不同受精方式对获卵数较少患者妊娠结局的影响

目的比较获卵数少的患者采用不同受精方式对其妊娠结局的影响。方法回顾性分析127个周期获卵数少于6个的患者,采用体外受精（IVF）或卵胞浆内单精子显微注射术（ICSI）,比较两组受精率、多精受精率、取消周期率以及妊娠率的差异。结果两组患者年龄、不孕年限、不孕原因差异无统计学意义（P〉0.05）;两组患者获成熟卵率、可移植胚胎率、优质胚胎率、周期取消率、临床妊娠率差异无统计学意义（P〉0.05）I,CSI组较IVF组受精率、冷冻周期率明显高（P〈0.05）;两组按精液情况分层,男方精液正常的患者ICSI组比IVF组受精率明显升高（P〈0.05）,但在多精受精率、可移植胚胎率、优质胚胎率、冷冻周期率、取消周期率和临床妊娠率、单个取卵周期累计妊娠率等差异均无统计学意义;男方临界精液质量组的患者ICSI组可移植胚胎、冷冻周期率、取卵周期累计妊娠率较IVF组显著增加（P〈0.05）,周期取消率明显降低（P〈0.05）,受精率、优质胚胎率和临床妊娠率均高于IVF组,但无统计学意义（P〉0.05）。结论男方临界精液质量组获卵少患者采用ICSI可提高卵子的利用率及累计妊娠率,男方精液正常获卵少患者行ICSI无明显优势。     

单精子卵浆内注射应用于前周期常规体外受精失败和低受精的治疗结果

目的：分析常规体外受精（IVF）完全受精失败和低受精随后周期行单精子卵胞浆内注射（ICSI）的临床结果。方法：2001年10月至2007年5月，30例IVF完全不受精和12例IVF低受精不育夫妇分别在随后周期采取38个周期（A组）和17个周期（B组）ICSI治疗，同期因男性因素行第1周期ICSI治疗的281个周期作为对照（C组），比较三组的正常受精率、优质胚胎率、胚胎种植率和临床妊娠率。结果：三组间正常受精率、优质胚胎率和临床妊娠率差异均无显著性；A组的胚胎种植率为14．3%，明显低于B组和C组（29．5%和26．0%，P均〈0．05）。结论：IVF低受精患者在随后周期改行ICSI可获得理想的临床治疗效果，IVF完全受精失败患者随后周期改行ICSI的胚胎种植率较低，表明其完全受精失败至少部分原因是由于卵子异常而导致胚胎发育潜能的下降。     

部分卵子单精子注射在体外受精中的必要性探讨

目的探讨在体外受精-胚胎移植（IVF-ET）中特殊情况下对部分卵子实行卵胞浆内单精子显微注射（Half ICSI）的必要性。方法回顾性分析2004年1月～2007年12月间在我院行Half ICSI的31个周期并将其作为研究组，将31个周期所有的卵子417个分为两个亚组，A组：行常规IVF-ET组214个卵子；B组：ICSI组203个卵子。分析两组受精率、卵裂率、优质胚胎获得率（优质胚胎彩卵子数），并且将同期在我院接受常规体外受精-胚胎移植（IVF-ET）连续427个周期及卵胞浆内单精子显微注射（ICSI）连续102个周期作为对照组。结果A组受精率、卵裂率及优质胚胎获得率显著低于B组，其中有7例完全不受精，11例受精率≤30％；研究组A组受精率、卵裂率、优质胚胎获得率明显低于对照组，但研究组（A组＋B组）妊娠率与对照组相比无显著性差异。结论在体外受精胚胎移植中如精子数量及质量在IVF—ET及ICSI指征的临界值之间或取卵日精液与术前检查不符等特殊情况，选择部分卵子行单精子显微注射可以有效地预防因完全不受精及受精率过低导致的无胚胎移植及妊娠率下降。     

