Endoscopic Surgery for Cancer

Endoscopic Middle Ear and Mastoid Surgery for Cholesteatoma

Introduction: To reduce incidence of residual cholesteatoma following ear surgery; and to reduce the need for second look “open” mastoidectomy using endoscopic mastoidotomy. Ten-year retrospective chart review of 249 primary cholesteatoma cases (1994-2004) with a minimum follow-up of two years.  The first objective was to evaluate the effectiveness of otoendoscopy in reducing the incidence of “...

Total Endoscopic Approach in Glomus Tympanicum Surgery

Introduction: Glomus tympanicum (GT) is a benign primary tumor of the middle ear. The evolution of endoscopic ear surgery has allowed for an alternative approach to managing this vascular tumor. The purpose of this study was to evaluate an endoscopic approach in GT surgery, and also to investigate its applicability and feasibility.   Materials and Methods: Prospectively, 13 class I and II patie...

Endoscopic CO2-Laser Surgery for Vocal Cord Cancer

A retrospective study is reported on endoscopic CO(2)-laser microsurgery in 69 patients with histologically verified early vocal cord cancer. A flexible nasopharyngolaryngoscope (STORZ Co) was used for preoperative assessment and occasionally for postoperative follow-up.Six years of experience with this technique have led to endoscopic cordectomy, previously not accepted as a therapeutic method...

Active Forceps for Endoscopic Surgery

Endoscopic surgery has recently been adopted in various surgical operations. Forceps stuck through trocars into the abdominal or chest cavity, dissects and grasps internal organs. Due to their xed shapes, the current forceps limit the skill of surgeons. We have worked on the development of active forceps adoping shape-memory-alloy pipes and coaxicially assembling them. In this paper, we show se...

Tool tracking for endoscopic surgery