Tracheal sounds have been the subject of many research studies. In this review, we
describe the state of the art, original work relevant to upper airways obstruction during sleep …

The apnea–hypopnea index (AHI) defines the number of breathing pauses (apneas) and/or
partial respiratory flow reductions (hypopneas) that last longer than 10s per hour of sleep …

Abstract Study Objectives: To evaluate the validity of a novel method of using tracheal sound
analysis for the diagnosis of sleep apnea-hypopnea syndrome. Design: Retrospective …

OBJECTIVE: To evaluate the suitability of compressed tracheal sound signal for screening
sleep-disordered breathing. METHODS: Thirty-three consecutive patients underwent a …

Study Objectives: Evaluation of apnea detection using a tracheal sound (TS) sensor during
sleep in patients with obstructive sleep apnea. Methods: Polysomnographic recordings of 32 …

Sleep apnoea syndrome is common in the general population and is currently
underdiagnosed. The aim of the present work was to develop a new tracheal sound feature …

The objective of the present work was to develop automated methods for the compressed
tracheal breathing sound analysis. Overnight tracheal breathing sound was recorded from …

BACKGROUND: Sleep-disordered breathing (SDB) is common and is associated with
increased risk for cardiovascular disease. However, most patients remain undiagnosed due …

Recent interest in the occurrence of sleep apnoea has brought about the development of
several methods of detecting apnoeas. Complete polygraphic evaluation of sleep involves …

Study Objectives: Portable devices for home sleep apnea testing are often limited by their
inability to discriminate sleep/wake status, possibly resulting in underestimations. Tracheal …