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Fuld S, Constantinescu G, Pamporaki C, Peitzsch M, Schulze M, Yang J, Müller L, Prejbisz A, Januszewicz A, Remde H, Kürzinger L, Dischinger U, Ernst M, Gruber S, Reincke M, Beuschlein F, Lenders JWM, Eisenhofer G. Screening for Primary Aldosteronism by Mass Spectrometry Versus Immunoassay Measurements of Aldosterone: A Prospective Within-Patient Study. J Appl Lab Med 2024:jfae017. [PMID: 38532521 DOI: 10.1093/jalm/jfae017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 01/18/2024] [Indexed: 03/28/2024]
Abstract
BACKGROUND Measurements of aldosterone by mass spectrometry are more accurate and less prone to interferences than immunoassay measurements, and may produce a more accurate aldosterone:renin ratio (ARR) when screening for primary aldosteronism (PA). METHODS Differences in diagnostic performance of the ARR using mass spectrometry vs immunoassay measurements of aldosterone were examined in 710 patients screened for PA. PA was confirmed in 153 patients and excluded in 451 others. Disease classifications were not achieved in 106 patients. Areas under receiver-operating characteristic curves (AUROC) and other measures were used to compare diagnostic performance. RESULTS Mass spectrometry-based measurements yielded lower plasma aldosterone concentrations than immunoassay measurements. For the ARR based on immunoassay measurements of aldosterone, AUROCs were slightly lower (P = 0.018) than those using mass spectrometry measurements (0.895 vs 0.906). The cutoff for the ARR to reach a sensitivity of 95% was 30 and 21.5 pmol/mU by respective immunoassay and mass spectrometry-based measurements, which corresponded to specificities of 57% for both. With data restricted to patients with unilateral PA, diagnostic sensitivities of 94% with specificities >81% could be achieved at cutoffs of 61 and 52 pmol/mU for respective immunoassay and mass spectrometry measurements. CONCLUSIONS Mass spectrometry-based measurements of aldosterone for the ARR provide no clear diagnostic advantage over immunoassay-based measurements. Both approaches offer limited diagnostic accuracy for the ARR as a screening test. One solution is to employ the higher cutoffs to triage patients likely to have unilateral PA for further tests and possible adrenalectomy, while using the lower cutoffs to identify others for targeted medical therapy.German Clinical Trials Register ID: DRKS00017084.
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Affiliation(s)
- Sybille Fuld
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Georgiana Constantinescu
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Christina Pamporaki
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Mirko Peitzsch
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Manuel Schulze
- Center for Interdisciplinary Digital Sciences, Department Information Services and High Performance Computing, Technische Universität Dresden, Dresden, Germany
| | - Jun Yang
- Centre for Endocrinology and Metabolism, Hudson Institute of Medical Research, Clayton, Australia
| | - Lisa Müller
- Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany
| | - Aleksander Prejbisz
- Department of Epidemiology, Cardiovascular Prevention and Health Promotion, National Institute of Cardiology, Warsaw, Poland
| | - Andrzej Januszewicz
- Department of Hypertension, National Institute of Cardiology, Warsaw, Poland
| | - Hanna Remde
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital, University of Würzburg, Würzburg, Germany
| | - Lydia Kürzinger
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital, University of Würzburg, Würzburg, Germany
| | - Ulrich Dischinger
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital, University of Würzburg, Würzburg, Germany
| | - Matthias Ernst
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), Zurich, Switzerland
| | - Sven Gruber
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), Zurich, Switzerland
| | - Martin Reincke
- Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany
| | - Felix Beuschlein
- Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), Zurich, Switzerland
- The LOOP Medical Research Center, Zurich, Switzerland
| | - Jacques W M Lenders
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Graeme Eisenhofer
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
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Bechmann N, Moskopp ML, Constantinescu G, Stell A, Ernst A, Berthold F, Westermann F, Jiang J, Lui L, Nowak E, Zopp S, Pacak K, Peitzsch M, Schedl A, Reincke M, Beuschlein F, Bornstein SR, Fassnacht M, Eisenhofer G. Asymmetric Adrenals: Sexual Dimorphism of Adrenal Tumors. J Clin Endocrinol Metab 2024; 109:471-482. [PMID: 37647861 PMCID: PMC11032253 DOI: 10.1210/clinem/dgad515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 08/03/2023] [Accepted: 08/28/2023] [Indexed: 09/01/2023]
Abstract
CONTEXT Sexual dimorphism has direct consequences on the incidence and survival of cancer. Early and accurate diagnosis is crucial to improve prognosis. OBJECTIVE This work aimed to characterized the influence of sex and adrenal asymmetry on the emergence of adrenal tumors. METHODS We conducted a multicenter, observational study involving 8037 patients with adrenal tumors, including adrenocortical carcinoma (ACC), aldosterone-producing adenoma (APA), cortisol-secreting adrenocortical adenomas (CSAs), non-aldosterone-producing adrenal cortical adenoma (NAPACA), pheochromocytoma (PCC), and neuroblastoma (NB), and investigated tumor lateralization according to sex. Human adrenal tissues (n = 20) were analyzed with a multiomics approach that allows determination of gene expression, catecholamine, and steroid contents in a single sample. In addition, we performed a literature review of computed tomography and magnetic resonance imaging-based studies examining adrenal gland size. RESULTS ACC (n = 1858); CSA (n = 68), NAPACA (n = 2174), and PCC (n = 1824) were more common in females than in males (female-to-male ratio: 1.1:1-3.8:1), whereas NBs (n = 2320) and APAs (n = 228) were less prevalent in females (0.8:1). ACC, APA, CSA, NAPACA, and NB occurred more frequently in the left than in the right adrenal (left-to-right ratio: 1.1:1-1.8:1), whereas PCC arose more often in the right than in the left adrenal (0.8:1). In both sexes, the left adrenal was larger than the right adrenal; females have smaller adrenals than males. CONCLUSION Adrenal asymmetry in both sexes may be related to the pathogenesis of adrenal tumors and should be considered during the diagnosis of these tumors.
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Affiliation(s)
- Nicole Bechmann
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Mats Leif Moskopp
- Department of Neurosurgery, Vivantes Friedrichshain Hospital, Charité Academic Teaching Hospital, 10249 Berlin, Germany
| | - Georgiana Constantinescu
- Department of Internal Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Anthony Stell
- School of Computing and Information Systems, University of Melbourne, 3052 Melbourne, Australia
| | - Angela Ernst
- Institute of Medical Statistics and Computational Biology, Faculty of Medicine, University of Cologne, 50931 Cologne, Germany
| | - Frank Berthold
- Children's Hospital, University of Cologne, 50735 Cologne, Germany
| | - Frank Westermann
- Hopp Children's Cancer Center Heidelberg (KiTZ), 69120 Heidelberg, Germany
- Division of Neuroblastoma Genomics, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Jingjing Jiang
- Department of Endocrinology and Metabolism, Zhongshan Hospital, 200031 Shanghai, China
| | - Longfei Lui
- Department of Urology, Xiangya Hospital, Central South University, 410017 Changsha, China
| | - Elisabeth Nowak
- Department of Medicine IV, University Hospital, Ludwig-Maximilians-Universität Munich, 80539 Munich, Germany
| | - Stephanie Zopp
- Department of Medicine IV, University Hospital, Ludwig-Maximilians-Universität Munich, 80539 Munich, Germany
| | - Karel Pacak
- Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Rockville, MD 20892, USA
| | - Mirko Peitzsch
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Andreas Schedl
- Université Côte d’Azur, Inserm, CNRS, Institut de Biologie Valrose, 06108 Nice, France
| | - Martin Reincke
- Department of Medicine IV, University Hospital, Ludwig-Maximilians-Universität Munich, 80539 Munich, Germany
| | - Felix Beuschlein
- Department of Medicine IV, University Hospital, Ludwig-Maximilians-Universität Munich, 80539 Munich, Germany
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), 8091 Zurich, Switzerland
- Institute of Neuropathology, University of Zurich, 8091 Zurich, Switzerland
| | - Stefan R Bornstein
- Department of Internal Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Martin Fassnacht
- Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital of Würzburg, University of Würzburg, 97080 Würzburg, Germany
| | - Graeme Eisenhofer
- Department of Internal Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
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Braun LT, Osswald A, Zopp S, Rubinstein G, Vogel F, Riester A, Honegger J, Eisenhofer G, Constantinescu G, Deutschbein T, Quinkler M, Elbelt U, Künzel H, Nowotny HF, Reisch N, Hartmann MF, Beuschlein F, Pons-Kühnemann J, Reincke M, Wudy SA. Delineating endogenous Cushing's syndrome by GC-MS urinary steroid metabotyping. EBioMedicine 2024; 99:104907. [PMID: 38128413 PMCID: PMC10776922 DOI: 10.1016/j.ebiom.2023.104907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 11/21/2023] [Accepted: 11/27/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Diagnosing Cushing's syndrome (CS) is highly complex. As the diagnostic potential of urinary steroid metabolome analysis by gas chromatography-mass spectrometry (GC-MS) in combination with systems biology has not yet been fully exploited, we studied a large cohort of patients with CS. METHODS We quantified daily urinary excretion rates of 36 steroid hormone metabolites. Applying cluster analysis, we investigated a control group and 168 patients: 44 with Cushing's disease (CD) (70% female), 18 with unilateral cortisol-producing adrenal adenoma (83% female), 13 with primary bilateral macronodular adrenal hyperplasia (PBMAH) (77% female), and 93 ruled-out CS (73% female). FINDINGS Cluster-Analysis delineated five urinary steroid metabotypes in CS. Metabotypes 1, 2 and 3 revealing average levels of cortisol and adrenal androgen metabolites included patients with exclusion of CS or and healthy controls. Metabotype 4 reflecting moderately elevated cortisol metabolites but decreased DHEA metabolites characterized the patients with unilateral adrenal CS and PBMAH. Metabotype 5 showing strong increases both in cortisol and DHEA metabolites, as well as overloaded enzymes of cortisol inactivation, was characteristic of CD patients. 11-oxygenated androgens were elevated in all patients with CS. The biomarkers THS, F, THF/THE, and (An + Et)/(11β-OH-An + 11β-OH-Et) correctly classified 97% of patients with CS and 95% of those without CS. An inverse relationship between 11-deoxygenated and 11-oxygenated androgens was typical for the ACTH independent (adrenal) forms of CS with an accuracy of 95%. INTERPRETATION GC-MS based urinary steroid metabotyping allows excellent identification of patients with endogenous CS and differentiation of its subtypes. FUNDING The study was funded by the Else Kröner-Fresenius-Stiftung and the Eva-Luise-und-Horst-Köhler-Stiftung.
