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Measurement of Tissue Oxygenation Using Near-Infrared Spectroscopy in Patients Undergoing Hemodialysis
Published on: October 2, 2020
Voice in chronic hemodialyzed individuals
Radish Kumar Balasubramanium1, Jayashree S Bhat
1Department of Audiology and Speech Language Pathology, Kasturba Medical College, Mangalore, India. radheesh_b@yahoo.co.in
Indian Journal of Medical Sciences
|April 3, 2012
Summary
Patients undergoing chronic hemodialysis experience voice disorders, including changes in acoustic and aerodynamic measures. These vocal dysfunctions are linked to the effects of kidney disease and dialysis on respiratory and phonatory systems.
Area of Science:
- Nephrology
- Speech-Language Pathology
- Pulmonology
Background:
- Chronic hemodialysis impacts multiple organ systems, including the respiratory system.
- Respiration is fundamental to voice production, suggesting potential vocal changes in hemodialysis patients.
Purpose of the Study:
- To investigate acoustic and aerodynamic voice characteristics in patients with chronic hemodialysis.
- To identify vocal dysfunctions associated with chronic hemodialysis.
Main Methods:
- Acoustic analysis of sustained vowel /a/ using VAGHMI software.
- Aerodynamic analysis of sustained /a/, /s/, and /z/ durations.
- Independent t test to compare hemodialysis patients and healthy controls.
Main Results:
- Significant deviations in frequency and perturbation measures were observed in chronic hemodialysis subjects.
- Aerodynamic measures also showed significant differences compared to normal subjects.
- Underlying pathophysiology is discussed in relation to the observed deviations.
Conclusions:
- Subjects with chronic hemodialysis demonstrate clinical evidence of voice disorders.
- Renal system influence on respiratory and phonatory systems contributes to vocal deviations.
- Negative fluid balance from hemodialysis may also affect voice quality.
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