Cervical spinal cord injury without fracture-dislocation (CSCIWFD) is referred to as a special type of cervical spinal cord injury characterized by traumatic spinal cord dysfunction and no significant bony structural abnormalities on imagines. Duo to the high risk of missed diagnosis during the initial consultation, CSCIWFD may lead to progressive neurological deterioration or even complete paralysis, severely impacting patients′ prognosis. Currently, there are no established consensuses over the diagnosis and treatment of CSCIWFD, such as the lack of evidence-based standards for indications of non-surgical treatment and risk of secondary neurological injury, as well as debates over the optimal timing for surgical intervention and indications for different surgical approaches. To address these issues, the Spine Trauma Group of the Orthopedic Branch of the Chinese Medical Doctor Association organized experts in the relevant fields to formulate Diagnosis and treatment guideline for acute cervical spinal cord injury without fracture- dislocation in adults ( version 2025) . Based on evidence-based medicine and the principles of scientific rigor and clinical applicability, the guidelines proposed 11 recommendations covering terminology, diagnosis, evaluation treatment, and rehabilitation, etc., aiming to standardize the management of CSCIWFD.

Objective:To evaluate the effect of exogenous short-chain fatty acids (SCFAs) preconditioning on the expression of zonula occludens-1 (ZO-1) in lung tissues of rats undergoing extracorporeal circulation (ECC).Methods:Thirty-six clean-grade healthy adult male Sprague-Dawley rats, weighing 320-420 g, were divided into sham operation group (S group), ECC group (E group) and SCFAs group, with 12 rats in each group. Seven days before the ECC, short-chain fatty acids dissolved in 2 ml of normal saline was given by gavage daily in SCFAs group, while the equal volume of normal saline was given by gavage in S group and E group. On the 8th day, E group and SCFAs group underwent arteriovenous catheterization and ECC for 1 h, while S group only underwent catheterization without ECC. Lung tissues were collected to observe the pathological results and detect the expression of ZO-1 (by Western blot), and the wet/dry lung weight ratio was calculated.Results:Compared with S group, the wet/dry lung weight ratio was significantly increased ( P<0.05), the expression of ZO-1 protein in lung tissue was down-regulated ( P<0.05), and the pathological damage of lung tissues was aggravated in E group and SCFAs group. Compared with E group, the wet/dry lung weight ratio was significantly decreased, the expression of ZO-1 protein in lung tissues was up-regulated ( P<0.05), and the pathological damage of lung tissues was significantly alleviated in SCFAs group. Conclusions:The mechanism by which SCFAs preconditioning attenuates lung injury may be related to up-regulation of ZO-1 expression in lung tissues of rats undergoing ECC.

Objective:To investigate the value of carotid，radial and podalic artery intima thickness（CIT，RIT，PIT）combined with monocyte to high-density lipoprotein ratio（MHR）in predicting the severity of coronary artery stenosis in patients with premature coronary artery disease（PCAD）.Methods:A total of 80 patients with PCAD who received treatment in Henan Provincial People's Hospital from October 2023 to May 2024 were prospectively recruited，and they were divided into high group（≥41 score，40 cases）and low group（＜41 score，40 cases）according to the median dichotomy of Gensini score. Thirty-four gender，age and body mass index（BMI）-matched healthy volunteers were selected as the control group. The CIT，RIT，PIT，media and intima media thickness of carotid，radial artery and podalic artery（CMT，RMT，PMT，CIMT，RIMT，PIMT）were measured using 24 MHz ultra-high frequency ultrasound probe，and the ratio of intima to media thickness（CIT/CMT，RIT/RMT，PIT/PMT）was calculated. The differences of general clinical data，laboratory indexes and ultrasonic parameters among the three groups were compared. Risk factors affecting the severity of coronary stenosis in PCAD patients were explored by binary logistic regression. Subject working characteristic curves were plotted，area under the curve（AUC）was calculated，and the values of each ultrasound parameter and MHR in the independent and combined diagnosis of the severity of coronary artery stenosis in PCAD patients were evaluated.Results:①There were no statistically significant differences in age，gender，BMI，total cholesterol，CMT，RMT and PMT among the three groups（all P＞0.05）. There were no statistically significant differences in the comparison of smoking，hypertension，diabetes mellitus，systolic blood pressure，diastolic blood pressure，low-density lipoprotein cholesterol，total cholesterol，and triglycerides between the two subgroups of the PCAD（all P>0.05）. ②CIT，CIMT，CIT/CMT，RIT，RIMT，RIT/RMT，PIT，PIMT，PIT/PMT were thickened in the high group compared with the low group，and MHR was higher than in the low group（all P<0.05），the differences in the above parameters remained statistically significant when comparing the PCAD group with the control group（all P<0.05）. ③The AUC values for MHR，CIT，RIT and PIT alone to predict the severity of coronary stenosis in patients with PCAD were 0.781，0.767，0.780 and 0.722，respectively. The combined diagnostic efficiency of the four parameters was better than the independent diagnostic efficiency（AUC = 0.885）. Conclusions:CIT，RIT and PIT are thicker in PCAD patients with high Gensini score and the combination of artery intima thickness and MHR has good efficacy in predicting the severity of coronary artery stenosis in PCAD patients.

