New Knife Needle

Endoscopic needle-knife treatment of refractory ileo-ascending anastomotic stricture.

A 45-year-old man with Crohn’s disease diagnosed in 1988 who had undergone an ileocecal resection with an end-to-side anastomosis in 1995 presented with pain in the right lower abdomen. A colonoscopy was performed using an Olympus colonoscope (Tokyo, Japan), during which a noninflamed fibrotic stricture of the anastomosis that could not be passed by the endoscope was found (●" Fig.1). Because t...

Needle, knife, or device – which choice in an airway crisis?

Emergency cricothyroidotomy is a life saving intervention included as the final step in most guidelines addressing the management of the emergency airway [1,2]. The procedure must performed quickly and effectively to prevent death or hypoxic brain injury. Despite this a number of alternative approaches are recommended. Cricothyroidotomy can be performed using a needle or surgical approach, or w...

Needle knife papillotomy: how safe and how effective?

Between January 1986 and July 1988 needle knife papillotomy was attempted in 103 patients after failure of conventional access for endoscopic sphincterotomy (96 cases) or diagnostic cholangiography (seven cases). Access was obtained at the same session in 36 cases and at a subsequent attempt within 2 to 5 days in a further 43, an overall success rate of 77%. The procedure related morbidity and ...

A new Gamma Knife radiosurgery paradigm: tomosurgery.

This study proposes and simulates an inverse treatment planning and a continuous dose delivery approach for the Leksell Gamma Knife (LGK, Elekta, Stockholm, Sweden) which we refer to as "Tomosurgery." Tomosurgery uses an isocenter that moves within the irradiation field to continuously deliver the prescribed radiation dose in a raster-scanning format, slice by slice, within an intracranial lesi...

A new suturing needle.