View clinical trials related to Cough.
Filter by:To develop and validate a library of cough spectrum from a target of 1000 cough acoustics. Coughs arising from upper respiratory infection, lower chest infections, asthma, allergic conditions are included in the study. Cough acoustic in absence of respiratory disease is also included. This is a prospective observation cohort study recruiting children below the age of 16 years old in 2 arms : (1) Patients with respiratory conditions presenting with cough and (2) Well patients without active coughing.
The investigators aimed to investigate the effects of pretreatment with different doses of dexmedetomidine on the cough caused by fentanyl during anesthetic induction. Patients undergoing elective surgeries under general anesthesia will be randomly allocated to 4 groups (n = 60, each group). Dexmedetomidine 0, 0.03, 0.06, and 0.09 μg/kg/min will be pump-administered in 10 mins to groups I, II, III, and IV, respectively, followed by the induction of general anesthesia with intravenous fentanyl 4 μg/kg. The incidences and severity of cough that occurred within 2 min after the injection of fentanyl will be recorded, and the incidences of cardiovascular adverse events that occurred between the administration of the dexmedetomidine infusion and 2 min after tracheal intubation will be recorded.
The objectives of this study are to determine the sensory-mechanical responses to Eucapneic Voluntary Hyperventilation (EVH) and Mannitol in individuals with cough variant asthma (CVA) and methacholine-induced cough with normal airway sensitivity (COUGH) and compare these responses to a control group of healthy individuals without asthma or chronic cough. We hypothesize: 1. EVH and Mannitol cause dyspnea, cough, small airway obstruction with resultant dynamic hyperinflation, gas trapping and autoPEEP in individuals with CVA and COUGH, but not healthy controls. 2. The sensory-mechanical responses to both hyperosmolar challenges (EVH and Mannitol) are comparable within groups (CVA, COUGH and healthy controls).
The aim of this study is described as follows, 1. To establish a validated method to test cough reflex sensitivity conducted by transient receptor potential vanilloid 1(TRPV1). 2. To observe the variance of cough reflex sensitivity conducted by transient receptor potential ankyrin 1(TRPA1) of chronic patients and the relationship between cough reflex sensitivity conducted by TRPA1 and conducted by TRPV1. 3. To study the distribution of TRPA1 and TRPV1 channels and their relationship to cough reflex sensitivity.
This study aims to assess the presence and the intensity of voluntary and cough reflex in patients with amyotrophic lateral sclerosis (ALS), comparing the results with the healthy control group. The assessment of the cough is fundamental to verify the mechanism of airways protection which is particularly compromised in ALS patients. Objective parameters of voluntary and reflex cough would be measured by the spirometer. The reflex of cough would be elicited by a solution of citric acid through an ultrasonic nebulizer.
The purpose of this study is to determine if Pregabalin, a medication used for the treatment of seizures and chronic pain, can be used to effectively treat people who suffer from non-asthmatic chronic cough (cough lasting over 8 weeks).
Cough is a common symptom of respiratory medicine clinic patients, which has complex etiology and wide-ranging. Cough is usually divided into three categories by time: acute cough, subacute cough and chronic cough. Subacute has a 3~8 weeks course of disease. Its main etiology is postinfectious cough, which is mostly secondary to viral infection.Considering its overexpression in postinfectious patient, Cysteinyl leukotriene (CysLTs) plays a role in gathering eosinophils to respiratory. The level of FENO has a significant correlation with inflammatory airway eosinophils. While CysLTs overexpressed in vivo, the level of FENO may increase. Montelukast, as CysLTs-receptor-1 antagonists， plays a role of controlling airway inflammation and decrease airway high activity by suppressing the biological activity of CysLTs. It is effective in theory to therapy sub-acute cough by Montelukast, to short the course and to relieve cough symptoms as soon as possible. The aim is to research whether FENO can be used as a biomarker to optimized treatment regimen of sub-acute cough.
The purpose of this study is to investigate the effectiveness of oral procaterol in treatment of non-asthmatic patients who suffer from persistent cough following upper respiratory tract infection (URTI).
We have noticed a group of patients presenting with a longstanding wet cough which has often been treated as asthma. The cough is productive of sputum which frequently contains bacteria, but does not resolve with standard antibiotic treatment. A very similar cough is seen in subjects who smoke, have exposure to airbourne dusts or chemicals or have a condition known as bronchiectasis, but these problems have already been excluded. We have found that prolonged treatment with an antibiotic called azithromycin is very effective but using azithromycin in this way is not licensed and there is currently no trial evidence to support its use. This research will evaluate the clinical benefit of low dose azithromycin to determine if this is an effective and safe treatment for these patients. It will also involve a detailed investigation of these patients to determine whether they have enough in common to believe we are describing a new condition.
The aims of this study are - Demonstrating superior efficacy of Prospan® Hustenzäpfchen compared to Placebo in children suffering from acute bronchitis accompanied by coughing - Characterisation of safety and tolerability of Prospan® Hustenzäpfchen in comparison with placebo.