非男性因素不孕超促排卵低获卵周期IVF和ICSI效果比较

目的探讨非男性因素不孕超促排卵低获卵周期体外受精.胚胎移植(IVF)和卵子胞浆内单精子注射(ICSI)两种授精方式对受精效果、胚胎发育潜能及助孕结局的影响,为明确ICSI指征提供临床依据。方法回顾分析南方医院生殖医学中心的220个非男性因素不孕患者超促排卵低获卵周期,将其分为IVF组(151例)和ICSI组(69例),对两组患者的一般情况、促排卵过程中卵巢反应性指标、受精、胚胎质量和妊娠情况进行分析。结果两组受精率、正常受精率、完全受精失败率、卵裂率、优质胚胎率、胚胎着床率、临床妊娠率及完全受精失败率无显著性差异,但IVF组受精率、正常受精率、卵裂率、优质胚胎率及临床妊娠率呈增高趋势;完全受精失败率呈降低趋势。结论 ICSI即无法改善非男性因素不孕超促排卵低获卵患者的受精情况,对提高其胚胎发育潜能及改善最终妊娠结局也无益处,不建议对该部分患者常规行ICSI治疗。     

A retrospective analysis of 139 half-ICSI cycles in secondary infertile females.

目的 探讨继发不孕患者行部分卵子单精子卵泡浆内显微注射(half intracytoplasmic sperm injection,half-ICSI)的适应证.方法 回顾性分析继发不孕患者行部分卵子单精子卵泡浆内显微注射共139个周期,按体外授精(IVF)受精率≤50% 和＞50%分组,比较两组患者年龄、不孕年限、受精率、临床妊娠率等情况;分析IVF受精失败12周期的相关情况.结果 IVF受精率≤50%组的女方年龄较大,男方因素比例高,ICSI受精率低,获卵数及冷冻胚胎均少于受精率>50%组(P<0.05).IVF受精失败的12周期与IVF受精率>50%组比较也得出相似结果.结论 对于继发不孕患者,女方年龄大,男方精液为临界值,若为原发不育者,行half-ICSI可能帮助其减少受精失败的概率.     

精子冷冻损伤与妊娠结局的相关性分析

目的研究精子冷冻损伤对体外授精-胚胎移植(IVF-ET)周期胚胎质量及妊娠结局的影响。方法回顾性分析供精周期与常规辅助生殖技术(ART)治疗周期的受精率、卵裂率、可移植胚胎率、优质胚胎率以及妊娠率的差异。结果供精IVF在受精率、卵裂率、优质胚胎率和妊娠率均低于常规IVF周期,且差异有统计学意义(P<0.05);供精卵胞浆内单精子显微注射术(ICSI)周期较ICSI周期在卵裂率、可移植胚胎率、优质胚胎率和冷冻周期率差异有统计学意义(P<0.05);而两者受精率及妊娠率差异无统计学意义(P>0.05)。结论冷冻后精子损伤可造成精子与卵子的结合能力及体外授精能力的下降;精子冷冻损伤只影响胚胎质量但不影响最终妊娠率。     

存在受精失败风险患者中应用分半IVF/ICSI的临床结局分析

目的 探讨分半ⅣF/ICSI（half-ICSI）在有受精失败风险患者中的临床应用价值.方法 2009年8月～2010年8月于我科行half-ICSI共36周期,同一周期取得的卵子随机分半,分别进行常规体外受精（IVF）与卵胞浆内单精子显微注射（ICSI）,比较不同受精方式的受精率、卵裂率及优质胚胎率,并与同期接受常规IVF的连续312个周期作为对照.结果 Half-ICSI周期中ICSI受精率（81.38%）明显高于IVF受精率（41.28%）,IVF完全受精失败率（19.44%）及受精低下率（27.78%）明显高于ICSI完全受精失败率（0）及受精低下率（5.56%）,差异有统计学意义（P＜0.05）;IVF和ICSI的卵裂率及优质胚胎率比较,差异无显著性（P＞0.05）;Half-ICSI周期的胚胎种植率及临床妊娠率同常规IVF周期比较,差异无显著性（P＞0.05）.结论 存在受精失败风险患者应用half-ICSI,可以在一定程度上增加其受精率,减少取消移植的风险,增加妊娠机会.     

继发性不孕患者行部分卵子单精子卵泡浆内显微注射139周期分析

目的探讨继发不孕患者行部分卵子单精子卵泡浆内显微注射(half intracytoplasmic sperm injection,half-ICSI)的适应证。方法回顾性分析继发不孕患者行部分卵子单精子卵泡浆内显微注射共139个周期,按体外授精(IVF)受精率≤50%和>50%分组,比较两组患者年龄、不孕年限、受精率、临床妊娠率等情况;分析IVF受精失败12周期的相关情况。结果 IVF受精率≤50%组的女方年龄较大,男方因素比例高,ICSI受精率低,获卵数及冷冻胚胎均少于受精率>50%组(P<0.05)。IVF受精失败的12周期与IVF受精率>50%组比较也得出相似结果。结论对于继发不孕患者,女方年龄大,男方精液为临界值,若为原发不育者,行half-ICSI可能帮助其减少受精失败的概率。     

