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Trepopnea /tɹɛpəʊpˈniːə/ is dyspnea (shortness of breath) that is sensed while lying on one side but not on the other [1] (lateral recumbent position). It results from disease of one lung, one major bronchus, or chronic congestive heart failure that affects only a side of breathing.
Shortness of breath (SOB), known as dyspnea (in AmE) or dyspnoea (in BrE), is an uncomfortable feeling of not being able to breathe well enough. The American Thoracic Society defines it as "a subjective experience of breathing discomfort that consists of qualitatively distinct sensations that vary in intensity", and recommends evaluating dyspnea by assessing the intensity of its distinct ...
Shortness of breath can manifest as orthopnea (inability to breathe sufficiently when lying down flat) and/or paroxysmal nocturnal dyspnea (episodes of severe sudden breathlessness at night). These are common presenting symptoms of chronic and cardiogenic pulmonary edema due to left ventricular failure.
If heart failure, loss of consciousness, or heart related chest pain occur due to AS the outcomes are worse. [1] Loss of consciousness typically occurs with standing or exercising. [1] Signs of heart failure include shortness of breath especially when lying down, at night, or with exercise, and swelling of the legs. [1]
The perception of dyspnea is theorized to be a complicated connection between peripheral receptors, neural pathways, and the central nervous system. [5] Receptors in the chest wall and central airways, as well receptors in the respiratory center of the central nervous system, produce an increased requirement for ventilation which is not matched ...
A related condition, orthodeoxia, describes the clinical finding of low oxygen saturation in the upright position, which improves when lying down. [3] Platypnea and orthodeoxia (low oxygen levels when in upright posture) can co-exist, and this combination is named platypnea-orthodeoxia syndrome. [4] [5] The syndrome is considered extremely rare ...
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The hallmark signs of heart failure include shortness of breath (especially on exertion, at night, or while lying down) and leg swelling. Chest pain is rarely a feature of heart failure, which would point a diagnosis more toward angina pectoris or myocardial infarction.