Abstract:
:Objective The aim of this study was to obtain data on phrenic neuroconduction and electromyography of the diaphragm muscle in difficult-to-treat asthmatic patients and compare the results to those obtained in controls. Methods The study consisted of 20 difficult-to-treat asthmatic patients compared with 27 controls. Spirometry, maximal inspiratory and expiratory pressure, chest X-ray, phrenic neuroconduction and diaphragm electromyography data were obtained. Results The phrenic compound motor action potential area was reduced, compared with controls, and all the patients had normal diaphragm electromyography. Conclusion It is possible that a reduced phrenic compound motor action potential area, without electromyography abnormalities, could be related to diaphragm muscle fiber abnormalities due to overload activity.
journal_name
Arq Neuropsiquiatrjournal_title
Arquivos de neuro-psiquiatriaauthors
Maranhão AA,Rodrigues MMJ,Carvalho SRDS,Caetano MR,Compagnoni IM,Carnio TK,Ribeiro Ddoi
10.1590/0004-282x20180010subject
Has Abstractpub_date
2018-03-01 00:00:00pages
177-182issue
3eissn
0004-282Xissn
1678-4227pii
S0004-282X2018000300177journal_volume
76pub_type
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