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Key Points 1. Active fixation leads can penetrate through structures (e.g., the thin-walled right atrium) during placement and present as pain, pneumomediastinum, or effusions. 2. Active rate modulation in cardiac implantable electrical devices (CIEDs) may result in heart rate changes…
Key Points 1. Cardiac arrhythmias are common and result from an ectopic focus or a reentry circuit. 2. Surgical and catheter-based ablative therapies can abolish the origins of arrhythmias by interposition of scar tissue along the reentrant pathway or by…