scholarly journals Prevalence of nocturnal cough in asthma and its potential as a marker for asthma control (MAC) in combination with sleep quality: protocol of a smartphone-based, multicentre, longitudinal observational study with two stages

BMJ Open ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. e026323 ◽  
Author(s):  
Peter Tinschert ◽  
Frank Rassouli ◽  
Filipe Barata ◽  
Claudia Steurer-Stey ◽  
Elgar Fleisch ◽  
...  

IntroductionNocturnal cough is a burdensome asthma symptom. However, knowledge about the prevalence of nocturnal cough in asthma is limited. Furthermore, prior research has shown that nocturnal cough and impaired sleep quality are associated with asthma control, but the association between these two symptoms remains unclear. This study further investigates the potential of these symptoms as markers for asthma control and the accuracy of automated, smartphone-based passive monitoring for nocturnal cough detection and sleep quality assessment.Methods and analysisThe study is a multicentre, longitudinal observational study with two stages. Sensor and questionnaire data of 94 individuals with asthma will be recorded for 28 nights by means of a smartphone. On the first and the last study day, a participant’s asthma will be clinically assessed, including spirometry and fractionated exhaled nitric oxide levels. Asthma control will be assessed by the Asthma Control Test and sleep quality by means of the Pittsburgh Sleep Quality Index. In addition, nocturnal coughs from smartphone microphone recordings will be labelled and counted by human annotators. Relatively unrestrictive eligibility criteria for study participation are set to support external validity of study results. Analysis of the first stage is concerned with the prevalence and trends of nocturnal cough and the accuracies of smartphone-based automated detection of nocturnal cough and sleep quality. In the second stage, patient-reported asthma control will be predicted in a mixed effects regression model with nocturnal cough frequencies and sleep quality of past nights as the main predictors.Ethics and disseminationThe study was reviewed and approved by the ethics commission responsible for research involving humans in eastern Switzerland (BASEC ID: 2017–01872). All study data will be anonymised on study termination. Results will be published in medical and technical peer-reviewed journals.Trial registration numberNCT03635710; Pre-results.

BMJ Open ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. e053100
Author(s):  
Reratilwe Ephenia Mphahlele ◽  
Omolemo Kitchin ◽  
R Masekela

ObjectiveTo identify reasons for poor asthma control in African children and adolescents.DesignSystematic reviewData sourcesPubMed, Scopus, CINHAL, PsycINFO, MEDLINE and Web of Science databases were systematically searched up to 31 May 2020. Hand searching was done on Sabinet, African Journal online and Google Scholar.Eligibility criteriaStudies identifying barriers to asthma control, where asthma control was assessed by the validated Asthma Control Test/Child Asthma Control Test and/or Asthma Control Questionnaire were included.Data extraction and synthesisTwo reviewers independently selected studies for inclusion with disagreements resolved by a research team discussion, including a third reviewer. Data were extracted using the Cochrane Effective Practice and Organization of Care data collection form. The quality of the included studies was assessed using the modified Newcastle-Ottawa quality assessment scale. Identified barriers were reported in a thematic narrative synthesis.Primary outcomesPoorly controlled asthma and associated factors.ResultsFrom 914 records, three studies conducted between 2014 and 2019 in Nigeria, Uganda and South Africa met the inclusion criteria. A total of 883 children aged 4–19 years were analysed. Older age, concurrent allergy and city-dwelling significantly impacted asthma control. Few children with asthma symptoms in the community had ever used inhaled corticosteroids (6.7%) and identified reasons included lack of asthma diagnosis (38.8%) and no prescribed treatment (47.6%).ConclusionAsthma control in African children is impacted by age, allergy, urbanisation and lack of access to asthma diagnosis and treatment. More studies focusing on identifying barriers to asthma control in Africa are needed.PROSPERORegistration no: CRD42020196755)


Author(s):  
Jordi Puigdellívol Grifell ◽  
Juan Pérez Estévez ◽  
Enrique Herrera Otto ◽  
Jordi Marcos ◽  
Mindaugas Gudelis

Objective: To evaluate the effectiveness and safety of a novel intra-articular formulation of hyaluronic acid (HA) to treat athletes with articular lesions. Methods: Multicenter, prospective, interventional, observational study analyzing the clinical evolution of athletes who received 2 or 3 intra-articular injections of HA. The study was scheduled in Visit 1 (week 0), Visit 2 (week 1), Visit 3 (week 2), Visit 4 (week 3), and Visit 5 (end of follow up, week 24). The change in Visual Analog Scale (VAS) of pain and in Knee Injury and Osteoarthritis Outcome Score (KOOS) and the rate of return to physical activity were evaluated upon treatment initiation for up to 24 weeks. The incidence of adverse events was recorded throughout the study. Results: Sixty patients were recruited: 28 (46.7%) in the 2-injection group and 32 (53.3%) in the 3-injection group. Mean VAS gradually decreased across the visits, with statistically significant reductions in both groups from Visit 2 to Visit 3 and to Visit 5 (P < 0.0001). Inter-group differences in the change in VAS from Visit 2 to Visit 5 were statistically comparable (P = 0.8271). At Visit 5, the KOOS of all subscales statistically improved in both treatment groups. At the end of follow-up (Visit 5), 75.9% of patients returned to sport in the overall population. Only one patient reported an adverse event. Conclusion: This novel formulation of HA is effective and safe for at least 24 weeks, resulting in a promising treatment option for athletes with articular lesions.


