Reproducibility of twitch and sniff transdiaphragmatic pressures
Twitch transdiaphragmatic pressure (Tw Pdi) measured with magnetic stimulation of the phrenic nerve is used to follow up patients and to assess the effect of clinical treatments on diaphragm function. However the reproducibility of Tw Pdi on different occasions has been little studied. We investigat...
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| Veröffentlicht in: | Respiratory physiology & neurobiology 2002-09, Vol.132 (3), p.301-306 |
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| creator | Luo, Y.M Hart, N Mustfa, N Man, W.D.C Rafferty, G.F Polkey, M.I Moxham, J |
| description | Twitch transdiaphragmatic pressure (Tw Pdi) measured with magnetic stimulation of the phrenic nerve is used to follow up patients and to assess the effect of clinical treatments on diaphragm function. However the reproducibility of Tw Pdi on different occasions has been little studied. We investigated 32 normal subjects, measuring Tw Pdi elicited by bilateral magnetic stimulation of the phrenic nerves on two to 14 occasions. Sniff transdiaphragmatic pressure (sniff Pdi) was also measured. The mean value of Tw Pdi and sniff Pdi were 28±5 and 134±24 cm H
2O, respectively. The within subjects coefficient of variation was 11% for both Tw Pdi and sniff Pdi. We conclude that there is a variability of Tw Pdi and the variability of Tw Pdi is the same as that of sniff Pdi. |
| doi_str_mv | 10.1016/S1569-9048(02)00115-5 |
| format | Article |
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2O, respectively. The within subjects coefficient of variation was 11% for both Tw Pdi and sniff Pdi. We conclude that there is a variability of Tw Pdi and the variability of Tw Pdi is the same as that of sniff Pdi.</description><subject>Biological and medical sciences</subject><subject>Birth control</subject><subject>Diaphragm - innervation</subject><subject>Diaphragm - physiology</subject><subject>Electric Stimulation - methods</subject><subject>Electromagnetic Phenomena</subject><subject>Gynecology. Andrology. Obstetrics</subject><subject>Humans</subject><subject>Inspiratory Capacity</subject><subject>Mammals, Humans</subject><subject>Medical sciences</subject><subject>Methods, magnetic stimulation, diaphragm</subject><subject>Muscle Contraction - physiology</subject><subject>Muscle, diaphragm, magnetic stimulation</subject><subject>Nerve, phrenic</subject><subject>Other methods of contraception. Sterilization</subject><subject>Phrenic Nerve - physiology</subject><subject>Pressure</subject><subject>Pressure, twitch, transdiaphragmatic</subject><subject>Reproducibility of Results</subject><subject>Respiration</subject><subject>Sensitivity and Specificity</subject><issn>1569-9048</issn><issn>1878-1519</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkE1P3DAQhi1UxFf7E0C5tGoPoR47juMTVCsKSEhItD1bs_YEjLLJYicg_n29H4gjl_HIel771cPYMfBT4FD__AOqNqXhVfOdix-cA6hS7bADaHRTggLzKe9vyD47TOkxQxq03GP7IARveNMcsPM7WsbBTy7MQxfG12Joi_EljO6hwN4XqQ9tvojYJx9w-RDxfoFjcMUyUkpTHp_Zbotdoi_b84j9-33xd3ZV3txeXs9-3ZROGhjLplWVBASqvKjmaHSFNVXCIdai9g5UA4RgfFtpo-at1JUWCIpAoBCStDxi3zbv5rpPE6XRLkJy1HXY0zAlqwVXOmczqDagi0NKkVq7jGGB8dUCtyt1dq3OrrxYLuxanV3lTrYfTPMF-ffU1lUGvm4BTA67NktxIb1z0nAjZZ25sw1HWcdzoGiTC9Q78iGSG60fwgdV_gP_L4rp</recordid><startdate>20020904</startdate><enddate>20020904</enddate><creator>Luo, Y.M</creator><creator>Hart, N</creator><creator>Mustfa, N</creator><creator>Man, W.D.C</creator><creator>Rafferty, G.F</creator><creator>Polkey, M.I</creator><creator>Moxham, J</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20020904</creationdate><title>Reproducibility