Objective To investigate the association between extensive perivascular space(EPVS)burden in different locations and ischemic stroke(IS),its subtypes,and transient ischemic attack(TIA)through Mendelian randomization(MR)analysis.Methods The summary data from large-scale Genome-wide Association Studies(GWAS)and various MR methods were employed.We applied multivariable MR to mitigate potential confounding factors and conduct sensitivity analyses to enhance result robustness.Subsequently,meta-analysis was utilized to integrate causal relationships between EPVS burden in different locations and IS from various sources.Additionally,reverse MR was employed to observe the impact of various IS types on EPVS burden.Finally,linkage disequilibrium score regression was conducted to assess genetic correlations between exposures and outcomes.Results EPVS burden in both the white matter(OR=1.12,95％CI:1.01-1.25;P=0.04)and basal ganglia(OR=1.57,95％CI:1.30-1.89;P＜0.01)are significant risk factors for IS.EPVS burden in the basal ganglia is also a risk for IS(small-vessel)(OR=4.56,95％CI:2.57-8.27;P=5.95× 10-7).After IS and TIA there seems to be a potential increase in extensive basal ganglia perivascular space burden.Conclusions Extensive white matter perivascular space burden and extensive basal ganglia perivascular space burden may serve as important indicators to predict IS.

Objective:To evaluate the effect of exogenous short-chain fatty acids (SCFAs) preconditioning on the expression of zonula occludens-1 (ZO-1) in lung tissues of rats undergoing extracorporeal circulation (ECC).Methods:Thirty-six clean-grade healthy adult male Sprague-Dawley rats, weighing 320-420 g, were divided into sham operation group (S group), ECC group (E group) and SCFAs group, with 12 rats in each group. Seven days before the ECC, short-chain fatty acids dissolved in 2 ml of normal saline was given by gavage daily in SCFAs group, while the equal volume of normal saline was given by gavage in S group and E group. On the 8th day, E group and SCFAs group underwent arteriovenous catheterization and ECC for 1 h, while S group only underwent catheterization without ECC. Lung tissues were collected to observe the pathological results and detect the expression of ZO-1 (by Western blot), and the wet/dry lung weight ratio was calculated.Results:Compared with S group, the wet/dry lung weight ratio was significantly increased ( P<0.05), the expression of ZO-1 protein in lung tissue was down-regulated ( P<0.05), and the pathological damage of lung tissues was aggravated in E group and SCFAs group. Compared with E group, the wet/dry lung weight ratio was significantly decreased, the expression of ZO-1 protein in lung tissues was up-regulated ( P<0.05), and the pathological damage of lung tissues was significantly alleviated in SCFAs group. Conclusions:The mechanism by which SCFAs preconditioning attenuates lung injury may be related to up-regulation of ZO-1 expression in lung tissues of rats undergoing ECC.

