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Golani T, Bleier J, Kaplan A, Hod T, Sharabi Y, Leibowitz A, Grossman E, Shlomai G. A 120-Minute Saline Infusion Test for the Confirmation of Primary Aldosteronism: A Pilot Study. Am J Hypertens 2024; 37:415-420. [PMID: 38374690 DOI: 10.1093/ajh/hpae017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/12/2024] [Accepted: 02/09/2024] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND The saline infusion test (SIT) to confirm primary aldosteronism requires infusing 2 L of normal saline over 240 minutes. Previous studies raised concerns regarding increased blood pressure and worsening hypokalemia during SIT. We aimed to evaluate the diagnostic applicability of a SIT that requires 1 L of saline infusion over 120 minutes. METHODS A cross-sectional study, including all patients in a large medical center who underwent SIT from 1 January 2015 to 30 April 2023. Blood samples were drawn for baseline renin and aldosterone (t = 0) after 2 hours (t = 120 min) and after 4 hours (t = 240 min) of saline infusion. We used ROC analysis to evaluate the sensitivity and specificity of various aldosterone cut-off values at t = 120 to confirm primary aldosteronism. RESULTS The final analysis included 62 patients. A ROC analysis yielded 97% specificity and 90% sensitivity for a plasma aldosterone concentration (PAC) of 397 pmol/L (14 ng/dL) at t = 120 to confirm primary aldosteronism, and an area under the curve of 0.97 (95% CI [0.93, 1.00], P < 0.001). Almost half (44%) of the patients did not suppress PAC below 397 pmol/L (14 ng/dL) at t = 120. Of them, only one (4%) patient suppressed PAC below 276 pmol/L (10 ng/dL) at t = 240. Mean systolic blood pressure increased from 140.1 ± 21.3 mm Hg at t = 0 to 147.6 ± 14.5 mm Hg at t = 240 (P = 0.011). CONCLUSIONS A PAC of 397 pmol/L (14 ng/dL) at t = 120 has high sensitivity and specificity for primary aldosteronism confirmation.
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Affiliation(s)
- Tiran Golani
- Department of Internal Medicine D and Hypertension Unit, the Chaim Sheba Medical Center, Tel-Hashomer, Israel
- Department of Medicine, Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Jonathan Bleier
- Department of Internal Medicine D and Hypertension Unit, the Chaim Sheba Medical Center, Tel-Hashomer, Israel
- Department of Medicine, Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Alon Kaplan
- Department of Internal Medicine D and Hypertension Unit, the Chaim Sheba Medical Center, Tel-Hashomer, Israel
- Department of Medicine, Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Tammy Hod
- Department of Medicine, Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
- Department of Medicine, Renal Transplant Center, the Chaim Sheba Medical Center, Tel-Hashomer, Israel
- Nephrology Department, the Chaim Sheba Medical Center, Tel-Hashomer, Israel
| | - Yehonatan Sharabi
- Department of Internal Medicine D and Hypertension Unit, the Chaim Sheba Medical Center, Tel-Hashomer, Israel
- Department of Medicine, Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Avshalom Leibowitz
- Department of Internal Medicine D and Hypertension Unit, the Chaim Sheba Medical Center, Tel-Hashomer, Israel
- Department of Medicine, Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Ehud Grossman
- Department of Medicine, Adelson School of Medicine, Ariel University, Ariel, Israel
| | - Gadi Shlomai
- Department of Internal Medicine D and Hypertension Unit, the Chaim Sheba Medical Center, Tel-Hashomer, Israel
- Department of Medicine, Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
- Department of Medicine, The Institute of Endocrinology, Diabetes, and Metabolism, the Chaim Sheba Medical Center, Tel-Hashomer, Israel
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Bruedgam D, Adolf C, Schneider H, Schwarzlmueller P, Mueller L, Handgriff L, Bidlingmaier M, Kunz S, Zimmermann P, Deniz S, Williams TA, Beuschlein F, Reincke M, Heinrich DA. Postoperative ACTH-stimulated aldosterone predicts biochemical outcome in primary aldosteronism. Eur J Endocrinol 2023; 189:611-618. [PMID: 38048424 DOI: 10.1093/ejendo/lvad159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 09/29/2023] [Accepted: 11/22/2023] [Indexed: 12/06/2023]
Abstract
