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Maschio C, Weinberg J, Keil M, Saidkhodjaeva L, Chittiboina P, Chang R, Stratakis CA, Tatsi C. False Negative Inferior Petrosal Sinus Sampling in Young-Onset Cushing Disease: What Happens Next. Horm Res Paediatr 2023:000533338. [PMID: 38096802 PMCID: PMC11176263 DOI: 10.1159/000533338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 07/01/2023] [Indexed: 06/15/2024] Open
Abstract
INTRODUCTION False negative results during inferior petrosal sinus sampling (IPSS) may complicate the diagnostic evaluation of patients with ACTH-dependent Cushing syndrome (CS). The management of these patients can be confusing for clinicians and lead to delayed management. METHODS We studied patients with young-onset (<21yo) CD who underwent IPSS during their diagnostic evaluation. For all patients, diagnosis of CD was eventually confirmed based on histologic evaluation of a resected pituitary tumor or remission after transsphenoidal surgery (TSS). RESULTS We recorded a rare incidence of false negative IPSS results in 5 out of the 142 IPSS procedures (3.5%), performed in 4 unique patients. Patients with negative IPSS did not differ in demographic (age and sex) or biochemical (diurnal ACTH/cortisol or 24hour urinary free cortisol) data from the remaining. Additional workup was performed in three of the four patients including evaluation for ectopic sources of CS and repeat IPSS. Two of these patients also received medical treatment for suppression of cortisol production. One patient decided to proceed with pituitary exploration without additional evaluation. All patients finally underwent surgery and achieved remission. DISCUSSION/CONCLUSION In patients with CD, IPSS may rarely lead to false negative results. Management of these patients usually includes screening for ectopic sources of ACTH/CRH secretion, repeating IPSS if ectopic workup is negative, and considering medical management until final diagnosis of the source of hypercortisolism is made.
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Affiliation(s)
- Cristina Maschio
- Unit on Hypothalamic and Pituitary Disorders, Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Jessica Weinberg
- Unit on Hypothalamic and Pituitary Disorders, Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Meg Keil
- Office of the Clinical Director, Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Lola Saidkhodjaeva
- Unit on Hypothalamic and Pituitary Disorders, Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
| | - Prashant Chittiboina
- Neurosurgery Unit for Pituitary and Inheritable Diseases, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health, Bethesda, Maryland, USA
| | - Richard Chang
- Endocrine and Venous Services Section, Interventional Radiology Section, Clinical Center (CC), National Institutes of Health, Bethesda, Maryland, 20892, USA
| | - Constantine A. Stratakis
- Unit on Hypothalamic and Pituitary Disorders, Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
- Human Genetics & Precision Medicine, IMBB, FORTH, ELPEN Research Institute & Medical Genetics, H. Dunant Hospital, Athens, Greece
| | - Christina Tatsi
- Unit on Hypothalamic and Pituitary Disorders, Eunice Kennedy Shriver National Institute of Child Health & Human Development (NICHD), National Institutes of Health (NIH), Bethesda, MD, 20892, USA
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Augustin AM, Detomas M, Hartung V, Thurner A, Tröger V, Deutschbein T, Kickuth R. Bilateral inferior petrosal sinus sampling: Procedural data from a German single-center study. ROFO-FORTSCHR RONTG 2023; 195:1009-1017. [PMID: 37224864 DOI: 10.1055/a-2083-9942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
PURPOSE To assess radiation exposure and diagnostic performance of bilateral inferior petrosal sinus sampling for the distinction of pituitary and ectopic adrenocorticotropin-dependent Cushing's syndrome. MATERIALS AND METHODS Procedural data of bilateral inferior petrosal sinus procedures were retrospectively evaluated. The analysis included the patients' clinical and demographic data, procedural radiation exposure, and complication rates, sampling results, clinical course of the patients, and calculation of diagnostic performance data. RESULTS The cases of 46 patients diagnosed with adrenocorticotropin-dependent Cushing's syndrome were evaluated. Bilateral inferior petrosal sinus sampling was successfully performed in 97.8 % of the cases. The overall median procedure-related fluoroscopy time was 7.8 min. (range 3.2-36.2 min.), and the median procedural dose area product was 11.9 Gy*cm2 (range 2.1-73.7 Gy*cm2). Radiation doses due to digital subtraction angiography series for visualization of the inferior petrosal sinus were 3.6 Gy*cm2 (range 1.0-18.1 Gy*cm2). Radiation doses due to fluoroscopy had a higher impact on the overall radiation exposure and were significantly influenced by the patients' habitus. The sensitivity, specificity, and