[Botulinum toxin injection into the cricopharyngeal muscle for dysphagia: report of 2 successful cases].

Dysphagia is frequently observed in patients with sequelae after multiple cerebral infarctions and those with neuromyopathy. Dysphagia in these patients can be successfully treated by laryngeal suspension and cricopharyngeal myotomy. Surgery is not indicated in senile patients with serious complications, where conservative treatment is performed.