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Affiliation(s)
- Leah T Braun
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität, Ziemssenstraße 5, München 80336, Germany
| | - Andrea Osswald
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität, Ziemssenstraße 5, München 80336, Germany
| | - Stephanie Zopp
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität, Ziemssenstraße 5, München 80336, Germany
| | - German Rubinstein
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität, Ziemssenstraße 5, München 80336, Germany
| | - Frederick Vogel
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität, Ziemssenstraße 5, München 80336, Germany
| | - Anna Riester
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität, Ziemssenstraße 5, München 80336, Germany
| | - Jürgen Honegger
- Department for Neurosurgery, University Hospital Tübingen, Hoppe-Seyler-Straße 3, Tübingen 72076, Germany
| | - Graeme Eisenhofer
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, Dresden 01307, Germany; Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, Dresden 01307, Germany
| | - Georgiana Constantinescu
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Fetscherstraße 74, Dresden 01307, Germany
| | - Timo Deutschbein
- Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital, University of Würzburg, Oberdürrbacher Str. 6, Würzburg 97080, Germany; Medicover Oldenburg MVZ, Elisenstr. 12, Oldenburg 26122, Germany
| | - Marcus Quinkler
- Endocrinology in Charlottenburg, Stuttgarter Platz 1, Berlin 10627, Germany
| | - Ulf Elbelt
- Division of Medicine B, University Hospital Ruppin-Brandenburg, Brandenburg Medical School, Fehrbelliner Str. 38, Neuruppin 16816, Germany; Endokrinologikum Berlin MVZ, Friedrichstraße 76, Berlin 10117, Germany; Medical Department, Division of Psychosomatic Medicine, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Hindenburgdamm 30, Berlin 12203, Germany
| | - Heike Künzel
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität, Ziemssenstraße 5, München 80336, Germany
| | - Hanna F Nowotny
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität, Ziemssenstraße 5, München 80336, Germany
| | - Nicole Reisch
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität, Ziemssenstraße 5, München 80336, Germany
| | - Michaela F Hartmann
- Division of Pediatric Endocrinology & Diabetology, Laboratory for Translational Hormone Analysis in Pediatric Endocrinology, Steroid Research & Mass Spectrometry Unit, Center of Child and Adolescent Medicine, Justus-Liebig-University, Feulgenstr. 10-12, Giessen 35392, Germany
| | - Felix Beuschlein
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität, Ziemssenstraße 5, München 80336, Germany; Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, Universitäts-Spital Zürich (USZ) und Universität Zürich (UZH), Raemistrasse 100, Zürich CH-8091, Switzerland
| | - Jörn Pons-Kühnemann
- Medical Statistics, Institute of Medical Informatics, Justus Liebig University Giessen, Rudolf-Buchheim-Str. 6, Giessen D-35392, Germany
| | - Martin Reincke
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität, Ziemssenstraße 5, München 80336, Germany
| | - Stefan A Wudy
- Division of Pediatric Endocrinology & Diabetology, Laboratory for Translational Hormone Analysis in Pediatric Endocrinology, Steroid Research & Mass Spectrometry Unit, Center of Child and Adolescent Medicine, Justus-Liebig-University, Feulgenstr. 10-12, Giessen 35392, Germany.
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Pamporaki C, Berends AMA, Filippatos A, Prodanov T, Meuter L, Prejbisz A, Beuschlein F, Fassnacht M, Timmers HJLM, Nölting S, Abhyankar K, Constantinescu G, Kunath C, de Haas RJ, Wang K, Remde H, Bornstein SR, Januszewicz A, Robledo M, Lenders JWM, Kerstens MN, Pacak K, Eisenhofer G. Prediction of metastatic pheochromocytoma and paraganglioma: a machine learning modelling study using data from a cross-sectional cohort. Lancet Digit Health 2023; 5:e551-e559. [PMID: 37474439 PMCID: PMC10565306 DOI: 10.1016/s2589-7500(23)00094-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 03/20/2023] [Accepted: 05/03/2023] [Indexed: 07/22/2023]
Abstract
BACKGROUND Pheochromocytomas and paragangliomas have up to a 20% rate of metastatic disease that cannot be reliably predicted. This study prospectively assessed whether the dopamine metabolite, methoxytyramine, might predict metastatic disease, whether predictions might be improved using machine learning models that incorporate other features, and how machine learning-based predictions compare with predictions made by specialists in the field. METHODS In this machine learning modelling study, we used cross-sectional cohort data from the PMT trial, based in Germany, Poland, and the Netherlands, to prospectively examine the utility of methoxytyramine to predict metastatic disease in 267 patients with pheochromocytoma or paraganglioma and positive biochemical test results at initial screening. Another retrospective dataset of 493 patients with these tumors enrolled under clinical protocols at National Institutes of Health (00-CH-0093) and the Netherlands (PRESCRIPT trial) was used to train and validate machine learning models according to selections of additional features. The best performing machine learning models were then externally validated using data for all patients in the PMT trial. For comparison, 12 specialists provided predictions of metastatic disease using data from the training and external validation datasets. FINDINGS Prospective predictions indicated that plasma methoxytyramine could identify metastatic disease at sensitivities of 52% and specificities of 85%. The best performing machine learning model was based on an ensemble tree classifier algorithm that used nine features: plasma methoxytyramine, metanephrine, normetanephrine, age, sex, previous history of pheochromocytoma or paraganglioma, location and size of primary tumours, and presence of multifocal disease. This model had an area under the receiver operating characteristic curve of 0·942 (95% CI 0·894-0·969) that was larger (p<0·0001) than that of the best performing specialist before (0·815, 0·778-0·853) and after (0·812, 0·781-0·854) provision of SDHB variant data. Sensitivity for prediction of metastatic disease in the external validation cohort reached 83% at a specificity of 92%. INTERPRETATION Although methoxytyramine has some utility for prediction of metastatic pheochromocytomas and paragangliomas, sensitivity is limited. Predictive value is considerably enhanced with machine learning models that incorporate our nine recommended features. Our final model provides a preoperative approach to predict metastases in patients with pheochromocytomas and paragangliomas, and thereby guide individualised patient management and follow-up. FUNDING Deutsche Forschungsgemeinschaft.
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Affiliation(s)
| | - Annika M A Berends
- Department of Endocrinology, Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Angelos Filippatos
- University Hospital Carl Gustav Carus, Institute of Lightweight Engineering and Polymer Technology, TU Dresden, Dresden, Germany; Machine Design Laboratory, Department of Mechanical Engineering & Aeronautics, University of Patras, Patras, Greece
| | - Tamara Prodanov
- Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Leah Meuter
- Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | | | - Felix Beuschlein
- Department of Internal Medicine IV, University Hospital LMU, Ludwig Maximilian University of Munich, Munich, Germany; Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital, University of Zurich, Zurich, Switzerland
| | - Martin Fassnacht
- Department of Internal Medicine, Division of Endocrinology and Diabetes, University of Würzburg, Würzburg, Germany
| | - Henri J L M Timmers
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Svenja Nölting
- Department of Internal Medicine IV, University Hospital LMU, Ludwig Maximilian University of Munich, Munich, Germany; Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital, University of Zurich, Zurich, Switzerland
| | - Kaushik Abhyankar
- University Hospital Carl Gustav Carus, Institute of Lightweight Engineering and Polymer Technology, TU Dresden, Dresden, Germany
| | | | - Carola Kunath
- Department of Medicine III, TU Dresden, Dresden, Germany
| | - Robbert J de Haas
- Department of Radiology, Medical Imaging Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Katharina Wang
- Department of Internal Medicine IV, University Hospital LMU, Ludwig Maximilian University of Munich, Munich, Germany
| | - Hanna Remde
- Department of Internal Medicine, Division of Endocrinology and Diabetes, University of Würzburg, Würzburg, Germany
| | | | | | - Mercedes Robledo
- Hereditary Endocrine Cancer Group, Human Cancer Genetics Programme, Spanish National Cancer Reserch Centre, Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain
| | - Jacques W M Lenders
- Department of Medicine III, TU Dresden, Dresden, Germany; Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Michiel N Kerstens
- Department of Endocrinology, Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - Karel Pacak
- Section on Medical Neuroendocrinology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Graeme Eisenhofer
- Department of Medicine III, TU Dresden, Dresden, Germany; Institute of Clinical Chemistry and Laboratory Medicine, TU Dresden, Dresden, Germany
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Braun LT, Vogel F, Rubinstein G, Zopp S, Nowak E, Constantinescu G, Masjkur J, Detomas M, Pamporaki C, Altieri B, Deutschbein T, Quinkler M, Beuschlein F, Reincke M. Lack of sensitivity of diagnostic Cushing-scores in Germany: a multicenter validation. Eur J Endocrinol 2023; 188:6979714. [PMID: 36651158 DOI: 10.1093/ejendo/lvac016] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 12/06/2022] [Accepted: 12/14/2022] [Indexed: 01/11/2023]
Abstract
OBJECTIVE Endogenous Cushing's syndrome (CS) is a severe condition, often diagnosed at a late stage. To reduce mortality, early diagnosis plays an important role. Two screening tools for early identification of patients with CS have been developed in multicentric cohorts, but have not yet been validated in cohorts with different geographic backgrounds. DESIGN We validated the Spanish score published by Leon-Justel et al. in 2016 and the Italian score by Parasiliti-Caprino et al. published in 2021 in our cohort. METHODS In the multicentric German Cushing registry, patients with confirmed and expected but ruled out Cushing's syndrome are prospectively diagnosed and followed up. We validated both scores in a cohort of 458 subjects: 176 patients with confirmed CS and 282 patients with suspected, but finally excluded CS. RESULTS Using the Spanish score, 17.5% of our patients with proven CS biochemical screening would not have been recommended. This concerned patients with pituitary CS (22%) and with adrenal CS (10%). On the contrary, only 14% of patients without CS would have received a recommendation for biochemical screening. Using the Italian score, 29% of patients with proven CS were classified into the low-risk classes not recommended for biochemical screening. This mostly affected patients with adrenal (31%) and pituitary CS (30%). About 12% of subjects without CS would have received a biochemical screening recommendation. CONCLUSIONS Both scores had limited sensitivity and high specificity in a German validation cohort. Further research is necessary to develop a screening score, which is effective in different healthcare systems and ethnicities.
