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[Myocardial protective effect using membrane stabilization in ischemic heart arrest in hypothermia]
Chirurgisches Forum Fur Experimentelle Und Klinische Forschung
|January 1, 1978
Summary
Steroid pretreatment and procaine protect heart function after ischemic arrest but do not prevent swelling. Procaine offers faster heart protection, with no added benefit from combining both treatments.
Area of Science:
- Cardiology
- Cardiovascular Surgery
- Biochemistry
Background:
- Myocardial stunning and edema are common complications following ischemic cardiac arrest.
- Membrane stabilization strategies are explored to mitigate ischemic injury.
- Steroids and procaine are investigated for their potential cardioprotective effects.
Purpose of the Study:
- To evaluate the efficacy of steroid pretreatment and procaine in preventing myocardial stunning and edema after ischemic arrest.
- To determine if combining steroids and procaine offers additional cardioprotective benefits.
- To assess the technical advantages of procaine for cardioplegia.
Main Methods:
- Animal model of topical hypothermic ischemic arrest.
- Administration of steroid pretreatment, procaine, or both prior to ischemia.
- Assessment of left ventricular performance post-ischemia.
- Measurement of myocardial edema.
Main Results:
- Both steroid pretreatment and procaine individually protected against postischemic left ventricular dysfunction.
- Neither treatment prevented the development of myocardial edema.
- Combination therapy with steroids and procaine showed no added benefit over monotherapy.
- Procaine demonstrated rapid onset of cardioplegia.
Conclusions:
- Membrane stabilization with steroids or procaine can preserve left ventricular function after ischemic arrest.
- Procaine offers a practical advantage due to its rapid cardioplegic effect.
- Further research may be needed to address myocardial edema prevention.