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2023, Number 2

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Rev Mex Anest 2023; 46 (2)

Less aerolization with superior laryngeal nerve block compared to intravenous lidocaine at extubation

González-Grijalva MC, Vidaña-Martínez GJ, Álvarez-Orenday GF, Tirado-Aguilar RD, Pierdant-Pérez M

Language: Spanish
References: 21
Page: 111-115
PDF size: 270.69 Kb.


ABSTRACT

Introduction: coughing is a physiological response to protect the airway, it produces aerosols that are identified by imaging reaching a speed of up to 8 meters per second. Extubation produces cough, hypertension, tachycardia, apnea and laryngospasm, there are methods to minimize its occurrence. Due to the COVID-19 pandemic, intravenous lidocaine and superior laryngeal nerve block have been used as cough reflex prophylaxis. The aim was to compare them in cough inhibition. Material and methods: patients aged 18-60 years, elective surgery with balanced general anesthesia, ASA 1-3, with intubation less than 3 hours, were selected. A total of 90 patients were randomized, 45 in each group. A total of 10 patients were eliminated because they presented hemodynamic instability at the end of surgery, and because the intravenous dose of lidocaine was not administered within the established time. Results: there was no statistically significant difference in the number of patients who presented cough in both groups (13 vs 10, p = 0.4684), of these there was a statistically significant difference in the number of decibels in favor of the block group (75.6 vs 67, p < 0.001). Conclusions: block presents less aerolization than intravenous lidocaine in extubation.


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