Circuit Diagram · Blood Flow Path
VV ECMO
ECG— bpm
Arterial Pressure— / —
Circuit Pressures
P. Pre
—
mmHg
P. Post
—
mmHg
ΔP
—
mmHg
Venous P
—
mmHg
Flow
—
L/min
Oxygen Delivery
DO₂
—
mL/min
VO₂
—
mL/min
DO₂/VO₂
—
ratio
Target ratio > 3–4
ABG (Arterial)
pH
—
PaCO₂
—
PaO₂
—
HCO₃
—
BE
—
SaO₂
—
Circuit Blood Gases
Pre-Ox SvO₂
—
%
Post-Ox SO₂
—
%
Recirc
—
%
Eff. Flow
—
L/min
ACT / Coagulation
ACT
—
sec
Target
180–220
sec
Heparin not started
Patient Vitals
HR
—
bpm
MAP
—
mmHg
SpO₂
—
%
Temp
—
°C
Cannula Configuration
Drainage Cannula
Return Cannula
Adequate cannula sizes. Monitor for recirculation and line pressures.
Recirculation Estimate
—
% recirculation
Recirculation depends on cannula proximity, flow rate, and cardiac output.
Cannula Performance
Drainage P
—
mmHg
Return P
—
mmHg
Normal drainage pressure range: -20 to -60 mmHg
🎯 CANNULA POSITIONING
🔵 DRAINAGE CANNULA
+55 cm
Tip Zone
RA
Recirc. Risk
Low
🔴 RETURN CANNULA
+45 cm
Tip Zone
RA
Recirc. Risk
Low
Quick Presets
Show Target Zones
Show Anatomy Overlay
Position both cannulas within target zones for optimal function.
Static Chest X-Ray – Final Cannula Position
SaO₂ Trend
PaCO₂ Trend
MAP Trend
ΔP Trend
Event Timeline
Weaning Assessment
Ready
Gradually reduce ECMO flow and sweep gas while monitoring patient tolerance. Successful weaning requires sustained oxygenation and CO₂ clearance on minimal support.
Current Flow
—
L/min
Target Flow
1.0
L/min
⬇ Goal: 1.0 L/min
SaO₂
—
%
Min 88%
Target ≥92%
PaCO₂
—
mmHg
Max 55
Target ≤50
SaO₂ ≥ 92%
PaCO₂ ≤ 50 mmHg
Flow reduced to ≤ 1.5 L/min
Performance Scoring
Overall Score
—
Time in Target
—
Alarms Handled
—
Patient Stability
—
DO₂ Adequacy
—
Coagulation Mgmt
—
Knowledge Check
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Handoff Report Generator
📚 ECMO Knowledge Hub
Comprehensive reference for perfusionists and students
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