Objective To investigate the association between extensive perivascular space(EPVS)burden in different locations and ischemic stroke(IS),its subtypes,and transient ischemic attack(TIA)through Mendelian randomization(MR)analysis.Methods The summary data from large-scale Genome-wide Association Studies(GWAS)and various MR methods were employed.We applied multivariable MR to mitigate potential confounding factors and conduct sensitivity analyses to enhance result robustness.Subsequently,meta-analysis was utilized to integrate causal relationships between EPVS burden in different locations and IS from various sources.Additionally,reverse MR was employed to observe the impact of various IS types on EPVS burden.Finally,linkage disequilibrium score regression was conducted to assess genetic correlations between exposures and outcomes.Results EPVS burden in both the white matter(OR=1.12,95％CI:1.01-1.25;P=0.04)and basal ganglia(OR=1.57,95％CI:1.30-1.89;P＜0.01)are significant risk factors for IS.EPVS burden in the basal ganglia is also a risk for IS(small-vessel)(OR=4.56,95％CI:2.57-8.27;P=5.95× 10-7).After IS and TIA there seems to be a potential increase in extensive basal ganglia perivascular space burden.Conclusions Extensive white matter perivascular space burden and extensive basal ganglia perivascular space burden may serve as important indicators to predict IS.

Cervical spinal cord injury without fracture-dislocation (CSCIWFD) is referred to as a special type of cervical spinal cord injury characterized by traumatic spinal cord dysfunction and no significant bony structural abnormalities on imagines. Duo to the high risk of missed diagnosis during the initial consultation, CSCIWFD may lead to progressive neurological deterioration or even complete paralysis, severely impacting patients′ prognosis. Currently, there are no established consensuses over the diagnosis and treatment of CSCIWFD, such as the lack of evidence-based standards for indications of non-surgical treatment and risk of secondary neurological injury, as well as debates over the optimal timing for surgical intervention and indications for different surgical approaches. To address these issues, the Spine Trauma Group of the Orthopedic Branch of the Chinese Medical Doctor Association organized experts in the relevant fields to formulate Diagnosis and treatment guideline for acute cervical spinal cord injury without fracture- dislocation in adults ( version 2025) . Based on evidence-based medicine and the principles of scientific rigor and clinical applicability, the guidelines proposed 11 recommendations covering terminology, diagnosis, evaluation treatment, and rehabilitation, etc., aiming to standardize the management of CSCIWFD.

Objective:To investigate the value of carotid，radial and podalic artery intima thickness（CIT，RIT，PIT）combined with monocyte to high-density lipoprotein ratio（MHR）in predicting the severity of coronary artery stenosis in patients with premature coronary artery disease（PCAD）.Methods:A total of 80 patients with PCAD who received treatment in Henan Provincial People's Hospital from October 2023 to May 2024 were prospectively recruited，and they were divided into high group（≥41 score，40 cases）and low group（＜41 score，40 cases）according to the median dichotomy of Gensini score. Thirty-four gender，age and body mass index（BMI）-matched healthy volunteers were selected as the control group. The CIT，RIT，PIT，media and intima media thickness of carotid，radial artery and podalic artery（CMT，RMT，PMT，CIMT，RIMT，PIMT）were measured using 24 MHz ultra-high frequency ultrasound probe，and the ratio of intima to media thickness（CIT/CMT，RIT/RMT，PIT/PMT）was calculated. The differences of general clinical data，laboratory indexes and ultrasonic parameters among the three groups were compared. Risk factors affecting the severity of coronary stenosis in PCAD patients were explored by binary logistic regression. Subject working characteristic curves were plotted，area under the curve（AUC）was calculated，and the values of each ultrasound parameter and MHR in the independent and combined diagnosis of the severity of coronary artery stenosis in PCAD patients were evaluated.Results:①There were no statistically significant differences in age，gender，BMI，total cholesterol，CMT，RMT and PMT among the three groups（all P＞0.05）. There were no statistically significant differences in the comparison of smoking，hypertension，diabetes mellitus，systolic blood pressure，diastolic blood pressure，low-density lipoprotein cholesterol，total cholesterol，and triglycerides between the two subgroups of the PCAD（all P>0.05）. ②CIT，CIMT，CIT/CMT，RIT，RIMT，RIT/RMT，PIT，PIMT，PIT/PMT were thickened in the high group compared with the low group，and MHR was higher than in the low group（all P<0.05），the differences in the above parameters remained statistically significant when comparing the PCAD group with the control group（all P<0.05）. ③The AUC values for MHR，CIT，RIT and PIT alone to predict the severity of coronary stenosis in patients with PCAD were 0.781，0.767，0.780 and 0.722，respectively. The combined diagnostic efficiency of the four parameters was better than the independent diagnostic efficiency（AUC = 0.885）. Conclusions:CIT，RIT and PIT are thicker in PCAD patients with high Gensini score and the combination of artery intima thickness and MHR has good efficacy in predicting the severity of coronary artery stenosis in PCAD patients.

