Analysis of Acoustical Parameters of the Cervical Auscultation for Adults and Seniors
Introduction: Cervical auscultation is a complementary test used in swallow clinical evaluation for the analysis of sound in the pharyngeal stage. By using the electronic stethoscope is possible to record, to scan and to analyze the sounds, making the cervical auscultation an objective examination.
Objective: To analyze the acoustic parameters of swallowing through digital cervical auscultation.
Method: This study is a data retrospective analysis collected with the digital stethoscope model 4100 through the program 3M Littmann Sound Analysis Software. This is a database collected in surveys approved by the Research Ethics Committee of the University. For this study, the timing parameters of the oral phase of swallowing were analyzed, the total time of swallowing (oral and pharyngeal phases), the amplitude of intensity and frequency of pharyngeal swallowing sound in liquid consistency (5 mL of water) in 89 individuals aged 17 to 91 years. The sample was divided into age groups: less than 27.6 years, between 27.7 and 67.3 years and more than 67.4 years.
Results: The mean age of the individuals was 50.2 years. There was no statistically significant difference between the sexes in terms of age, duration, timing, and intensity of the noise. The group of more than 67.4 years had time values of the oral stage of swallowing and intensity higher than the other two age groups.
Conclusion: The data show particularity in different age groups for the parameters analyzed and that the higher the age, longer the time of the oral stage of swallowing and stronger will be intensity.
Keywords: Auscultation, parameters, deglutition.