{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,27]],"date-time":"2026-08-27T16:20:24Z","timestamp":1787847624918,"version":"build-2784847793"},"reference-count":14,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"1","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2021,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background and Aims:<\/jats:title>\n                    <jats:p>Laryngeal Mask Airway [LMA] insertion has become as a basic procedural skill needed for all health care providers. Search for the most successful insertion technique continues. We evaluated the success rate of the three LMA insertion techniques- standard, 90 degree rotational and 180 degree rotational technique.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and Methods:<\/jats:title>\n                    <jats:p>\n                      A total of 180 patients of ASA I-II aged 18-65 years undergoing open superficial surgical procedures with (LMA\u00ae Unique\u2122 Airway, Teleflex\u00ae, Teleflex Medical Europe Ltd, Ireland) as an airway management device and with neuromuscular blocking agents, were randomly allocated to three groups, in this prospective randomized study. In the standard technique group (\n                      <jats:italic toggle=\"yes\">n<\/jats:italic>\n                      = 60), the LMA was inserted by standard digital intraoral method. In the 90 degree rotational technique group (\n                      <jats:italic toggle=\"yes\">n<\/jats:italic>\n                      = 60), the LMA was rotated counter-clockwise through 90 degree in the mouth and advanced until the resistance of the hypopharynx was felt, and then straightened out in the hypopharynx. In 180 degree rotational technique, LMA was inserted back-to-front, like a Guedel airway. The parameters studied were: the LMA placement success at first attempt, insertion time, need for more than one attempt at insertion, need for external airway manipulations, postoperative sore throat, blood staining and other post-operative (airway related) complications.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      The first attempt success rate in the standard technique was 83.9%, in 90 degree rotational technique was 75% and 180 degree rotational was 93.5%. The first attempt success rate was higher in 180 degree rotational group compared to 90 degree rotational group (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.05), but there was no statistically significant difference (\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &gt; 0.05) between 90 degree rotational group and the standard technique group. There was no statistically significant difference among the two groups in terms of the secondary outcomes.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>We conclude that 180 degree rotational technique of LMA insertion is more successful than 90 degree rotational technique in adult patients under general anaesthesia.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.4103\/joacp.joacp_60_19","type":"journal-article","created":{"date-parts":[[2021,4,10]],"date-time":"2021-04-10T10:32:48Z","timestamp":1618050768000},"page":"108-113","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":11,"title":["Airway management using LMA-evaluation of three insertional techniques-a prospective randomised study"],"prefix":"10.4103","volume":"37","author":[{"given":"T.","family":"Shyam","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Venkatesh","family":"Selvaraj","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","reference":[{"key":"R1-19-20240828","doi-asserted-by":"crossref","first-page":"521","DOI":"10.1016\/j.bjan.2017.04.007","article-title":"Comparison of three different insertion techniques with LMA-UniqueTM in adults: Results of a randomized trial","volume":"67","author":"Eglen","year":"2017","journal-title":"Rev Bras Anestesiol"},{"key":"R2-19-20240828","first-page":"509","article-title":"Comparing two methods of LMA insertion; classic versus simplified (airway)","volume":"20","author":"Haghighi","year":"2010","journal-title":"Middle East J Anaesthesiol"},{"key":"R3-19-20240828","doi-asserted-by":"crossref","first-page":"905","DOI":"10.1097\/ALN.0b013e31819b5d40","article-title":"Comparison