venous collapse
Introduction
Introduction The vein is the blood vessel in the circulatory system that causes blood to flow back to the heart. Most veins (systemic veins) carry lower blood oxygen and higher carbon dioxide levels. They bring blood back from the body to the heart, the veins of the pulmonary circulation and The blood in the umbilical vein has the highest oxygen concentration and the lowest carbon dioxide. Venous collapse is a symptom in which the abnormal shrinkage of the vein becomes distorted and dents. Blood volume reduction, shock, dehydration, high heat sweating, foam hardener, etc. can cause venous collapse.
Cause
Cause
Blood volume reduction, shock, dehydration, high heat sweating, foam hardener, etc. can cause venous collapse.
Examine
an examination
Related inspection
Venous auscultation center venous pressure measurement (CVP)
In patients with insufficient capacity, due to the reduction of circulating blood volume, peripheral blood vessels collapse, flattened, and poorly elastic, showing a strip-like shape, and the superficial vein disappears, which brings certain difficulty to venipuncture.
The sclerosing agent causes an inflammatory reaction in the venous wall, and the vein is collapsed by continuous pressure. The granulation tissue and subsequent fibrosis grow in the collapsed venous cavity, and finally the fiber cord is formed to permanently occlude the venous cavity.
Common signs of isotonic dehydration have poor skin elasticity, dry skin mucosa, rapid and weak pulse, superficial vein collapse, cold limbs, and decreased urine output.
Diagnosis
Differential diagnosis
Differential diagnosis of venous collapse:
Varicose veins: a symptom in which abnormal expansion of the vein becomes distorted and swollen, and about half of the population over forty years old has a ricket rate. Especially women, about 2/3 of them have different degrees of varicose veins. This type of deformed and sometimes painful disease usually occurs in the legs, due to the pressure on your leg veins due to your upright posture. Varicose veins usually do not have serious consequences, but may have the pore veins under the dual influence of gravity and valve failure, so that the blood supply to the tissue is greatly reduced, resulting in malnutrition and skin ulcers.
In patients with insufficient capacity, due to the reduction of circulating blood volume, peripheral blood vessels collapse, flattened, and poorly elastic, showing a strip-like shape, and the superficial vein disappears, which brings certain difficulty to venipuncture.
The sclerosing agent causes an inflammatory reaction in the venous wall, and the vein is collapsed by continuous pressure. The granulation tissue and subsequent fibrosis grow in the collapsed venous cavity, and finally the fiber cord is formed to permanently occlude the venous cavity.
Common signs of isotonic dehydration have poor skin elasticity, dry skin mucosa, rapid and weak pulse, superficial vein collapse, cold limbs, and decreased urine output.