positive and negative predictive values were 84 %, 100 %, 100 %, and 72 % before stimulation with corticotropin-releasing hormone, and 97 %, 100 %, 100 %, and 93 % after stimulation. Concordance between magnetic resonance imaging studies and bilateral inferior petrosal sinus sampling results was only found in 35.6 % of the cases. The periprocedural complication rate was 2.2 %, with one patient experiencing vasovagal syncope during catheterization. CONCLUSION Bilateral inferior petrosal sinus sampling is a safe procedure with high technical success rates und excellent diagnostic performance. The procedure-related radiation exposure shows large variations and depends on the complexity of cannulation as well as the patients' habitus. Fluoroscopy accounted for the largest proportion of radiation exposure. Acquisition of digital subtraction angiography series for the verification of correct catheter placement appears justified. KEY POINTS · Bilateral inferior petrosal sinus sampling with CRH stimulation provides high diagnostic performance in the distinction of pituitary and ectopic Cushing's syndrome.. · The associated radiation exposure is not negligible and is significantly influenced by the use of fluoroscopy and the patients' habitus.. · Digital subtraction angiography contributes less to the overall radiation dose and appears justified for the verification of correct catheter placement.. CITATION FORMAT · Augustin A, Detomas M, Hartung V et al. Bilateral inferior petrosal sinus sampling: Procedural data from a German single-center study. Fortschr Röntgenstr 2023; 195: 1009 - 1017.
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Affiliation(s)
- Anne Marie Augustin
- Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Germany
| | - Mario Detomas
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital Würzburg, Germany
| | - Viktor Hartung
- Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Germany
| | - Annette Thurner
- Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Germany
| | - Viola Tröger
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital Würzburg, Germany
| | - Timo Deutschbein
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital Würzburg, Germany
- Medicover Oldenburg MVZ, Medicover Oldenburg, Germany
| | - Ralph Kickuth
- Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Germany
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de Almeida TS, Rodrigues TDC, Costenaro F, Scaffaro LA, Farenzena M, Gastaldo F, Czepielewski MA. Enhancing Cushing's disease diagnosis: exploring the impact of desmopressin on ACTH gradient during BIPSS. Front Endocrinol (Lausanne) 2023; 14:1224001. [PMID: 37600715 PMCID: PMC10436086 DOI: 10.3389/fendo.2023.1224001] [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: 05/17/2023] [Accepted: 07/11/2023] [Indexed: 08/22/2023] Open
Abstract
Introduction The differential diagnosis between Cushing's disease (CD) and ectopic ACTH syndrome (EAS) is complex, and bilateral inferior petrosal sinus sampling (BIPSS) is considered the gold-standard test. However, BIPSS with corticotropin-releasing hormone (CRH) stimulation is rarely available. Objective This retrospective cohort study aimed to assess the accuracy of the inferior petrosal sinus to peripheral ACTH gradient (IPS:P) before and after desmopressin stimulation for the differential diagnosis of ACTH-dependent Cushing's syndrome (CS), applying different cutoff values. Methods A total of 50 patients (48 with CD and 2 with EAS) who underwent BIPSS were included in this study. The sensitivity and specificity of IPS:P in BIPSS before and after desmopressin stimulation were evaluated. Various cutoff values for IPS:P were examined to determine their diagnostic accuracy. Results Using the traditional IPS:P cutoff, the sensitivity was 85.1% before stimulation, 89.6% after stimulation, and a combined sensitivity of 91.7%. Applying cutoff values of IPS:P >1.4 before and >2.8 after stimulation, the sensitivity was 87.2% and 89.6%, respectively, with a combined sensitivity of 91.7%. Receiver operating characteristic (ROC) curve analysis determined optimal cutoff values of 1.2 before stimulation and 1.57 after stimulation, resulting in a sensitivity of 93.6% and 93.8%, respectively, with a combined sensitivity of 97.9%. Specificity remained at 100% throughout all analyses. Among the 43 patients who responded positively to stimulation, 42 (97.7%) did so within the first three minutes, and all 43 (100%) did so within the first five minutes. None of the assessed clinical variables predicted the ACTH response to stimulation in BIPSS with statistical significance. Discussion ACTH stimulation with desmopressin during BIPSS improves the accuracy of IPS:P, making it a valuable tool for investigating ACTH-dependent Cushing's syndrome. Considering the low risk of complications, we recommend the use of desmopressin stimulation during BIPSS for the differential diagnosis of ACTH-dependent CS.