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Affiliation(s)
- Leah T Braun
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, Munich 80336, Germany
| | - Frederick Vogel
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, Munich 80336, Germany
| | - German Rubinstein
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, Munich 80336, Germany
| | - Stephanie Zopp
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, Munich 80336, Germany
| | - Elisabeth Nowak
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, Munich 80336, Germany
| | - Georgiana Constantinescu
- Department of Internal Medicine III, University Hospital "Carl Gustav Carus", Technische Universität Dresden, Dresden 01307, Germany
| | - Jimmy Masjkur
- Department of Internal Medicine III, University Hospital "Carl Gustav Carus", Technische Universität Dresden, Dresden 01307, Germany
| | - Mario Detomas
- Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg 97080, Germany
| | - Christina Pamporaki
- Department of Internal Medicine III, University Hospital "Carl Gustav Carus", Technische Universität Dresden, Dresden 01307, Germany
| | - Barbara Altieri
- Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg 97080, Germany
| | - Timo Deutschbein
- Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg 97080, Germany
- Medicover Oldenburg MVZ, Oldenburg 26122, Germany
| | | | - Felix Beuschlein
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, Munich 80336, Germany
- Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, Universitätsspital Zürich (USZ) und Universität Zürich (UZH), Zürich 8091, Switzerland
| | - Martin Reincke
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, Munich 80336, Germany
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Constantinescu G, Schulze M, Peitzsch M, Hofmockel T, Scholl UI, Williams TA, Lenders JW, Eisenhofer G. Integration of artificial intelligence and plasma steroidomics with laboratory information management systems: application to primary aldosteronism. Clin Chem Lab Med 2022; 60:1929-1937. [DOI: 10.1515/cclm-2022-0470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 06/28/2022] [Indexed: 12/11/2022]
Abstract
Abstract
Objectives
Mass spectrometry-based steroidomics combined with machine learning (ML) provides a potentially powerful approach in endocrine diagnostics, but is hampered by limitations in the conveyance of results and interpretations to clinicians. We address this shortcoming by integration of the two technologies with a laboratory information management systems (LIMS) model.
Methods
The approach involves integration of ML algorithm-derived models with commercially available mathematical programming software and a web-based LIMS prototype. To illustrate clinical utility, the process was applied to plasma steroidomics data from 22 patients tested for primary aldosteronism (PA).
Results
Once mass spectrometry data are uploaded into the system, automated processes enable generation of interpretations of steroid profiles from ML models. Generated reports include plasma concentrations of steroids in relation to age- and sex-specific reference intervals along with results of ML models and narrative interpretations that cover probabilities of PA. If PA is predicted, reports include probabilities of unilateral disease and mutations of KCNJ5 known to be associated with successful outcomes of adrenalectomy. Preliminary results, with no overlap in probabilities of disease among four patients with and 18 without PA and correct classification of all four patients with unilateral PA including three of four with KCNJ5 mutations, illustrate potential utility of the approach to guide diagnosis and subtyping of patients with PA.
Conclusions
The outlined process for integrating plasma steroidomics data and ML with LIMS may facilitate improved diagnostic-decision-making when based on higher-dimensional data otherwise difficult to interpret. The approach is relevant to other diagnostic applications involving ML.
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Affiliation(s)
- Georgiana Constantinescu
- Department of Internal Medicine III , University Hospital “Carl Gustav Carus”, Technische Universität Dresden , Dresden , Germany
- Grigore T. Popa University of Medicine and Pharmacy , Iasi , Romania
| | - Manuel Schulze
- Department of Distributed and Data Intensive Computing , Center for Information Services and High Performance Computing (ZIH), Technische Universität Dresden , Dresden , Germany
| | - Mirko Peitzsch
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital “Carl Gustav Carus”, Technische Universität Dresden , Dresden , Germany
| | - Thomas Hofmockel
- Department of Radiology , University Hospital “Carl Gustav Carus”, Technische Universität Dresden , Dresden , Germany
| | - Ute I. Scholl
- Berlin Institute of Health at Charité – Universitätsmedizin Berlin, Center of Functional Genomics , Berlin , Germany
| | - Tracy Ann Williams
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München , Munich , Germany
- Department of Medical Sciences, Division of Internal Medicine and Hypertension , University of Turin , Turin , Italy
| | - Jacques W.M. Lenders
- Department of Internal Medicine III , University Hospital “Carl Gustav Carus”, Technische Universität Dresden , Dresden , Germany
- Department of Internal Medicine , Radboud University Medical Centre , Nijmegen , The Netherlands
| | - Graeme Eisenhofer
- Department of Internal Medicine III , University Hospital “Carl Gustav Carus”, Technische Universität Dresden , Dresden , Germany
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital “Carl Gustav Carus”, Technische Universität Dresden , Dresden , Germany
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7
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Eisenhofer G, Kurlbaum M, Peitzsch M, Constantinescu G, Remde H, Schulze M, Kaden D, Müller LM, Fuss CT, Kunz S, Kołodziejczyk-Kruk S, Gruber S, Prejbisz A, Beuschlein F, Williams TA, Reincke M, Lenders JWM, Bidlingmaier M. The Saline Infusion Test for Primary Aldosteronism: Implications of Immunoassay Inaccuracy. J Clin Endocrinol Metab 2022; 107:e2027-e2036. [PMID: 34963138 PMCID: PMC9016451 DOI: 10.1210/clinem/dgab924] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Indexed: 11/24/2022]
Abstract
CONTEXT Diagnosis of primary aldosteronism (PA) for many patients depends on positive results for the saline infusion test (SIT). Plasma aldosterone is often measured by immunoassays, which can return inaccurate results. OBJECTIVE This study aimed to establish whether differences in aldosterone measurements by immunoassay versus mass spectrometry (MS) might impact confirmatory testing for PA. METHODS This study, involving 240 patients tested using the SIT at 5 tertiary care centers, assessed discordance between immunoassay and MS-based measurements of plasma aldosterone. RESULTS Plasma aldosterone measured by Liaison and iSYS immunoassays were respectively 86% and 58% higher than determined by MS. With an immunoassay-based SIT cutoff for aldosterone of 170 pmol/L, 78 and 162 patients had, respectivel, negative and positive results. All former patients had MS-based measurements of aldosterone < 117 pmol/L, below MS-based cutoffs of 162 pmol/L. Among the 162 patients with pathogenic SIT results, MS returned nonpathologic results in 62, including 32 under 117 pmol/L. Repeat measurements by an independent MS method confirmed nonpathogenic results in 53 patients with discordant results. Patients with discordant results showed a higher (P < 0.0001) prevalence of nonlateralized than lateralized adrenal aldosterone production than patients with concordant results (83% vs 28%). Among patients with nonlateralized aldosterone production, 66% had discordant results. Discordance was more prevalent for the Liaison than iSYS immunoassay (32% vs 16%; P = 0.0065) and was eliminated by plasma purification to remove interferents. CONCLUSION These findings raise concerns about the validity of immunoassay-based diagnosis of PA in over 60% of patients with presumed bilateral disease. We provide a simple solution to minimize immunoassay inaccuracy-associated misdiagnosis of PA.
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Affiliation(s)
- Graeme Eisenhofer
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Max Kurlbaum
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital, University of Würzburg, Würzburg, Germany
| | - Mirko Peitzsch
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Georgiana Constantinescu
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Hanna Remde
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital, University of Würzburg, Würzburg, Germany
| | - Manuel Schulze
- Center for Information Services and High Performance Computing, Technische Universität Dresden, Dresden, Germany
| | - Denise Kaden
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Lisa Marie Müller
- Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany
| | - Carmina T Fuss
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital, University of Würzburg, Würzburg, Germany
| | - Sonja Kunz
- Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany
| | | | - Sven Gruber
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), Zurich, Switzerland
| | - Aleksander Prejbisz
- Department of Hypertension, National Institute of Cardiology, Warsaw, Poland
| | - Felix Beuschlein
- Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), Zurich, Switzerland
| | - Tracy Ann Williams
- Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany
- Division of Internal Medicine and Hypertension, Department of Medical Sciences, University of Turin, Turin, Italy
| | - Martin Reincke
- Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany
| | - Jacques W M Lenders
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Martin Bidlingmaier
- Department of Medicine IV, University Hospital, Ludwig Maximilian University Munich, Munich, Germany
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8
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Richter S, Qiu B, Ghering M, Kunath C, Constantinescu G, Luths C, Pamporaki C, Bechmann N, Meuter L, Kwapiszewska A, Deutschbein T, Nölting S, Peitzsch M, Robledo M, Prejbisz A, Pacak K, Gudziol V, Timmers HJLM, Eisenhofer G. Head/neck paragangliomas: focus on tumor location, mutational status and plasma methoxytyramine. Endocr Relat Cancer 2022; 29:213-224. [PMID: 35171114 PMCID: PMC8942340 DOI: 10.1530/erc-21-0359] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 02/16/2022] [Indexed: 11/08/2022]
Abstract
Head and neck paragangliomas (HNPGLs) are tumors of parasympathetic origin that occur at variable locations and are often secondary to germline mutations in succinate dehydrogenase (SDH) subunit genes. Occasionally, these tumors produce catecholamines. Here, we assessed whether different locations of HNPGLs relate to the presence of SDHx mutations, catecholamine production and other presentations. In this multicenter study, we collected clinical and biochemical data from 244 patients with HNPGLs and 71 patients without HNPGLs. We clarified that jugulotympanic HNPGLs have distinct features. In particular, 88% of jugulotympanic HNPGLs arose in women, among whom only 24% occurred due to SDHx mutations compared to 55% in men. Jugulotympanic HNPGLs were also rarely bilateral, were of a smaller size and were less often metastatic compared to carotid body and vagal HNPGLs. Furthermore, we showed that plasma concentrations of methoxytyramine (MTY) were higher (P < 0.0001) in patients with HNPGL than without HNPGL, whereas plasma normetanephrine did not differ. Only 3.7% of patients showed strong increases in plasma normetanephrine. Plasma MTY was positively related to tumor size but did not relate to the presence of SDHx mutations or tumor location. Our findings confirm that increases in plasma MTY represent the main catecholamine-related biochemical feature of patients with HNPGLs. We expect that more sensitive analytical methods will make biochemical testing of HNPGLs more practical in the future and enable more than the current 30% of patients to be identified with dopamine-producing HNPGLs. The sex-dependent differences in the development of HNPGLs may have relevance to the diagnosis, management and outcomes of these tumors.
