Objective To explore the angioarchitectrue characteristics and appropriate treatment strategies of dural arteriovenous fistula (DAVF) in foramen magnum region.Methods The clinical data of patients with DAVF diagnosed by digital subtraction angiography (DSA) were analyzed retrospectively.Results Thirteen patients intraoperative were found fistula and complete resection,patients discharged from hospital,DSA check showed that the DAVF fistula completely disappeared,all patients symptoms were improved to different extents.Conclusions The clinical features,prognosis and treatment methods of DAVF in forament magnum region depends on its angioarchitecture,especially the lesion site and venous drainage,surgical operation can usually find the fistula and can be completely removed.

[Objective]To investigate the changes and correlation of bone collagen and biomechanical property in osteoporosis rats.[Method]Normal 30 nullimating female 7 month SD rats were divided randomly to two groups,each included 15.The sham group was unovariectomized,and the OVX group was ovariectomized.To execute the rats after 12 weeks,the author get the 5th lumbar vertebra,and then detected the biomechanical property and HYP.The author observed the collagen morphology of the 4th lumbar vertebra using the microscope after the masson triad color dyeing.[Result]Twelve weeks later,HYP in the sham group was(0.197?0.035)mg/g.The bone collagen was regular,compact,and closed succession.HYP in the OVX group was(0.182?0.022)mg/g.The bone collagen was incompact,thin,collapse and poor succession.There was significant change of the HYP in two groups(P

Adult ; Aged ; Hospitals, General ; Humans ; Male ; Medical Staff ; Middle Aged ; Occupational Exposure ; Radiation Protection ; Young Adult

Objective To study the influences of impact of different loads to lamina on spinal cord with a closed spinal cord injury model and to explore the mechanisms of blood vessels in spinal cord injury. Methods 120 normal male SD rats were randomized into 4 groups, with 30 in each. Group A served as the control group which received no impact. In Groups B, C and D,impacts of 10, 15 and 20 N were given to lamina respectively. The blood flow in the spinal cord central gray matter and the dorsal white matter, the blood pressure and the heart rate were observed at different experimental time points. Results No obvious change was observed in the blood pressure and heart rate in every group at different time points. The spinal cord blood flow (SCBF) in Groups C and D varied in a regular pattern. Conclusions The impact load to lamina can affect the spinal cord mainly by altering the spinal cord microcirculation. The influence is the most obvious on the blood flow of microcirculation of the gray matter.

Cholesteatoma ; surgery ; Ear Canal ; Ear Diseases ; surgery ; Humans

Purpose To investigate the clinical effect of ultrasound guided drainage combined with different hardeners for simple breast cysts,and to further provide reference for individual treatment.Materials and Methods Clinical data of 117 cases breast simple cysts were analyzed retrospectively,of which 42 cases were routine ultrasound-guided puncture combined with fluid injection of hypertonic sugar (group A),40 cases were routine ultrasound guided drainage combined with ethanol injection therapy (group B),and 35 cases were routine ultrasound guided therapy alone (control group).The clinical efficacy and adverse reactions were compared among the three groups after treatment.Results The total effective rate of group A was 95.24％,group B was 97.50％,and control group was 82.86％.Total effective rate of group A and B had no significant difference (P＞0.05),which were both higher than control group (P＜0.05).The adverse reactions rate of group B was higher than group A and control group,which had statistical significance (P＜0.05).Conclusion Ultrasound guided injection of hypertonic sugar or ethanol after drainage treatment for simple breast cysts can both obtain satisfactory clinical results,but adverse reactions of the former one are mild,it should be widely applied.

