Dysphagia secondary to peripheral cranial nerve injury originates from weak and uncoordinated contraction-relaxation of cricopharyngeal muscle. We report on two patients who suffered vagus nerve injury during surgery and showed sudden dysphagia by opening dysfunction of upper esophageal sphincter (UES). Videofluoroscopy-guided balloon dilatation of UES was performed. We confirmed an early improvement of the opening dysfunctions of UES, although other neurologic symptoms persisted. While we did not have a proper comparison of cases, the videofluoroscopy-guided balloon dilatation of UES is thought to be helpful for the early recovery of dysphagia caused by postoperative vagus nerve injury.
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A Case of Severe Dysphagia Suspected to Result from Acute Oropharyngeal Palsy in which Balloon Dilation was Effective Masamune Ebara, Dai Fujiwara, Taiki Ito, Ran Kiguchi, Yosuke Tomiyama The Japanese Journal of Rehabilitation Medicine.2025;[Epub] CrossRef
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Simultaneous double balloon dilatation using double channel therapeutic endoscope in patients with cricopharyngeal muscle dysfunction Yong Seob Jo, Jung Hyun Cha, Yong Kyun Kim, Sun Young Kim, Hong Sub Lee Medicine.2020; 99(35): e21793. CrossRef
Effectiveness of Rehabilitative Balloon Swallowing Treatment on Upper Esophageal Sphincter Relaxation and Pharyngeal Motility for Neurogenic Dysphagia Yong Kyun Kim, Sung Sik Choi, Jung Hwa Choi, Jeong-Gyu Yoon Annals of Rehabilitation Medicine.2015; 39(4): 524. CrossRef
Objective To evaluate an effect of balloon catheter dilatation on post-swallow laryngeal elevation, total pharyngeal transit time and pharyngeal remnant in stroke patients with cricopharyngeal dysfunction. Method The 20 stroke patients with cricopharyngeal dysfunction in videofluoroscopic swallow study were recruited for the study. Using 16 Fr foley catheter, balloon was positioned across the upper esophageal sphincter under videofluoroscopy. Balloon catheter dilatation was done for 3 minutes and each ballooning was repeated 6 times for a minute. We compared pre-balloon dilatation and post-balloon dilatation values. 3 factors were evaluated, which were laryngeal elevation, total pharyngeal transit time, and post-swallow pharyngeal remnant. Results There was no significant difference in laryngeal elevation after balloon dilatation. However, total pharyngeal transit time (p<0.01) and pharyngeal remnant (p<0.001) were significantly reduced after balloon dilatation. Conclusion There were significant decrements of post-swallow total pharyngeal transit time and pharyngeal remnant after balloon dilation procedure. Balloon dilation of upper esophageal sphincter can produce relief of dysphagia in stroke patients with cricopharyngeal dysfunction.