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Title: Functional recovery of diaphragm paralysis: a long-term follow-up study
Authors: Gayan-Ramirez, Ghislaine * ×
Gosselin, Nadege *
Troosters, Thierry
Bruyninckx, Frans
Gosselink, Rik
Decramer, Marc #
Issue Date: Feb-2008
Publisher: Bailliè€re Tindall, in association with the British Thoracic Society
Series Title: Respiratory Medicine vol:102 issue:5 pages:690-698
Abstract: BACKGROUND: Long-term functional outcome of diaphragm paralysis is largely unknown. METHODS: A retrospective study was conducted in 23 consecutive patients (21 males, 56+/-9 years) with uni- or bilateral diaphragm paralysis to examine whether functional respiratory recovery can be predicted from the compound motor action potential (CMAP) of the diaphragm at the time of diagnosis. Pulmonary function and CMAP were evaluated at baseline and at follow-up. CMAP amplitude and latency were recorded by surface electromyography with percutaneous electrical stimulation of the phrenic nerve. Patients were followed for (median) 15 months up to 131 months (range 5-131). Functional respiratory recovery was defined as an increase in forced vital capacity >400ml. RESULTS: Functional recovery occurred in 43% of the patients after 12 months (10 out of 23) and in 52% after 24 months (12 out of 23). Type and etiology of paralysis did not influence recovery. CMAP, anthropometric characteristics and baseline pulmonary function did not predict functional respiratory recovery. Whether respiratory muscle training improved pulmonary function is uncertain. Moreover, it did not result in a greater percentage functional respiratory recovery. Relapse after an initial improvement was observed in 26% of the patients. CONCLUSIONS: The present study indicates that functional recovery of diaphragm paralysis is difficult to predict and may occur years after the onset of the paralysis.
ISSN: 0954-6111
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Research Group for Cardiovascular and Respiratory Rehabilitation
Pneumology
* (joint) first author
× corresponding author
# (joint) last author

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