4,200
edits
Pacemaker: Difference between revisions
m
no edit summary
mNo edit summary |
mNo edit summary |
||
| Line 23: | Line 23: | ||
* Biventricular pacemakers ('''CRT-D'''): leads in both ventricles are present to synchronize contraction. This cardiac synchronization therapy can improve symptoms and survival in some heart failure patients. | * Biventricular pacemakers ('''CRT-D'''): leads in both ventricles are present to synchronize contraction. This cardiac synchronization therapy can improve symptoms and survival in some heart failure patients. | ||
* '''ICD''' (Internal Cardioversion Device): this device can detect and treat [[ventricular tachycardia]] and [[ventricular fibrillation]]. Usually the first treatment is anti-tachy pacing (pacing at a rate +- 10% above the ventricular rate in ventricular tachycardia, which can convert the rhythm to sinus rhythm). If this is not effective an defibrillator shock is delivered, usually with 16-36 Joules of energy. ICDs can save lives in patients who have a high risk of ventricular arrhythmias. All ICDs have optional pacemaker activity to treat bradycardias. New biventricular ICDs have 3 leads: an atrial lead, a left ventricular lead and a right ventricular lead. | * '''ICD''' (Internal Cardioversion Device): this device can detect and treat [[ventricular tachycardia]] and [[ventricular fibrillation]]. Usually the first treatment is anti-tachy pacing (pacing at a rate +- 10% above the ventricular rate in ventricular tachycardia, which can convert the rhythm to sinus rhythm). If this is not effective an defibrillator shock is delivered, usually with 16-36 Joules of energy. ICDs can save lives in patients who have a high risk of ventricular arrhythmias. All ICDs have optional pacemaker activity to treat bradycardias. New biventricular ICDs have 3 leads: an atrial lead, a left ventricular lead and a right ventricular lead. | ||
===Atrial-sensed ventricular-paced rhythm=== | |||
===AV dual-paced rhythm=== | |||
===Pacemaker Malfunction=== | |||
to be filled in ... | |||
====Failure of appropriate capture, atrial==== | |||
====Failure of appropriate capture, ventricular==== | |||
====Failure of appropriate inhibition, atrial==== | |||
====Failure of appropriate inhibition, ventricular==== | |||
====Failure of appropriate pacemaker firing==== | |||
====Retrograde atrial activation==== | |||
====Pacemaker mediated tachycardia==== | |||
==Externe Links== | ==Externe Links== | ||
| Line 28: | Line 40: | ||
{{clr}} | {{clr}} | ||