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Affiliation(s)
- Susan Richter
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Correspondence should be addressed to S Richter:
| | - Bei Qiu
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Mirthe Ghering
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Carola Kunath
- Department of Medicine III, University Hospital Carl Gustav Carus, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Georgiana Constantinescu
- Department of Medicine III, University Hospital Carl Gustav Carus, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Charlotte Luths
- Department of Medicine III, University Hospital Carl Gustav Carus, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Christina Pamporaki
- Department of Medicine III, University Hospital Carl Gustav Carus, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Nicole Bechmann
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Department of Medicine III, University Hospital Carl Gustav Carus, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Leah Meuter
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA
| | | | - Timo Deutschbein
- Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
- Medicover Oldenburg MVZ, Oldenburg, Germany
| | - Svenja Nölting
- Medizinische Klinik and Poliklinik IV, Ludwig-Maximilians-Universität München, Munich, Germany
- Department for Endocrinology, Diabetology and Clinical Nutrition, UniversitätsSpital Zürich, Zurich, Switzerland
| | - Mirko Peitzsch
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Mercedes Robledo
- Hereditary Endocrine Cancer Group, CNIO, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain
| | | | - Karel Pacak
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA
| | - Volker Gudziol
- Department of Otorhinolaryngology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Hals-Chirurgie, Plastische Operationen, Städtisches Klinikum Dresden, Akademisches Lehrkrankenhaus der Technischen Universität Dresden, Dresden, Germany
| | - Henri J L M Timmers
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Graeme Eisenhofer
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Department of Medicine III, University Hospital Carl Gustav Carus, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
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9
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Berke K, Constantinescu G, Masjkur J, Kimpel O, Dischinger U, Peitzsch M, Kwapiszewska A, Dobrowolski P, Nölting S, Reincke M, Beuschlein F, Bornstein SR, Prejbisz A, Lenders JWM, Fassnacht M, Eisenhofer G. Plasma Steroid Profiling in Patients With Adrenal Incidentaloma. J Clin Endocrinol Metab 2022; 107:e1181-e1192. [PMID: 34665854 DOI: 10.1210/clinem/dgab751] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Indexed: 01/13/2023]
Abstract
CONTEXT Most patients with adrenal incidentaloma have nonfunctional lesions that do not require treatment, while others have functional or malignant tumors that require intervention. The plasma steroid metabolome may be useful to assess therapeutic need. OBJECTIVE This work aimed to establish the utility of plasma steroid profiling combined with metanephrines and adrenal tumor size for the differential diagnosis of patients with adrenal incidentaloma. METHODS This retrospective cross-sectional study, which took place at 7 European tertiary-care centers, comprised 577 patients with adrenal incidentaloma, including 19, 77, 65, 104 and 312 respective patients with adrenocortical carcinoma (ACC), pheochromocytoma (PHEO), primary aldosteronism (PA), autonomous cortisol secretion (ACS), and nonfunctional adrenal incidentaloma (NFAI). Mesaures of diagnostic performance were assessed (with [95% CIs]) for discriminating different subgroups of patients with adrenal incidentaloma. RESULTS Patients with ACC were characterized by elevated plasma concentrations of 11-deoxycortisol, 11-deoxycorticosterone, 17-hydroxyprogesterone, androstenedione, and dehydroepiandrosterone-sulfate, whereas patients with PA had elevations of aldosterone, 18-oxocortisol, and 18-hydroxycortisol. A selection of those 8 steroids, combined with 3 others (cortisol, corticosterone, and dehydroepiandrosterone) and plasma metanephrines, proved optimal for identifying patients with ACC, PA, and PHEO at respective sensitivities of 83.3% (66.1%-100%), 90.8% (83.7%-97.8%), and 94.8% (89.8%-99.8%); and specificities of 98.0% (96.9%-99.2%), 92.0% (89.6%-94.3%), and 98.6% (97.6%-99.6%). With the addition of tumor size, discrimination improved further, particularly for ACC (100% [100%-100%] sensitivity, 99.5% [98.9%-100%] specificity). In contrast, discrimination of ACS and NFAI remained suboptimal (70%-71% sensitivity, 89%-90% specificity). CONCLUSION Among patients with adrenal incidentaloma, the combination of plasma steroid metabolomics with routinely available plasma free metanephrines and data from imaging studies may facilitate the identification of almost all clinically relevant adrenal tumors.
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Affiliation(s)
- Kristina Berke
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Georgiana Constantinescu
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Jimmy Masjkur
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Otilia Kimpel
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital, University of Würzburg, 97082 Würzburg, Germany
| | - Ulrich Dischinger
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital, University of Würzburg, 97082 Würzburg, Germany
| | - Mirko Peitzsch
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | | | - Piotr Dobrowolski
- Department of Hypertension, National Institute of Cardiology, 04-828 Warsaw, Poland
| | - Svenja Nölting
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), 8057 Zurich, Switzerland
- Department of Medicine IV, University Hospital, Ludwig Maximilian University of Munich, 80539 Munich, Germany
| | - Martin Reincke
- Department of Medicine IV, University Hospital, Ludwig Maximilian University of Munich, 80539 Munich, Germany
| | - Felix Beuschlein
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), 8057 Zurich, Switzerland
- Department of Medicine IV, University Hospital, Ludwig Maximilian University of Munich, 80539 Munich, Germany
| | - Stefan R Bornstein
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
| | - Aleksander Prejbisz
- Department of Hypertension, National Institute of Cardiology, 04-828 Warsaw, Poland
| | - Jacques W M Lenders
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
- Department of Internal Medicine, Radboud University Medical Center, 6500 HB Nijmegen, the Netherlands
| | - Martin Fassnacht
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital, University of Würzburg, 97082 Würzburg, Germany
| | - Graeme Eisenhofer
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
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10
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Constantinescu G, Preda C, Constantinescu V, Siepmann T, Bornstein SR, Lenders JWM, Eisenhofer G, Pamporaki C. Silent pheochromocytoma and paraganglioma: Systematic review and proposed definitions for standardized terminology. Front Endocrinol (Lausanne) 2022; 13:1021420. [PMID: 36325453 PMCID: PMC9618947 DOI: 10.3389/fendo.2022.1021420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 09/28/2022] [Indexed: 11/16/2022] Open
Abstract
Pheochromocytomas and paragangliomas (PPGLs) are rare neuroendocrine tumors with heterogeneous clinical presentations and potential lethal outcomes. The diagnosis is based on clinical suspicion, biochemical testing, imaging and histopathological confirmation. Increasingly widespread use of imaging studies and surveillance of patients at risk of PPGL due to a hereditary background or a previous tumor is leading to the diagnosis of these tumors at an early stage. This has resulted in an increasing use of the term "silent" PPGL. This term and other variants are now commonly found in the literature without any clear or unified definition. Among the various terms, "clinically silent" is often used to describe the lack of signs and symptoms associated with catecholamine excess. Confusion arises when these and other terms are used to define the tumors according to their ability to synthesize and/or release catecholamines in relation to biochemical test results. In such cases the term "silent" and other variants are often inappropriately and misleadingly used. In the present analysis we provide an overview of the literature and propose standardized terminology in an attempt at harmonization to facilitate scientific communication.
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Affiliation(s)
- Georgiana Constantinescu
- Department of Endocrinology and Diabetes, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Department of Endocrinology, Grigore T. Popa University, Iasi, Romania
- Department of Health Care Sciences, Center for Clinical Research and Management Education, Dresden Inter-national University, Dresden, Germany
- *Correspondence: Christina Pamporaki, ; Georgiana Constantinescu,
| | - Cristina Preda
- Department of Endocrinology, Grigore T. Popa University, Iasi, Romania
| | - Victor Constantinescu
- Center of Clinical Neuroscience, University Clinic Carl-Gustav Carus, Dresden University of Technology, Dresden, Germany
| | - Timo Siepmann
- Department of Health Care Sciences, Center for Clinical Research and Management Education, Dresden Inter-national University, Dresden, Germany
- Department of Neurology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Stefan R. Bornstein
- Department of Endocrinology and Diabetes, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Department of Health Care Sciences, Center for Clinical Research and Management Education, Dresden International University, Dresden, Germany
- Division of Diabetes & Nutritional Sciences, Faculty of Life Sciences & Medicine, King's College London, London, United Kingdom
| | - Jacques W. M. Lenders
- Department of Endocrinology and Diabetes, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Graeme Eisenhofer
- Department of Endocrinology and Diabetes, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Institute of Clinical Chemistry and Laboratory Medicine, University of Dresden, Dresden, Germany
| | - Christina Pamporaki
- Department of Endocrinology and Diabetes, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- *Correspondence: Christina Pamporaki, ; Georgiana Constantinescu,
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11
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Ziegler CG, Riediger C, Gruber M, Kunath C, Ullrich M, Pietzsch J, Nölting S, Siepmann T, Bornstein SR, Remde H, Constantinescu G. Case report: Incidentally discovered case of pheochromocytoma as a cause of long COVID-19 syndrome. Front Endocrinol (Lausanne) 2022; 13:967995. [PMID: 36237184 PMCID: PMC9551989 DOI: 10.3389/fendo.2022.967995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 09/02/2022] [Indexed: 11/23/2022] Open
Abstract
Pheochromocytomas (PCCs) are rare but potentially lethal tumors that arise from the adrenal medulla. The clinical suspicion and diagnosis of PCC can be challenging due to the non-specific nature of signs and symptoms. In many patients, infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) could lead to long-term symptoms including fatigue, headaches, and cognitive dysfunction. Here, we present the case of a patient incidentally diagnosed with an adrenal mass that proved to be a PCC after imaging was performed due to persisting complaints after coronavirus disease 2019 (COVID-19) infection. A 37-year-old male patient was referred to our center because of a right-sided inhomogeneous adrenal mass, incidentally found during a computed tomographic scan of the thorax performed due to cough and dyspnea that persisted after COVID-19 infection. Other complaints that were present prior to COVID-19 infection included profuse sweating, dizziness, exhaustion with chronic fatigue, and concentration difficulties. The patient had no history of hypertension, his blood pressure was normal, and the 24-h ambulatory blood pressure monitoring confirmed normotension but with the absence of nocturnal dipping. Plasma normetanephrine was 5.7-fold above the upper limit (UL) of reference intervals (738 pg/ml, UL = 129 pg/ml), whereas plasma metanephrine and methoxytyramine were normal at 30 pg/ml (UL = 84 pg/ml) and <4 pg/ml (UL = 16 pg/ml), respectively. Preoperative preparation with phenoxybenzamine was initiated, and a 4-cm tumor was surgically resected. Profuse sweating as well as dizziness was resolved after adrenalectomy pointing toward PCC and not COVID-19-associated patient concerns. Altogether, this case illustrates the difficulties in recognizing the possibility of PCC due to the non-specific nature of signs and symptoms of the tumor, which in this case did not include hypertension and coincided with some of the symptoms of long COVID-19.
