Objective To analyze the risk factors of nosocomial infection in Department of Neurosurgery and to provide evidence for the prevention and treatment of infection.Methods A total of 931 patients with neurosurgery operation in our hospital from January 2012-January 2016 were collected medical history data immediately after admission,including age,gender,underlying diseases,and primary diseases.Surgical records include preoperative white blood cell count,blood glucose level before operation,duration of operation,and reoperation.Hospitalization records include hospitalization time,without the use of corticosteroids,with or without the use of proton there is no pump inhibitor,and tracheal intubation / incision.Patients were divided into infection group and non infection group according to whether the hospital infection occurred during hospitalization.The difference of two groups of clinical data with statistically significant variables was Logistic multivariate regression analysis.Results There were 112 patients with nosocomial infection,the infection rate was 12.03％,and the infection occurred in the postoperative 3-25 d.The main infection site was postoperative wound,accounting for 35.7％;respiratory tract,accounting for 34.8％.There were 64 strains of pathogenic bacteria,81 strains of Gram-negative bacteria,accounting for 64.1％,21 strains of gram positive bacteria,accounting for 32.8％,2 strains of fungi,accounting for 3.1％.There were significant difference between infection group and non infection group in ≥ 60 years,with basic diseases,reoperation,combined with other injuries,white blood cells,abnormal preoperative hyperglycemia,glucocorticoid use,proton pump inhibitors use,tracheotomy,hospitalization time,operation time (P ＜ 0.05).Further Logisitc regression analysis showed that age,reoperation,hospitalization time,preoperative high blood sugar and tracheotomy were the risk factors of nosocomial infection in Department of neurosurgery.Conclusions For the older,reoperation,longer hospitalization time,preoperative hyperglycemia and tracheotomy patients can take specific measures to improve the immunity of the patients,the rational use of antimicrobial drugs to avoid the occurrence of postoperative infection.

Objective To investigate the efficacy and clinical value of balloon-assisted clipping for the treatment of giant unruptured intracranial aneurysms of internal carotid artery. Methods Patients with giant unruptured intracranial aneurysm of intracranial segment of internal carotid artery treated with balloon-assisted clipping in the Department of Neurosurgery, Xiangya Hospital, Central South University from September 2017 to May 2018 were enrolled retrospectively. The proximal internal carotid artery or the aneurysm neck were temporarily blocked by balloon, and then the aneurysm was clipped in the hybrid operating room. Demographic data, preoperative symptoms, aneurysm characteristics, position of balloon placement, intraoperative angiography, complications, and follow-up results were collected. Results A total of 12 patients with giant (diameter >2 cm) unruptured intracranial aneurysm of intracranial segment of internal carotid artery were enrolled. They were all successfully clipped using balloon-assisted clipping in the hybrid operating room. Among them, 1 was located in the ophthalmic segment, 3 in the supraclinoid segment, 4 in the posterior communicating segment, 2 in the anterior choroidal artery segment, and 2 in the bifurcation of the internal carotid artery. The balloons were placed in the proximal end of internal carotid artery in 9 cases and in the neck of aneurysm in 3 cases. Intraoperative angiography showed that 12 aneurysms were completely occluded; 1 had severe stenosis of parent artery, and 1 had mild stenosis. Postoperative complications included cerebral infarction in 1 case, temporary diabetes insipidus in 1 case (returned to normal 1 week after operation), hemiplegia in 1 case, and epilepsy in 1 case. Glasgow Outcome Scale score at discharge showed 5 in 9 cases, 4 in 2 cases, and 3 in 1 case. The patients were followed up for 2.3 to 12 months after operation (median 7.5 months). Reexamination of CT angiography showed no recurrence of aneurysm. Glasgow Outcome Scale score was 5 in 11 cases and 4 in 1 case. Conclusions The use of balloon-assisted clipping technique in the hybrid operating room for the treatment of giant intracranial segmental aneurysms of the internal carotid artery is safe and effective, and has a good long-term outcome.

Objective To investigate the clinical effects and influencing factors of the outcomes of early microsurgical treatment in patients with intracerebral hematoma from ruptured intracranial aneurysm. Methods From 2010 to 2016, patients with intracerebral hematoma from ruptured intracranial aneurysm admitted to the Department of Neurosurgery, Xinyu People's Hospital were enrolled retrospectively. The demographic data, Hunt-Hess grade,Glasgow coma scale(GCS)score,imaging data,and procedure-related complications were collected. Glasgow outcome scale (GOS) score was used to evaluate the outcomes. Four to 5 were defined as good outcome and 1 to 3 were defined as poor outcome. The Hunt-Hess gradesⅡ-Ⅲ were used as the low-grade group and the Ⅳ-Ⅴ grades were used as the high-grade group. The survival rate and quality of life of both groups of patients were compared according to the GOS scores. Results A total of 36 patients were enrolled during the study, including 32 with subarachnoid hemorrhage and intracerebral hematoma and 4 with simple intracerebral hematoma. Hunt-Hess grade was grade Ⅱ in 2 cases, Ⅲ in 18 cases, Ⅳ in 14 cases, and Ⅴ in 2 cases. Distribution of responsible aneurysms:18 patients in middle cerebral artery, 9 in anterior communicating artery, 6 in anterior cerebral artery, 3 in posterior communicating artery, including 4 patients with multiple aneurysms. All patients underwent aneurysm clipping+hematoma removal under the general anesthesia within 36 h after onset,24 of them were treated with decompressive craniectomy. One patient died of severe brain swelling after intraoperative reruptureof the aneurysm,1 died of postoperative massive cerebral infarction, and 1 died of severe pulmonary infection and diabetes after giving up further treatment. Thirty-three survivors were followed up for 1 year, 29 had good outcome(80.5％) and 7 had poor outcome (19.5％). There were significant differences in survival rate and quality of life between the low-grade group and the high-grade group (P=0.001). There were significant differences in the Hunt-Hess grade, baseline GCS score, and proportion of patients receiving decompressive craniectomy between the good outcome group and the poor outcome group.Conclusion The Hunt-Hess grade, baseline GCS score, and decompressive craniectomy were the influencing factors of the outcomes in patients with intracerebral hematoma from ruptured intracranial aneurysm. Removal of hematoma and aneurysm clipping should be performed as early as possible,and decompressive craniectomy should be performed if necessary.

Mitral valve disease is the most common cardiac valve disease. The main treatment of mitral valve disease is surgery or interventional therapy. However, as the anatomy of mitral valve is complicated, the operation is particularly difficult. As a result, it requires sophisticated experiences for surgeons. Three-dimensional (3D) printing technology can transform two-dimensional medical images into 3D solid models. So it can provide clear spatial anatomical information and offer safe and personalized treatment for the patients by simulating surgery process. This article reviews the applications of 3D printing technology in the treatment of mitral valve disease.