ISCHEMIC PRECONDITIONING Meaning and
Definition
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Ischemic preconditioning refers to a protective mechanism that can mitigate the damage caused by lack of oxygen (ischemia) to a tissue or organ. It involves subjecting the affected area to brief, controlled periods of reduced blood flow or total lack of blood flow, known as ischemic episodes, followed by periods of reperfusion or restoration of blood flow. This technique has been observed to confer a certain level of resistance on the tissue to subsequent, prolonged ischemic episodes.
Ischemic preconditioning triggers a series of biochemical and physiological responses within the tissue that enable it to better withstand the deprivation of oxygen during subsequent ischemia. The exact mechanisms by which this occurs are not fully understood but are believed to involve the activation of various protective genes and proteins. These include the release of factors that contribute to the opening of blood vessels, improved metabolism, reduction of harmful inflammation, and protection against cell death.
Ischemic preconditioning has been demonstrated to have significant clinical implications, particularly in fields like cardiology and surgery. By briefly depriving a heart or other vital organ of blood flow prior to a procedure or event that may lead to prolonged ischemia, such as cardiac surgery or angioplasty, the tissue can be made more resistant to damage. This can potentially reduce the severity of heart attacks, strokes, or other ischemic events and improve patient outcomes.
In addition to clinical applications, the study of ischemic preconditioning has contributed to a greater understanding of the protective mechanisms at play during ischemia and has led to the development of novel therapies and interventions for ischemic injuries.
Common Misspellings for ISCHEMIC PRECONDITIONING
- uschemic preconditioning
- jschemic preconditioning
- kschemic preconditioning
- oschemic preconditioning
- 9schemic preconditioning
- 8schemic preconditioning
- iachemic preconditioning
- izchemic preconditioning
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- isxhemic preconditioning
- isvhemic preconditioning
- isfhemic preconditioning
- isdhemic preconditioning
- iscgemic preconditioning
- iscbemic preconditioning
- iscnemic preconditioning
- iscjemic preconditioning
Etymology of ISCHEMIC PRECONDITIONING
The word "ischemic preconditioning" is formed by combining two terms: "ischemic" and "preconditioning".
1. Ischemic: The term "ischemic" refers to a restriction or reduction in blood supply to a particular organ or tissue. It stems from the Greek word "ischēmia", which translates to "a stopping of blood" (from "ischēin" meaning "to hold back" and "haima" meaning "blood").
2. Preconditioning: The term "preconditioning" refers to an action or procedure that prepares or conditions something for a future event. In the medical context, it typically refers to a technique used to protect organs or tissues against subsequent episodes of ischemia by subjecting them to short periods of ischemia and reperfusion.
