Multicenter study assessing effects of heat and moisture exchanger use on respiratory symptoms and voice quality in laryngectomized individuals

Abstract

Objective A multicenter study based in the United States assessed the heat-moisture exchanger effect on respiratory symptoms and “voice quality” of laryngectomees. Patients and measures The study group consisted of 81 consecutive laryngectomees (62 men and 19 women; mean age, 66 years; age range, 45 to 89 years), with a median follow-up of 3.5 years (range, 0.5 to 24 years). A structured questionnaire was used to assess 3-month results, and tally sheets recorded the frequency of cough-expectoration during first and last trial weeks. Results Compliance was 73% (n = 59); decrease in coughing, 68%; sputum production, 73%; forced expectoration, 60%; and need for stoma cleaning, 52% of these 59 patients. Regarding daily cough-expectoration frequency, a statistically significant decrease ( P < 0.0001) was found between the first and last trial weeks. Regarding influence on voice quality, 46% of regular users reported improvement in intelligibility, 30% in loudness, 37% in fluency, and 40% in telephone intelligibility. Fourteen patients (19%) reported skin irritation, with discontinuation of 7 patients. Conclusion The observed decrease in pulmonary symptoms and improvement in voice quality confirm earlier reports from the Netherlands, United Kingdom, and Spain indicating improvement in postlaryngectomy quality of life.