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Reactive hyperreninemia in renovascular hypertension after angiotensin blockage with saralasin or converting enzyme inhibitor. 1979

D B Case, and J H Laragh

Baseline plasma renin activity and responses to saralasin and converting enzyme inhibitor SQ 20881 (teprotide) in 47 untreated patients with surgically correctable renovascular hypertension were compared to those in 100 patients with high- and normal-renin essential hypertension. All 32 renovascular patients on normal sodium intake had high renin-sodium profiles and renin values greater than or equal to 5 ng angiotensin I/mL.h, as compared to 20 of 64 with essential hypertension. Diagnostic discrimination was greatly enhanced by infusion of saralasin or SQ 20881, which elicited marked reactive hyperreninemia in 31 of 32 renovascular patients but in only two of 64 with essential hypertension. Reactive hyperreninemia appeared to be more a specific test for renovascular hypertension than depressor responses. Prior dietary sodium depletion abolished this specificity. The results suggest that after initial screening with renin measurements, testing with angiotensin blocking agents may be a useful secondary screening procedure for more invasive and definitive procedures.

UI MeSH Term Description Entries
D006977 Hypertension, Renal Persistent high BLOOD PRESSURE due to KIDNEY DISEASES, such as those involving the renal parenchyma, the renal vasculature, or tumors that secrete RENIN. Hypertensions, Renal,Renal Hypertension,Renal Hypertensions
D006978 Hypertension, Renovascular Hypertension due to RENAL ARTERY OBSTRUCTION or compression. Hypertension, Goldblatt,Goldblatt Syndrome,Goldblatt Hypertension,Renovascular Hypertension,Syndrome, Goldblatt
D007263 Infusions, Parenteral The administration of liquid medication, nutrient, or other fluid through some other route than the alimentary canal, usually over minutes or hours, either by gravity flow or often by infusion pumping. Intra-Abdominal Infusions,Intraperitoneal Infusions,Parenteral Infusions,Peritoneal Infusions,Infusion, Intra-Abdominal,Infusion, Intraperitoneal,Infusion, Parenteral,Infusion, Peritoneal,Infusions, Intra-Abdominal,Infusions, Intraperitoneal,Infusions, Peritoneal,Intra Abdominal Infusions,Intra-Abdominal Infusion,Intraperitoneal Infusion,Parenteral Infusion,Peritoneal Infusion
D007275 Injections, Intravenous Injections made into a vein for therapeutic or experimental purposes. Intravenous Injections,Injection, Intravenous,Intravenous Injection
D009318 Natriuresis Sodium excretion by URINATION. Natriureses
D009842 Oligopeptides Peptides composed of between two and twelve amino acids. Oligopeptide
D012083 Renin A highly specific (Leu-Leu) endopeptidase that generates ANGIOTENSIN I from its precursor ANGIOTENSINOGEN, leading to a cascade of reactions which elevate BLOOD PRESSURE and increase sodium retention by the kidney in the RENIN-ANGIOTENSIN SYSTEM. The enzyme was formerly listed as EC 3.4.99.19. Angiotensin-Forming Enzyme,Angiotensinogenase,Big Renin,Cryorenin,Inactive Renin,Pre-Prorenin,Preprorenin,Prorenin,Angiotensin Forming Enzyme,Pre Prorenin,Renin, Big,Renin, Inactive
D001794 Blood Pressure PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS. Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D003937 Diagnosis, Differential Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures. Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D003971 Diastole Post-systolic relaxation of the HEART, especially the HEART VENTRICLES. Diastoles

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