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Devices: Difference between revisions
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[[Image:RedTh.jpg|300px|right|thumb|Determination of stimulation threshold, after the red arrow the stimulus intensify and duration is not sufficient anymore to capture the heart.]] | [[Image:RedTh.jpg|300px|right|thumb|Determination of stimulation threshold, after the red arrow the stimulus intensify and duration is not sufficient anymore to capture the heart.]] | ||
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!Ohm’s law: | !Ohm’s law: | ||
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|U = I x R | |||
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Pacemakers can be categorized according to the NASPE coding system that usually consists of 3-5 letters. | Pacemakers can be categorized according to the NASPE coding system that usually consists of 3-5 letters. | ||
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!I | !I | ||
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The ICD diagnoses rhythm disorders by counting intervals on the intracardiac electrogram. This is a rate-based detection scheme that can be adjusted to meet the individual patient’s needs by programming. The ICD counts the current interval as one value and then average of the current interval and the preceding intervals. If these intervals fall into the same category, the event is binned in that category. If both events are tachycardia of fibrillation, but not in the same category, the interval is binned in the higher category. | The ICD diagnoses rhythm disorders by counting intervals on the intracardiac electrogram. This is a rate-based detection scheme that can be adjusted to meet the individual patient’s needs by programming. The ICD counts the current interval as one value and then average of the current interval and the preceding intervals. If these intervals fall into the same category, the event is binned in that category. If both events are tachycardia of fibrillation, but not in the same category, the interval is binned in the higher category. | ||
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!SVT discriminators: | !SVT discriminators: | ||