Documenting graft outcome to substantiate the organ-donation rationale after out-of-hospital cardiac arrest due to aneurysmal subarachnoid haemorrhage - Summary - MDSpire
Assess whether reported outcomes support aggressive treatment and organ donation after OHCA caused by aneurysmal subarachnoid haemorrhage (OHCA-aSAH), and identify data needed to evaluate both.
Approach:
Treatment outcomes: Critically appraises treatment comparisons, outcome prediction, and the timing of clinical events in the multicentre cohort reported by Legros and colleagues.
Donation outcomes: Examines reported donation rates and the absence of data on organs transplanted, graft function, and recipient outcomes.
Proposed reporting: Recommends time-resolved clinical and donation data in a prospective cohort, including reasons for non-donation.
Key Findings:
Eight of 164 patients (4.9%) had favourable outcomes; seven had an mRS score of 2–3 and one had an mRS score of 0–1.
All eight patients with favourable outcomes underwent coiling, compared with 18.6% of those with poor outcomes; 124 of 164 patients received no aneurysm treatment. The authors argue this comparison cannot establish a treatment effect because of clinical select…
Brain death occurred early, at a median of 1 day. The authors note that the study did not report the interval to aneurysm securing or the timing of other key events.
The study reported that 45.4% of brain-dead patients proceeded to donation, but did not report organs retrieved or transplanted, graft outcomes, recipient outcomes, or reasons for non-donation.
Interpretation:
The authors argue that the cohort does not establish whether aggressive treatment caused recovery or quantify the realised donation benefit. They propose reporting clinical trajectories and transplant outcomes, and describe controlled donation after circulatory death as a possible pathway subject to eligibility and local protocols.
Limitations:
Treatment comparisons are vulnerable to confounding by indication, early clinical selection, and immortal-time bias; no untreated patient with a favourable outcome was available as a comparator.
Only seven favourable events were available for eight candidate predictors, and the analysis lacked internal validation; the reported c-index of 0.95 may therefore be optimistic.
The cohort did not report timing of aneurysm securing, rebleeding, prognostication, withdrawal of life-sustaining therapy, or detailed donation and transplant outcomes.
The authors note that the cohort’s donation population differs from the national French potential-donor population used for comparison.
Conclusion:
The authors call for prospective, time-resolved reporting of treatment and neurological events, donation pathways, organs retrieved and transplanted, graft and recipient outcomes, and reasons for non-donation.
