{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,16]],"date-time":"2026-06-16T11:15:07Z","timestamp":1781608507105,"version":"3.54.5"},"reference-count":28,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2017,7,25]],"date-time":"2017-07-25T00:00:00Z","timestamp":1500940800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Acta Anaesthesiol Scand"],"published-print":{"date-parts":[[2017,10]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>An important parameter to monitor adequate ventilation for laryngeal mask airway (<jats:styled-content style=\"fixed-case\">LMA<\/jats:styled-content>) is its oropharyngeal leak pressure (<jats:styled-content style=\"fixed-case\">OLP<\/jats:styled-content>). This study was designed to evaluate and compare the effect of lateral position and pneumoperitoneum on the <jats:styled-content style=\"fixed-case\">OLP<\/jats:styled-content> and ventilation efficiency between <jats:styled-content style=\"fixed-case\">LMA<\/jats:styled-content>\u2122 Proseal (<jats:styled-content style=\"fixed-case\">PLMA<\/jats:styled-content>) and <jats:styled-content style=\"fixed-case\">LMA<\/jats:styled-content>\u2122 Supreme (<jats:styled-content style=\"fixed-case\">SLMA<\/jats:styled-content>).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Patients were randomized to receive either the <jats:styled-content style=\"fixed-case\">PLMA<\/jats:styled-content> or the <jats:styled-content style=\"fixed-case\">SMLA<\/jats:styled-content>. The <jats:styled-content style=\"fixed-case\">OLP<\/jats:styled-content> was assessed in both the supine position and the lateral position with or without pneumoperitoneum. Minute ventilation was increased to maintain normal Et<jats:styled-content style=\"fixed-case\">CO<\/jats:styled-content><jats:sub>2<\/jats:sub> as far as possible. Ventilatory efficiency was scored as Class I (optimal, Et<jats:styled-content style=\"fixed-case\">CO<\/jats:styled-content><jats:sub>2<\/jats:sub> 35\u201345 mmHg), Class <jats:styled-content style=\"fixed-case\">II<\/jats:styled-content> (suboptimal, Et<jats:styled-content style=\"fixed-case\">CO<\/jats:styled-content><jats:sub>2<\/jats:sub> 45\u201355 mmHg) and Class <jats:styled-content style=\"fixed-case\">III<\/jats:styled-content> (poor, Et<jats:styled-content style=\"fixed-case\">CO<\/jats:styled-content><jats:sub>2<\/jats:sub> &gt;55 mmHg). Adverse events associated with <jats:styled-content style=\"fixed-case\">LMA<\/jats:styled-content> such as blood staining on the mask and sore throat were also recorded.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Within each group, the <jats:styled-content style=\"fixed-case\">OLP<\/jats:styled-content> was higher in the supine position than that in the lateral position with or without pneumoperitoneum (<jats:italic>P<\/jats:italic> &lt; 0.01). However, pneumoperitoneum did not further decrease the <jats:styled-content style=\"fixed-case\">OLP<\/jats:styled-content>. The <jats:styled-content style=\"fixed-case\">OLP<\/jats:styled-content> with <jats:styled-content style=\"fixed-case\">PLMA<\/jats:styled-content> was higher compared with <jats:styled-content style=\"fixed-case\">SLMA<\/jats:styled-content> regardless of the position and pneumoperitoneum (<jats:italic>P<\/jats:italic> &lt; 0.05 or 0.01). There was no significant difference in the number of patients in Class I\/<jats:styled-content style=\"fixed-case\">II<\/jats:styled-content>\/<jats:styled-content style=\"fixed-case\">III<\/jats:styled-content> for ventilation scores in the lateral position with pneumoperitoneum (83\/7\/2 in <jats:styled-content style=\"fixed-case\">PLMA<\/jats:styled-content> group and 76\/14\/2 in <jats:styled-content style=\"fixed-case\">SLMA<\/jats:styled-content> group, respectively). The incidence of adverse events was comparable in both groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Our data demonstrate that the <jats:styled-content style=\"fixed-case\">PLMA<\/jats:styled-content> has a higher <jats:styled-content style=\"fixed-case\">OLP<\/jats:styled-content> in comparison with the <jats:styled-content style=\"fixed-case\">SLMA<\/jats:styled-content> in the lateral position for laparoscopic surgery. Both devices provide comparably adequate ventilatory efficiency.<\/jats:p><\/jats:sec>","DOI":"10.1111\/aas.12943","type":"journal-article","created":{"date-parts":[[2017,7,25]],"date-time":"2017-07-25T10:48:41Z","timestamp":1500979721000},"page":"1114-1121","source":"Crossref","is-referenced-by-count":14,"title":["Influence of lateral position and pneumoperitoneum on oropharyngeal leak pressure with two types of laryngeal mask airways"],"prefix":"10.1111","volume":"61","author":[{"given":"S.","family":"Lan","sequence":"first","affiliation":[{"name":"Department of Anesthesiology Shanghai Changhai Hospital The Second Military Medical University Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Y.","family":"Zhou","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology Shanghai Changhai Hospital The Second Military Medical University Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. T.","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology Shanghai Changhai Hospital The Second Military Medical University Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Z. Z.","family":"Zhao","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology Shanghai Changhai Hospital The Second Military Medical University Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1804-3602","authenticated-orcid":false,"given":"Y.","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology Shanghai Changhai Hospital The Second Military Medical University Shanghai 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