海角论坛

iSchool alum, professor team up on 'a better mousetrap' for patient records

Ari Pollack
Ari Pollack

As a practicing physician, Ari Pollack wants to spend less time searching for information and more time focusing on his patients鈥 needs. And he鈥檚 not alone; data show that Electronic Health Records, or EHRs, are a constant source of frustration to physicians.

鈥淚 always thought there was a better mousetrap to build,鈥 Pollack said.

The Information School Master of Science in Information Management alumnus is working on one. He and iSchool Professor Wanda Pratt teamed up on a study of some alternative ways to present data to physicians using visualizations. The prestigious Journal of the American Medical Association .

In the study, Pollack and Pratt showed data to doctors at using three visualization techniques and then tested the effect of each technique on their cognitive load 鈥 the mental burden they experienced studying patient records. Where traditional EHRs would require a physician to search through a patient鈥檚 record and remember key points, the visualizations highlighted lab tests and other results that would be most likely to worry doctors.

鈥淪o now we鈥檝e switched the burden of information seeking from the physicians to the computer,鈥 Pollack said. 鈥淭he computer finds those elements and prioritizes them for physicians, so physicians can use their time to think about what it means instead of searching for them in the first place.鈥

In the study, doctors embraced a tool that was radically different from what they were used to working with, Pollack said. An empirical test of their cognitive load showed that it improved their ability to make decisions.

鈥淒espite a dramatic difference and a significant way of reorganizing information, clinicians still liked it the best, and it still supported their decision-making better than any other tools,鈥 Pollack said.

"I decided to go to the iSchool because it was an opportunity to see how people outside of health care solve big information problems."

To avoid any issues with patient privacy, Pollack and Pratt used synthetic data. Pollack crafted the data to present a similar level of complexity in each of three data visualization dashboards. The researchers presented the visualizations to 29 physicians at the , which funded the study. One of the visualizations, which highlighted how the patient鈥檚 condition had changed over time, was the clear preference of most of the study participants. While this study didn鈥檛 compare how the visualizations performed compared with existing EHRs, anecdotal results were encouraging, the researchers said.

鈥淭heir comments were pretty dramatically positive,鈥 Pratt said.

While Pollack offers a physician鈥檚 perspective, much of Pratt鈥檚 research focuses on the needs of patients. She researches information challenges facing patients and designs technology to improve their health outcomes. She鈥檚 hopeful that these visualization tools could be helpful to patients in multiple ways 鈥 not only by improving their care, but by communicating it better.

Wanda Pratt
Wanda Pratt

鈥淚鈥檓 more interested in how this affects patient care,鈥 she said. 鈥淐an patients see some information along these lines? Can they understand their own health situation and how things are changing?鈥

Pratt leads the iSchool鈥檚 iMed research group and counts Pollack as a valuable research partner. As a physician who specializes in treating children with kidney ailments at Seattle Children鈥檚, Pollack brings a clinical perspective to the group鈥檚 research and credibility with key partners when undertaking a study such as this one.

鈥淚t鈥檚 a lot easier for me to get physician involvement in our studies as a peer than for someone who鈥檚 not a peer or a colleague,鈥 Pollack said. 鈥淛ust me being a member of the club makes it a lot easier for us to get that physician opinion and perspective that is so important.鈥

Pollack also knows that his colleagues would welcome a better alternative to the existing EHRs. A study linked poor EHR usability to a high rate of job frustration and burnout among physicians.

Early in his medical career, Pollack developed an interest in building better technology. That鈥檚 what brought him to the iSchool to pursue an 海角论坛 degree, which he completed in 2014.

鈥淚 decided to go to the iSchool because it was an opportunity to see how people outside of health care solve big information problems,鈥 he said.

As for this information problem, there鈥檚 plenty more work to do. Pollack and Pratt are working on follow-up papers that show how the visualizations compare to standard EHRs. The next step is to develop algorithms that will accurately reflect patients鈥 conditions on the data visualizations. While it鈥檚 just a start, it鈥檚 a promising one for physicians like Pollack.

鈥淚 feel like these tools generally make us work too hard and put up too many barriers to good patient care and it really needs to change,鈥 he said.

Screen shot of data visualization approach to patient records.
Physicians in the study preferred this style of data visualization, which highlights change in a patient's condition. A patient exhibiting abnormal, rapid changes is illustrated by the larger circle at upper right. The data shown are synthetic. (Image courtesy of Ari Pollack)