Keun Tae Kim1, Yong Won Cho2, Dong Eun Kim3, Sang Hee Hwang4, Mei Ling Song5, Gholam K Motamedi6. 1. Department of Neurology, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, South Korea. 2. Department of Neurology, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, South Korea. Electronic address: neurocho@gmail.com. 3. Department of Otorhinolaryngology, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, South Korea. 4. Department of Dentistry, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, South Korea. 5. Department of Graduate School of Nursing, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, South Korea. 6. Department of Neurology, Georgetown University Hospital, Washington, DC, USA.
Abstract
OBJECTIVES: The body position has a strong influence on obstructive sleep apnea (OSA). The purpose of this study is to compare the clinical features of two subtypes of positional OSA (POSA), namely supine-predominant OSA (spOSA) and supine-isolated OSA (siOSA), so as to discuss whether the two groups can be classified separately. METHODS: A total of 279 consecutive patients with OSA were enrolled. The POSA was defined as having an overall apnea-hypopnea index (AHI) ⩾ 5 with supine AHI > 2 times the non-supine AHI. Only those with ⩾ 30 min spent in the supine and non-supine sleeping positions were included, and split night studies were excluded from the study. Patients were considered spOSA unless their non-supine AHI was negligible (<5) (siOSA). The clinical and polysomnographic characteristics of both groups were compared. RESULTS: Two hundred and sixteen subjects (77.4%) met the criteria for POSA, with 158 (73.1%) of them classified as spOSA, and 58 (26.9%) as siOSA. The siOSA patients had lower arousal indices, but poorer quality of sleep, and were more depressed and anxious compared with the spOSA subjects. CONCLUSIONS: Those with siOSA and spOSA show different clinical features. SIGNIFICANCE: These findings suggest that a more detailed sub-classification of POSA is needed.
OBJECTIVES: The body position has a strong influence on obstructive sleep apnea (OSA). The purpose of this study is to compare the clinical features of two subtypes of positional OSA (POSA), namely supine-predominant OSA (spOSA) and supine-isolated OSA (siOSA), so as to discuss whether the two groups can be classified separately. METHODS: A total of 279 consecutive patients with OSA were enrolled. The POSA was defined as having an overall apnea-hypopnea index (AHI) ⩾ 5 with supine AHI > 2 times the non-supine AHI. Only those with ⩾ 30 min spent in the supine and non-supine sleeping positions were included, and split night studies were excluded from the study. Patients were considered spOSA unless their non-supine AHI was negligible (<5) (siOSA). The clinical and polysomnographic characteristics of both groups were compared. RESULTS: Two hundred and sixteen subjects (77.4%) met the criteria for POSA, with 158 (73.1%) of them classified as spOSA, and 58 (26.9%) as siOSA. The siOSA patients had lower arousal indices, but poorer quality of sleep, and were more depressed and anxious compared with the spOSA subjects. CONCLUSIONS: Those with siOSA and spOSA show different clinical features. SIGNIFICANCE: These findings suggest that a more detailed sub-classification of POSA is needed.
Authors: Giannicola Iannella; Giuseppe Magliulo; Cristina Anna Maria Lo Iacono; Giulia Bianchi; Antonella Polimeni; Antonio Greco; Andrea De Vito; Giuseppe Meccariello; Giovanni Cammaroto; Riccardo Gobbi; Marco Brunori; Milena Di Luca; Filippo Montevecchi; Annalisa Pace; Irene Claudia Visconti; Claudia Milella; Carmen Solito; Stefano Pelucchi; Luca Cerritelli; Claudio Vicini Journal: Int J Environ Res Public Health Date: 2020-02-10 Impact factor: 3.390
Authors: Luca Cerritelli; Luigi Marco Stringa; Giulia Bianchi; Henry Zhang; Giovanni Cammaroto; Claudio Vicini; Stefano Pelucchi; Andrea Marco Minetti Journal: Acta Otorhinolaryngol Ital Date: 2021-12 Impact factor: 2.124