Comparison of failure between post- shunted ETV and primary ETV in hydrocephalus: a review article

Hydrocephalus is an abnormal increase in the volume of cerebrospinal fluid (CSF), and sometimes increased intracerebral pressure also leads to hydrocephalus. Endoscopic Third Ventriculostomy (ETV) treatment is a new method for hydrocephaly treatment. In this method, in addition to the fact that the patient does not need an implant, the risk of infection is low and in the long term the result is excellent treatment. ETV has been increasingly used in recent years to treat hydrocephaly. Lack of a standardized criteria/algorithm for choosing ETV for hydrocephalic patients, we conducted this review study to investigate the likelihood of ETV failures after shunt failure compared to ETV without previous shunting as hydrocephaly treatment. The results of recent studies show that ETV's success is increasing and shunting for different reasons such as site infection, should be replaced by other methods, such as ETV. Some patients, especially in poor grades, can show a delayed recovery. However, in some patients due to inappropriate physiological conditions, after ETV treatment, there is a poor result and hence the need for shunting. Failure to improve after ETV can be due to obstruction of the stoma, complicated hydrocephalus, or vascular disorders. The ETV approach seems to be more successful in hydrocephaly patients, but the use of the ETV method has limitations. Most researchers have identified certain conditions for the success of ETV such as: no history of brain infections, no history of ventricular hemorrhage, patient age, history of shunting, history of mental illness, gender, ventricular anatomy, history and number of actions Shunt replacement surgery and hydrocephalus type.