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Affiliation(s)
- Christian G. Ziegler
- Department of Molecular Endocrinology and Diabetology, Internal Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- *Correspondence: Christian G. Ziegler,
| | - Carina Riediger
- Department of Visceral Surgery, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Matthias Gruber
- Department of Endocrinology, Internal Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Carola Kunath
- Department of Endocrinology, Internal Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Martin Ullrich
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Department of Radiopharmaceutical and Chemical Biology, Dresden, Germany
| | - Jens Pietzsch
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Department of Radiopharmaceutical and Chemical Biology, Dresden, Germany
- Technische Universität Dresden (TU) Dresden, School of Science, Faculty of Chemistry and Food Chemistry, Dresden, Germany
| | - Svenja Nölting
- Department of Internal Medicine IV, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University of Zurich (UZH), Zurich, Switzerland
| | - Timo Siepmann
- Department of Neurology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Stefan R. Bornstein
- Department of Molecular Endocrinology and Diabetology, Internal Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Hanna Remde
- Division of Endocrinology and Diabetology, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
| | - Georgiana Constantinescu
- Department of Endocrinology, Internal Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
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12
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Eisenhofer G, Deutschbein T, Constantinescu G, Langton K, Pamporaki C, Calsina B, Monteagudo M, Peitzsch M, Fliedner S, Timmers HJLM, Bechmann N, Fankhauser M, Nölting S, Beuschlein F, Stell A, Fassnacht M, Prejbisz A, Lenders JWM, Robledo M. Plasma metanephrines and prospective prediction of tumor location, size and mutation type in patients with pheochromocytoma and paraganglioma. Clin Chem Lab Med 2020; 59:353-363. [PMID: 33001846 DOI: 10.1515/cclm-2020-0904] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 09/14/2020] [Indexed: 12/16/2022]
Abstract
Objectives Plasma free metanephrines are commonly used for diagnosis of pheochromocytoma and paraganglioma (PPGLs), but can also provide other information. This multicenter study prospectively examined whether tumor size, location, and mutations could be predicted by these metabolites. Methods Predictions of tumor location, size, and mutation type, based on measurements of plasma normetanephrine, metanephrine, and methoxytyramine were made without knowledge of disease in 267 patients subsequently determined to have PPGLs. Results Predictions of adrenal vs. extra-adrenal locations according to increased plasma concentrations of metanephrine and methoxytyramine were correct in 93 and 97% of the respective 136 and 33 patients in who these predictions were possible. Predicted mean tumor diameters correlated positively (p<0.0001) with measured diameters; predictions agreed well for pheochromocytomas but were overestimated for paragangliomas. Considering only patients with mutations, 51 of the 54 (94%) patients with NF1 or RET mutations were correctly predicted with those mutations according to increased plasma metanephrine, whereas no or minimal increase in metanephrine correctly predicted all 71 patients with either VHL or SDHx mutations; furthermore, among the latter group increases in methoxytyramine correctly predicted SDHx mutations in 93% of the 29 cases for this specific prediction. Conclusions Extents and patterns of increased plasma O-methylated catecholamine metabolites among patients with PPGLs allow predictions of tumor size, adrenal vs. extra-adrenal locations and general types of mutations. Predictions of tumor location are, however, only possible for patients with clearly increased plasma methoxytyramine or metanephrine. Where possible or clinically relevant the predictions are potentially useful for subsequent clinical decision-making.
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Affiliation(s)
- Graeme Eisenhofer
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.,Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Timo Deutschbein
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital, University of Würzburg, Würzburg, Germany
| | - Georgiana Constantinescu
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Katharina Langton
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Christina Pamporaki
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Bruna Calsina
- Hereditary Endocrine Cancer Group, Spanish National Cancer Research Centre and Centro de Investigación Biomédica en Red de Enfermedades Raras, Madrid, Spain
| | - Maria Monteagudo
- Hereditary Endocrine Cancer Group, Spanish National Cancer Research Centre and Centro de Investigación Biomédica en Red de Enfermedades Raras, Madrid, Spain
| | - Mirko Peitzsch
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Stephanie Fliedner
- First Department of Medicine, University Medical Center Schleswig-Holstein, Lübeck, Germany
| | - Henri J L M Timmers
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Nicole Bechmann
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.,Department of Experimental Diabetology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Maria Fankhauser
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität München, Munich, Germany
| | - Svenja Nölting
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität München, Munich, Germany
| | - Felix Beuschlein
- Medizinische Klinik und Poliklinik IV, Klinikum der Ludwig-Maximilians-Universität München, Munich, Germany.,Department of Endocrinology, Diabetology and Clinical Nutrition, UniviersitätsSpital Zürich, Zurich, Switzerland
| | - Anthony Stell
- Department of Computing and Information, University of Melbourne, MelbourneAustralia
| | - Martin Fassnacht
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital, University of Würzburg, Würzburg, Germany.,Central Laboratory, University Hospital Würzburg, Würzburg, Germany
| | | | - Jacques W M Lenders
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.,Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Mercedes Robledo
- Hereditary Endocrine Cancer Group, Spanish National Cancer Research Centre and Centro de Investigación Biomédica en Red de Enfermedades Raras, Madrid, Spain
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Constantinescu G, Leike S, Gruber M, Langton K, Kunath C, Peitzsch M, Deinum J, Eisenhofer G, Lenders J. Pheochromocytoma Concealed By Chronic Methamphetamine Abuse. AACE Clin Case Rep 2020; 6:e212-e216. [DOI: 10.4158/accr-2019-0601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 04/15/2020] [Indexed: 11/15/2022] Open
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14
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Constantinescu G, Langton K, Conrad C, Amar L, Assié G, Gimenez-Roqueplo AP, Blanchard A, Larsen CK, Mulatero P, Williams TA, Prejbisz A, Fassnacht M, Bornstein S, Ceccato F, Fliedner S, Dennedy M, Peitzsch M, Sinnott R, Januszewicz A, Beuschlein F, Reincke M, Zennaro MC, Eisenhofer G, Deinum J. Glucocorticoid Excess in Patients with Pheochromocytoma Compared with Paraganglioma and Other Forms of Hypertension. J Clin Endocrinol Metab 2020; 105:5866040. [PMID: 32609829 PMCID: PMC7413598 DOI: 10.1210/clinem/dgaa423] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 06/26/2020] [Indexed: 12/24/2022]
Abstract
CONTEXT Catecholamines and adrenocortical steroids are important regulators of blood pressure. Bidirectional relationships between adrenal steroids and catecholamines have been established but whether this is relevant to patients with pheochromocytoma is unclear. OBJECTIVE This study addresses the hypothesis that patients with pheochromocytoma and paraganglioma (PPGL) have altered steroid production compared with patients with primary hypertension. DESIGN Multicenter cross-sectional study. SETTING Twelve European referral centers. PATIENTS Subjects included 182 patients with pheochromocytoma, 36 with paraganglioma and 270 patients with primary hypertension. Patients with primary aldosteronism (n = 461) and Cushing syndrome (n = 124) were included for additional comparisons. INTERVENTION In patients with PPGLs, surgical resection of tumors. OUTCOME MEASURES Differences in mass spectrometry-based profiles of 15 adrenal steroids between groups and after surgical resection of PPGLs. Relationships of steroids to plasma and urinary metanephrines and urinary catecholamines. RESULTS Patients with pheochromocytoma had higher (P < .05) circulating concentrations of cortisol, 11-deoxycortisol, 11-deoxycorticosterone, and corticosterone than patients with primary hypertension. Concentrations of cortisol, 11-deoxycortisol, and corticosterone were also higher (P < .05) in patients with pheochromocytoma than with paraganglioma. These steroids correlated positively with plasma and urinary metanephrines and catecholamines in patients with pheochromocytoma, but not paraganglioma. After adrenalectomy, there were significant decreases in cortisol, 11-deoxycortisol, corticosterone, 11-deoxycorticosterone, aldosterone, and 18-oxocortisol. CONCLUSIONS This is the first large study in patients with PPGLs that supports in a clinical setting the concept of adrenal cortical-medullary interactions involving an influence of catecholamines on adrenal steroids. These findings could have implications for the cardiovascular complications of PPGLs and the clinical management of patients with the tumors.
