Pacemaker: Difference between revisions
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==Pacemaker Coding== | ==Pacemaker Coding== | ||
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. | ||
* The first letter represents the chamber where the signal is | * The first letter represents the chamber where the signal is paced: A=atria, V=ventricle, D=dual (atria and / or ventricle) | ||
* The second letter represents the chamber that is | * The second letter represents the chamber that is "sensed": O=none, A=atria, V=ventricle, D=dual (atrial and / or ventricle) | ||
* The third letter represents the action that follows the sensed signal: O = none, T = triggered, I = inhibited (i.e. if the heart beats by itself, the pacemaker is silent) and D = dual (T + I). | * The third letter represents the action that follows the sensed signal: O = none, T = triggered, I = inhibited (i.e. if the heart beats by itself, the pacemaker is silent) and D = dual (T + I). | ||
* The fourth letter denotes whether the pacemaker has a fixed rate (0 = none) or has rate modulation (R). | * The fourth letter denotes whether the pacemaker has a fixed rate (0 = none) or has rate modulation (R). | ||