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

[Bradycardia despite hyperthyroidism].

M Kentsch1, W Otter, B Kröger

  • 1Medizinische Abteilung Krankenhaus Itzehoe Akademisches Lehrkrankenhaus, Universitäten Kiel und Lübeck Robert-Koch-Str. 2 25524 Itzehoe, Germany. m.kentsch@kh.itzehoe.de

Zeitschrift Fur Kardiologie
|August 23, 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

Minimising Risks of Reduced Genetic Diversity in Marine Restoration.

Evolutionary applications·2026
Same author

Short report on a 6-week at-home exergaming intervention to improve balance in children with developmental coordination disorder.

Research in developmental disabilities·2024
Same author

A randomized controlled trial of acupuncture and receptive music therapy for sleep disorders in the elderly-ELAMUS: study protocol.

BMC complementary medicine and therapies·2024
Same author

Reducing Grip Uncertainty During Initial Prosthetic Hand Use Improves Eye-Hand Coordination and Lowers Mental Workload.

Journal of motor behavior·2024
Same author

The corticomuscular response to experimental pain via blood flow occlusion when applied to the ipsilateral and contralateral leg during an isometric force task.

Psychophysiology·2023
Same author

Minimally invasive laparo-thoracoscopic Ivor-Lewis esophagectomy with semi-mechanical triangular anastomosis: Short-term outcomes of 114 consecutive patients.

Journal of visceral surgery·2022
Same journal

[Not Available].

Zeitschrift fur Kardiologie·2016
Same journal

[Not Available].

Zeitschrift fur Kardiologie·2016
Same journal

[On pathogenesis of coronary heart disease].

Zeitschrift fur Kardiologie·2016
Same journal

An overview of the evolution of the atherosclerotic plaque: from fatty streak to plaque rupture and thrombosis.

Zeitschrift fur Kardiologie·2016
Same journal

[Not Available].

Zeitschrift fur Kardiologie·2016
Same journal

[Reconstructive surgery of the aortic root].

Zeitschrift fur Kardiologie·2016
See all related articles

Hyperthyroidism can occur in patients with bradycardia needing pacemakers. This study found hyperthyroidism prevalence similar to the general population, suggesting bradycardia doesn't rule out thyroid issues.

Area of Science:

  • Cardiology
  • Endocrinology
  • Internal Medicine

Background:

  • Hyperthyroidism is typically linked to tachycardia, while hypothyroidism is associated with bradycardia.
  • Clinically inapparent hyperthyroidism was observed in patients requiring pacemaker implantation.

Purpose of the Study:

  • To investigate the occurrence of hyperthyroidism in patients receiving their first permanent pacemaker.
  • To determine if bradycardia excludes hyperthyroidism in pacemaker patients.

Main Methods:

  • A study of 237 patients (age 71.4 ± 8.9 years; 54.9% females) undergoing first permanent pacemaker implantation.
  • Assessment of subclinical and overt hyperthyroidism using thyroid-stimulating hormone (TSH) and free triiodothyronine (fT3) levels.
  • Comparison of hyperthyroid patients with euthyroid controls.

Related Experiment Videos

Main Results:

  • 16 patients (6.75%) had subclinical hyperthyroidism (TSH < 0.1 mE/L, fT3 ≤ 9.0 pmol/L).
  • 4 patients (1.69%) had overt hyperthyroidism (TSH < 0.1 mE/L, fT3 > 9.0 pmol/L).
  • Hyperthyroid patients were significantly older and more likely to be female compared to euthyroid patients (p=0.015 and p=0.018, respectively).

Conclusions:

  • Bradycardia does not preclude the presence of hyperthyroidism.
  • Temporary pacing is advised for thyrotoxicosis with bradycardia.
  • Permanent pacemaker implantation is adequate for patients with bradycardia, cardiovascular disease, and hyperthyroidism.