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Pubertal Suppression in Transgender Youth

Pubertal Suppression in Transgender Youth

Courtney Finlayson

(2018)

Additional Information

Book Details

Abstract

Offering current guidelines on the relatively new practice of puberty suppression for gender-dysphoric adolescents, Pubertal Suppression in Transgender Youth provides a succinct, easy-to-digest overview of this timely topic. This concise, clinically-focused resource by Dr. Courtney Finlayson covers all relevant topics, from a brief history of medical care of transgender youth to emerging developments in the field.


Table of Contents

Section Title Page Action Price
Front Cover Cover
Pubertal Suppression in Transgender Youth i
Pubertal Suppression in Transgender Youth iii
Copyright iv
List of Contributors v
Contents vii
1 - History of Care of Transgender Youth 1
DEDICATION 4
REFERENCES 4
2 - Models of Care and Current Guidelines for Care of Transgender Individuals 5
GENDER-AFFIRMING CARE 5
MULTIDISCIPLINARY CARE 6
PRACTICE GUIDELINES 6
MENTAL HEALTHCARE 6
MEDICAL CARE 8
ADJUNCTIVE SERVICES 9
BARRIERS TO CARE 10
SUMMARY 11
REFERENCES 11
3 - Puberty 13
PHYSICAL CHANGES ASSOCIATED WITH PUBERTY 13
Female Changes 13
Male Changes 15
Age at Onset 15
Growth Spurt 16
Changes in Body Composition 16
Other Changes of Puberty 16
PHYSIOLOGY OF PUBERTY 16
Endocrine Changes From Fetal Life to Puberty 16
Changes at Birth and the Mini Puberty of INFANCY 17
The Juvenile Pause or the Mid-Childhood Nadir of Gonadotropin Secretion 17
Peripubertal Gonadotropin Increase 17
Sex Steroid Secretion 18
Gonadotropin-Releasing Hormone Stimulation 18
Leptin and Puberty 19
Ovulation and Menarche 19
Adrenarche 20
DELAYED PUBERTY OR ABSENT PUBERTY (SEXUAL INFANTILISM) 20
Constitutional Delay in Growth and Adolescence 20
Hypogonadotropic Hypogonadism 20
Central nervous system disorders 20
Other acquired central nervous system disorders 20
Developmental defects 21
Radiation therapy 21
Isolated gonadotropin deficiency 21
Idiopathic hypopituitary dwarfism (growth hormone deficiency in the absence of defined anatomic or organic defects) 21
Miscellaneous disorders 21
Chronic disease and malnutrition 21
Anorexia nervosa 21
Increased physical activity 22
Hypothyroidism 22
Hypergonadotropic Hypogonadism 22
PRECOCIOUS PUBERTY (SEXUAL PRECOCITY) 22
Central (Complete or True) Precocious Puberty 22
Idiopathic central (complete or true) isosexual precociious puberty 22
Genetic causes of central precocious puberty 22
Peripheral or Incomplete Isosexual Precocious Puberty 23
Peripheral or incomplete isosexual precocious puberty in genotypic females 23
Variations of Puberty 23
Premature thelarche 23
Premature adrenarche 23
FURTHER READING 23
4 - GnRH Analogs (Mechanism, Past Studies, Drug Options, Use in Precocious Puberty, Use in Gender-Nonconforming Youth) 25
HISTORICAL PERSPECTIVE 25
PHYSIOLOGY AND MECHANISM OF ACTION 26
USE IN CENTRAL PRECOCIOUS PUBERTY 26
OUTCOMES IN CENTRAL PRECOCIOUS PUBERTY 27
USE IN GENDER-NONCONFORMING YOUTH 28
OPTIONS FOR TREATMENT 29
OUTCOMES IN GENDER-NONCONFORMING YOUTH 29
CHALLENGES IN CARE 30
CONCLUSION 30
REFERENCES 31
5 - Rationale for the Initiation, Use, and Monitoring of GnRHa in Gender Non-conforming Youth 33
INTRODUCTION 33
RATIONALE 33
INITIATION 34
MONITORING 35
Clinical Monitoring 36
Hormone Monitoring 36
Radiographic Monitoring 37
CONCLUSION 38
REFERENCES 38
6 - Psychosocial Considerations in Pubertal Suppression Treatment 41
INTRODUCTION 41