OBJECTIVE Primary aldosteronism (PA) is the most common surgically curable cause of hypertension. Unilateral aldosterone-producing adenoma can be treated with adrenalectomy. Clinical and biochemical outcomes are assessed 6-12 months after adrenalectomy according to primary aldosteronism surgical outcome (PASO) consensus criteria. Earlier prediction of biochemical remission would be desirable as it could reduce cumbersome follow-up visits. We hypothesized that postoperative adrenocorticotropic hormone (ACTH) stimulated plasma aldosterone concentrations (PAC) measured shortly after adrenalectomy can predict PASO outcomes. DESIGN Retrospective cohort study. METHODS We analyzed 100 patients of the German Conn's registry who underwent adrenalectomy and postoperative ACTH stimulation tests within the first week after adrenalectomy. Six to twelve months after adrenalectomy we assessed clinical and biochemical outcomes according to PASO criteria. Serum cortisol and PAC were measured by immunoassay at baseline and 30 min after the intravenous ACTH infusion. We used receiver operating characteristics (ROC) curve analysis and matched the parameters to PASO outcomes. RESULTS Eighty-one percent of patients had complete, 13% partial, and 6% absent biochemical remission. Complete clinical remission was observed in 28%. For a cut-off of 58.5 pg/mL, stimulated PAC could predict partial/absent biochemical remission with a high sensitivity (95%) and reasonable specificity (74%). Stimulated PAC's area under the curve (AUC) (0.89; confidence interval (CI) 0.82-0.96) was significantly higher than other investigated parameters. CONCLUSIONS Low postoperative ACTH stimulated PAC was predictive of biochemical remission. If confirmed, this approach could reduce follow-up visits to assess biochemical outcome.
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Affiliation(s)
- Denise Bruedgam
- Medizinische Klinik und Poliklinik IV, LMU Klinikum, 80336 München, Germany
| | - Christian Adolf
- Medizinische Klinik und Poliklinik IV, LMU Klinikum, 80336 München, Germany
| | - Holger Schneider
- Medizinische Klinik und Poliklinik IV, LMU Klinikum, 80336 München, Germany
| | | | - Lisa Mueller
- Medizinische Klinik und Poliklinik IV, LMU Klinikum, 80336 München, Germany
| | - Laura Handgriff
- Medizinische Klinik und Poliklinik IV, LMU Klinikum, 80336 München, Germany
| | | | - Sonja Kunz
- Medizinische Klinik und Poliklinik IV, LMU Klinikum, 80336 München, Germany
| | - Petra Zimmermann
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie, LMU Klinikum, 80336 München, Germany
| | - Sinan Deniz
- Klinik und Poliklinik für Radiologie, LMU Klinikum, 80336 München, Germany
| | - Tracy Ann Williams
- Medizinische Klinik und Poliklinik IV, LMU Klinikum, 80336 München, Germany
| | - Felix Beuschlein
- Medizinische Klinik und Poliklinik IV, LMU Klinikum, 80336 München, Germany
- Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, Universitäts-Spital Zürich (USZ) und Universität Zürich (UZH), Raemistrasse 100, CH-8091 Zürich, Switzerland
| | - Martin Reincke
- Medizinische Klinik und Poliklinik IV, LMU Klinikum, 80336 München, Germany
| | - Daniel A Heinrich
- Medizinische Klinik und Poliklinik IV, LMU Klinikum, 80336 München, Germany
- Hormon- und Stoffwechselzentrum München, Residenzstr. 3, 80333 München, Germany
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Bioletto F, Lopez C, Bollati M, Arata S, Procopio M, Ponzetto F, Beccuti G, Mengozzi G, Ghigo E, Maccario M, Parasiliti-Caprino M. Predictive performance of aldosterone-to-renin ratio in the diagnosis of primary aldosteronism in patients with resistant hypertension. Front Endocrinol (Lausanne) 2023; 14:1145186. [PMID: 37223051 PMCID: PMC10200868 DOI: 10.3389/fendo.2023.1145186] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 04/20/2023] [Indexed: 05/25/2023] Open
Abstract
Background The systematic use of confirmatory tests in the diagnosis of primary aldosteronism (PA) increases costs, risks and complexity to the diagnostic work-up. In light of this, some authors proposed aldosterone-to-renin (ARR) cut-offs and/or integrated flow-charts to avoid this step. Patients with resistant hypertension (RH), however, are characterized by a dysregulated renin-angiotensin-aldosterone system, even in the absence of PA. Thus, it is unclear whether these strategies might be applied with the same diagnostic reliability in the setting of RH. Methods We enrolled 129 consecutive patients diagnosed with RH and no other causes of secondary hypertension. All patients underwent full biochemical assessment for PA, encompassing both basal measurements and a saline infusion test. Results 34/129 patients (26.4%) were diagnosed with PA. ARR alone provided a moderate-to-high accuracy in predicting