Related Experiment Video

Updated: May 5, 2026

In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
08:13

In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography

Published on: February 16, 2016

21.6K

Overestimated Myocardial Ischemia

Hang Lv1, Ming Liu2

  • 1Department of Function Test, Wuhan Asia General Hospital, Wuhan, P.R. China.

Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc
|March 28, 2025
PubMed

Insights

This case highlights how apical pulsation after mitral valve surgery can create ECG artifacts, mimicking serious conditions. Accurate identification of these artifacts is crucial to prevent unnecessary patient interventions.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Clinical Electrocardiography

Background:

  • Mitral valve prolapse with severe regurgitation necessitates surgical intervention.
  • Post-mitral valve replacement surgery requires careful patient monitoring.
  • Electrocardiography (ECG) is a standard diagnostic tool in cardiac care.

Observation:

  • A 69-year-old female patient exhibited ECG abnormalities post-mitral valve replacement surgery.
  • Precordial leads showed pseudo-ST segment depression and prolonged QT interval.
  • These findings were attributed to apical pulsation artifact.

Findings:

  • Apical pulsation can significantly interfere with ECG readings in the precordial leads.
  • This interference can mimic pathological ST-segment depression and QT prolongation.
  • Distinguishing artifact from true cardiac events is essential for correct diagnosis.

Implications:

  • Misinterpretation of ECG artifacts can lead to unnecessary diagnostic procedures and treatments.
  • Clinicians must be vigilant in recognizing apical pulsation artifacts.
  • Improved awareness can enhance patient safety and optimize resource utilization in cardiac care.

Keywords:
artifactsclinicalnoninvasive techniques‐electrocardiography

More Related Videos

Primary Outcome Assessment in a Pig Model of Acute Myocardial Infarction14:19

Primary Outcome Assessment in a Pig Model of Acute Myocardial Infarction

Published on: October 14, 2016

11.0K
Model of Ischemia and Reperfusion Injury in Rabbits06:11

Model of Ischemia and Reperfusion Injury in Rabbits

Published on: November 3, 2023

2.0K

Related Concept Videos

Ischemic Heart Disease: Overview01:17

Ischemic Heart Disease: Overview

Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and...
3.8K
Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
3.3K
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
495