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

Pulse rhythm01:30

Pulse rhythm

852
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
852
Holter Monitor: 24-Hour Monitoring01:23

Holter Monitor: 24-Hour Monitoring

67
Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
67
Electrocardiogram01:29

Electrocardiogram

2.5K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
2.5K
Dysrhythmias V: Evaluating Dysrhythmias01:30

Dysrhythmias V: Evaluating Dysrhythmias

42
Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...
42
Antiarrhythmic Drugs: Class III Agents as Potassium Channel Blockers01:12

Antiarrhythmic Drugs: Class III Agents as Potassium Channel Blockers

1.1K
Class III antiarrhythmic drugs are a group of medications that can prolong action potentials in the heart. They achieve this by blocking potassium channels or enhancing inward currents from sodium channels. However, these drugs have a unique property of "reverse use-dependence," which is most pronounced at slower heart rates and can lead to torsades de pointes—a specific type of arrhythmia. However, it is essential to note that excessive QT interval prolongation—a measure of...
1.1K
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias

51
Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
51

You might also read

Related Articles

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

Sort by
Same author

[Next-generation pharmaceutically acceptable vehicles for eye drops (preliminary report)].

Vestnik oftalmologii·2026
Same author

[Experimental assessment of mass transfer in the human cornea using cesium ion migration as a model].

Vestnik oftalmologii·2026
Same author

[Distal transradial access for non-coronary endovascular restrictions].

Angiologiia i sosudistaia khirurgiia = Angiology and vascular surgery·2026
Same author

Activation of the ERK1/2 Molecular Pathways and Its Relation to the Pathogenicity of Human Malignant Tumors.

Acta naturae·2025
Same author

[Exercise therapy in outpatient rehabilitation programmes for patients with comorbid digestive pathology in colon cancer and chronic pancreatitis. (Open randomized controlled trial)].

Voprosy kurortologii, fizioterapii, i lechebnoi fizicheskoi kultury·2025
Same author

[Development and validation of Russian olfactory test].

Vestnik otorinolaringologii·2024

Related Experiment Video

Updated: Jul 26, 2025

Zebra II as A Novel System to Record Electrophysiological Signals in Zebrafish
06:15

Zebra II as A Novel System to Record Electrophysiological Signals in Zebrafish

Published on: August 16, 2024

483

[Remote Monitoring of the QT Interval During Polychemotherapy].

Z Z A Fashafsha1, P Sh Chomakhidze1, D F Mesitskaya2

  • 1Word-Class Research Center Institute of Personalized Cardiology, Center "Digital Biodesign and Personalized Healthcare of the Sechenov First Moscow State Medical University, Moscow.

Kardiologiia
|June 12, 2023
PubMed
Summary

Remote single-channel electrocardiogram (ECG) monitoring effectively detects prolonged corrected QT interval (QTc) in cancer patients undergoing polychemotherapy (PCT). This method aids in identifying potential cardiac rhythm disorders during treatment.

More Related Videos

Nerve Excitability Assessment in Chemotherapy-induced Neurotoxicity
07:42

Nerve Excitability Assessment in Chemotherapy-induced Neurotoxicity

Published on: April 26, 2012

18.3K
Methods for ECG Evaluation of Indicators of Cardiac Risk, and Susceptibility to Aconitine-induced Arrhythmias in Rats Following Status Epilepticus
08:28

Methods for ECG Evaluation of Indicators of Cardiac Risk, and Susceptibility to Aconitine-induced Arrhythmias in Rats Following Status Epilepticus

Published on: April 5, 2011

17.8K

Related Experiment Videos

Last Updated: Jul 26, 2025

Zebra II as A Novel System to Record Electrophysiological Signals in Zebrafish
06:15

Zebra II as A Novel System to Record Electrophysiological Signals in Zebrafish

Published on: August 16, 2024

483
Nerve Excitability Assessment in Chemotherapy-induced Neurotoxicity
07:42

Nerve Excitability Assessment in Chemotherapy-induced Neurotoxicity

Published on: April 26, 2012

18.3K
Methods for ECG Evaluation of Indicators of Cardiac Risk, and Susceptibility to Aconitine-induced Arrhythmias in Rats Following Status Epilepticus
08:28

Methods for ECG Evaluation of Indicators of Cardiac Risk, and Susceptibility to Aconitine-induced Arrhythmias in Rats Following Status Epilepticus

Published on: April 5, 2011

17.8K

Area of Science:

  • Cardiology
  • Oncology
  • Medical Technology

Context:

  • Cancer patients undergoing polychemotherapy (PCT) are at risk for cardiac complications.
  • Monitoring cardiac function, specifically the corrected QT interval (QTc), is crucial during oncological treatment.
  • Traditional ECG monitoring may not capture transient cardiac events effectively.

Purpose:

  • To evaluate the incidence of prolonged QTc intervals in primary oncological patients receiving elective PCT.
  • To assess the effectiveness of remote, single-channel electrocardiogram (ECG) monitoring using a portable device.
  • To identify cardiac rhythm disorders in patients undergoing chemotherapy.

Summary:

  • A study involving 49 oncological patients undergoing elective PCT utilized a portable CardioQVARK electrocardiograph for single-channel ECG recordings between chemotherapy courses.
  • Analysis revealed prolonged QTc intervals: >500 msec in 8.2%, >480 msec in 18.3%, and >60 msec from baseline in 12.2% of cases.
  • Remote single-channel ECG monitoring proved effective in detecting various heart rhythm disorders.

Impact:

  • Remote ECG monitoring offers a practical and effective approach for cardiac surveillance in cancer patients undergoing chemotherapy.
  • Early detection of QTc prolongation can guide treatment adjustments and mitigate risks of serious arrhythmias.
  • This technology facilitates continuous patient monitoring, potentially improving patient outcomes and reducing hospital visits.