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Riggan KA, Ormond KE, Allyse MA, Close S. Evidence-based recommendations for delivering the diagnosis of X & Y chromosome multisomies in children, adolescents, and young adults: an integrative review. BMC Pediatr 2024; 24:263. [PMID: 38649921 PMCID: PMC11034074 DOI: 10.1186/s12887-024-04723-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 03/26/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND The diagnosis of supernumerary X & Y chromosome variations has increased following the implementation of genetic testing in pediatric practice. Empirical evidence suggests that the delivery of the diagnosis has a lasting impact on how affected individuals and their parents perceive and adapt to the diagnosis. The purpose of this review is to synthesize the literature to obtain useful recommendations for delivering a pediatric diagnosis of a sex chromosome multisomy (SCM) based upon a growing body of quantitative and qualitative literature on patient experiences. METHODS We conducted an integrative literature review using PubMed, Web of Science and CINAHL employing keywords "genetic diagnosis delivery," "genetic diagnosis disclosure," "sex chromosome aneuploidy," "Klinefelter syndrome" or ""47, XXY," "Jacob syndrome" or "47, XYY," "Trisomy X," "Triple X" or "47, XXX," and "48 XXYY from January 1, 2000, to October 31, 2023. RESULTS Literature supports that patients and parents value the provision of up-to-date information and connection with supportive resources. Discussion of next steps of care, including relevant referrals, prevents perceptions of provider abandonment and commitment to ongoing support. Proactively addressing special concerns such as disclosing the diagnosis to their child, family, and community is also beneficial. Tables are provided for useful information resources, medical specialties that may be required to support patients, and common misconceptions that interfere with accurate information about the diagnosis. CONCLUSION Patient experiences suggest there should be heightened attention to diagnosis delivery, in reference to the broader ethical and social impacts of a SCM diagnosis. We present recommendations for optimal disclosure of a SCM diagnosis in early and late childhood, adolescence, and young adulthood.
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Affiliation(s)
- Kirsten A Riggan
- Biomedical Ethics Research Program, Mayo Clinic, Rochester, MN, USA
| | - Kelly E Ormond
- Department of Health Sciences and Technology, Health Ethics and Policy Lab, ETH-Zurich, Zurich, Switzerland
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Megan A Allyse
- Biomedical Ethics Research Program, Mayo Clinic, Rochester, MN, USA
- Department of Obstetrics & Gynecology, Mayo Clinic, Rochester, MN, USA
| | - Sharron Close
- Nell Hodgson Woodruff School of Nursing, Emory University, 1520 Clifton Road NE, Atlanta, GA, 30342, USA.
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Davis SM, Teerlink C, Lynch JA, Gorman BR, Pagadala M, Liu A, Panizzon MS, Merritt VC, Genovese G, Ross JL, Hauger RL. Prevalence, Morbidity, and Mortality of Men With Sex Chromosome Aneuploidy in the Million Veteran Program Cohort. JAMA Netw Open 2024; 7:e244113. [PMID: 38551561 PMCID: PMC10980972 DOI: 10.1001/jamanetworkopen.2024.4113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 01/15/2024] [Indexed: 04/01/2024] Open
Abstract
Importance The reported phenotypes of men with 47,XXY and 47,XYY syndromes include tall stature, multisystem comorbidities, and poor health-related quality of life (HRQOL). However, knowledge about these sex chromosome aneuploidy (SCA) conditions has been derived from studies in the less than 15% of patients who are clinically diagnosed and also lack diversity in age and genetic ancestry. Objectives To determine the prevalence of clinically diagnosed and undiagnosed X or Y chromosome aneuploidy among men enrolled in the Million Veteran Program (MVP); to describe military service metrics of men with SCAs; and to compare morbidity and mortality outcomes between men with SCA with and without a clinical diagnosis vs matched controls. Design, Setting, and Participants This cross-sectional study used a case-control recruitment design to select biological males enrolled in the MVP biobank in the US Veterans Administration health care system from 2011 to 2022. Cases were participants with 47,XXY syndrome or 47,XYY syndrome, matched 1:5 with controls based on sex, age, and genetic ancestry. Data were analyzed from January 2022 to December 2023. Exposure Genomic identification of an additional X or Y chromosome. Main Outcomes and Measures Outcomes of interest included prevalence of men with SCAs from genomic analysis; clinical SCA diagnosis; Charlson Comorbidity Index; rates of outpatient, inpatient, and emergency encounters per year; self-reported health outcomes; and standardized mortality ratio. Results Of 595 612 genotyped males in the MVP, 862 had an additional X chromosome (47,XXY) and 747 had an extra Y chromosome (47,XYY), with the highest prevalence among men with East Asian (47,XXY: 10 of 7313 participants; 47,XYY: 14 of 7313 participants) and European (47,XXY: 725 of 427 143 participants; 47,XYY: 625 of 427 143 participants) ancestry. Mean (SD) age at assessment was 61 (12) years, at which point 636 veterans (74.X%) with 47,XXY and 745 veterans (99%) with 47,XYY remained undiagnosed. Individuals with 47,XXY and 47,XYY had similar military service history, all-cause standardized mortality ratio, and age of death compared with matched controls. Individuals with SCA, compared with controls, had higher Charlson Comorbidity Index scores (47,XXY: mean [SD], 4.30 [2.72] vs controls: mean [SD], 3.90 [2.47]; 47,XYY: mean [SD], 4.45 [2.90] vs controls: mean [SD], 3.82 [2.50]) and health care utilization (eg, median [IQR] outpatient encounters per year: 47,XXY, 22.6 [11.8-37.8] vs controls, 16.8 [9.4-28]; 47,XYY: 21.4 [12.4-33.8] vs controls: 17.0 [9.4-28.2]), while several measures of HRQOL were lower (eg, mean [SD] self-reported physical function: 47,XXY: 34.2 [12] vs control mean [SD] 37.8 [12.8]; 47,XYY: 36.3 [11.6] vs control 37.9 [12.8]). Men with a clinical diagnosis of 47,XXY, compared with individuals without a clinical diagnosis, had higher health care utilization (eg, median [IQR] encounters per year: 26.6 [14.9-43.2] vs 22.2 [11.3-36.0]) but lower Charlson Comorbidity Index scores (mean [SD]: 3.7 [2.7] vs 4.5 [4.1]). Conclusion and Relevance In this case-control study of men with 47,XXY and 47,XYY syndromes, prevalence of SCA was comparable with estimates in the general population. While these men had successfully served in the military, they had higher morbidity and reported poorer HRQOL with aging. Longer longitudinal follow-up of this sample will be informative for clinical and patient-reported outcomes, the role of ancestry, and mortality statistics.
