Aim: To establish age as an essential factor in the assessment of swallowing
Materials and methods: Sixty subjects were divided into two age groups (18 to 33 years and 55 to 70 years) and were further divided into males and females. Each subject was made to swallow four times each with different food consistency (dry, water, puree, and solid). The electroglottograph (EGG) was done during the swallowing process, and each swallow was depicted by a peak and a trough in the EGG. The X-axis in the EGG showed time while the Y-axis shows percentage amplitude. With the help of web plot digitizer software, the change in time and the change in percentage amplitude were obtained from the point of onset and offset of the peak and trough in the graph and the highest and lowest point on the peak and trough in the graph respectively.
Results: A significant effect of age on dry swallow time and percentage amplitude, water swallow time and percentage amplitude, puree swallow time and percentage amplitude, solid swallow time and percentage amplitude was obtained.
Conclusion: The results indicated that as age increased there was a significant increase in the change in time and a significant decrease in the change in percentage amplitude parameter.
Clinical significance: Age should be considered as an important factor in the process of assessment of swallowing. The altered physiology with an increase in age should influence the clinician\'s perception of normalcy and prognostic predictions.
Dodds WJ, Stewart ET, Logemann JA. Physiology and radiology of the normal oral and pharyngeal phases of swallowing. AJR. American journal of roentgenology. 1990 May;154(5):953- 963.
Robbins J, Hamilton JW, Lof GL, Kempster GB. Oropharyngeal swallowing in normal adults of different ages. Gastroenterology. 1992 Sep 1;103(3):823-829.
Schultz JL, Perlman AL, Van Daele DJ. Laryngeal movement, oropharyngeal pressure, and submental muscle contraction during swallowing. Archives of physical medicine and rehabilitation. 1994 Feb 1;75(2):183-188.
Hiss SG, Strauss M, Treole K, Stuart A, Boutilier S. Effects of age, gender, bolus volume, bolus viscosity, and gustation on swallowing apnea onset relative to lingual bolus propulsion onset in normal adults. Journal of Speech, Language, and Hearing Research. 2004 Jun 1;47(3):572-583.
Donzelli J, Brady S, Wesling M, Craney M. Simultaneous modified Evans blue dye procedure and video nasal endoscopic evaluation of the swallow. The Laryngoscope. 2001 Oct;111(10):1746-1750.
Steele CM, Van Lieshout PH. Influence of bolus consistency on lingual behaviors in sequential swallowing. Dysphagia. 2004 Aug 1;19(3):192-206.
Sorin R, McClean MD, Ezerzer F, Meissner-Fishbein B. Electroglottographic evaluation of the swallow. Archives of physical medicine and rehabilitation. 1987 Apr;68(4): 232-5.
Perlman AL, Grayhack JP. Use of the electroglottograph for measurement of temporal aspects of the swallow: preliminary observations. Dysphagia. 1991 Jun 1;6(2):88-93.
Perlman AL, Liang H. Frequency response of the Fourcin electroglottograph and measurement of temporal aspects of laryngeal movement during swallowing. Journal of Speech, Language, and Hearing Research. 1991 Aug 1;34(4):791- 795.
Nozaki S, Kang J, Miyai I, Matsumura T. Electroglottographic evaluation of swallowing in Parkinson's disease. Rinsho shinkeigaku= Clinical neurology. 1994 Sep;34(9):922- 924.
Nozaki S, Matsumura T, Takahashi M, Miyai I, Kang J. Electroglottographic studies in myasthenia gravis patients- -swallowing in exacerbation and remission stage. Rinsho shinkeigaku= Clinical neurology. 1997 Sep;37(9):841-844.
Ding R, Larson CR, Logemann JA, Rademaker AW. Surface electromyographic and electroglottographic studies in normal subjects under two swallow conditions: normal and during the Mendelsohn manuever. Dysphagia. 2002 Jan 1;17(1): 1-2.
Farooq M, Fontana JM, Sazonov E. A novel approach for food intake detection using electroglottography. Physiological measurement. 2014 Mar 26;35(5):739.
Hiss SG, Treole K, Stuart A. Effects of age, gender, bolus volume, and trial on swallowing apnea duration and swallow/ respiratory phase relationships of normal adults. Dysphagia. 2001 Mar 1;16(2):128-135.
Nilsson H, Ekberg O, Olsson R, Hindfelt B. Quantitative aspects of swallowing in an elderly nondysphagic population. Dysphagia. 1996 Jun 1;11(3):180-184.
Sonies BC, Parent LJ, Morrish K, Baum BJ. Durational aspects of the oral-pharyngeal phase of swallow in normal adults. Dysphagia. 1988 Mar 1;3(1):1-10.
Selley WG, Flack FC, Ellis RE, Brooks WA. Respiratory patterns associated with swallowing: Part 1. The normal adult pattern and changes with age. Age and ageing. 1989 May 1;18(3):168-172.
Sheth N, Diner WC. Swallowing problems in the elderly. Dysphagia. 1988 Dec 1;2(4):209-215.