Methacholine challenge testing - Safety of low starting FEV1

被引:25
作者
Martin, RJ [1 ]
Wanger, JS [1 ]
Irvin, CG [1 ]
Bartelson, BB [1 ]
Cherniack, RM [1 ]
Drazen, JM [1 ]
Israel, E [1 ]
Martin, RJ [1 ]
Szefler, SJ [1 ]
Chinchilli, VM [1 ]
Mauger, EA [1 ]
Lemanske, RF [1 ]
Sorkness, C [1 ]
Ford, JG [1 ]
McLean, D [1 ]
Nochman, S [1 ]
Fish, JE [1 ]
Peters, SP [1 ]
Boushey, HA [1 ]
Lazarus, SC [1 ]
Fahy, J [1 ]
Cherniack, RR [1 ]
Hurd, SS [1 ]
机构
[1] NATL JEWISH CTR IMMUNOL & RESP MED,DENVER,CO 80206
关键词
asthma; methacholine challenge; safety; starting FEV1;
D O I
10.1378/chest.112.1.53
中图分类号
R4 [临床医学];
学科分类号
1002 ; 100602 ;
摘要
Study objective: The lower limit for the baseline value to initiate methacholine bronchial hyperresponsiveness testing has not been well established. Recommendations have varied from > 1 L to above 80% of predicted. The objective was to determine if an FEV1 < 60% predicted was acceptable. Design: Retrospective analysis of challenges in 88 patients with a baseline FEV1 of <60% predicted (mean=45.8%; range, 22 to 59%. Setting: Academic institutions. Results: There were only four individuals whose FEV1 did not return to >90% of baseline following one poststudy beta(2)-agonist treatment. All four responded to a second treatment. There were no adverse sequelae following challenge in any individual. Neither age (up to 79 years) nor gender influenced outcome. Conclusions: In chronic moderate to severe asthma, it appears that bronchial hyperresponsiveness testing can be safely performed even in those patients with a low baseline FEV1.
引用
收藏
页码:53 / 56
页数:4
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