The optimal organization of stroke systems to deliver timely endovascular thrombectomy (EVT) remains a central question in stroke care, with existing literature comparing “mothership” versus “drip-and-ship” pathways. ^{Reference Ameen, Dewey and Khalil1} Research has often focused on short-term functional outcomes and mortality, often within 90 days, leaving longer-term trajectories less well described. In this context, the analysis conducted by Murphy et al. ^{Reference Murphy, Hong, Fang, Austin, Kapral and Yu2} provides an important extension to prior work by examining outcomes beyond the acute phase in a Canadian population.

Prior studies are frequently constrained to 90-day follow-up but have generally demonstrated worse functional outcomes and higher mortality among patients undergoing inter-hospital transfer for EVT. This has largely been attributed to treatment delays and infarct progression during transport. ^{Reference Mulder, Jansen and Goldhoorn3,Reference Wouters, Seners and Yuen4} By contrast, the current study’s longer observation window highlights that mortality risk associated with transfer is not static over time, challenging the conventional assumption that early disadvantages necessarily translate into persistently worse long-term survival.

The finding of front-loaded mortality among transferred patients aligns with established evidence that delays to reperfusion are strongly associated with early death and poor functional outcome. More novel is the observation that, among those who survive beyond the initial post-procedural period, longer-term mortality appears lower compared with direct-to-comprehensive stroke center patients. This finding is hypothesis generating but is consistent with literature on infarct growth heterogeneity and the concept of “fast” versus “slow” progressors, ^{Reference Wouters, Seners and Yuen4} suggesting that transfer pathways may selectively disadvantage patients with limited collateral reserve while identifying a subgroup with more favorable physiology who derive durable survival benefit once reperfusion is achieved. However, the higher rate of residential care admission among transferred survivors echoes data showing worse functional independence after delayed EVT, reinforcing the distinction between survival and functional outcomes in this population. ^{Reference Mulder, Jansen and Goldhoorn3}

Time to treatment remains relevant, and clinical and radiological deterioration during transport risks a futile transfer. From a systems-of-care perspective, the findings reinforce the imperative to minimize transfer-related delays while acknowledging that inter-hospital transfer remains unavoidable for many patients, particularly in geographically dispersed regions. The increased rate of residential care admission among transferred survivors highlights a need to complement acute care optimization with equitable access to post-acute rehabilitation and community support. Further advancement in reducing stroke evolution, such as improvements in thrombolytic agents and/or neurocytoprotectants, will be critical to improving outcomes.