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Dynamic vocal cord behavior and stridor during emergence from general anesthesia in small children with supraglottic airway.
Ishibashi, Katsuhiko; Kitamura, Yuji; Kato, Shinichiro; Sugano, Miri; Sakaguchi, Yuichi; Sato, Yasunori; Isono, Shiroh.
Afiliación
  • Ishibashi K; Department of Anesthesiology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan. katsu1484@gmail.com.
  • Kitamura Y; Department of Anesthesiology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
  • Kato S; Department of Anesthesiology, Matsudo City General Hospital, Matsudo, Japan.
  • Sugano M; Department of Anesthesiology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
  • Sakaguchi Y; Department of Anesthesiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
  • Sato Y; Department of Anesthesiology, Chiba University Hospital, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
  • Isono S; Department of Anesthesiology, Funabashi Central Hospital, Funabashi, Japan.
J Anesth ; 37(5): 672-680, 2023 10.
Article en En | MEDLINE | ID: mdl-37326855
PURPOSE: Stridor during emergence from anesthesia is not rare in children managed with supraglottic airway (SGA). However, we know little about the mechanisms of stridor and behavior of the vocal cords (VC). This study aimed to clarify patterns of VC movement and laryngeal airway maintenance function during recovery from anesthesia in children with SGA. METHODS: This is a secondary analysis of data collected from an observational study involving 27 anesthetized children. Using a multi-panel recording system, endoscopic VC image, vital sign monitor, multi-channel tracings of respiratory variables and respiratory sound and patient's view were simultaneously captured in one monitor. Inspiratory and expiratory VC angles formed by lines connecting anterior and posterior commissures were measured at the first spontaneous breath and the breath one minute after the first breath. VC narrowing and dilation were assessed by differences of VC angles. RESULTS: Inspiratory VC narrowing (median (IQR): 5.3 (2.7, 9.1) degree at the first breath) and dilation (- 2.7 (- 3.8, - 1.7) degree at the first breath) were observed in 15 and 12 out of 27 children, respectively. The former group achieved greater tidal volume compared to the latter in one minute. Five children (19%) temporarily developed stridor-like sound from outside with inspiratory VC narrowing. The stridor-like sound was captured by microphones attached to the neck and anesthesia circuit, but was not evident from the chest. CONCLUSION: Laryngeal narrowing occurs in half of the children with SGA during emergence from anesthesia, and temporal stridor-like sound is relatively common. CLINICAL TRIAL REGISTRATION: UMIN (University Hospital Information Network) Clinical Registry: UMIN000025058 ( https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000028697 ).
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Pliegues Vocales / Laringe Tipo de estudio: Observational_studies Límite: Child / Humans Idioma: En Revista: J Anesth Asunto de la revista: ANESTESIOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Japón

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Pliegues Vocales / Laringe Tipo de estudio: Observational_studies Límite: Child / Humans Idioma: En Revista: J Anesth Asunto de la revista: ANESTESIOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Japón