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. 2009 Jun;29(3):151-5.

Complications of using laryngeal mask airway during anaesthesia in patients undergoing major ear surgery

A Taheri  1 , F Hajimohamadi, H Soltanghoraee, A Moin
Affiliations

Complications of using laryngeal mask airway during anaesthesia in patients undergoing major ear surgery

A Taheri et al. Acta Otorhinolaryngol Ital. 2009 Jun.

Abstract
in English, Italian

Use of the laryngoscope and tracheal tube during general anaesthesia results in many complications such as sore throat, cough, vocal cord paralysis, compulsory injection of muscle relaxants for tube insertion and risky emergence of anaesthesia. This study investigated the use of laryngeal mask airway (LMA) as a safe and complication-free device in patients undergoing ear surgery. This is a retrospective cross-sectional study on a population comprising patients from 3 to 70 years of age who have undergone major ear surgery, in Amir Alam Hospital, from 1999 to 2006. Laryngeal mask airway replaced the tracheal tube in all patients. Of the 2000 patients who underwent major ear surgery with general anaesthesia using LMA, 246 (12.3%) developed haemodynamic instability. A significant relationship was observed between age and haemodynamic instability (p value = 0.03); 14.9% of these patients were aged between 16 and 40 years and 20% were aged > 60 years. No relationship was observed between the occurrence of this complication and duration of surgery (p value = 0.2). Furthermore, no significant relationship was observed between sex and haemodynamic instability. In conclusion, considering the low rate of complications with laryngeal mask airway, replacing tracheal tube with this device in major ear surgery will lead to a noticeable decrease in associated complications.

L’utilizzazione dell’intubazione endotracheale nel corso dell’anestesia generale può essere accompagnata da diverse complicazioni quali faringodinia, tosse, paralisi delle corde vocali, necessità di somministrazione di miorilassanti per l’inserzione del tubo, ed emergenze respiratorie. Questo studio indaga l’efficacia dell’utilizzo della maschera laringea, come strumento valido e privo di complicazioni in pazienti sottoposti a chirurgia dell’orecchio. Si tratta di uno studio retrospettivo che comprende i pazienti, di età compresa tra i 3 e i 70 anni, sottoposti a chirurgia dell’orecchio presso l’Amir Alam Hospital tra il 1999 e il 2006. In tutti questi pazienti è stata utilizzata la maschera laringea al posto dell’intubazione endotracheale. Dei 2000 pazienti sottoposti a chirurgia dell’orecchio in anestesia generale con maschera laringea, 246 (12,3%) hanno presentato instabilità emodinamica. Una relazione significativa è stata osservata tra età e instabilità emodinamica (p = 0,03); il 14,9% di questi pazienti presentava un’età compresa tra i 16 e i 40 anni, mentre il 20% presentava età > 60 anni. Nessun rapporto è stato invece osservato tra l’insorgenza di complicanze e la durata dell’intervento chirurgico (p = 0,2). Inoltre, non è stata evidenziata una relazione statisticamente significativa tra l’insorgenza di complicanze e il sesso. In conclusione considerando la bassa incidenza di complicanze con l’utilizzo di maschera laringea, la sostituzione dell’intubazione oro-tracheale con questa metodica nella chirurgia dell’orecchio potrebbe ridurre le complicanze associate all’anestesia.

Keywords: General anaesthesia; Laryngeal mask airway; Major ear surgery.

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