Effects of a Sour Bolus on Oropharyngeal Swallowing Measures in Patients With Neurogenic Dysphagia This study examines the effects of a sour bolus (50% lemon juice, 50% barium liquid) on pharyngeal swallow measures in two groups of patients with neurogenic dysphagia. Group 1 consisted of 19 patients who had suffered at least one stroke. Group 2 consisted of 8 patients with dysphagia related to ... Speech: Articles and Reports
Speech: Articles and Reports  |   June 1995
Effects of a Sour Bolus on Oropharyngeal Swallowing Measures in Patients With Neurogenic Dysphagia
 
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  • © 1995, American Speech-Language-Hearing Association
Article Information
Swallowing, Dysphagia & Feeding Disorders / Special Populations
Speech: Articles and Reports   |   June 1995
Effects of a Sour Bolus on Oropharyngeal Swallowing Measures in Patients With Neurogenic Dysphagia
Journal of Speech, Language, and Hearing Research, June 1995, Vol. 38, 556-563. doi:10.1044/jshr.3803.556
History: Received August 17, 1994 , Accepted December 5, 1994
 
Journal of Speech, Language, and Hearing Research, June 1995, Vol. 38, 556-563. doi:10.1044/jshr.3803.556
History: Received August 17, 1994; Accepted December 5, 1994

This study examines the effects of a sour bolus (50% lemon juice, 50% barium liquid) on pharyngeal swallow measures in two groups of patients with neurogenic dysphagia. Group 1 consisted of 19 patients who had suffered at least one stroke. Group 2 consisted of 8 patients with dysphagia related to other neurogenic etiologies. All patients were selected because they exhibited delays in the onset of the oral swallow and delays in triggering the pharyngeal swallow on boluses of 1 ml and 3 ml liquid barium during videofluoroscopy. Results showed significant improvement in oral onset of the swallow in both groups of patients and a significant reduction in pharyngeal swallow delay in Group 1 patients and in frequency of aspiration in Group 2 patients with the sour as compared to the non-sour boluses. Other selected swallow measures in both subject groups also improved with the sour bolus. Volume effects were present but not as consistently as in prior studies. Implications for swallow therapy are discussed.

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