Chilkoti Geetanjali T, Mohta Medha, Janani Sai
Department of Anesthesiology and Critical Care at the University College of Medical Sciences.
Guru Teg Bahadur Hospital, Shahdara, Delhi, India.
AANA J. 2016 Dec;84(6):420-422.
Laryngospasm is a potential complication encountered during anesthesia using a laryngeal mask airway (LMA). We report a case in which laryngospasm resulted in unsuccessful placement of an LMA ProSeal Airway (Teleflex Inc), and we discuss the various causes of unsuccessful placement of this type of airway device. Laryngospasm causes increased resistance to gas flow by inducing closure of vocal cords, aryepiglottic fold, and periglottic tissue. In this case report, the laryngospasm-induced increased resistance to gas flow was manifested by exaggerated outward movement of the LMA ProSeal following its connection to gas flows and thus resulted in failed airway placement. The possibility of laryngospasm as a cause of failed placement of an LMA ProSeal must be considered in clinical practice.
喉痉挛是使用喉罩气道（LMA）进行麻醉时可能遇到的一种并发症。我们报告了一例因喉痉挛导致LMA ProSeal气道（泰利福公司）放置失败的病例，并讨论了这类气道装置放置失败的各种原因。喉痉挛通过诱导声带、杓会厌襞和会厌周组织闭合，导致气流阻力增加。在本病例报告中，喉痉挛引起的气流阻力增加表现为LMA ProSeal与气流连接后向外过度移动，从而导致气道放置失败。临床实践中必须考虑喉痉挛作为LMA ProSeal放置失败原因的可能性。
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