The effect of photobiomodulation on hearing loss: A systematic review.

OBJECTIVES: To assess outcomes associated with photobiomodulation therapy (PBMT) for hearing loss in human and animal studies. DESIGN: Systematic review and narrative synthesis in accordance with PRISMA guidelines. SETTING: Data bases searched: MEDLINE, EMBASE, CENTRAL, ClinicalTrials.gov and Web of Science. No limits were placed on language or year of publication. Review conducted in accordance with the PRISMA 2020 statement. PARTICIPANTS: All human and animal subjects treated with PBMT for hearing loss. MAIN OUTCOME MEASURES: Pre- and post-PBMT audio metric outcomes. RESULTS: Searches identified 122 abstracts and 49 full text articles. Of these, 17 studies met the inclusion criteria, reporting outcomes in 327 animals (11 studies), 30 humans (1 study), and 40 animal specimens (5 studies). PBMT parameters included 6 different wavelengths: 908 nm (1 study), 810 nm (1 study), 532 & 635 nm (1 study), 830 nm (3 studies), 808 nm (11 studies). The duration ranged from 4 to 60 minutes in a session, and the follow-up ranged from 5-28 days. Outcomes improved significantly when wavelengths within the range of 800-830 nm were used, and with greater duration of PBMT exposure. Included studies predominantly consisted of non-randomized controlled trials (10 studies). CONCLUSIONS: Hearing outcomes following PBMT appear to be superior to no PBMT for subjects with hearing loss, although higher level evidence is required to verify this. PBMT enables concentrated, focused delivery of light therapy to the inner ear through a non-invasive manner with minimal side effects. As a result of heterogeneity in reporting PBMT parameters and outcomes across the included studies, direct comparison is challenging.

The effect of photobiomodulation on tinnitus: a systematic review.

OBJECTIVE: To establish outcomes following photobiomodulation therapy for tinnitus in humans and animal studies. METHODS: A systematic review and narrative synthesis was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. The databases searched were: Medline, Embase, Cochrane Central Register of Controlled Trials ('Central'), ClinicalTrials.gov and Web of Science including the Web of Science Core collection. There were no limits on language or year of publication. RESULTS: The searches identified 194 abstracts and 61 full texts. Twenty-eight studies met the inclusion criteria, reporting outcomes in 1483 humans (26 studies) and 34 animals (2 studies). Photobiomodulation therapy parameters included 10 different wavelengths, and duration ranged from 9 seconds to 30 minutes per session. Follow up ranged from 7 days to 6 months. CONCLUSION: Tinnitus outcomes following photobiomodulation therapy are generally positive and superior to no photobiomodulation therapy; however, evidence of long-term therapeutic benefit is deficient. Photobiomodulation therapy enables concentrated, focused delivery of light therapy to the inner ear through a non-invasive manner, with minimal side effects.

Awareness, Use and Outlook of Complementary and Alternative Medicine (CAM) Options in an Underserved, Uninsured Minority Cancer Patient Population.

Integrative oncology aims to coordinate the delivery of conventional medicine and evidence-supported complementary and alternative medicine (CAM) to patients receiving cancer care. This field developed out of an increased interest in CAM usage among cancer patients. However, CAM use among medically underserved cancer patients remains to be well characterized. We evaluated CAM awareness as well as prevalence and characteristics of CAM use in 170 consecutive, medically underserved cancer patients presenting to a large, academic, inner-city cancer clinic, using a survey tool. Fifty-three participants declined participation and 17 survey results were incomplete. Therefore, 100 survey results were included in the final analysis. There were 65 males and 35 females in the survey with a mean age of 64.2 years. About 98% of the respondents were African American while 2% identified themselves as Hispanic. About 45% of patients had metastatic cancer, 24% had early-stage disease while 31% of patients were not aware of the stage of their cancer. About 55% patients had elementary school or lower level of education while only 16% had a college degree or higher. About 92% of respondents were unemployed. Some knowledge of CAM was reported by 22% of patients, while CAM use was reported in only 16% of patients. Female sex and college degree were significantly associated with CAM use. The most commonly used CAM modality was meditation (56%), followed by herbal remedies (31%), yoga (31%), and acupuncture (12%). Among CAM users, a majority used multiple CAM therapies. All users reported benefit from CAM use. Emotional wellbeing was the most common benefit followed by improvement in treatment related adverse effects, chemotherapy related symptoms, pain, and sleep. Even though the majority of our surveyed patients never used CAM, 90% of non-users were interested in gaining more information about the various CAM options and exploring its use and potential benefits. The majority (70%) wanted their primary oncologist to provide information about CAM options and discuss its safety and potential complementary benefit in management of their cancer and associated symptoms.

Triple Canal Occlusion for the Treatment of Intractable Menière's Disease.

OBJECTIVE: Menière's disease can be a debilitating condition but in most cases the symptoms are controlled by lifestyle changes and medical management. However, some patients remain symptomatic despite medical treatment and have the option of more invasive surgical treatments. Surgical intervention for Menière's includes a range of interventions from grommet insertion, intratympanic steroids/Gentamicin, endolymphatic sac decompression, labyrinthectomy, and vestibular neurectomy. A recently described technique involves the occlusion of all three semi-circular canals as an alternative in intractable Menière's disease. STUDY DESIGN: This is a case series of three patients who underwent triple canal occlusion for the treatment of intractable Menière's disease. SETTING: Patients were selected from those who were referred to Queen Elizabeth Hospital in Birmingham, a tertiary referral center. PATIENTS: Patients who were severely symptomatic despite medical treatment who were considering ablative therapy were offered the option of triple canal occlusion as an alternative. INTERVENTION: We report a series of Menière's patients treated by triple canal occlusion, describe the rationale behind this intervention, the surgical technique, and preliminary results. MAIN OUTCOME MEASURE: Each patient was followed up for a minimum of 2 years following the procedure. The main outcomes measures were the class of vertigo control and hearing threshold levels according to the American Academy of Otolaryngology-Head and Neck Surgery guidelines. RESULTS: Of the three patients, two were men and one was woman, the age range was 45 years to 61 years old. Two patients with unilateral disease achieved class A control whereas one patient with bilateral disease achieved class B control. Two patients who underwent the procedure had little or no effect to their hearing on the treated side however one patient suffered a 30 dB hearing loss on the operative side. CONCLUSIONS: Based on our limited experience and the early reports in the literature we consider that there are potential patient benefits for triple canal occlusion for intractable Menière's disease as an alternative to vestibular neurectomy due to the reduced morbidity and long-term efficacy.