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Affiliation(s)
- Georgiana Constantinescu
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Grigore T. Popa University of Medicine and Pharmacy, Iasi, Romania
- Correspondence and Reprint Requests: Georgiana Constantinescu, Department of Medicine III, Technische Universität Dresden, Fetscherstraße 74, 01307 Dresden, Germany. E-mail:
| | - Katharina Langton
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Catleen Conrad
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Laurence Amar
- Hôpital Européen Georges Pompidou, Hypertension Unit, APHP, Paris, France
- Cardiovascular Research Center INSERM, Paris, France
- Paris Descartes University, Sorbonne Paris Cité, Paris, France
| | - Guillaume Assié
- Paris Descartes University, Sorbonne Paris Cité, Paris, France
- Department of Endocrinology, Center for Rare Adrenal Diseases, Hôpital Cochin, APHP, Paris, France
- Institut Cochin, INSERM, Paris, France
| | - Anne-Paule Gimenez-Roqueplo
- Cardiovascular Research Center INSERM, Paris, France
- Hôpital Européen Georges Pompidou, Genetics Unit, Paris, France
| | - Anne Blanchard
- Paris Descartes University, Sorbonne Paris Cité, Paris, France
- INSERM, Centre d’Investigations Cliniques, Paris, France
| | | | - Paolo Mulatero
- Division of Internal Medicine and Hypertension, Department of Medical Sciences, University of Turin, Italy
| | - Tracy Ann Williams
- Division of Internal Medicine and Hypertension, Department of Medical Sciences, University of Turin, Italy
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | | | - Martin Fassnacht
- Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital, University of Würzburg, Würzburg, Germany
- Comprehensive Cancer Center Mainfranken, University of Würzburg, Würzburg, Germany
| | - Stefan Bornstein
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Division of Diabetes & Nutritional Sciences, Faculty of Life Sciences & Medicine, King’s College London, London, UK
- Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, University Hospital, Zürich, Switzerland
| | - Filippo Ceccato
- Endocrinology Unit, Department of Medicine DIMED, Padova University Hospital, Padua, Italy
| | - Stephanie Fliedner
- First Department of Medicine, University Medical Center Schleswig-Holstein, Lübeck, Germany
| | - Michael Dennedy
- The Discipline of Pharmacology and Therapeutics, School of Medicine, National University of Ireland Galway, Galway, Ireland
| | - Mirko Peitzsch
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Richard Sinnott
- School of Computing and Information Systems, University of Melbourne, Melbourne, Australia
| | | | - Felix Beuschlein
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
- Klinik für Endokrinologie, Diabetologie und Klinische Ernährung, University Hospital, Zürich, Switzerland
| | - Martin Reincke
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - Maria-Christina Zennaro
- Cardiovascular Research Center INSERM, Paris, France
- Paris Descartes University, Sorbonne Paris Cité, Paris, France
- Hôpital Européen Georges Pompidou, Genetics Unit, Paris, France
| | - Graeme Eisenhofer
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Jaap Deinum
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
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15
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Eisenhofer G, Constantinescu G. Commentary on Cryptogenic Cushing Syndrome Due to a White Lie. Clin Chem 2020; 66:661-662. [DOI: 10.1093/clinchem/hvaa036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 11/01/2019] [Indexed: 11/13/2022]
Affiliation(s)
- Graeme Eisenhofer
- Institute of Clinical Chemistry & Laboratory Medicine
- Department of Internal Medicine III, Technische Universität Dresden, Dresden, Germany
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16
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Peitzsch M, Kaden D, Pamporaki C, Langton K, Constantinescu G, Conrad C, Fliedner S, Sinnott RO, Prejbisz A, Därr R, Lenders JWM, Bursztyn M, Eisenhofer G. Overnight/first-morning urine free metanephrines and methoxytyramine for diagnosis of pheochromocytoma and paraganglioma: is this an option? Eur J Endocrinol 2020; 182:499-509. [PMID: 32187575 DOI: 10.1530/eje-19-1016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 03/18/2020] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Sympathoadrenal activity is decreased during overnight rest. This study assessed whether urinary-free normetanephrine, metanephrine and methoxytyramine in overnight/first-morning urine collections might offer an alternative to measurements in 24-h collections or plasma for diagnosis of pheochromocytoma and paraganglioma (PPGL). DESIGN AND METHODS Prospective multicenter cross-sectional diagnostic study involving 706 patients tested for PPGL, in whom tumors were confirmed in 79 and excluded in 627 after follow-up. Another 335 age- and sex-matched volunteers were included for reference purposes. Catecholamines and their free O-methylated metabolites were measured in 24-h collections divided according to waking and sleeping hours and normalized to creatinine. Plasma metabolites from blood sampled after supine rest were measured for comparison. RESULTS Urinary outputs of norepinephrine, normetanephrine, epinephrine and metanephrine in the reference population were respectively 50 (48-52)%, 35 (32-37)%, 76 (74-78)% and 15 (12-17)% lower following overnight than daytime collections. Patients in whom PPGLs were excluded showed 28 (26-30)% and 6 (3-9)% day-to-night falls in normetanephrine and metanephrine, while patients with PPGLs showed no significant day-to-night falls in metabolites. Urinary methoxytyramine was consistently unchanged from day to night. According to receiver-operating characteristic curves, diagnostic accuracy of metabolite measurements in overnight/first-morning urine samples did not differ from measurements in 24-h urine collections, but was lower for both than for plasma. Using optimized reference intervals, diagnostic specificity was higher for overnight than daytime collections at similar sensitivities. CONCLUSIONS Measurements of urinary-free catecholamine metabolites in first-morning/overnight urine collections offer an alternative for diagnosis of PPGL to 24-h collections but remain less accurate than plasma measurements.
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Affiliation(s)
- Mirko Peitzsch
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Denise Kaden
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Christina Pamporaki
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Katharina Langton
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Georgiana Constantinescu
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Catleen Conrad
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Stephanie Fliedner
- First Department of Medicine, University Medical Center Schleswig-Holstein, Lübeck, Germany
| | - Richard O Sinnott
- School of Computing and Information Systems, University of Melbourne, Melbourne, Australia
| | | | - Roland Därr
- Department of Medicine IV, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Jacques W M Lenders
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Michael Bursztyn
- Department of Medicine, Hypertension Unit, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Graeme Eisenhofer
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- Department of Medicine III, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
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17
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Billon R, Dainese L, Constantinescu G, Boudjemaa S, Chretien-Marquet B, Fasola S, Vazquez MP, Picard A, Kadlub N. Primary cutaneous B-cell lymphoblastic lymphoma in children. Report of two cases. Pediatr Dermatol 2015; 32:e36-8. [PMID: 25322931 DOI: 10.1111/pde.12369] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Precursor B-cell lymphoblastic lymphoma (B-LBL) is an uncommon high-grade neoplasm. Primary cutaneous B-LBL is uncommon and clinical diagnosis is difficult. We report two cases of primary cutaneous B-LBL that had initially been diagnosed as an infected dermoid cyst and lipoma, respectively, and referred for excision. The cases demonstrate the importance of biopsy and histopathologic examination of subcutaneous tumors to guide appropriate therapy.
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Affiliation(s)
- Raphaelle Billon
- Department of Maxillofacial and Plastic Surgery, Necker Hôpital Enfants Malades, APHP, Paris, France; Université Paris Descartes, Paris, France
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18
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Sotelo A, Rasekh S, Constantinescu G, Amaveda H, Torres M, Madre M, Diez J. Effect of Pb doping on the electrical properties of textured Bi-2212 superconductors. Ann Ital Chir 2014. [DOI: 10.1016/j.jeurceramsoc.2014.04.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Păun DL, Poiană C, Petriş R, Radian S, Miulescu RD, Constantinescu G, Orban C. Multiple endocrine neoplasia type 2A: case report. Chirurgia (Bucur) 2013; 108:900-903. [PMID: 24331334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/01/2013] [Indexed: 06/03/2023]
Abstract
Multiple endocrine neoplasia type 2A (MEN 2A) is a complex autosomal dominant inherited syndrome characterized by medullary thyroid carcinoma (MTC), pheochromocytoma and primary parathyroid hyperplasia. In patients with only one or two clinical features, identification of a germline RET(REarranged in Transfection) mutation or the identification of the clinical features of MEN 2A in other first degree relatives is required to make the diagnosis. We present the case of a family with MEN 2A syndrome confirmed by genetic analysis which identified RET gene mutation in 634 codon in father - DV - aged 48 years and also in daughter DM -aged 20 years. The specific feature in this case is that the index case was the daughter (diagnosed and operated for pheochromocytoma at the age of 19 years), the father being diagnosed later with medullary thyroid carcinoma by mutational screening in all family members. This family supports the phenomenon of anticipation, in which severity increases and the age of onset decreases in successive generations, the syndrome being discovered earlier and with a worse prognostic in the daughter.
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Constantinescu G, Grinţescu I, Stanciulescu L, Ilie M, Beuran M, Chiotoroiu A. A rare cause of acute massive lower gastrointestinal bleeding. Chirurgia (Bucur) 2013; 108:102-105. [PMID: 23464779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2013] [Indexed: 06/01/2023]
Abstract
Even if lower gastrointestinal bleeding (LGIB) can present as trivial haematochezia, massive hemorrhage with shock may occur. Acute massive LGIB is defined as bleeding of recent duration that originates beyond the ligament of Treitz and encompasses: passage of a large volume of red or maroon blood through the rectum, haemodynamic instability and shock, initial decrease in haematocrit level of 6 g/dL or less, transfusion of at least 2 U of packed red blood cells, bleeding that continues for 3 days or significant rebleeding in 1 week. This report presents the case of a 58-year-old man with massive LGI bleeding. Colonoscopy was performed in emergency with a poor colonic preparation, but the examiner fortunately and with difficulty managed to identify the source of the haemorrhage- a Dieulafoy's lesion of the right colon. The bleeding was successfully stopped permanently by injecting sclerosing agents into the spurting vessel. We have preferred colonoscopy as our first choice of investigation due to the facile availability and the opportunity of endoscopic haemostasis in case of finding the source of bleeding. Angiography was planned in case of failure of the first method. The definition, clinical presentation, and treatment of Dieulafoy's lesion are further discussed.
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Sporea I, Popescu A, Diculescu M, Stoica V, Constantinescu G, Prelipcean CC, Seicean A, Pascu O, Jinga M, Tudor N, Voiosu R, Dobru D, Săftoiu A, Vălean S, Miuţescu E, Bancu L, Băţagă S, Dumitraşcu D, Brisc C, Frăţilă O, Raţiu I, Pienar L, Şirli R, Miuţescu B. Technical performance of colonoscopy -- multicenter study in university and non-university centers of Romania. Chirurgia (Bucur) 2013; 108:86-90. [PMID: 23464775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2013] [Indexed: 06/01/2023]
Abstract
UNLABELLED The aim of the paper was to evaluate the national availability of colonoscopy and the quality parameters of this procedure in our country. MATERIAL AND METHOD During a 6 months period (01.07- 31.12.2009), we performed a prospective multicenter study in which 76 centers were invited to respond to a questionnaire regarding colonoscopy, 39 centers agreeing to participate. We assessed: the number of colonoscopies, the number of total colonoscopies and the causes of incomplete colonoscopies. RESULTS During the study period, 16,083 colonoscopies were performed, 12,294 (76.4%) of them total colonoscopies. In 1,191 cases, stenosis was the cause of incomplete colonoscopy. If we consider this an objective reason for an incomplete colonoscopy, there were 12,294 total colonoscopies (82.4%). Comparing university centers with non-university ones, the proportion of total colonoscopies was 10,400/12,475 (83.4%) vs. 1,894/2,417 (78.4%) (p less then 0.0001). However, comparing the present study with previous ones, performed in 2003 and 2007, the proportion of total colonoscopies increased from 70.5% to 76.9% and 82.4% respectively (2003 vs. 2007 p less then 0.0001; 2007 vs. 2009 p less then 0.0001), while the quality difference between university and non-university hospitals persisted. CONCLUSIONS the quality of colonoscopy in Romania increased in the last 5 years, while the quality difference between university and non-university hospitals persisted.
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Affiliation(s)
- I Sporea
- Department of Gastroenterology and Hepatology, University of Medicine and Pharmacy Timişoara, Romania.
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Simpson TRG, Constantinescu G, Mellor P, Lohani S, Khan B, Mushtaq M, Abdelhadi I, Bhattacharjee B, Serafimov V. P196 Percutaneous Ultrasound-Guided Biopsy of Intrathoracic Parietal Masses – a Safe Alternative to CT-Guided Biopsy? Thorax 2012. [DOI: 10.1136/thoraxjnl-2012-202678.257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Roul-Yvonnet F, Tabchouri N, Cassier S, Constantinescu G, Vazquez MP, Picard A, Kadlub N. [Children orbital floor fracture: retrospective study, about 34 cases]. ANN CHIR PLAST ESTH 2012; 57:240-4. [PMID: 22575771 DOI: 10.1016/j.anplas.2012.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Accepted: 03/27/2012] [Indexed: 10/28/2022]
Abstract
INTRODUCTION Orbital fractures represent 30 % of children facial fractures. Nausea and vomiting are more predictive of entrapment than local trauma stigmatisms. Entrapment and diplopia are more frequent in adults. Delay for surgery is unclear in literature varying from 6 hours to days. The aim of this study is to summarise the aspects of orbital floor fractures in children with regard to clinical and radiological presentation, management, and outcomes. PATIENTS AND METHODS We conducted a retrospective study including 34 children presenting isolated orbital floor fracture. Clinical, radiological, ophthalmological, surgical data and outcomes were analyzed. RESULTS Mean age was 9.4 years. In 15% of cases, no local stigmatism of trauma was present. Entrapment fracture was the most frequent, with 81% of fat or muscles entrapment. In all, 27% of the patient had residual diplopia. Residual diplopia developed after trap-door fracture with muscle entrapment and a more than 24 hours delay for surgery. CONCLUSION Trap-door fracture is frequent in childhood population. Clinical diagnosis can be difficult. However, surgical treatment should be considered before 24 hours to avoid complication as residual diplopia.
