Posts Tagged ‘MRSA’

Correlation Between Methicillin-Resistant Staphylococcus Aureus and Cystic Fibrosis Proven

July 9, 2010

Led by Dr. Elliott Dasenbrook MD MHS, Associate Director of The Adult Cystic Fibrosis Program, a UHCMC team in the Division of Pulmonary, Critical Care, and Sleep Medicine have published the findings from a major study about cystic fibrosis (CF) survival rates in the June 16 issue of JAMA.

Specifically, the study observed patients with CF who had methicillin-resistant Staphylococcus aureus (MRSA) detected in their respiratory tract.

The team composed a study with 19,833 CF patients across the nation between ages 6 and 45.  Times until death after diagnosis with MRSA were recorded in order to compare survival between CF patients with and without respiratory tract MRSA.

The unadjusted mortality rate was 18.3 deaths (95% confidence interval [CI], 17.5-19.1) per 1000 patient-years in patients without MRSA and 27.7 deaths (95% CI, 25.3-30.4) per 1000 patient-years in those with MRSA.  The team showed that there is a significantly higher rate of death in CF in people that have MRSA.

“Our study findings may prompt many doctors to reconsider how they care for CF patients,” says Dr. Dasenbrook. He adds, “Until now, some CF doctors weren’t aggressively treating patients with MRSA.  Doctors often viewed MRSA to not be as important as other respiratory-tract infections. With our study findings, treatment patterns may changes as the risk of death is 1.3 times greater for CF patients with MRSA.”

NY Times :: ID expert, Dr Louis Rice, discusses Rising Threat of Infections Unfazed by Antibiotics

February 28, 2010

A minor-league pitcher in his younger days, Richard Armbruster kept playing baseball recreationally into his 70s, until his right hip started bothering him. Last February he went to a St. Louis hospital for what was to be a routine hip replacement.

By late March, Mr. Armbruster, then 78, was dead. After a series of postsurgical complications, the final blow was a bloodstream infection that sent him into shock and resisted treatment with antibiotics.

“Never in my wildest dreams did I think my dad would walk in for a hip replacement and be dead two months later,” said Amy Fix, one of his daughters.

Not until the day Mr. Armbruster died did a laboratory culture identify the organism that had infected him: Acinetobacter baumannii.

The germ is one of a category of bacteria that by some estimates are already killing tens of thousands of hospital patients each year. While the organisms do not receive as much attention as the one known as MRSA — for methicillin-resistant Staphylococcus aureus — some infectious-disease specialists say they could emerge as a bigger threat.

That is because there are several drugs, including some approved in the last few years, that can treat MRSA. But for a combination of business reasons and scientific challenges, the pharmaceuticals industry is pursuing very few drugs for Acinetobacter and other organisms of its type, known as Gram-negative bacteria. Meanwhile, the germs are evolving and becoming ever more immune to existing antibiotics.

In many respects it’s far worse than MRSA,” said Dr. Louis B. Rice, an infectious-disease specialist at the Louis Stokes Cleveland V.A. Medical Center and at Case Western Reserve University. “There are strains out there, and they are becoming more and more common, that are resistant to virtually every antibiotic we have.”

Read more at CWRUmedicine.org