Hyperventilation syndrome

Hyperventilation syndrome (hyperventilation syndrome) is a group of symptoms caused by excessive ventilation over physiological metabolic needs. Intrinsic refers to the absence of any cause of organic lesions, and accelerated breathing movements during the onset, resulting in a reduction in arterial blood carbon dioxide partial pressure (less than 5kPa), respiratory alkalosis, and sympathetic nervous system excitement. Shows various symptoms. All symptoms can be explained by hyperventilation and respiratory alkalosis. The symptoms are related to abnormalities in the respiratory control system and loss of stability of spontaneous respiratory regulation (mostly high neural structures above the brainstem, such as the thalamus). The concept of hyperventilation syndrome includes the following three meanings: ① there are physical symptoms; ② there is a respiratory regulation abnormality that can cause hyperventilation; ③ there is a causal link between physical symptoms and respiratory regulation abnormalities, which means that the physical symptoms are regulated by breathing Caused by the exception.