畸精症对体外授精-胚胎移植妊娠结局的影响

目的：研究分析畸精症与精子形态正常的精液进行体外授精-胚胎移植（IVF-ET）的结局.方法：对在本中心接受941个周期IVF-ET的男性精液为研究对象,将精液分析结果分为：精液畸精症及正常形态精液两个组,比较两组的受精率、卵裂率、优质胚胎率、临床妊娠率和流产率.同时排除女性不孕的原因.结果：精液畸精症及正常形态精液两组间受精率的差异有显著的统计学意义（P＜0.01）;而卵裂率、优质胚胎率、临床妊娠率和流产率差异均无统计学意义.结论：认为在进行IVF-ET中畸形精子症可以导致受精率下降,但是对妊娠结局的影响并不明显.     

非男性因素不孕超促排卵低获卵周期IVF和ICSI效果比较

摘要：目的探讨非男性因素不孕超促排卵低获卵周期体外受精-胚胎移植（IVF）和卵子胞浆内单精子注射（ICSI）两种授精方式
对受精效果、胚胎发育潜能及助孕结局的影响,为明确ICSI指征提供临床依据。方法回顾分析南方医院生殖医学中心的220
个非男性因素不孕患者超促排卵低获卵周期,将其分为IVF组（151例）和ICSI组（69例）,对两组患者的一般情况、促排卵过程中
卵巢反应性指标、受精、胚胎质量和妊娠情况进行分析。结果两组受精率、正常受精率、完全受精失败率、卵裂率、优质胚胎率、
胚胎着床率、临床妊娠率及完全受精失败率无显著性差异,但IVF组受精率、正常受精率、卵裂率、优质胚胎率及临床妊娠率呈
增高趋势;完全受精失败率呈降低趋势。结论ICSI即无法改善非男性因素不孕超促排卵低获卵患者的受精情况,对提高其胚
胎发育潜能及改善最终妊娠结局也无益处,不建议对该部分患者常规行ICSI治疗。
     

卵子冷冻技术的临床应用

目的 探讨卵母细胞冷冻技术在临床应用.方法 将258例接受体外受精-胚胎移植(IVF-ET)和单精子卵浆内注射(ICSI)治疗,取卵数≥20枚的258个周期,分为部分卵母细胞冷冻组(简称冻卵组)84个周期和胚胎冷冻组(简称冻胚组)174个周期,比较两组新鲜周期受精率和临床妊娠率.总结了23个卵母细胞冷冻复苏周期及19个移植周期(其中4个周期为捐赠周期)的复苏率,受精率,卵裂率,胚胎种植率,临床妊娠率,比较冻胚组冻胚复苏移植的临床结局.结果 冻卵组和冻胚组新鲜周期的受精率和临床妊娠率差异无统计学意义(P>0.05);19个卵母细胞冷冻复苏的移植周期与56个冷冻胚胎复苏的移植周期的胚胎种植率和临床妊娠率差异亦无统计学意义(P>0.05);卵母细胞冷冻复苏的移植周期妊娠率为47.4%(9/19),其中冻卵捐赠4个移植周期,2例临床妊娠(1例已分娩).结论 对于接受IVF/ICSI治疗的不孕妇女,由卵巢刺激产生的较多卵母细胞,无论是否选择冷冻部分卵母细胞,对其新鲜周期的受精率和妊娠率没有影响;冻卵移植周期与冻胚移植周期的妊娠率差异也无统计学意义;但是卵母细胞冷冻在生育力保存和分享捐赠方面较冻胚具有显著的优势.     

Is there A Link between Serum Thyroid Stimulating Hormone Level and the Results of in vitro Fertilization and Embryo Transfer？

Objective To analyze the clinical features and outcomes in infertile patients with different levels of thyroid stimulating hormone (TSH) undergoing IVF/ICSI, and to investigate whether inappropriate level of TSH has the adverse effect on the results of the IVF-ET. Methods A total of 389 patients undergoing IVF/ICSI from January 2009 to December 2011 were divided into 3 groups according to the basal TSH level: group A (TSH< 2.0 mIU/L), group B (TSH 2.0-4.5 mIU/L) and group C (TSH>4.5 mIU/L). Oocyte retrieved, fertilization rate, cleavage rate, available embryo rate, pregnancy rate and miscarriage rate were analyzed to explore whether serum TSH level was correlated with the results of IVF/ICSI. Results There were no differences in number of oocyte retrieved, fertilization rate, cleavage rate and available embryo rate among 3 groups (P>0.05). Clinical pregnancy rate in group B (43.0%) was significantly higher than that in group A (30.2%) and group B (23.5%), respectively (P<0.05). There were no significant differences in miscarriage rate among 3 groups. Conclusion TSH level has no effect on fertility rate or miscarriage rate in patients undergoing IVF/ICSI. Inadequacy TSH level would decrease the IVF/ICSI pregnancy rate.     

体外受精-胚胎移植失败的影响因素分析

目的:分析体外受精-胚胎移植失败的影响因素.方法:收集4 886例病人的病史资料,将1次助孕成功的1 420例作为A组,2次及以上助孕成功病人的324个成功周期作为B组,与之对应的365个失败周期作为C组,对可能引起体外受精-胚胎移植失败的相关因素进行分析.结果:A组年龄明显小于B组且不孕年限较B组短(P<0.01).辅助生殖技术治疗相关因素分析显示:A组较B组促排卵时更多采用长方案,B组较C组更多采用微刺激或者拮抗剂等方案,且B组采用卵母细胞单精子注射的比例也高于A组和C组(P<0.01).体外受精结果分析显示:相较于A组,B组移植胚胎数要更多,但取卵总数、受精率、优胚率、可用胚胎数、冷冻胚胎数、种植率均较低(P<0.01);而相较于C组,B组取卵总数、受精率、卵裂率、优胚率、移植胚胎数、可用胚胎数、冷冻胚胎数均较高(P<0.05~P<0.01).结论:年龄大、不孕时间长、获卵数少、可用胚胎数少、胚胎质量差的病人易发生体外受精-胚胎移植治疗失败,对于前一周期治疗失败的病人采用个性化治疗,改变促排方案或者受精方式等可能有助于提高其成功率.     

A preliminary observation on efficacy of growth hormone on poor ovarian responders in IVF/ICSI cycles

Objective To determine efficacy of gonadotropin(Gn) co-treated with growth hormone(GH) on poor ovarian response(POR) patients undergoing in vitro fertilization/intracytoplasmic sperm injection(IVF/ICSI).Methods A total of 58 IVF/ICSI-embryo transfer(ET) cycles in POR patients were retrospectively identified. The POR criteria were defined by Bologna consensus. The cycles were divided into two groups: Gn co-treated with GH group(GH+ group, 25 cycles)and Gn only group(GH- group, 33 cycles). Results of IVF/ICSI for these two groups were compared.Results The number of oocyte retrieved and the normal fertilization rate in the two groups were no difference(P0.05). High-quality embryo rate and implantation rate in the GH+ group were 39.6% and 38.5%, respectively, which were slightly higher than those in the GH-group(35.9% and 25.0%), but no difference was found on these two parameters(P0.05).Conclusion GH, to some extent, can improve the quality of embryo and the implantation rate. Whether GH co-therapy has a definite role in improving the outcome of POR patients still needs further evaluation.     

Role of ICSI in Non-male Factor Cycles as the Number of Oocytes Retrieved Decreases from Four to One

This study aimed to investigate whether intracytoplasmic sperm injection (ICSI) shows an advantage over in vitro fertilization (IVF) in non-male factor cycles as the number of oocytes retrieved decreases from four to one. We undertook a retrospective analysis of 1305 IVF/ICSI cycles of non-male factor in which four or fewer oocytes were retrieved. Comparisons were made between conventional IVF (CI) and ICSI when one, two, three or four oocyte(s) were retrieved. Primary outcomes including normal fertilization rate, proportion of embryos per obtained oocyte, cycle cancellation rate, implantation rate, clinical pregnancy rate (PR), live birth rate (LBR), cumulative PR and cumulative LBR were evaluated. The results showed that the normal fertilization rate (72.5% vs. 50.0%) and the proportion of embryos per obtained oocyte (72.5% vs. 55.0%) were significantly increased in one oocyte retrieved cycles in ICSI group as compared with CI group. However, the proportion of embryos per obtained oocyte was markedly decreased in ICSI group when three (52.3% vs. 61.3%) or four (56.9% vs. 64.0%) oocytes were retrieved. The implantation rates, clinical PRs, LBRs, cumulative PRs and cumulative LBRs in CI group were comparable to those in ICSI group when one, two, three or four oocyte(s) were retrieved. In conclusion, ICSI doesn't show advantages over IVF in low oocyte yield cycles of non-male factors, even when only one oocyte was retrieved.     

