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摘要: 目的:介绍构建经阴道NOTES辅助腹腔镜肾切除术猪动物模型的经验和体会,并评价其应用价值。方法:本组选择6头健康雌性小型猪,中位重量46(42~48) kg。全麻,取70°侧卧位,双后肢外展。于脐两侧缘分别置入一5 mm和10 mm trocar。自阴道后穹窿置入一5 mm trocar。自阴道trocar置入腹腔镜,脐缘两trocar置入操作器械。用电凝钩和吸引器锐性和钝性相结合游离肾脏,逐步显露肾蒂,用Hem-o-lock和钛夹阻断肾动静脉及输尿管,完整切除肾脏,装入自制标本袋,扩大阴道后穹窿切口取出。结果:6例经阴道NOTES辅助腹腔镜猪肾切除术均成功完成,未中转标准腹腔镜或开放手术,亦未另增操作通道。其中左侧3例,右侧3例。中位手术时间100(70~150) min。其中建立通道中位时间10(9~22) min,肾脏切除中位时间15(7~30) min,标本取出中位时间65(40~80) min;术中中位失血量30(20~40) ml。术中无大血管及腹腔脏器损伤等严重并发症发生。结论:建立经阴道NOTES辅助腹腔镜肾切除术的动物模型可行。该模型较真实地模仿人体NOTES的操作过程,是现阶段进行学员培训和特殊器械研发较适宜的方式。Abstract: Objective: To introduce our experience in transvaginal NOTES-assisted laparoscopic nephrectomy in a porcine model and access its value.Method: Six female pigs underwent transvaginal NOTES-assisted laparoscopic nephrectomy(3 right, 3 left). A 5 and 10 mm trocar were placed at the right and left margin of umbilicus. The vaginal mucosa in the posterior vaginal fornix was opened by a chiastic 0.5 cm incision, and a 5 mm trocar was inserted into the abdominal cavity under the direct vision from a 5 mm flexible-tip 0° laparoscope inserted through the 5 mm trocar at the margin of umbilicus. Dissection was performed using operating apparatus placed in the abdominal trocars, under direct vision achieved by the 5 mm flexible-tip 0° laparoscope placed through the vaginal trocar. The renal artery, vein, and ureter were blocked by Hem-o-lock and titanium clips. The specimen was placed inside a homemade bag and removed via the incision of posterior vaginal fornix under direct vision with an optic in the abdominal trocar. The vaginal wound was closed using a running 2-0 absorbable suture.Result: A total of 6 transvaginal NOTES-assisted laparoscopic nephrectomies were successfully performed in this series. The median operative time was 100(range 70 to 150)min. The median estimated blood loss was 30(range 20 to 40) ml. On necropsy, no intraabdominal injuries were noted.Conclusion: Transvaginal NOTES-assisted laparoscopic nephrectomy in a porcine model appears to be feasible, which is suitable to NOTES training for beginners and the development of special instruments.
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Key words:
- transvagina /
- natural orifice transluminal endoscopic surgery /
- nephrectomy /
- animal
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