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Featured researches published by Dhiordan Cardoso da Silva.


The Journal of Sexual Medicine | 2016

WHOQOL-100 Before and After Sex Reassignment Surgery in Brazilian Male-to-Female Transsexual Individuals

Dhiordan Cardoso da Silva; Karine Schwarz; Anna Martha Vaitses Fontanari; Angelo Brandelli Costa; Raffael Massuda; Alexandre Annes Henriques; Jaqueline Salvador; Esalba Silveira; Tiago Elias Rosito; Maria Inês Rodrigues Lobato

INTRODUCTION The 100-item World Health Organization Quality of Life Assessment (WHOQOL-100) evaluates quality of life as a subjective and multidimensional construct. Currently, particularly in Brazil, there are controversies concerning quality of life after sex reassignment surgery (SRS). AIM To assess the impact of surgical interventions on quality of life of 47 Brazilian male-to-female transsexual individuals using the WHOQOL-100. METHODS This was a prospective cohort study using the WHOQOL-100 and sociodemographic questions for individuals diagnosed with gender identity disorder according to criteria of the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition. The protocol was used when a transsexual person entered the ambulatory clinic and at least 12 months after SRS. MAIN OUTCOME MEASURES Initially, improvement or worsening of quality of life was assessed using 6 domains and 24 facets. Subsequently, quality of life was assessed for individuals who underwent new surgical interventions and those who did not undergo these procedures 1 year after SRS. RESULTS The participants showed significant improvement after SRS in domains II (psychological) and IV (social relationships) of the WHOQOL-100. In contrast, domains I (physical health) and III (level of independence) were significantly worse after SRS. Individuals who underwent additional surgery had a decrease in quality of life reflected in domains II and IV. During statistical analysis, all results were controlled for variations in demographic characteristics, without significant results. CONCLUSION The WHOQOL-100 is an important instrument to evaluate the quality of life of male-to-female transsexuals during different stages of treatment. SRS promotes the improvement of psychological aspects and social relationships. However, even 1 year after SRS, male-to-female transsexuals continue to report problems in physical health and difficulty in recovering their independence.


Journal of Biosocial Science | 2017

BIRTH ORDER AND ANDROPHILIC MALE-TO-FEMALE TRANSSEXUALISM IN BRAZIL

Doug P. VanderLaan; Ray Blanchard; Kenneth J. Zucker; Raffael Massuda; Anna Martha Vaitses Fontanari; André Oliveira Borba; Angelo Bradelli Costa; Maiko Abel Schneider; Andressa Mueller; Bianca Machado Borba Soll; Karine Schwarz; Dhiordan Cardoso da Silva; Maria Inês Rodrigues Lobato

Previous research has indicated that biological older brothers increase the odds of androphilia in males. This finding has been termed the fraternal birth order effect. The maternal immune hypothesis suggests that this effect reflects the progressive immunization of some mothers to male-specific antigens involved in fetal male brain masculinization. Exposure to these antigens, as a result of carrying earlier-born sons, is hypothesized to produce maternal immune responses towards later-born sons, thus leading to female-typical neural development of brain regions underlying sexual orientation. Because this hypothesis posits mechanisms that have the potential to be active in any situation where a mother gestates repeated male fetuses, a key prediction is that the fraternal birth order effect should be observable in diverse populations. The present study assessed the association between sexual orientation and birth order in androphilic male-to-female transsexuals in Brazil, a previously unexamined population. Male-to-female transsexuals who reported attraction to males were recruited from a specialty gender identity service in southern Brazil (n=118) and a comparison group of gynephilic non-transsexual men (n=143) was recruited at the same hospital. Logistic regression showed that the transsexual group had significantly more older brothers and other siblings. These effects were independent of one another and consistent with previous studies of birth order and male sexual orientation. The presence of the fraternal birth order effect in the present sample provides further evidence of the ubiquity of this effect and, therefore, lends support to the maternal immune hypothesis as an explanation of androphilic sexual orientation in some male-to-female transsexuals.