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Affiliation(s)
- F Roul-Yvonnet
- Service de chirurgie maxillo-faciale et chirurgie plastique, hôpital d'enfants Armand-Trousseau, groupe hospitalier HUEP, 26 avenue du Docteur-Arnold-Netter, Paris cedex 12, France
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Beltramina G, Kadlub N, Cassier S, Constantinescu G, Vazquez MP, Picard A. [Cutaneous and mucosal graft for labial defect after animal bite in children]. ANN CHIR PLAST ESTH 2012; 57:292-5. [PMID: 22342375 DOI: 10.1016/j.anplas.2012.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Accepted: 01/08/2012] [Indexed: 11/15/2022]
Abstract
Animal bite is frequently involved in children labial defect. The need for labial surgical repair is to restore anatomy and function. Local and regional flap is usually described for labial reconstructions. Few authors recommend mucosal and skin graft. In the present study, we described skin and mucosal graft for reconstruction of complex labial defect. This surgical technique can be applied in very young children with reasonable expectations of excellent functional and aesthetic outcome.
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Affiliation(s)
- G Beltramina
- Service de chirurgie maxillo-faciale et plastique pédiatrique, groupe hospitalier HUPE, hôpital Trousseau, Paris, France
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25
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Eremeishvili K, Nagendran R, Constantinescu G, Gulati M, Stokes T. 9064 POSTER Timeliness of Referral of Patients With Abnormal Chest X-Ray Suggestive of Lung Cancer. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72376-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Constantinescu G, Crăciun E, Balahura C, Doraş I, Oprita R, Bruckx D. [Esophageal stenting: techniques and effectiveness]. Chirurgia (Bucur) 2009; 104:723-730. [PMID: 20187472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE The purpose of this study is a prospective evaluation of the ease of implantation, long-term patency, indication of good oesophageal stent placement and related complications in patients due to obstructive malignant diseases. The clinical efficacy of these techniques is also examined. MATERIALS AND METHODS A total of 123 patients with severe oesophageal obstruction diagnosed between 1999 and 2008 were selected for stent placement. The following stents were used: Wallstent; Ultraflex; Medwark; Endotechnik; Wilson Cook (plastic); and Z stents. RESULTS The stent was successfully placed in the diseased oesophagus in all 123 patients. The stent implantation was more than 95% effective but the stent patency and the patients' life quality was low due to both progression of the disease and stent performance. Stents did increase life expectancy but performance was limited. CONCLUSIONS Stent placement is safe and effective for the primary palliation of patients with inoperable malignant oesophageal obstruction. Even if the stent price is relatively high the costs are offset due to earlier patient discharged from hospital. Stent and patient related problems persist and may require additional intervention. New innovations in stent design are needed to reduce the risk of stent-related complications.
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Affiliation(s)
- G Constantinescu
- Clinica de Gastroenterologie, Spitalul de Urgenţă Floreasca, Bucureşsti.
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27
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Sahai A, Lai CW, Constantinescu G, Hammadeh MY. Obstructive jaundice as a presenting symptom of metastatic carcinoma of the prostate. Case Reports 2009; 2009:bcr05.2009.1839. [DOI: 10.1136/bcr.05.2009.1839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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28
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Nicolau AE, Lobonţiu A, Constantinescu G. [Endoluminal fundoplication (ELF) with EsophyX2 for gastroesophageal reflux desease (GERD)]. Chirurgia (Bucur) 2009; 104:381-387. [PMID: 19886043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
GERD is a frequent, evolving, life quality-impairing disease. In addition to medication and laparoscopic fundoplication we have recently added endoluminal fundoplication (ELF). The EsophyX2 is currently the most efficient device for endoluminal fundoplication. This device produces a partial, anterior valve, redesigning the antireflux barrier and the Hiss angle geometry, thus improving the activity of the lower esophageal sphincter (LES). This paper presents the operative technique, the patient selection criteria and published results. It has been shown that this technique is both secure, reproductible and effective in patients followed for 12-24 months: life-quality improvement, decreased acid exposure, suppression of antiacids, reduced hospitalization and recovery. Compared to antiacid therapy, ELF is far more effective and less invasive than laparoscopic fundoplication. For the moment we have no long-term results. ELF with EsophyX2 is a minimally invasive and efficient therapy for GERD that requires further evaluation.
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Affiliation(s)
- A E Nicolau
- Clinica de Chirurgie, Spitalul Clinic de Urgenţă Bucureşti, Romania.
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29
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Beuran M, Chiotoroiu AL, Avram M, Vartic M, Constantinescu G, Dorobăţ B, Roşu O, Diaconescu BI. [Management for pseudoaneurysm of cystic artery with an arterio-biliary fistula after laparoscopic cholecystectomy: a rare case of hemobilia]. Chirurgia (Bucur) 2008; 103:689-694. [PMID: 19274916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Although laparoscopic cholecystectomy is considered to be the gold standard for treatment for symptomatic cholelithiasis, it is associated with an increased risk of biliary and vascular injury compared to the traditional technique. Massive hemobilia is a rare but potentially life-threatening cause of upper gastrointestinal hemorrhage. Arterio-biliary fistula is an uncommon cause of hemobilia. We describe a case of cystic artery pseudo-aneurysm causing arterio-biliary fistula and presenting as severe melaena and cholangitis that occurred 7 months after laparoscopic cholecystectomy. Gastroduodenoscopy failed to establish the exact source of bleeding and hepatic artery angiography and selective embolization of the pseudo-aneurysm successfully controlled the bleeding. Pseudo-aneurysm of the hepatic artery is mostly iatrogenic due to biliary intervention, as demonstrated in this case. Transarterial embolization is considered the first line of intervention to stop the bleeding for most causes of hemobilia. Hemobilia is a rare complication that should be considered when managing patients with bleeding or jaundice even several months after laparoscopic cholecystectomy.
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Affiliation(s)
- M Beuran
- Clinica de chirurgie, Spitalul Clinic de Urgenţă Bucureşti.
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30
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Beluşică L, Cimponeriu D, Dumitrescu I, Gherghinoiu R, Hortopan A, Constantinescu G, Predescu G, Doran H, Pătraşcu T. [When and what will we do with the descendants of colorectal cancer patients? Case study and research project presentation]. Chirurgia (Bucur) 2007; 102:277-80. [PMID: 17687855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The polygenic etiology of familial colorectal cancer and other digestive tract cancers has been acknowledged and therefore a study subject by means of various techniques such comparative genomic hybridization, serial genetic analysis (APC, CGH) or DNA arrays. Our paper is the first presentation of a CNCSIS research project named: "Analiza unor factori moleculari implicaţi in stabilirea riscului statistic de îmbolnăvire la descendentii probanzilor cu cancer rectocolonic" and also presents the case of a 12 members family in which 3 had already been diagnosed with colonic or rectal cancer. The APC gene methylation profile was studied in order to establish both the gene implication in cancer development within the family and the risk of colorectal cancer for the healthy family members. The paper shows the present means of interaction between the surgeon and the familial colorectal cancer cases and the research project advocates for the necessity of a genetic counseling network to which such cases should be referred.
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Affiliation(s)
- L Beluşică
- Clinica Chirurgie Generală I. Juvara, Spitalul Clinic I. Cantacuzino.
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31
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Nicolau AE, Argaseala I, Merlan V, Micu B, Enache O, Veste V, Beuran M, Bucur AI, Constantinescu G, Popa B, Racoveanu I. [Progress of surgical treatment in the last 10 years. Comparative study of surgical interventions performed between 1993-1995 versus between 2003-2005]. Chirurgia (Bucur) 2007; 102:51-6. [PMID: 17410730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
In the last decade of the past century, as laparoscopy was introduced in our clinic in 1993, minimal access therapy (MAT--endoscopy, angiography, interventional imagery) had a positive and constant evolution. Our paper retrospectively evaluates the interventions performed between 2003-2005 (group A) compared to those performed between 1993-1995 (group B). We observed a 17.08% (7056 vs 6026 interventions/year) raise in the total number of interventions in group A, with a significant 66% decrease (195 vs. 588 interventions/year) of interventions for gastro-duodenal ulcer and a 18% decrease (1211 vs 1490 interventions/year) of appendectomies, but a 63% increase (1560 vs. 955 interventions/year) of cholecystectomies, 53% increase (1186 vs. 773 interventions/year) of interventions for parietal defects and a 62% (626 vs. 325 interventions/year) increase of oncological interventions. The most frequent interventions were, in the order of frequencies: cholecystectomies (79.8% laparoscopically), appendectomies, interventions for hernia and eventrations, oncological operations and trauma surgery. The incidence of laparoscopic interventions was greater in group A, counting for 19% of the total number of interventions. In group A were performed 2334 endoscopies, 149 diagnostic and therapeutic angiographies. Postoperative mortality dropped with 29.64% and hospital stay dropped to 4.7 days. We believe that the incidence of MAT should rise, by performing more laparoscopic interventions and this change should lead to a revision of the surgical residents training program.
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Affiliation(s)
- A E Nicolau
- Clinica Chirurgie, Spitalul de Urgenta Floreasca, Bucureşti.
