Magnitude and Associated Risk Factors of Post Operative Sore Throat Following Surgery by General Anesthesia with Endotracheal Intubation in Black Lion Hospital, Addis Ababa, Ethiopia
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Date
2016-06
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Addis Abeba University
Abstract
Background: A complaint of postoperative pharyngeal discomfort is so prevalent that it is
almost expected by patients and anesthetist alike as an unavoidable part of routine anesthesia.
Complaints range from a minor throat irritation to debilitating pain, inability to swallow and
temporary voice changes, and are a frequent observation on the postoperative visit. There is no
data regarding the magnitude of post-operative airway complications and their associated risk
factors in Ethiopia.
Objective: The purpose of this study is to assess the magnitude and possible associated risk
factors for postoperative sore throat following surgery by general anesthesia with endotracheal
intubation.
Methods and materials: Institutional based crossectional study design was conducted in
Black Lion Hospital Addis Ababa, Ethiopia from February 1-30, 2016 in patients aged 18
years and above who underwent surgery under anesthesia with endotracheal intubation using
structured questionnaire prepared on variables being measured. Bivariate analysis and binary
logistic regression was used to measure association between dependent and independent
variables. Pvalue 0.05 was used as cut off point.
Results:Out of 114 patients who had elective surgery by anesthesia with endotracheal
intubation, 52(45.6%) of the study participants complained of various forms of post-operative
throat complaints. In this study it was found that size of ETT showed statistically significant
association with the post-operative sore throat with p-value 0.001, (AOR- 0.214, 95% CI
0.090-0.512) and the duration of anesthesia/surgeryalso showed statistically significant
association with POST with p-value 0.014, (AOR 0.14, 95% CI 0.029-0.676).
Conclusion and recommendation:The findings of this study confirmed previous observations
that the larger the ETT size, the higher the incidence of postoperative respiratory morbidities.
Although tracheal intubation remains an absolute necessity for good airway protection for
different surgical procedures, we recommendedto use the smaller ETT sizes (6.5, 7.0 mm ID) to
minimize the pressure-induced trauma on the laryngeal and tracheal mucosae
Key words: -Post operative sore throat, Endotracheal tube. surgery
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Keywords
Post operative sore throat; Endotracheal ube; surgery