{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,6]],"date-time":"2026-04-06T10:49:39Z","timestamp":1775472579928,"version":"3.50.1"},"reference-count":18,"publisher":"SAGE Publications","issue":"11","license":[{"start":{"date-parts":[[2022,7,19]],"date-time":"2022-07-19T00:00:00Z","timestamp":1658188800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Respir Care"],"published-print":{"date-parts":[[2022,11]]},"abstract":"\n BACKGROUND:<\/jats:title>\n ICU-acquired diaphragm paresis occurs in about 25% of patients after prolonged mechanical ventilation. Diaphragm function can be evaluated via several approaches including monitoring of electrical activity of diaphragm (electromyography [EMG]) or ultrasound (US) measurements. We aimed to assess the usefulness of diaphragm EMG indices in predicting liberation outcome in comparison with diaphragm US measurements.<\/jats:p>\n <\/jats:sec>\n \n METHODS:<\/jats:title>\n \n We included consecutive subjects invasively ventilated for > 48 h for acute respiratory failure and who were considered ready to undergo a spontaneous breathing trial (SBT). Exclusion criteria were age < 18 y, pregnancy, tracheostomy, or patients with confirmed neuromuscular diseases. To start the SBT, we set pressure support to 0 cm H\n 2<\/jats:sub>\n O and PEEP to 5 cm H\n 2<\/jats:sub>\n O. During the initial 5 min of SBT, mean values of \u0394 electrical activity of the diaphragm (\u0394EA\n di<\/jats:sub>\n ) (EA\n di<\/jats:sub>\n peak \u2212 EA\n di<\/jats:sub>\n minimal), tidal volume (V\n T<\/jats:sub>\n ), and breathing frequency were measured. Neuroventilatory efficiency was calculated as V\n T<\/jats:sub>\n divided by \u0394EA\n di<\/jats:sub>\n . Rapid shallow breathing index was calculated as breathing frequency divided by V\n T<\/jats:sub>\n . US examination of the diaphragm and assessment of diaphragmatic excursion (DE) and diaphragm thickening fraction (DTF) were recorded 30 min after initiation of SBT.\n <\/jats:p>\n <\/jats:sec>\n \n RESULTS:<\/jats:title>\n \n Twenty-four subjects were included; DTF predicted weaning failure with area under the curve 0.96 and\n P<\/jats:italic>\n value < .001 with sensitivity 100% and specificity 94% for the cutoff value \u2264 15%. DE for the cutoff \u2264 1.56 cm showed sensitivity 75% and specificity 69%, whereas \u0394EA\n di<\/jats:sub>\n with cutoff value \u2264 4 \u03bcV showed sensitivity 25% and specificity 100%. Neuroventilatory efficiency with cutoff value \u2264 29 mL\/\u03bcV showed sensitivity 50% and specificity 81%. All 3 parameters showed nonsignificant results with area under the curve 0.73, 0.56, and 0.62 and\n P<\/jats:italic>\n values .08, .65, and .34, respectively.\n <\/jats:p>\n <\/jats:sec>\n \n CONCLUSIONS:<\/jats:title>\n Diaphragm EMG indices were inferior to diaphragm ultrasonography in prediction of mechanical ventilation liberation outcome.<\/jats:p>\n <\/jats:sec>","DOI":"10.4187\/respcare.09779","type":"journal-article","created":{"date-parts":[[2022,7,19]],"date-time":"2022-07-19T13:30:22Z","timestamp":1658237422000},"page":"1437-1442","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":7,"title":["Diaphragm Electromyography Versus Ultrasonography in the Prediction of Mechanical Ventilation Liberation Outcome"],"prefix":"10.1177","volume":"67","author":[{"given":"Ashraf S","family":"Al Tayar","sequence":"first","affiliation":[{"name":"Security Forces Hospital Dammam, Dammam, Saudi Arabia."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eslam E","family":"Abdelshafey","sequence":"additional","affiliation":[{"name":"Critical Care Medicine, Faculty of Medicine, University of Alexandria, Alexandria, Egypt."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2022,7,19]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1164\/rccm.200706-893OC"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1097\/CCM.0b013e3182282a5a"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1183\/09031936.00010206"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1097\/MCC.0b013e32835c5095"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1001\/jama.288.22.2859"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.ccm.0000281450.01881.d8"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00134-004-2174-z"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.CCM.0000153521.41848.7E"},{"issue":"1","key":"e_1_3_2_10_2","first-page":"18","article-title":"Monitoring diaphragm function in the ICU","volume":"26","author":"Dres M","year":"2020","unstructured":"Dres M, , Demoule A. Monitoring diaphragm function in the ICU. Curr Opin Crit Care, 2020; 26(1):18-25.","journal-title":"Curr Opin Crit Care"},{"key":"e_1_3_2_11_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00134-017-4928-4"},{"key":"e_1_3_2_12_2","doi-asserted-by":"publisher","DOI":"10.1164\/rccm.201703-0536OC"},{"key":"e_1_3_2_13_2","doi-asserted-by":"publisher","DOI":"10.1097\/MD.0000000000010968"},{"key":"e_1_3_2_14_2","doi-asserted-by":"publisher","DOI":"10.1164\/rccm.201503-0620OC"},{"key":"e_1_3_2_15_2","doi-asserted-by":"publisher","DOI":"10.1136\/thx.49.5.500"},{"key":"e_1_3_2_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijnurstu.2021.103890"},{"key":"e_1_3_2_17_2","doi-asserted-by":"publisher","DOI":"10.1186\/cc12865"},{"key":"e_1_3_2_18_2","doi-asserted-by":"publisher","DOI":"10.1186\/cc11451"},{"key":"e_1_3_2_19_2","doi-asserted-by":"publisher","DOI":"10.1186\/s13054-016-1479-y"}],"container-title":["Respiratory Care"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.4187\/respcare.09779","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.4187\/respcare.09779","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.4187\/respcare.09779","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,6]],"date-time":"2026-04-06T09:39:09Z","timestamp":1775468349000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.4187\/respcare.09779"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,7,19]]},"references-count":18,"journal-issue":{"issue":"11","published-print":{"date-parts":[[2022,11]]}},"alternative-id":["10.4187\/respcare.09779"],"URL":"https:\/\/doi.org\/10.4187\/respcare.09779","relation":{},"ISSN":["0020-1324"],"issn-type":[{"value":"0020-1324","type":"print"}],"subject":[],"published":{"date-parts":[[2022,7,19]]}}}