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Table 1 Study protocol representing the relevant CRF visits

From: Guided Application of Ventricular Catheters (GAVCA) - multicentre study to compare the ventricular catheter position after use of a catheter guide versus freehand application: study protocol for a randomised trail

Method Visit 0 Visit 1 pre-OP Visit 2 peri-OP Visit 3 discharge Visit 4 end of study CT catheter-control
screening, consent, inclusion x      
randomisation, patient data   x     
surgery    x    
perioperative study visit, complications    x    
study visit, complications, early shunt failure     x x  
postoperative brain scan (until study visit 4)       x