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Affiliation(s)
- Shanlee M Davis
- Department of Pediatrics, University of Colorado School of Medicine, Aurora
- eXtraOrdinarY Kids Clinic, Children's Hospital Colorado, Aurora
| | - Craig Teerlink
- VA Informatics and Computing Infrastructure, VA Salt Lake City Healthcare System, Salt Lake City, Utah
- Department of Internal Medicine, University of Utah Health, Salt Lake City
| | - Julie A Lynch
- VA Informatics and Computing Infrastructure, VA Salt Lake City Healthcare System, Salt Lake City, Utah
- Department of Internal Medicine, University of Utah Health, Salt Lake City
- College of Nursing and Health Sciences, University of Massachusetts, Lowell
| | | | - Meghana Pagadala
- Medical Scientist Training Program, University of California San Diego, La Jolla
- Biomedical Science Program, University of California San Diego, La Jolla
| | - Aoxing Liu
- University of Helsinki Institute for Molecular Medicine, Helsinki, Finland
| | - Matthew S Panizzon
- Center for Behavioral Genetics of Aging, School of Medicine, University of California San Diego, La Jolla
| | - Victoria C Merritt
- Department of Psychiatry, University of California San Diego, La Jolla
- Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego, California
| | - Giulio Genovese
- Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Boston, Massachusetts
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts
- Department of Genetics, Harvard Medical School, Boston, Massachusetts
| | - Judith L Ross
- Nemours Children's Hospital Delaware, Wilmington
- Department of Pediatrics, School of Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Richard L Hauger
- Center for Behavioral Genetics of Aging, School of Medicine, University of California San Diego, La Jolla
- Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego, California
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3
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Franik S, Fleischer K, Kortmann B, Stikkelbroeck NM, D’Hauwers K, Bouvattier C, Slowikowska-Hilczer J, Grunenwald S, van de Grift T, Cartault A, Richter-Unruh A, Reisch N, Thyen U, IntHout J, Claahsen-van der Grinten HL. Quality of life in men with Klinefelter syndrome: a multicentre study. Endocr Connect 2023; 12:e230111. [PMID: 37578764 PMCID: PMC10563591 DOI: 10.1530/ec-23-0111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 08/14/2023] [Indexed: 08/15/2023]
Abstract
Background Klinefelter syndrome (KS) is associated with an increased risk of lower socioeconomic status and a higher risk for morbidity and mortality, which may have a significant impact on quality of life (QOL). The objective of this study is to investigate QOL in a large European cohort of men with KS. Design Cross-sectional multicentre study. Methods Two-hundred-eighteen men with KS were recruited from 14 clinical study centres in 6 European countries which participated in the European dsd-LIFE study. Male normative data from a healthy and a psychiatric reference population were used for comparison. The validated World Health Organization (WHO) QOL (WHOQOL)-BREF questionnaire was used to investigate five main domains of quality of life (WHOQOL): global, physical, psychological, environment, and social. Results The QOL physical domain score was lower for men with KS compared to the healthy reference population (KS: 66.9; s.d. 19.4, n = 193; healthy reference population: 76.5; s.d. 16.2, n = 1324, P < 0.001) but higher compared to the psychiatric reference population (54.6; s.d. 20.6; n = 77, P < 0.001). The WHOQOL-psychological domain score was lower for men with KS compared to the healthy reference population (KS: 63.6; s.d. 17.8, n = 193; healthy reference population: 67.8; s.d. 15.6, n = 1324, P < 0.05) but higher compared to the psychiatric reference population (45.9; s.d. 26.0), n = 77, P < 0.001). The social domain score on the WHOQOL questionnaire was found to be lower in men with Klinefelter syndrome (KS) compared to the healthy reference population (KS: 60.0; s.d. 21.6, n = 193; healthy reference population: 68.2; s.d. 13.8, n = 1324, P < 0.001). However, this score was similar to that of the psychiatric reference population (61.0; s.d. 17.0, n = 77, P = 0.5). The WHO environment domain score of men with KS (70.0; s.d. 15.0, n = 193) was similar to the healthy reference population (70.5; s.d. 20.7, n = 1324) but higher compared to the psychiatric reference population (61.9; s.d. 20.8, n = 77, P = 0.002). Experienced discrimination, less social activities, and the presence of chronic health problems were associated with significantly decreased QOL in men with KS. Conclusion Overall QOL in European men with KS is significantly worse compared to a healthy European reference population. Especially, the presence of discrimination, less social activities, and chronic health problems is associated with lower physical, psychological, and social QOL. Further studies are necessary to investigate if a multidisciplinary approach may help to provide adequate counselling and psychosocial support to improve QOL.
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Affiliation(s)
- Sebastian Franik
- Department of Obstetrics and Gynaecology, Radboudumc, Nijmegen, The Netherlands
| | - Kathrin Fleischer
- Department of Obstetrics and Gynaecology, Radboudumc, Nijmegen, The Netherlands
| | - Barbara Kortmann
- Department of Pediatric Urology, Radboudumc, Nijmegen, The Netherlands
| | | | | | - Claire Bouvattier
- Department of Pediatric Endocrinology, Bicêtre Hospital, Paris Sud University, France
| | | | - Solange Grunenwald
- Department of Endocrinology and Metabolic Disease, Centre Hospitalier Universitaire de Toulouse, France
| | - Tim van de Grift
- Departments of Plastic Surgery and Medical Psychology, Amsterdam UMC location VUmc, Amsterdam, The Netherlands
| | - Audrey Cartault
- Department of Pediatrics, Hospital Des Enfants, Toulouse, France
| | - Annette Richter-Unruh
- Kinderendokrinologie und Diabetologie, Universitätsklinikum Ruhr-Universität Bochum, Kinderklinik, Bochum, Germany
| | - Nicole Reisch
- Department of Endocrinology, Medizinische Klinik and Poliklinik IV, University Hospital Munich, Munich, Germany
| | - Ute Thyen
- Klinik fur Kinder- und Jugendmedizin, Universitat zu Lubeck, Ratzeburger Allee, Lubeck, Germany
| | - Joanna IntHout
- Department for Health Evidence, Radboudumc, Nijmegen, The Netherlands
| | | | - the dsd-LIFE group
- Department of Obstetrics and Gynaecology, Radboudumc, Nijmegen, The Netherlands
- Department of Pediatric Urology, Radboudumc, Nijmegen, The Netherlands
- Department of Internal Medicine, Radboudumc, Nijmegen, The Netherlands
- Department of Urology, Radboudumc, Nijmegen, The Netherlands
- Department for Health Evidence, Radboudumc, Nijmegen, The Netherlands
- Department of Pediatric Endocrinology, Bicêtre Hospital, Paris Sud University, France
- Department of Andrology and Reproductive Endocrinology, Medical University of Lodz, Poland
- Department of Endocrinology and Metabolic Disease, Centre Hospitalier Universitaire de Toulouse, France
- Departments of Plastic Surgery and Medical Psychology, Amsterdam UMC location VUmc, Amsterdam, The Netherlands
- Department of Pediatrics, Hospital Des Enfants, Toulouse, France
- Kinderendokrinologie und Diabetologie, Universitätsklinikum Ruhr-Universität Bochum, Kinderklinik, Bochum, Germany
- Department of Endocrinology, Medizinische Klinik and Poliklinik IV, University Hospital Munich, Munich, Germany
- Klinik fur Kinder- und Jugendmedizin, Universitat zu Lubeck, Ratzeburger Allee, Lubeck, Germany
- Department of Pediatric Endocrinology, Amalia Childrens Hospital, Radboudumc, Nijmegen, The Netherlands
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Zhang B, Li F, Huang C, Xu L, Cao Z, Kang Y, Jiang W, Chang D. The correlation between clinical features and ultrastructure of testis of non-mosaic Klinefelter's syndrome patients with hypogonadism and androgen deficiency: A case report. Heliyon 2023; 9:e19940. [PMID: 37809695 PMCID: PMC10559353 DOI: 10.1016/j.heliyon.2023.e19940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 08/23/2023] [Accepted: 09/06/2023] [Indexed: 10/10/2023] Open
Abstract
Background Klinefelter Syndrome (KS) is a sex chromosomal syndrome usually with an extra X chromosome (47, XXY) in males, which has various phenotype (mosaicism 47, XXY/46, XY, or more chromosomes 48, XXXY, 49, XXXXY) and clinical features, including eunuchoid body proportions, abnormally long legs and arm span, gynecomastia, ynecomastia, absent or decreased facial and pubic hair, small hyalinized testes, small penis, below-normal verbal intelligence quotient, and learning difficulties. At present, there are no studies on the correlation between the clinical characteristics of patients with KS and the ultrastructural changes of intracellular organelles in testicular tissue in China. Case presentation Here we report the ultrastructure manifestation of the testis tissues in a KS patient with hypogonadism and androgen deficiency, to find a relationship between ultrastructural changes of organelles and spermatogenic dysfunction, clinical features, timing of surgery and metabolic abnormalities. It has been shown that the spermatocytes are absent and the ultrastructure of Sertoli cells and Leydig cells is obviously abnormal, which may lead to spermatogenic dysfunction, androgen deficiency, impaired glucose tolerance (IGT), and abdominal fat accumulation. Conclusions Based on the European Academy of Andrology (EAA) Gudilines on Klinefelter Syndrome, this study conducted a retrospective study on the diagnosis and treatment of one adult patient with KS, aiming to provide a standardized diagnosis and treatment for patients with KS. This study is also highly concerned with the correlation between the ultrastructural changes of target organs and clinical symptoms.
