Objective To analyze the influencing factors of prognosis of patients with traumatic brain injury (TBI), and explore the influence of hemoglobin (Hb) level combined with blood pressure variability (BPV) on the quality of prognosis of patients with TBI. Methods The data of 186 TBI patients who received systemic treatment in the Affiliated Zhangjiagang Hospital of Soochow University between January 2020 and December 2021 were retrospectively analyzed. According to the Glasgow Outcome Scale (GOS) 3 months after treatment, they were divided into group A (GOS 4-5, 159 cases) and group B (GOS 1-3, 27 cases). The general clinical data, BPV indexes and Hb levels of the two groups were analyzed by single factor analysis and multiple logistic regression analysis, and the predictive value of the logistic regression model was evaluated by receiver operating characteristic (ROC) curve, sensitivity, specificity and area under the curve (AUC). Results There was no statistical significance in gender, age, body mass index, blood urea nitrogen, prothrombin time, fasting blood glucose level, or smoking history (P>0.05); the patients’ Glasgow Coma Scale at admission in group A was higher than that in group B (P<0.05), and the constituent ratio with a history of hypertension of group A was significantly lower than that of group B (P<0.05). The between-group differences in systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), and Hb at admission, and SBP, DBP, and MAP 72 h after treatment were not statistically significant (P>0.05); the SBP-standard deviation (SD), DBP-SD, SPB-coefficient of variation (CV) and DBP-CV of group B 72 h after treatment were significantly higher than those of group A (P<0.05), and the level of Hb was significantly lower than that of group A (P<0.05). Hb [odds ratio (OR)=0.787, 95% confidence interval (CI) (0.633, 0.978), P=0.031], SBP-CV [OR=1.756, 95%CI (1.073, 2.880), P=0.023] and DBP-CV [OR=1.717, 95%CI (1.107, 2.665), P=0.016] were all independent prognostic factors of TBI patients. The ROC showed that the combined index of BPV and Hb was more valuable than that of single prediction, with an AUC of 0.896 [95%CI (0.825, 0.935), P<0.05]. Conclusions Both BPV and Hb are independent factors affecting the prognosis of TBI patients, and their combined application can more effectively predict the prognosis of TBI patients. Therefore, when treating and evaluating the prognosis of TBI patients, closely monitoring the changes in blood pressure and Hb levels can timely and effectively control the development of the disease, and provide scientific reference for subsequent treatment.
Correlation between nonlinear subharmonic scattering of ultrasound contrast agent microbubbles and ambient pressure is expected to be used for local brain tissue pressure monitoring. Although high-frequency ultrasound has achieved high-resolution imaging of intracranial microvessels, the research on high-frequency subharmonic scattering characteristics of microbubbles is insufficient at present, which restricts the research progress of estimating local brain tissue pressure based on high-frequency subharmonic scattering of microbubbles. Therefore, under the excitation of 10 MHz high-frequency ultrasound, the effects of different acoustic pressures and ambient pressures on the high-frequency subharmonic scattering characteristics of three different ultrasound contrast agents including SonoVue, Sonazoid and Huashengxian were investigated in this in vitro study. Results showed that the subharmonic scattering amplitudes of the three microbubbles increased with the increase of ambient pressure at the peak negative acoustic pressures of 696, 766 and 817 kPa, and there was a favorable linear correlation between subharmonic amplitude and ambient pressure. Under the above three acoustic pressures, the highest correlation coefficient of SonoVue was 0.948 (P = 0.03), the highest sensitivity of pressure measurement was 0.248 dB/mm Hg and the minimum root mean square error (RMSE) was 2.64 mm Hg. Sonazoid's highest correlation coefficient was 0.982 (P < 0.01), the highest sensitivity of pressure measurement was 0.052 dB/mm Hg and the minimum RMSE was 1.51 mm Hg. The highest correlation coefficient of Huashengxian was 0.969 (P = 0.02), the highest sensitivity of pressure measurement was 0.098 dB/mm Hg and the minimum RMSE was 2.00 mm Hg. The above in vitro experimental results indicate that by selecting ultrasound contrast agent microbubbles and optimizing acoustic pressure, the correlation between high-frequency subharmonic scattering of microbubbles and ambient pressure can be improved, the sensitivity of pressure measurement can be upgraded, and the measurement error can be reduced to meet the clinical demand for local brain tissue pressure measurement, which provided an important experimental basis for subsequent research in vivo.
ObjectiveTo build core items of database for traumatic brain injury (TBI) in rehabilitation medical database.MethodsRelevant factors in TBI database were summarized through database search in combination of acknowledged relevant items of TBI in rehabilitation medical database. Delphi method was used for experts to determine which items should be included by two rounds of questionnaires.ResultsThe average authority coefficient of experts was 0.94. After two rounds of questionnaires, 73 were included. Its contents include: general conditions, brain damage and disposal, relevant rehabilitation assessment scales, previous rehabilitation treatment, treatment expenses, and contents that require attention during re-evaluation.ConclusionsAfter two rounds of Delphi evaluation, the core items of database for TBI are identified with high recognition and consistency from experts.
