Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Simple lab-based change may help reduce unnecessary antibiotic therapy, improve care

27.02.2014

Modifying how urine culture results are reported to clinicians can improve prescribing practices, pilot study suggests

 A simple change in how the hospital laboratory reports test results may help improve antibiotic prescribing practices and patient safety, according to a pilot, proof-of-concept study published in Clinical Infectious Diseases and now available online. No longer routinely reporting positive urine culture results for inpatients at low risk for urinary tract infections (UTIs) greatly reduced unnecessary antibiotic prescriptions and did not affect the treatment of patients who did need antibiotics, the study authors found.

Urine cultures for hospitalized patients are often ordered unnecessarily. Positive culture results from patients without any UTI symptoms can lead to antibiotic prescriptions that are of no benefit and may cause harm to patients, including C. difficile infection and subsequent infection with more antibiotic-resistant bacteria.

In the study, conducted in 2013 at Mount Sinai Hospital in Toronto, urine culture results from non-catheterized inpatients—those at lower risk for developing a UTI—were no longer reported automatically to the ordering physician. Instead, a message was posted to the patient's electronic medical record asking caregivers to call the lab for the results only if a UTI was strongly suspected.

The message reminded providers that "the majority of positive urine cultures from inpatients without an indwelling urinary catheter represent asymptomatic bacteriuria," a condition for which current practice guidelines do not usually recommend antibiotics, unless the patient is pregnant or will be undergoing certain urological procedures.

After the change in how the culture results were reported, the rate of antibiotic treatment for asymptomatic bacteriuria among non-catheterized patients decreased from 48 percent to 12 percent. Treatment rates among patients in the catheterized control group—whose culture results were routinely reported as before—remained steady, at 41 percent. Patients with positive culture results were assessed by a study investigator for UTI symptoms within 24 hours. Four UTIs developed among the non-catheterized patients; in all of these cases, clinicians had already started appropriate antibiotic treatment when the urine cultures were ordered, based on the patients' symptoms.

"In clinical medicine, there are many examples of tests that are not routinely processed or reported when they have been shown to be of very low yield or associated with potential harms, and special requests are required in these cases," said lead study author Jerome A. Leis, MD, MSc, of Sunnybrook Health Sciences Centre in Toronto. "We believe this to be true of some urine cultures from medical and surgical floors where we know that the majority of positive results occur in patients without symptoms of urinary tract infection and lead to unnecessary and potentially harmful therapy with antibiotics."

The study authors stressed the need for larger studies to confirm the overall generalizability, safety, and sustainability of such a change in urine culture reporting before it is implemented more broadly and in other practice settings.

Fast Facts:

1) Positive urine culture results for hospitalized patients at low risk for developing a urinary tract infection (UTI) can lead clinicians to prescribe unnecessary and sometimes harmful antibiotic therapy. Most positive urine cultures from inpatients who do not have a urinary catheter represent asymptomatic infections that do not require antibiotics.

2) In a pilot, proof-of-concept study, no longer routinely reporting positive urine culture results for inpatients at low risk for UTIs greatly reduced unnecessary antibiotic prescriptions and did not affect the treatment of patients who did need antibiotics.

3) Larger studies are needed to confirm the generalizability, safety, and sustainability of such an approach before it is implemented more broadly and in other practice settings.

Jerica Pitts | EurekAlert!
Further information:
http://www.pcipr.com

Further reports about: Infectious UTI antibiotic antibiotics catheter symptoms therapy urine

More articles from Health and Medicine:

nachricht Improving memory with magnets
28.03.2017 | McGill University

nachricht Graphene-based neural probes probe brain activity in high resolution
28.03.2017 | Graphene Flagship

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: A Challenging European Research Project to Develop New Tiny Microscopes

The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.

To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Transport of molecular motors into cilia

28.03.2017 | Life Sciences

A novel hybrid UAV that may change the way people operate drones

28.03.2017 | Information Technology

NASA spacecraft investigate clues in radiation belts

28.03.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>