Active clinical trials for "Respiratory Sounds"

Stridor is a respiratory noise caused by partial obstruction of the large airways at the level of the pharynx, larynx and/or trachea. The second most common cause of stridor is vocal cord paralysis. Awake nasolaryngoscopyn (ANL) is regarded as the gold standard for the diagnosis of laryngomalacia. However, ANL has some drawbacks as it may cause discomfort for the patient and the laryngeal view may be obscured due to patient movement or anatomical variations. Ultrasound (US) is a noninvasive, painless, radiation free, well tolerated imaging technique. Evaluation of the dynamic characteristics of the glottis by US revealed perfect reliability in comparison to nasolryngoscopy suggesting that US can be useful in the assessment of laryngeal adduction. The investigator hypothesize that laryngeal US can be an accurate and reliable adjunct in the diagnosis of functional and anatomical causes of stridor and dysphonia in the pediatric population.

Karmel Sonix Ltd has developed the Personal WheezoMeter a hand-held pulmonary sounds analyzer that utilizes contact sensors to acquire, amplify, filter, record and quantify the presence of wheezing. When used to monitor conditions such as asthma, this device should be used under the direction of a physician or licensed healthcare professional. The device is intended for use with pediatric and adult patients in both home and clinical settings. The purpose of the study is to determine whether Wz% and change in Wz% correlate with symptoms and change in symptoms at least as well as FEV1 and change in FEV1.0. Additional information to be obtained from the study will be to determine whether there is a symptom threshold at which a patient seeks rescue medications and if so, to determine the value of Wz% and FEV1.0 at this point (Wz%, FEV1.0 thresholds). The study will also provide information on the within patient and whole group correlations between Wz% and FEV.

This observation study is to evaluate the application of the spectral analysis and characteristic parameters of digitized respiratory sounds in the confirmation of the position of the balloon of endobronchial blockers

Reactive airway diseases is a common respiratory diseases affecting 1-18% of the population in different countries. It carries a significant burden to children, their families, the healthcare system and the overall community.The purpose of the study is to delineate the prevalence of abnormal nasal finding in wheezy children and evaluate the role of the endoscopic examination of the nose in evaluation and management of a wheezy child.Patients and methods:The study will be conducted as a prospective case series including all children having chest wheezes, aged from two years to eighteen years, attending emergency unit of assuit university children hospital

literature on use of the ultrasound (US) in extubation decisions in cervical spine surgery is scarce.The aim of this study will be to evaluate the utility of US as an aid for decision making for extubation in elective cervical spine surgery (anterior approach) operations and as a predictor for postextubation stridor in these operations

In the present trial, the StethoMe electronic stethoscope will be used for pulmonary auscultation and recording of lung sounds in the pediatric study population.