![]() ![]() The long-term efficiency and the compliance of prone positioning were not assessed. The mean AHI and ODI were significantly improved in the prone position, with higher efficiency observed in patients with POSA. In a previous study from our research group, the effect of prone positioning of the body and the head was evaluated in patients with OSA. There is limited experience regarding the effect of the prone position on severity of OSA. Due to the limited compliance with all the variations of the tennis ball technique, several newer positional methods have been developed primarily to reduce the time spent in the supine position. This treatment has been shown to reduce the supine time and to improve AHI in patients with POSA. A tennis ball is sewn into the pyjamas or fastened by a belt to the back of the patient to reduce the time spent in the supine position. ![]() One of the first described therapies to reduce snoring and to improve OSA was the so-called ‘tennis ball technique’. Previous positional therapies for patients with OSA have focused primarily on avoiding the supine position and/or sleeping in the lateral position. Many patients with OSA have contraindications for using oral devices. Many patients with OSA cannot tolerate continuous positive airway pressure (CPAP) or they use it incidentally. In approximately 80% of all patients with OSA the AHI is higher in the supine position compared with the non-supine positions. More than 50% of patients with OSA are considered to have positional OSA (POSA), a condition in which the apnoea-hypopnoea index (AHI) is at least twice as high in the supine position compared with non-supine positions. The number and duration of respiratory disturbances during sleep are influenced by the body position in most patients with obstructive sleep apnoea (OSA). Results: Mean AHI and ODI decreased from 26 and 21 to 8 and 7, respectively ( p 4 h per night during the 4-week study. The first PSG study was without any treatment and the second was after 4 weeks of adaptation to the MPP for prone positioning of the body and the head. Two polysomnographic (PSG) studies were performed. Methods: Fourteen patients with mild to severe OSA, 11 men and 3 women with a mean AHI of 26 (min, 6 max, 53) and mean ODI of 21 (min, 6 max, 51) were evaluated. Objective: The aim of the present study was to evaluate the effect of the prone body and head sleep position on severity of disease in patients with OSA after 4 weeks of adaptation to a mattress and pillow facilitating prone positioning.
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