Disfunción sexual en cáncer de mama: Efecto colateral / Sexual dysfunction in breast cancer: A side effect

Introducción: La disfunción sexual femenina (DSF) incluye un grupo de alteraciones en el deseo sexual, excitación, lubricación, satisfacción, orgasmo, y dispareunia, de carácter multifactorial, involucrando tanto procesos orgánicos y psicológicos como socioculturales. Los diversos tratamientos médico-quirúrgicos, tienen impacto en la función sexual. La disfunción sexual femenina afecta la calidad de vida, con una prevalencia de hasta 45-90% en las pacientes con diagnóstico de cáncer de mama. Objetivo: Evaluar la función sexual en mujeres con cáncer de mama, con seguimiento oncológico mayor al año, evaluando el impacto de los diferentes tratamientos médico-quirúrgicos en el índice de función sexual femenina. Material y método: Estudio observacional, descriptivo y transversal, donde se incluyeron 102 pacientes entre agosto 2019 y febrero de 2020 con cáncer de mama en el Hospital Municipal de Oncología María Curie. Como instrumento de medida se utilizó el cuestionario *Índice De Función Sexual Femenina* (FSFI), asociado a una encuesta para la obtención de datos sociodemográficos e información sobre los procedimientos medico-quirúrgicos realizados para el tratamiento del cáncer de mama. Resultados: La media de edad de las pacientes fue 54.86 años (SD 9.19). El 69.6% de ellas habían realizado tratamiento quirúrgico conservador, mientras que el 30.4% estaban mastectomizadas, no evidenciándose diferencias estadísticamente significativas en relación a la disfunción sexual en ambos grupos. Se realizó tratamiento quimioterápico en 69.6% del total de las pacientes y 75.5% hormonoterapia, observándose diferencia en el score FSFI al cotejar el tipo de hormonoterapia recibida. La prevalencia de disfunción sexual en este grupo fue de 82,35%. Los resultados evidenciaron valores bajos en la escala FSFI, siendo la media 19.6, lo que demuestra alteraciones en la función sexual en esta población. Conclusiones: El cáncer de mama posee un impacto multidimensional en la salud sexual de mujeres con cáncer de mama, constituyendo un elemento que influye en la calidad de vida. Los diversos tratamientos médico-quirúrgicos alteran la sexualidad, no pudiendo aún establecerse la relación directa que tienen sobre esta esfera

Introduction: Female sexual dysfunction (FSD) includes a group of alterations in sexual desire, arousal, lubrication, satisfaction, orgasm, and dyspareunia, of multifactorial character, involving organic and psychological as well as sociocultural processes. The various medical-surgical treatments have an impact on sexual function. Female sexual dysfunction affects quality of life, with a prevalence of up to 45-90% in patients diagnosed with breast cancer. Objective: To evaluate sexual function in women with breast cancer, with oncologic followup of more than one year, evaluating the impact of different medical-surgical treatments on the index of female sexual function. Material and method: Observational, descriptive and cross-sectional study, where 102 pa- tients were included between August 2019 and February 2020 with breast cancer at the Maria Curie Municipal Oncology Hospital. As a measurement instrument, the questionnaire *Female Sexual Function Index* (FSFI) was used, associated with a survey to obtain sociodemographic data and information on the medical-surgical procedures performed for the treatment of breast cancer. Results: The mean age of the patients was 54.86 years (SD 9.19). Of these, 69.6% had undergone conservative surgical treatment, while 30.4% were mastectomized, with no statistically significant differences in relation to sexual dysfunction in the two groups. Chemotherapy treatment was performed in 69.6% of the total patients and 75.5% hormone therapy, showing a difference in the FSFI score when comparing the type of hormone therapy received. The prevalence of sexual dysfunction in this group was 82.35%. The re- sults showed low values on the FSFI scale, with a mean of 19.6, which demonstrates alterations in sexual function in this population. Conclusions: Breast cancer has a multidimensional impact on the sexual health of women with breast cancer, constituting an element that influences the quality of life. The various medical-surgical treatments alter sexuality, although the direct relationship they have on this sphere cannot yet be established

Reducing the False-Positive Rate for Isovalerylcarnitine in Expanded Newborn Screening: The Application of a Second-Tier Test

Abstract The isodecyl neopentanoate is an ingredient used in the cosmetic industry to prepare a nipple fissure balm. We report on 12 newborns that showed elevated C5-acylcarnitine levels upon newborn screening following treatment with balm. The first 3 neonates were immediately recalled for confirmatory tests and resulted negative for both isovaleric acidemia and short/branched chain acyl-CoA dehydrogenase deficiency. In the other 9 cases, the immediate recall was avoided by applying a new second-tier test able to confirm the presence of pivaloylcarnitine. The concentration of C5-acylcarnitine was measured in the days following the suspension of balm application. Abnormal concentrations of C5-acylcarnitine did not seem to be associated with free carnitine deficiency, probably due to the short time of exposure. A direct correlation between balm ingestion and the elevation in pivaloylcarnitine has been demonstrated in 10 adult volunteers. The commercial balm containing a pivalic acid derivative is causal of false-positive results during newborn screening, and it could have the potential to cause secondary carnitine deficiency when used chronically.