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Affiliation(s)
- Bin Zhang
- Department of Urology, The 940th Hospital of PLA Joint Logistic Support Force, Lanzhou, Gansu, China
| | - Fudong Li
- Department of Urology, The 940th Hospital of PLA Joint Logistic Support Force, Lanzhou, Gansu, China
| | - Chuang Huang
- Department of Urology, The 940th Hospital of PLA Joint Logistic Support Force, Lanzhou, Gansu, China
| | - Liuting Xu
- Department of Urology, The 940th Hospital of PLA Joint Logistic Support Force, Lanzhou, Gansu, China
| | - Zhigang Cao
- Department of Urology, The 940th Hospital of PLA Joint Logistic Support Force, Lanzhou, Gansu, China
| | - Yafen Kang
- Department of Urology, The 940th Hospital of PLA Joint Logistic Support Force, Lanzhou, Gansu, China
| | - Wei Jiang
- Convalescent Section First of Convalescent Zone Second, Air Force Hangzhou Secret Service Rehabilitation Center, Hangzhou, Zhejiang, China
| | - Dehui Chang
- Department of Urology, The 940th Hospital of PLA Joint Logistic Support Force, Lanzhou, Gansu, China
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5
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Jordan TL, Foland-Ross LC, Wun VL, Ross JL, Reiss AL. Cognition, Academic Achievement, Adaptive Behavior, and Quality of Life in Child and Adolescent Boys with Klinefelter Syndrome. J Dev Behav Pediatr 2023; 44:e476-e485. [PMID: 37696031 DOI: 10.1097/dbp.0000000000001201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 05/25/2023] [Indexed: 09/13/2023]
Abstract
OBJECTIVE Klinefelter syndrome (KS; 47, XXY), the most common sex chromosome aneuploidy in males, is characterized by testicular failure and testosterone deficiency as well as a variety of cognitive, social, and emotional challenges. In the current study, we aimed to clarify the cognitive-behavioral profile of peripubertal boys with KS using measures of cognition, academic achievement, adaptive behavior, and quality of life. METHOD We compared 47 boys with KS (7-16 years of age) with 55 performance IQ-matched boys without KS on measures of cognition (WISC-V), executive function (BRIEF-2), academic achievement (KTEA-3), adaptive behavior (Vineland-3), and quality of life (PROMIS). In exploratory analyses, we examined associations among these measures and potential associations with pubertal metrics. RESULTS Boys with KS demonstrated a significantly different profile of cognition, behavioral ratings of executive function, academic achievement, adaptive behavior, and quality of life compared with their typically developing peers, with, on average, lower functioning. The groups showed significantly different correlations between cognition and aspects of quality of life. No associations were observed between behavior and pubertal development. CONCLUSION Taken together, these findings indicated that boys with KS are at increased risk for cognitive difficulties, which may affect academic achievement, adaptive behavior, and quality of life. Although initial exploratory analyses indicated that the magnitude of these alterations was not correlated with severity of testicular failure, longitudinal analyses currently being conducted by our group may help clarify the trajectory of these difficulties through the pubertal transition and testosterone replacement.
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Affiliation(s)
- Tracy L Jordan
- Center of Interdisciplinary Brain Sciences Research, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA
| | - Lara C Foland-Ross
- Center of Interdisciplinary Brain Sciences Research, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA
| | - Vanessa L Wun
- Department of Psychology, University of Minnesota, Minneapolis, MN
| | - Judith L Ross
- Department of Pediatrics, Division of Endocrinology, Nemours/Alfred I. duPont Hospital for Children, Wilmington, DE
| | - Allan L Reiss
- Center of Interdisciplinary Brain Sciences Research, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Stanford, CA
- Department of Radiology, Stanford University School of Medicine, Palo Alto, CA; and
- Center for Academic Medicine, Department of Pediatrics, Stanford University School of Medicine, Palo Alto, CA
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Gravholt CH, Ferlin A, Gromoll J, Juul A, Raznahan A, van Rijn S, Rogol AD, Skakkebæk A, Tartaglia N, Swaab H. New developments and future trajectories in supernumerary sex chromosome abnormalities: a summary of the 2022 3rd International Workshop on Klinefelter Syndrome, Trisomy X, and XYY. Endocr Connect 2023; 12:e220500. [PMID: 36598290 PMCID: PMC9986408 DOI: 10.1530/ec-22-0500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/04/2023] [Indexed: 01/05/2023]
Abstract
The 3rd International Workshop on Klinefelter Syndrome, Trisomy X, and 47,XYY syndrome was held in Leiden, the Netherlands, on September 12-14, 2022. Here, we review new data presented at the workshop and discuss scientific and clinical trajectories. We focus on shortcomings in knowledge and therefore point out future areas for research. We focus on the genetics and genomics of supernumerary sex chromosome syndromes with new data being presented. Most knowledge centre specifically on Klinefelter syndrome, where aspects on testosterone deficiency and the relation to bone, muscle and fat were discussed, as was infertility and the treatment thereof. Both trisomy X and 47,XYY syndrome are frequently affected by infertility. Transitioning of males with Klinefelter syndrome was addressed, as this seemingly simple process in practise is often difficult. It is now realized that neurocognitive changes are pervasive in all supernumerary sex chromosome syndromes, which were extensively discussed. New intervention projects were also described, and exciting new data concerning these were presented. Advocacy organizations were present, describing the enormous burden carried by parents when having to explain their child's specific syndrome to most professionals whenever in contact with health care and education systems. It was also pointed out that most countries do not have health care systems that diagnose patients with supernumerary sex chromosome syndromes, thus pinpointing a clear deficiency in the current genetic testing and care models. At the end of the workshop, a roadmap towards the development of new international clinical care guidelines for Klinefelter syndrome was decided.
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Affiliation(s)
- Claus H Gravholt
- Department of Endocrinology, Aarhus University Hospital, Aarhus, Denmark
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Alberto Ferlin
- Department of Medicine, Unit of Andrology and Reproductive Medicine, University of Padova, Padova, Italy
| | - Joerg Gromoll
- Centre of Reproductive Medicine and Andrology, Münster, Germany
| | - Anders Juul
- Department of Growth and Reproduction Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Armin Raznahan
- Section on Developmental Neurogenomics, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, Maryland, USA
| | - Sophie van Rijn
- Clinical Neurodevelopmental Sciences, Leiden University, Leiden, The Netherlands and TRIXY Center of Expertise, Leiden University Treatment and Expertise Centre (LUBEC), Leiden, The Netherlands
| | - Alan D Rogol
- Department of Pediatrics, University of Virginia, Charlottesville, Virginia, USA
| | - Anne Skakkebæk
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark
| | - Nicole Tartaglia
- Department of Pediatrics, Developmental Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Hanna Swaab
- Clinical Neurodevelopmental Sciences, Leiden University, Leiden, The Netherlands and TRIXY Center of Expertise, Leiden University Treatment and Expertise Centre (LUBEC), Leiden, The Netherlands
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7
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Esteban C, Ortiz-Rodz DI, Muñiz-Pérez YI, Ramírez-Vega L, Jiménez-Ricaurte C, Mattei-Torres E, Finkel-Aguilar V. Quality of Life and Psychosocial Well-Being among Intersex-Identifying Individuals in Puerto Rico: An Exploratory Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:2899. [PMID: 36833596 PMCID: PMC9957316 DOI: 10.3390/ijerph20042899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/01/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
PURPOSE Intersex is an umbrella term used to describe the diversity or differences in the characteristics of physical sexual development. Approximately 1.7% of the population are born intersex, and 1 in every 2000 babies at birth presents genital variation. Unfortunately, there is a lack of research on the health of intersex-identifying persons in Latin America. This study aimed to document experiences of discrimination and violence among self-identifying intersex individuals in Puerto Rico and to determine if there is a significant difference in the quality of life, psychological well-being, and social well-being between intersex-identifying and endosex individuals. METHODS This was a quantitative method pilot study with a cross-sectional approach and exploratory comparative group design. An online survey was used, where a total of 12 self-identifying intersex adult participants were recruited, and 126 endosex adult participants served as a comparative group. RESULTS The findings show that 83% of the participants reported experiences of discrimination and different types of violence due to their intersexuality. There was a significant difference between the intersex-identifying and endosex groups in psychological well-being, including in three of its dimensions (positives relations, autonomy, and environmental mastery). However, there were no significant differences between the groups in quality of life or social well-being. CONCLUSION The findings of this study provide a preliminary understanding of the health disparities of intersex-identifying individuals in Puerto Rico and suggest the need for more profound research, especially the inclusion of other Caribbean and Hispanic countries. The findings also preliminarily imply the need for local and global interventions to reduce physical and mental health disparities and to improve health, quality of life, and well-being among intersex-identifying individuals.