BMJ Open ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. e035885
Author(s):  
Gioia Mosler ◽  
Victoria Oyenuga ◽  
Emmanuel Addo-Yobo ◽  
Olayinka Olufunke Adeyeye ◽  
Refiloe Masekela ◽  
...  

IntroductionLittle is known about asthma control in the rising number of African children who suffer from this condition. The Achieving Control of Asthma in Children in Africa (ACACIA) study is an observational study collecting evidence about paediatric asthma in urban areas of Ghana, Malawi, Nigeria, South Africa, Uganda and Zimbabwe. The primary objectives are: (1) to identify 3000 children aged between 12 years and 14 years with asthma symptoms; and (2) to assess their asthma control, current treatment, knowledge of and attitudes to asthma and barriers to achieving good control. Secondary objective is to develop interventions addressing identified barriers to good symptom control.Methods and analysisEach centre will undertake screening to identify 500 school children with asthma symptoms using questions from the Global Asthma Network’s questionnaire. Children identified to have asthma symptoms will fill in a digital survey, including: Asthma Control Test, questions on medication usage and adherence, medical care, the Brief-Illness Perception questionnaire and environmental factors. Exhaled nitric oxide testing and prebronchodilator and postbronchodilator spirometry will be performed. A subgroup of children will participate in focus group discussions. Results will be analysed using descriptive statistics and comparative analysis. Informed by these results, we will assess the feasibility of potential interventions, including the adaption of a UK-based theatre performance about asthma attitudes and digital solutions to improve asthma management.Ethics and disseminationThe ACACIA study has been reviewed by the Queen Mary University of London Ethics of Research Committee in the UK. All African centres have received local ethical approval for this study. Study results will be published in academic journals and at conferences. Study outputs will be communicated to the public via newsfeeds on the ACACIA website and Twitter, and through news media outlets and other local dissemination.Trial registration number269211.


2020 ◽  
Vol Volume 13 ◽  
pp. 669-678
Author(s):  
Peter Tinschert ◽  
Frank Rassouli ◽  
Filipe Barata ◽  
Claudia Steurer-Stey ◽  
Elgar Fleisch ◽  
...  

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. TPS9647-TPS9647
Author(s):  
Michelle Christine Janelsins ◽  
Karen Michelle Mustian ◽  
Song Yao ◽  
Charles E. Heckler ◽  
Oxana Palesh ◽  
...  

TPS9647 Background: Chemotherapy-related cognitive impairment (CRCI) is a major concern for up to 75% of cancer patients that can negatively affect quality of life. Studies which have objectively assessed cognitive function (CF) in patients suggest that chemotherapy is associated with declines in multiple domains. A large, prospective longitudinal study with age- and gender- paired healthy controls is needed to confirm and expand these findings, to identify etiological mechanisms of CRCI, and to identify the best assessment methods for detecting CRCI. Methods: We are conducting a nationwide prospective observational study (N=1,200), conducted through the URCC CCOP Research Base and 23 CCOPs. The primary aim is to test the hypothesis that breast cancer and lymphoma patients receiving chemotherapy will have greater impairments in CRCI over time than a control comparison group. Breast cancer (stage I-IIIc) and lymphoma patients (intermediate/high grade disease) meet the following eligibility: 1) chemotherapy naïve, 2) ≥21 years of age, 3) no CNS disease, 4) scheduled to receive a standard course of chemotherapy, and 5) no concurrent radiation. Healthy control participants meet eligibility criteria 1-3 and are the same gender and age as paired patients. CF is assessed at pre-chemotherapy (Assess. 1), post-chemotherapy (Assess. 2), and 6 months post-chemotherapy in patients; their paired controls are assessed at the same time intervals. CF is measured via: 1) Computer-based CANTAB neuropsychological (NP) battery (assessing memory (primary aim), verbal memory, sustained attention, processing speed, and executive function (secondary aims)), 2) paper-based objective NP assessment (secondary aims), 3) phone-based objective NP assessment (tertiary aims), and 4) Single item, patient-reported CF (tertiary aims). Blood is collected at Assess. 1 and 2 to explore inflammatory and genetic mechanisms. 807 participants have been enrolled in 21 months. Funding: U10CA037420-26 Supp. MCJ; U10CA037420, GRM; & URCC/RPCI Grant, MCJ & CBA. Clinical trial information: NCT01382082.


2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Qinglin Zha ◽  
Seqi Lin ◽  
Chi Zhang ◽  
Christopher Chang ◽  
Hanrong Xue ◽  
...  

Xiaoqinglong granules (XQLG) has been shown to be an effective therapy in asthma animal models. We reviewed the literature and conducted this study to assess the impact of XQLG as an add-on therapy to treatment with fluticasone/salmeterol (seretide) in adult patients with mild-to-moderate, persistent asthma. A total of 178 patients were randomly assigned to receive XQLG and seretide or seretide plus placebo for 90 days. Asthma control was assessed by asthma control test (ACT), symptoms scores, FEV1, and PEF. Baseline patient-reported Chinese medicine (CM)-specific symptoms were analyzed to determine whether the symptoms may be possible indicators of treatment response by conducting latent class analysis (LCA). There was no statistically significant difference in ACT score between two groups. In the subset of 70 patients with symptoms defined by CM criteria, XQLG add-on therapy was found to significantly increase the levels of asthma control according to global initiative for asthma (GINA) guidelines (P=0.0329). There was no significant difference in another subset of 100 patients with relatively low levels of the above-mentioned symptoms (P=0.1291). Results of LCA suggest that patients with the six typical symptoms defined in CM may benefit from XQLG.


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