We use cookies to understand how you use our site and to improve your experience. This includes personalizing content and advertising. To learn more, click here. By continuing to use our site, you accept our use of cookies. Cookie Policy.

Features Partner Sites Information LinkXpress
Sign In
Advertise with Us

Download Mobile App




Injectable Hydrogel Electrodes Offers Ground-Breaking Treatment Regimen for Arrhythmia

By HospiMedica International staff writers
Posted on 10 Jan 2024
Print article
Image: The innovative hydrogel technology was deployed through minimally invasive catheter delivery in a pig model (Photo courtesy of Nature)
Image: The innovative hydrogel technology was deployed through minimally invasive catheter delivery in a pig model (Photo courtesy of Nature)

Ventricular arrhythmia, a serious heart condition occurring in the lower chambers or ventricles, is a primary cause of sudden cardiac death. This condition involves a self-sustained heart rhythm abnormality known as re-entrant arrhythmia, which can be life-threatening. Currently, arrhythmias are treated with medications and procedures aimed at regulating irregular heartbeats. However, the available anti-arrhythmic drugs are not always effective and can sometimes exacerbate re-entrant arrhythmia by slowing conduction velocity. Additionally, these drugs can be toxic and may harm tissues near the heart's diseased areas. Interventional ablation therapies, though widely used, see arrhythmia recurrence in a significant number of patients and don't address the re-entry mechanism. Implanted cardiac defibrillators, designed to offset these limitations, can be painful when delivering electric shocks to normalize heart rhythm, impacting patient quality of life. Untreated, arrhythmia can harm the heart and other organs, potentially leading to stroke or cardiac arrest.

The need for an effective therapeutic regimen for ventricular arrhythmia encouraged researchers at the Texas Heart Institute (THI, Houston, TX, USA) to develop an innovative treatment approach specifically targeting the pathophysiology of re-entrant arrhythmia. In a breakthrough study, the researchers have demonstrated the design and feasibility of a new hydrogel-based pacing modality, setting the foundation for a ground-breaking treatment regimen for treating ventricular arrhythmia. The hydrogels, known for their biostability, biocompatibility, and tunable properties, are being investigated as potential electrodes that can be efficiently delivered into coronary veins while avoiding ischemia. Re-entrant arrhythmia often originates from delayed conduction in scarred heart tissues following coronary artery occlusion, typically during a heart attack. This can be remedied by pacing these areas.

The THI researchers have designed hydrogels that can reach scarred tissues, thus allowing direct pacing of heart regions that are otherwise hard to access. Once injected into targeted vessels, these conductive hydrogels adapt to the patient's vessel shape. Integrating these gels with a conventional pacemaker enables pacing that imitates the heart's natural electrical rhythm, effectively neutralizing the arrhythmia source and offering pain-free defibrillation. This innovative hydrogel technology was successfully tested through minimally invasive catheter delivery in a pig model. The study is the first to demonstrate the ability to directly electrically stimulate both native and scarred mid-myocardium using injectable hydrogel electrodes as a pacing modality. By combining this with standard pacemaker technology and minimally invasive delivery methods, the study demonstrates the viability of a new pacing approach that mimics the heart's natural electrical rhythm. This could potentially eliminate lethal re-entrant arrhythmias and provide painless defibrillation while integrating smoothly into clinical practice. This significant scientific breakthrough, particularly in terms of pain management for patients with heart, lung, and blood diseases, could transform the management of cardiac rhythms.

Related Links:
THI

Gold Member
Disposable Protective Suit For Medical Use
Disposable Protective Suit For Medical Use
Gold Member
SARS‑CoV‑2/Flu A/Flu B/RSV Sample-To-Answer Test
SARS‑CoV‑2/Flu A/Flu B/RSV Cartridge (CE-IVD)
Silver Member
Wireless Mobile ECG Recorder
NR-1207-3/NR-1207-E
New
Intraventricular Neuroendosopic System
MINOP

Print article
Detecto

Channels

Surgical Techniques

view channel
Image: ROSA Shoulder is a groundbreaking robotic system for anatomic and reverse shoulder arthroplasty (Photo courtesy of Zimmer Biomet)

World's First Robotic Assistant for Shoulder Replacement Surgery Helps Perform Highly Complex Procedures

A key challenge in performing a shoulder replacement is accurate glenoid and humeral placement, which is a critical factor for post-operative function and long-term implant survival. Now, a groundbreaking... Read more

Patient Care

view channel
Image: The newly-launched solution can transform operating room scheduling and boost utilization rates (Photo courtesy of Fujitsu)

Surgical Capacity Optimization Solution Helps Hospitals Boost OR Utilization

An innovative solution has the capability to transform surgical capacity utilization by targeting the root cause of surgical block time inefficiencies. Fujitsu Limited’s (Tokyo, Japan) Surgical Capacity... Read more

Health IT

view channel
Image: First ever institution-specific model provides significant performance advantage over current population-derived models (Photo courtesy of Mount Sinai)

Machine Learning Model Improves Mortality Risk Prediction for Cardiac Surgery Patients

Machine learning algorithms have been deployed to create predictive models in various medical fields, with some demonstrating improved outcomes compared to their standard-of-care counterparts.... Read more

Point of Care

view channel
Image: The new eye-safe laser technology can diagnose traumatic brain injury (Photo courtesy of 123RF)

Novel Diagnostic Hand-Held Device Detects Known Biomarkers for Traumatic Brain Injury

The growing need for prompt and efficient diagnosis of traumatic brain injury (TBI), a major cause of mortality globally, has spurred the development of innovative diagnostic technologies.... Read more
Copyright © 2000-2024 Globetech Media. All rights reserved.