Hypertension, Primary Aldosteronism
Conditions
Keywords
hypertension, Aldosterone-Renin ratio, Primary aldosteronism
Brief summary
To evaluate the effect of anti-hypertensive medication on efficiency of primary aldosteronism screening and confirmatory test, and to determine the appropriate diagnostic cutoff value for Chinese hypertension patients during antihypertensive drugs therapy.
Detailed description
Aldosterone-Renin ratio (ARR)is currently the most reliable means available for screening for primary aldosterone（PA）while captopril challenging test is the widely used confirmatory test. However, some antihypertensive drugs may interfer aldosterone and renin levels. Thus, PA guidelines suggest that antihypertensive drugs should be withdraw or change therapy before screening. But withdraw/changing the therapy is inconvenient for patients. The investigators prepare to start a prospective study through recruiting hypertension patients, completing the ARR screening and captopril challenging test before and after withdraw/change therapy.
Interventions
DIAGNOSTIC_TESTwithdraw antihypertensive drugs
patients need to withdraw of all antihypertensive drugs or change therapy to Doxazosin/Diltiazem for 2-4 weeks prior
Sponsors
Chongqing Medical University
Study design
Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
10 Years to 90 Years
Healthy volunteers
No
Inclusion criteria
* Persistent hypertension \>150/100mmHg, including previously diagnosed grade 2 hypertension but well controlled by 1-2 drugs; newly diagnosed hypertension with 3 days blood pressure \> 150 / 100mmHg * Resistant hypertension(combined with three antihypertensive drugs and one of them is diuretic but blood pressure is still greater than 140 / 90 mmHg ; or need to combined four anti-hypertensive drugs to control the blood pressure under 140 / 90 mmHg) * Family history of hypertension with early onset (\< 40 years old) * Family history of hypertension with early onset (\<40 years old) and cerebrovascular accident * Hypertension with spontaneous or diuretic hypokalemia * Hypertensive with adrenal incidentaloma * Hypertensive with OSAS * First-degree relatives of PA patients and with hypertension Stable antihypertensive medication therapy for more than 2 weeks, medication including：β-blockers, CCB, ACEi, ARB, MRA, and other diuretics.
Exclusion criteria
* Patients hard to change or stop the medication for accomplish the screening test or diagnosis Unwilling to participate the study and refuse to sign on informed consent Patients who was diagnosed with other secondary hypertension Suspected with PA（rein concretion beyond the limit of normal reference range after stoping or changing the medication） Severe renal insufficiency （eGFR\<30 ml/min/1.73m2）; pregnancy
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Confirmation | 2 weeks | Consistent diagnosis after drug withdrawal |
| Missing Diagnosis | 2 weeks | essential hypertension turn to fit primary aldosteronism diagnosis after drug withdrawal |
| Misdiagnosis | 2 weeks | primary aldosteronism turn to fit essential hypertension diagnosis after drug withdrawal. |
Countries
China
Outcome results
None listed