Sentence:  Routine preoperative shunting of tumor patients is no longer common practice because many patients remain shunt free after tumor removal. Dias and Albright reported a series of 58 patients with posterior fossa tumors and hydrocephalus. Twenty-five patients were <WSD>shunted</WSD> preoperatively, 17 had external ventricular drains (EVDs) and 16 had no preoperative ventricular catheterization. Twenty-four of the 33 patients not initially <WSD>shunted</WSD> remained shunt free at long-term follow-up. 
Meaning of the word marked with <WSD> tags:  To provide with a shunt.