the diagnosis of PA (AUC=0.908). Among normokalemic patients, the ARR value that maximized the diagnostic accuracy, as identified by the Youden index, was equal to 41.8 (ng/dL)/(ng/mL/h), and was characterized by a sensitivity and a specificity of 100% and 67%, respectively (AUC=0.882); an ARR > 179.6 (ng/dL)/(ng/mL/h) provided a 100% specificity for the diagnosis of PA, but was associated with a very low sensitivity of 20%. Among hypokalemic patients, the ARR value that maximized the diagnostic accuracy, as identified by the Youden index, was equal to 49.2 (ng/dL)/(ng/mL/h), and was characterized by a sensitivity and a specificity of 100% and 83%, respectively (AUC=0.941); an ARR > 104.0 (ng/dL)/(ng/mL/h) provided a 100% specificity for the diagnosis of PA, with a sensitivity of 64%. Conclusions Among normokalemic patients, there was a wide overlap in ARR values between those with PA and those with essential RH; the possibility to skip a confirmatory test should thus be considered with caution in this setting. A better discriminating ability could be seen in the presence of hypokalemia; in this case, ARR alone may be sufficient to skip confirmatory tests in a suitable percentage of patients.
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Affiliation(s)
- Fabio Bioletto
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Chiara Lopez
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Martina Bollati
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Stefano Arata
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Matteo Procopio
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Federico Ponzetto
- Clinical Biochemistry Laboratory, City of Health and Science University Hospital, Turin, Italy
| | - Guglielmo Beccuti
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Giulio Mengozzi
- Clinical Biochemistry Laboratory, City of Health and Science University Hospital, Turin, Italy
| | - Ezio Ghigo
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Mauro Maccario
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Mirko Parasiliti-Caprino
- Division of Endocrinology, Diabetes and Metabolism, Department of Medical Sciences, University of Turin, Turin, Italy
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Leung AA, Symonds CJ, Hundemer GL, Ronksley PE, Lorenzetti DL, Pasieka JL, Harvey A, Kline GA. Performance of Confirmatory Tests for Diagnosing Primary Aldosteronism: a Systematic Review and Meta-Analysis. Hypertension 2022; 79:1835-1844. [PMID: 35652330 PMCID: PMC9278709 DOI: 10.1161/hypertensionaha.122.19377] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Background: Confirmatory tests are recommended for diagnosing primary aldosteronism, but the supporting evidence is unclear. Methods: We searched Medline, EMBASE, and the Cochrane Central Register of Controlled Trials. Studies evaluating any guideline-recommended confirmatory test (ie, saline infusion test, salt loading test, fludrocortisone suppression test, and captopril challenge test), compared with a reference standard were included. The Quality Assessment of Diagnostic Accuracy Studies-2 tool was used to assess the risk of bias. Meta-analyses were conducted using hierarchical summary receiver operating characteristic models. Results: Fifty-five studies were included, comprising 26 studies (3654 participants) for the recumbent saline infusion test, 4 studies (633 participants) for the seated saline infusion test, 2 studies (99 participants) for the salt loading test, 7 studies (386 participants) for the fludrocortisone suppression test, and 25 studies (2585 participants) for the captopril challenge test. Risk of bias was high, affecting more than half of studies, and across all domains. Studies with case-control sampling overestimated accuracy by 7-fold (relative diagnostic odds ratio, 7.26 [95% CI, 2.46–21.43]) and partial verification or use of inconsistent reference standards overestimated accuracy by 5-fold (5.12 [95% CI, 1.48–17.77]). There were large variations in how confirmatory tests were conducted, interpreted, and verified. Under most scenarios, confirmatory testing resulted in an excess of missed cases. The certainty of evidence underlying each test (Grading of Recommendations, Assessment, Development, and Evaluations) was very low. Conclusions: Recommendations for confirmatory testing in patients with abnormal screening tests and high probability features of primary aldosteronism are based on very low-quality evidence and their routine use should be reconsidered.
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Affiliation(s)
- Alexander A Leung
- Division of Endocrinology and Metabolism, Department of Medicine (A.A.L., C.J.S., G.A.K.), University of Calgary, AB.,Department of Community Health Sciences (A.A.L., P.E.R., D.L.L.), University of Calgary, AB
| | - Christopher J Symonds
- Division of Endocrinology and Metabolism, Department of Medicine (A.A.L., C.J.S., G.A.K.), University of Calgary, AB
| | - Gregory L Hundemer
- Division of Nephrology, Department of Medicine and the Ottawa Hospital Research Institute, University of Ottawa, ON (G.L.H.)
| | - Paul E Ronksley
- Department of Community Health Sciences (A.A.L., P.E.R., D.L.L.), University of Calgary, AB
| | - Diane L Lorenzetti
- Department of Community Health Sciences (A.A.L., P.E.R., D.L.L.), University of Calgary, AB
| | - Janice L Pasieka
- Department of Surgery (J.L.P., A.H.), University of Calgary, AB.,Department of Oncology (J.L.P., A.H.), University of Calgary, AB
| | - Adrian Harvey
- Department of Surgery (J.L.P., A.H.), University of Calgary, AB.,Department of Oncology (J.L.P., A.H.), University of Calgary, AB
| | - Gregory A Kline
- Division of Endocrinology and Metabolism, Department of Medicine (A.A.L., C.J.S., G.A.K.), University of Calgary, AB
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[Conn's syndrome-Frequent and still too rarely diagnosed to underdiagnosed]. Internist (Berl) 2021; 63:25-33. [PMID: 34846549 DOI: 10.1007/s00108-021-01208-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/27/2021] [Indexed: 10/19/2022]
Abstract
Conn's syndrome represents the most common cause of endocrine hypertension and is associated with an increased cardiovascular risk, a series of comorbidities (including type 2 diabetes mellitus) and with their frequent occurrence. Therefore, a correct and rapid diagnosis is of essential importance. Measurement of the aldosterone-renin ratio is used as a first screening test for primary aldosteronism. This should ideally be evaluated under optimized conditions (e.g. at rest), after adjustment of the blood pressure medication and with an equilibrated potassium balance. In cases of elevated aldosterone to renin ratio, further confirmatory testing as well as imaging of the adrenal glands is needed. After confirmation of Conn's syndrome a differentiation between a unilateral and bilateral adrenal disease is necessary for further treatment planning. The current gold standard is still selective adrenal vein catheterization. Promising alternatives to an adrenal vein catheter, such as functional imaging techniques and measurement of steroid profiles are currently being investigated in clinical trials. In cases of lateralization of aldosterone production, unilateral laparoscopic adrenalectomy of the affected side is the treatment of choice. In contrast, patients with bilateral disease or patients with contraindications for adrenalectomy should receive life-long treatment with mineralocorticoid receptor antagonists.
