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Understanding the working function of different types of controllers can be illustrated with practical analogies, such as adjusting a stereo's volume equalizer. Cranking up the bass involves a phase-lead controller, which functions as a high-pass filter, while increasing the treble uses a phase-lag controller, which acts as a low-pass filter. PD controllers, similar to high-pass filters, enhance the system's response to high-frequency components. PI controllers, akin to low-pass...
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Lead Removal Without Extraction Tools: A Single-Center Experience.

Neiberg de Alcantara Lima1,2, Gisele Schinaider Cunha3, Natalia Soares de Menezes2

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Simple manual traction is an effective method for cardiac device lead extraction, achieving high success rates without complications. This technique is a viable first-line approach, especially in resource-limited settings, before considering more complex tools.

Keywords:
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Area of Science:

  • Cardiology
  • Medical Devices
  • Surgical Procedures

Background:

  • Cardiac device implantation is increasing, leading to a greater need for lead extraction due to infections, lead failure, and device recalls.
  • Advanced technological tools like powered laser sheaths exist for lead extraction but present significant economic challenges.

Purpose of the Study:

  • To evaluate the efficacy of simple manual traction for transvenous lead extraction.
  • To question the necessity of expensive, technologically advanced devices in lead extraction procedures.

Main Methods:

  • Retrospective observational study of 35 patients undergoing transvenous lead extraction.
  • Data collected via records review, analyzing patient demographics, device information, dwelling time, extraction indications, and outcomes.
  • Simple manual traction was the primary extraction technique assessed.

Main Results:

  • The median dwelling time for cardiac devices was 46.22 months.
  • Common indications for lead extraction included infection, lead fracture, and device malfunction.
  • Simple manual traction was used in 88.9% of cases, achieving a 90% success rate with complete removal and no immediate complications.

Conclusions:

  • Simple manual traction is an effective and successful method for transvenous lead extraction.
  • This technique is a cost-effective first-line approach, particularly in economically challenged regions.
  • Auxiliary tools should be reserved for cases where simple manual traction fails or is contraindicated.