RESUMO
PURPOSE: Varicocele repair is recommended in the presence of a clinical varicocele together with at least one abnormal semen parameter, and male infertility. Unfortunately, up to 50% of men who meet criteria for repair will not see meaningful benefit in outcomes despite successful treatment. We developed an artificial intelligence (AI) model to predict which men with varicocele will benefit from treatment. MATERIALS AND METHODS: We identified men with infertility, clinical varicocele, and at least one abnormal semen parameter from two large urology centers in North America (Miami and Toronto) between 2006 and 2020. We collected pre and post-operative clinical and hormonal data following treatment. Clinical upgrading was defined as an increase in sperm concentration that would allow a couple to access previously unavailable reproductive options. The tiers used for upgrading were: 1-5 million/mL (ICSI/IVF), 5-15 million/mL (IUI) and >15 million/mL (natural conception). Thus moving from ICSI/IVF to IUI, or from IUI to natural conception, would be considered an upgrade. AI models were trained and tested using R to predict which patients were likely to upgrade after surgery. The model sorted men into categories that defined how likely they were to upgrade after surgery (likely, equivocal, and unlikely). RESULTS: Data from 240 men were included from both centers. A total of 45.6% of men experienced an upgrade in sperm concentration following surgery, 48.1% did not change, and 6.3% downgraded. The data from Miami were used to create a random forest model for predicting upgrade in sperm concentration. On external validation using Toronto data, the model accurately predicted upgrade in 87% of men deemed likely to improve, and in 49% and 36% of men who were equivocal and unlikely to improve, respectively. Overall, the personalized prediction for patients in the validation cohort was accurate (AUC 0.72). CONCLUSIONS: A machine learning model performed well in predicting clinically meaningful post-varicocelectomy sperm parameters using pre-operative hormonal, clinical, and semen analysis data. To our knowledge, this is the first prediction model to show the utility of hormonal data, as well as the first to use machine learning models to predict clinically meaningful upgrading. This model will be published online as a clinical calculator that can be used in the preoperative counseling of patients.
RESUMO
PURPOSE OF REVIEW: Among the growing elderly population, sexual health remains an important concern for individuals and couples. An understanding of the expected changes with aging and taking care of aging men and women is important for treating sexual dysfunction. Sexual health issues related to aging can be both linked between men and women and independent. The aim of this study is to determine the most important considerations that contribute to sexual satisfaction in men and women in this population. RECENT FINDINGS: Many factors contribute to the overall sexual health of men and women. Hypogonadism and erectile dysfunction both warrant thorough evaluation and consideration of treatment to improve sexual satisfaction. Underlying cardiovascular issues may be present in men presenting with these concerns. In addition to hormone replacement and traditional therapy for erectile dysfunction, therapeutic stem cell injection has shown some promise. Menopause, vaginal dryness, and dyspareunia play important roles in sexual satisfaction in women. Vaginal moisturizers, topical estrogen, and MonaLisa Touch laser therapy all may aid in improving these symptoms and ultimately sex lives. Studies have also demonstrated some benefit in populations with arousal disorders, which can be present in the elderly. SUMMARY: Male patients often describe issues related to erectile dysfunction and hypogonadism, and issues with sexual drive. The pathophysiology is linked between these conditions and treatment of one component can provide symptom relief on a larger scale. A combination of testosterone therapy, lifestyle modifications, and therapy for erectile dysfunction relates to sexual satisfaction in men. In women, an understanding of the physiological process of menopause and offering therapy when indicated can improve the quality of sexual health and provide satisfaction to both patient and partner. While aging can diminish drive and desire, proper counseling and treatment may significantly benefit some patients. A multimodal approach involving the physician, patient, and partner will optimize care and may improve the quality of life in the elderly. This review outlines some normal changes due to aging and identifies some current treatment options for a population in which sexual health can be often ignored or dismissed. By understanding the available tools, a more comprehensive approach can be taken to achieve satisfaction in couples and individuals alike.