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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Diaphragm kinetics during pneumatic belt respiratory assistance: A sonographic study in Duchenne muscular dystrophy
Neuromuscular Disorders, Volume 12, No. 6, Year 2002
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Description
The principal aim of this study was to demonstrate the usefulness of M-mode sonography as a noninvasive technique to evaluate diaphragm excursion. The secondary aim was to assess the efficacy of pneumatic abdomino-diaphragmatic belt ventilation in patients with Duchenne muscular dystrophy. Using M-mode sonography, we measured the amplitude of diaphragm excursion in seven patients with Duchenne muscular dystrophy in various positions (0°, 45°, 75°) with and without pneumatic abdomino-diaphragmatic belt respiratory assistance. The belt significantly increased mean amplitude of diaphragm excursion by 62% at 45° and by 55% at 75°, and increased mean tidal volume by 43.5% at 45° and by 49% at 75°. Two patients were unable to tolerate the horizontal position (0°) During quiet breathing without the belt, amplitude of diaphragm excursion and tidal volume were positively correlated at 45° (r=0.81; P=0.027) and 75° (r=0.75; P=0.05). There was a significant intra-individual correlation between these two parameters during belt use but no inter-individual correlation. Without the belt, thoracic posture had no significant effect on amplitude of diaphragm excursion, either in quiet or deep breathing. After overnight respiratory assistance, arterial oxygen pressure and arterial oxygen saturation increased significantly, and arterial carbon dioxide pressure decreased from 52±6.4 to 46.4±4 mmHg. The pneumatic abdomino-diaphragmatic belt significantly improved gas exchanges and ventilation by increasing diaphragm excursion, as was clearly shown by noninvasive M-mode sonography. Indeed, M-mode sonography may be helpful in pneumatic abdomino-diaphragmatic belt pressure adjustment. © 2002 Elsevier Science B.V. All rights reserved.
Authors & Co-Authors
Ayoub, Jean
France, Tours
Hopital Trousseau
France, Nimes
Centre Hospitalier Universitaire de Nîmes
Milane, J.
France, Montpellier
Centre Hospitalier Universitaire de Montpellier
Targhetta, R.
France, Nimes
Centre Hospitalier Universitaire de Nîmes
Prioux, Jacques
France, Montpellier
Centre Hospitalier Universitaire de Montpellier
Chamari, K.
Tunisia
National Center of Sports Medicine
Arbeille, Philippe Louis
France, Tours
Hopital Trousseau
Jonquet, Olivier
France, Montpellier
Centre Hospitalier Universitaire de Montpellier
Bourgeois, J. M.
France, Nimes
Centre Hospitalier Universitaire de Nîmes
Préfaut, Christian G.
France, Montpellier
Centre Hospitalier Universitaire de Montpellier
Statistics
Citations: 20
Authors: 9
Affiliations: 4
Identifiers
Doi:
10.1016/S0960-8966(02)00003-2
ISSN:
09608966
Research Areas
Disability
Environmental
Study Approach
Qualitative