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

Cardiac arrhythmias and submaximal exercise test

R Vlaicu, N Olinic, S Rentsch

    Medecine Interne
    |July 1, 1980
    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

    [Analysis of the molecular epidemiological characteristics of carbapenem-resistant <i>Klebsiella pneumoniae</i> in a hospital in Hunan Province].

    Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine]·2024
    Same author

    [Follow up analysis of 6 patients with severe trimethyltin chloride poisoning for 4 years].

    Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases·2022
    Same author

    [Application of ureteral access sheath in the operation of middle and lower ureteral calculi in patients with massive benign prostatic hyperplasia].

    Zhonghua wai ke za zhi [Chinese journal of surgery]·2022
    Same author

    [Analysis of local reactions and efficacy of CD19 chimeric antigen receptor-modified T cells therapy in recurrent/refractory B-cell lymphoma with >7.5 cm lesions].

    Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi·2021
    Same author

    [Two cases of hypoxic encephalopathy caused by simple asphyxial gas poisoning].

    Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases·2020
    Same author

    [PD-1 expression, mRNA level and cytotoxicity changes in CD19CAR-T cells].

    Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi·2019

    Cardiac arrhythmias, particularly ventricular premature beats, occurred in 6% of subjects during exercise tests. These arrhythmias often signal underlying organic heart disease, especially ischemic conditions, indicating reduced cardiac efficiency.

    Area of Science:

    • Cardiology
    • Exercise Physiology

    Background:

    • Cardiac arrhythmias are common and can be exacerbated by physical activity.
    • Identifying the underlying causes of arrhythmias is crucial for patient management.

    Purpose of the Study:

    • To investigate the incidence and characteristics of cardiac arrhythmias during submaximal exercise.
    • To explore the relationship between exercise-induced arrhythmias and cardiac efficiency, particularly in the context of organic heart disease.

    Main Methods:

    • A submaximal exercise test was administered to 1000 subjects.
    • Cardiac arrhythmias were monitored and analyzed.
    • Cardiac efficiency was assessed using indices like the tension-time index, maximal oxygen consumption, PEP, and PEP/LEVT ratio.

    Main Results:

    Related Experiment Videos

    • A 6% incidence of cardiac arrhythmias was observed.
    • Ventricular premature beats were the most frequent arrhythmia, often linked to organic, likely ischemic, heart disease.
    • Left bundle branch block and ventricular tachycardia were rare but indicative of organic heart disease.
    • Patients with exercise-induced arrhythmias showed an increased tension-time index to maximal oxygen consumption ratio, suggesting inefficient cardiac work.
    • Increased PEP and PEP/LEVT ratio during recovery in subjects with ventricular premature beats indicated lowered cardiac efficiency.

    Conclusions:

    • Cardiac arrhythmias frequently coexist with organic heart disease, particularly ischemic heart disease.
    • Exercise-induced arrhythmias may serve as indicators of reduced cardiac efficiency and underlying cardiac pathology.