Objective To explore the effect of systematic respiratory training on lung function in patients with mild to moderate traumatic brain injury. Methods A total of 60 patients with craniocerebral injury who received conservative treatment from January 2015 to June 2017 were selected. These patients were randomly divided into two groups: breathing training group for systematic breathing training and conventional treatment group for conventional rehabilitation training. Pulmonary infection, length of hospital stay, lung function determination, vital capacity, percentage of maximal ventilation, patient’s oxygen saturation, arterial partial pressure of oxygen, peak airway pressure, airway resistance, and respiratory mechanics were observed. Results The pulmonary infection rate and the length of hospital stay in the respiratory training group were 10.0% and (8.17±0.99) days, respectively, which were significantly lower than those in the conventional treatment group [33.3% and (12.67±0.99) days, respectively]; the differences between the two groups were statistically significant (P<0.05). At the same time, pulmonary function, oxygen saturation, arterial oxygen tension, and respiratory mechanics were all better in the breathing training group than those in the conventional treatment group, the differences between the two groups were statistically significant (P<0.05). Conclusion Breathing training can significantly improve the recovery of lung function in patients with mild to moderate traumatic brain injury, reduce the incidence of complications and effectively improve the prognosis.
In recent years, although the mortality rate caused by traumatic brain injury has declined, the disability rate has remained high, which has a serious impact on patients and their families. Therefore, solving the complications and sequelae caused by traumatic brain injury is the focus and difficulty of current clinical research. Integration of traditional and western medicine rehabilitation is an effective method for the treatment of the central nervous system at home and abroad, and it also fully reflects its therapeutic advantages in the application of traumatic brain injury. Based on this, this paper will mainly introduce the clinical characteristics of patients with traumatic brain injury, and systematically expound the commonly used clinical rehabilitation treatment methods of integration of traditional and western medicine, aiming to provide a certain guidance for the rehabilitation treatment of traumatic brain injury.
Objective To explore the number variation trend of inpatients with traumatic brain injury (TBI) in high altitude and plain areas. Methods The first page information in medical records of TBI patients, who were admitted to military hospitals from 2001 to 2007, was searched and extracted from the Chinese Trauma Database. Two military hospitals in high altitude area and another two in the same hospital level in plain area were selected. Then, the number variation trend of TBI inpatients in those two areas was compared. Results In high altitude area, the proportion of male patients and their median inpatient days were higher, while the age, proportion of Han patients and surgery rate were lower than those in plain area (all Plt;0.001). During 2001-2007, there were 9 141 TBI patients discharged from the four hospitals, and the average annual growth rate was 13.15%. In high altitude area, the average annual growth rate of discharged inpatients was 24.00%, while in plain area, it was just 7.09%. The 4 common categories of TBI were intracranial injury, open wound of the head, neck and trunk, skull fracture, and other injuries. Conclusion Compared with the plain area, there are significant differences in the demographics, hospital stay and surgery of inpatients in high altitude area. The average annual growth rate of TBI inpatients discharged from hospitals in high altitude area is faster than that in plain area, to which should be paid attention by relevant departments.
ObjectiveTo investigate the mechanism of Semaphorin 3A (Sema3A) in fracture healing after nerve injury by observing the expression of Sema3A in the tibia fracture healing after traumatic brain injury (TBI). MethodsA total of 192 Wistar female rats, 8-10 weeks old and weighing 220-250 g, were randomly divided into tibia fracture group (group A, n=48), TBI group (group B, n=48), TBI with tibia fracture group (group C, n=48), and control group (group D, n=48). The tibia fracture model was established at the right side of group A; TBI model was made in group B by the improved Feeney method; the TBI and tibia fracture model was made in group C; no treatment was given in group D. The tissue samples were respectively collected at 3, 5, 7, 14, 21, and 28 days after operation; HE staining, immunohistochemistry staining, and Western blot method were used for the location and quantitative detection of Sema3A in callus tissue. ResultsHE staining showed that no obvious changes were observed at each time point in groups B and D. At 3 and 5 days, there was no obvious callus growth at fracture site with inflammatory cells and fibrous tissue filling in groups A and C. At 7 and 14 days, fibrous tissue grew from periosteum to fracture site in groups A and C; the proliferation of chondrocytes in exterior periosteum gradually formed osteoid callus at fracture site in groups A and C. The chondrocyte had bigger size, looser arrangement, and more osteoid in group C than group A. Group B had disorder periosteum, slight subperiosteal bone hyperplasia, and no obvious change of bone trabecula in group B when compared with group D. At 21 and 28 days, cartilage callus was gradually replaced by new bone trabecula in groups A and C. Group C had loose arrange, disorder structure, and low density of bone trabecula, big callus area and few chondrocyte and osteoid when compared with group A; group B was similar to Group D. Immunohistochemistry staining showed that Sema3A expression in chondrocytes in group C was higher than that in group A, particularly at 7, 14, and 21 day. Sema3A was significantly higher in osteoblasts of new bone trabecula in group A than group C, especially at 14 and 21 days (P<0.05). Western blot results showed that the Sema3A had the same expression trend during fracture healing in groups A and C. However, the expression of Sema3A protein was significantly higher in group C than group A (P<0.05) and in group B than group D (P<0.05) at 7, 14, 21, and 28 days. ConclusionAbnormal expression of Sema3A may play a role in fracture healing after nerve injury by promoting the chondrocytes proliferation and reducing the distribution of sensory nerve fibers and osteoblast differentiation.
