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The transfusion threshold consensus is here — but practice hasn't fully caught up. In the second episode of On with VON, Ben and Daphna sit down with Dr. Roger Soll and Dr. Ravi Patel to extend the conversation from the Vermont Oxford Network Grand Rounds on evidence to practice for transfusion thresholds.

The core finding across trials is consistent: lower thresholds for both packed red blood cells and platelets appear safe. The guidelines are freely available in JAMA Network Open and actionable — 11, 10, 9 grams per deciliter across the first three weeks for infants on respiratory support. So why hasn't practice shifted uniformly?

The group works through the populations the trials didn't fully capture — hypoxic-ischemic encephalopathy, the most premature infants, and babies in the first week of life when intraventricular hemorrhage risk peaks. On NEC and feeding during transfusion: the data may surprise you. On transfusion volume and infusion duration: an underappreciated variable, particularly for platelets.

The episode closes with practical guidance on implementing transfusion guidelines at the unit level — who needs to be in the room, how informatics tools can support decision-making, and why understanding protocol deviations matters as much as the guidelines themselves.

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Enjoy!