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Chen S, Liu H, Luo P, Yu Y. Computed tomography combined with confirmatory tests for the diagnosis of aldosterone-producing adenoma. Endocr J 2021; 68:299-306. [PMID: 33100281 DOI: 10.1507/endocrj.ej20-0395] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Primary aldosteronism (PA) is the most common cause of secondary hypertension, and a simpler non-invasive method for identification of aldosterone-producing adenoma (APA) is required to improve the standard of medical treatment for PA patients. We retrospectively analyzed the clinical data of hypertensive patients with an aldosterone/renin ratio (ARR) ≥30 (ng/dL)/(ng/mL/h), and surgical and/or adrenal venous sampling (AVS) results served as the gold standard for APA diagnosis. The study aimed to determine whether positive CCT and SIT results plus a unilateral adrenal nodule found by CT allow unambiguous identification of an APA with high diagnostic specificity. Clinical data from 71 APA and 47 non-APA patients were collected, and logistic regression analysis was performed to construct models. Receiver operating characteristic (ROC) curves were used to analyze the efficacy of diagnostic tests. The areas under the ROC curves (AUCs) were similar between the post-SIT plasma aldosterone concentration (PAC) and post-CCT PAC (p > 0.05). The optimal post-SIT and post-CCT PAC cutoff values were 17.2 and 21.2 ng/dL, respectively. Positive CT findings combined with a post-SIT PAC >17.2 ng/dL or post-CCT PAC >21.2 ng/dL provided specificities of 97.8% and 95.7% for predicting APA, respectively. Logistic diagnostic models 1 (M1, CT finding + post-SIT PAC) and 2 (M2, CT finding + post-CCT PAC) were built, which showed equivalent diagnostic value (AUC = 0.959 and 0.932, respectively) (p > 0.05). The models combining CT findings with post-SIT PACs or post-CCT PACs represent an easier method to distinguish APA patients from other hypertensive patients with positive upright ARR results, especially in primary care where AVS may be unavailable.
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Affiliation(s)
- Shihan Chen
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Hui Liu
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Panyu Luo
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Yerong Yu
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
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Burrello J, Amongero M, Buffolo F, Sconfienza E, Forestiero V, Burrello A, Adolf C, Handgriff L, Reincke M, Veglio F, Williams TA, Monticone S, Mulatero P. Development of a Prediction Score to Avoid Confirmatory Testing in Patients With Suspected Primary Aldosteronism. J Clin Endocrinol Metab 2021; 106:e1708-e1716. [PMID: 33377974 DOI: 10.1210/clinem/dgaa974] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Indexed: 11/19/2022]
Abstract
CONTEXT The diagnostic work-up of primary aldosteronism (PA) includes screening and confirmation steps. Case confirmation is time-consuming, expensive, and there is no consensus on tests and thresholds to be used. Diagnostic algorithms to avoid confirmatory testing may be useful for the management of patients with PA. OBJECTIVE Development and validation of diagnostic models to confirm or exclude PA diagnosis in patients with a positive screening test. DESIGN, PATIENTS, AND SETTING We evaluated 1024 patients who underwent confirmatory testing for PA. The diagnostic models were developed in a training cohort (n = 522), and then tested on an internal validation cohort (n = 174) and on an independent external prospective cohort (n = 328). MAIN OUTCOME MEASURE Different diagnostic models and a 16-point score were developed by machine learning and regression analysis to discriminate patients with a confirmed diagnosis of PA. RESULTS Male sex, antihypertensive medication, plasma renin activity, aldosterone, potassium levels, and the presence of organ damage were associated with a confirmed diagnosis of PA. Machine learning-based models displayed an accuracy of 72.9%-83.9%. The Primary Aldosteronism Confirmatory Testing (PACT) score correctly classified 84.1% at training and 83.9% or 81.1% at internal and external validation, respectively. A flow chart employing the PACT score to select patients for confirmatory testing correctly managed all patients and resulted in a 22.8% reduction in the number of confirmatory tests. CONCLUSIONS The integration of diagnostic modeling algorithms in clinical practice may improve the management of patients with PA by circumventing unnecessary confirmatory testing.
