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Related Concept Videos

Adrenal Gland Disorders01:27

Adrenal Gland Disorders

Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
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Antihypertensive Drugs: Potassium-Sparing Diuretics

Liddle syndrome is a genetically inherited form of hypertension characterized by the overactivity of epithelial sodium channels in the nephron, the functional unit of the kidney. This heightened activity leads to increased sodium reabsorption and excessive excretion of potassium. To counteract this, potassium-sparing diuretics such as amiloride are used. They function by blocking these sodium channels, thereby reducing the influx of sodium into the epithelial cells and minimizing the loss of...
Hormonal Regulation01:33

Hormonal Regulation

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Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
Hypertension I: Introduction01:28

Hypertension I: Introduction

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Nephrotic Syndrome II : Assessment and Medical Management

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Related Experiment Video

Updated: May 9, 2026

A Novel Method: Super-selective Adrenal Venous Sampling
06:08

A Novel Method: Super-selective Adrenal Venous Sampling

Published on: September 15, 2017

[Primary hyperaldosteronism: a diagnostic algorithm].

Antonio Del Giudice, Michele Prencipe, Filippo Aucella

    Giornale Italiano Di Nefrologia : Organo Ufficiale Della Societa Italiana Di Nefrologia
    |July 9, 2013
    PubMed
    Summary

    Primary aldosteronism, a common cause of secondary hypertension, involves excessive aldosterone production. Diagnosis uses screening tests, imaging, and genetic analysis to identify causes and guide treatment.

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    Area of Science:

    • Endocrinology
    • Hypertension Research

    Context:

    • Primary aldosteronism is the most common cause of secondary hypertension, affecting 5-12% of the population.
    • Key causes include bilateral adrenal hyperplasia and aldosterone-producing adenomas.
    • It can be sporadic or familial, with distinct genetic subtypes.

    Purpose:

    • To outline the diagnostic pathway for primary aldosteronism.
    • To differentiate between common and rare forms of the condition.
    • To highlight the role of various diagnostic modalities.

    Summary:

    • Diagnosis involves screening with the aldosterone/renin ratio, followed by confirmatory tests.
    • Imaging studies like CT/MR scans aid in identifying adrenal abnormalities.
    • Adrenal vein sampling is crucial for subtype diagnosis and surgical planning, while genetic testing excludes familial forms.

    Impact:

    • Improved diagnostic accuracy for primary aldosteronism.
    • Better patient stratification for targeted therapies, including surgical intervention.
    • Enhanced understanding of the genetic basis and subtypes of primary aldosteronism.