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BACKGROUND: Cough both protects and clears the airway. Cough has three phases: breathing in (inspiration), closure of the glottis, and a forced expiratory effort. Chronic cough has a negative, far‐reaching impact on quality of life. Few effective medical treatments for individuals with unexplained (idiopathic/refractory) chronic cough (UCC) are known. For this group, current guidelines advocate the use of gabapentin. Speech and language therapy (SLT) has been considered as a non‐pharmacological option for managing UCC without the risks and side effects associated with pharmacological agents, and this review considers the evidence from randomised controlled trials (RCTs) evaluating the effectiveness of SLT in this context. OBJECTIVES: To evaluate the effectiveness of speech and language therapy for treatment of people with unexplained (idiopathic/refractory) chronic cough. SEARCH METHODS: We searched the Cochrane Airways Trials Register, CENTRAL, MEDLINE, Embase, CINAHL, trials registries, and reference lists of included studies. Our most recent search was 8 February 2019. SELECTION CRITERIA: We included RCTs in which participants had a diagnosis of UCC having undergone a full diagnostic workup to exclude an underlying cause, as per published guidelines or local protocols, and where the intervention included speech and language therapy techniques for UCC. DATA COLLECTION AND ANALYSIS: Two review authors independently screened the titles and abstracts of 94 records. Two clinical trials, represented in 10 study reports, met our predefined inclusion criteria. Two review authors independently assessed risk of bias for each study and extracted outcome data. We analysed dichotomous data as odds ratios (ORs), and continuous data as mean differences (MDs) or geometric mean differences. We used standard methods recommended by Cochrane. Our primary outcomes were health‐related quality of life (HRQoL) and serious adverse events (SAEs). MAIN RESULTS: We found two studies involving 162 adults that met our inclusion criteria. Neither of the two studies included children. The duration of treatment and length of sessions varied between studies from four sessions delivered weekly, to four sessions over two months. Similarly, length of sessions varied slightly from one 60‐minute session and three 45‐minute sessions to four 30‐minute sessions. The control interventions were healthy lifestyle advice in both studies. One study contributed HRQoL data, using the Leicester Cough Questionnaire (LCQ), and we judged the quality of the evidence to be low using the GRADE approach. Data were reported as between‐group difference from baseline to four weeks (MD 1.53, 95% confidence interval (CI) 0.21 to 2.85; participants = 71), revealing a statistically significant benefit for people receiving a physiotherapy and speech and language therapy intervention (PSALTI) versus control. However, the difference between PSALTI and control was not observed between week four and three months. The same study provided information on SAEs, and there were no SAEs in either the PSALTI or control arms. Using the GRADE approach we judged the quality of evidence for this outcome to be low. Data were also available for our prespecified secondary outcomes. In each case data were provided by only one study, therefore there were no opportunities for aggregation; we judged the quality of this evidence to be low for each outcome. A significant difference favouring therapy was demonstrated for: objective cough counts (ratio for mean coughs per hour on treatment was 59% (95% CI 37% to 95%) relative to control; participants = 71); symptom score (MD 9.80, 95% CI 4.50 to 15.10; participants = 87); and clinical improvement as defined by trialists (OR 48.13, 95% CI 13.53 to 171.25; participants = 87). There was no significant difference between therapy and control regarding subjective measures of cough (MD on visual analogue scale of cough severity: −9.72, 95% CI −20.80 to 1.36; participants = 71) and cough reflex sensitivity (capsaicin concentration to induce five coughs: 1.11 (95% CI 0.80 to 1.54; participants = 49) times higher on treatment than on control). One study reported data on adverse events, and there were no adverse events reported in either the therapy or control arms of the study. AUTHORS' CONCLUSIONS: The paucity of data in this review highlights the need for more controlled trial data examining the efficacy of SLT interventions in the management of UCC. Although a large number of studies were found in the initial search as per protocol, we could include only two studies in the review. In addition, this review highlights that endpoints vary between published studies. The improvements in HRQoL (LCQ) and reduction in 24‐hour cough frequency seen with the PSALTI intervention were statistically significant but short‐lived, with the between‐group difference lasting up to four weeks only. Further studies are required to replicate these findings and to investigate the effects of SLT interventions over time. It is clear that SLT interventions vary between studies. Further research is needed to understand which aspects of SLT interventions are most effective in reducing cough (both objective cough frequency and subjective measures of cough) and improving HRQoL. We consider these endpoints to be clinically important. It is also important for future studies to report information on adverse events. Because of the paucity of data, we can draw no robust conclusions regarding the efficacy of SLT interventions for improving outcomes in unexplained chronic cough. Our review identifies the need for further high‐quality research, with comparable endpoints to inform robust conclusions.

