2, this kind of patients generally have certain characteristics, that is, they are prone to snoring while sleeping, sweating has certain regularity, and their voices are high and low, and then there is a certain rhythm, which may suddenly lead to breathlessness and apnea.
In addition, there are some diseases, such as heart disease, valvular heart disease, primary cardiomyopathy and hypertensive heart disease. When lying flat at night, rest will lead to an increase in blood volume. Heart failure itself may suddenly attack acute left heart failure at night, so there will be sudden asphyxia, paroxysmal dyspnea and sitting breathing.