CanadiEM Podcasts: CRACKCast, ClerkCast, CarmsCast, First Year Diaries CRACKCast EP080 - Implantable Cardiac Devices
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May 25, 2017 Dive into the fascinating world of implantable cardiac devices, discussing their roles, complications, and indications for use. The complexities of pacemakers are explored, including malfunction types and specific challenges like lead disconnection. Learn about the critical five-letter nomenclature, the mysteries of pacemaker syndrome, and how magnets can affect these devices. Additionally, navigate the intricacies of managing Left Ventricular Assist Devices in emergency settings, ensuring you’re equipped for diverse cardiac scenarios.
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Permanent Pacing Indications
- Class 1 indications for permanent pacing include symptomatic bradycardia and AV blocks.
- Also consider asymptomatic persistent 3rd-degree AV block with ventricular rate over 40 bpm.
Pacemaker Nomenclature Mnemonic
- Remember the 5-letter pacemaker code: Chamber paced, Chamber sensed, Sensing response, Programmability, Anti-tachycardia functions.
- Use the mnemonic PSRPA (Paced, Sensed, Response, Programmability, Anti-tachyarrhythmia).
Pacemaker Malfunction Categories
- Pacemaker malfunctions fall into three main categories: failure to capture, inappropriate sensing, and inappropriate pacemaker rate.
- Rosen's further categorizes inappropriate sensing into over-sensing and under-sensing.