{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T14:00:58Z","timestamp":1790517658645,"version":"4.1.0"},"reference-count":20,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2017,1,17]],"date-time":"2017-01-17T00:00:00Z","timestamp":1484611200000},"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":["J Int Med Res"],"published-print":{"date-parts":[[2017,2]]},"abstract":"<jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To investigate the clinical feasibility of the injection test for balloon placement during oesophageal pressure measurement in patients without spontaneous breathing.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>The injection test was performed in 12 mechanically ventilated patients under deep sedation and paralysis. During withdrawal of the balloon from the stomach and air injection into the gastric lumen of the catheter, the presence of the injection test wave in the balloon pressure tracing indicated that the whole balloon was positioned above the lower oesophageal sphincter (LES). The positive pressure occlusion test was performed at different balloon positions.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>In each patient, the injection test wave appeared at a distinct balloon depth, with a mean\u2009\u00b1\u2009standard deviation of 41.9\u2009\u00b1\u20093.3\u2009cm and range from 37\u2009cm to 47\u2009cm. The optimal ratio of changes in the balloon and airway pressure (0.8\u20131.2) during the positive pressure occlusion test was obtained when the balloon was located 5\u2009cm and 10\u2009cm above the LES in nine (75%) and three (25%) patients, respectively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The injection test is feasible for identification of the whole balloon position above the LES during passive ventilation. The middle third of the oesophagus might be the optimal balloon position.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/0300060516679776","type":"journal-article","created":{"date-parts":[[2017,1,21]],"date-time":"2017-01-21T11:27:04Z","timestamp":1484998024000},"page":"320-331","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":5,"title":["Use of the injection test to indicate the oesophageal balloon position in patients without spontaneous breathing: a clinical feasibility study"],"prefix":"10.1177","volume":"45","author":[{"given":"Han","family":"Chen","sequence":"first","affiliation":[{"name":"Department of Critical Care Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, China"},{"name":"Fujian Provincial Clinical College Hospital, Fujian Medical University, Fuzhou, Fujian, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yan-Lin","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Critical Care Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, China"},{"name":"Beijing Electric Power Hospital, Capital Medical University, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ming","family":"Xu","sequence":"additional","affiliation":[{"name":"Department of Critical Care Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhong-Hua","family":"Shi","sequence":"additional","affiliation":[{"name":"Department of Critical Care Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xuan","family":"He","sequence":"additional","affiliation":[{"name":"Department of Critical Care Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiu-Mei","family":"Sun","sequence":"additional","affiliation":[{"name":"Department of Critical Care Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xu-Ying","family":"Luo","sequence":"additional","affiliation":[{"name":"Department of Critical Care Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guang-Qiang","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Critical Care Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jian-Xin","family":"Zhou","sequence":"additional","affiliation":[{"name":"Department of Critical Care Medicine, Beijing Tiantan 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