Laryngoscope | 2017

Laryngeal surgical treatment in transgender women: A systematic review and meta-analysis

Karine Schwarz; Anna Martha Vaitses Fontanari; Maiko Abel Schneider; Bianca Machado Borba Soll; Dhiordan Cardoso da Silva; Poli Mara Spritzer; Maria Elza Kazumi Yamaguti Dorfman; Gabriel Kuhl; Angelo Brandelli Costa; Carla Aparecida Cielo; Anna Paula Villas Bôas; Maria Inês Rodrigues Lobato

To identify the effects of laryngeal surgical treatment in the voice of transgender women, especially on the fundamental frequency (f0).


Journal of Voice | 2017

Perceptual-Auditory and Acoustical Analysis of the Voices of Transgender Women

Karine Schwarz; Anna Martha Vaitses Fontanari; Angelo Brandelli Costa; Bianca Machado Borba Soll; Dhiordan Cardoso da Silva; Anna Paula de Sá Villas-Bôas; Carla Aparecida Cielo; Gabriele Rodrigues Bastilha; Vanessa Veis Ribeiro; Maria Elza Kazumi Yamaguti Dorfman; Maria Inês Rodrigues Lobato

Voice is an important gender marker in the transition process as a transgender individual accepts a new gender identity. The objectives of this study were to describe and relate aspects of a perceptual-auditory analysis and the fundamental frequency (F0) of male-to-female (MtF) transsexual individuals. A case-control study was carried out with individuals aged 19-52 years who attended the Gender Identity Program of the Hospital de Clínicas of Porto Alegre. Vocal recordings from the MtF transgender and cisgender individuals (vowel /a:/ and six phrases of Consensus Auditory Perceptual Evaluation Voice [CAPE-V]) were edited and randomly coded before storage in a Dropbox folder. The voices (vowel /a:/) were analyzed by consensus on the same day by two judge speech therapists who had more than 10 years of experience in the voice area using the GRBASI perceptual-auditory vocal evaluation scale. Acoustic analysis of the voices was performed using the advanced Multi-Dimensional Voice Program software. The resonance focus and the degrees of masculinity and femininity for each voice recording were determined by listening to the CAPE-V phrases, for the same judges. There were significant differences between the groups regarding a greater frequency of subjects with F0 between 80 and 150 Hz (P = 0.003), and a greater frequency of hypernasal resonant focus (P < 0.001) in the MtF cases and greater frequency of subjects with absence of roughness (P = 0.031) in the control group. The MtF group of individuals showed altered vertical resonant focus, more masculine voices, and lower fundamental frequencies. The control group showed a significant absence of roughness.


Journal of Voice | 2017

Transsexual Voice Questionnaire for Male-to-female Brazilian Transsexual People.

Karine Schwarz; Anna Martha Vaitses Fontanari; Andressa Mueller; Angelo Brandelli Costa; Bianca Machado Borba Soll; Dhiordan Cardoso da Silva; Carla Aparecida Cielo; Gabriel Kuhl; Poli Mara Spritzer; Maiko Abel Schneider; Maria Elza Dorfmann; Maria Inês Rodrigues Lobato

OBJECTIVES The aim of the study was to verify the answers to the transsexual voice questionnaire for male-to-female transsexual (TVQMtF) people given to individuals who participated in the Gender Identity Program (PROTIG) at the Hospital de Clínicas de Porto Alegre, Brazil, in relation to some of their demographic characteristics, visual-perceptual evaluations of the face, laryngeal prominence, and auditoryperceptual judgments of voice. METHODS In this cross-sectional study, 47 transsexual women aged between 18 and 50 responded to the (TVQMtF). The demographic data and perceptual ratings were selected from the PROTIG database. RESULTS Among all participants, 55.32% had completed secondary education, and 72.34% had not undergone a sex reassignment surgery; 4.2% of subjects did not use hormones, 23.40% had undergone speech therapy, the average number of years of experience in the female role was 13.98 years, and the participants had been definitively cross-dressing for 5-34 years. Most of the participants had low scores on the (TVQMtF), and significant differences in the total score were observed in accordance with age (higher scores were observed among those <30 years and ≥40 years old) and visual-perceptual evaluations of the face (higher scores were observed in the individual evaluated with masculine face). There were no significant correlations between the total score obtained by the participants and the other demographic variables. CONCLUSIONS Although most of the participants had low scores on the (TVQMtF), some individuals were still experiencing distress due to being perceived as being of the opposite sex or were dissatisfied with their voices.


