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Devices: Difference between revisions
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==Pacemakers== | ==Pacemakers== | ||
[[Image:Paced2.gif|300px|right|thumb|Ventricular paced rhythm shows ventricular pacemaker spikes.]] | [[Image:Paced2.gif|300px|right|thumb|Ventricular paced rhythm shows ventricular pacemaker spikes.]] | ||
[[Image: | [[Image:Pacemaker_device.svg|right|thumb|300px|Schematic display of a pacemaker.]] | ||
A pacemaker monitors the electrical impulses in the heart. When needed, it sends small electrical impulses to the heart muscle to maintain a normal heart rate. | A pacemaker monitors the electrical impulses in the heart. When needed, it sends small electrical impulses to the heart muscle to maintain a normal heart rate. | ||
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==Implantable cardioverter defibrillators (ICD)== | ==Implantable cardioverter defibrillators (ICD)== | ||
[[Image: | [[Image:ICD_device.svg|right|300px|thumb|Schematic display of an ICD]] | ||
An ICD is a device that monitors heart rhythms. If it senses dangerous rhythms, it delivers shocks or anti-tachypacing (ATP) therapy. Many ICDs record the heart's electrical patterns when there is an abnormal heartbeat. | An ICD is a device that monitors heart rhythms. If it senses dangerous rhythms, it delivers shocks or anti-tachypacing (ATP) therapy. Many ICDs record the heart's electrical patterns when there is an abnormal heartbeat. | ||
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==Cardiac resynchronisation therapy (CRT)== | ==Cardiac resynchronisation therapy (CRT)== | ||
[[Image: | [[Image:CRT_device.svg|right|thumb|200px|Schematic display of an CRT device]] | ||
[[Image:ChestXray.jpg|right|thumb|250px|Chest X-ray of a patient with an CRT device (in posteroanterior and lateral view)<br/>The red arrow is the right atrial lead<br/>The blue arrow is the right ventricular lead<br/>The green arrow is the coronary sinus lead]] | [[Image:ChestXray.jpg|right|thumb|250px|Chest X-ray of a patient with an CRT device (in posteroanterior and lateral view)<br/>The red arrow is the right atrial lead<br/>The blue arrow is the right ventricular lead<br/>The green arrow is the coronary sinus lead]] | ||