Background Asthma is a heterogenous disease characterised by chronic airway inflammation and variable airflow obstruction. We use surrogate markers of inflammation and evidence of atopy to help aid the diagnosis and monitor disease. The aim of this project was to explore the relationship of markers of eosinophilia to asthma symptoms in new patients presenting to difficult asthma clinics. To date, there is very limited data linking eosinophilic inflammation and the severity of asthma symptoms. Objective To investigate the relationship between sputum and blood eosinophilia, exhaled nitric oxide and asthma symptoms as measured using asthma control test (ACT). Method This was a prospective cohort study. Data was collected from patients attending difficult asthma clinics fulfilling the following criteria: New patients, a diagnosis of asthma and a complete data set from initial clinic work-up (FeNO, Blood and sputum eosinophils, ACT on the same day). Patients were excluded if they were on oral steroids at the time of presentation. Results A total of 25 patients were included in the study. The ratio of female to male was 4:1. The mean age of the patients was 39. All patients were step 4+of the BTS asthma management. The was no correlation between any of the markers of eosinophilic inflammation and ACT scores. Discussion The lack of robust data looking into the relationship between markers of eosinophilia and symptom control poses a question as to whether we are measuring the right outcomes. With the known adverse effects of steroids, a degree of certainty that driving down markers of eosinophilia provides benefit to the patient is crucial. Asthma is such a clinical disease with a broad spectrum of symptoms. Therefore, the patients’ subjective level of symptom control should be paramount in managing the disease and tailoring their treatment. Work is ongoing to expand across multiple sites to explore this further.

Introduction and Objectives Inducible Laryngeal Obstruction (Ilo) is poorly understood, in terms of aetiology and onset by patients and clinicians. Patients presenting to our Tertiary Airways service commonly seek an understanding of the causes and triggers of their Ilo episodes. This study aims to develop a taxonomy of categories of patient-reported onset factors for Ilo from a sample of patients with confirmed Ilo on laryngoscopy, referred to our service. Method Within a nine month period, 103 patients referred to the Airways service (76% female, 24% male; age range 15–86 years (median=52)) with endoscopically-confirmed Ilo were asked to report historical factors contemporaneous with the initial onset of Ilo symptoms. A retrospective analysis of patient notes was also conducted to identify co-morbidities and additional onset factors. Single or multiple onset factors for each patient were collected, which were coded into initial themes. From these themes, second-order onset categories were developed which incorporated factors reported by all participants. Results Thirteen initial onset themes were developed. These included psychological factors (25% of patients), upper respiratory tract infections (23%), reflux (17%), chest infections (14%), medical conditions (12%) and surgery (10%). These were then refined into a taxonomy of five categories of onset factors: Respiratory Tract Infections and Viruses (40% of patients) Underlying Medical Conditions, e.g., rhinitis with post nasal drip, reflux (34%) Psychological difficulties (25%) Irritants, e.g., medication (23%) Exercise (7%) Only one patient had onset factors in multiple categories, indicating that these categories are largely independent of each other. The prevalence of certain onset factors was mediated to some degree by age, e.g., medical conditions were more frequent factors for older participants, whereas exercise was a more common factor in younger participants. Conclusions This study demonstrates patient-reported onset factors for Ilo can be usefully translated into a detailed taxonomy based on specific conditions/triggers. This understanding may be useful in furthering our understanding, both of common trigger and onset factors that can be communicated to patients, and may help to inform therapeutic interventions aimed at the active self-management of Ilo.

