Warfarin, Low-Risk Clusters, and Resource-Limited Settings
Ken Okumura · 2026
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Description
Okumura wrote a 2026 editorial weighing where warfarin, the older blood thinner, still fits in stroke prevention for atrial fibrillation now that four direct oral anticoagulants dominate guidelines. Those newer drugs matched or beat warfarin in trials, roughly halving brain bleeding risk. Yet warfarin remains the only oral option for patients with mechanical heart valves or marked mitral narrowing. It costs a small fraction of the newer drugs.
Okumura discusses a study that clusters patients by risk. In a low-risk cluster, defined by younger age, higher body mass, and better kidney function, warfarin's net clinical outcomes rivaled the newer drugs. The study comes with an interactive prediction tool. He cautions that the cluster cutoffs are not yet defined for everyday practice and need validation. The editorial argues warfarin deserves a deliberate place in care, especially where resources are limited.
Catalog record
| CREATOR | Ken Okumura |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 10 KB |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |