Novel Respiratory Therapy for the Improvement of Post COVID Condition Symptoms: A Case Series.

INTRODUCTION: Speech-language pathologists are seeing a growing number of patients whose voice and upper airway symptoms are complicated by dyspnea, cognitive difficulties, anxiety, extreme fatigue, and other debilitating post COVID symptoms. These patients are often less responsive to traditional speech-language pathology treatments and there is emerging literature that suggests dysfunctional breathing (DB) might contribute to dyspnea and other symptoms in this patient population. Treatment of DB through breathing retraining has been shown to improve breathing and successfully reduce symptoms similar to those seen in patients with long COVID. There is some preliminary evidence that breathing retraining is helpful for patients with post COVID condition symptoms. However, breathing retraining protocols tend to be heterogeneous and are often not systematic or well described. METHODS: This case series reports on an Integrative Breathing Therapy (IBT) protocol used in patients diagnosed with post COVID condition symptoms attending an otolaryngology clinic who presented with signs and symptoms of DB. A systematic evaluation of the biomechanical, biochemical, and psychophysiological dimensions of DB based on principles of IBT was performed on each patient to enable targeted patient-centered care. Patients were then provided with intensive breathing retraining that aimed to comprehensively improve breathing functionality in all these three dimensions of breathing. Treatment involved 6-12 sessions of weekly 1-hour group telehealth sessions combined with 2-4 individual sessions. RESULTS: All participants showed improvements in the parameters of DB measured and also reported a reduction in symptoms and improved daily function. CONCLUSIONS: These findings suggest that patients with long COVID who present with signs and symptoms of DB might respond positively to comprehensive and intensive breathing retraining that addresses biochemical, biomechanical, and psychophysiological dimensions of breathing. More research is required to further refine this protocol and confirm its effectiveness through a controlled trial.

Evaluating the use of baclofen as adjunct treatment for muscle tension dysphonia.

OBJECTIVE: To explore whether use of baclofen as adjunct treatment to voice therapy (VT) led to improvement in subjective throat symptoms in patients with primary muscle tension dysphonia (MTD). MTD is associated with excessive paralaryngeal muscle contraction, and baclofen is a muscle relaxant. STUDY DESIGN: Cross-sectional, questionnaire-based study. METHODS: An initial pool of patients, who were diagnosed with primary MTD and received 1+ VT session(s) at a single tertiary-care center from 2015 to 2019, were placed into either a baclofen group (prescribed 10 mg baclofen t.i.d. PRN along with VT) based on symptomatology or non-baclofen group (VT alone). They were administered questionnaires via postage mail or phone that included the Voice Handicap Index-10 (VHI-10), Reflux Symptom Index (RSI), and other survey elements. A retrospective chart review collected demographic and other clinical data from recruited participants. RESULTS: A total of 314 non-baclofen and 63 baclofen patients met the inclusion criteria of this study, with 37 non-baclofen patients (mean age = 47.5 years, 62.2% female) and 15 baclofen patients (mean age = 45.5 years, 73.3% female) recruited. There was no significant difference in mean [SD] VHI-10 scores (11.30 [8.20] vs. 12.60 [10.75]; p = 0.638) and RSI scores (13.46 [10.44] vs. 16.20 [10.65]; p = 0.398) between non-baclofen and baclofen groups, respectively. CONCLUSION: There was no significant difference in voice psychometric outcomes between non-baclofen and baclofen groups, measured primarily by the VHI-10 and RSI questionnaire components. Further studies are warranted to assess the efficacy and safety of baclofen as a therapeutic option for MTD.

Buteyko Breathing Technique for Exertion-Induced Paradoxical Vocal Fold Motion (EI-PVFM).

PURPOSE: The primary purpose of the current study was to determine the usefulness of Buteyko breathing technique (BBT) in reducing dyspnea in patients with one form of Paradoxical Vocal Fold Motion (PVFM), exertion-induced PVFM (EI-PVFM), concomitant with hyperventilation. The secondary purpose was to determine whether BBT had an effect on physiological markers of hyperventilation, as speculated by BBT theory: respiratory tidal minute volume (RTMV), end-tidal carbon dioxide (ETCO2), and resting heart rate (HR). METHODS: Using a within-subjects, repeated measures group design, 12 participants with EI-PVFM and hyperventilation underwent 12 weeks of BBT, following an initial no-treatment control condition. Outcome measures of PVFM-dyspnea frequency and severity-and of hyperventilation-HR, RTMV, and ETCO2-were acquired pre- and post-treatment. RESULTS: Results showed post-treatment decreases in dyspnea severity, HR, and RTMV, as well as increases in ETCO2. Decreases in dyspnea and RTMV measures remained after correction for alpha inflation. CONCLUSIONS: Findings suggest BBT may be useful for some individuals with EI-PVFM and hyperventilation. The high prevalence of hyperventilation in EI-PVFM found in the current study warrants further investigation.

Laryngeal Manipulation for Dysphagia with Muscle Tension Dysphonia.

The purpose of the article is to describe the use of laryngeal manipulation as a treatment for dysphagia resulting from excessive paralaryngeal muscle tension and to identify the patients likely to have symptomatic improvement. This is a retrospective single-center case series. A retrospective review identified patients from 2007 to 2013 with laryngeal manipulation for muscle tension dysphagia in an academic Otolaryngology practice. Subjects with dysphagia not attributable to an anatomic cause who attended therapy at least one time were included in the study. The primary outcome of the study was subjective improvement in dysphagia symptoms (yes/no) during follow-up. Symptoms, demographic information, treatment, and response to therapy were recorded. The Kruskal-Wallis test was used for analysis of continuous variables, while a Chi-squared test or fisher's exact test was used for analysis of all categorical variables. Forty-four subjects were included, consisting of 37 women and 7 men. Subjective improvement in dysphagia was seen in 34 subjects (77.3%). No significant differences were seen in improvement based on gender (p = 0.3223), race (p = 0.4317), number of sessions with a speech pathologist (p = 0.3198), or presenting symptoms including hoarseness (p = 0.0853), pain (p = 1.000), globus (p = 0.2834), and cough (p = 1.000). We found subjective improvement with laryngeal manipulation as reported during follow-up visits to clinic among individuals with muscle tension dysphagia. Patient age, presenting symptoms, and number of therapy sessions were not found to be significantly associated with resolution of symptoms.