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Affiliation(s)
- Caleb Esteban
- Ponce Campus, School of Behavioral and Brain Sciences, Ponce Health Sciences University, Ponce, PR 00716, USA
| | - Derek Israel Ortiz-Rodz
- Ponce Campus, School of Behavioral and Brain Sciences, Ponce Health Sciences University, Ponce, PR 00716, USA
| | - Yesibelle I. Muñiz-Pérez
- Ponce Campus, School of Behavioral and Brain Sciences, Ponce Health Sciences University, Ponce, PR 00716, USA
| | - Luis Ramírez-Vega
- Ponce Campus, School of Behavioral and Brain Sciences, Ponce Health Sciences University, Ponce, PR 00716, USA
| | - Coral Jiménez-Ricaurte
- Ponce Campus, School of Behavioral and Brain Sciences, Ponce Health Sciences University, Ponce, PR 00716, USA
| | - Edna Mattei-Torres
- Ponce Campus, School of Behavioral and Brain Sciences, Ponce Health Sciences University, Ponce, PR 00716, USA
| | - Victoria Finkel-Aguilar
- Río Piedras Campus, Department of Psychology, University of Puerto Rico, San Juan, PR 00931, USA
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8
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Reimers R, High F, Kremen J, Wilkins-Haug L. Prenatal diagnosis of sex chromosome aneuploidy-What do we tell the prospective parents? Prenat Diagn 2023; 43:250-260. [PMID: 36316966 DOI: 10.1002/pd.6256] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 10/22/2022] [Accepted: 10/25/2022] [Indexed: 11/05/2022]
Abstract
Sex chromosome aneuploidy (SCA) can be detected on prenatal diagnostic testing and cell free DNA screening (cfDNA). High risk cfDNA results should be confirmed with diagnostic testing. This summary article serves as an update for prenatal providers and assimilates data from neurodevelopmental, epidemiologic, and registry studies on the most common SCA. This information can be helpful for counseling after prenatal diagnosis of sex chromosome aneuploidy. Incidence estimates may be influenced by ascertainment bias and this article is not a substitute for interdisciplinary consultation and counseling.
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Affiliation(s)
- Rebecca Reimers
- Division of Maternal Fetal Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Frances High
- Harvard Medical School, Boston, Massachusetts, USA
- Department of Pediatrics, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Jessica Kremen
- Harvard Medical School, Boston, Massachusetts, USA
- Maternal-Fetal Care Center, Boston Children's Hospital, Boston, Massachusetts, USA
- Division of Endocrinology, Department of Medicine, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Louise Wilkins-Haug
- Division of Maternal Fetal Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
- Maternal-Fetal Care Center, Boston Children's Hospital, Boston, Massachusetts, USA
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9
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Mehmet B, Gillard S, Jayasena CN, Llahana S. Association between domains of quality of life and patients with Klinefelter syndrome: a systematic review. Eur J Endocrinol 2022; 187:S21-S34. [PMID: 35639859 PMCID: PMC9254297 DOI: 10.1530/eje-21-1239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 05/31/2022] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Klinefelter syndrome (KS) is the second-most prevalent chromosomal disorder in men, though late diagnosis is very common and 50-75% of men remain undiagnosed. Evidence suggests that men with KS have impaired quality of life (QoL) but research on how the diagnosis of KS is associated with different QoL domains and what factors influence patients' QoL is limited. This study aimed to provide a systematic review of the published evidence on factors that influence QoL in men with KS. DESIGN Systematic review and meta-analysis with narrative synthesis. METHODS Medline, Cochrane, Embase, Psychinfo, CINAHL, BASE and relevant publication reference lists were searched in January 2021. Eligible studies included randomised control trials, cohort studies, cross-sectional studies and epidemiology studies on KS and its effect on QoL and all domains of World Health Organisation (WHO) Quality of Life 100 (WHOQOL-100). Clinical studies with no date restriction published in English were included. RESULTS Thematic analysis was completed on 13 studies, with a meta-analysis of intelligence quotient completed on 7 studies. Twelve out of the 13 studies suggested that KS negatively affected the QoL outcomes and KS was associated with impairments in physical, psychological, level independence and social relationship domains of WHOQOL-100. Meta-analysis suggested that men with KS have significantly lower full-scale Intelligence Quotient vs controls (P < 0.00001). CONCLUSIONS This is the first evidence synthesis of QoL in men with KS. Current evidence suggests that combined physical and psychological impairments affect men with KS who also experience impairments in relationships and independence in society. Further research is needed to identify factors that influence the QoL in men with KS.
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Affiliation(s)
- Brien Mehmet
- School of Health Sciences, City, University of London, London, UK
- Correspondence should be addressed to B Mehmet;
| | - Steve Gillard
- School of Health Sciences, City, University of London, London, UK
| | - Channa N Jayasena
- Section of Investigative Medicine, Imperial College London, London, UK
| | - Sofia Llahana
- School of Health Sciences, City, University of London, London, UK
- Department of Diabetes & Endocrinology, University College Hospital, London, UK
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10
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Mehmet B, McDonald IR, Saldarriaga S, Pineros-Leano M, Dwyer AA. What's missing in sex chromosome aneuploidies? Representation and inclusion. J Pediatr Nurs 2022; 62:202-204. [PMID: 35125170 DOI: 10.1016/j.pedn.2021.11.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Isabella R McDonald
- Boston College William F. Connell School of Nursing, Chestnut Hill, MA 02467, USA
| | - Sarah Saldarriaga
- Boston College William F. Connell School of Nursing, Chestnut Hill, MA 02467, USA
| | | | - Andrew A Dwyer
- Boston College William F. Connell School of Nursing, Chestnut Hill, MA 02467, USA; Munn Center for Nursing Research, Massachusetts General Hospital, Boston, MA 02114, USA.
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11
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Dwyer AA, Héritier V, Llahana S, Edelman L, Papadakis GE, Vaucher L, Pitteloud N, Hauschild M. Navigating Disrupted Puberty: Development and Evaluation of a Mobile-Health Transition Passport for Klinefelter Syndrome. Front Endocrinol (Lausanne) 2022; 13:909830. [PMID: 35813640 PMCID: PMC9264386 DOI: 10.3389/fendo.2022.909830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/19/2022] [Indexed: 11/13/2022] Open
Abstract
Klinefelter syndrome (KS) is the most common aneuploidy in men and has long-term sequelae on health and wellbeing. KS is a chronic, lifelong condition and adolescents/young adults (AYAs) with KS face challenges in transitioning from pediatric to adult-oriented services. Discontinuity of care contributes to poor outcomes for health and wellbeing and transition programs for KS are lacking. We aimed to develop and test a mobile health tool (KS Transition Passport) to educate patients about KS, encourage self-management and support successful transition to adult-oriented care. First, we conducted a retrospective chart review and patient survey to examine KS transition at a university hospital. Second, we conducted a systematic scoping review of the literature on AYAs with KS. Last, we developed a mobile health transition passport and evaluated it with patient support groups. Participants evaluated the tool using the System Usability Scale and Patient Education Materials Assessment Tool (PEMAT). Chart review identified 21 AYAs diagnosed between 3.9-16.8 years-old (median 10.2 years). The survey revealed only 4/10 (40%) were on testosterone therapy and fewer (3/10, 30%) had regular medical care. The scoping review identified 21 relevant articles highlighting key aspects of care for AYAs with KS. An interprofessional team developed the mobile-health KS transition passport using an iterative process. Support group members (n=35) rated passport usability as 'ok' to 'good' (70 ± 20, median 73.5/100). Of PEMAT dimensions, 5/6 were deemed 'high quality' (86-90/100) and participants knew what to do with the information (actionability = 83/100). In conclusion, many patients with KS appear to have gaps in transition to adult-oriented care. Iterative development of a KS transition passport produced a mobile health tool that was usable, understandable and had high ratings for actionability.
