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The Holter Monitor: Catching Arrhythmias in Daily Life
Tests & Procedures The Holter Monitor: Catching Arrhythmias in Daily Life A standard ECG captures 10 seconds of heart rhythm. A Holter monitor records it across 24 to 48 hours of real life, catching arrhythmias that would otherwise go undetected.
Kathy Marinias RN · Feb 12, 2025
When a Standard ECG Isn’t Enough: A Guide to Cardiac Rhythm Monitoring
Tests & Procedures When a Standard ECG Isn’t Enough: A Guide to Cardiac Rhythm Monitoring A normal ECG when you feel well does not rule out an arrhythmia. This guide explains the monitoring options available, from Holter monitors to implantable loop recorders.
Kathy Marinias RN · Feb 8, 2025
Understanding Dizziness: A Cardiologist’s Guide
Symptoms Understanding Dizziness: A Cardiologist’s Guide Dizziness means something different to almost everyone who uses the word, and that description is what points to the cause. A cardiologist explains the four types, what causes each, and when your heart is involved.
Prof. Peter Barlis · Jun 2, 2026
Racing Heart: Causes and Patterns Explained
Symptoms Racing Heart: Causes and Patterns Explained Almost everyone has felt their heart race at some point. Most of the time it is benign and self-limiting. Sometimes it is the sign of an arrhythmia worth identifying. Here is what the different patterns mean and how they are usually approached.
Prof. Peter Barlis · May 20, 2026
Stroke and TIA Explained
Conditions Stroke and TIA Explained Understanding stroke and TIA in plain language. This guide explains what each is, the investigations that follow, the medications used in prevention, and the lifestyle steps that support long-term brain health.
Prof. Peter Barlis · May 17, 2026
Hypertrophic Cardiomyopathy: What HCM Actually Means
Conditions Hypertrophic Cardiomyopathy: What HCM Actually Means Most people with HCM live completely normal lives. Here is what the diagnosis means, what monitoring is needed, and why the outlook is better than most expect.
Prof. Peter Barlis · May 13, 2026
Smartwatches and Heart Health: What They Can and Cannot Detect
Live Well Smartwatches and Heart Health: What They Can and Cannot Detect Modern smartwatches can detect atrial fibrillation, record a single-lead ECG, and alert you to abnormal heart rates. These are genuinely useful features. But they come with real limitations that every patient needs to understand before acting on an alert.
Prof. Peter Barlis · May 3, 2026
Leadless Pacemakers: A New Era in Cardiac Pacing
Tests & Procedures Leadless Pacemakers: A New Era in Cardiac Pacing Leadless pacemakers offer a promising alternative to traditional devices, no leads, no chest wound. Here's how they work.
Prof. Peter Barlis · Apr 12, 2026
SVT (Supraventricular Tachycardia) Explained: Causes and Treatment
Conditions SVT (Supraventricular Tachycardia) Explained: Causes and Treatment SVT causes a sudden, rapid heartbeat, usually harmless but alarming. Knowing your triggers, diagnosis, and treatment options makes it manageable.
Prof. Peter Barlis · Apr 12, 2026
Understanding Ventricular Tachycardia: and Why Treatment Works
Conditions Understanding Ventricular Tachycardia: and Why Treatment Works Ventricular tachycardia is a fast heart rhythm originating in the lower chambers of the heart. With the treatments available today, most people do very well.
Kathy Marinias RN · Mar 10, 2026
POTS: Understanding Postural Orthostatic Tachycardia Syndrome
Conditions POTS: Understanding Postural Orthostatic Tachycardia Syndrome POTS causes the heart rate to surge on standing — bringing dizziness, palpitations, brain fog, and fatigue that ease on lying down. Real, measurable, and very treatable.
Prof. Peter Barlis · Feb 23, 2026
SVT: A Nasal Spray That Can Stop an Episode at Home
Conditions SVT: A Nasal Spray That Can Stop an Episode at Home A nasal spray that can stop SVT episodes at home has shown promising trial results. Here's how it works and who it might help.
Prof. Peter Barlis · Feb 16, 2026

Understanding Dizziness: A Cardiologist’s Guide

heartmatters.com 71

Dizziness means something different to almost everyone who uses the word, and that description is what points to the cause. A cardiologist explains the four types, what causes each, and when your heart is involved.

Racing Heart: Causes and Patterns Explained

racing heart

Almost everyone has felt their heart race at some point. Most of the time it is benign and self-limiting. Sometimes it is the sign of an arrhythmia worth identifying. Here is what the different patterns mean and how they are usually approached.

Stroke and TIA Explained

Brain MRI scans showing imaging used after stroke and TIA assessment

Understanding stroke and TIA in plain language. This guide explains what each is, the investigations that follow, the medications used in prevention, and the lifestyle steps that support long-term brain health.