Introdução: A contraceção na adolescência tem um papel fundamental na sociedade por prevenir gravidezes indesejadas e infeções sexualmente transmissíveis. O uso de métodos contracetivos reversíveis de longa duração (LARCs) tem vindo a ser recomendado pela sua eficácia e perfil de segurança nesta faixa etária. O objetivo deste estudo foi avaliar a utilização de LARCs na população de uma consulta de Ginecologia da Infância e Adolescência e descrever as características sociodemográficas das adolescentes assim como a prática contracetiva prévia.Material e Métodos: Análise retrospetiva que incluiu as adolescentes utilizadoras de LARCs, acompanhadas na consulta de Ginecologia da Infância e Adolescência de um hospital pediátrico terciário português, no período entre junho de 2012 e junho de 2021.Resultados: Foram incluídas 122 adolescentes, cuja mediana de idades foi 16 (11 – 18) anos. Destas, 62,3% (n = 76) eram sexualmente ativas. O método preferencial foi o implante subcutâneo, colocado em 82,3% (n = 101), seguido do sistema intrauterino de Levonorgestrel (SIU-LNG) em 16,4% (n = 20) e o dispositivo intrauterino de cobre em 1,3% (n = 1). As principais indicações para a escolha de LARCs foram desejo contracetivo em 90,2% (n = 110), hemorragia uterina anormal da puberdade em 14,8% (n = 18), dismenorreia em 10,7% (n = 13) e necessidade de amenorreia em 0,8% (n = 1). O tempo mediano de utilização do implante foi 20 (1 – 48) meses e do SIU-LNG 20 (1 – 36) meses. A taxa de continuidade aos 12 meses para ambos foi de 76,2% (n = 93). A taxa de remoção antes do tempo padronizado foi de 9,8% (n = 12) nas adolescentes que colocaram implante, sendo que não foram removidos SIU-LNG ou dispositivo intrauterino de cobre. Não se registaram gravidezes após a colocação de LARCs.Conclusão: O desejo contracetivo foi o primeiro motivo para a escolha de um LARC seguido do controlo da hemorragia uterina anormal e da dismenorreia. Todos estes fatores poderão contribuir para a elevada taxa de satisfação e continuidade destes métodos.

The WHO estimates that in 50% of couples with infertility issues, the male factor isolated is found in 30% of cases and in combination with female factors in 20%. [1][2][3][4][5] In the last decades, several studies have described a substantial decline in sperm counts, namely one systematic review that claimed a decrease of 50-60% (1973-2011). 3 In fact, over 90% of male infertility is due to poor sperm quality, low sperm counts, or these two concomitantly. 2 Various conditions can account for male infertility, namely anatomical defects, genetic abnormalities, systemic diseases, infections, gonadotoxins, and trauma, among others. 5 Among genetic causes, chromosomal abnormalities can deteriorate testicular function, and Y chromosome microdeletions are responsible for isolated spermatogenic defects. 3 Some childhood events (testicular trauma or torsion) or congenital defects like cryptorchidism may also contribute to the fertility issue. 3 Varicocele is one of the main causes, being present in 40% of infertile men. 1,3,6 Nevertheless, the literature reports a significant number of cases in which no cause is identified, ranging from 30 to 40%, and thus classified as idiopathic. 1,5 Oxidative stress affects 37 million infertile men. 3 Exposure to environmental chemicals and toxic consumption

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e17615 Background: Management of endometrial carcinoma (EC) relies on prognostic risk group classification to help to determine the individual risk of recurrence and the need for adjuvant treatment after surgery. A molecular classification with four distinct prognostic EC subtypes based on genomic abnormalities - DNA polymerase epsilon ( POLE) mutated ( POLEmut), mismatch repair deficient (MMRd), p53 abnormal (p53abn) and no specific molecular profile (NSMP) - has emerged, that raises the possibility of a more precise tailoring of adjuvant therapy. This study aimed to describe the clinicopathological and molecular characteristics of an EC Portuguese cohort, assess its potential impact in patient management and evaluate its prognostic value. Methods: Multicentre, retrospective cohort study of 230 patients with EC diagnosed between 2019 and 2022. Sample processing, clinicopathological, treatment and follow-up data was collected. Molecular classification was obtained by p53 and mismatch repair proteins immunohistochemistry, and POLE next-generation sequencing. Results: Overall, 230 patients from two institutions were included. Median age at diagnosis was 68 years. The most frequent histology was endometrioid (n=163; 70.9%) and most were low-grade (n=129, 56.1%).At diagnosis, disease was confined to the uterus in the majority of patients (FIGO stage I/II, n=153, 66.5%). Most had surgery upfront (n=196, 85.2%) and, of those, 120 (52.2%) received adjuvant treatment. 26 (11.3%) had metastatic disease. Median follow-up time was 15.4 months. Regarding molecular subgroups, the majority were classified as NSMP (n=87, 37.8%), followed by p53abn (n=73, 31.7%), MMRd (n=56, 24.3%), and POLEmut (n=14, 6.1%); 11 (4.8%) were multiple-classifier. Integration of these results led to a change in adjuvant treatment in 3 patients. Median disease-specific survival (DSS) was 108 months. Factors that significantly influenced survival included age (p=0.030), histological type (p<0.001), grade (p<0.001) and FIGO stage (p=0.006). Overall, 35 (15.2%) patients developed recurrences. Median recurrence-free survival (RFS) was 46.7 months. Kaplan-Meier survival analysis showed that molecular alterations were significantly associated both with DSS and RFS (p=0.0092 and p=0.0139, respectively). Tumours with p53abn had the worst prognosis, and patients with POLEmut tumours experienced an excellent prognosis. Comparative measures (BIC, C-index, log-likelihood) showed that considering the molecular classification in establishing risk groups for adjuvant treatment had prognostic significance. Conclusions: The molecular classification has prognostic value and should be considered in adjuvant treatment decisions. It allows for a more personalised approach, helps to reduce under and overtreatment, and therefore reduce patient morbidity associated with treatment toxicities, and healthcare related costs.