When doing brain outdoor drainage, does the drainage tube choose the large or small size?

Intra-brain hemorrhage (IVH) is usually used as an outdoor brain drainage (EVD), but blood clots can clog the drainage tubeLarge drainage tubes can help reduce the risk of catheter blockage, but can also increase bleeding ratesVianney Gilard of Neurosurgery at the University Hospital of Luon, France, compared the efficacy of small and large drainage tubes to EVD in IVH patients, published online october 2016 in World Surgicalrythe retrospective cohort study included IVH patients admitted to two French medical centres between January 2011 and September 201533 cases use the large-size drain pipe with an inner diameter of 2.3mm and an outer diameter of 4mm, and 46 cases accept small-size drain pipes with an inner diameter of 1.5mm and an outer diameter of 3mmPatients were grouped according to the size of the drainage tube selected by the first operation, with the two groups matching 1:2Clinical baseline data, including age, gender, anticoagulant therapy and causes of cerebral hemorrhage, did not differ significantly between the two groupsThe patients in the large-scale drainage tube group had a higher condition and the GCS score was lowThe results of the analysis showed that the large drainage tube reduced the risk of short-term and long-term catheter blockage (p 0.01, p 0.04) and did not increase the incidence of cerebral hemorrhage associated with the catheterThe infection rate of the small-scale drainage tube group was higher, but there was no significant difference with the large-scale drainage tube groupThere was also no significant difference in the improvement of nerve function in the two groups of patients;Table 1EvD efficacy of large-scale draintubes and small-scale drain tubesFinally, the author points out that the large-size drainage tube can reduce the risk of blocking tube swells in IVH patients, does not increase the incidence of cerebral hemorrhage associated with the drainage tube, and can reduce the occurrence of infection caused by drainage(
Zheng Feng, Faculty of Medicine, Cologne University, Germany, compiled,Huahua, aof Huashan Hospital, affiliated with Fudan University,the editor-in-chiefof "Outside of God Information" andProfessor Chen Rongcheng)review