Key result
Renal venous renin ratio ≥1.5 predicts post-surgical blood pressure reduction with ~91% accuracy.
Why the study?
Does the measurement of renal venous renin ratio predict blood pressure reduction after surgery in patients with renovascular hypertension?
Observational (n=115)
Does the measurement of renal venous renin ratio predict blood pressure reduction after surgery in patients with renovascular hypertension?
A renal venous renin ratio of 1.5 or greater is a safe and reliable predictor of blood pressure improvement following corrective surgery for renovascular hypertension.
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Supports renal venous renin ratio ≥1.5 for surgical prognostication; leaves open prospective validation before clinical adoption.
Pawsey et al. (1971) conducted an observational in Renovascular hypertension (n=115). Renal venous renin ratio determination was evaluated on Correct prediction of blood pressure reduction after surgery. A renal venous renin ratio of 1.5 or greater correctly predicted blood pressure reduction after surgery in 10 of 11 patients followed for at least 12 months.
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