AWhat changed
Passed catheter through arm vein to right heart and documented placement radiographically.
Scientific scope
The record is Forssmann's sole-author 1929 Klinische Wochenschrift report and its self-experiment. It does not absorb later physiological catheterization by Cournand and Richards, coronary angiography, Swan-Ganz monitoring or general safety and efficacy claims.
Evidence
The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is Forssmann's sole-author 1929 Klinische Wochenschrift report and its self-experiment. It does not absorb later physiological catheterization by Cournand and Richards, coronary angiography, Swan-Ganz monitoring or general safety and efficacy claims.
Contributors
- Werner Forssmann · SCIENCE: Named source author of the scoped work; individual effort shares are not measured.
Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.
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