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Clinical Laboratories and Pathology Groups

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Clinical Laboratories and Pathology Groups

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Florida Hospital Utilizes Machine Learning Artificial Intelligence Platform to Reduce Clinical Variation in Its Healthcare, with Implications for Medical Laboratories

Pathologists and clinical laboratory scientists may find one hospital’s use of a machine-learning platform to help improve utilization of lab tests both an opportunity and a threat

Variation in how individual physicians order, interpret, and act upon clinical laboratory test results is regularly shown by studies in peer-reviewed medical journals to be one reason why some patients get great outcomes and other patients get less-than-desirable outcomes. That is why many healthcare providers are initiating efforts to improve how physicians utilize clinical laboratory tests and other diagnostic procedures.

At Flagler Hospital, a 335-bed not-for-profit healthcare facility in St. Augustine, Fla., a new tool is being used to address variability in clinical care. It is a machine learning platform called Symphony AyasdiAI for Clinical Variation Management (AyasdiAI) from Silicon Valley-based SymphonyAI Group. Flagler is using this system to develop its own clinical order set built from clinical data contained within the hospital’s electronic health record (EHR) and financial systems.

This effort came about after clinical and administrative leadership at Flagler Hospital realized that only about one-third of its physicians regularly followed certain medical decision-making guidelines or clinical order sets. Armed with these insights, staff members decided to find a solution that reduced or removed variability from their healthcare delivery.

Reducing Variability Improves Care, Lowers Cost

Variability in physician care has been linked to increased healthcare costs and lower quality outcomes, as studies published in JAMA and JAMA Internal Medicine indicate. Such results do not bode well for healthcare providers in today’s value-based reimbursement system, which rewards increased performance and lowered costs.

“Fundamentally, what these technologies do is help us recognize important patterns in the data,” Douglas Fridsma, PhD, an expert in health informatics, standards, interoperability, and health IT strategy, and CEO of the American Medical Informatics Association (AMIA), told Modern Healthcare.

Clinical order sets are designed to be used as part of clinical decision support systems (CDSS) installed by hospitals for physicians to standardize care and support sound clinical decision making and patient safety.

However, when doctors don’t adhere to those pre-defined standards, the results can be disadvantageous, ranging from unnecessary services and tests being performed to preventable complications for patients, which may increase treatment costs.

“Over the past few decades we’ve come to realize clinical variation plays an important part in the overuse of medical care and the waste that occurs in healthcare, making it more expensive than it should be,” Michael Sanders, MD (above) Flagler’s Chief Medical Information Officer, told Modern Healthcare. “Every time we’re adding something that adds cost, we have to make sure that we’re adding value.” (Photo copyright: Modern Healthcare.)

Flagler’s AI project involved uploading clinical, demographic, billing, and surgical information to the AyasdiAI platform, which then employed machine learning to analyze the data and identify trends. Flagler’s physicians are now provided with a fuller picture of their patients’ conditions, which helps identify patients at highest risk, ensuring timely interventions that produce positive outcomes and lower costs.

How Symphony AyasdiAI Works

The AyasdiAI application utilizes a category of mathematics called topological data analysis (TDA) to cluster similar patients together and locate parallels between those groups. “We then have the AI tools generate a carepath from this group, showing all events which should occur in the emergency department, at admission, and throughout the hospital stay,” Sanders told Healthcare IT News. “These events include all medications, diagnostic tests, vital signs, IVs, procedures and meals, and the ideal timing for the occurrence of each so as to replicate the results of this group.”

Caregivers then examine the data to determine the optimal plan of care for each patient. Cost savings are figured into the overall equation when choosing a treatment plan. 

Flagler first used the AI program to examine trends among their pneumonia patients. They determined that nebulizer treatments should be started as soon as possible with pneumonia patients who also have chronic obstructive pulmonary disease (COPD).

“Once we have the data loaded, we use [an] unsupervised learning AI algorithm to generate treatment groups,” Sanders told Healthcare IT News. “In the case of our pneumonia patient data, Ayasdi produced nine treatments groups. Each group was treated similarly, and statistics were given to us to understand that group and how it differed from the other groups.”

Armed with this information, the hospital achieved an 80% greater physician adherence to order sets for pneumonia patients. This resulted in a savings of $1,350 per patient and reduced the readmission rates for pneumonia patients from 2.9% to 0.4%, reported Modern Healthcare.