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Affiliation(s)
- Andrew A. Dwyer
- William F. Connell School of Nursing, Boston College, Chestnut Hill, MA, United States
- Endocrinology, Diabetes & Metabolism Service of the Department of Medicine, Lausanne University Hospital Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | - Vanessa Héritier
- Pediatric Endocrinology, Diabetes and Obesity Unit, Department of Women-Mother-Child, Lausanne University Hospital Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | - Sofia Llahana
- School of Health and Psychological Sciences, City University of London, London, United Kingdom
| | - Lauren Edelman
- William F. Connell School of Nursing, Boston College, Chestnut Hill, MA, United States
| | - Georgios E. Papadakis
- Endocrinology, Diabetes & Metabolism Service of the Department of Medicine, Lausanne University Hospital Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | - Laurent Vaucher
- Reproductive Medicine Unit, Department of Obstetrics and Gynecology, Lausanne University Hospital Centre Hospitalier Universitaire Vaudois Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | - Nelly Pitteloud
- Endocrinology, Diabetes & Metabolism Service of the Department of Medicine, Lausanne University Hospital Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | - Michael Hauschild
- Pediatric Endocrinology, Diabetes and Obesity Unit, Department of Women-Mother-Child, Lausanne University Hospital Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
- *Correspondence: Michael Hauschild,
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12
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Pook CJ, Cocca A, Grandone A, Al-Hussini M, Lam W. The Evidence for Fertility Preservation in Pediatric Klinefelter Syndrome. FRONTIERS IN REPRODUCTIVE HEALTH 2021; 3:629179. [PMID: 36304035 PMCID: PMC9580826 DOI: 10.3389/frph.2021.629179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 06/28/2021] [Indexed: 11/22/2022] Open
Abstract
Klinefelter syndrome (KS) is a common cause of non-obstructive azoospermia (NOA). Advances in fertility preservation (FP) techniques, such as the use of microdissection testicular sperm extraction (micro-TESE), have improved sperm retrieval rates (SRR) up to 40–50% in this population. Age has been suggested to have an impact on FP, postulating that sperm production may deteriorate over time due to germ cell loss. As such, sperm retrieval for patients with KS at a younger age has been proposed to further improve SRR; however, whether such practice pragmatically improves SRR is yet to be determined, and controversy remains with concerns over trauma caused by FP procedures on further impairment of testicular function. There has also been a debate on the ethics of performing FP procedures in the pediatric population. Optimizing FP for patients with KS invariably requires a holistic multidisciplinary approach. This review aimed to evaluate the latest evidence in performing FP in pediatric patients with KS, and discuss the controversy surrounding such practice. Hormonal changes in patients with KS during childhood and the use of hormonal manipulation to optimize SSR in this population have also been reviewed.
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Affiliation(s)
- Celina J. Pook
- Department of Urology, Guy's and St Thomas' National Health Service (NHS) Foundation Trust, London, United Kingdom
- GKT School of Medical Education, King's College London, London, United Kingdom
| | - Alessandra Cocca
- Paediatric Endocrine and Diabetes Department, Evelina London Children's Hospital, Guy's and St Thomas' National Health Service (NHS) Foundation Trust, London, United Kingdom
| | - Anna Grandone
- Department of Woman, Child, General and Specialized Surgery, Università degli Studi della Campania Luigi Vanvitelli, Naples, Italy
| | - Mohamed Al-Hussini
- Department of Urology, Guy's and St Thomas' National Health Service (NHS) Foundation Trust, London, United Kingdom
| | - Wayne Lam
- Division of Urology, Department of Surgery, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
- *Correspondence: Wayne Lam
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13
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Connor J, Atkinson C. Educational psychologists’ experiences of supporting intersex children and young people. EDUCATIONAL PSYCHOLOGY IN PRACTICE 2021. [DOI: 10.1080/02667363.2021.1890548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Julie Connor
- Manchester Institute of Education, Ellen Wilkinson Building, University of Manchester, Manchester, UK
| | - Cathy Atkinson
- Manchester Institute of Education, Ellen Wilkinson Building, University of Manchester, Manchester, UK
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14
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Cho HH. Clinical manifestation, diagnosis, and treatment of Klinefelter syndrome. JOURNAL OF THE KOREAN MEDICAL ASSOCIATION 2020. [DOI: 10.5124/jkma.2020.63.9.548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Klinefelter syndrome is the most common congenital chromosomal syndrome in men. Clinical manifestations of Klinefelter syndrome vary greatly depending on the level of expression of the added X chromosome, the sensitivity of the androgen receptor, and the testosterone level. On average, the likelihood of a lifetime diagnosis of Klinefelter syndrome patients is less than 40%, and more than 60% of patients are unaware of their condition. Klinefelter syndrome patients in infancy sometimes have speech impairment; however, there are more cases without symptoms. In the early stages of puberty, there are many normal puberty development cases, but after mid-puberty, secondary sexual characteristics stop progressing. In adulthood, it is often diagnosed as a non-obstructive azoospermia disease. After middle-age, an increase in various metabolic disorders due to testosterone reduction appears as the main symptom. Testosterone treatment can promote the development of secondary sexual characteristics from puberty. Diagnosing a patient with Klinefelter syndrome due to infertility in adulthood may cause a psychological shock; therefore, a psychotherapeutic approach is also essential. Klinefelter syndrome is a disease that requires lifelong management, and in most cases the quality of life of patients and their families can be improved with appropriate therapeutic intervention. Because there are many cases without symptoms, it is important to screen suspected patients through active chromosomal testing.
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15
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Tartaglia N, Howell S, Davis S, Kowal K, Tanda T, Brown M, Boada C, Alston A, Crawford L, Thompson T, van Rijn S, Wilson R, Janusz J, Ross J. Early neurodevelopmental and medical profile in children with sex chromosome trisomies: Background for the prospective eXtraordinarY babies study to identify early risk factors and targets for intervention. AMERICAN JOURNAL OF MEDICAL GENETICS PART C-SEMINARS IN MEDICAL GENETICS 2020; 184:428-443. [PMID: 32506668 DOI: 10.1002/ajmg.c.31807] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/13/2020] [Accepted: 05/13/2020] [Indexed: 01/03/2023]
Abstract
Sex chromosome trisomies (SCT), including Klinefelter syndrome/XXY, Trisomy X, and XYY syndrome, occur in 1 of every 500 births. The past decades of research have resulted in a broadening of known associated medical comorbidities as well as advances in psychological research. This review summarizes what is known about early neurodevelopmental, behavioral, and medical manifestations in young children with SCT. We focus on recent research and unanswered questions related to the risk for neurodevelopmental disorders that commonly present in the first years of life and discuss the medical and endocrine manifestations of SCT at this young age. The increasing rate of prenatal SCT diagnoses provides the opportunity to address gaps in the existing literature in a new birth cohort, leading to development of the eXtraordinarY Babies Study. This study aims to better describe and compare the natural history of SCT conditions, identify predictors of positive and negative outcomes in SCT, evaluate developmental and autism screening measures commonly used in primary care practices for the SCT population, and build a rich data set linked to a bank of biological samples for future study. Results from this study and ongoing international research efforts will inform evidence-based care and improve health and neurodevelopmental outcomes.
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Affiliation(s)
- Nicole Tartaglia
- eXtraordinarY Kids Clinic, Children's Hospital Colorado, Aurora, Colorado, USA.,Developmental Pediatrics, University of Colorado School of Medicine Department of Pediatrics, Aurora, Colorado, USA
| | - Susan Howell
- eXtraordinarY Kids Clinic, Children's Hospital Colorado, Aurora, Colorado, USA.,Developmental Pediatrics, University of Colorado School of Medicine Department of Pediatrics, Aurora, Colorado, USA
| | - Shanlee Davis
- eXtraordinarY Kids Clinic, Children's Hospital Colorado, Aurora, Colorado, USA.,Pediatric Endocrinology, University of Colorado School of Medicine Department of Pediatrics, Aurora, Colorado, USA
| | - Karen Kowal
- Department of Pediatric Endocrinology, Nemours-Dupont Hospital for Children, Wilmington, Delaware, USA.,Department of Pediatrics, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Tanea Tanda
- Developmental Pediatrics, University of Colorado School of Medicine Department of Pediatrics, Aurora, Colorado, USA
| | - Mariah Brown
- Developmental Pediatrics, University of Colorado School of Medicine Department of Pediatrics, Aurora, Colorado, USA.,Pediatric Endocrinology, University of Colorado School of Medicine Department of Pediatrics, Aurora, Colorado, USA
| | - Cristina Boada
- Developmental Pediatrics, University of Colorado School of Medicine Department of Pediatrics, Aurora, Colorado, USA
| | - Amanda Alston
- Department of Pediatric Endocrinology, Nemours-Dupont Hospital for Children, Wilmington, Delaware, USA.,Department of Pediatrics, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Leah Crawford
- Developmental Pediatrics, University of Colorado School of Medicine Department of Pediatrics, Aurora, Colorado, USA
| | - Talia Thompson
- Developmental Pediatrics, University of Colorado School of Medicine Department of Pediatrics, Aurora, Colorado, USA
| | - Sophie van Rijn
- Clinical Neurodevelopment Sciences, Leiden University, Leiden, The Netherlands.,Leiden Institute for Brain and Cognition, Leiden, The Netherlands
| | - Rebecca Wilson
- eXtraordinarY Kids Clinic, Children's Hospital Colorado, Aurora, Colorado, USA.,Developmental Pediatrics, University of Colorado School of Medicine Department of Pediatrics, Aurora, Colorado, USA
| | - Jennifer Janusz
- eXtraordinarY Kids Clinic, Children's Hospital Colorado, Aurora, Colorado, USA.,Neurology and Neuropsychology, University of Colorado School of Medicine Department of Pediatrics, Aurora, Colorado, USA
| | - Judith Ross
- Pediatric Endocrinology, University of Colorado School of Medicine Department of Pediatrics, Aurora, Colorado, USA.,Department of Pediatric Endocrinology, Nemours-Dupont Hospital for Children, Wilmington, Delaware, USA
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16
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Berglund A, Stochholm K, Gravholt CH. The epidemiology of sex chromosome abnormalities. AMERICAN JOURNAL OF MEDICAL GENETICS PART C-SEMINARS IN MEDICAL GENETICS 2020; 184:202-215. [PMID: 32506765 DOI: 10.1002/ajmg.c.31805] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/11/2020] [Accepted: 05/11/2020] [Indexed: 12/19/2022]
Abstract
Sex chromosome abnormalities (SCAs) are characterized by gain or loss of entire sex chromosomes or parts of sex chromosomes with the best-known syndromes being Turner syndrome, Klinefelter syndrome, 47,XXX syndrome, and 47,XYY syndrome. Since these syndromes were first described more than 60 years ago, several papers have reported on diseases and health related problems, neurocognitive deficits, and social challenges among affected persons. However, the generally increased comorbidity burden with specific comorbidity patterns within and across syndromes as well as early death of affected persons was not recognized until the last couple of decades, where population-based epidemiological studies were undertaken. Moreover, these epidemiological studies provided knowledge of an association between SCAs and a negatively reduced socioeconomic status in terms of education, income, retirement, cohabitation with a partner and parenthood. This review is on the aspects of epidemiology in Turner, Klinefelter, 47,XXX and 47,XYY syndrome.