of two insertion techniques of ProSeal\u2122 laryngeal mask airway: Standard versus 90-degree rotation","volume":"110","author":"Hwang","year":"2009","journal-title":"Anesthesiology"},{"key":"R4-19-20240828","doi-asserted-by":"crossref","first-page":"89","DOI":"10.1177\/0310057X9302100121","article-title":"Insertion of the laryngeal mask airway-a prospective study of four techniques","volume":"21","author":"Brimacombe","year":"1993","journal-title":"Anaesth Intensive Care"},{"key":"R6-19-20240828","doi-asserted-by":"crossref","first-page":"1179","DOI":"10.1046\/j.1365-2044.2000.01624.x","article-title":"Cuff volume and size selection with the laryngeal mask","volume":"55","author":"Asai","year":"2000","journal-title":"Anaesthesia"},{"key":"R7-19-20240828","doi-asserted-by":"crossref","first-page":"130","DOI":"10.1371\/journal.pone.0134130","article-title":"Effect of paralysis at the time of ProSeal laryngeal mask airway insertion on pharyngolaryngeal morbidities. A randomized trial","volume":"10","author":"Na","year":"2015","journal-title":"PLoS One"},{"key":"R8-19-20240828","first-page":"913","article-title":"The influence of head and neck position on oropharyngeal leak pressure and cuff position with the flexible and the standard laryngeal mask airway","volume":"88","author":"Keller","year":"1999","journal-title":"Anesth Analg"},{"key":"R9-19-20240828","doi-asserted-by":"crossref","first-page":"262","DOI":"10.1093\/bja\/85.2.262","article-title":"Mucosal pressure and oropharyngeal leak pressure with the ProSeal versus laryngeal mask airway in anaesthetized paralysed patients","volume":"85","author":"Keller","year":"2000","journal-title":"Br J Anaesth"},{"key":"R10-19-20240828","doi-asserted-by":"crossref","first-page":"987","DOI":"10.3349\/ymj.2016.57.4.987","article-title":"Standard versus rotation technique for insertion of supraglottic airway devices: Systematic review and meta-analysis","volume":"57","author":"Park","year":"2016","journal-title":"Yonsei Med J"},{"key":"R11-19-20240828","doi-asserted-by":"crossref","first-page":"239","DOI":"10.1016\/j.cacc.2010.07.009","article-title":"Functional characteristics of anaesthesia machines with circle breathing system","volume":"21","author":"Soro","year":"2010","journal-title":"Curr Anaesth Crit Care"},{"key":"R12-19-20240828","doi-asserted-by":"crossref","first-page":"747","DOI":"10.3349\/ymj.2013.54.3.747","article-title":"Laryngeal mask airway insertion in adults: Comparison between fully deflated and partially inflated technique","volume":"54","author":"An","year":"2013","journal-title":"Yonsei Med J"},{"key":"R13-19-20240828","doi-asserted-by":"crossref","first-page":"515","DOI":"10.1177\/0310057X0102900512","article-title":"Laryngeal mask airway insertion in paediatric anaesthesia: Comparison between the reverse and standard techniques","volume":"29","author":"Soh","year":"2001","journal-title":"Anaesth Intensive Care"},{"key":"R14-19-20240828","doi-asserted-by":"crossref","first-page":"416","DOI":"10.1046\/j.1460-9592.2002.00847.x","article-title":"The rotational technique with a partially inflated laryngeal mask airway improves the ease of insertion in children","volume":"12","author":"Nakayama","year":"2002","journal-title":"Paediatr Anaesth"},{"key":"R15-19-20240828","first-page":"17","article-title":"Assessment of mini-dose succinylcholine effect on facilitating laryngeal mask airway insertion","volume":"5","author":"Aghamohammadi","year":"2013","journal-title":"J Cardiovasc Thorac Res"}],"container-title":["Journal of Anaesthesiology Clinical Pharmacology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.ovid.com\/10.4103\/joacp.JOACP_60_19","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,27]],"date-time":"2026-08-27T15:24:47Z","timestamp":1787844287000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.ovid.com\/10.4103\/joacp.JOACP_60_19"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,1]]},"references-count":14,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2021]]}},"URL":"https:\/\/doi.org\/10.4103\/joacp.joacp_60_19","relation":{},"ISSN":["0970-9185"],"issn-type":[{"value":"0970-9185","type":"print"}],"subject":[],"published":{"date-parts":[[2021,1]]}}}