When a patient's condition deteriorates, clinicians must make complex decisions while managing an overwhelming flow of information. Electronic health records can help, although constant notifications risk becoming another distraction.

Three studies from Michigan Medicine suggest that carefully timed digital alerts can guide treatment for critically ill cardiac patients.

Published in Heart & Lung, Journal of Cardiac Failure – Intersections and JACC: Case Reports, the research examined how electronic prompts influenced decisions in emergency departments and intensive care units.

Helping Doctors Treat Heart Failure

The first study investigated acute decompensated heart failure, a condition in which worsening heart function allows fluid to accumulate, often causing severe breathlessness.

Intravenous diuretics help the body remove excess fluid. For patients already taking these medicines at home, guidelines recommend an initial intravenous dose at least twice their usual at-home dose, expressed in equivalent dosing terms. Choosing the right amount requires clinicians to review medication histories quickly.

Researchers introduced an alert that appeared when records indicated fluid overload or impaired kidney function. It was triggered during 223 emergency department encounters, and clinicians followed the suggested diuretic dose in nearly three-quarters of cases.

Crucially, the notification did not appear to slow treatment. The median interval between arrival and diuretic administration remained approximately two hours in both comparison groups.

Clinical pharmacy specialist Sarah Adie explained that the study demonstrated how alerts could influence prescribing decisions, although researchers had not established whether they improved fluid removal or shortened hospital stays.

Reducing Deep Sedation

A second study focused on more than 1,600 patients receiving mechanical ventilation in cardiac and medical intensive care units.

Sedation helps patients tolerate breathing tubes and intensive treatment, but excessive depth or duration can be associated with complications. Clinical guidelines therefore favour lighter sedation when medically appropriate.

The researchers added electronic prompts encouraging staff to reassess sedation levels. Following implementation, the average time spent deeply sedated during the first 48 hours after intubation fell from 16.8 hours to 12.4 hours in the cardiac intensive care unit.

When alerts appeared, nurses reduced continuous sedative infusions in 23% of cases. The medicines involved included fentanyl, propofol, midazolam and dexmedetomidine.

Pulmonologist Anna Barker emphasised that the reminders were designed to support clinicians with evidence-based information during demanding situations, while leaving individual treatment decisions in professional hands.

Spotting A Dangerous Hidden Condition

The third study addressed normotensive cardiogenic shock, a potentially life-threatening condition in which the heart fails to supply organs with enough blood despite blood pressure remaining within a seemingly normal range.

Because shock is commonly associated with low blood pressure, these patients can be difficult to identify promptly.

The digital system flagged additional physiological warning signs and encouraged contact with a specialist cardiac shock team. Clinicians interacted with the alerts in 14% of cases. Those encounters were associated with more cardiac intensive care consultations within 12 hours.

This association does not prove that the alert itself caused the increase or that patients subsequently recovered more quickly.

What The Findings Mean

Together, the studies show that targeted reminders can change clinical behaviour, from medication dosing to sedation management and specialist referrals.

Yet important questions remain. The investigations did not demonstrate reductions in deaths, complications or hospital stays, and excessive alerts could contribute to notification fatigue.

University of Michigan cardiologist Scott Ketcham explained that the next priority was testing these interventions across multiple healthcare systems to establish whether changes in clinical decisions translate into better patient outcomes.

For hospitals, the promise lies in carefully designed tools that deliver relevant information precisely when medical teams need it.