Objective To study the anatomic morphology of posterior column of ilium(PCI)and valne of lumbo-iliac fixation(LIF)in pelvic ring reconstruction following communited Denis Ⅲ sacral fractures.Methods A total of 17 hemi-sectional pelvis and dry ilia were selected to observe the length,width and height(safety and standard)of PCI,when a detailed description was done on the methods determining entry point and operation techniqus for iliac screws anchoring.Nine patients with eommunited sacral fractures involving Denis Ⅲ areas combined with neurologic deficits were decompressed for recovery of neurological function and reconstruction of pelvic ring by using LIF.Postoperative follow-up was done on role of LIF and result of neural rehabilitation.Results PCI was mean 110.57 mm in length,24.24 mm in width,14.54 mm in standard height and 31.46 mm in safe height.Nine patients could turn over in bed immediately following operation and walk one month later.A follow-up for 13-37 months in eight patients showed stable reconstructed pelvic ring,sound function of movement and bone graft fusion,which met the target of keeping stability of fractured extremity and pelvis.Conclusions pCI can provide anatomic support for LIF.When decompression and fixation is needed for sacral fractures combined with anterior pelvic ring disruptions,LIP can provide stable fixation and play an important role in reconstruction,nursing and rehabilitation of pelvic ring.

Objective To study the serum level of resistin and IL‐6 in the sepsis‐induced acute lung injury (ALI) in rats and to probe the relation of IL‐6 and resistin to ALI and its possible mechanism .Methods The forty‐five Wistar rats were randomly as‐signed to three groups ,a control group ,a sham group and a model group .ALI was induced by intravenous injective of LPS (10 mg/kg) and those animals were killed after 6 hours ,12 hours ,24 hours .The lung wet/dry weight ratio ,serum IL‐6 was detected by chemiluminescence and resistin levels were detected by ELISA .Results Compared with the control group and the sham group ,the lung wet/dry weight ratio ,lung pathologic tissue score ,the serum level of resistin and IL‐6 were increased(P<0 .05) .Positive cor‐relation was observed between resistin and IL‐6 in different time .Conclusion Resistin possibly participate the process of sepsis in‐duces ALI .

Objective To prove the prophylactic function of absorbable gelatin sponge and bioprotein glue for prevention of epidural and nerve root scar adhesions after laminectomy. Methods We excised the L6 vertebral plates of 36 adult New Zealand male rabbits,to make vertebral plate excision model and to find nerve root. Then divided them into 3 groups based on different materials:gelatin sponge and bioproten glue (group A),gelatin sponge (group B) and saline solution (group C). The morphological changes of the scars were observed grossly and histologically at 2 and 8 weeks after operation. We also measured the orbit of the nerve root. Results Gelatin sponge combining with bioprotein glue can reduce adhesion obviously(P

Objective To summarize the characteristics of prenatal and postnatal ultrasonic image in hemivertebra fetal malformation. Methods The present study enrolled 12 ultrasound diagnosed hemivertebra fetal malformation and confirmed by either magnetic resonance imaging (MRI) or X-ray in Guangdong Provincial Maternal and Children's Hospital from January 2012 to May 2013. All the ultrasonic image were collected to summarize their characteristics. Results In the twelve cases of prenatal ultrasonic image of hemivertebrae: (1) Vertebral anomaly patterns: the irregular-shape of bones are smaller than normal vertebral bony hyperechoic which inserted into the normal intervertebral in wedge-shape, scoliosis or angular deformity. (2) Diseased parts:in the 12 fetuses, 5 had single vertebral deformity while the other 7 had multiple vertebral deformities. For the location of the lesion, there were 6 dysmorphia appeared in thoracic, 3 appearedin lumbar, 1 appeared in sacrococcygeal, 1 appeared in both cervical and thoracic, and 1 appeared in both thoracic and lumbar. (3) Associated with other malformations: 4 term delivery fetuses confirmed diagnosis of hemivertebra malformation by MRI (the diagnosis of hemivertebra was confirmed by both the fetal MRI and postnatal X-ray in 2 of them within 3 days);8 fetuses had additional anomalies, including heart malformations. Three of them were induced abortion, the X-ray images of the fetal sample showed hemivertebradysmorphia. Five women chosed induced laborin local hospital, and the X-ray images of the fetal were diagnosed as hemivertebradysmorphia. One of them with rib deletion in thoracic was missed diagnosed. Conclusions Three-dimensional ultrasonicimages can clearly show the degree of scoliosis, locate vertebra. It provides important imaging evidence for the treatment of fetal dysmorphiaafter labor.