<unk>  or<unk>  is shortness of breath (dyspnea) that is relieved when lying down, and worsens when sitting or standing. It is the opposite of orthopnea. The condition was first described in 1949 and named in 1969. A related condition, orthodeoxia, describes the clinical finding of low oxygen saturation in the upright position, which improves when lying down.<unk>  and orthodeoxia can co-exist, and this combination is named<unk> -orthodeoxia syndrome. The syndrome is considered extremely rare.
Platypnea
Periodic breathing
Tachypnea
Trepopnea
Apnea
Bradypnea
Shallow breathing
Bendopnea