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The effect of brain death protocol duration on potential donor losses due to cardiac arrest
Glauco Adrieno Westphal1,2, Tiago Amaral Slaviero3, Artur Montemezzo3
1Transplantation Center of Santa Catarina, Santa Catarina, Brazil. glauco.w@brturbo.com.br.
Insights
Prolonged brain death protocol duration increases cardiac arrest risk in potential organ donors. Optimizing the time from diagnosis to procurement, ideally between 12 and 30 hours, can reduce donor losses.
Area of Science:
- Organ transplantation
- Critical care medicine
- Nephrology
Background:
- Severe inflammatory responses post-brain death (BD) can lead to cardiovascular deterioration and cardiac arrest (CA).
- Understanding factors contributing to CA in potential donors is crucial for optimizing organ procurement.
- Brain death protocol duration (BDPD) is a potential modifiable factor.
Purpose of the Study:
- To evaluate the impact of brain death protocol duration (BDPD) on potential donor losses due to cardiac arrest (CA).
- To identify a chronological threshold for BDPD beyond which CA risk significantly increases.
Main Methods:
- Retrospective analysis of potential donors from May 2012 to April 2014.
- Analysis of cardiac arrest (CA) risk in relation to brain death protocol duration (BDPD).
- Identification of chronological thresholds for increased CA probability.
Main Results:
- A greater chance of cardiac arrest (CA) was observed after a 30-hour brain death protocol duration threshold (OR 1.67).
- The lowest risk of CA was identified for BDPD between 12 and 30 hours (OR 0.32).
- Multivariate analysis indicated that BDPD between 12-30 hours, intensive care unit management, and goal-directed protocols were associated with lower CA occurrence.
Conclusions:
- Extended duration between brain death diagnosis and organ procurement is a significant risk factor for CA in potential deceased donors.
- Optimizing BDPD to a 12-30 hour window may mitigate CA risk and reduce donor losses.
- Adherence to intensive care unit protocols and goal-directed management are key to improving donor outcomes.
Background:
The severe inflammatory reaction that occurs after brain death (BD) tends to amplify over time, contributing to cardiovascular deterioration and occurrence of cardiac arrest (CA). Our purpose is to evaluate the effect of BD protocol duration (BDPD) on potential donor losses due to CA.
Methods:
This retrospective analysis included potential donors reported during the period from May 2012 to April 2014. The risk of losses due to CA was analyzed to identify the chronological threshold at which the probability of loss due to CA increases.
Results:
Three hundred and eighty-four potential donors were analyzed. There was a greater chance of CA after a 30-hour threshold (OR 1.67, 95% CI: 1.38-1.83), and the lowest risk of was identified for the range from 12 to 30 hours (OR 0.32, 95% CI: 0.19-0.52). Multivariate analysis identified the following variables as being associated with lower occurrence of CA: BDPD between 12 and 30 hours, management of a potential donor inside the intensive care unit, and the adherence to a goal-directed protocol.
Conclusion:
A long duration between the first clinical test for BD diagnosis and the procurement of organs may be an important risk factor for the occurrence of cardiac arrest in deceased potential donors.