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Affiliation(s)
- Jacopo Burrello
- Division of Internal Medicine and Hypertension, Department of Medical Sciences, University of Torino, Torino, Italy
| | - Martina Amongero
- Department of Mathematical Sciences G. L. Lagrange, Polytechnic University of Torino, Torino, Italy
| | - Fabrizio Buffolo
- Division of Internal Medicine and Hypertension, Department of Medical Sciences, University of Torino, Torino, Italy
| | - Elisa Sconfienza
- Division of Internal Medicine and Hypertension, Department of Medical Sciences, University of Torino, Torino, Italy
| | - Vittorio Forestiero
- Division of Internal Medicine and Hypertension, Department of Medical Sciences, University of Torino, Torino, Italy
| | - Alessio Burrello
- Department of Electrical, Electronic and Information Engineering "Guglielmo Marconi" (DEI), University of Bologna, Bologna, Italy
| | - Christian Adolf
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Laura Handgriff
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Martin Reincke
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Franco Veglio
- Division of Internal Medicine and Hypertension, Department of Medical Sciences, University of Torino, Torino, Italy
| | - Tracy Ann Williams
- Division of Internal Medicine and Hypertension, Department of Medical Sciences, University of Torino, Torino, Italy
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Silvia Monticone
- Division of Internal Medicine and Hypertension, Department of Medical Sciences, University of Torino, Torino, Italy
| | - Paolo Mulatero
- Division of Internal Medicine and Hypertension, Department of Medical Sciences, University of Torino, Torino, Italy
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Wada N, Miyoshi A, Usubuchi H, Terae S, Shibayama Y, Takahashi B, Baba S, Sugawara H, Obara S. Prediction of unilateral hyperaldosteronism on adrenal vein sampling using captopril challenge test in patients with primary aldosteronism. Endocr J 2021; 68:45-51. [PMID: 32848105 DOI: 10.1507/endocrj.ej20-0329] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Captopril challenge test (CCT) is a simple and safe confirmatory test for primary aldosteronism (PA). We investigated the effectiveness of the indices after captopril administration for prediction of unilateral hyperaldosteronism (UHA) on adrenal vein sampling (AVS). We studied 238 patients with PA who had CCT and successful AVS between July 2007 and December 2019 in Sapporo City General Hospital. Receiver operating characteristic (ROC) curve analysis showed that the diagnostic performance for prediction of UHA on AVS in regard to the reduction rate of plasma aldosterone concentration (PAC) after captopril administration was inferior to aldosterone to renin ratio (ARR) and PAC (area under the ROC curve 0.72 vs. 0.84, 0.72 vs. 0.89, respectively, both p < 0.01). Based on the optimal cut-off values in ARR (897 pg/mL/ng/mL/h, sensitivity 64.6%, specificity 93.0%) and PAC (203 pg/mL, sensitivity 73.9%, specificity 93.0%) after captopril administration, the patients were divided into three groups: (1) both positive, (2) one positive, and (3) both negative. The prevalence of UHA on AVS in the three groups were 90.0%, 52.9%, and 7.3%, respectively. In the first group, 31 of 32 patients with unilateral nodular lesion on CT had an ipsilateral unilateral AVS. In conclusion, the combination of post-captopril ARR and PAC is useful for prediction of laterality diagnosis on AVS. AVS is strongly recommended in patients with both positive or one positive results for the optimal cut-off values of post-captopril ARR and PAC and is weakly recommended in patients with both negative results.
