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
PURITAN MEDICAL

Download Mobile App




Events

ATTENTION: Due to the COVID-19 PANDEMIC, many events are being rescheduled for a later date, converted into virtual venues, or altogether cancelled. Please check with the event organizer or website prior to planning for any forthcoming event.

Breakthrough Device Combined With Rapid Diagnostic Test Could Represent Future of Sepsis Care

By HospiMedica International staff writers
Posted on 12 Jul 2022
Print article
Image: PMX is indicated for patients with sepsis and endotoxemia or suspected gram negative infection (Photo courtesy of Spectral Medical)
Image: PMX is indicated for patients with sepsis and endotoxemia or suspected gram negative infection (Photo courtesy of Spectral Medical)

Sepsis is a life threatening condition caused by the body’s response to bacterial products such as endotoxin. Sepsis is a challenging disease affecting millions worldwide, and if not recognized early and treated promptly, sepsis can lead to multiple organ failure, shock and death. Endotoxin, also referred to as Lipopolysaccharide (LPS), a component of the cell wall of Gram negative bacteria, is one of the main triggers of the pathogenesis of septic shock and multiple organ failure. Among the various strategies studied to eliminate endotoxin, Polymyxin-B hemoperfusion has been the most effective in blocking the toxic effects of endotoxin by virtue of its electrochemical affinity with Lipid A (common to all species of endotoxin). Now, a therapeutic hemoperfusion device guided by the only FDA-cleared diagnostic assay for the risk of developing sepsis removes endotoxin from the bloodstream.

Spectral Medical Inc.’s (Toronto, Canada) Toraymyxin (PMX) device removes endotoxin from the blood using the electrochemical properties of Polymyxin-B, while avoiding known side effects of its systemic administration. The PMX cartridge contains polystyrene composite woven fibre with Polymyxin-B immobilized on the surface through covalent bonding. The blood flows radially and uniformly through the fibers at a rate of 80-120 mL/min before exiting the cartridge. PMX selectively adsorbs circulating endotoxin, thereby helping to rebalance the innate immune system. Removal of endotoxin leads to a decrease in inflammatory mediator levels, as well as an improvement in vascular function and hemodynamics. The US Food & Drug Administration (FDA) has granted Breakthrough Device designation for the company’s PMX device.

Additionally, scientists at Spectral have incorporated the body’s natural mechanisms of endotoxin detection and adapted them into a system that provides an accurate endotoxin measurement within 30 minutes. The Endotoxin Activity Assay (EAA) test is a chemiluminescent bio-assay based on the oxidative burst reaction of activated neutrophils to complement coated LPS-IgM immune complexes. The IgM antibody, a key reagent, is specific for the Lipid A portion of endotoxin (LPS). In the presence of LPS, the ensuing oxidative burst results in light emission in the presence of luminol. Each EAA test relies on three reactions: the first reaction is a negative control which allows each patient to be their own control, the second is the test sample and the third is a maximum chemiluminescence calibrator with a high level of exogenous endotoxin. EAA is the only Health Canada licensed, FDA cleared, and CE marked rapid diagnostic for endotoxin activity in human whole blood.

“We are entering an era of personalized medicine for critical illnesses,” said Dr. John Kellum, Chief Medical Officer of Spectral. “By breaking up sepsis into subsets that have specific molecular pathogenesis, we believe our strategy targeting endotoxemic septic shock, characterized by high levels of endotoxin in the bloodstream, is far more likely to succeed, where other non-specific therapies have failed time and again. Our goal is to show a large difference in mortality when an anti-endotoxin therapy is applied to carefully selected patients with high endotoxin activity in their bloodstream. Moreover, we have a diagnostic test already in clinical use to identify these patients. We believe this combination of an advanced diagnostic with a specific therapy represents the future of sepsis care.”

Related Links:
Spectral Medical Inc.


Print article
Radcal

Channels

Surgical Techniques

view channel
Image: The NaoTrac CE-certified neurosurgical navigation robot has received TFDA approval (Photo courtesy of Brain Navi Biotechnology)

Neurosurgical Navigation Robot Combines AI and Machine Vision to Streamline Procedures

Amidst the increasing demand for minimally invasive surgery, neuro-navigation has become standard in neurosurgery worldwide. Currently, most navigation systems use a “vision-based optical tracking system”... Read more

Patient Care

view channel
Image: The biomolecular film can be picked up with tweezers and placed onto a wound (Photo courtesy of TUM)

Biomolecular Wound Healing Film Adheres to Sensitive Tissue and Releases Active Ingredients

Conventional bandages may be very effective for treating smaller skin abrasions, but things get more difficult when it comes to soft-tissue injuries such as on the tongue or on sensitive surfaces like... Read more

Health IT

view channel
Image: AI can reveal a patient`s heart health (Photo courtesy of Mayo Clinic)

AI Trained for Specific Vocal Biomarkers Could Accurately Predict Coronary Artery Disease

Earlier studies have examined the use of voice analysis for identifying voice markers associated with coronary artery disease (CAD) and heart failure. Other research groups have explored the use of similar... Read more

Business

view channel
Image: The global capsule endoscopy system market is growing at a rapid pace (Photo courtesy of Pexels)

Capsule Endoscopy System Market Driven by Rising Preference for Minimally Invasive Screening Procedure

Capsule endoscopy is generally a non-invasive technique that enables complete examination of the gastrointestinal tract with the use of the disposable and wireless device known as the video capsule.... Read more
Copyright © 2000-2022 Globetech Media. All rights reserved.