BACKGROUND: The larynx bypass (LB) is the only device capable of providing laryngectomy patients with the ability to smell. Our findings regarding one-time and long-term use did reveal an improved olfactory function in these patients. Because the LB is difficult to use, however, it is not appropriate for everyday use. Therefore, we devised a new instrument: the scent-diffusing ventilator (SV). METHODS: Between January 2006 and February 2007, we researched the olfactory function of 16 patients who had undergone a laryngectomy (13 men/3 women; median age, 63 years) by using the LB and the SV. Their olfactory function was measured with the Sniffin' Sticks test battery. Further practicability of both methods was determined through a visual analog scale (1-10). RESULTS: The patients' olfactory function significantly improved (SV median 8 versus LB median 7; p < 0.002). In addition, the SV was much easier to use than the LB (median, 6 versus 5; p < 0.001). CONCLUSION: Further technical improvements are necessary to make the SV an established part of the rehabilitation of the olfactory function after laryngectomy.
BACKGROUND: The larynx bypass (LB) is the only device capable of providing laryngectomy patients with the ability to smell. Our findings regarding one-time and long-term use did reveal an improved olfactory function in these patients. Because the LB is difficult to use, however, it is not appropriate for everyday use. Therefore, we devised a new instrument: the scent-diffusing ventilator (SV). METHODS: Between January 2006 and February 2007, we researched the olfactory function of 16 patients who had undergone a laryngectomy (13 men/3 women; median age, 63 years) by using the LB and the SV. Their olfactory function was measured with the Sniffin' Sticks test battery. Further practicability of both methods was determined through a visual analog scale (1-10). RESULTS: The patients' olfactory function significantly improved (SV median 8 versus LB median 7; p < 0.002). In addition, the SV was much easier to use than the LB (median, 6 versus 5; p < 0.001). CONCLUSION: Further technical improvements are necessary to make the SV an established part of the rehabilitation of the olfactory function after laryngectomy.
Authors: Samantha K Denning; Michael A Valleau; William J Pelowski; Claire M Chaisson; Kelli E Grimes; Byron D Erath Journal: PLoS One Date: 2021-09-13 Impact factor: 3.240