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Affiliation(s)
- Norio Wada
- Department of Diabetes and Endocrinology, Sapporo City General Hospital, Sapporo 060-8604, Japan
| | - Arina Miyoshi
- Department of Diabetes and Endocrinology, Sapporo City General Hospital, Sapporo 060-8604, Japan
| | - Hiroaki Usubuchi
- Department of Radiology, Sapporo City General Hospital, Sapporo 060-8604, Japan
| | - Satoshi Terae
- Department of Radiology, Sapporo City General Hospital, Sapporo 060-8604, Japan
| | - Yui Shibayama
- Department of Rheumatology, Endocrinology and Nephrology, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Bunya Takahashi
- Department of Diagnostic Imaging, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo 060-8648, Japan
| | - Shuhei Baba
- Department of Diabetes and Endocrinology, Sapporo City General Hospital, Sapporo 060-8604, Japan
| | - Hajime Sugawara
- Department of Diabetes and Endocrinology, Sapporo City General Hospital, Sapporo 060-8604, Japan
| | - Shinji Obara
- Department of Diabetes and Endocrinology, Sapporo City General Hospital, Sapporo 060-8604, Japan
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Fukumoto T, Umakoshi H, Ogata M, Yokomoto-Umakoshi M, Matsuda Y, Motoya M, Nagata H, Nakano Y, Iwahashi N, Kaneko H, Wada N, Miyazawa T, Sakamoto R, Ogawa Y. Significance of Discordant Results Between Confirmatory Tests in Diagnosis of Primary Aldosteronism. J Clin Endocrinol Metab 2021; 106:e866-e874. [PMID: 33165595 DOI: 10.1210/clinem/dgaa812] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Indexed: 12/17/2022]
Abstract
CONTEXT Current clinical guidelines recommend confirmation of a positive result in at least one confirmatory test in the diagnosis of primary aldosteronism (PA). Clinical implication of multiple confirmatory tests has not been established, especially when patients show discordant results. OBJECTIVE The aim of the present study was to explore the role of 2 confirmatory tests in subtype diagnosis of PA. DESIGN AND SETTING A retrospective cross-sectional study was conducted at two referral centers. PARTICIPANTS AND METHODS We identified 360 hypertensive patients who underwent both a captopril challenge test (CCT) and a saline infusion test (SIT) and exhibited at least one positive result. Among them, we studied 193 patients with PA whose data were available for subtype diagnosis based on adrenal vein sampling (AVS). MAIN OUTCOME MEASURE The prevalence of bilateral subtype on AVS according to the results of the confirmatory tests was measured. RESULTS Of patients studied, 127 were positive for both CCT and SIT (double-positive), whereas 66 were positive for either CCT or SIT (single-positive) (n = 34 and n = 32, respectively). Altogether, 135 were diagnosed with bilateral subtype on AVS. The single-positive patients had milder clinical features of PA than the double-positive patients. The prevalence of bilateral subtype on AVS was significantly higher in the single-positive patients than in the double-positive patients. (63/66 [95.5%] vs 72/127 [56.7%], P < .01). Several clinical parameters were different between CCT single-positive and SIT single-positive patients. CONCLUSION Patients with discordant results between CCT and SIT have a high probability of bilateral subtype of PA on AVS.
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Affiliation(s)
- Tazuru Fukumoto
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hironobu Umakoshi
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masatoshi Ogata
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Maki Yokomoto-Umakoshi
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yayoi Matsuda
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Misato Motoya
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiromi Nagata
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yui Nakano
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Norifusa Iwahashi
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroki Kaneko
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Norio Wada
- Department of Diabetes and Endocrinology, Sapporo City General Hospital, Sapporo, Japan
| | - Takashi Miyazawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Ryuichi Sakamoto
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshihiro Ogawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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10
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Fuss CT, Brohm K, Kurlbaum M, Hannemann A, Kendl S, Fassnacht M, Deutschbein T, Hahner S, Kroiss M. Confirmatory testing of primary aldosteronism with saline infusion test and LC-MS/MS. Eur J Endocrinol 2021; 184:167-178. [PMID: 33112272 PMCID: PMC7709890 DOI: 10.1530/eje-20-0073] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 10/20/2020] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Saline infusion testing (SIT) for confirmation of primary aldosteronism (PA) is based on impaired aldosterone suppression in PA compared to essential hypertension (EH). In the past, aldosterone was quantified using immunoassays (IA). Liquid chromatography tandem mass spectrometry (LC-MS/MS) is increasingly used in clinical routine. We aimed at a method-specific aldosterone threshold for the diagnosis of PA during SIT and explored the diagnostic utility of steroid panel analysis. DESIGN Retrospective cohort study of 187 paired SIT samples (2009-2018). Diagnosis of PA (n = 103) and EH (n = 84) was established based on clinical routine workup without using LC-MS/MS values. SETTING Tertiary care center. METHODS LC-MS/MS using a commercial steroid panel. Receiver operator characteristics analysis was used to determine method-specific cut-offs using a positive predictive value (PPV) of 90% as criterion. RESULTS Aldosterone measured by IA was on average 31 ng/L higher than with LC-MS/MS. The cut-offs for PA confirmation were 54 ng/L for IA (sensitivity: 95%, 95% CI: 89.0-98.4; specificity: 87%, 95% CI: 77.8-93.3; area under the curve (AUC): 0.955, 95% CI: 0.924-0.986; PPV: 90%, 95% CI: 83.7-93.9) and 69 ng/L for LC-MS/MS (79%, 95% CI: 69.5-86.1; 89%, 95% CI: 80.6-95.0; 0.902, 95% CI: 0.857-0.947; 90%, 95% CI: 82.8-94.4). Other steroids did not improve SIT. CONCLUSIONS Aldosterone quantification with LC-MS/MS and IA yields comparable SIT-cut-offs. Lower AUC for LC-MS/MS is likely due to the spectrum of disease in PA and previous decision making based on IA results. Until data of a prospective trial with clinical endpoints are available, the suggested cut-off can be used in clinical routine.
