Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Aggressive reduction in cholesterol levels can reduce risk for stroke by 16 percent

11.08.2006
Promising research offers important information for physicians and patients

According to data from the National Stroke Association, up to 40 percent of patients who have had a stroke will experience a second stroke within five years of the first. An international team of researchers recently completed a study to determine if the cholesterol-lowering drug Lipitor® (atorvastatin calcium) would reduce the occurrence of a second stroke. The Stroke Prevention by Aggressive Reduction of Cholesterol Levels (SPARCL) team of investigators, led by Dr. K. Michael Welch, neurologist and President and CEO of Rosalind Franklin University of Medicine and Science, published their research in today's issue of the New England Journal of Medicine.

The SPARCL study included 4,731 patients with no history of heart disease who had experienced a stroke or TIA (mini stroke) within six months of study enrollment. The patients had mildly elevated cholesterol levels, and received either 80 mg of Lipitor® or a placebo; they were then monitored for an average of five years.

Study findings indicate that patients taking Lipitor® experienced a 16-percent reduction in the risk of secondary stroke compared with patients taking a placebo. Lipitor patients also saw a 35-percent reduction in the risk of major coronary events (cardiac death, non-fatal heart attacks, or resuscitated cardiac arrest) compared to the patients taking placebo. "These cardiovascular results are remarkable in a population not known to have had heart disease," said principal investigator, Dr. K. Michael Welch.

The SPARCL study researchers conclude that their results support the initiation of statin (i.e., Lipitor®) treatment shortly after a stroke or TIA. "We believe that the findings indicate that Lipitor 80 should become an established part of secondary stroke prevention," said Dr. Welch.

An analysis of the SPARCL data was designed and conducted after the study ended to explore the types of strokes -- ischemic or hemorrhagic -- that occurred among patients in the study. Eighty-five percent of the strokes in this trial were ischemic. Patients taking Lipitor® experienced a 22-percent reduction in the risk of ischemic stroke.

Also, the number of patients in the analysis who experienced hemorrhagic stroke was very small. There were more patients in the Lipitor® group who experienced this type of stroke (2.3 percent), compared to patients taking placebo (1.4 percent). However, the overall benefit in terms of reducing the risk of stroke was still significant despite this increase, and there was no difference in the number of deaths from hemorrhagic stroke between the two treatment groups.

Every year, an estimated 15 million people worldwide suffer strokes, and 10 million will either remain disabled or die. Strokes also exact a heavy economic toll, with the lifetime cost of treating one patient with a stroke averaging more than $3 million. Reducing the risk of stroke through the application of new data, such as those revealed by the SPARCL investigation, is a key priority in cardiovascular medicine.

The 16-percent reduction in secondary stroke risk that was achieved through aggressively reducing cholesterol levels of study patients is indeed significant. "These data are important information for physicians because patients who have had a stroke are at much greater risk for suffering another one, yet treatment options to reduce their risk are limited," commented Dr. Welch.

SPARCL is an investigator-led trial coordinated by an independent steering committee and funded by Pfizer, Inc. For more information, contact Dr. K. Michael Welch, principal investigator, at michael.welch@rosalindfranklin.edu.

Kathleen Peterson | EurekAlert!
Further information:
http://www.rosalindfranklin.edu
http://www.lifeindiscovery.com

More articles from Health and Medicine:

nachricht Speed data for the brain’s navigation system
06.12.2016 | Deutsches Zentrum für Neurodegenerative Erkrankungen e.V. (DZNE)

nachricht Study suggests possible new target for treating and preventing Alzheimer's
02.12.2016 | Oregon Health & Science University

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

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...

Im Focus: Quantum Particles Form Droplets

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...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

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,...

Im Focus: Molecules change shape when wet

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...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Speed data for the brain’s navigation system

06.12.2016 | Health and Medicine

What happens in the cell nucleus after fertilization

06.12.2016 | Life Sciences

IHP presents the fastest silicon-based transistor in the world

05.12.2016 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>