BACKGROUND The common treatment for hydrocephalus is insertion of a ventriculoperitoneal shunt.Shunt tube displacement is one of the common complications.Most shunt tube displacements occur in children and has a repor...BACKGROUND The common treatment for hydrocephalus is insertion of a ventriculoperitoneal shunt.Shunt tube displacement is one of the common complications.Most shunt tube displacements occur in children and has a reportedly lower incidence in adults.CASE SUMMARY This study reports an adult patient(male,56 years)who suffered from intracranial aneurysm and subarachnoid hemorrhage and underwent aneurysm clipping following hospitalization.One month post onset of the disease,the patient underwent ventriculoperitoneal shunt due to hydrocephalus.The peritoneal end of the shunt tube was displaced in the peritoneal cavity 9 years after the aneurysm clipping.The peritoneal end of the shunt tube was removed and ventriculoperitoneal shunt was re-performed after anti-inflammatory treatment.CONCLUSION Shunt tube displacement has a low incidence in adults.In order to avoid shunt tube displacement,there is a need to summarize its causative factors and practice personalized medicine.展开更多
In this paper,the phenomenon on collapsible tube displacement oscillation,a new behavior of the collapsible tube puisatile flow has been studied.The experiments show that the collapsible tube,in which the flow is peri...In this paper,the phenomenon on collapsible tube displacement oscillation,a new behavior of the collapsible tube puisatile flow has been studied.The experiments show that the collapsible tube,in which the flow is periodic puisatile in the upstream,will oscillate as a simple supported beam when it is collapsed to certain extent,and that if the tube is collapsed continue,this oscillation will tend to weak and completely disappear lastly.An analytical model corresponding to the collapsible tube displacement oscillation and its governed equations are set up from the experiment background.By analysing the model and solving the equations, the collapsible tube displacement oscillation pattern and the oscillation occurring or disappearing criterion are obtained.The results predicted by this study are in agreement with those observed from experiment phenomena.展开更多
基金National Natural Science Foundation of China,No.81773161 and No.81572472.
文摘BACKGROUND The common treatment for hydrocephalus is insertion of a ventriculoperitoneal shunt.Shunt tube displacement is one of the common complications.Most shunt tube displacements occur in children and has a reportedly lower incidence in adults.CASE SUMMARY This study reports an adult patient(male,56 years)who suffered from intracranial aneurysm and subarachnoid hemorrhage and underwent aneurysm clipping following hospitalization.One month post onset of the disease,the patient underwent ventriculoperitoneal shunt due to hydrocephalus.The peritoneal end of the shunt tube was displaced in the peritoneal cavity 9 years after the aneurysm clipping.The peritoneal end of the shunt tube was removed and ventriculoperitoneal shunt was re-performed after anti-inflammatory treatment.CONCLUSION Shunt tube displacement has a low incidence in adults.In order to avoid shunt tube displacement,there is a need to summarize its causative factors and practice personalized medicine.
文摘In this paper,the phenomenon on collapsible tube displacement oscillation,a new behavior of the collapsible tube puisatile flow has been studied.The experiments show that the collapsible tube,in which the flow is periodic puisatile in the upstream,will oscillate as a simple supported beam when it is collapsed to certain extent,and that if the tube is collapsed continue,this oscillation will tend to weak and completely disappear lastly.An analytical model corresponding to the collapsible tube displacement oscillation and its governed equations are set up from the experiment background.By analysing the model and solving the equations, the collapsible tube displacement oscillation pattern and the oscillation occurring or disappearing criterion are obtained.The results predicted by this study are in agreement with those observed from experiment phenomena.
