(Pictured left to right)) Richmond Hospital’s Dr. Richard Chan, Emergency Department clinical department head, Rich Dillon, director, Clinical Planning Richmond Hospital Redevelopment, Patient Flow and Care Transitions, and Jane de Lemos, clinical pharmacy specialist, are investigating preventable adverse drug events that result in hospital admissions.

Richmond dives deep to find root causes of ADEs

Prevention is the best medicine, especially when considering that up to 70 per cent of all adverse drug events (ADEs) that land people in hospitals are potentially preventable.

ADEs are unwanted and unintended medical events related to the use of medications. Vancouver Coastal Health Research Institute (VCHRI) scientist and Richmond Hospital clinical pharmacy specialist Jane de Lemos helps diagnose and resolve ADEs. She is embarking on a project to study why these events happen and how patients, physicians, and pharmacists can better prevent them.

“We don’t know the true root causes of what the prescriber, patient, or family may be doing or not doing that could cause an ADE,” said de Lemos, who works in Richmond Hospital’s emergency department. “Day in and day out, I see patients with these complications from medications and there’s no feedback mechanism globally to the community of prescribers or to patients and families.”

Prevention is key

De Lemos recently received a VCHRI Innovation and Translational Research Award to investigate and identify root causes of ADEs that are deemed preventable. She and her research team, comprising a research nurse, a pharmacist, four physicians at Richmond Hospital and two Richmond family doctors, hope to create a system to routinely capture ADEs, and to report, monitor, and mitigate preventable ADE-related causes of admission.

“Part of the problem is not all hospitals have a system to capture how many people are coming in because of an ADE that could have been prevented,” she added. “Many don’t record that information on an ongoing basis.”

For a six-month period the researchers will be reviewing patient case summaries to confirm ADE incidents, whether or not the events were preventable, and their severity.

All events will be tracked

For the duration of the study, Richmond Hospital’s physicians and pharmacists have been asked to diligently report such events to the research team so they can conduct in-depth interviews with ADE patients to uncover the most common root causes of ADEs. The research team will also conduct telephone interviews with the prescriber and community pharmacist.

For example, de Lemos described that when many individuals with diabetes get sick, they experience ADEs because they continue to take their insulin or blood sugar-lowering medications throughout a phase of sickness in which they may naturally eat less. Because they aren’t eating as much but are still taking their medication, their blood sugar levels may plunge to dangerously low levels.

“And when we ask our diabetes patients, they may have never been told that when they’re sick they need to halve their diabetic medication or they forget to adjust their insulin dose and watch their sugar levels more closely,” explained de Lemos. “So, sick-day management could be one of those root causes we could learn from.”

Higher quality care

The researchers hope to uncover the root causes for the top three or four types of ADEs found and will be working with content developers to create key messaging and materials to send to prescribers and patients.

“Our hope is that by understanding the root causes of these preventable ADEs, we can take the appropriate steps to mitigate them in the future,” added de Lemos.