Introduction: Our tertiary airways service offers specialist speech and language therapy (SLT) for vocal cord dysfunction and refractory chronic cough, face-to-face or via Skype™. Analysis of the Skype™ pilot suggested that the response to therapy was equivalent to face-to-face.We have reviewed patient satisfaction with both methods. Methods: A tailored patient satisfaction questionnaire was sent to all patients discharged from respiratory SLT between January and June 2014. Patients were invited to complete the questionnaire anonymously and return by post in a pre-paid envelope. Results: Twenty-six of 61 questionnaires were returned (response rate 43%). Patient satisfaction was very favourable with 96% pleased with the overall service provided. Further, 96% were happy to have engaged with SLT as a treatment option and felt they had been given enough information about why they had been referred. We compared data from those receiving traditional clinician-facing appointments (n=18) with those having virtual consultations (n=8). Approximately a third found traditional clinic appointment times inconvenient compared to 0% over Skype™. Of the Skype™ cohort 100% patient satisfaction was reported for all questions compared with 84% from the traditional treatment delivery mode. Conclusions: Listening to patients9 views is essential to providing a patient -centred health service. Identifying such a favourable patient satisfaction response emphasises the importance of respiratory SLT. Based on the feedback received virtual SLT consultations are now routinely offered to patients who struggle to attend traditional clinic appointments.

Laryngopharyngeal reflux (LPR) can induce laryngeal hyper-responsiveness, a unifying feature underlying chronic cough and vocal cord dysfunction. The diagnosis of LPR currently relies on invasive oesophageal pH impedance testing. We compared symptoms, laryngeal signs and salivary pepsin as potential diagnostic methods for identifying LPR in patients with upper airway symptoms.Symptoms were assessed using the Reflux Symptom Index (RSI) and signs of laryngeal inflammation quantified using the Reflux Finding Score (RFS) during laryngoscopy. Saliva samples were analysed for the presence of pepsin. A sub-group of patients with severe symptoms and signs of LPR were investigated with oesophageal pH monitoring and impedance study.Seventy eight patients with chronic cough and/or suspected vocal cord dysfunction were recruited, mean (SD) age, 54.6 (15.6) years. The majority (87%) had significant symptoms of reflux (RSI13). There were clinical signs of LPR (RFS7) in 51% of cases. Pepsin was detected in the saliva of 63% of subjects and 78% of those with a high RFS. Salivary pepsin had a sensitivity of 78% and specificity of 53% for predicting a high RFS. There was a correlation between the RSI and RFS (r = 0.51, p 0.001) and between the severity of laryngeal inflammation and the concentration of pepsin (r = 0.28, p = 0.01). All cases investigated with pH-impedance study had objective evidence of proximal reflux.Salivary pepsin may be used as a screening adjunct to supplement the RFS in the clinical workup of patients with extra-oesophageal symptoms and upper respiratory tract presentations of reflux.

Background Patients that have chronic respiratory disease (CRD) and breathing pattern disorders (BPD) have a higher prevalence of anxiety and depression than the general population. These patients have worse respiratory health outcomes and in addition, their psychological problems are often left undiagnosed and untreated. Little is known about how anxiety and depression varies between CRD and BPD. Methods This prospective study involved screening patients attending secondary and tertiary respiratory clinics over an eight-week period. Patients were asked to complete the Hospital Anxiety and Depression Scale (HADS), Short Form-12 (SF-12) and St. George’s Respiratory Questionnaire (SGRQ). Demographical data and spirometry were also collected. Our primary outcome measure was the difference in these scores between patients with CRD (asthma, bronchiectasis and chronic obstructive pulmonary disease) compared to BPD (vocal cord dysfunction and dysfunctional breathing). Results 43 patients (21 with CRD and 22 with BPD) completed questionnaires; mean (SD) age 55 (17) yrs, 32 female. The overall prevalence of borderline anxiety was 17% and clinically significant anxiety 37%. The overall prevalence of borderline depression was 15% and clinically significant depression 29%. Of the patients with CRD, 29% had anxiety and 29% depression. In the BPD cohort, anxiety and depression were found in 45% and 30% of patients respectively. The difference between these groups was not statistically significant (anx: P = 0 .42; dep P = 0 .19). Independent predictors for anxiety and depression were higher SGRQ (anx: P = 0 .001; dep: P < 0 .0001), lower SF-12 Mental (anx: P < 0 .0001; dep: P < 0 .0001) and Physical (anx: P = 0 .042; dep: P = 0 .0027) Health Composite Scores, and lower FEV 1 % predicted (anx: P = 0 .0043; dep: P = 0 .016). Conclusions Anxiety and depression are present in a significant numbers of individuals in both CRD and BPD, with no difference between these groups, so efforts should be made to screen for psychological problems in patients with both CRD and BPD. Worse respiratory function and more symptoms are important contributing factors to patients’ risk of anxiety and depression.