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Affiliation(s)
- Tobias Skrebsky de Almeida
- Postgraduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
- Endocrinology Division, Hospital Moinhos de Vento, Porto Alegre, Brazil
| | - Ticiana da Costa Rodrigues
- Postgraduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
- Endocrinology Division, Hospital Moinhos de Vento, Porto Alegre, Brazil
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Fabíola Costenaro
- Postgraduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
- Endocrinology Division, Hospital Moinhos de Vento, Porto Alegre, Brazil
| | - Leandro Armani Scaffaro
- Radiology Division, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Maurício Farenzena
- Radiology Division, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Fernando Gastaldo
- Department of Radiology, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Mauro Antônio Czepielewski
- Postgraduate Program in Medical Sciences: Endocrinology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
- Endocrinology Division, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
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Wright K, van Rossum EFC, Zan E, Werner N, Harris A, Feelders RA, Agrawal N. Emerging diagnostic methods and imaging modalities in cushing's syndrome. Front Endocrinol (Lausanne) 2023; 14:1230447. [PMID: 37560300 PMCID: PMC10407789 DOI: 10.3389/fendo.2023.1230447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 07/05/2023] [Indexed: 08/11/2023] Open
Abstract
Endogenous Cushing's syndrome (CS) is a rare disease characterized by prolonged glucocorticoid excess. Timely diagnosis is critical to allow prompt treatment and limit long-term disease morbidity and risk for mortality. Traditional biochemical diagnostic modalities each have limitations and sensitivities and specificities that vary significantly with diagnostic cutoff values. Biochemical evaluation is particularly complex in patients whose hypercortisolemia fluctuates daily, often requiring repetition of tests to confirm or exclude disease, and when delineating CS from physiologic, nonneoplastic states of hypercortisolism. Lastly, traditional pituitary MRI may be negative in up to 60% of patients with adrenocorticotropic hormone (ACTH)-secreting pituitary adenomas (termed "Cushing's disease" [CD]) whereas false positive pituitary MRI findings may exist in patients with ectopic ACTH secretion. Thus, differentiating CD from ectopic ACTH secretion may necessitate dynamic testing or even invasive procedures such as bilateral inferior petrosal sinus sampling. Newer methods may relieve some of the diagnostic uncertainty in CS, providing a more definitive diagnosis prior to subjecting patients to additional imaging or invasive procedures. For example, a novel method of cortisol measurement in patients with CS is scalp hair analysis, a non-invasive method yielding cortisol and cortisone values representing long-term glucocorticoid exposure of the past months. Hair cortisol and cortisone have both shown to differentiate between CS patients and controls with a high sensitivity and specificity. Moreover, advances in imaging techniques may enhance detection of ACTH-secreting pituitary adenomas. While conventional pituitary MRI may fail to identify microadenomas in patients with CD, high-resolution 3T-MRI with 3D-spoiled gradient-echo sequence has thinner sections and superior soft-tissue contrast that can detect adenomas as small as 2 mm. Similarly, functional imaging may improve the identification of ACTH-secreting adenomas noninvasively; Gallium-68-tagged corticotropin-releasing hormone (CRH) combined with PET-CT can be used to detect CRH receptors, which are upregulated on corticotroph adenomas. This technique can delineate functionality of adenomas in patients with CD from patients with ectopic ACTH secretion and false positive pituitary lesions on MRI. Here, we review emerging methods and imaging modalities for the diagnosis of CS, discussing their diagnostic accuracy, strengths and limitations, and applicability to clinical practice.
