Evidence map›Paper›PMID 33179734›Full record

ArticleAmerican journal of hypertension2021

Variability of Aldosterone Measurements During Adrenal Venous Sampling for Primary Aldosteronism.

Nicholas Yozamp, Gregory L Hundemer, Marwan Moussa, Johnathan Underhill, Tali Fudim, Barry Sacks, Anand Vaidya

Open access · bronzeAbstract read
In one paragraph

Article in American journal of hypertension, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Is It Time to Retire Aldosterone Suppression Testing?American journal of hypertension · 2026
    Review
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  11. Review
  12. Article
  13. Primary Aldosteronism: State-of-the-Art Review.American journal of hypertension · 2022
    Article
  14. Review
  15. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Nicholas YozampCenter for Adrenal Disorders, Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
Gregory L HundemerDivision of Nephrology, The Ottawa Hospital, University of Ottawa, Ottawa, Ontario, Canada.
Marwan MoussaDepartment of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.
Johnathan UnderhillDepartment of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.
Tali FudimDepartment of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.
Barry SacksDepartment of Radiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.
Anand VaidyaCenter for Adrenal Disorders, Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
Beth Israel Deaconess Medical Center · USBrigham and Women's Hospital · USUniversity of Ottawa · CA

Funding

TRAINING PROGRAM IN HYPERTENSIONT32HL007609 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI ADLER, GAIL KURR · 1985 to 2022
$10.2M
Unrecognized Primary Aldosteronism as a Pathogenic Mechanism for Chronic Kidney Disease in DiabetesR01DK115392 · NIDDK · BRIGHAM AND WOMEN'S HOSPITAL · PI Anand Vaidya · 2018 to 2026
$6.0M
Aldosterone, the Mineralocorticoid Receptor, and Cardiovascular Disease in ObesityR01HL153004 · NHLBI · BRIGHAM AND WOMEN'S HOSPITAL · PI VAIDYA, ANAND · 2020 to 2024
$4.4M
NHLBI NIH HHS R01 HL153004NHLBI NIH HHS T32 HL007609NIDDK NIH HHS R01 DK115392
6 · The paper itself

Abstract

backgroundVariability of aldosterone concentrations has been described in patients with primary aldosteronism.

methodsWe performed a retrospective cohort study of 340 patients with primary aldosteronism who underwent adrenal venous sampling (AVS) at a tertiary referral center, 116 of whom also had a peripheral venous aldosterone measured hours before the procedure. AVS was performed by the same interventional radiologist using bilateral, simultaneous sampling, under unstimulated and then stimulated conditions, and each sample was obtained in triplicate. Main outcome measures were: (i) change in day of AVS venous aldosterone from pre-AVS to intra-AVS and (ii) variability of triplicate adrenal venous aldosterone concentrations during AVS.

resultsWithin an average duration of 131 minutes, 81% of patients had a decline in circulating aldosterone concentrations (relative decrease of 51% and median decrease of 7.0 ng/dl). More than a quarter (26%) of all patients had an inferior vena cava aldosterone of ≤5 ng/dl at AVS initiation. The mean coefficient of variation of triplicate adrenal aldosterone concentrations was 30% and 39%, in the left and right veins, respectively (corresponding to a percentage difference of 57% and 73%), resulting in lateralization discordance in up to 17% of patients if the lateralization index were calculated using only one unstimulated aldosterone-to-cortisol ratio rather than the average of triplicate measures.

conclusionsCirculating aldosterone levels can reach nadirs conventionally considered incompatible with the primary aldosteronism diagnosis, and adrenal venous aldosterone concentrations exhibit acute variability that can confound AVS interpretation. A single venous aldosterone measurement lacks precision and reproducibility in primary aldosteronism.

Indexed as

AldosteroneHyperaldosteronismHypertensionAdrenal GlandsBloodBlood PressureFemaleHumansMaleMiddle AgedObserver VariationOutcome Assessment, Health CareReproducibility of ResultsRetrospective StudiesVeinsAldosteroneadrenal venous samplingaldosteroneblood pressurehypertensionprimary aldosteronism

Identifiers

PMID33179734
PMCPMC7891268
OpenAlexW3104719938

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.