Background and aim Many patients presenting to our complex breathlessness service appear to have breathing pattern disorders (BPDs). When suspected clinically, they are referred to a specialist respiratory physiotherapist for assessment and treatment. Here we describe the prevalence of identifiable breathing patterns and their clinical characteristics Methodology We performed a retrospective review of our clinical database including patients seen for initial physiotherapy assessment between December 2015 and June 2016. Patients underwent a standardised diagnostic assessment (clinical history, physiotherapy assessment, lung function and Nijmegan questionnaire). Results Data from 43 patients with confirmed BPD were included, 77% female, mean age 58 yrs. Relevant respiratory comorbidities included chronic cough (33%), asthma (30%) and vocal cord dysfunction (30%), with no comorbidity in 23%. Other associated conditions included musculoskeletal conditions (47%), chronic pain (44%), obesity (44%), nasal blockage (42%) and anxiety (31%). Four categories of breathing patterns were identified: thoracic dominant (58%), irregular/crescendo (51%), forced abdominal expiration (30%), and thoraco-abdominal asynchrony (2%). More than one BPD was seen in 35% of patients; only forced abdominal expiration and thoracic dominant didn’t co-exist. Conversely all pattern types could be found in isolation, although irregular/crescendo was more likely to co-exist with another pattern type. Conclusion Four separate breathing pattern types were identified, in isolation or in combination. Although anxiety was fairly common, many other associated disease and conditions were seen, especially relating to biomechanical factors. This preliminary data may enable clinicians to identify breathing pattern types, lead to the development of targeted treatment options and promote screening of particular conditions associated with BPD.

Introduction The Airways Service at Royal Preston Hospital receives tertiary referrals from across the UK. When a diagnosis of vocal cord dysfunction (VCD) or chronic cough is made and speech and language therapy (SLT) required, patients undergo weekly therapy (minimum four sessions), which some may struggle to attend due to pre-existing commitments and/or travel time. As SLT typically does not require ‘hands-on’ therapy we felt that Skype™ videoconferencing may be a useful mode of treatment delivery. We present our initial experience of this service. Methods A six-month pilot was completed whereby patients were offered SLT over Skype. Prior to therapy all patients were seen by the respiratory consultant and speech and language therapist for assessment and flexible laryngoscopy. Patients required confidential webcam access and proficiency. Symptom questionnaires were completed pre and post therapy (for VCD the 12 item VCDQ; for chronic cough the 19-item LCQ), and patient satisfaction questionnaires and flexible laryngoscopy performed post therapy. Results Eleven people have completed SLT over Skype™ to date, and all demonstrated improvement in symptoms following therapy. Patients with VCD showed a decrease in score on the VCDQ from median (range) 48 (12–53) pre therapy to 40 (7–42) post therapy [minimal clinical important difference (MCID) 5]. Patients with chronic cough showed an increase on the LCQ from median (range) 6.4 (4.6–8.2) pre therapy to 12.2 (10–14.6) post therapy (MCID 1.3). Improvements in laryngeal tension and sensitivity were noted in all cases. All patients gave positive feedback in their patient satisfaction questionnaire scoring “very satisfied” or greater. On three occasions Skype connection problems delayed sessions by a few days. Conclusions Virtual consultations provide the opportunity to treat patients in a more time efficient and practical way, and improvements in patient-reported symptoms and laryngeal appearances were similar to those of patients attending therapy sessions in chest clinic. This data gives support to pursue formalised tariffs for a specialised telehealth service. We feel that Skype should continue as a regular therapy option for patients and other members of the multi-disciplinary team (MDT) should consider this method of therapy delivery.

