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dromlakhani (@dromlakhani) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Esa Pa Decide Avs Use by dromlakhani

Name: Esa Pa Decide Avs Use
Rating: 4.2 (5 reviews)
Author: dromlakhani

Esa Pa Decide Avs Use

Determines whether to perform adrenal venous sampling (AVS) to lateralize aldosterone excess in patients with confirmed primary aldosteronism (PA) who are being evaluated for surgical treatment. Indicated when surgery is feasible and desired by the patient, or when subtype workup is planned for a surgical candidate, especially in those younger than 35 years with spontaneous hypokalemia, marked aldosterone excess, and unilateral adrenal lesions on CT.

dromlakhani Updated Aug 19, 2026 10 repo stars

File contents

Determine When to Use Adrenal Venous Sampling for PA

STEP 1 — Gather Information

Confirm PA via positive ARR and confirmatory test; assess blood pressure, serum potassium, age, adrenal CT findings (lesion size, laterality, cortical adenoma features), patient’s surgical candidacy and desire, and current medications (especially MR antagonists). Proceed to assess surgical feasibility and patient preference.

STEP 2 — Rule In / Rule Out

Is surgical treatment feasible and desired by the patient? If yes, proceed to Step 3; if no, recommend medical treatment with an MR antagonist and stop.

STEP 3 — Classify or Stratify

Evaluate for AVS-sparing criteria: age <35 years, spontaneous hypokalemia, marked aldosterone excess (PAC >20 ng/dL), and unilateral adrenal lesion with radiological features of a cortical adenoma on CT. If all criteria are met, AVS may be omitted; otherwise, proceed to recommend AVS.

STEP 4 — Decide

If all AVS-sparing criteria are met, consider proceeding directly to unilateral adrenalectomy without AVS; if any criterion is unmet, recommend AVS to lateralize aldosterone excess.

Clinical Guardrails / Mimics / Pitfalls

Do not perform AVS in patients unwilling or unable to undergo surgery; avoid relying on CT alone for lateralization in patients ≥35 years or with bilateral/hyperplastic adrenal disease; ensure an experienced radiologist conducts AVS to minimize non‑selective sampling and adrenal hemorrhage; withhold AVS in uncontrolled hypertension or coagulopathy until stabilized.

Concrete Clinical Example

A 32‑year‑old woman with hypertension, spontaneous hypokalemia, PAC 30 ng/dL, undetectable renin, and a 1.5 cm left adrenal nodule on CT desires surgery. She meets all AVS‑sparing criteria (<35 y, spontaneous hypokalemia, marked aldosterone excess, unilateral cortical adenoma‑like lesion), so AVS is omitted and she proceeds to laparoscopic left adrenalectomy.

Source: The Management of Primary Aldosteronism: Case Detection, Diagnosis, and Treatment: An Endocrine Society Clinical Practice Guideline, John W. Funder et al., 2016, DOI:10.1210/jc.2015-4061

---name: esa-pa-decide-avs-usedescription: Determines whether to perform adrenal venous sampling (AVS) to lateralize aldosterone excess in patients with confirmed primary aldosteronism (PA) who are being evaluated for surgical treatment. Indicated when surgery is feasible and desired by the patient, or when subtype workup is planned for a surgical candidate, especially in those younger than 35 years with spontaneous hypokalemia, marked aldosterone excess, and unilateral adrenal lesions on CT.---# Determine When to Use Adrenal Venous Sampling for PA## STEP 1 — Gather InformationConfirm PA via positive ARR and confirmatory test; assess blood pressure, serum potassium, age, adrenal CT findings (lesion size, laterality, cortical adenoma features), patient’s surgical candidacy and desire, and current medications (especially MR antagonists). Proceed to assess surgical feasibility and patient preference.## STEP 2 — Rule In / Rule OutIs surgical treatment feasible and desired by the patient? If yes, proceed to Step 3; if no, recommend medical treatment with an MR antagonist and stop.## STEP 3 — Classify or StratifyEvaluate for AVS-sparing criteria: age <35 years, spontaneous hypokalemia, marked aldosterone excess (PAC >20 ng/dL), and unilateral adrenal lesion with radiological features of a cortical adenoma on CT. If all criteria are met, AVS may be omitted; otherwise, proceed to recommend AVS.## STEP 4 — DecideIf all AVS-sparing criteria are met, consider proceeding directly to unilateral adrenalectomy without AVS; if any criterion is unmet, recommend AVS to lateralize aldosterone excess.## Clinical Guardrails / Mimics / PitfallsDo not perform AVS in patients unwilling or unable to undergo surgery; avoid relying on CT alone for lateralization in patients ≥35 years or with bilateral/hyperplastic adrenal disease; ensure an experienced radiologist conducts AVS to minimize non‑selective sampling and adrenal hemorrhage; withhold AVS in uncontrolled hypertension or coagulopathy until stabilized.## Concrete Clinical ExampleA 32‑year‑old woman with hypertension, spontaneous hypokalemia, PAC 30 ng/dL, undetectable renin, and a 1.5 cm left adrenal nodule on CT desires surgery. She meets all AVS‑sparing criteria (<35 y, spontaneous hypokalemia, marked aldosterone excess, unilateral cortical adenoma‑like lesion), so AVS is omitted and she proceeds to laparoscopic left adrenalectomy.**Source:** The Management of Primary Aldosteronism: Case Detection, Diagnosis, and Treatment: An Endocrine Society Clinical Practice Guideline, John W. Funder et al., 2016, DOI:10.1210/jc.2015-4061

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