Early-warning models score patients at risk of sepsis. The problem is that 70–80% of alerts are ignored because clinicians receive a number with no context: they do not know which signals are driving risk, how fast it is evolving, or how much time they have to act. The result is alert fatigue — and in sepsis, every hour of delayed intervention increases mortality by 7%. AyGLOO adds an agentic layer on top of that model: the agent evaluates alert reliability for that specific patient and acts differently depending on the detected pattern. When deterioration is clear and reliability is total, it activates a critical alert with the protocol already prepared and auto-escalates if there is no response within the defined time. When the signal is ambiguous, it intensifies monitoring without consuming clinical capacity. The clinician always validates and executes: the agent removes all work before that decision.
1
The agent triggers a critical alert with a calibrated protocol when reliability is total — and auto-escalates if there is no response within the defined time. The clinician does not receive a number: they receive a pre-structured decision ready to validate.→ Alert response rate: from 20–30% to 80%+ when the alert includes context
2
ISA turns abstract probability into a concrete clinical reference: of the last 8 patients with this profile, 6 went into shock when intervention was delayed more than 2 hours.→ 30-day mortality: 34% without intervention in <2h for this segment
3
The agent has three operating modes — critical alert, intensive monitoring, active surveillance — depending on the deterioration pattern. It does not consume clinical capacity when the signal is weak, nor under-alert when risk is high.→ Escalated false positives reduced without losing sensitivity on critical signals
4
Simulations quantify the impact of each intervention before acting and the plan B if the first does not work — the clinician decides in seconds under pressure, not from scratch.→ Time to antibiotics: −45 min on average when the protocol arrives pre-structured
Today: what the clinician receives
With AyGLOO. Same alert, fully enriched
XAI · Twin Alert rules with dominant signals
ISA Clinical segment context
CF · What-if Intervention & follow-up simulations
Impact Clinical & economic impact by action
Action Agent decision
PDF Clinical traceability
1. Alert rules with dominant signals. Twin model (depth 7 · fidelity 95.9%)
100%IF lactate > 2.5 AND upward_trend_4h = true AND days_since_surgery ≤ 3 → Imminent sepsis: act within <90 minutes. Lactate 1.4 → 2.1 → 3.1 mmol/L in 4h (importance: 0.38), HR >100 bpm sustained 3h (0.29), WBC decreasing (0.22). The agent triggers a critical alert. The clinician validates and executes.
82%IF HR_100bpm_sustained_3h = true AND MAP < 70 AND WBC_downward_trend = true → Active haemodynamic deterioration. The agent triggers intensive monitoring with a lower re-alert threshold.
61%IF lactate > 2.0 with no other factors → Weak signal in isolation. The agent keeps active surveillance and re-evaluates in 2h without escalating.
Lactate trend is the dominant signal: a progressive rise in 4h in a day-2 post-op patient is the pattern most consistent with early sepsis. It is not an isolated high value; it is a direction. The agent responds differently depending on the pattern — not all alerts are equal.
XAITwin
2. Clinical segment context (ISA)
High-risk micro-segment: abdominal surgery, age >65, lactate >2.5 mmol/L · 30-day mortality if no action in <2h: 34% · 8 similar profiles in the last 18 months: 6 developed septic shock when intervention was delayed more than 2h · High reliability: act with confidence.
ISA is the agent’s double-check before triggering a critical alert: it confirms the model performs well in this specific segment. If the light were amber — unstable pattern or high false-positive rate for this profile — the agent would not trigger a critical alert even if the score is high. It would trigger intensive monitoring and route the clinician with full context.
ISA
3. Simulations. Impact of each intervention and follow-up by response
IV fluids (30 mL/kg) in 30 min: if lactate responds (↓ ≥10%), risk drops 0.89 → 0.52 · Blood cultures + antibiotics within 60 min: reduces 30-day mortality by 28% in this segment · If lactate does not decrease after fluids: risk remains 0.89 — escalate to vasopressors immediately, plan B already prepared · If HR drops below 100 bpm in 2h: risk drops to 0.61 · Lactate response to fluids is the most determinant follow-up signal
Simulations do two things: CF quantifies the impact of each intervention before acting, including plan B if lactate does not respond. What-if guides real-time follow-up during the first hours — the clinician knows exactly which signal to watch and what threshold triggers the next action.
CFWhat-if
4. Clinical impact by time-to-intervention
Act within <90 min ✓
6–9%
antibiotics + fluids in window
3–5 days
resolved without shock
Delay 2–4h
18–24%
+7% mortality per hour
8–12 days
septic shock risk
No intervention
34%
abdominal surgery profile >65
>14 days or death
shock in 6/8 similar cases
→ Each hour of delay: +7% mortality · €3,000–€5,000 additional ICU cost per day · The 90-min window is the KPI managed by the agent
Unlike other sectors, here economic impact is a consequence of clinical impact, not the other way around. The table does not optimise cost: it optimises time-to-intervention, the KPI that determines outcome. ICU cost connects clinical outcome to hospital management.
Impact
5. Agent decision
Actively notifies the responsible clinician with the protocol already prepared · If there is no response in 15 minutes, auto-escalates to the on-call supervisor · Step-by-step protocol: [1] Blood cultures ×2 + procalcitonin + CRP (now) [2] Fluids 500 mL crystalloids <30 min, re-check lactate [3] Broad-spectrum empiric antibiotics <60 min [4] Notify ICU if lactate does not respond or MAP <65 after fluids · Clinical traceability exportable for MDR and EU AI Act
or, if reliability is medium or ISA detects high false-positive rate in this profile (82%)
→ The agent triggers intensive monitoring: increases vital-sign review frequency · defines the exact threshold that would trigger the critical alert · prepares the protocol on standby · the clinician receives a watch notice, not a maximum-urgency alert
or, if the signal is weak and isolated (61%)
→ The agent keeps active surveillance: monitors without escalating · re-evaluates in 2h · if the pattern consolidates, it triggers the appropriate alert automatically · it does not consume clinical capacity while the signal does not justify it
The agent does not have a single alert mode: it has three calibrated responses based on deterioration pattern. That solves alert fatigue without losing sensitivity where it matters. The agent does not replace clinical decision-making — prescription remains the clinician’s responsibility — but it removes all the work before that decision under pressure.
⚠ Antibiotic selection is the clinician’s responsibility, subject to local antibiograms, patient allergies, and formulary. This output does not constitute a prescribing recommendation. SaMD classification under MDR Annex VIII Rule 11.
ActionPDF
Illustrative example. Each deployment is adapted to each institution’s models, data, and operating procedures.
Estimated impact · wards with active early-warning
−7%
Mortality per hour of earlier detection
Surviving Sepsis Campaign reference · direct impact of shortening time to antibiotics
80%+
Alert response rate with context
Vs 20–30% with score-only alerts · less fatigue without losing sensitivity
−3 days
Average ICU stay per case detected in-window
€3,000–€5,000 avoided cost per day · direct impact on capacity and unit efficiency