POSSIBLE EFFECTS OF GONADOTROPIN-RELEASING HORMONE ANALOGUES ON GENDER IDENTITY AND/OR SEXUALITY DEVELOPMENT 41
UNKNOWN NEUROCOGNITIVE SEQUELAE OF PUBERTAL SUPPRESSION TREATMENT 43
PSYCHOSOCIAL IMPLICATIONS OF KNOWN MEDICAL SIDE EFFECTS OF GONADOTROPIN-RELEASING HORMONE ANALOGUE TREATMENT 44
Fertility Considerations 44
Sexual Function Considerations 44
FAMILY FACTORS 45
CONCLUSION 45
REFERENCES 46
7 - Medical Side Effects of GnRH Agonists 49
BONE HEALTH 49
BRAIN 50
FERTILITY 51
BODY MASS INDEX AND BODY COMPOSITION 51
SUMMARY 51
REFERENCES 51
8 - Surgical Side Effects of GnRHa 53
INTRODUCTION 53
GOALS OF SURGERY 53
TIMING OF SURGERY 54
SURGICAL CONSIDERATIONS FOR INDIVIDUALS ON GNRHA 54
Surgery for Transwomen on Gonadotrophin-Releasing Hormone Agonists 54
Vaginoplasty 54
Feminizing procedures 55
Other feminizing procedures 56
Surgery for Transmen on GnRHa 56
Chest surgery 56
Masculinizing genital surgery 57
AREAS OF UNCERTAINTY 59
CONCLUSION 60
REFERENCES 60
9 - Fertility Preservation: Considerations for Gender-Diverse Youth 63
RISK OF INFERTILITY DUE TO HORMONAL THERAPIES 63
FERTILITY PRESERVATION OPTIONS IN BIRTH-ASSIGNED MALES 64
FERTILITY PRESERVATION OPTIONS IN BIRTH-ASSIGNED FEMALES 64
ATTITUDES TOWARD FP AND OTHER PSYCHOLOGICAL CONSIDERATIONS 65
ETHICAL CONSIDERATIONS 66
FINANCIAL CONSIDERATIONS 67
FUTURE DIRECTIONS 68
CONCLUSIONS 68
REFERENCES 69
10 - Duration of Pubertal Suppression and Initiation of Gender-Affirming Hormone Treatment in Youth 73
PUBERTAL SUPPRESSION AND GENDER-AFFIRMING HORMONE THERAPIES 74
RELEVANT TIME POINTS IN CLINICAL GUIDELINES AND PROTOCOLS 75
The “Dutch Protocol” 75
World Professional Association for Transgender Health 75
University of California San Francisco Primary Care Guidelines 76
Endocrine Society Clinical Practice Guidelines 76
UNRESOLVED QUESTIONS 77
CASE EXAMPLES 77
Case 1: the 9-Year-Old Prepubertal Boy or Girl at Pubertal Stage 1 77
Case 2: the 11-Year-Old Transgender Boy at Pubertal Stage 2 78
Case 3: the 11-Year-Old Transgender Girl at Pubertal Stage 2 79
Case 4: the 15-Year-Old Transgender Boy at Pubertal Stage 4 80
Case 5: the 15-Year-Old Transgender Girl at Pubertal Stage 4 81
Case 6: the 17-Year-Old Transgender Boy at Pubertal Stage 5, or the Adult Transgender Man 81
Case 7: the 17-Year-Old Transgender Girl at Pubertal Stage 5, or the Adult Transgender Woman 81
Case 8: The Gender Nonconforming Child in Early Puberty 82
Financial Considerations 82
INITIATION OF GENDER-AFFIRMING HORMONES 83
TESTOSTERONE 83
ESTROGEN 83
CONCLUSIONS 84
REFERENCES 84
11 - Ethical Considerations of GnRHa Treatment and Consent Process 87
INTRODUCTION 87
PUBERTAL SUPPRESSION 87
BENEFITS OF PUBERTAL SUPPRESSION 88
ETHICAL ISSUES 88
Research 88
Balancing Beneficence and Nonmaleficence 89
Respect for Autonomy: Assent and Consent 91
CONCLUSION 92
REFERENCES 92
12 - Emerging Developments in Pubertal Suppression for Gender Incongruent/Gender Dysphoric Youth 95
TRIPTORELIN, A NEW GONADOTROPIN-RELEASING HORMONE AGONIST 95
PROLONGED USE OF HISTRELIN ACETATE IMPLANT IN TRANSGENDER YOUTH 95
GONADOTROPIN-RELEASING HORMONE AGONIST USE IN NONBINARY YOUTH 96
GONADOTROPIN-RELEASING HORMONE AND GONADOTROPIN ANTAGONISTS 96
Gonadotropin Antagonists 96
KISSPEPTIN AND NEUROKININ B ANTAGONISTS 96
OXANDROLONE AS AN ALTERNATIVE GENDER-AFFIRMING MASCULINIZING HORMONE 97
LOW-DOSE ESTROGEN AND TESTOSTERONE 97
ANTIANDROGENS AND ANDROGEN RECEPTOR INHIBITORS 98
ANTIANDROGENS 98
CONCLUSION 98
REFERENCES 98
Index 101
A 101
B 101
C 101
D 101
E 101
F 102
G 102
H 103
I 103
J 103
K 103
L 103
M 103
N 103
O 103
P 103
R 104
S 104
T 104
U 105
V 105
W 105
X 105
Z 105