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MINERVA ANESTESIOLOGICA

A Journal on Anesthesiology, Resuscitation, Analgesia and Intensive Care


Official Journal of the Italian Society of Anesthesiology, Analgesia, Resuscitation and Intensive Care
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Minerva Anestesiologica 2017 June;83(6):582-9

DOI: 10.23736/S0375-9393.17.11419-7

Copyright © 2017 EDIZIONI MINERVA MEDICA

language: English

Causes of sore throat after intubation: a prospective observational study of multiple anesthesia variables

Phillip D., LEVIN , Chrysostomou CHRYSOSTOMOS, Carlos A. IBARRA, Stephan LEDOT, Daigo NAITO, Charles WEISSMAN, Alexander AVIDAN

Department of Anesthesiology and Critical Care Medicine, Hadassah Hebrew University Medical Center, Jerusalem, Israel


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BACKGROUND: Sore throat is common after intubation for surgery. This observational study investigated cuff pressure and a large range of clinical covariates to explore the etiology of sore throat.
METHODS: Approximately 24 hours after surgery six questions relating to pain, upper airway symptoms and sore throat were delivered to patients who had undergone intubation. Sore throat was correlated with demographics, anesthesia variables and cuff pressure (measured for a subset of patients).
RESULTS: Sore throat was reported by 270/518 (52%) patients with VAS Score 45.9±25.1 (range 0-100). Sore throat patients were significantly younger, had a lower ASA status, were more frequently female, had shorter surgeries and lower nitrous oxide exposure, had a higher proportion of smaller tracheal tubes (7.5 mm internal diameter vs. 8 mm), had a higher incidence of nasogastric drainage, higher propofol doses and a higher usage of ketorolac. Decreasing age (odds ratio 0.976, 95% confidence intervals 0.961-0.992, P=0.003) and the presence of a nasogastric tube when the questionnaire was delivered (OR 1.83, 95% CI: 1.06-3.14, P=0.03) remained significant predictors of sore throat on multivariate analysis. Mean cuff pressure (measured for 160 patients) was 56.8±41.9 mmHg. Cuff pressure was similar amongst patients with and without sore throat (57±46 vs. 53±38 mmHg, P=0.58). There was no correlation between cuff pressure and severity of sore throat (r=0.004, P=0.37).
CONCLUSIONS: Only age and the presence of a nasogastric tube after surgery were significant predictors for sore throat. This result contradicts most other studies of cuff pressure where fewer covariates were measured.


KEY WORDS: Anesthesia - Pain - Intubation - Surgery - Trachea

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Publication History

Issue published online: June 7, 2017
Article first published online: January 20, 2017
Manuscript accepted: January 17, 2017
Manuscript revised: January 12, 2017
Manuscript received: May 6, 2016

Cite this article as

Levin PD, Chrysostomos C, Ibarra CA, Ledot S, Naito D, Weissman C, et al. Causes of sore throat after intubation: a prospective observational study of multiple anesthesia variables. Minerva Anestesiol 2017;83:582-9. DOI: 10.23736/S0375-9393.17.11419-7

Corresponding author e-mail

levinp@netvision.net.il