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Parasiliti-Caprino M, Bioletto F, Ceccato F, Lopez C, Bollati M, Di Carlo MC, Voltan G, Rossato D, Giraudo G, Scaroni C, Ghigo E, Maccario M. The Accuracy of Simple and Adjusted Aldosterone Indices for Assessing Selectivity and Lateralization of Adrenal Vein Sampling in the Diagnosis of Primary Aldosteronism Subtypes. Front Endocrinol (Lausanne) 2022; 13:801529. [PMID: 35250861 PMCID: PMC8888437 DOI: 10.3389/fendo.2022.801529] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 01/19/2022] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE This study aimed to evaluate the reliability of simple and corrected aldosterone indices for assessing the selectivity and lateralization of adrenal vein sampling (AVS) in patients with primary aldosteronism. METHODS Data of all consecutive patients with primary aldosteronism who underwent AVS for subtype diagnosis, followed at two Italian referral centers, were analyzed retrospectively. RESULTS AVS achieved bilateral selectivity in 112/144 patients. Unilateral disease was diagnosed in 60 cases (53.6%) and idiopathic hyperaldosteronism in 52 individuals (46.4%). The aldosterone index (aldosterone ratio between an adrenal vein and the inferior vena cava) showed a high accuracy in predicting selectivity, compared to a cortisol selectivity index of 1.1, and a moderate accuracy, compared to cortisol cut-offs of 2 and 3. The simple aldosterone index showed a moderate accuracy in predicting ipsi/contralateral aldosterone hypersecretion, while lesion side- and hypokalemia-corrected aldosterone index revealed a significant improvement in predicting ipsi/contralateral disease. Moreover, the comparative aldosterone index (aldosterone ratio in the dominant vs the non-dominant adrenal vein) revealed a high accuracy in predicting unilateral primary aldosteronism. For an immediate clinical application of our results, the adjusted cut-offs were calculated, according to the Youden's criterion and to a pre-established specificity of 90%, for all possible combinations of lesion side at imaging and presence/absence of hypokalemia. CONCLUSIONS This study demonstrated the diagnostic accuracy of simple and clinical-/imaging-corrected aldosterone indices for adrenal vein sampling in subtype diagnosis of primary aldosteronism and suggests the potential application of these tools to select patients for adrenalectomy when standard indices cannot be performed.
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Affiliation(s)
- Mirko Parasiliti-Caprino
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, City of Health and Science University Hospital, University of Turin, Turin, Italy
- *Correspondence: Mirko Parasiliti-Caprino, ; orcid.org/0000-0002-6930-7073
| | - Fabio Bioletto
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, City of Health and Science University Hospital, University of Turin, Turin, Italy
| | - Filippo Ceccato
- Endocrinology Unit, Department of Medicine DIMED, University-Hospital of Padua, Padua, Italy
| | - Chiara Lopez
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, City of Health and Science University Hospital, University of Turin, Turin, Italy
| | - Martina Bollati
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, City of Health and Science University Hospital, University of Turin, Turin, Italy
| | - Maria Chiara Di Carlo
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, City of Health and Science University Hospital, University of Turin, Turin, Italy
| | - Giacomo Voltan
- Endocrinology Unit, Department of Medicine DIMED, University-Hospital of Padua, Padua, Italy
| | - Denis Rossato
- Radiology Unit, City of Health and Science University Hospital, University of Turin, Turin, Italy
| | - Giuseppe Giraudo
- Surgery, City of Health and Science University Hospital, University of Turin, Turin, Italy
| | - Carla Scaroni
- Endocrinology Unit, Department of Medicine DIMED, University-Hospital of Padua, Padua, Italy
| | - Ezio Ghigo
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, City of Health and Science University Hospital, University of Turin, Turin, Italy
| | - Mauro Maccario
- Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, City of Health and Science University Hospital, University of Turin, Turin, Italy
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Quencer KB. Adrenal vein sampling: technique and protocol, a systematic review. CVIR Endovasc 2021; 4:38. [PMID: 33939038 PMCID: PMC8093361 DOI: 10.1186/s42155-021-00220-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 03/10/2021] [Indexed: 12/31/2022] Open
Abstract
Primary aldosteronism is the leading cause of secondary hypertension worldwide. Its deleterious effects outstrip those due to blood pressure elevation alone. An essential part of the work-up of a patient with primary aldosteronism is determining if aldosterone production is unilateral or bilateral. With the former, surgery offers a potential cure and better overall outcomes. Adrenal vein sampling is considered the most reliable method to determine whether production is unilateral or bilateral. Sampling may be non-diagnostic when the vein cannot be properly cannulated. But with proper knowledge and experience as well as the utilization of certain techniques, procedure success can be high. Multiple protocols exist; their rationale and drawbacks are reviewed here. This article will give the reader an overview of techniques for improving procedural success as well as background, rationale and evidence to guide one in choosing the appropriate procedural and interpretation protocol.
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Affiliation(s)
- Keith B Quencer
- Department of Radiology, Division of Interventional Radiology, University of Utah, 50 North Medical Drive, Salt Lake City, UT, 84132, USA.
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