Primary Aldosteronism
Conditions
Keywords
the oral sodium loading test, diagnose
Brief summary
Primary aldosteronism (PA) is the most common cause of secondary hypertension. Liquid chromatography - tandem mass spectrometry (LC-MS/MS) is more accurate than the traditional radioimmunoassay in measuring aldosterone. This study aims to establish a more precise diagnostic threshold for the oral sodium loading test (OSLT) by using LC-MS/MS to measure urinary aldosterone levels. We will combine the biochemical results of OSLT and other data from healthy volunteers and suspected PA patients to determine a new 24-hour urinary aldosterone threshold. We expect to improve the diagnostic accuracy of PA, helping clinicians identify this curable cause of hypertension earlier and more accurately, and achieving precise treatment.
Interventions
DIAGNOSTIC_TESTThe oral sodium loading test
These subjects underwent a three-day high-salt diet test, during which they consumed an additional 6-10 grams of salt each day. On the third day, tests were conducted on the aldosterone, sodium, potassium and creatinine levels in the 24-hour urine, blood potassium, creatinine, standing aldosterone concentration, plasma renin activity, and the steroid hormone profile.
Sponsors
Peking Union Medical College Hospital
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
Yes
Inclusion criteria
for the normal control group: Age 18-70 years old, BMI: 18.5-23.9kg/m ²，gender not restricted. blood pressure: 100-120/60-80mmHg. no history of hypertension. No abnormal nodules found in adrenal CT. Previous blood potassium and electrocardiogram were all within normal ranges., No history of liver or kidney dysfunction, malignant tumors, metabolic diseases or cardiovascular diseases, and no medication used.
Exclusion criteria
Those with a family history of hypertension or with clinical manifestations of secondary hypertension. Those who have been taking drugs that may affect the RAAS system for a long time (such as contraceptives, steroids, etc.). Those with cardiac dysfunction or severe arrhythmia and unable to tolerate the test. Patients with suspected primary aldosteronism in the outpatient setting. Inclusion criteria: Patients with suspected primary aldosteronism in the outpatient setting. Willing to undergo 4-week spironolactone treatment and cooperate with follow-up.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 24-hour urinary aldosterone levels after a 3-day high-sodium diet | Two weeks after completing the oral sodium loading test |
Countries
China
Contacts
CONTACTTong Anli
Outcome results
None listed