pulseless electrical activity

pulseless electrical activity
(PEA) continued electrical rhythmicity of the heart in the absence of effective mechanical function; it may be due to uncoupling of ventricular muscle contraction from electrical activity or may be secondary to cardiac damage with respiratory failure and cessation of cardiac venous return. Called also electromechanical dissociation.

Medical dictionary. 2011.

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  • pulseless electrical activity — the appearance of normal looking complexes on the electrocardiogram that are, however, associated with a state of cardiac arrest. It is usually caused by large pulmonary emboli (see pulmonary embolism), cardiac tamponade, tension pneumothorax,… …   Medical dictionary

  • pulseless electrical activity — electromechanical dissociation the appearance of normal looking complexes on the electrocardiogram that are, however, associated with a state of cardiac arrest. It is usually caused by large pulmonary emboli (see pulmonary embolism), cardiac… …   The new mediacal dictionary

  • activity — 1. In electroencephalography, the presence of neurogenic electrical energy. 2. In physical chemistry, an ideal concentration for which the law of mass action will apply perfectly; the ratio of the a. to the true concentr …   Medical dictionary

  • electromechanical dissociation — pulseless electrical activity …   The new mediacal dictionary

  • PEA — Pulseless Electrical Activity (Medical) Preliminary Endangerment Assessment (Governmental » Military) * Preliminary Environmental Assessment (Governmental » US Government) * Push Effective Address (Computing » Assembly) * Phenylethyl Alcohol Agar …   Abbreviations dictionary

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  • PEA — Abbreviation for pulseless electrical activity. * * * patient controlled epidural anesthesia; pelvic examination under anesthesia; phenylethyl alcohol; phenylethylamine; polysaccharide egg antigen; pulseless electrical activity * * * pulseless… …   Medical dictionary

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