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Affiliation(s)
- Carmina Teresa Fuss
- Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
| | - Katharina Brohm
- Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
| | - Max Kurlbaum
- Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
- Central Laboratory, Core Unit Clinical Mass Spectrometry, University Hospital Würzburg, Würzburg, Germany
| | - Anke Hannemann
- Institute of Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Sabine Kendl
- Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
| | - Martin Fassnacht
- Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
| | - Timo Deutschbein
- Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
| | - Stefanie Hahner
- Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
| | - Matthias Kroiss
- Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
- Central Laboratory, Core Unit Clinical Mass Spectrometry, University Hospital Würzburg, Würzburg, Germany
- Department of Medicine IV, University Hospital Munich, Ludwig-Maximilians-Universität München, Munich, Germany
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11
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Umakoshi H, Sakamoto R, Matsuda Y, Yokomoto-Umakoshi M, Nagata H, Fukumoto T, Ogata M, Ogawa Y. Role of Aldosterone and Potassium Levels in Sparing Confirmatory Tests in Primary Aldosteronism. J Clin Endocrinol Metab 2020; 105:5609168. [PMID: 31665338 DOI: 10.1210/clinem/dgz148] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 10/11/2019] [Accepted: 10/26/2019] [Indexed: 11/19/2022]
Abstract
CONTEXT The current clinical guidelines suggest that confirmatory tests for primary aldosteronism (PA) may be excluded in some of patients who have elevated plasma aldosterone concentration (PAC) under plasma renin suppression. However, this has low-priority evidence and is under debate in use of serum potassium. OBJECTIVE This study aimed to investigate an appropriate setting for sparing confirmatory tests in PA. DESIGN AND SETTING A retrospective cross-sectional study in a single referral center. PARTICIPANTS This study included 327 patients who had hypertension under plasma renin suppression and underwent the captopril challenge test (CCT) between January 2007 and April 2019. CCT results were used to diagnose PA. MAIN OUTCOME MEASURE Diagnostic value of PAC and serum potassium in confirmation of PA. RESULTS Of the studied patients, 252 of 327 (77%) were diagnosed with PA. All 61 patients with PAC > 30 ng/dL were diagnosed with PA. In patients with PAC between 20 and 30 ng/dL, 44 of 55 (80%) were diagnosed with PA, while all 26 with PAC between 20 to 30 ng/dL who had spontaneous hypokalemia were diagnosed with PA. The proportion of unilateral PA determined by adrenal vein sampling (AVS) was higher in patients who had PAC > 30 ng/dL or those with spontaneous hypokalemia who had PAC between 20 and 30 ng/dL than those who did not meet the criteria (76% vs. 17%, P < .001). CONCLUSION Confirmatory tests in PA could be spared in patients who have typical features of PA and these patients had a high probability of unilateral PA on AVS.
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Affiliation(s)
- Hironobu Umakoshi
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Ryuichi Sakamoto
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yayoi Matsuda
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Maki Yokomoto-Umakoshi
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiromi Nagata
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tazuru Fukumoto
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masatoshi Ogata
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshihiro Ogawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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