Navigation Links
Multiple patient samples of an analyte improve detection of changes in clinical status

(Boston) - Clinicians rely on laboratory tests to monitor the progression or remission of disease, or to identify pathologic alterations in physiology that may precede clinical events. Monitoring quantitative laboratory results represents a crucial component in the assessment of response to therapy. Researchers at Boston University School of Medicine (BUSM) have developed a mathematical methodology to reduce the effect of biologic variation on the difference necessary to detect changes in clinical status. The findings, which appear in the January issue of Archives of Pathology & Laboratory Medicine, may lead to better patient predictions at a lower cost.

When comparing results over time, biologic variation must be statistically incorporated into the evaluation of laboratory results to identify a physiologic change. Traditional methods compare the difference in two values with the standard deviation (SD) of the biologic variation to indicate whether a ''true'' physiologic change has occurred.

Using a mathematical model, the BUSM researchers evaluated multiple paired sets of patient data, rather than a single pair, and found a substantial decrease in the difference between values necessary to achieve a given confidence interval, thereby improving the sensitivity of the evaluation.

"Our results show that we can obtain better predictions with what will happen with a patient, such as return to the hospital because of heart failure for example, at a lower cost," said study author Martin Kroll, MD, a professor of pathology and laboratory medicine at BUSM. "The study shows that the practice of using multiple patient samples results in enhanced power to detect true changes in patient physiology," he added.

According to the researcher this approach has the potential to contribute to the personalization of health care delivery by redefining common thresholds in clinical patient management. "The decision to treat a patient with a more aggressive therapeutic regimen may be reconsidered when a test can show that a small but highly statistically significant change has taken place," explained Kroll. "Such a result may lead to the postponement of switching to a new therapeutic regimen until the next testing time, where the initial small but significant change in test values has grown to be both statistically and clinically relevant." Thus, a small difference in results may herald a true physiologic transition, a message that might easily be overlooked with older techniques.

The researcher believes testing multiple samples has the potential to fundamentally alter the way in which laboratory medicine is practiced. Greater research into the feasibility and cost of multiple testing paradigms in the clinical setting is recommended.


Contact: Gina DiGravio
Boston University Medical Center

Related medicine news :

1. Top Stars Rally for Fighting Blindness, Sending Their Message out to 160 Million Homes on Multiple Cable Networks, December 25th, Preceded by President George Herbert Walker Bush Describing the Frank Capra Classic, Its A Wonderful Life for the Bl
2. Physical Therapist, Money Launderer and Patient Recruiter Plead Guilty in Connection With Multiple Detroit Health Care Fraud Schemes
3. Drug shows positive responses, low side-effects in multiple myeloma
4. Carfilzomib Safety Data From Ongoing Phase 2b Pivotal Trial in Relapsed and Refractory Multiple Myeloma Show Promising Safety and Tolerability
5. Multiple myeloma patients experience high response rate with new 3-drug combination
6. Timing of Multiple-Ligament Knee Surgery May Not Matter
7. Childbirth May Slow Progression of Multiple Sclerosis
8. Multiple Health Conditions Discovered During Free Clinic for Uninsured People in New Orleans
9. Patient Advocate Foundation Announces Additional Support for Co-Pay Relief Program Serving Multiple Myeloma Patients
10. Dallas Bariatric Surgeon Offers Multiple Options for Patients Considering Weight Loss Surgery in a Rough Economy
11. Catheter-Delivered Valve May Help People With Heart Defects Avoid Multiple Surgeries
Post Your Comments:
(Date:10/12/2015)... Angeles, CA (PRWEB) , ... October 12, 2015 ... ... on August 19, 2015, high school aged female athletes, particularly in ... developing potentially sidelining repetitive motion and mechanical overuse injuries than male peers in ...
(Date:10/12/2015)... ... 2015 , ... According to an article published September 27th by ... way to save money on the healthcare needs of patients across the country. Especially ... call visits can often effectively eliminate the need to go in and out of ...
(Date:10/12/2015)... ... October 12, 2015 , ... According to an article ... of San Antonio, Texas recommended that any high-rises in the city limits that do ... going forward. The article explains that it wasn’t until 1982 that the city started ...
(Date:10/12/2015)... ... 12, 2015 , ... The Horizon Foundation for New Jersey has awarded $846,600 ... and enhancing the quality of life in the Garden State. The grants, representing the ... , The charitable arm of Horizon Blue Cross Blue Shield of New Jersey, ...
(Date:10/12/2015)... ... October 12, 2015 , ... AcousticSheep LLC, creators of ... in honor of Breast Cancer Awareness Month. During the month of October, ... a SleepPhones® Classic product to a breast cancer patient at the Cleveland Clinic. ...
Breaking Medicine News(10 mins):
(Date:10/12/2015)... CINCINNATI , Oct. 12, 2015 A ... hearing impaired children can predict whether they will develop ... surgery, according to a study in the journal ... --> In the journal,s Oct. 12 ... say their computer program determines how specific regions of ...
(Date:10/12/2015)... Oct. 12, 2015 CorVascular Diagnostics, ... medical technology company that designs and distributes ... it has entered into a collaboration and ... dedicated to producing devices, software and services ... PAD-IQ®, developed and produced by Vasamed, provides ...
(Date:10/12/2015)... PUNE, India , October 12, 2015 /PRNewswire/ ... The Plague - Pipeline Review, H2 2015 ... helps strengthen plague R&D pipelines by identifying new ... products. . --> ... report on Plague pipeline spread across 62 pages, ...
Breaking Medicine Technology: