The IMSI procedure improves poor embryo development in the same infertile couples with poor semen quality: A comparative prospective randomized study
<p>Abstract</p> <p>Background</p> <p>Sperm of poor quality can negatively affect embryo development to the blastocyst stage. The aim of this comparative prospective randomized study was to evaluate the role of an intracytoplasmic morphologically selected sperm injection...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2011-08-01
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| Series: | Reproductive Biology and Endocrinology |
| Online Access: | http://www.rbej.com/content/9/1/123 |
| _version_ | 1829497123639394304 |
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| author | Vrtacnik-Bokal Eda Tomazevic Tomaz Zorn Branko Knez Katja Virant-Klun Irma |
| author_facet | Vrtacnik-Bokal Eda Tomazevic Tomaz Zorn Branko Knez Katja Virant-Klun Irma |
| author_sort | Vrtacnik-Bokal Eda |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>Sperm of poor quality can negatively affect embryo development to the blastocyst stage. The aim of this comparative prospective randomized study was to evaluate the role of an intracytoplasmic morphologically selected sperm injection (IMSI) in the same infertile couples included in the programme of intracytoplasmic sperm injection (ICSI) due to their indications of male infertility which had resulted in all arrested embryos following a prolonged 5-day culture in previous ICSI cycles.</p> <p>Methods</p> <p>Couples exhibiting poor semen quality and with all arrested embryos following a prolonged 5-day culture in previous ICSI cycles were divided into two groups: <it>Group 1: IMSI group </it>(n = 20) with IMSI performed in a current attempt and <it>Group 2: ICSI group </it>(n = 37) with a conventional ICSI procedure performed in a current attempt of <it>in vitro </it>fertilization. Fertilization rate, embryo development, implantation, pregnancy and abortion rates were compared between current IMSI and conventional ICSI procedures, and with previous ICSI attempts.</p> <p>Results</p> <p>The <it>IMSI group </it>was characterized by a higher number of blastocysts per cycle than the <it>ICSI group </it>(0.80 vs. 0.65) after a prolonged 5-day embryo culture. There was a significantly lower number of cycles with all arrested embryos and cycles with no embryo transfer in the <it>IMSI group </it>versus the <it>ICSI group </it>(0% vs. 27.0%, p = 0.048). After the transfer of embryos at the blastocyst or morula stage (on luteal day 5) a tendency toward higher implantation and pregnancy rates per cycle was achieved in the <it>IMSI group </it>compared to the <it>ICSI group </it>(17.1% vs. 6.8%; 25.0% vs. 8.1%, respectively), although not statistically significant. After IMSI, all pregnancies achieved by the blastocyst transfer were normally on-going, whereas after ICSI, two of three pregnancies ended in spontaneous abortion. After IMSI, two pregnancies were also achieved by the morula stage embryos, whereas after the conventional ICSI procedure, embryos at the morula stage did not implant.</p> <p>Conclusions</p> <p>The IMSI procedure improved embryo development and the laboratory and clinical outcomes of sperm microinjection in the same infertile couples with male infertility and poor embryo development over the previous ICSI attempts.</p> |
| first_indexed | 2024-12-16T07:45:00Z |
| format | Article |
| id | doaj.art-391dedbe8aa54a92b8b4f909096ebafb |
| institution | Directory Open Access Journal |
| issn | 1477-7827 |
| language | English |
| last_indexed | 2024-12-16T07:45:00Z |
| publishDate | 2011-08-01 |
| publisher | BMC |
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| series | Reproductive Biology and Endocrinology |
| spelling | doaj.art-391dedbe8aa54a92b8b4f909096ebafb2022-12-21T22:38:59ZengBMCReproductive Biology and Endocrinology1477-78272011-08-019112310.1186/1477-7827-9-123The IMSI procedure improves poor embryo development in the same infertile couples with poor semen quality: A comparative prospective randomized studyVrtacnik-Bokal EdaTomazevic TomazZorn BrankoKnez KatjaVirant-Klun Irma<p>Abstract</p> <p>Background</p> <p>Sperm of poor quality can negatively affect embryo development to the blastocyst stage. The aim of this comparative prospective randomized study was to evaluate the role of an intracytoplasmic morphologically selected sperm injection (IMSI) in the same infertile couples included in the programme of intracytoplasmic sperm injection (ICSI) due to their indications of male infertility which had resulted in all arrested embryos following a prolonged 5-day culture in previous ICSI cycles.</p> <p>Methods</p> <p>Couples exhibiting poor semen quality and with all arrested embryos following a prolonged 5-day culture in previous ICSI cycles were divided into two groups: <it>Group 1: IMSI group </it>(n = 20) with IMSI performed in a current attempt and <it>Group 2: ICSI group </it>(n = 37) with a conventional ICSI procedure performed in a current attempt of <it>in vitro </it>fertilization. Fertilization rate, embryo development, implantation, pregnancy and abortion rates were compared between current IMSI and conventional ICSI procedures, and with previous ICSI attempts.</p> <p>Results</p> <p>The <it>IMSI group </it>was characterized by a higher number of blastocysts per cycle than the <it>ICSI group </it>(0.80 vs. 0.65) after a prolonged 5-day embryo culture. There was a significantly lower number of cycles with all arrested embryos and cycles with no embryo transfer in the <it>IMSI group </it>versus the <it>ICSI group </it>(0% vs. 27.0%, p = 0.048). After the transfer of embryos at the blastocyst or morula stage (on luteal day 5) a tendency toward higher implantation and pregnancy rates per cycle was achieved in the <it>IMSI group </it>compared to the <it>ICSI group </it>(17.1% vs. 6.8%; 25.0% vs. 8.1%, respectively), although not statistically significant. After IMSI, all pregnancies achieved by the blastocyst transfer were normally on-going, whereas after ICSI, two of three pregnancies ended in spontaneous abortion. After IMSI, two pregnancies were also achieved by the morula stage embryos, whereas after the conventional ICSI procedure, embryos at the morula stage did not implant.</p> <p>Conclusions</p> <p>The IMSI procedure improved embryo development and the laboratory and clinical outcomes of sperm microinjection in the same infertile couples with male infertility and poor embryo development over the previous ICSI attempts.</p>http://www.rbej.com/content/9/1/123 |
| spellingShingle | Vrtacnik-Bokal Eda Tomazevic Tomaz Zorn Branko Knez Katja Virant-Klun Irma The IMSI procedure improves poor embryo development in the same infertile couples with poor semen quality: A comparative prospective randomized study Reproductive Biology and Endocrinology |
| title | The IMSI procedure improves poor embryo development in the same infertile couples with poor semen quality: A comparative prospective randomized study |
| title_full | The IMSI procedure improves poor embryo development in the same infertile couples with poor semen quality: A comparative prospective randomized study |
| title_fullStr | The IMSI procedure improves poor embryo development in the same infertile couples with poor semen quality: A comparative prospective randomized study |
| title_full_unstemmed | The IMSI procedure improves poor embryo development in the same infertile couples with poor semen quality: A comparative prospective randomized study |
| title_short | The IMSI procedure improves poor embryo development in the same infertile couples with poor semen quality: A comparative prospective randomized study |
| title_sort | imsi procedure improves poor embryo development in the same infertile couples with poor semen quality a comparative prospective randomized study |
| url | http://www.rbej.com/content/9/1/123 |
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