Paris ECMO Course
The excellent lecturer was Dr. Guillaume Lebreton,
Associate Professor and Cardiothoracic Surgeon
Director of the CPB and ECMO program,
Department of Cardio-Thoracic Surgery
Pitié Salpêtrière Hospital
How Not to Frack Up
DO NOT ADAPT TECHNIQUE TO YOUR CAPACITYFixed Point for Wire–meaning wire must be held stationary as you dilate, otherwise dilator will back wall through vessel with anything but the stiffest guidewire. We get a false sense of security from smaller line placement.Discussed being fooled by echoThey do cutdowns for all ECPRInflow
Crap flow if too smallIf you measure from the puncture site directly to the middle of the sternum, that should be your insertion. Too deep is better, with Maquet you want the tip in the RA24-29 F with 25 being the sweet spot55 cm Maquet for all adultsWhen the holes are through the vessel, PULL Back the DilatorOutflow
Hemolysis if too small17-21 F for VA19-23 F for VVIJ catheter length-15 cm on right, 23 cm on leftDon’t pull back dilator for arterial placementPlacement
Pad behind buttocks to straighten vessels 4″ or soNeedle bevel facing up and wire’s j facing upGentle Angle for Needle PlacementGuidewire-go fast and it goes straightAlways use the 150 cm guidewire. Leave 1 meter out, 50 cm in ptScalpel-1 cm cut and plungeDoesn’t bother rotating the dilatorsVV-do the femoral first as it is harder to knock outFemoral-Femoral VV
Return close to tricuspid, not multi-stageDrainage as central as possible, but in IVC, not RAPut in both guidewires firstPut the longer cannula (return) in firstInflow-21-23 short insertion, but same length cannula (Maquet)Outflow-17-19, single stage (Medtronic)TroubleShooting
If at the same speed, decreased flow–think thrombosisStarting VVECMO
Clamp on tubingStart slow, 2000 rpm then slowly declampStart sweep at 6 lpm (or 1:1 with flow)Go up to the max flow you can get at first to see your maxYou want to provoke reflowYou should be able to get big flows (6-7 lpm)Dial Back to 5-6 Liters or 3 L/m2 (>60% of CO is what you should be aiming to capture)You should be able to get to 100% sat quicklyIf you are seeing recirc, pull back inflow slightly (max 1-3 cm)Treat the pt not the xray when it comes to cannula positioningFactors that increase Recirc
Proximate venous tipsLow COHypovolemiaIncreased pump flow ratesAvalon
Turn Head all the way to the left to align IVC and SVC
VA
do venous 1st if doing cutdown
Image by Cedric Lange