Introduction Our specialist service manages patients with vocal cord dysfunction (VCD), chronic cough (CC) and dysfunctional breathing (DB), and referrals have grown exponentially since we introduced this novel multi-disciplinary (MDT) model in 2006. The team comprises two severe asthma specialist physicians, two respiratory speech and language therapists (rSLT), a severe asthma nurse specialist, respiratory physiotherapist and clinical psychologist. Aims To describe the clinical characteristics of those referred and assess utilisation of the multi-disciplinary structure. Methods Patient demographics and clinical data were retrospectively collated from clinical records of patients referred between January and December 2014. Results The service received 249 referrals. Excluding patients still in treatment or who failed to attend initial assessment, 141 complete data sets were available for analysis: 71% female; mean (range) age 55 (18–79) years. Assessment requests were for VCD (71%), CC (28%) or both (1%) and over half were from NW severe asthma centres or extra-regional specialist centres. The majority of referrals were from hospital consultants (72%), with the remainder from GPs (17%) and AHPs (11%). For VCD there was 73% agreement between the clinical suspicion on referral and nasendoscopic assessment. Approximately half had evidence of co-existent reflux (52%) and a third (29%) had nasal disease. The majority were seen by more than one member of the MDT team; all by a specialist physician and a rSLT, 43% by respiratory physiotherapy, and 7% clinical psychology. In the VCD cohort 64% had a previous asthma diagnosis and this was confirmed in the majority (93%) – 49(82%) were ≥Step 3 on BTS/SIGN guidelines; 43% were additionally referred for DB assessment; 78 flow volume loops were available and 31 (40%) were suggestive of extra thoracic inspiratory airway obstruction. Sixty-seven patients (48%) received rSLT management [median (range) 4(1–8) sessions] with a further 16(11%) scheduled to receive it post medical intervention. Of those who completed treatment, 63% had clinically improved presentation on discharge nasendoscopy. Conclusions A large proportion of patients referred to a specialist service for patients with complex breathlessness require multi-disciplinary intervention. There is a significant incidence of VCD and DB in patients with severe complex asthma. Of those receiving rSLT interventions, outcome was extremely effective at reducing symptoms.

Introduction Pulmonary rehabilitation (PR) programs use multidisciplinary teams to optimise physical and social functioning of patients with chronic respiratory impairment. Such patients demonstrate an increased prevalence of oropharyngeal dysphagia as a consequence of impaired co-ordination between respiration and swallowing function. Often patients will not be aware of the warning signs of dysphagia and unfortunately will not be seen by a speech and language therapist until they are admitted to hospital. We report the outcomes of a pilot scheme whereby such patients underwent education, assessment and treatment for dysphagia as part of their PR programme.. Methods The pilot scheme ran between June 2013 and May 2014. Intervention consisted of: (1) a one hour group education session on the signs, symptoms and risks of dysphagia; (2) screening for oropharyngeal dysphagia; and (3) individual outpatient management in Airways Clinic. The majority of patients attending the education sessions had a diagnosis of Chronic Obstructive Pulmonary Disease (COPD). Results The education programme was delivered to 72 patients, and resulted in a significant improvement in dysphagia knowledge. The average score pre education was 3/11 and post education was 8/11. Fourteen patients (19%) exhibited or reported symptoms of dysphagia. Of these two patients were overtly aspirating and required food/fluid modification and seven patient’s required instrumental assessment in the form of fibre endoscopic evaluation of swallowing (FEES). During FEES, three patients showed penetration of food/ fluids and were at risk of silent aspiration. These patients attended for further SLT where diet/ fluids were modified, posture was assessed and dysphagia therapy was introduced. Conclusions Dysphagia education and management of patients in PR can contribute the early identification, patient awareness and self-management of dysphagia. We have confirmed that undiagnosed but clinically important dysphagia is present in patients undergoing PR. We are investigating whether improved dysphagia knowledge and early identification of dysphagia symptoms leads to reduced exacerbations and improved quality of life.

