Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Cardiovascular System Abnormal Findings I: Inspection and Palpation

Cardiovascular System Abnormal Findings I: Inspection and Palpation

In a cardiovascular examination, inspection and palpation are crucial for identifying abnormalities.
Abnormal findings observed during an inspection

Cardiovascular System Abnormal Findings II: Auscultation

Cardiovascular System Abnormal Findings II: Auscultation

Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
Abnormal Heart Sounds
Gallops:

Imaging Studies for Cardiovascular System III: X-Ray

Imaging Studies for Cardiovascular System III: X-Ray

The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...

Mitral Stenosis II: Clinical features and Diagnostic Tests

Mitral Stenosis II: Clinical features and Diagnostic Tests

Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...

Development of the Heart

Development of the Heart

The development of the human heart, a crucial organ, commences from the mesoderm on the 18th or 19th day after fertilization. This process initiates in the cardiogenic area, a group of mesodermal cells at the embryo's head end, which evolves into elongated strands known as cardiogenic cords. These cords undergo a transformation to form hollow-centered endocardial tubes.
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart tube by...

Mitral Valve Prolapse I: Introduction

Mitral Valve Prolapse I: Introduction

IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...

You might also read

Related Articles

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

Sort by

Same author

Metastatic Melanoma Presenting as an Orbital Mass.

Ophthalmic plastic and reconstructive surgery·2026

Same author

Cancerous Arrhythmia: Metastatic Cervical Cancer to the Heart Complicated by Ventricular Tachycardia.

JACC. Case reports·2026

Same author

A student-led pilot lecture in nutrition as a catalyst for curriculum change: A case study from one medical school.

PloS one·2026

Same author

Prospective association between long COVID and COVID-related post-traumatic stress disorder among a population-based cohort of adults diagnosed with COVID-19 in Michigan.

Journal of affective disorders·2026

Same author

Middle meningeal artery as a pathway to innovative treatments: ARISE III consensus recommendations.

Journal of neurointerventional surgery·2026

Same author

Feasibility of Creating a Teaching and Learning Kitchen for an Interdisciplinary Group of Medical Professional Students While Creating a Bridge With an Inner-City Miami Community.

Global advances in integrative medicine and health·2026

Search research articles

Related Experiment Video

Updated: May 22, 2026

A Pipeline to Characterize Structural Heart Defects in the Fetal Mouse

A Pipeline to Characterize Structural Heart Defects in the Fetal Mouse

Published on: December 16, 2022

Left P-Wave Axis Deviation: A Clue for Cardiovascular Malformation?

Nicholas Borkey¹, Peter Aziz¹, Akash Patel¹

¹Cleveland Clinic Children's, Cleveland, Ohio, USA.

JACC. Case Reports

|May 21, 2026

Summary

Left atrial axis deviation on an electrocardiogram can be a normal finding in children, known as low atrial rhythm. However, it may also signal underlying heart abnormalities requiring further pediatric cardiology evaluation.

Keywords:

congenital heart defect echocardiography electrocardiogram

More Related Videos

Murine Fetal Echocardiography

Murine Fetal Echocardiography

Published on: February 15, 2013

Left Atrial Ligation in the Avian Embryo as a Model for Altered Hemodynamic Loading During Early Vascular Development

Left Atrial Ligation in the Avian Embryo as a Model for Altered Hemodynamic Loading During Early Vascular Development

Published on: June 16, 2023

Related Experiment Videos

Last Updated: May 22, 2026

A Pipeline to Characterize Structural Heart Defects in the Fetal Mouse

A Pipeline to Characterize Structural Heart Defects in the Fetal Mouse

Published on: December 16, 2022

Murine Fetal Echocardiography

Murine Fetal Echocardiography

Published on: February 15, 2013

Left Atrial Ligation in the Avian Embryo as a Model for Altered Hemodynamic Loading During Early Vascular Development

Left Atrial Ligation in the Avian Embryo as a Model for Altered Hemodynamic Loading During Early Vascular Development

Published on: June 16, 2023

Area of Science:

Pediatric Cardiology
Cardiac Electrophysiology

Background:

Left atrial axis deviation on electrocardiograms (ECG) often suggests a nonsinus atrial rhythm.
While commonly a benign finding (low atrial rhythm) in children with healthy hearts, it can also indicate congenital heart defects.

Purpose of the Study:

To evaluate the significance of left atrial axis deviation in a pediatric patient presenting with a cardiac murmur.
To differentiate between normal variations and potential cardiovascular malformations.

Main Methods:

A 12-year-old female underwent a pediatric cardiology consultation for a heart murmur.
Diagnostic tools included cardiac auscultation, a 15-lead electrocardiogram (ECG), and a transthoracic echocardiogram.

Main Results:

The patient exhibited a systolic ejection murmur consistent with Still's murmur, a common benign finding.
Further results from the ECG and echocardiogram are pending analysis to determine the cause of the left atrial axis deviation.

Conclusions:

Left atrial axis deviation necessitates careful evaluation in pediatric cardiology.
Distinguishing between normal physiological variants and pathological conditions is crucial for appropriate patient management.