PERIARREST DYSRHYTHMIAS
Tarek Awad Marei;
Abstract
Many victims of cardiac arrest suffer the event in the context of a clinical illness complicated by malignant rhytlnn disorders. Peri-arrest arrhythmias encompass all rhythm disorders that are of their nature potentially malignant or that may become life threatening in some clinical contexts-notably in the aftermath of cardiac arrest.
On a very fundamental level, the heart is an electrical organ. The electrical signal generated by the heart not only cause muscle contraction but also organize the sequence of muscle contraction with each heartbeat, thus optimizing the pumping action of the heart. In addition, the pattern and timing of cardiac electrical signals determine the heart rhytlnn. Thus, a well-functioning electrical system is .vital for adequate cardiac performance
Successful arrhythmia management requires some familiarity with cellular mechanisms for cardiac arrhythmia. The reason for this is that most specific management, be it antiarrhytlnnic drugs or electrical therapy (e.g. pacemaker), is designed to affect one or another of these mechanisms. Cardiac arrhytlnnias are considered disorders of: automaticity, conduction, or both.
All cardiac arrhythmia are mediated by localized or generalized changes in the cardiac action potential. Antiarrhytlnnics work through changing the shape of the action potential; they do this by altering the channels that control the flow of ions across the cardiac cell membrane.
On a very fundamental level, the heart is an electrical organ. The electrical signal generated by the heart not only cause muscle contraction but also organize the sequence of muscle contraction with each heartbeat, thus optimizing the pumping action of the heart. In addition, the pattern and timing of cardiac electrical signals determine the heart rhytlnn. Thus, a well-functioning electrical system is .vital for adequate cardiac performance
Successful arrhythmia management requires some familiarity with cellular mechanisms for cardiac arrhythmia. The reason for this is that most specific management, be it antiarrhytlnnic drugs or electrical therapy (e.g. pacemaker), is designed to affect one or another of these mechanisms. Cardiac arrhytlnnias are considered disorders of: automaticity, conduction, or both.
All cardiac arrhythmia are mediated by localized or generalized changes in the cardiac action potential. Antiarrhytlnnics work through changing the shape of the action potential; they do this by altering the channels that control the flow of ions across the cardiac cell membrane.
Other data
| Title | PERIARREST DYSRHYTHMIAS | Other Titles | اختلال ضربات القلب المحيط يتوقف القلب | Authors | Tarek Awad Marei | Issue Date | 2000 |
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