What is the sitting position

Terminal sitting position: refers to the patient in order to reduce dyspnea is forced to take the sitting position or semi-recumbent state. This is a more serious manifestation of heart failure, the emergence of sitting breathing suggests that heart failure has obvious pulmonary stasis.

The mechanism is: ① sitting, blood due to gravity, part of the transfer to the lower body, so that the return of blood to reduce the amount of blood to reduce pulmonary stasis; ② sitting, the position of the diaphragm is relatively shifted downward, the thoracic cavity volume is relatively large, the lung volume increases, reduce dyspnea, especially with ascites and hepatosplenomegaly, sitting position so that the chest cavity can be squeezed to relax, reducing dyspnea; ③ sitting respiratory Reduce the lower body edema fluid absorption into the blood, reduce pulmonary stasis.　Sitting breathing is one of the forced positions, also called forced sitting position. Patients with cardiac insufficiency, take the sitting breathing, can make the lower limbs to increase the storage of blood, reduce the amount of return blood, reduce the burden on the heart, reduce the symptoms of cardiac insufficiency.　The patient sits on the edge of the bed, with two hands on the knees or support the edge of the bed, this position can make the thoracic auxiliary respiratory muscles easy to move; at the same time, under the role of the position to make the diaphragm down, so that the lungs increase the volume of air exchange, reduce the symptoms of pulmonary insufficiency, reduce the patient's pain, such as bronchial asthma, severe patients, due to insufficient air exchange, the patient is seated respiration, two hands in front of the support, two shoulders, cold sweat on the forehead, the expression of pain, may have cyanosis. The patient can have cyanosis.