The Comparison of Single Catheter and Double Catheter Adrenal Vein Sampling Methods Based on the Upper Limb Approach

N/ANot Yet RecruitingNCT06737848

Army Medical University, China70 enrolled

Overview

Primary Aldosteronism (PA) is a clinical syndrome characterized by the autonomous overproduction of aldosterone by the adrenal cortex's zona glomerulosa, leading to hypertension, elevated aldosterone levels, and suppressed renin activity as the primary manifestations. Studies have shown that the prevalence of PA in an unselected hypertensive population ranges from 5% to 11% , while the prevalence in patients with resistant hypertension is approximately 20% . PA is one of the most common causes of secondary hypertension , and its prevalence increases with rising blood pressure levels. Due to the adverse effects of PA on the heart, arterial walls, and kidneys, it contributes to the occurrence of cardiovascular events, with atrial fibrillation being the most common . In summary, PA is characterized by rapid onset, significant symptoms, obscurity, and severe complications, making early diagnosis and targeted treatment essential for prevention. This study aims to explore a quasi-selected prospective randomized controlled method to compare the clinical efficacy differences between single-catheter and dual-catheter adrenal sampling via the right upper limb approach. The study seeks to clarify the effectiveness and safety of single-catheter sampling from the upper limb, providing a more efficient and cost-effective solution for the subtype diagnosis of patients with Primary Aldosteronism (PA).

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

DIAGNOSTIC

Masking

NONE

Enrollment

Conditions

Primary Aldosteronism

Interventions

Single catheter adrenal vein samplingPROCEDURE

The clinical invasive procedure involves inserting a single catheter into the right and left adrenal veins to collect blood samples from both adrenal veins.

Double catheters adrenal vein samplingPROCEDURE

The clinical invasive procedure involves inserting double catheters into the right and left adrenal veins to collect blood samples from both adrenal veins.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 70 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Patients aged 18-70 years with hypertension. * Initial screening shows a standing aldosterone/renin ratio (ARR) \> 3.7, a baseline aldosterone level \> 10 ng/dl, aldosterone level \> 6 ng/dl after a saline load test, or aldosterone decrease of less than 30% after a captopril suppression test, consistent with a diagnosis of primary aldosteronism. * Voluntary participation in the trial, with signed informed consent. Exclusion Criteria: * Patients with an allergy to iodinated contrast agents. * Patients who are pregnant, breastfeeding, or planning to become pregnant. * Patients with severe comorbidities, such as renal failure, liver cirrhosis, metastatic tumors, or those who have had an acute stroke or acute myocardial infarction, as well as patients with a history of surgery within the past month. * Patients suspected of having adrenal cortical carcinoma.

Outcomes

Primary Outcomes

Success rate of left-sided adrenal vein sampling between two groups

Biochemical analysis of puncture-point blood samples: A selection index (SI) ≥ 2, defined as the ratio of adrenal plasma cortisol concentration (PCC) to peripheral PCC, indicates successful unilateral aldosterone venous sampling (AVS).