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OBJECTIVE To clarify the role of bronchospasm in impairment of bronchial permeability in chronic bronchitis. METHODS Lung capacity (LC), forced lung capacity (FLC), forced expiration volume for 1 second (FEV1), FEV1/LC%, peak volume rate (PVS), maximal volume expiration rate (MVER) at the level of 25, 50 and 75% of LC were measured in 62 patients with chronic obstructive bronchitis before and after inhalation of 1 dose of berotec and 1 dose of atrovent. RESULTS Bronchospasm was present in 42% of the patients, being the only cause of obstruction in 5% of patients. Other reasons added in 37%. Bronchospasm contribution to obstruction reached 21-40, 41-80, 81-100% in 5, 10 and 27% of patients, respectively. CONCLUSIONS An important role of bronchospasm in development of bronchial obstruction in chronic bronchitis is proved.
V B Nefedov, and
E A Shergina
January 1999,
Problemy tuberkuleza,
V B Nefedov, and
E A Shergina
April 1975,
Zeitschrift fur Erkrankungen der Atmungsorgane,
V B Nefedov, and
E A Shergina
April 1978,
Schweizerische medizinische Wochenschrift,
V B Nefedov, and
E A Shergina
January 2001,
Problemy tuberkuleza,
V B Nefedov, and
E A Shergina
January 1973,
Bulletin de physio-pathologie respiratoire,
V B Nefedov, and
E A Shergina
January 1971,
Allergie und Immunologie,
V B Nefedov, and
E A Shergina
July 1982,
La Clinica terapeutica,
V B Nefedov, and
E A Shergina
September 1973,
Orvosi hetilap,
V B Nefedov, and
E A Shergina
June 1968,
Archives of physical medicine and rehabilitation,
V B Nefedov, and
E A Shergina
January 2020,
Wiadomosci lekarskie (Warsaw, Poland : 1960),
