Navigation Links
'Selective strategy' recommended for CT scans in emergency departments
Date:1/18/2011

CINCINNATI--Emergency medicine researchers with the University of Cincinnati (UC) are advocating a new strategy for diagnosing a common but dangerous condition in the emergency room.

Pulmonary embolism, or PE, is a potentially lethal disease in which a blood clot, usually from the legs, travels to the lungs and becomes lodged in a pulmonary artery. But the most common way of testing for PEs, a computed tomography angiography (CTA), comes with so many side effects that researchers in emergency medicine are now looking for ways to reduce use of the test.

In a CTA, a contrast dye is first injected into a vein. As the dye circulates through the body, a CT scan is used to take detailed images of the vessels.

"The use of CTA for blood clots has increased 235 percent between 1991 and 2002," says Michael Ward, MD, UC emergency medicine operations research fellow. "However, recent literature has shown there are significant risks associated with CTA, including radiation, severe allergic reaction and kidney failure from the contrast dye.

"As more risks are discovered, the development of diagnostic strategies to reduce the use of CTA has become extremely important."

In a study done June 2010, Ward used existing data to predict costs and results for two models of PE diagnosis. One model tests all patients for PE using a CTA. Another uses compression ultrasound to first test for deep vein thrombosis (DVT), the formation of a blood clot in the leg.

"The diagnosis of a DVT, together with symptoms of PE, almost certainly suggests a PE," says Ward. "If the test for DVT was positive, the patient was admitted to the hospital for PE and started treatment with anticoagulants. If the test was negative, patients had a CTA performed to evaluate for PE."

In the study, researchers used a computer decision model to evaluate a typical patient being evaluated in the ED with signs and symptoms of a PE. Using the model, Ward and his colleagues were able to test different scenarios to see how each strategy held up.

The model showed that the selective CT strategy resulted in both a life expectancy increase for patients and a cost savings for hospitals. Ward's analysis is published in the January issue of Academic Emergency Medicine.

"Our work suggests that a PE diagnostic strategy that uses compression ultrasound followed by selective CTA is not only cost-effective, but may be a way to reduce the incidence of adverse affects associated with the CTA," says Ward.

Ward says that an ultrasound strategy has been used in the ED before, but only as a rule-out strategy, rather than the rule-in approach tested in this study. With almost half the CTAs in the U.S. in 2006 performed in the emergency room, he says a reduction of unnecessary CTA imaging in a cost-effective manner can have a strong impact for both patients and health care providers.


'/>"/>

Contact: Katy Cosse
kathryn.cosse@uc.edu
513-558-0207
University of Cincinnati Academic Health Center
Source:Eurekalert

Related medicine news :

1. Selective inhibition of BMK1 suppresses tumor growth
2. With proper planning, selective rather than mass vaccination can provide immunity against flu
3. Governor Rendell Proposes Budget With No Tax Increase, More Money for Public Schools, Strategy for Jobs, Plan to Address Future Deficits
4. SOKO Fitness & Spa Group Broadens Geographic Expansion Strategy
5. Keenan Chief Strategy Officer Selected to Join Editorial Board of Payers & Providers
6. Data Strategy Announces SurePath Services Offering for EMC Avamar
7. New strategy produces promising advance in cancer vaccines
8. New Cancer-Fighting Strategy Focuses On Signaling Molecules
9. Targeting leukemia cells gene addiction presents new strategy for treatment
10. Novel Parkinson's Treatment Strategy Involves Cell Transplantation
11. A new strategy normalizes blood sugars in diabetes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... QUEENS, N.Y (PRWEB) , ... October 13, 2017 , ... ... recently became a member of ElderCounsel, a national organization of elder law and special ... constantly changing laws and rules. It also provides a forum to network with elder ...
(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... The Visiting ... Day Market. Featuring a collection of specialty vendors and unique items from across the ... and quality-focused health and wellness services offered by the VNA. The boutique will ...
(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... Yisrayl Hawkins, ... week that explains one of the most popular and least understood books in the ... cryptic and puzzling descriptions that have baffled scholars for centuries. Many have tossed it ...
(Date:10/13/2017)... ... ... “The Journey: From the Mountains to the Mission Field”: the story of a missionary ... Journey: From the Mountains to the Mission Field” is the creation of published author, ... ages and currently teaches a class of ladies at her church, which she has ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... treating sleep apnea using cutting-edge Oventus O2Vent technology. As many as ... disorder characterized by frequent cessation in breathing. Oral appliances can offer significant relief ...
Breaking Medicine News(10 mins):
(Date:9/27/2017)... for their devotion to personalized service, SMP Pharmacy Solutions announces ... the South Florida Business Journal,s 50 Fastest-Growing Companies, and listed ... national specialty pharmacy has found its niche.  To that end, ... honored by SFBJ as the 2017 Power Leader in Health ... his award in October, Bardisa said of the three achievements, ...
(Date:9/25/2017)... 2017   Montrium , an industry leader ... the IQPC Trial Master Files & Inspection Readiness ... EastHORN Clinical Services has selected eTMF Connect ... management. EastHORN, a leading European contract research organization ... transparency to enable greater collaboration with sponsors, improve ...
(Date:9/23/2017)... , Sept. 22, 2017 Janssen Biotech, Inc. ... response letter from the U.S. Food and Drug Administration ... of sirukumab for the treatment of moderately to severely ... additional clinical data are needed to further evaluate the ... severely active RA. ...
Breaking Medicine Technology: