The Sprint Fidelis lead has been associated with increased failure rate which resulted in the lead being removed from the market in 2007. However, even if the lead does not fail, physicians are tasked with the decision as to whether or not to prophylactically remove the Sprint Fidelis leads, explained the study's lead author Raed H. Abdelhadi, MD, a cardiac electrophysiologist at the Minneapolis Heart Institute® at Abbott Northwestern Hospital in Minneapolis.
While recent studies have shown a discrepancy in complication rates with Sprint Fidelis lead extraction, research has also demonstrated "unacceptable" failure rates, said Abdelhadi. However, there are a large number of these leads still implanted, as it was a popular lead when it was first approved by the FDA. At Minneapolis Heart Institute® alone, physicians implanted approximately 570 Sprint Fidelis leads.
"Traditionally, providers are hesitant to extract leads due to the reportedly high complication rates with the procedure," Abdelhadi explained.
Therefore, to better understand the complication rates and help guide management of patients with such leads, the researchers examined 148 patients with Medtronic Sprint Fidelis leads who underwent lead extraction at the Minneapolis Heart Institute® of Abbott Northwestern Hospital between April 2006 and July 2009.
According to the researchers, all procedures were performed by experienced electrophysiologists who met all of the training requirements set forth by the HRS.
Of the 148 Sprint Fidelis leads that were extracted, 46 percent were removed due to lead failure, 46 percent were removed prophylactically and 7 percent were removed due to infection. The average duration of the implanted leads was 36.2 months.
Of the extracted leads, 55 percent were removed by manual traction, 42 percent required the use Excimer laser sheath (SLS II, Spectranetics) and 3 percent were removed using mechanical sheaths.
All extractions were completed successfully, with no deaths or major complications associated with the extraction procedure, Abdelhadi reported.
Overall, there were three minor complications (two patients had thrombosis of the implant vein and one patient had pulmonary embolism, all were treated with anticoagulation) resulting in a 2 percent minor complication rate.
"Our results are consistent with a recent U.S. multi-center study, evaluating lead extraction among high-volume institutions," said Abdelhadi. "Understanding the actual complication rates is important because it can help providers to make decisions in properly managing this distinct patient population."
Minneapolis Heart Institute®
The Minneapolis Heart Institute® is recognized internationally as one of the world's leading providers of heart and vascular care. This state-of-the-art facility combines the finest in personalized patient care with sophisticated technology in a unique, family-oriented environment. The Institute's programs, a number of which are conducted in conjunction with Abbott Northwestern Hospital, address the full range of heart and vascular health needs: prevention, diagnosis, treatment and rehabilitation.
Minneapolis Heart Institute Foundation
The Minneapolis Heart Institute Foundation is dedicated to creating a world without heart disease through groundbreaking clinical research and innovative education programs. MHIF's mission is to promote and improve cardiovascular health, quality of life and longevity for all.
Meghan Bethke | EurekAlert!
UTSA study describes new minimally invasive device to treat cancer and other illnesses
02.12.2016 | University of Texas at San Antonio
Earlier Alzheimer's diagnosis may be possible with new imaging compound
02.11.2016 | Washington University School of Medicine
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water
In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...
The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.
Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
02.12.2016 | Medical Engineering
02.12.2016 | Agricultural and Forestry Science
02.12.2016 | Physics and Astronomy