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Affiliation(s)
- Kyla Wright
- New York University (NYU) Grossman School of Medicine, New York, NY, United States
| | - Elisabeth F. C. van Rossum
- Department of Internal Medicine, Division of Endocrinology, Erasmus Medical College (MC), University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Elcin Zan
- Department of Radiology, Weill Cornell Medicine, New York, NY, United States
| | - Nicole Werner
- New York University (NYU) Grossman School of Medicine, New York, NY, United States
| | - Alan Harris
- Department of Medicine, Division of Endocrinology, New York University (NYU) Langone Medical Center, New York, NY, United States
| | - Richard A. Feelders
- Department of Internal Medicine, Division of Endocrinology, Erasmus Medical College (MC), University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Nidhi Agrawal
- Department of Medicine, Division of Endocrinology, New York University (NYU) Langone Medical Center, New York, NY, United States
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Nowak E, Vogel F, Albani A, Braun L, Rubinstein G, Zopp S, Ritzel K, Beuschlein F, Theodoropoulou M, Reincke M. Diagnostic challenges in cyclic Cushing's syndrome: a systematic review. Lancet Diabetes Endocrinol 2023:S2213-8587(23)00150-X. [PMID: 37429301 DOI: 10.1016/s2213-8587(23)00150-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/12/2023] [Accepted: 05/12/2023] [Indexed: 07/12/2023]
Abstract
Cyclic Cushing's syndrome is a subentity of Cushing's syndrome in which phases of biochemical hypercortisolism (peaks) are followed by spontaneous periods of physiological or even hypocortisolaemic cortisol secretion (troughs). To identify common features of cyclic Cushing's syndrome, we systematically reviewed single case reports and case series in MEDLINE from database inception to Oct 10, 2022, and identified 707 articles, of which 149 articles were assessed for eligibility and 118 articles (covering 212 cases) were included in the analysis. Pituitary tumours accounted for 67% of cases of cyclic Cushing's syndrome (n=143), ectopic tumours for 17% (n=36), and adrenal tumours for 11% (n=23). Occult tumours accounted for 2% of cases (n=4), and 3% of cases were unclassified (n=6). We compared the clinical symptoms and comorbidities of patients with cyclic Cushing's syndrome with those of patients with non-cyclic Cushing's syndrome and observed no major difference. In adrenocorticotropic hormone (ACTH)-dependent cyclic Cushing's syndrome, bilateral inferior petrosal sinus sampling had a positive (ie, true pituitary) and negative (ie, true ectopic) predictive value of 100% when performed during periods of hypercortisolism, versus a positive predictive value of 73% and a negative predictive value of 86% when performed, irrespective of cortisolaemic status. Overall, 6% of patients (n=12) with cyclic Cushing's syndrome had unnecessary surgery due to misclassification. Remission rates were significantly lower and the time to remission significantly longer in patients with cyclic Cushing's syndrome compared with patients with non-cyclic Cushing's syndrome (p<0·001). Variations in biochemical test results due to unpredictable cycle duration and frequency might cause diagnostic challenges resulting in misdiagnoses and missed diagnoses.
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Affiliation(s)
- Elisabeth Nowak
- Department of Medicine IV, LMU University Hospital, LMU Munich, Munich, Germany.
| | - Frederick Vogel
- Department of Medicine IV, LMU University Hospital, LMU Munich, Munich, Germany
| | - Adriana Albani
- Department of Medicine IV, LMU University Hospital, LMU Munich, Munich, Germany
| | - Leah Braun
- Department of Medicine IV, LMU University Hospital, LMU Munich, Munich, Germany
| | - German Rubinstein
- Department of Medicine IV, LMU University Hospital, LMU Munich, Munich, Germany
| | - Stephanie Zopp
- Department of Medicine IV, LMU University Hospital, LMU Munich, Munich, Germany
| | - Katrin Ritzel
- Department of Medicine IV, LMU University Hospital, LMU Munich, Munich, Germany
| | - Felix Beuschlein
- Department of Medicine IV, LMU University Hospital, LMU Munich, Munich, Germany; Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital Zürich, Zürich, Switzerland
| | | | - Martin Reincke
- Department of Medicine IV, LMU University Hospital, LMU Munich, Munich, Germany.
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Requejo F, Teplisky D, Dutra MLG, Mouratian DM, Kikano R, Nguyen TN, Abdalkader M. Pediatric Interventional Neuroradiology. Semin Neurol 2023; 43:408-418. [PMID: 37536373 DOI: 10.1055/s-0043-1771511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Pediatric neurovascular disorders can lead to substantial mortality and morbidity if not diagnosed early and adequately managed. Children with neurovascular diseases cannot be treated as small adults as the vascular and central nervous system anatomy, physiology, and pathologies in children differ greatly from those of adults. In addition, some neurovascular pathologies are seen exclusively in children such as aneurysmal malformation of the vein of Galen, pial fistulas, and dural fistulas in the context of dural sinus disease. In this review, we aim to present an overview of the common pediatric neurovascular diseases along with their endovascular management.
