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Swan and colleagues: flow-directed balloon-tipped cardiac catheter

Contribution grade

Surgery, anesthesia and critical care · EMPIRICAL

Reference score130,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Reported balloon-tipped flow-directed catheter permitting bedside right-heart and wedge-pressure measurements.

Scientific scope

The record is the exact six-author 1970 New England Journal of Medicine report. Its first 100 catheterizations do not establish benefit across all critically ill patients, and later thermodilution, monitoring protocols, complications and outcome trials remain separate.

Evidence

The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is the exact six-author 1970 New England Journal of Medicine report. Its first 100 catheterizations do not establish benefit across all critically ill patients, and later thermodilution, monitoring protocols, complications and outcome trials remain separate.

Contributors

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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