[The relationship between respiratory threshold to acetylcholine and prognosis for asthma].
Forty nine asthmatic children were studied to clarify the relationship between the respiratory threshold of acetylcholine (RT-Ach) and the prognosis for asthma. In those patients who had asthmatic attacks fewer than 60 days in the last year, there was a statistically significant relationship between RT-Ach and the number of the days of asthmatic attacks over the 6 and 12 month periods following the inhalation test. In the younger group (5-11 years old), there was a statistically significant relationship between RT-Ach and the number of the days of asthmatic attacks over the 6 and 12 month periods following the inhalation test. However, in the elder group (12-15 years old), no such relationship was recognized. In the elder group, the obstructive index, one of the indices of flow-volume curve, had a statistically significant correlation with the number of asthmatic attacks over the 6 and 12 month periods following the inhalation test. However in the younger group, no such relationship was recognized.
Odajima
H
H
Department of Pediatrics, National Minami Fukuoka Chest Hospital.
Baba
M
M
D000109:Acetylcholine; D000293:Adolescent; D000367:Age Factors; D001249:Asthma / Q000175:diagnosis*; D001985:Bronchial Provocation Tests; D002648:Child; D002675:Child, Preschool; D004056:Differential Threshold; D005260:Female; D006801:Humans; D008297:Male; D011379:Prognosis
D000109:Acetylcholine