ObjectiveTo explore a method of three-dimensional (3D) printing technology for preparation of personalized rat brain tissue cavity scaffolds so as to lay the foundation for the repair of traumatic brain injury (TBI) with tissue engineered customized cavity scaffolds. MethodsFive male Sprague Dawley rats[weighing (300±10) g] were induced to TBI models by electric controlled cortical impactor. Mimics software was used to reconstruct the surface profile of the damaged cavity based on the MRI data, computer aided design to construct the internal structure. Then collagen-chitosan composite was prepared for 3D bioprinter of bionic brain cavity scaffold. ResultsMRI scans showed the changes of brain tissue injury in the injured side, and the position of the cavity was limited to the right side of the rat brain cortex. The 3D model of personalized cavity containing the internal structure was successfully constructed, and cavity scaffolds were prepared by 3D printing technology. The external contour of cavity scaffolds was similar to that of the injured zone in the rat TBI; the inner positive crossing structure arranged in order, and the pore connectivity was good. ConclusionCombined with 3D reconstruction based on MRI data, the appearance of cavity scaffolds by 3D printing technology is similar to that of injured cavity of rat brain tissue, and internal positive cross structure can simulate the topological structure of the extracellular matrix, and printing materials are collagen-chitosan complexes having good biocompatibility, so it will provide a new method for customized cavity scaffolds to repair brain tissue cavity after TBI.
ObjectiveTo investigate the clinical feature, prognosis and prognostic factors of early post-traumatic seizures in children. MethodsRetrospective review was performed on 101 individuals with early post-traumatic seizures (EPTS) who were diagnosed in Department of Neurosurgery in Children's Hospital of Chongqing Medical University from January 2008 to June 2013. The record was collected, which included patient's demographics, clinical and radiological presentation, management, and follow-up results of 12 months. The individuals were divided into late post-traumatic seizures (LPTS) group and control group according to the occurrence of LPTS or not. The SAS 9.2 was used for statistical analysis. ResultsDuring 101 cases in our study, male accounted for 60.4%, female accounted for 39.6%, and the ratio was 1.5 to 1. The percentage of patients who were under 6 years old was 74.3%, and the number of cases decreased with age. The peak time of EPTS was within 24 hours after traumatic brain injury. 55.4% of EPTS was the generalized seizures, 34.7% was the partial seizures, and 9.9% was the partial seizures and evolved to secondarily generalized seizures. The incidence of LPTS observed in our study was 26.7% within 12 months follow-up. The electroencephalogram displayed epileptiform discharges in 3 individuals who were without epileptic seizures. There was statistically significant difference in group LPTS compared to control group on these factors which included GSC score≤8(P=0.0064), complicated necrencephalus and/or encephalatrophy(P < 0.0001), multiple brain injuries(P=0.0210), subdural hemorrhage(P=0.0151) and intracranial operation(P=0.0029). The age, history, epileptic seizure type of EPTS, brain contusion, skull fracture and the early use of antiepileptic drugs (AEDs) had no statistically significant difference between LPTS group and control group(P > 0.05). ConclusionsEPTS is prone to occur in children under 6 years old. Male is obviously more than female, and the ratio is 1.5:1. The peak time of EPTS is within 24 hours after traumatic brain injury and most of EPTS are generalized seizures. The incidence of LPTS in children with EPTS exceeds those previously reported. Periodical electroencephalogram examination is essential to decrease the missed diagnosis of LPTS. The GSC score≤8 and complicated necrencephalus and/or encephalatrophy will dramaticlly increase the risk of LPTS. Multiple brain injuries, subdural hemorrhage and intracranial operation are also risk factors for the prognosis of EPTS. Although the use of AEDs is unable to decrease the incidence of LPTS after 12 months follow-up, it is probably beneficial to improving the cognition and brain development. The controversial finding in our study is whether intracranial operation can influence the prognosis of EPTS or not.
Objective To review the current status and advances of the correlation between traumatic brain injury (TBI) and fracture healing. Methods The related domestic and abroad literature about the correlation between TBI and fracture healing was extensively reviewed and analyzed. Results There are a variety of studies on the correlation between TBI and fracture healing, which can be divided into two major aspects: revascularization and osteogenesis; the local and systemic changes of the neuropeptide and hormone after TBI. Conclusion TBI facilitates callus formation, the further research is needed to clarify the exact mechanism.