PURPOSE: To investigate the impact of technical difficulties, choice of catheter, and the presence of blood during embryo transfer on the results of in vitro fertilization and ICSI. METHODS: A cohort of 784 consecutive cycles in 655 in vitro fertilization and ICSI patients were studied. RESULTS: Negotiating the cervix, using the volsellum, presence of blood on the catheter wall or on the cervix did not affect the results. Changing the catheter and blood on the catheter tip reduced the pregnancy (P < 0.05 and P < 0.05) and implantation rates (P < 0.001 and P < 0.01). The Ultrasoft catheter produced higher pregnancy (P < 0.0005) and implantation rates (P < 0.01) compared to the more rigid Frydman catheter. CONCLUSIONS: Negotiation of the cervix, the use of a volsellum, and the presence of blood on the catheter wall or on the cervix do not affect the results. Changing the catheter and blood on the catheter tip significantly diminish the pregnancy and implantation rates. Soft catheters perform better.
PURPOSE: To investigate the impact of technical difficulties, choice of catheter, and the presence of blood during embryo transfer on the results of in vitro fertilization and ICSI. METHODS: A cohort of 784 consecutive cycles in 655 in vitro fertilization and ICSI patients were studied. RESULTS: Negotiating the cervix, using the volsellum, presence of blood on the catheter wall or on the cervix did not affect the results. Changing the catheter and blood on the catheter tip reduced the pregnancy (P < 0.05 and P < 0.05) and implantation rates (P < 0.001 and P < 0.01). The Ultrasoft catheter produced higher pregnancy (P < 0.0005) and implantation rates (P < 0.01) compared to the more rigid Frydman catheter. CONCLUSIONS: Negotiation of the cervix, the use of a volsellum, and the presence of blood on the catheter wall or on the cervix do not affect the results. Changing the catheter and blood on the catheter tip significantly diminish the pregnancy and implantation rates. Soft catheters perform better.
Authors: C Dorn; J Reinsberg; H Schlebusch; G Prietl; H van der Ven; D Krebs Journal: Eur J Obstet Gynecol Reprod Biol Date: 1999-11 Impact factor: 2.435
Authors: Torie C Plowden; Micah J Hill; Shana M Miles; Benjamin Hoyt; Belinda Yauger; James H Segars; John M Csokmay; Rebecca J Chason Journal: Reprod Sci Date: 2016-09-21 Impact factor: 3.060