Frontiers in Human Neuroscience | 2017

Brain Maturation, Cognition and Voice Pattern in a Gender Dysphoria Case under Pubertal Suppression

Maiko Abel Schneider; Poli Mara Spritzer; Bianca Machado Borba Soll; Anna Martha Vaitses Fontanari; Marina Carneiro; Fernanda Tovar-Moll; Angelo Brandelli Costa; Dhiordan Cardoso da Silva; Karine Schwarz; Mauricio Anés; Silzá Tramontina; Maria Inês Rodrigues Lobato

Introduction: Gender dysphoria (GD) (DMS-5) is a condition marked by increasing psychological suffering that accompanies the incongruence between ones experienced or expressed gender and ones assigned gender. Manifestation of GD can be seen early on during childhood and adolescence. During this period, the development of undesirable sexual characteristics marks an acute suffering of being opposite to the sex of birth. Pubertal suppression with gonadotropin releasing hormone analogs (GnRHa) has been proposed for these individuals as a reversible treatment for postponing the pubertal development and attenuating psychological suffering. Recently, increased interest has been observed on the impact of this treatment on brain maturation, cognition and psychological performance. Objectives: The aim of this clinical report is to review the effects of puberty suppression on the brain white matter (WM) during adolescence. WM Fractional anisotropy, voice and cognitive functions were assessed before and during the treatment. MRI scans were acquired before, and after 22 and 28 months of hormonal suppression. Methods: We performed a longitudinal evaluation of a pubertal transgender girl undergoing hormonal treatment with GnRH analog. Three longitudinal magnetic resonance imaging (MRI) scans were performed for diffusion tensor imaging (DTI), regarding Fractional Anisotropy (FA) for regions of interest analysis. In parallel, voice samples for acoustic analysis as well as executive functioning with the Wechsler Intelligence Scale (WISC-IV) were performed. Results: During the follow-up, white matter fractional anisotropy did not increase, compared to normal male puberty effects on the brain. After 22 months of pubertal suppression, operational memory dropped 9 points and remained stable after 28 months of follow-up. The fundamental frequency of voice varied during the first year; however, it remained in the female range. Conclusion: Brain white matter fractional anisotropy remained unchanged in the GD girl during pubertal suppression with GnRHa for 28 months, which may be related to the reduced serum testosterone levels and/or to the patients baseline low average cognitive performance.Global performance on the Weschler scale was slightly lower during pubertal suppression compared to baseline, predominantly due to a reduction in operational memory. Either a baseline of low average cognition or the hormonal status could play a role in cognitive performance during pubertal suppression. The voice pattern during the follow-up seemed to reflect testosterone levels under suppression by GnRHa treatment.


Neuroscience Letters | 2016

Reduced serum concentrations of brain-derived neurotrophic factor (BDNF) in transsexual Brazilian men

Anna Martha Vaitses Fontanari; Angelo Brandelli Costa; Bianca Wollenhaupt de Aguiar; Cíntia Tusset; Tahiana Andreazza; Maiko Abel Schneider; Eduarda Dias da Rosa; Bianca Machado Borba Soll; Karine Schwarz; Dhiordan Cardoso da Silva; André Oliveira Borba; Andressa Mueller; Raffael Massuda; Maria Inês Rodrigues Lobato

Serum BDNF levels are significantly decreased in transsexual Brazilian women when compared to cis-sexual men. Since transsexual men are also exposed to chronic social stress and have a high prevalence of associated psychopathologies, it is plausible to inquire if BDNF serum levels are altered in transsexual men as well. Therefore, our objective was to evaluate differences in BDNF serum level of transsexual men when compared to cis-sexual men and women. Our sample comprises 27 transsexual men, 31 cis-sexual women and 30 cis-sexual men recruited between 2011 and 2015. We observed that BDNF serum concentration is decreased in transsexual men comparing to cis-sexual men and women. Cross-sex hormone treatment, chronic social stress or long-term gender dysphoria (GD) could explain the variation found in BDNF serum levels.


