Mark B. Norman

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STUDY OBJECTIVES To evaluate the ability of the Sonomat to diagnose obstructive sleep apnea (OSA). DESIGN Prospective and randomized. SETTING Sleep laboratory and home. PARTICIPANTS 62 subjects; 54 with a clinical history of OSA and 8 normal control subjects. INTERVENTIONS N/A. MEASUREMENTS AND RESULTS Simultaneous PSG and Sonomat recordings were(More)
OBJECTIVES To evaluate sleep quality in patients with cystic fibrosis (CF). METHODS The Pittsburgh Sleep Quality Index (PSQI) questionnaire was administered to 37 CF patients with moderate to severe lung disease in a clinically stable state. Sleep studies were performed concurrently. PSQI scores were correlated with results of anthropometric variables,(More)
OBJECTIVES The impact of night-to-night variability (NNV) on polysomnography (PSG) has been reported mainly in normal subjects, the elderly and patients with obstructive sleep apnea with focus on changes in the apnea/hypopnea index, rather than measures of nocturnal oxygenation. There is very limited data on NNV in patients with cystic fibrosis (CF). The(More)
The objective of this study was to determine what impact the omission of respiratory events scored during wake epochs has on the generation of the apnea/hypopnea index (AHI) using computerised polysomnography (PSG). Sixty diagnostic PSG recordings were scored using the recommended method of sleep staging with epochs. In addition, absolute sleep scoring(More)
Study Objectives To validate the Sonomat against polysomnography (PSG) metrics in children and to objectively measure snoring and stertor to produce a quantitative indicator of partial upper airway obstruction that accurately reflects the pathology of pediatric sleep-disordered breathing (SDB). Methods Simultaneous PSG and Sonomat recordings were(More)
The purpose of this study was to use non-EEG PSG signals to estimate TST in order to diagnose SDB with a greater sensitivity than type 3 device methodology that relies on TRT. Movement patterns were obtained from the thoracoabdominal signals of adult PSG recordings (n = 60) in the laboratory and the home. Parameters obtained allowed, with 95% certainty,(More)
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