RESUMEN
For more than three decades, Brazilian Clinical Embryologists have been working without specific regulations and following the standards adopted by other healthcare professionals. This document aims to guide behavior and decision-making, while providing directions to embryologist with the purpose of aiding professionals involved with assisted reproduction procedures and their patients. The Code of Ethics and Conduct is an important breakthrough and the first step toward regulating Clinical Embryology as a profession.
Asunto(s)
Códigos de Ética , Embriología , Técnicas Reproductivas Asistidas , Embriología/ética , Embriología/organización & administración , Embriología/normas , Humanos , Técnicas Reproductivas Asistidas/ética , Técnicas Reproductivas Asistidas/normasRESUMEN
OBJECTIVE: To evaluate the double-stimulation protocol efficacy over conventional ovarian stimulation in recovering a more adequate number of oocytes and increase the number of embryos to be transferred or to be genetically analyzed. METHODS: A retrospective and comparative study with 13 patients who underwent unsuccessful in vitro fertilization (IVF) cycles with a conventional antagonist ovarian stimulation protocol and repeat the attempt with a double stimulation protocol. The following variables were analyzed: number of oocytes collected, mature oocytes collected, fertilization rate, blastocyst rate, biopsied blastocyst rate and euploidy rate. RESULTS: The double stimulation protocol had a significant higher number of oocytes collected (p=0.007) and mature oocytes to be injected (p=0.01). There was no statistically significant difference in fertilization (p=0.78) and blastocyst (p=0.59) rates. CONCLUSION: Double stimulation favors patients who are at risk of incurring several attempts of IVF to achieve pregnancy.