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Affiliation(s)
- Flavio Requejo
- Department of Pediatric Interventional Neuroradiology, Hospital de Pediatría Prof. Dr. Juan P Garrahan, Buenos Aires, Argentina
| | - Dario Teplisky
- Department of Pediatric Interventional Radiology, Vascular Anomalies Interdisciplinary Group, Hospital de Pediatría Prof. Dr. Juan P Garrahan, Buenos Aires, Argentina
| | - María Laura González Dutra
- Department of Pediatric Interventional Neuroradiology, Hospital de Pediatría Prof. Dr. Juan P Garrahan, Buenos Aires, Argentina
| | | | - Raghid Kikano
- Department of Radiology, Lebanese American University-Gilbert and Rose Mary Chagoury School of Medicine, Beirut, Lebanon
- Department of Radiology, CISS de l'Abitibi-Temiscamingues, Québec, Canada
| | - Thanh N Nguyen
- Department of Neurology, Neurosurgery and Radiology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts
| | - Mohamad Abdalkader
- Department of Radiology, Boston University Chobanian and Avedisian School of Medicine, Boston, Massachusetts
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Savas M, Mehta S, Agrawal N, van Rossum EFC, Feelders RA. Approach to the Patient: Diagnosis of Cushing Syndrome. J Clin Endocrinol Metab 2022; 107:3162-3174. [PMID: 36036941 PMCID: PMC9681610 DOI: 10.1210/clinem/dgac492] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Indexed: 12/27/2022]
Abstract
Cushing syndrome results from supraphysiological exposure to glucocorticoids and is associated with significant morbidity and mortality. The pathogenesis includes administration of corticosteroids (exogenous Cushing syndrome) or autonomous cortisol overproduction, whether or not ACTH-dependent (endogenous Cushing syndrome). An early diagnosis of Cushing syndrome is warranted; however, in clinical practice, it is very challenging partly because of resemblance with other common conditions (ie, pseudo-Cushing syndrome). Initial workup should start with excluding local and systemic corticosteroid use. First-line screening tests including the 1-mg dexamethasone suppression test, 24-hour urinary free cortisol excretion, and late-night salivary cortisol measurement should be performed to screen for endogenous Cushing syndrome. Scalp-hair cortisol/cortisone analysis helps in the assessment of long-term glucocorticoid exposure as well as in detection of transient periods of hypercortisolism as observed in cyclical Cushing syndrome. Interpretation of results can be difficult because of individual patient characteristics and hence requires awareness of test limitations. Once endogenous Cushing syndrome is established, measurement of plasma ACTH concentrations differentiates between ACTH-dependent (80%-85%) or ACTH-independent (15%-20%) causes. Further assessment with different imaging modalities and dynamic biochemical testing including bilateral inferior petrosal sinus sampling helps further pinpoint the cause of Cushing's syndrome. In this issue of "Approach to the patient," the diagnostic workup of Cushing syndrome is discussed with answering the questions when to screen, how to screen, and how to differentiate the different causes. In this respect, the latest developments in biochemical and imaging techniques are discussed as well.
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Affiliation(s)
| | | | - Nidhi Agrawal
- Division of Endocrinology, NYU Langone Medical Center/ Bellevue Hospital Center, New York, NY
| | - Elisabeth F C van Rossum
- Correspondence: Elisabeth F.C. van Rossum, MD, PhD, Medicine, Erasmus MC, University Medical Center Rotterdam, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands.
