Pacemaker - Revision history

Prab at 18:11, 29 April 2025

2025-04-29T18:11:30Z

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 '''Pacemaker''' is a medical device that uses electrical impulses, delivered by electrodes contracting the heart muscles, to regulate the beating of the heart. The primary purpose of a pacemaker is to maintain an adequate heart rate, either because the heart's natural pacemaker is not fast enough, or there is a block in the heart's electrical conduction system. Modern pacemakers are externally programmable and allow a cardiologist, particularly a [[cardiac electrophysiologist]] to select the optimal pacing modes for individual patients.
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 As with any surgical procedure, there are risks associated with the implantation of a pacemaker. These risks can include infection at the surgical site, allergic reaction to the device material, and bleeding or bruising in the area where the pacemaker was placed.
 == See also ==
 * [[Cardiac resynchronization therapy]]
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 {{Medical devices}}
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2025-02-20T01:44:58Z

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			<gallery>
			File:St Jude Medical pacemaker with ruler.jpg\|Pacemaker
			File:AtrialPacemakerECG.JPG\|Pacemaker
			File:Duelchamber.JPG\|Pacemaker
			File:Pacemaker dependent asystole.jpg\|Pacemaker
			File:Fluoroscopy pacemaker leads right atrium ventricle.png\|Pacemaker
			File:Biotronik Philos SR Single-chamber cardiac pacemaker 29.01.21 JM.jpg\|Pacemaker
			File:Boston Scientific Altrua 50 Dual-chamber cardiac pacemaker 29.01.21 JM (2).jpg\|Pacemaker
			File:Cardiac resynchronisation therapy.png\|Pacemaker
			File:X-ray of pacemaker with right atrial and ventricular lead.jpg\|Pacemaker
			File:PaceMakerRemoteMonitoringDevicesTwoKinds.jpg\|Pacemaker
			File:UOTW 15 - Ultrasound of the Week 1.webm\|Pacemaker
			File:Arne Larsson.jpg\|Pacemaker
			</gallery>

Prab: CSV import

2024-02-25T15:43:11Z

CSV import

New page

'''Pacemaker''' is a medical device that uses electrical impulses, delivered by electrodes contracting the heart muscles, to regulate the beating of the heart. The primary purpose of a pacemaker is to maintain an adequate heart rate, either because the heart's natural pacemaker is not fast enough, or there is a block in the heart's electrical conduction system. Modern pacemakers are externally programmable and allow a cardiologist, particularly a [[cardiac electrophysiologist]] to select the optimal pacing modes for individual patients.

== History ==
The development of the artificial pacemaker has involved many innovations. The first wearable pacemaker was designed and built by the Canadian electrical engineer [[John Hopps]] in 1950 based on the external design of [[Paul Zoll]] which was used in 1952. It was almost 30 years later that the first implantable pacemaker was used.

== Types ==
Pacemakers are classified by the number of leads connected to the heart, the number of chambers paced, and the number of chambers sensed. A lead is an insulated wire that is connected to the heart muscle and delivers the electrical signals from the pacemaker. There are single chamber, dual chamber, and biventricular pacemakers.

== Function ==
The pacemaker works by sending small electrical impulses to the heart muscle to maintain a suitable heart rate and rhythm. A sensor, called a lead, is placed near the heart wall to monitor the heart's rhythm. The sensor sends a signal to the pacemaker generator, which sends an electrical impulse to the heart if it is beating too slowly or if it misses a beat.

== Risks ==
As with any surgical procedure, there are risks associated with the implantation of a pacemaker. These risks can include infection at the surgical site, allergic reaction to the device material, and bleeding or bruising in the area where the pacemaker was placed.

== See also ==
* [[Cardiac resynchronization therapy]]
* [[Defibrillator]]
* [[Cardiac electrophysiology]]

[[Category:Cardiology]]
[[Category:Medical devices]]
[[Category:Implants (medicine)]]

{{Cardiology}}
{{Medical devices}}
{{stub}}

← Older revision		Revision as of 01:44, 20 February 2025
Line 25:		Line 25:
	{{Medical devices}}		{{Medical devices}}
	{{stub}}		{{stub}}
			<gallery>
			File:St Jude Medical pacemaker with ruler.jpg\|Pacemaker
			File:AtrialPacemakerECG.JPG\|Pacemaker
			File:Duelchamber.JPG\|Pacemaker
			File:Pacemaker dependent asystole.jpg\|Pacemaker
			File:Fluoroscopy pacemaker leads right atrium ventricle.png\|Pacemaker
			File:Biotronik Philos SR Single-chamber cardiac pacemaker 29.01.21 JM.jpg\|Pacemaker
			File:Boston Scientific Altrua 50 Dual-chamber cardiac pacemaker 29.01.21 JM (2).jpg\|Pacemaker
			File:Cardiac resynchronisation therapy.png\|Pacemaker
			File:X-ray of pacemaker with right atrial and ventricular lead.jpg\|Pacemaker
			File:PaceMakerRemoteMonitoringDevicesTwoKinds.jpg\|Pacemaker
			File:UOTW 15 - Ultrasound of the Week 1.webm\|Pacemaker
			File:Arne Larsson.jpg\|Pacemaker
			</gallery>