In many asthmatics, the condition varies greatly over relatively short periods of time and even from day to night or hour to hour, which can make it difficult to evaluate the severity of the condition and the response to treatment.
Evaluation is further complicated when many of the patients, including children and the elderly, cannot cooperate with the tests of lung function used to document asthma. Moreover, tests of lung function such as spirometry and peak flow monitoring are ‘effort dependent’ and are not reliable especially in young or elderly patients.
Wheezing is the symptom of which virtually all asthmatics complain. iSonea has developed the technology to measure this wheeze with great accuracy. The devices require no active cooperation on the part of the patient and can be used in patients two years and older to record and analyze breath sounds for clinical assessment.