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 Experiment Videos

Localizing ventricular tachycardia through entrainment.

C T Kuo1, N Luqman, K H Lin

  • 1First Section of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, 5 Fu-Shin Street, Kweishan Hsiang, Taoyuan, Taiwan, R.O.C. chitai@adm.cgmh.org.tw

Chang Gung Medical Journal
|June 22, 2001
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

[Research progress on the involvement of probiotics in the neurodevelopment of preterm infants by regulating the microbiome-gut-brain axis].

Zhonghua er ke za zhi = Chinese journal of pediatrics·2025
Same author

Potential Drug Dose-Specific Adverse Three-Drug Combinations: A US Insurance Claims Data-Based Study.

Pharmacoepidemiology and drug safety·2025
Same author

[Latent-class analysis of intimate partner violence and HIV high risk behaviors among college students in Zhuhai].

Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi·2025
Same author

Measurable residual disease-driven treatment in first-line chronic lymphocytic leukaemia.

British journal of haematology·2024
Same author

Prevalence of Ruminant Paramphistomosis and Comparative Histopathology of the Infected Rumens in Narowal District, Punjab, Pakistan.

Helminthologia·2023
Same author

Drinking water quality of various sources in Peshawar, Mardan, Kohat and Swat districts of Khyber Pakhtunkhwa province, Pakistan.

Brazilian journal of biology = Revista brasleira de biologia·2022
Same journal

Leiomyosarcoma of the adrenal vein.

Chang Gung medical journal·2012
Same journal

Chemotherapy with gemcitabine plus cisplatin in patients with advanced biliary tract carcinoma at Chang Gung Memorial Hospital: a retrospective analysis.

Chang Gung medical journal·2012
Same journal

Team innovation climate and knowledge sharing among healthcare managers: mediating effects of altruistic intentions.

Chang Gung medical journal·2012
Same journal

Everolimus in metastatic renal cell carcinoma: preliminary experience from Chang Gung Memorial Hospital.

Chang Gung medical journal·2012
Same journal

Factors associated with strain in informal caregivers of stroke patients.

Chang Gung medical journal·2012
Same journal

Serum lipid profile could predict the inception and impacts of violent behaviors among acute psychiatric inpatients.

Chang Gung medical journal·2012
See all related articles

Identifying slow conduction areas is key for ventricular tachycardia (VT) ablation. The entrainment method, particularly concealed entrainment, helps pinpoint these critical links in the reentry circuit, improving ablation success.

Area of Science:

  • Cardiovascular Electrophysiology
  • Cardiac Arrhythmias
  • Interventional Cardiology

Background:

  • Ventricular tachycardia (VT) often involves slow conduction areas within reentry circuits.
  • Effective ablation of VT post-myocardial infarction requires precise localization of these slow conduction zones.
  • Current mapping techniques lack specificity in identifying critical links for ablation.

Purpose of the Study:

  • To evaluate the utility of the entrainment method for localizing slow conduction areas in VT.
  • To differentiate pacing sites within the reentry circuit from bystander sites.
  • To enhance the prediction of successful radiofrequency ablation for post-infarction VT.

Main Methods:

  • Utilizing the entrainment method, including concealed entrainment, to map VT circuits.

Related Experiment Videos

  • Analyzing stimulus-to-QRS (S-QRS) and electrogram-to-QRS (EG-QRS) intervals during pacing.
  • Measuring post-pacing intervals (PPI) and comparing them to tachycardia cycle length.
  • Correlating entrainment findings with diastolic potentials, double potentials, and continuous electrical activity.

    • Main Results:

    • Concealed entrainment can occur at both circuit and bystander sites.
    • Pacing within the slow conduction area shows S-QRS = EG-QRS and PPI approximating tachycardia cycle length.
    • Pacing at bystander sites may yield different S-QRS intervals and PPI exceeding tachycardia cycle length.
    • Combining concealed entrainment with other electrophysiological signals improves localization accuracy.

    Conclusions:

    • The entrainment method, especially concealed entrainment, is valuable for identifying slow conduction zones in VT.
    • Distinguishing circuit from bystander sites using pacing intervals and PPI is crucial for targeted ablation.
    • Integration of entrainment with diastolic potentials and continuous activity enhances prediction of successful VT ablation.