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Affiliation(s)
- Agnethe Berglund
- Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark.,Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Kirstine Stochholm
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Claus Højbjerg Gravholt
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark.,Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
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17
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Chang S, Skakkebæk A, Davis SM, Gravholt CH. Morbidity in Klinefelter syndrome and the effect of testosterone treatment. AMERICAN JOURNAL OF MEDICAL GENETICS. PART C, SEMINARS IN MEDICAL GENETICS 2020; 184:344-355. [PMID: 32496001 PMCID: PMC7413637 DOI: 10.1002/ajmg.c.31798] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 04/26/2020] [Accepted: 04/28/2020] [Indexed: 12/16/2022]
Abstract
Klinefelter syndrome (KS; 47,XXY) is the most common sex chromosome abnormality in males (150 per 100,000 males). The condition leads to hypergonadotropic hypogonadism and ever since the condition was described approximately 80 years ago, testosterone treatment has been the cornerstone in care for individuals with KS. However, KS is associated with an array of health-related and socioeconomic challenges and it is becoming progressively clear that proper care for boys and men with KS reaches far beyond simply supplementing with testosterone. There are no widely implemented guidelines for KS care, and studies investigating crucial aspects of testosterone treatment in individuals with KS, including both beneficial and potentially adverse effects, have only begun to emerge during the last decades. For this descriptive review, we present an overview of literature describing health-related outcomes of testosterone treatment in KS and outline the clinical applications of testosterone treatment in KS. Collectively, beneficial effects of testosterone treatment on overall health in KS are described with few apparent adverse effects. However, larger randomized studies in adult and pediatric patients are warranted to elucidate key aspects of treatment. We stress the implementation of centralized multidisciplinary clinics and the need for a dedicated international guideline to ensure optimal care of boys and men with KS.
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Affiliation(s)
- Simon Chang
- Department of Endocrinology and Internal Medicine, Aarhus university Hospital, Aarhus, Denmark
- Department of Internal Medicine, Lillebaelt Hospital, Kolding, Denmark
- Unit for Thrombosis Research, Hospital of South West Jutland, Esbjerg, Denmark
| | - Anne Skakkebæk
- Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Shanlee M Davis
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado
- eXtraordinarY Kids Clinic and Research Program, Children’s Hospital Colorado, Aurora, Colorado
| | - Claus H Gravholt
- Department of Endocrinology and Internal Medicine, Aarhus university Hospital, Aarhus, Denmark
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark
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18
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Abstract
Klinefelter syndrome can present as a wide spectrum of clinical manifestations at various stages in life, making it a chromosomal disorder with no standardized set of guidelines for appropriate management. Understanding the genetic and hormonal causes of this syndrome can allow physicians to treat each patient on a more individualized basis. The timing of diagnosis and degree of symptoms can guide management. This report will provide an updated review of the clinical presentation at various stages in life and the implications for management.
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Affiliation(s)
- Priyanka Bearelly
- Urology, Boston University School of Medicine, 725 Albany Street, Suite 3B, Boston, MA, 02118, USA
| | - Robert Oates
- Urology, Boston University School of Medicine, 725 Albany Street, Suite 3B, Boston, MA, 02118, USA
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19
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Hanna ES, Cheetham T, Fearon K, Herbrand C, Hudson N, McEleny K, Quinton R, Stevenson E, Wilkes S. The Lived Experience of Klinefelter Syndrome: A Narrative Review of the Literature. Front Endocrinol (Lausanne) 2019; 10:825. [PMID: 32038476 PMCID: PMC6988792 DOI: 10.3389/fendo.2019.00825] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Accepted: 11/11/2019] [Indexed: 11/13/2022] Open
Affiliation(s)
- Esmée Sinéad Hanna
- Centre for Reproduction Research, De Montfort University, Leicester, United Kingdom
- *Correspondence: Esmée Sinéad Hanna
| | - Tim Cheetham
- Newcastle Hospitals, Newcastle upon Tyne, United Kingdom
| | - Kristine Fearon
- Centre for Reproduction Research, De Montfort University, Leicester, United Kingdom
| | - Cathy Herbrand
- Centre for Reproduction Research, De Montfort University, Leicester, United Kingdom
| | - Nicky Hudson
- Centre for Reproduction Research, De Montfort University, Leicester, United Kingdom
| | - Kevin McEleny
- Newcastle Hospitals, Newcastle upon Tyne, United Kingdom
| | | | | | - Scott Wilkes
- School of Medicine, University of Sunderland, Sunderland, United Kingdom
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20
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Flannigan R, Patel P, Paduch DA. Klinefelter Syndrome. The Effects of Early Androgen Therapy on Competence and Behavioral Phenotype. Sex Med Rev 2018; 6:595-606. [DOI: 10.1016/j.sxmr.2018.02.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 01/21/2018] [Accepted: 02/02/2018] [Indexed: 01/06/2023]
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21
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Gravholt CH, Chang S, Wallentin M, Fedder J, Moore P, Skakkebæk A. Klinefelter Syndrome: Integrating Genetics, Neuropsychology, and Endocrinology. Endocr Rev 2018; 39:389-423. [PMID: 29438472 DOI: 10.1210/er.2017-00212] [Citation(s) in RCA: 121] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 02/05/2018] [Indexed: 01/15/2023]
Abstract
Although first identified over 70 years ago, Klinefelter syndrome (KS) continues to pose substantial diagnostic challenges, as many patients are still misdiagnosed, or remain undiagnosed. In fact, as few as 25% of patients with KS are accurately diagnosed and most of these diagnoses are not made until adulthood. Classic characteristics of KS include small testes, infertility, hypergonadothropic hypogonadism, and cognitive impairment. However, the pathophysiology behind KS is not well understood, although genetic effects are also thought to play a role. For example, recent developments in genetics and genomics point to a fundamental change in our understanding of KS, with global epigenetic and RNA expression changes playing a central role for the phenotype. KS is also associated with more general health markers, including higher morbidity and mortality rates and lower socioeconomic status (which likely affect both morbidity and mortality). In addition, hypogonadism is associated with greater risk of metabolic syndrome, type 2 diabetes, cardiovascular disease, breast cancer, and extragonadal germ cell tumors. Medical treatment typically focuses on testosterone replacement therapy (TRT), although the effects of this therapy have not been studied rigorously, and future studies need to evaluate the effects of TRT on metabolic risk and neurocognitive outcomes. This review presents a comprehensive interdisciplinary examination of recent developments in genetic, endocrine, and neurocognitive science, including the study of animal models. It provides a number of recommendations for improving the effectiveness of research and clinical practice, including neonatal KS screening programs, and a multidisciplinary approach to KS treatment from childhood until senescence.
