Related Experiment Video
Updated: Jun 22, 2026

07:16
Thermal Ablation for the Treatment of Abdominal Tumors
Published on: March 7, 2011
34.3K
Pulsed Field Ablation: A Systematic Review.
Poe Nu Htay1, Mya Hnin Aung2, Thiri May Sin3
1King's College London, Faculty of Life Sciences and Medicine London UK.
Health Science Reports
|May 20, 2025
Summary
Pulsed field ablation (PFA) offers a safe and effective treatment for atrial fibrillation (AF), demonstrating high success rates and fewer complications than traditional methods. Further research will refine its long-term use.
Area of Science:
- Cardiology
- Medical Devices
- Electrophysiology
Background:
- Atrial fibrillation (AF) is a common arrhythmia with significant health and economic impacts.
- Pulmonary vein isolation (PVI) is a primary treatment for AF.
- Pulsed field ablation (PFA) is an emerging PVI method, offering targeted cell death with reduced collateral damage compared to thermal ablation (radiofrequency ablation and cryoablation).
Purpose of the Study:
- To evaluate the efficacy and safety of PFA for PVI in treating AF.
- To compare PFA with traditional thermal ablation techniques.
Main Methods:
- A comprehensive literature search was conducted across major databases (PubMed, Embase, MEDLINE, Scopus, Cochrane CENTRAL, ClinicalTrials.Gov).
- Studies on PFA for AF treatment were selected and analyzed.
- Study quality was assessed using the Newcastle-Ottawa Scale.
Main Results:
- PFA demonstrated high PVI success rates (>90%) with 1-year durability around 65%.
- Low mortality (0.06%-0.32%) and stroke rates (0.3%-4.4%) were observed.
- PFA showed no esophageal injuries or pulmonary vein stenosis, sparing adjacent structures due to selective electroporation, unlike thermal methods.
- PFA has a short learning curve.
Conclusions:
- PFA is a highly effective and safe PVI method for AF treatment.
- It presents a promising alternative to thermal ablation, potentially reducing complications.
- Further research is necessary to establish long-term outcomes and standardize protocols.
Related Concept Videos
Pulse
The pulse is one of the most fundamental physiological indicators of the body's cardiovascular health. It is the rhythmic expansion and contraction of the arterial walls in response to the pressure generated by the heart's pumping action.
Pulse Rate and its Significance
Pulse rate, often measured in beats per minute (bpm), reflects the heart rate (HR), which is influenced by numerous factors such as stress, physical activity, and hormonal changes. A normal resting adult pulse rate falls between...
Pulse Rate and its Significance
Pulse rate, often measured in beats per minute (bpm), reflects the heart rate (HR), which is influenced by numerous factors such as stress, physical activity, and hormonal changes. A normal resting adult pulse rate falls between...
Heart Valves
The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
Pulse
When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
The pulse serves as a clinical indicator...
The pulse serves as a clinical indicator...
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
Abnormal findings observed during an inspection
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:
Abnormal Heart Sounds
Gallops:
Dysrhythmias V: Evaluating Dysrhythmias
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...

