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KMID : 1155520200150020226
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Anesthesia and Pain Medicine
2020 Volume.15 No. 2 p.226 ~ p.232
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Vocal cord paralysis following general anesthesia with endotracheal intubation: a clinical review on 43 cases
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Lim Se-Hun
Kim Dong-Chun
Cho Kwang-Rae
Kim Myoung-Hun
Moon Sung-Ho
Cho Hak-Moo
Ki Seung-Hee
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Abstract
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Background: Vocal cord paralysis (VCP) is one of the most stressful experiences for patients undergoing general anesthesia. Moreover, it is a risk factor for aspiration pneumonia and may increase morbidity and mortality. We examined several clinical features of the condition by reviewing the medical records of patients who experienced VCP following general anesthesia.
Methods: We reviewed the medical records of 321 patients who consulted an otolaryngologist owing to hoarseness, sore throat, throat discomfort, or dysphagia after general anesthesia. Among these, we included in the present study 43 patients who were diagnosed with VCP by laryngoscopy, who did not have symptoms of suspected VCP before surgery, who had no past history of VCP, and for whom endotracheal intubation was not continued after surgery.
Results: The mean age of patients with VCP was 51.28 years. With respect to surgical site, the most common was upper limb surgery, performed in 12 cases (9 cases were performed in sitting posture. With respect to surgical duration, only 11 cases lasted less than 3 h, whereas 32 cases required a surgical duration longer than 3 h. The most common symptom of VCP was hoarseness. Nine of the patients with VCP recovered spontaneously, but VCP persisted in 13 cases until the final follow-up examination.
Conclusions: We hope that this study might call attention to the occurrence of VCP following general anesthesia. Moreover, it is necessary to further evaluate the reasons for the higher incidence of VCP in upper limb surgery performed in sitting posture.
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KEYWORD
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Endotracheal intubation, General anesthesia, Vocal cord paralysis
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