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Affiliation(s)
- Claus H Gravholt
- Department of Endocrinology and Internal Medicine (MEA), Aarhus University Hospital, Aarhus C, Denmark.,Department of Molecular Medicine, Aarhus University Hospital, Aarhus N, Denmark
| | - Simon Chang
- Department of Endocrinology and Internal Medicine (MEA), Aarhus University Hospital, Aarhus C, Denmark.,Department of Clinical Biochemistry, Esbjerg Sygehus, Esbjerg, Denmark
| | - Mikkel Wallentin
- Department of Linguistics, Cognitive Science, and Semiotics, Aarhus University, Aarhus C, Denmark.,Center of Functionally Integrative Neuroscience, Aarhus University Hospital, Aarhus C, Denmark
| | - Jens Fedder
- Centre of Andrology and Fertility Clinic, Department of Gynaecology and Obstetrics, Odense University Hospital, Odense C, Denmark
| | - Philip Moore
- Department of Psychology, The George Washington University, Washington DC
| | - Anne Skakkebæk
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus N, Denmark.,Department of Clinical Genetics, Aarhus University Hospital, Aarhus N, Denmark
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22
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Affiliation(s)
- Sally S Cohen
- New York University Rory Meyers College of Nursing, New York, NY, USA.
| | - Andrew Dwyer
- Connell School of Nursing, Boston College, Chestnut Hill, MA, USA
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23
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Liberato D, Granato S, Grimaldi D, Rossi FM, Tahani N, Gianfrilli D, Anzuini A, Lenzi A, Cavaggioni G, Radicioni AF. Fluid intelligence, traits of personality and personality disorders in a cohort of adult KS patients with the classic 47, XXY karyotype. J Endocrinol Invest 2017; 40:1191-1199. [PMID: 28401527 DOI: 10.1007/s40618-017-0674-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 04/05/2017] [Indexed: 11/25/2022]
Abstract
PURPOSE Klinefelter's syndrome (KS) is associated with specific neurobehavioral features and personality traits. The aim of our study was to investigate fluid intelligence, personality traits and personality disorders (PD) and possible correlations with testosterone in a cohort of adult KS patients. METHODS We analyzed 58 adult KS patients with the classic 47, XXY karyotype. The Structured Clinical Interview for axis II disorders was used to assess DSM IV personality disorders. Personality traits were assessed using MMPI-2. Fluid intelligence was tested by using Raven's Standard Progressive Matrices (SPM) Test. Testosterone blood concentration was measured by CMIA. RESULTS PD prevalence was 31%. Four altered MMPI scales (Social Responsibility, Dominance, Ego Strength and Repression) were found in more than 40% of patients. Overcontrolled hostility and MacAndrew Alcoholism Scale-Revised scales were altered in the PD- group only. Biz-Odd Thinking and Post-Traumatic Stress Disorder scale were associated with the presence of personality disorder. The raw SPM score was 44 ± 10.8 without any significant correlation with testosterone. No significant difference in mean age, SPM raw score and MMPI score was observed between eugonadal, hypogonadal and treated patients. CONCLUSIONS Most KS patients had average fluid intelligence. PD prevalence was higher than in the general population. Testosterone was not correlated with fluid intelligence, personality traits or PD, but a reduction in marital distress was observed in treated patients. This could suggest that testosterone therapy can improve physical symptoms and this effect could also improve relationship abilities and wellness awareness.
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Affiliation(s)
- D Liberato
- Department of Neurology and Psychiatry, Sapienza University of Rome, Rome, Italy
| | - S Granato
- Section of Medical Pathophysiology and Endocrinology, Department of Experimental Medicine, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy.
| | - D Grimaldi
- Department of Neurology and Psychiatry, Sapienza University of Rome, Rome, Italy
| | - F M Rossi
- Section of Medical Pathophysiology and Endocrinology, Department of Experimental Medicine, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy
| | - N Tahani
- Section of Medical Pathophysiology and Endocrinology, Department of Experimental Medicine, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy
| | - D Gianfrilli
- Section of Medical Pathophysiology and Endocrinology, Department of Experimental Medicine, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy
| | - A Anzuini
- Section of Medical Pathophysiology and Endocrinology, Department of Experimental Medicine, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy
| | - A Lenzi
- Section of Medical Pathophysiology and Endocrinology, Department of Experimental Medicine, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy
| | - G Cavaggioni
- Department of Neurology and Psychiatry, Sapienza University of Rome, Rome, Italy
| | - A F Radicioni
- Section of Medical Pathophysiology and Endocrinology, Department of Experimental Medicine, Sapienza University of Rome, Viale del Policlinico 155, 00161, Rome, Italy
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Skakkebæk A, Moore PJ, Chang S, Fedder J, Gravholt CH. Quality of life in men with Klinefelter syndrome: the impact of genotype, health, socioeconomics, and sexual function. Genet Med 2017; 20:214-222. [DOI: 10.1038/gim.2017.110] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 06/06/2017] [Indexed: 11/09/2022] Open
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Ross JL, Kushner H, Kowal K, Bardsley M, Davis S, Reiss AL, Tartaglia N, Roeltgen D. Androgen Treatment Effects on Motor Function, Cognition, and Behavior in Boys with Klinefelter Syndrome. J Pediatr 2017; 185:193-199.e4. [PMID: 28285751 PMCID: PMC6754744 DOI: 10.1016/j.jpeds.2017.02.036] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 11/23/2016] [Accepted: 02/10/2017] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To examine the effects of early low-dose androgen on motor, cognitive, and behavioral function in prepubertal boys with Klinefelter syndrome (47,XXY). STUDY DESIGN Double-blind trial of 84 boys, ages 4-12 years, randomized to oxandrolone (Ox; 0.06?mg/kg daily; n?=?43) or placebo (Pl; n?=?41) for 24 months. Standardized assessments were performed at baseline and every 12 months for 24 months evaluating motor, cognitive, and behavioral function. RESULTS The 24-month outcomes were better in the Ox vs. Pl group on 1 of 5 primary endpoints (motor function/strength): Bruininks Visual-Motor scale (P?=?.005), without significant differences between the 2 groups for the other 4 components. Secondary analyses suggested improvement in the Ox vs. Pl group in the anxiety/depression (P?=?.03) and social problems (P?=?.01) scales on the Child Behavior Checklist, anxiety (P?=?.04) on the Piers Harris Self Concept Scale, and interpersonal problems (P?=?.02) on the Children's Depression Inventory, without significant differences in hyperactive or aggressive behaviors. CONCLUSIONS This double-blind, randomized trial demonstrates that 24 months of childhood low-dose androgen treatment in boys with Klinefelter syndrome benefited 1 of 5 primary endpoints (visual-motor function). Secondary analyses demonstrated positive effects of androgen on aspects of psychosocial function (anxiety, depression, social problems), without significant effects on cognitive function, or hyperactive or aggressive behaviors. TRIAL REGISTRATION ClinicalTrials.gov: NCT00348946.
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Affiliation(s)
- Judith L Ross
- Thomas Jefferson University, Department of Pediatrics, Philadelphia, PA; A.I. DuPont Hospital for Children, Wilmington, DE.
| | | | - Karen Kowal
- Thomas Jefferson University, Department of Pediatrics, Philadelphia, PA; A.I. DuPont Hospital for Children, Wilmington, DE
| | - Martha Bardsley
- Thomas Jefferson University, Department of Pediatrics, Philadelphia, PA; A.I. DuPont Hospital for Children, Wilmington, DE
| | - Shanlee Davis
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Allan L Reiss
- Department of Psychiatry, Stanford University, Palo Alto, CA
| | - Nicole Tartaglia
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
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Turriff A, Macnamara E, Levy HP, Biesecker B. The Impact of Living with Klinefelter Syndrome: A Qualitative Exploration of Adolescents and Adults. J Genet Couns 2016; 26:728-737. [PMID: 27832510 DOI: 10.1007/s10897-016-0041-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 10/20/2016] [Indexed: 11/28/2022]
Abstract
Klinefelter syndrome (XXY) is a common yet significantly underdiagnosed condition with considerable medical, psychological and social implications. Many health care providers lack familiarity with XXY, resulting in medical management challenges and a limited understanding of the personal impact of the condition. Genetic counselors benefit from understanding the challenges adolescents and men with XXY face to effectively address their medical and psychosocial needs. The purpose of this study was to understand the impact of living with XXY as an adolescent or an adult. Individuals aged 14 to 75 years with self-reported XXY were recruited from online support networks to complete a web-based survey that included open-ended questions. Open-ended responses were coded and analyzed thematically (n = 169 to 210 for each open-ended question). Over half of respondents to the open-ended questions reported challenges in finding health care providers who are knowledgeable about XXY, with many describing an extensive diagnostic odyssey and relief when receiving a diagnosis. Individuals sought support coping with the challenges they face and acknowledgement of the positive aspects of XXY. Recommendations are made for how genetic counseling can enhance quality of life for individuals living with XXY.
