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Related Concept Videos

Extraction: Advanced Methods00:56

Extraction: Advanced Methods

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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
425
Effects of EDTA on End-Point Detection Methods01:18

Effects of EDTA on End-Point Detection Methods

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Different methods, such as visual observance of metal-ion indicators, spectroscopic techniques, and potentiometric methods, can determine the endpoint of an EDTA titration.
In the visual method, metal-ion indicators (metallochromic dyes), which have distinct colors in their free and complex forms, are added to the mixture to signal the titration's end point. They form stable complexes with metal ions, but these complexes are weaker than the corresponding metal–EDTA complexes. As a...
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Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
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Masking and Demasking Agents01:19

Masking and Demasking Agents

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EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...
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Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients
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Indications for Lead Extraction.

Sean D Pokorney1

  • 1Division of Cardiology, Duke University Medical Center, Durham, NC 27710, USA; Department of Medicine, Duke Clinical Research Institute, Durham, NC 27710, USA.

Cardiac Electrophysiology Clinics
|October 26, 2024
PubMed
Summary
This summary is machine-generated.

Cardiac implantable electronic devices (CIEDs) require increased lead management. Prompt CIED extraction for infections is crucial but underutilized, leading to higher mortality; care pathways are needed.

Keywords:
CIED infectionsCardiac implantable electronic devices (CIEDs)Heart failure patientsLead extraction

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Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Infectious Diseases

Background:

  • Cardiac implantable electronic devices (CIEDs) are increasingly implanted, necessitating advanced lead management strategies.
  • Rising survival rates in heart failure patients contribute to a growing need for CIED management.
  • CIED infections represent a primary indication for device extraction.

Purpose of the Study:

  • To highlight the underutilization and delays in CIED lead extraction for infections.
  • To emphasize the impact of delayed extraction on patient mortality.
  • To advocate for the development of structured care pathways for CIED lead extraction.

Main Methods:

  • Review of clinical practice guidelines and literature regarding CIED lead extraction.
  • Analysis of indications for CIED extraction, focusing on infectious etiologies.
  • Discussion of factors influencing extraction decision-making, including patient and provider preferences.

Main Results:

  • Complete hardware removal during CIED extraction is often underutilized.
  • Delayed extraction in CIED infection cases is associated with increased mortality.
  • Patient and provider preferences significantly impact decisions regarding extraction.

Conclusions:

  • Optimizing CIED care requires improved utilization and timely referral for lead extraction, especially in cases of infection.
  • Development of standardized referral and management care pathways is essential.
  • Addressing patient and provider preferences is critical for effective decision-making in CIED management.