Spiesshoefer, Jens ORCID: 0000-0001-8205-1749, Henke, Carolin, Herkenrath, Simon, Brix, Tobias, Randerath, Winfried, Young, Peter and Boentert, Matthias (2019). Transdiapragmatic pressure and contractile properties of the diaphragm following magnetic stimulation. Respir. Physiol. Neuro., 266. S. 47 - 54. AMSTERDAM: ELSEVIER SCIENCE BV. ISSN 1878-1519

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Abstract

Insufficient normal values exist regarding twitch transdiaphragmatic pressure (twPdi) derived from standardized cervical and cortical magnetic stimulation (MS) of the diaphragm. Therefore, 63 subjects (24 men, 39 women; 34 13 years) underwent transcortical and posterior cervical MS of the diaphragm with simultaneous recording of twitch oesophageal and gastric pressures (twPes, twPgas). Following cortical MS at functional residual capacity, twPdi amplitudes showed high intra-individual variability which was markedly reduced when an inspiratory pressure trigger was applied. Lower limit of the 95% confidence interval computed around the mean value (LLN) was 12 cmH(2)O, independent of gender or age. Following cervical MS of the phrenic nerves, twPdi amplitudes were well reproducible and unaffected by gender, but age-dependent (age 18-30: LLN 23 cmH(2)O; age 30: LLN 16 cmH(2)O; p < 0.05). The inspiratory pathway can be assessed using cervical MS of the phrenic nerves. If transcranial motor cortex stimulation of the diaphragm is also applied, a standardized inspiratory pressure trigger is recommended. Dynamics of diaphragm contraction appear to be age-dependent.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Spiesshoefer, JensUNSPECIFIEDorcid.org/0000-0001-8205-1749UNSPECIFIED
Henke, CarolinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Herkenrath, SimonUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Brix, TobiasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Randerath, WinfriedUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Young, PeterUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Boentert, MatthiasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-134243
DOI: 10.1016/j.resp.2019.04.011
Journal or Publication Title: Respir. Physiol. Neuro.
Volume: 266
Page Range: S. 47 - 54
Date: 2019
Publisher: ELSEVIER SCIENCE BV
Place of Publication: AMSTERDAM
ISSN: 1878-1519
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
PHRENIC-NERVE STIMULATION; MOTOR CORTICAL REPRESENTATION; TWITCH MOUTH PRESSURE; RELAXATION RATE; LUNG-VOLUME; STRENGTH; FATIGUE; ACTIVATIONMultiple languages
Physiology; Respiratory SystemMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/13424

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