Use of Roeder knot with vicryl-reel ligature for laparoscopic appendicectomy: have we forgotten how to tie knots?

Electrosurgery--have we forgotten it?

The recent appearance of lasers has made electrosurgical methods almost obsolete. They seem to be routinely avoided by both dermatologists and their patients. In this paper, the benefits of electrosurgery are emphasized, pointing out that these are easy to master, efficient and low-cost procedures. An overview of the five types of cutaneous electrosurgery (electrodesiccation, electrofulguration...

Laparoscopic Appendicectomy

Use of Johan forceps as endoloop pushers for laparoscopic appendicectomy

Figure 2 Clinical photograph demonstrating the long distal drain still protruding after closure of the arthrotomy (Fig 1). Close the arthrotomy from proximal to distal, leaving the distal end protruding (Fig 2). As you reach the end of the wound where the drain exits the arthrotomy, withdraw the drain to length. As the drain withdraws easily, you can be sure that it has not been sutured into th...

The entropic cost to tie a knot

We estimate by Monte Carlo simulations the configurational entropy of N -steps polygons in the cubic lattice with fixed knot type. By collecting a rich statistics of configurations with very large values of N we are able to analyse the asymptotic behaviour of the partition function of the problem for different knot types. Our results confirm that, in the large N limit, each prime knot is locali...

How to Use Glutaraldehyde

 الهای متمادی است که سرویس های بهداشتی گلوتار آلدئید را بعنوان یک ماده استریل کننده برای وسایلی که نسبت به گرما حساس هستند مورد استفاده قرار می دهند. همزمان با افزایش تقاضا برای استفاده از اندوسکوپی، استفاده از گلوتار آلدئید و تماس با آن نیز افزایش یافته است. باید خاطر نشان ساخت گلوتار آلدئید می تواند سبب ایجاد حساسیت های پوستی، چشمی و تنفسی گردد که نهایتاً امکان دارد این حساسیت به آسم و رنیت آل...