Cardiac Respiratory Arrest (PART 3)

ONLY four factors have been shown to be a mayor benefit in successful resuscitation from cardiac arrest:(1) Time,arificial ventilation and cardiac massage,defibrillation and adrenaline (Atkins 1986). The critical parameter  for restoring spontaneous circulation is development of adequate coronary perfusion pressure(CPP).(7) In human,return of circulation requires that developed CPP exceeds 15-20 mmHg.(7) Adrenaline with its alpha adrenergic properties ,make  peripheral vasoconstriction leads to an increase in aortic pressure during relaxation phase of closed chest compression,causing an increase in coronary perfusion pressure and coronary blood fllow(Michael...

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Cardiac Respiratory Arrest (PART 2)

THERAPY A.The initial goal of therapy is oxygenation of the brain. The second goal is restoration of circulation. In addition the underlying conditions must be corrected(2). 1. CPR is not indicated for all patients,natural death in the aged or the terminal stages of chronic illness should not be reversed in this manner. 2. CPR should be performed in cases of reversible unexpected death.        That occur as a result of myocardial infarction, general and local anesthetic drugs,electric shock,cardiac catheterization or suffocation. OLD GUIDELINES : B. Emergency CPR includes the following ABCD steps which should always be started...

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Cardiac Respiratory Arrest (PART 1)

INTRODUCTION : Cardiopulmonary arrest is the sudden,unexpected cessation of respiration and functional circulation.(2) It is frequently difficult to determine wether respiratory arrest precedes or follows circulatory arrest in any particular patients wether the initial event,however,is the cessation of circulation or respiration,tissue hypoxia occurs rapidly.(4) Haldane remarked not only does the body machine breakdown,but the machinery is wrecked.(4) In case circulatory arrest,the pupil dilate in 45 sec and respiratory stop within one minute due to medullry depression.(4) In the adult the brain may be damaged within 4-6 minutes (2). If respiratory arrest occurs...

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