Reperfusion injury
Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
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| Reperfusion injury | |
|---|---|
| |
| Synonyms | Ischemia-reperfusion injury |
| Pronounce | N/A |
| Specialty | N/A |
| Symptoms | Tissue damage, inflammation, oxidative stress |
| Complications | Myocardial infarction, stroke, organ failure |
| Onset | During or after reperfusion |
| Duration | Variable, depending on severity and treatment |
| Types | N/A |
| Causes | Restoration of blood flow after ischemia |
| Risks | Coronary artery disease, stroke, organ transplantation |
| Diagnosis | Clinical evaluation, imaging studies, biomarkers |
| Differential diagnosis | Myocardial infarction, stroke, acute kidney injury |
| Prevention | Ischemic preconditioning, pharmacological agents |
| Treatment | Antioxidants, anti-inflammatory drugs, controlled reperfusion |
| Medication | N/A |
| Prognosis | Depends on extent of injury and treatment |
| Frequency | Common in cardiac surgery, organ transplantation |
| Deaths | N/A |
Reperfusion Injury refers to the paradoxical tissue damage caused when blood supply returns to tissue (reperfusion) after a period of ischemia (lack of oxygen). This condition is characterized by functional, metabolic, or structural changes in the ischemic tissues.
Pathophysiology[edit | edit source]
Reperfusion injury involves complex biological reactions including:
- Cellular swelling and inflammation
- Hemorrhage
- Necrosis (tissue death)
- Oxidative stress from free radicals, which can further damage cells
Common Instances[edit | edit source]
The most prevalent instance of reperfusion injury is:
- Myocardial reperfusion injury: Occurs when blood flow is restored to the heart after a heart attack.
Complications[edit | edit source]
Complications of reperfusion injury can significantly impact recovery and overall outcomes, particularly in acute myocardial infarction and stroke.
Treatment and Management[edit | edit source]
Treatment focuses on minimizing tissue damage and may include:
- Controlled reperfusion strategies
- Use of antioxidants and other drugs to mitigate oxidative stress
- Surgical interventions in severe cases
External Links[edit | edit source]
- American Heart Association - Myocardial Reperfusion Injury
- National Center for Biotechnology Information - Reperfusion Injury
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Contributors: Kondreddy Naveen, Prab R. Tumpati, MD