Journal of Immigrant and Minority Health | 2018

Childhood Maltreatment Linked with a Deterioration of Psychosocial Outcomes in Adult Life for Southern Brazilian Transgender Women

Anna Martha Vaitses Fontanari; Diego L. Rovaris; Angelo Brandelli Costa; Andrew Pasley; Renata B. Cupertino; Bianca Machado Borba Soll; Karine Schwarz; Dhiordan Cardoso da Silva; André Oliveira Borba; Andressa Mueller; Claiton Henrique Dotto Bau; Maria Inês Rodrigues Lobato

A history of childhood maltreatment (HCM) has been associated with detrimental psychiatric outcomes. This is particularly true for transgender, for whom there is initial evidence that HCM may be associated with psychiatric morbidity. Our study aimed to further characterize the relationship between HCM and the development of mental disorder in adult life, based on a sample of Brazilian transgender women. Cross-sectional data were collected from a consecutive sample of 289 transgender women who attended the Hospital Clínicas clinic for gender dysphoria, in Porto Alegre, between 1998 and 2014. Our results demonstrated a greater risk of deteriorating mental health amongst participants who had experienced HCM. Given the disproportionally high rate of HCM in transgender persons, we advocate for greater assistance for transgender persons.


Trends in Psychiatry and Psychotherapy | 2017

Serum concentrations of brain-derived neurotrophic factor in patients diagnosed with gender dysphoria undergoing sex reassignment surgery

Maiko Abel Schneider; Tahiana Andreazza; Anna Martha Vaitses Fontanari; Angelo Brandelli Costa; Dhiordan Cardoso da Silva; Bianca Wollenhaupt de Aguiar; Raffael Massuda; Mariana Pedrini; Clarissa Severino Gama; Karine Schwarz; Márcia Kauer-Sant'Anna; Maria Inês Rodrigues Lobato

Introduction: Transsexualism (ICD-10) is a condition characterized by a strong and persistent dissociation with ones assigned gender. Sex reassignment surgery (SRS) and hormone therapy provide a means of allowing transsexual individuals to feel more congruent with their gender and have played a major role in treatment over the past 70 years. Brain-derived neurotrophic factor (BDNF) appears to play a key role in recovery from acute surgical trauma and environmentally mediated vulnerability to psychopathology. We hypothesize that BDNF may be a biomarker of alleviation of gender incongruence suffering. Objectives: To measure preoperative and postoperative serum BDNF levels in transsexual individuals as a biomarker of alleviation of stress related to gender incongruence after SRS. Methods: Thirty-two male-to-female transsexual people who underwent both surgery and hormonal treatment were selected from our initial sample. BDNF serum levels were assessed before and after SRS with sandwich enzyme linked immunosorbent assay (ELISA). The time elapsed between the pre-SRS and post-SRS blood collections was also measured. Results: No significant difference was found in pre-SRS or post-SRS BDNF levels or with relation to the time elapsed after SRS when BDNF levels were measured. Conclusion: Alleviation of the suffering related to gender incongruence after SRS cannot be assessed by BDNF alone. Surgical solutions may not provide a quick fix for psychological distress associated with transsexualism and SRS may serve as one step toward, rather than as the conclusion of, construction of a persons gender identity.


Archives of Sexual Behavior | 2015

Population-Based HIV Prevalence and Associated Factors in Male-to-Female Transsexuals from Southern Brazil

Angelo Brandelli Costa; Anna Martha Vaitses Fontanari; Michelle Moraes Jacinto; Dhiordan Cardoso da Silva; Emilaine Karine Lorencetti; Heitor Tomé da Rosa Filho; Andressa Mueller; Claudia Garcia de Garcia; Henrique Caetano Nardi; Silvia Helena Koller; Maria Inês Rodrigues Lobato

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Maria Inês Rodrigues Lobato

Universidade Federal do Rio Grande do Sul

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Anna Martha Vaitses Fontanari

Universidade Federal do Rio Grande do Sul

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Karine Schwarz

Universidade Federal do Rio Grande do Sul

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Angelo Brandelli Costa

Pontifícia Universidade Católica do Rio Grande do Sul

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Bianca Machado Borba Soll

Universidade Federal do Rio Grande do Sul

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Maiko Abel Schneider

Universidade Federal do Rio Grande do Sul

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Andressa Mueller

Universidade Federal do Rio Grande do Sul

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Claudia Garcia de Garcia

Universidade Federal do Rio Grande do Sul

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Carla Aparecida Cielo

Pontifícia Universidade Católica do Rio Grande do Sul

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Jaqueline Salvador

Universidade Federal do Rio Grande do Sul

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