| | - Richard A Feelders
- Department of Internal Medicine, Division of Endocrinology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
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Lyu X, Zhang D, Pan H, Zhu H, Chen S, Lu L. A noninvasive scoring model for the differential diagnosis of ACTH-dependent Cushing's syndrome: a retrospective analysis of 311 patients based on easy-to-use parameters. Endocrine 2022; 78:114-122. [PMID: 35925471 DOI: 10.1007/s12020-022-03081-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 05/16/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The differential diagnosis of ACTH-dependent Cushing's disease (CS) is challenging. The gold standard approach bilateral inferior petrosal sinus sampling (BIPSS) is expensive and invasive, while other noninvasive tests, like the high-dose dexamethasone suppression test (HDDST), provide unsatisfactory diagnostic accuracy. This study aimed to find a new noninvasive practical approach with higher diagnostic accuracy to differently diagnose ACTH-dependent CS, which can be used in centers where BIPSS cannot be applied. METHODS 264 Cushing's disease (CD) patients and 47 ectopic ACTH secretion syndrome (EAS) patients were analyzed in this single-center retrospective study (2011-2021). The multivariate logistic model was used to construct the scoring model. RESULTS Female (adjusted OR 3.030, 95%CI 1.229-7.471), hypokalemia (0.209, 0.076-0.576), ACTH (0.988, 0.982-0.994), MRI pituitary lesion positive (8.671, 3.521-21.352), and HDDST positive (2.768, 1.139-6.726) have a strong association with the differential diagnosis of ACTH-dependent CS and were included in the final multivariable logistic regression model. A -14-to-14-point noninvasive scoring model was built on the model. The AUC of the noninvasive scoring model was 0.915 (95% CI 0.869-0.960), significantly higher than the AUC of HDDST (0.756, 95% CI 0.685-0.825, P = 0.004). The optimal cutoff of the model was ≥0 to diagnose CD. The sensitivity of the noninvasive scoring model was 91.3% (95% CI 87.3%-94.1%), and the specificity was 80.9% (95% CI 67.5%-89.6%). When the model's sensitivity was 100.0%, the cutoff was ≥ -10 with a specificity of 19.2%; when the model's specificity was 100.0%, the cutoff was ≥ 13 with a sensitivity of 22.7%. CONCLUSIONS We developed a noninvasive scoring model to distinguish CD and EAS in ACTH-dependent CS patients with higher diagnostic utility than HDDST in the same cohort. The noninvasive scoring model might be applied in areas where BIPSS is unavailable, the CRH is hard to obtain, or the desmopressin stimulation is not widely applied. It also provided a triage tool for selecting patients that might benefit the most from a further BIPSS test.
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Affiliation(s)
- Xiaohong Lyu
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, 100730, Beijing, China
- Eight-year Program of Clinical Medicine, Peking Union Medical College, 100730, Beijing, China
| | - Dingyue Zhang
- Eight-year Program of Clinical Medicine, Peking Union Medical College, 100730, Beijing, China
| | - Hui Pan
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, 100730, Beijing, China
| | - Huijuan Zhu
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, 100730, Beijing, China
| | - Shi Chen
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, 100730, Beijing, China.
| | - Lin Lu
- Key Laboratory of Endocrinology of National Health Commission, Department of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, 100730, Beijing, China.
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Balomenaki M, Margaritopoulos D, Vassiliadi DA, Tsagarakis S. Diagnostic workup of Cushing's syndrome. J Neuroendocrinol 2022; 34:e13111. [PMID: 35979805 DOI: 10.1111/jne.13111] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 02/19/2022] [Accepted: 02/21/2022] [Indexed: 11/29/2022]
Abstract
Cushing's syndrome (CS) is a rare but detrimental endocrine disorder. Early diagnosis and prompt treatment are essential since the duration of hypercortisolism has an adverse impact on the extent of comorbidities and overall survival. The diagnostic approach involves a stepwise process that includes (1) screening and confirming the diagnosis and (2) establishing the aetiology of CS. The tests currently used to confirm the diagnosis of CS include urinary free cortisol measurements, the dexamethasone suppression test and late- night salivary cortisol or midnight serum cortisol measurements. None of these tests are ideal; all have pitfalls and require careful interpretation. Following confirmation of CS, measurement of ACTH discriminates between ACTH-dependent and non-ACTH dependent causes of CS. Adrenal imaging provides clues for the aetiology of non-ACTH dependent forms. Differentiation between the ACTH-dependent forms that involve pituitary corticotroph adenomas and ectopic ACTH sources is more complex and include pituitary MRI imaging, the high dose dexamethasone suppression test, the CRH test, bilateral inferior petrosal sinus sampling and, when required imaging modalities to detect ectopic ACTH secreting lesions. This review, which is part of a special issue on "Update of Cushing's syndrome: 100 years after Minnie G" will provide an update on our current diagnostic workup for the confirmation and differential diagnosis of CS.
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Affiliation(s)
- Maria Balomenaki
- Department of Endocrinology and Diabetes, Evangelismos Hospital, Athens, Greece
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