Background Laryngopharyngeal reflux (LPR) is implicated in inducing laryngeal hyper-responsiveness which is a unifying feature underlying chronic cough and vocal cord dysfunction. A lack of response to standard anti-reflux therapy in patients with LPR may be due to persistence of non-acid-reflux and pepsin causing ongoing laryngeal epithelial inflammation. We investigated: (a) the prevalence of pepsin reflux in respiratory patients requiring nasendoscopy for the investigation of upper airway symptoms; (b) the performance of commonly used clinical LPR-diagnostic tools in predicting the presence of salivary pepsin. Methods Subjects had symptoms and signs of laryngeal inflammation quantified using, the Reflux Symptom Index (RSI) and Reflux Finding Score (RFS). Salivary pepsin was measured with a lateral flow device using monoclonal antibody labelling (Peptest, RDBiomed). Patients with severe signs of laryngeal inflammation were referred for impedance-pH oesophageal studies to assess for objective evidence of reflux. Results Of the 78 subjects recruited, 76% were female, mean age 55 (range 17–82). Ten were undergoing investigation for chronic cough, and 68 for possible vocal cord dysfunction (confirmed in 45). 30 had concomitant asthma, and 42 were prescribed anti-reflux treatment. 87% had a high RSI, and 51% a high RFS. Pepsin was detected in the saliva of 49/78 subjects (63%), and prevalence did not vary significantly between treatment group. There was a weak correlation between the RFS and pepsin concentration (r=0.28, p=0.01) and the positive and negative predictive values for pepsin detection for those with a high RFS were 63% and 69% respectively. To date all 8 patients tested have had significant proximal reflux on impedance study, of which 6 had a positive pepsin assay. Conclusion Salivary pepsin was frequently present in patients with upper airway symptoms, but only weakly related to clinical findings of reflux, suggesting a high prevalence of LPR that is not associated with typical laryngeal findings. The significance of such sub-clinical reflux remains to be seen however the use of pepsin assay in patients with upper airway symptoms may be most valuable in directing diagnosis in milder cases where symptoms and signs lack specificity and the condition may otherwise be missed.

Background Vocal Cord Dysfunction (VCD) is typically reported to affect young females and has been associated with a psychiatric history. We run a multidisciplinary-based service for VCD patients with input from specialist speech and language therapy, physiotherapy and psychology. We investigated the demographics of our patient cohort with VCD, its association with anxiety and depression and whether this affected treatment response. Methods All patients referred for specialist speech and language therapy at the Royal Preston Hospital Airways Clinic between June 2006 and May 2011 with VCD confirmed by endoscopy were included. During routine clinical care data were collected including demographic details and comorbidities. Patients were also asked to complete the Hospital Anxiety and Depression (HAD) questionnaire. Subjective symptomatic improvement was recorded at patient follow-up visits. Results A total of 95 patients were eligible for study inclusion: 73.7% were female with a median age of 53 (17–83) years while men were older at 59 (37–80) years. Medical comorbidities included asthma (56.8%), reflux (47.4%), chronic cough (17.9%), nasal disease (16.8%) and neurological disease (12.6%). A history of confirmed psychiatric disease was noted in 38.9%. In 43 patients who completed HAD scores, moderate or severe anxiety was found in 41.8% and depression in 23.3%. Response to treatment was excellent (67% showing clinical improvement) and this was independent of medical or psychological comorbidity. Conclusions Our data suggest that VCD affects a wide range of patients, in terms of age, gender, comorbidities and HAD scores which do not impact on treatment response, as a result of the multidisciplinary approach and this success is comparable to most asthma therapies when patient compliance and education are accounted for. It challenges many previously held concepts and supports a multidisciplinary approach to treating VCD.