and 8,0% did not do all exams.

CONCLUSION:  In our patients the three most common causes of chronic cough were post-nasal drip syndrome ( 65,7%), gastroesophageal reflux disease (12,3%) and asthma (8,5%), with a total of 86,5% of the patients with one of the components of the pathogenic triad of chronic cough.

CLINICAL IMPLICATIONS:  The proposal of an algorith focusing of the most common causes of chronic cough may be helpful in this initial approach.

DISCLOSURE:  E. Fiss, None.

Wednesday, October 27, 2004

12:30 PM - 2:00 PM




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