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32
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Helmle KE, Otto CJ, Constantinescu G, Honore LH, Andrew SE. Variable MLH1 promoter methylation patterns in endometrial carcinomas of endometrioid subtype lacking DNA mismatch repair. Int J Gynecol Cancer 2006; 15:1089-96. [PMID: 16343186 DOI: 10.1111/j.1525-1438.2005.00266.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
A lack of DNA mismatch repair (MMR) is observed in approximately 20% of sporadic endometrial tumors, but few of these tumors have mutations in MSH2 or MLH1, the two major MMR genes. Promoter methylation is an important means of silencing transcription, and methylation of the MLH1 promoter has been reported as an important cause of MLH1 inactivation in endometrial cancers. Studies have shown that specific CpG sites within the MLH1 gene promoter are critical for gene expression, but other studies have shown that methylation of both more proximal and more distal sequences are important for MLH1 gene regulation. Here, we used a microsatellite instability assay and MLH1 immunohistochemistry to identify a subset of endometrial carcinomas of the endometrioid subtype lacking MMR. Sequencing of bisulphite-treated DNA from these tumors determined the methylation status of 42 CpG sites across the MLH1 promoter (spanning -204 to -702 bp upstream of the transcriptional start). Unlike the 4 normal endometrial samples that were unmethylated, 17 of 21 MMR-deficient samples showed complete or near-complete methylation and the remaining 4 MMR-deficient samples had a considerable degree of methylation (approximately 50% or greater). Five tumors demonstrated isolated unmethylated CpG sites, despite methylation throughout the rest of the promoter. This underscores the importance of examining the methylation status of at least several CpG sites within the promoter as methylation is not always consistent across DNA. Overall, our findings support the model that density of methylation of CpG sites across the MLH1 promoter is important in determining gene expression.
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Affiliation(s)
- K E Helmle
- Department of Medical Genetics, University of Alberta, Edmonton, Alberta, Canada
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Dimitriu C, Martignoni ME, Bachmann J, Fröhlich B, Tintărescu G, Buliga T, Lică I, Constantinescu G, Beuran M, Friess H. Clinical impact of cachexia on survival and outcome of cancer patients. Rom J Intern Med 2005; 43:173-85. [PMID: 16812978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Approximately one half of all cancer patients experience a complex metabolic status involving progressive exhaustion of adipose and skeletal muscle tissue. This condition, known as cachexia, is responsible for more than 20% of the overall deaths in cancer patients. Although its main mechanisms remain unknown, several hypotheses have been proposed. One of the pathogenic mechanisms involves leptin and hypothalamic neuropeptide-containing pathways. Orexigenic and anorexigenic neuropeptides are down-regulated respectively upregulated as a result of cancer. Other pathogenic theories consider tumour derived factors, such as LMF (Lipid Mobilising Factor) and PIF (Proteolysis-inducing Factor), to be responsible for the weight losing pattern of cancer patients via activation of various catabolic pathways (e.g. ubiquitin-proteasome proteolytic-pathway, etc.). Despite the controversial discussion of cachexia-inducing mechanisms it is clear that proinflammatory cytokines, such as TNFalpha, IFNgamma, IL-1, IL-6 and IL-8, are linked to all pathways that induce cachexia. Although only limited treatment exists for patients with cancer cachexia, recent studies with eicosapaentanoic acid showed promising effects in reversing weight losing pattern of cachectic patients. Cytokine targeted monoclonal antibodies, cytokine traps and genetic therapies are also evaluated for future therapeutic strategies.
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Affiliation(s)
- C Dimitriu
- Surgical Department, Clinical Emergency Hospital Bucharest, Romania
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34
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Marin A, Constantinescu G. [Peroral cholangioscopy]. Chirurgia (Bucur) 2004; 99:79-85. [PMID: 15332645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
The aim of this study was to present peroral cholangioscopic method, their technique, indications, contraindications, the advantages and disadvantages of this method. Peroral cholangioscopy is associated with ERCP and was developed in the last two decades by development of "mother & baby" endoscopic system. In same mode with percutaneous cholangioscopy or laparoscopic cholangioscopy, peroral cholangioscopy have an important role in diagnosis and therapy of common bile duct diseases. In 2001-2002 the authors have perform six peroral cholangioscopy for diagnosis and therapy (nonspecific radiological findings on ERCP) and in five cases, they have found choledochal lithiasis which was resolved by this way. In one case has not found any pathology. By their efficiency with a low rate of specific complications, peroral cholangioscopy is now an appropriate method in diagnosis and therapy of common bile duct disease.
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Affiliation(s)
- A Marin
- Sectia Chirurgie, Spitalul Militar de Urgenţă Prof. Dr. Agrippa Ionescu", Bucureşti.
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35
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Beuran M, Grintescu I, Albu R, Constantinescu G. [Endoscopic gastrostomy ]. Chirurgia (Bucur) 2003; 98:465-8. [PMID: 14999976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- M Beuran
- Sef Clinică Chirurgie Spitalul Urgenţă Florească
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36
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Waibl H, Herrmann J, Rehage J, Lorenzi P, Constantinescu G. [Applied anatomy of the distal "vinculum tendinis" in the fetlock tendon sheath of the hindlimb in cattle]. Dtsch Tierarztl Wochenschr 2001; 108:261-3. [PMID: 11449913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
A relatively thick (diameter approximately 2 mm), ropelike (length ca. 20 mm) and elastic "Vinculum tendinis" connects--within the fetlock tendon sheath--the dorsal side of the deep digital flexor tendon with the dorsal part of the Manica flexoria (the communicating band of the Musculus interosseous medius to the superficial digital flexor tendon). The extensive fetlock tendon sheath can be involved in diseases such as aseptic and septic inflammations. Spreading of these inflammations makes in some of these cases the partial resection of the tendon of the deep digital flexor muscle and the cutting of these Vincula necessary. The results of this contribution, collected from 60 hindlimbs of adult bovines show variations in number, length, diameter and extent and the inner structure with blood vessels and nerves.
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Affiliation(s)
- H Waibl
- Anatomisches Institut, Tierärztliche Hochschule Hannover, Bischofsholer Damm 15, D-30173 Hannover
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37
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Mateş IN, Dinu D, Constantinescu G, Mocanu AR, Constantinoiu S. [Long-term evolution of a T-tube in the common bile duct]. Chirurgia (Bucur) 2000; 95:535-42. [PMID: 14870532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
We present the case of an elderly and frail woman, admitted for obstructive jaundice 9 years after cholecystectomy, lithotomy and T-tube drainage. The presence of a T-tube remnant in the common bile duct was suggested by imaging techniques, along with a megacholedocus. Because of the risks associated with advanced biliary cirrhosis, the endoscopic retrieval and lithotripsy was the first therapeutical attempt but failed. Lithotomy and cholangio-jejunostomy by open surgery were followed by a surprising favourable course.
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Affiliation(s)
- I N Mateş
- Clinica de Chirurgie, Spitalul Clinic Sfânta Maria, Bucureşti
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38
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Virtej P, Badea M, Badea I, Constantinescu G, Boldea G, Tudose F. Female genito-mammarian cancer in young women. Approach and quality of life. EUR J GYNAECOL ONCOL 1998; 19:87-9. [PMID: 9476069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- P Virtej
- Department of Obstetrics and Gynaecology, University Hospital, Bucharest, Romania
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Abstract
A technique for reconstruction of the thoracic esophagus was evaluated in 13 dogs. A 9 x 10 cm section of transversus abdominis muscle was harvested, fashioned into a tubular graft, and vascularized via the greater omentum. The vascularized tube was advanced into the caudal thorax through the diaphragm at a second surgery 20 to 44 days after harvesting the section of the transversus abdominis muscle. A 5 cm section of caudal thoracic esophagus was replaced with the vascular tubular graft. One dog died because of incarceration of the intestine within the tube and two dogs were euthanized because of infected tubes. One dog died due to an anesthetic complication, one dog had a diaphragmatic hernia and died, and one dog died from pyothorax. Leakage of luminal contents at the anastomoses did not occur in any dog. Seven dogs survived both surgeries but showed deglutitory difficulty 6 days postoperatively due to the grafted esophageal segments becoming severely strictured in each case. Angiography demonstrated vascularization of the full thickness of the graft in each of the seven dogs. An unacceptably high incidence of infection and stricture formation made this technique unsuitable for clinical use.
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Affiliation(s)
- R C Straw
- Department of Small Animal Medicine, College of Veterinary Medicine, University of Missouri-Columbia
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Constantinescu G, Simionescu L, Teodorescu-Exarcu I. The method of multilayer gel plates for the analytical immunochemical techniques. Endocrinologie 1981; 19:195-8. [PMID: 6794142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A new analytical immunochemical method using gel film copies obtained by means of multilayer gel plates is described. The method is suitable for any variant of immunochemical gel technique. Perfect identity of the copies as well as some advantages are exemplified. In comparison with the already known monolayer gel plate method, the multilayer plate is more advantageous for the study of the dynamics of the antigen-antibody reaction, for the discovery of the nature of some unknown biological products available in very low quantities and for the discovery of the nature of some unknown biological products available in very low quantities and for the economy of certain costly reagents. Moreover, its high reproductibility recommends it as a reference method for the control of quality, especially of the precision and accuracy of the monolayer immunofiltration techniques.
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41
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Constantinescu G, Căpraru T. The micro precipitation test in trichinosis diagnosis. Arch Roum Pathol Exp Microbiol 1980; 39:41-47. [PMID: 7406677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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42
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Presdescu V, Constantinescu G, Alexianu M, Tudorache B, Tudor S, Braslă N, Romila A, Nedelcu A, Curelaru S, Roman I, Simionescu N, Dragutoiu E, Arsene A, Meiu F, Florescu M, Radu M. A multidisciplinary approach of the psycho-somatic involution syndrome. Neurol Psychiatr (Bucur) 1976; 14:85-95. [PMID: 968422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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43
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Teodorescu-Exarcu I, Rusu O, Iorgulescu M, Constantinescu G. [Serum immunoglobulin concentration in newborn infants with perinatal distress]. Rev Pediatr Obstet Ginecol Pediatr 1976; 25:119-34. [PMID: 822488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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44
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Constantinescu G. [Clinical value of Ketalar in anesthesia in children]. Chirurgia (Bucur) 1971; 20:839-43. [PMID: 5153915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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45
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Façon E, Constantinescu G, Ionescu M. [Polyneuropathies with unfavorable prolonged evolution and cerebrospinal fluid syndrome of albuminocytological dissociation]. Neurol Psihiatr Neurochir 1969; 14:231-6. [PMID: 5343896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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46
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Ionescu N, Bebică C, Constantinescu G. [Primary gastric reticulolymphosarcoma]. Med Interna (Bucur) 1967; 19:491-4. [PMID: 4861101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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47
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Vereanu D, Florescu M, Constantinescu G. The role of intravenous fat emulsions in hydro-electrolytical imbalance in children. Rom Med Rev 1966; 20:20-4. [PMID: 4959260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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48
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Vereanu D, Florescu M, Constantinescu G. [The role of intravenous fat emulsions in water-electrolyte imbalance in children]. Pediatria (Bucur) 1965; 14:517-22. [PMID: 5867996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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49
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Constantinescu G. [Professor Mihail Emil Maurer, 1904-1964]. Fiziol Norm Patol 1965; 11:92-3. [PMID: 5320748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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