A simplified technique for embryo biopsy: Use of the same micropipette for zona drilling and blastomere aspiration

Purpose: Using different micropipettes for zona drilling and blastomere aspiration for embryo biopsy is prevalent at centers of preimplantation genetic diagnosis. The purpose of our study was to simplify the technique by using only one micropipette. Methods: In this animal model, ICR mouse embryos at the four-cell stage (n=446) were randomly allocated into two groups: a biopsied group (n=224) for blastomere aspiration and a control group (n=222) without micromanipulation. We used a drilling/biopsy micropipette to drill a hole in the zona by expulsion of acidified Tyrode’s solution and to aspirate the blastomere by gentle suction with the same micropipette and pull it out of the zona. One blastomere was biopsied from each embryo. Results: In all, 222 (99.1%) intact blastomeres were successfully biopsied from 224 embryos. Only two blastomeres were damaged during aspiration. The capacity for blastocyst development (92.4 vs 93.7%) was not different between the two groups, but the percentages of embryos hatching (51.8 vs 18.0%) and hatched (29.9 vs 8.1%) were significantly higher in the biopsied group than in the control group. Conclusions: This simplified technique of embryo biopsy is safe and highly efficient for obtaining blastomeres for preimplantation genetic diagnosis and may also facilitate hatching of the blastocysts.     

单侧开颅额部大脑镰切开救治双额叶挫裂伤的疗效分析

目的评价单侧开颅额部大脑镰切开救治双额叶挫裂伤的疗效优点。方法回顾性分析了2000-01～2004-01行手术救治的双额叶或双额+一侧颞叶挫裂伤76例。其中A组36例,行单侧开颅大脑镰下切开术;B组40例,双额开颅手术。结果A组患者死亡率、致残率、平均手术时间、输血量、住院费用明显低于B组患者,二组有显著性差异(P<0.05)。结论单侧开颅额部大脑镰切开救治双额叶挫裂伤能能显著降低重型颅脑损伤患者的死亡率和致残率,明显减少手术时间、输血量及住院费用,具有较好的临床实用价值。     

以反复眩晕为主诉的单侧多发性前庭神经鞘瘤1例报道

<正>前庭神经鞘瘤也称听神经瘤^[1],为内听道、桥小脑角区最常见的良性肿瘤。它会引起听力下降、耳鸣或眩晕;随着肿瘤的生长并向小脑脑桥角扩展,压迫脑桥、延脑,并出现脑积水、颅内高压,进而危及患者生命^[2]。2021年8月我院收治了1例以眩晕为主诉的多发性前庭神经鞘瘤患者,后转诊至301医院,成功为患者施行了右侧迷路入路肿瘤切除手术,术中证实为右耳迷路多发性前庭神经鞘瘤。现对该病例报道如下:     

子宫畸形伴处女膜闭锁和一侧肾脏缺如1例

患儿女,13岁,主因“腹痛,逐渐加重5天,排尿困难1天”急诊人院.既往史及家族史无异常,月经初潮未至.查体:腹部平软,下腹部压痛,无反跳痛及腹肌紧张;外阴阴毛女性分布,未见阴道开口,相应部位处女膜闭锁并轻度膨出,黏膜颜色正常.肛门指诊:直肠前壁扪及约10 cm×8cm质中包块,压痛明显.超声;右肾体积轻度增大(图1),形态饱满,包膜光滑,皮质回声低匀,锥体较清,肾窦呈复合回声,盏盂无异常分离;左肾区未见明显肾脏回声;子宫前位,形态、大小正常,包膜光滑,肌层回声均匀,官腔线清晰、居中,内膜无增厚;阴道明显扩张,约112 mm×73 mm×78 mm,内充满浮点状弱回声液性暗区(图2).超声提示:阴道积液(考虑处女膜闭锁可能);左肾缺如;右肾代偿性增大.于局麻下行处女膜切开引流术,排出黏稠血液约80 ml.     

Sellar chordoma presenting as pseudo-macroprolactinoma with unilateral third cranial nerve palsy

We described a 61‐year‐old female with a sellar chordoma, which presented as pseudo‐macroprolactinoma with unilateral third cranial nerve palsy. Physical examination revealed that her right upper lid could not be raised by itself, right eyeball movement limited to the abduction direction, right pupil dilated to 4.5 mm with negative reaction to light, and hemianopsia in bitemporal sides. CT scanning showed a hyperdense lesion at sellar region without bone destruction. Magnetic resonance imaging (MRI) revealed the tumor was 2.3 cm×1.8 cm×2.6 cm, with iso‐intensity on T1WI, hyper‐intensity on T2WI and heterogeneous enhancement on contrast imaging. Endocrine examination showed her serum prolactin level increased to 1,031.49 mIU/ml. The tumor was sub‐totally resected via pterional craniotomy under microscope and was histologically proven to be a chordoma. Postoperatively, she recovered uneventfully but ptosis and hemianopsia remained at the 6th month.     

高血压脑出血外科手术时机对临床预后的影响

目的评价高血压脑出血患者行颅内血肿清除手术的时机对临床效果的影响。方法136例高血压脑出血的患者，均行钻颅血肿清除术，按手术实施时间分为3组：A组，7小时内手术者46例；B组，8—24小时内手术者53例；C组，大于24小时手术者37例。比较3组患者术后一个月意识恢复、致残及死亡情况。结果A、B两组患者意识恢复良好者多于C组（P〈0．05）；A组患者致残率低于B、C组（P〈0．05），B组致残率低于C组（P〈0．05）；3组患者死亡事件发生率无显著差异。结论高血压脑出血患者应尽早争取手术时间，早期手术可提高救治成功率，降低术后患者致残率。     

中隔软骨移植在单侧唇裂继发鼻畸形修复中的应用

目的 探索单侧唇裂继发鼻唇畸形综合矫治的理想方法。方法 对移位的组织进行完全游离后复位，然后切除偏斜的中隔软骨，矫正中隔及鼻小柱基底偏斜畸形，同时利用切取的中隔软骨移植行鼻唇畸形的综合矫治。结果 1994－1999年共矫治32例，随诊1－3年，临床效果满意。结论 鼻中隔的切除和移植，有效地矫正了中隔偏斜畸形和鼻部下段畸形。移位解剖结构的完全游离及复位是单侧唇裂继发畸形修复的基础。     

根据口鼻轮廓设计单侧唇裂Ⅱ期修复手术

目的 探讨根据口鼻轮廓线设计单侧唇裂Ⅱ期修复手术的方法及临床效果.方法 通过对鼻唇弯曲轮廓的细微研究,从解剖、力学分析入手,结合唇裂畸形的特点,逐步形成以口鼻弯曲轮廓线为手术切口的术式,参考水平线和正中垂直线及外形,对单侧唇裂患者进行Ⅱ期综合整体修复术.结果 该手术方法应用于临床效果医患双方满意.结论 根据口鼻轮廓线设计单侧唇裂Ⅱ期修复术,能取得良好的畸形修复和外形美观效果.