The development of a machine-learning platform designed to reduce variation in care (by helping physicians become more consistent at following accepted clinical care guidelines) can be considered a warning shot across the bow of the pathology profession.

This is a system that has the potential to become interposed between the pathologist in the medical laboratory and the physicians who refer specimens to the lab. Were that to happen, the deep experience and knowledge that have long made pathologists the “doctor’s doctor” will be bypassed. Physicians will stop making that first call to their pathologists, clinical chemists, and laboratory scientists to discuss a patient’s condition and consult on which test to order, how to interpret the results, and get guidance on selecting therapies and monitoring the patient’s progress.

Instead, a “smart software solution” will be inserted into the clinical workflow of physicians. This solution will automatically guide the physician to follow the established care protocol. In turn, this will give the medical laboratory the simple role of accepting a lab test order, performing the analysis, and reporting the results.

If this were true, then it could be argued that a laboratory test is a commodity and hospitals, physicians, and payers would argue that they should buy these commodity lab tests at the cheapest price.

—JP Schlingman

Related Information:

Flagler Hospital Combines AI, Physician Committee to Minimize Clinical Variation

Flagler Hospital Uses AI to Create Clinical Pathways That Enhance Care and Slash Costs

Case Study: Flagler Hospital, How One of America’s Oldest Cities Became Home to One of America’s Most Innovative Hospitals

How Using Artificial Intelligence Enabled Flagler Hospital to Reduce Clinical Variation

Florida Hospital to Save $20M Through AI-enabled Clinical Variation

The Journey from Volume to Value-Based Care Starts Here

The Science of Clinical Carepaths

Doctors Get Electronic Help with Their Diagnoses Via Decision Support Software

Misdiagnosis by doctors leads to many of the cases that we hear about in the news (or on the TV show “House.”). We live in an age where doctors are under pressure to see as many patients in as little time as possible. Not surprising, then, that many physicians often diagnose the most obvious medical condition they deem appropriate without full and detailed consideration of what alternative medical conditions may also be present.

Kaiser Permanente and the Veterans Health Administration are bringing the issue of misdiagnosis to the forefront with their adoption of a Web-based “decision support” software program called “Isabel.” Isabel and similar systems help doctors by offering an array of possible diagnoses they might not have considered or prompting them to perform appropriate tests on patients with certain symptoms. In a study at the VA Medical Center in Northport, NY, Isabel suggested the correct diagnosis in 98% of cases in which the system was used. Doctors have recognized that this system is an excellent training tool for residents and an invaluable reminder that the simplest explanation is not always the right one when it comes to medical conditions.

I spoke to a friend of mine who is a general practice doctor at the Scott & White Clinic in Georgetown, TX. The facility was on the verge of adopting a decision support program that involved PDAs programmed to suggest an appropriate diagnosis based on symptoms in each general practice exam room. “At what point,” she asked, “am I even necessary anymore? I’m starting to question why I even needed to go to medical school – Anyone could use this thing and come up with the right diagnosis!” Unfortunately, my friend’s attitude will likely be mirrored by many doctors who are set in their ways and unfamiliar with this technology. It’s true that, in a large portion of medical cases, the right answer is a simple one, but decision support programs assist doctors who use them correctly to consider alternative conditions, which may save a patient’s life.

Dark Daily predicts that use of clinical decision support systems like Isabel will increase in coming years. It is a logical consequence of the patient safety movement as well as the motivations provided by pay-for-performance programs. Another reason why health care facilities are likely to embrace these systems is that they can electronically document that the physician did the right thing for the patient, based on the fact that the clinical decision support system agreed with the physicians’ evaluation of symptoms and likely medical conditions.

What remains to be seen is how such clinical decision support systems impact laboratory test ordering patterns and how clinicians follow up on laboratory test results. Clinical laboratory managers and pathologists in health systems and hospitals already using such systems report that overall test utilization declines in the weeks following implementation. Going forward, they say that physicians begin to increase their consultations with pathologists and technical lab staff. So the early evidence is that clinical decision support systems can encourage physicians to make better use of the clinical laboratory’s expertise.

Related Articles:

Preventing the tragedy of misdiagnosis

Why Doctors So Often Get It Wrong

More on Clinical decision support systems (CDSSs)

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