体外受精-胚胎移植周期中卵巢反应不良患者受精方式的选择

目的： 通过分析体外受精-胚胎移植周期中,非男性因素的卵巢反应不良患者受精情况及临床结局,探讨这类患者合适的受精方式。方法：回顾性分析体外受精胚胎移植周期中获卵数≤4个周期共103个,按受精方式分为常规IVF组（46周期）与ICSI组（57周期）,分析比较两组间受精率、正常受精率、卵裂率、受精失败发生率及临床妊娠率的差异。结果：IVF组受精率、正常受精率和卵裂率分别为78.7 %、72.6%和95.1 %,ICSI组受精率、正常受精率和卵裂率分别为72.0 %、66.4 %和96.8 %,两组间差异无统计学意义（P＞0.05）; IVF组受精失败发生率为15.56%,高于ICSI组的1.75%(P＜0.05）;IVF组获卵周期妊娠率为27.27%,移植周期妊娠率为33.33%,均高于ICSI组的9.09%与11.11%(P＜0.05）。 结论：对于无明确男性因素的卵巢低反应IVF周期,行ICSI并不能提高其受精率和临床妊娠率。 【关键词】IVF-ET;卵巢反应不良;受精方式     

Rescue ICSI: Choose the Optimal Rescue Window before Oocyte Aging

Objective To evaluate the application value of rescue ICSI in fertilization failure after conventional IVF and choose the best rescue window before oocyte aging according to the results of rescue ICSI performed in different time. Methods The data of 93 IVF cycles were analyzed retrospectively. Rescue ICSI was performed in these cycles after conventional IVF failure. Because of the different rescue time, these cycles were divided into two groups: early rescue group (group A, 77 cycles, rescue ICSI performed 4-8 h after conventional IVF) and late rescue group (group B, 16 cycles, rescue ICSI performed 20-22 h after conventional IVF). Results There were no statistically significant differences in age of female, duration of infertility, number of oocytes retrieved every cycle. The normal fertilization rate, pregnancy rate and implantation rate were decreased in group B compared with those in group A (P<0.05). In group A, the normal fertilization rate of rescue ICSI performed 4-6 h after conventional IVF (group A1) was increased compared with that of rescue ICSI performed 6-8 h (including 6 h) after conventional IVF (group A2)(66.5% vs 55.9%)(P<0.05); while the abnormal fertilization rate in group A1 was decreased compared with group A2 (9.0% vs 14.4%)(P<0.05). Clinical pregnancy rate was slight higher in group A1 than in group A2, though this failed to be significantly different. Conclusion Rescue ICSI is effective if fertilization was failure after conventional IVF, the most important thing is to choose the reasonable rescue window before oocyte aging when ICSI is performed.     

常规IVF授精后20～22 h ICSI再授精的预后

目的:比较补救ICSI和同期实施的ICSI结果并评估补救ICSI的预后.方法:自2000-04/2003-05我中心613个体外受精-胚胎移植(IVF-ET)周期中,有24个精液指标正常的常规IVF治疗周期为完全受精失败或(和)几乎完全受精失败,共有215个未受精的卵于常规IVF授精后20～22 h实施ICSI再授精(补救ICSI),为补救ICSI组;同时期实施的178个周期的ICSI为对照组,将两组的结果相比较.结果:补救ICSI组受精率为48.4%,低于对照组受精率为56.4%,具有统计学意义(P＜0.05);对照组的临床妊娠率和植入率分别为28.1%和9.8%,而补救ICSI组获得3例妊娠,妊娠率为12.5%和植入率为4.3%,虽然无统计学意义(P＞0.05),但对照组的两项指标明显高于补救ICSI组.遗憾的是补救ICSI组3例妊娠中有2例流产,1例胎死腹中行引产.结论:尽管补救ICSI的预后非常差,但为了避免周期取消并为不孕夫妇争取一次受孕的机会,可以考虑实施补救ICSI.关键是实施补救ICSI的时间选择,使卵处于最适宜的受精窗口内,获得有活力的胚胎并提高临床妊娠率.