Laparoscopic training in urology. An essential principle of laparoscopic interventions in the retroperitoneum]
Der Urologe. Ausg. A(1993)
摘要
The main problem with clinical introduction of laparoscopic techniques in urology is that despite experience with endoscopy no significant endoscopic training is given. Laparoscopic nephrectomy, in particular, is a rather complicated procedure and needs an adequate training concept: The beginner should have the possibility of practising in vitro in a closed "pelvi-trainer" to learn video-optical coordination and orientation; then it is necessary to get used to handling the instruments and practise the different steps of the procedure (i.e. clipping of vessels, sacking of the kidney) either in phantom models or in explanted animal organs. On this basis, we performed laparoscopic nephrectomy in an animal model (n = 18 porcine kidneys). We were able to standardize the technique of creating a pneumoperitoneum, the positioning of the animal, the site and size of the trocars, and preparation and clipping techniques (i.e. Endo-GIA) and entrapment of the kidney (testing different organ bags). A step-by-step approach was used for the introduction to clinical application. For simulation and training of video-assisted preparation techniques in patients and step-wise introduction to laparoscopy (instruments, endocoagulation, trocars), we created a "lap-tent", which was placed over the wound after exposition of Gerota's fascia. Further preparation was performed under laparoscopic conditions (without pneumoperitoneum) with a limited time allowed (1 h). Thereafter, we started with time-limited laparoscopy and laparoscopic lymphadenectomy prior to pelvic surgery (prostatectomy, cystectomy) to introduce the staff to the technique of pneumoperitoneum and placement of the trocars and to the use of the instruments in general. Based on this step-by-step training concept, after a 6-months period we were successful in introducing transperitoneal laparoscopic nephrectomy (TLN) to our clinical routine. So far, we have performed 20 laparoscopic nephrectomies, 1 nephro-ureterectomy, 4 tumour nephrectomies (inducing adrenalectomy), 2 adrenalectomies, and 6 modified retroperitoneal lymphadenectomies. In the lesser pelvis we have experience with 20 laparoscopic varicocelectomies, 23 pelvic lymphadenectomies, and 5 diagnostic laparoscopies for cryptorchidism (February 1993).
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关键词
laparoscopic training,laparoscopic interventions,retroperitoneum,urology
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