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Affiliation(s)
- Amy Turriff
- Ophthalmic Genetics & Visual Function Branch, National Eye Institute, National Institutes of Health, 10 Center Drive MSC 1860, Building 10, Room 10N226, Bethesda, MD, 20892, USA.
| | - Ellen Macnamara
- Office of the Clinical Director, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
| | - Howard P Levy
- Department of Medicine and McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Barbara Biesecker
- Social and Behavioral Research Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
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Davis S, Howell S, Wilson R, Tanda T, Ross J, Zeitler P, Tartaglia N. Advances in the Interdisciplinary Care of Children with Klinefelter Syndrome. Adv Pediatr 2016; 63:15-46. [PMID: 27426894 PMCID: PMC5340500 DOI: 10.1016/j.yapd.2016.04.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shanlee Davis
- Department of Pediatrics, University of Colorado School of Medicine, 13123 East 16th Avenue, Aurora, CO 80045, USA; Department of Endocrinology, Children's Hospital Colorado, University of Colorado School of Medicine, 13123 East 16th Avenue B265, Aurora, CO 80045, USA
| | - Susan Howell
- Department of Pediatrics, University of Colorado School of Medicine, 13123 East 16th Avenue, Aurora, CO 80045, USA; Developmental Pediatrics, Children's Hospital Colorado, University of Colorado School of Medicine, 13123 East 16th Avenue B140, Aurora, CO 80045, USA
| | - Rebecca Wilson
- Developmental Pediatrics, Children's Hospital Colorado, University of Colorado School of Medicine, 13123 East 16th Avenue B140, Aurora, CO 80045, USA
| | - Tanea Tanda
- Department of Pediatrics, University of Colorado School of Medicine, 13123 East 16th Avenue, Aurora, CO 80045, USA; Developmental Pediatrics, Children's Hospital Colorado, University of Colorado School of Medicine, 13123 East 16th Avenue B140, Aurora, CO 80045, USA
| | - Judy Ross
- Department of Pediatrics, Thomas Jefferson University School of Medicine, 833 Chestnut Street, Philadelphia, PA 19107, USA; Pediatric Endocrinology, Nemours A.I. DuPont Hospital for Children, 1600 Rockland Road, Wilmington, DE 19803, USA
| | - Philip Zeitler
- Department of Pediatrics, University of Colorado School of Medicine, 13123 East 16th Avenue, Aurora, CO 80045, USA; Department of Endocrinology, Children's Hospital Colorado, University of Colorado School of Medicine, 13123 East 16th Avenue B265, Aurora, CO 80045, USA
| | - Nicole Tartaglia
- Department of Pediatrics, University of Colorado School of Medicine, 13123 East 16th Avenue, Aurora, CO 80045, USA; Developmental Pediatrics, Children's Hospital Colorado, University of Colorado School of Medicine, 13123 East 16th Avenue B140, Aurora, CO 80045, USA.
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Franik S, Hoeijmakers Y, D'Hauwers K, Braat DDM, Nelen WLM, Smeets D, Claahsen-van der Grinten HL, Ramos L, Fleischer K. Klinefelter syndrome and fertility: sperm preservation should not be offered to children with Klinefelter syndrome. Hum Reprod 2016; 31:1952-9. [PMID: 27412247 DOI: 10.1093/humrep/dew179] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Accepted: 06/20/2016] [Indexed: 12/13/2022] Open
Abstract
STUDY QUESTION Should fertility preservation be offered to children with Klinefelter syndrome (KS)? SUMMARY ANSWER Current evidence shows that fertility preservation should not be offered to adolescents with KS younger than 16 years because of lower retrieval rates for germ cells by testicular sperm extraction (TESE) compared with retrieval rates for adolescents and adults between 16 and 30 years. WHAT IS KNOWN ALREADY KS, the most common chromosomal disorder in men leading to non-obstructive azoospermia, is caused by the presence of at least one additional X chromosome. The onset of puberty in adolescents with KS leads to progressive degeneration of the testicular environment. The impact of the subsequent tissue degeneration on fertility potential of patients with KS is unknown, but in previous literature it has been suggested that fertility preservation should be started in adolescents as early as possible. However spermatozoa can be found by TESE in about 50% of adults with KS despite severe testicular degeneration. This review discusses the current evidence for fertility preservation in children and adolescents and possible prognostic markers for fertility treatment in KS. STUDY DESIGN, SIZE, DURATION An extensive literature search was conducted, searching Pubmed, Embase, Cinahl and Web of Science from origin until April 2016 for 'Klinefelter syndrome' and 'fertility' and various synonyms. Titles and abstracts have been scanned manually by the authors for eligibility. PARTICIPANTS/MATERIALS, SETTING, METHODS In total 76 studies were found to be eligible for inclusion in this review. Information from the papers was extracted separately by two authors. MAIN RESULTS AND THE ROLE OF CHANCE Various studies have shown that pre-pubertal children with KS already have a reduced number of germ cells despite a normal hormonal profile during childhood. The presence of spermatozoa in the ejaculate of adolescents with KS is extremely rare. Using TESE, the retrieval rates of spermatozoa for adolescents younger than 16 years old are much lower (0-20%) compared with those for adolescents and young adults between 16 and 30 years old (40-70%). Although spermatogonia can be found by TESE in about half of the peri-pubertal adolescents, there are currently no clinically functional techniques for their future use. Children and adolescents need to be informed that early fertility preservation before the age of 16 cannot guarantee fertility later in life and may even reduce the chances for offspring by removing functional immature germ cells which may possibly develop into spermatozoa after puberty. Furthermore, except for the age of patients with KS, there are no identified factors that can reliably be used as a predictive marker for fertility preservation. LIMITATIONS, REASONS FOR CAUTION Most of the evidence presented in this review is based on studies including a small number of adolescents with KS. Therefore, the studies may have been underpowered to detect clinically significant differences for their various outcomes, especially for potential predictive factors for fertility preservation, such as hormone levels. Furthermore, the population of patients with KS diagnosed during childhood might be different from the adult population with KS where the diagnosis is based on infertility. Results based on comparisons between the two groups must be interpreted with caution. WIDER IMPLICATIONS OF THE FINDINGS Despite the limitations, this review summarizes the current evidence for managing fertility preservation in patients with KS to provide optimal health care. STUDY FUNDING/COMPETING INTERESTS There was no funding for this study. S.F., Y.H., K.D., W.L.M.N., D.S., H.L.C.-v.d.G. and L.R. declare to have no conflicts of interests. D.D.M.B. reports grants from Merck Serono, grants from Ferring and grants from MSD, outside the submitted work. K.F. reports personal fees from MSD (commercial sponsor), personal fees from Ferring (commercial sponsor), grants from Merck-Serono (commercial sponsor), grants from Ferring (commercial sponsor) and grants from MSD (commercial sponsor), outside the submitted work.
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Affiliation(s)
- S Franik
- Department of Obstetrics and Gynaecology, Radboudumc Nijmegen, Nijmegen, The Netherlands
| | - Y Hoeijmakers
- Department of Obstetrics and Gynaecology, Radboudumc Nijmegen, Nijmegen, The Netherlands
| | - K D'Hauwers
- Department of Urology, Radboudumc Nijmegen, Nijmegen, The Netherlands
| | - D D M Braat
- Department of Obstetrics and Gynaecology, Radboudumc Nijmegen, Nijmegen, The Netherlands
| | - W L M Nelen
- Department of Obstetrics and Gynaecology, Radboudumc Nijmegen, Nijmegen, The Netherlands
| | - D Smeets
- Department of Genetics, Radboudumc Nijmegen, Nijmegen, The Netherlands
| | | | - L Ramos
- Department of Obstetrics and Gynaecology, Radboudumc Nijmegen, Nijmegen, The Netherlands
| | - K Fleischer
- Department of Obstetrics and Gynaecology, Radboudumc Nijmegen, Nijmegen, The Netherlands
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Nahata L, Yu RN, Cohen LE. Klinefelter syndrome: fertility considerations and gaps in knowledge. Transl Pediatr 2016; 5:183-184. [PMID: 27709101 PMCID: PMC5035763 DOI: 10.21037/tp.2016.06.06] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Leena Nahata
- Division of Endocrinology, Nationwide Children's Hospital, 700 Children's Dr, Columbus, USA
| | - Richard N Yu
- Department of Urology, Boston Children's Hospital, Boston, MA, USA
| | - Laurie E Cohen
- Division of Endocrinology, Boston Children's Hospital, Boston, MA, USA
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