 The catheter was a little adherent and required some freeing up with coagulation and on twisting of the ventricular catheter, I was able to free up the ventricular catheter, and endoscopically inserted a new Bactiseal ventricular catheter. 
The catheter was a little adherent and required some freeing up with coagulation and on twisting of the ventricular catheter , I was able to free up the ventricular catheter , and endoscopically inserted a new Bactiseal ventricular catheter .