Abstract
PurposeLimited research has been published on the effect of piezo‐assisted intracytoplasmic sperm injection (P‐ICSI). We evaluated the effect of P‐ICSI on the laboratory, clinical, and neonatal outcomes.MethodsThis retrospective study was based on the data collected between April 2011 and October 2016. Total 1348 mature oocytes from 145 patients were analyzed. Laboratory, clinical, and neonatal outcomes of those given conventional intracytoplasmic sperm injection (C‐ICSI) and those administered P‐ICSI were examined.ResultsP‐ICSI showed significantly more favorable results, with a survival rate of 97.0% (C‐ICSI: 94.1%, P < .010) and a fertilization rate of 83.5% (C‐ICSI: 70.6%, P < .001). There were no differences in the blastocyst development rate, implantation rate, miscarriage rate, live birth rate, gestational age, birth weight, proportion of male neonates, cesarean section rate, and congenital abnormalities between the two patient groups.ConclusionsOur comparison of P‐ICSI with C‐ICSI showed that P‐ICSI significantly improved the survival and fertilization.
Highlights
Intracytoplasmic sperm injection (ICSI) is currently used for 60%80% of the cycles performed in assisted reproductive technology.[1-3]
conventional ICSI (C-ICSI) was used in 94 treatment cycles conducted for 70 patients between April 2011 and April 2015, and piezo-assisted intracytoplasmic sperm injection (P-ICSI) was used in 86 treatment cycles conducted for 75 patients between April 2015 and October 2016
An analysis of C-ICSI cycles performed in Kurashiki Medical Clinic prior to this study revealed that the mean number of injected oocytes was 7.8
Summary
Intracytoplasmic sperm injection (ICSI) is currently used for 60%80% of the cycles performed in assisted reproductive technology.[1-3]. Manual sperm injection has the limitation of poor reproducibility, and there is a need for extensive training to achieve successful results of C-ICSI.[5]. The training materials used for ICSI are problematic because there are no animal gametes that are adequate substitutes for a human gamete. Considering this limitation, viable human gametes are required for training, and this method is ethically questionable. With a very high speed movement of the micropipette created by the piezoelectric elements, P-ICSI assists with the technically difficult processes of C-ICSI, such as sperm immobilization, penetration of ZP, and puncture of oolemma. This study retrospectively evaluated the laboratory, clinical, and neonatal outcomes of P-ICSI
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