What is the difference between ischemia and anoxia

Also Visit CVpharmacology. Click here for information on Cardiovascular Physiology Concepts, 3rd edition, a textbook published by Wolters Kluwer Klabunde Ischemia is insufficient blood flow to provide adequate oxygenation.

This is a condition in which blockage arises in the cells or tissues and seizes the supply of blood towards cells and tissues.

A blood clot gets formed in the blood vessels, due to which blood flow can be done easily. Hypoxia is the low level of oxygen in the body. This can be caused by several medical conditions. There is a condition known as dyspnea which is caused by difficulty in breathing. It is tested medical instruments. If a patient has cardiopulmonary disease can even lead to hypoxia.

It can even lead to heart failure. The mountain climbers who cannot face severe high altitude sickness can also lead to hypoxia. At high altitudes, the oxygen level is very low, due to which there can be breathing problems. It can cause a person hypoxia. Hypoxia can be caused by environmental changes. Even smoke inhalation can lead to hypoxia. Carbon monoxide is also a reason which causes Hypoxia.

There are conditions in which Hypoxia can lead to other serious diseases like Hypercapnia. These conditions happen due to difficulty in breathing. Generalized hypoxia can occur in healthy people at a high altitude where oxygen concentration of the air is low. It causes altitude sickness causing potentially fatal outcomes such as high altitude pulmonary edema HAPE and high altitude cerebral edema HACE due to hypoxic damage.

Hypoxia can also be occurred in healthy people when breathing mixtures of gasses with a low oxygen concentration, e. Diving deep underwater Deep sea divers. Sometimes mild and non-damaging intermittent hypoxia is used intentionally for altitude training to improve athletic performance by adaptation of both the systemic and cellular bio environments.

Hypoxia can be a serious complication of preterm birth in the neonate due to immature lungs. Lungs of the human fetus mature toward the latter part of the pregnancy. To minimize this complication, infant at risk of hypoxia are often placed inside an incubator which is capable of maintaining continuous positive airway pressure to prevent lung collapse. Ischemia is caused by problems with the circulatory system causing damage or dysfunction of oxygen sensitive tissues.

Most tissues cannot survive more than few minutes without a continuous oxygen supply. Lack of oxygen leads to a process known as Ischemic cascade. The damage is caused by the accumulation of metabolic waste products, damage to cell membranes, mitochondrial powerhouse of the cell dysfunction.