Abstract
Cricopharyngeal dysfunction, especially cricopharyngeal achalasia, is a common cause of dysphagia, while patients with brainstem stroke and medullary damage have a relatively high risk of cricopharyngeal achalasia. The aim of this article was to introduce an improved method of CT-guided method of injecting botulinum toxin A into the cricopharyngeus muscle using esophageal balloon radiography, and to assess the effect of the botulinum toxin A injection on swallowing performance. Seventeen patients with cricopharyngeal dysphagia were treated with botulinum toxin A injection using esophageal balloon radiography combined with CT guidance to the cricopharyngeal muscle. Primary outcome measures, including Functional Oral Intake Scale and Deglutition Handicap Index, were performed at baseline, 1 week, and 1 month after treatment. The Levene method was used to test the homogeneity of variance, and the Kruskal–Wallis test was used to compare the scores between the timepoints. Botulinum toxin A injection resulted in obvious improvement in 15 patients (88.2%) and no improvement in two patients (11.8%). Compared with the scores prior to treatment, the Functional Oral Intake Scale and Deglutition Handicap Index scores were significantly improved at 1 week (P < 0.001 and P = 0.008, respectively) and 1 month after the treatment (P = 0.001 and P < 0.001, respectively). Thus, CT-guided percutaneous injection of botulinum toxin A is probably a relatively safe, well-tolerated, and viable technique for the treatment of cricopharyngeal dysphagia caused by brainstem injury. Localization with a balloon radiography made the needle guidance easier to visualize.
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This study was supported by Department of Physical Medicine and Rehabilitation, Qilu Hospital of Shandong University and Department of Spinal Surgery, Armed Police Corps Hospital of Shandong Province, China.
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Huai, J., Hou, Y., Guan, J. et al. Botulinum Toxin A Injection Using Esophageal Balloon Radiography Combined with CT Guidance for the Treatment of Cricopharyngeal Dysphagia. Dysphagia 35, 630–635 (2020). https://doi.org/10.1007/s00455-019-10070-5
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DOI: https://doi.org/10.1007/s00455-019-10070-5