Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Extraction: Advanced Methods00:56

Extraction: Advanced Methods

448
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...
448
Electrocardiogram Fundamentals01:28

Electrocardiogram Fundamentals

602
Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
602

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Development and Validation of the LIFE-5S Score for Predicting 5-Year Mortality After Transvenous Lead Extraction.

Journal of cardiovascular electrophysiology·2026
Same author

CHA<sub>2</sub>DS<sub>2</sub>-VASc and CHA<sub>2</sub>DS<sub>2</sub>-VA Scores as Predictors of Short- and Long-Term Mortality Following Transvenous Lead Extraction.

Vascular health and risk management·2026
Same author

Clinically Actionable Explainable AI in Pulmonary Arterial Hypertension: Endpoints, Calibration, and External Validation. Reply to Pagnoni et al. Toward Clinically Actionable Explainable AI in Pulmonary Arterial Hypertension: Endpoints, Calibration, and External Validation. Comment on "Ledziński et al. Personalized Medicine in Pulmonary Arterial Hypertension: Utilizing Artificial Intelligence for Death Prevention. <i>J. Clin. Med.</i> 2025, <i>14</i>, 8325".

Journal of clinical medicine·2026
Same author

Difficulty and Complications of Lead Extraction-Is ICD Lead Design Important?

Pacing and clinical electrophysiology : PACE·2026
Same author

Personalized Medicine in Pulmonary Arterial Hypertension: Utilizing Artificial Intelligence for Death Prevention.

Journal of clinical medicine·2025
Same author

Why and When ICD Leads Are Extracted: Does the ICD Lead Model Influence Lead Survival?

Medicina (Kaunas, Lithuania)·2025

Related Experiment Video

Updated: Jul 7, 2025

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly
12:50

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly

Published on: April 14, 2014

40.3K

LECOM (Lead Extraction COMplexity): A New Scoring System for Predicting a Difficult Procedure.

Wojciech Jacheć1, Dorota Nowosielecka2,3, Bettina Ziaja4

  • 12nd Department of Cardiology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-055 Katowice, Poland.

Journal of Clinical Medicine
|December 23, 2023
PubMed
Summary

A new scoring system, the LECOM score, predicts difficult transvenous lead extraction (TLE) procedures. This tool helps clinicians anticipate complexity and improve patient management for lead removal.

Keywords:
complexity of transvenous lead extractiondifficult lead extractionrisk stratification

More Related Videos

Comparative Lesions Analysis Through a Targeted Sequencing Approach
08:16

Comparative Lesions Analysis Through a Targeted Sequencing Approach

Published on: November 5, 2019

6.8K
Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease
06:16

Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease

Published on: August 9, 2024

431

Related Experiment Videos

Last Updated: Jul 7, 2025

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly
12:50

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly

Published on: April 14, 2014

40.3K
Comparative Lesions Analysis Through a Targeted Sequencing Approach
08:16

Comparative Lesions Analysis Through a Targeted Sequencing Approach

Published on: November 5, 2019

6.8K
Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease
06:16

Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease

Published on: August 9, 2024

431

Area of Science:

  • Cardiology
  • Medical Devices
  • Interventional Procedures

Background:

  • Transvenous lead extraction (TLE) complexity can increase unexpectedly.
  • A predictive scoring system is needed to assess TLE difficulty.

Purpose of the Study:

  • To develop a simple scoring system for predicting transvenous lead extraction (TLE) difficulty and complexity.
  • To aid clinicians in planning and managing complex lead removal procedures.

Main Methods:

  • Analysis of 3741 TLE procedures to identify complicating factors.
  • Development of a five-point Complex Indicator of Difficulty of Transvenous Lead Extraction Procedure (CID-TLEP) scale.
  • Calculation of a logistic function and a predictive equation for complex TLE risk.

Main Results:

  • Key predictors of complexity include patient age at implantation, number of abandoned leads, prior procedures, lead fixation, and lead dwell time ratio.
  • A CID-TLEP score of >9.697 indicated a 21.83% higher probability of complex TLE (sensitivity 74.08%, specificity 74.46%).
  • A logistic function provides a calculated risk percentage for complex extraction: [1/(1 + 55.34 · 0.754X)] · 100.

Conclusions:

  • The LECOM score effectively predicts the risk of difficult transvenous lead extraction (TLE).
  • Predicting TLE complexity aids in procedural planning and enhances patient management strategies.