of twitch and sniff transdiaphragmatic pressures</title><author>Luo, Y.M ; Hart, N ; Mustfa, N ; Man, W.D.C ; Rafferty, G.F ; Polkey, M.I ; Moxham, J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c391t-8f5431a1e4d24ba974a6e42caa626dc1581ea19df4795bf37472a15e12a223e73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Biological and medical sciences</topic><topic>Birth control</topic><topic>Diaphragm - innervation</topic><topic>Diaphragm - physiology</topic><topic>Electric Stimulation - methods</topic><topic>Electromagnetic Phenomena</topic><topic>Gynecology. Andrology. Obstetrics</topic><topic>Humans</topic><topic>Inspiratory Capacity</topic><topic>Mammals, Humans</topic><topic>Medical sciences</topic><topic>Methods, magnetic stimulation, diaphragm</topic><topic>Muscle Contraction - physiology</topic><topic>Muscle, diaphragm, magnetic stimulation</topic><topic>Nerve, phrenic</topic><topic>Other methods of contraception. Sterilization</topic><topic>Phrenic Nerve - physiology</topic><topic>Pressure</topic><topic>Pressure, twitch, transdiaphragmatic</topic><topic>Reproducibility of Results</topic><topic>Respiration</topic><topic>Sensitivity and Specificity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Luo, Y.M</creatorcontrib><creatorcontrib>Hart, N</creatorcontrib><creatorcontrib>Mustfa, N</creatorcontrib><creatorcontrib>Man, W.D.C</creatorcontrib><creatorcontrib>Rafferty, G.F</creatorcontrib><creatorcontrib>Polkey, M.I</creatorcontrib><creatorcontrib>Moxham, J</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Respiratory physiology & neurobiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Luo, Y.M</au><au>Hart, N</au><au>Mustfa, N</au><au>Man, W.D.C</au><au>Rafferty, G.F</au><au>Polkey, M.I</au><au>Moxham, J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reproducibility of twitch and sniff transdiaphragmatic pressures</atitle><jtitle>Respiratory physiology & neurobiology</jtitle><addtitle>Respir Physiol Neurobiol</addtitle><date>2002-09-04</date><risdate>2002</risdate><volume>132</volume><issue>3</issue><spage>301</spage><epage>306</epage><pages>301-306</pages><issn>1569-9048</issn><eissn>1878-1519</eissn><abstract>Twitch transdiaphragmatic pressure (Tw Pdi) measured with magnetic stimulation of the phrenic nerve is used to follow up patients and to assess the effect of clinical treatments on diaphragm function. However the reproducibility of Tw Pdi on different occasions has been little studied. We investigated 32 normal subjects, measuring Tw Pdi elicited by bilateral magnetic stimulation of the phrenic nerves on two to 14 occasions. Sniff transdiaphragmatic pressure (sniff Pdi) was also measured. The mean value of Tw Pdi and sniff Pdi were 28±5 and 134±24 cm H
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| source | Elsevier ScienceDirect Journals Complete - AutoHoldings; MEDLINE |
| subjects | Biological and medical sciences Birth control Diaphragm - innervation Diaphragm - physiology Electric Stimulation - methods Electromagnetic Phenomena Gynecology. Andrology. Obstetrics Humans Inspiratory Capacity Mammals, Humans Medical sciences Methods, magnetic stimulation, diaphragm Muscle Contraction - physiology Muscle, diaphragm, magnetic stimulation Nerve, phrenic Other methods of contraception. Sterilization Phrenic Nerve - physiology Pressure Pressure, twitch, transdiaphragmatic Reproducibility of Results Respiration Sensitivity and Specificity |
| title | Reproducibility of twitch and sniff transdiaphragmatic pressures |
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