Objective:To investigate the effect of different timing of arterial -venous extracorporeal membrane oxygenation (VA-ECMO) on the prognosis of patients with acute myocardial infarction complicated with cardiogenic shock (AMICS).Methods:This study was a prospective cohort study. AMICS patients received VA-ECMO support primary percutaneous coronary intervention in Henan Provincial People's Hospital from May 2017 to July 2023 were divided into early VA-ECMO group and late VA-ECMO group. 64 AMICS patients who met the indications for VA-ECMO implantation, but did not revive VA-ECMO were included as control group. Demographic characteristics, coronary interventional (PCI) information and complications after VA-ECMO implantation were collected. The primary end points was 1-year survival, minor end point were in-hospital and perioperative death. Multivariate Logistic and Cox regression models were used to evaluate the effect of timing of VA-ECMO on prognosis of AMICS patients. Kaplan-Meier survival curve was used to analyze the 1-year survival outcome of the 3 groups.Results:A total of 143 AMICS patients were included, and materials of 136 patients entered in the final analysis, including 42 in the early VA-ECMO group, 34 in the late VA-ECMO group, and 60 in the non-VA-ECMO group. Compared with the late VA-ECMO group, the early VA-ECMO group had a higher ratio of PPCI after VA-ECMO, a longer D-to-B time, a shorter VA-ECMO support time, a higher success rate of VA-ECMO withdrawal, and a lower complication rate (all P<0.05). Compared with the early VA-ECMO group, the perioperative, in-hospital and 1-year mortality were significantly higher in Non-ECMO support (all P<0.05). There was no difference in perioperative and in-hospital mortality between the early VA-ECMO group and the late VA-ECMO group, but the 1-year mortality in the late VA-ECMO group was significantly higher ( P<0.05). Perioperative, in-hospital and 1-year mortality rates were lower in the late VA-ECMO group than in the no-VA-ECMO group, but the differences were not statistically significant. Multivariate Logistic and Cox regression analysis showed that after adjusting interference factors, early VA-ECMO was still a protective factor for in-hospital ( OR=0.244, P=0.015) and one year ( HR=0.308, P=0.001)mortality. Kaplan-Merier survival curve showed that compared with the late VA-ECMO group and the group without VA-ECMO, the early VA-ECMO group had the highest 1-year survival rate. Conclusion:Patients with AMICS may benefit more from early VA-ECMO than from late VA-ECMO support for PPCI.

Ankylosing spondylitis (AS) combined with lower cervical fracture is often categorized into unstable fracture, with a high incidence of neurological injury and a high rate of disability and morbidity. As factors such as shoulder occlusion may affect the accuracy of X-ray imaging diagnosis, it is often easily misdiagnosed at the primary diagnosis. Non-operative treatment has complications such as bone nonunion and the possibility of secondary neurological damage, while the timing, access and choice of surgical treatment are still controversial. Currently, there are no clinical practice guidelines for the treatment of AS combined with lower cervical fracture with or without dislocation. To this end, the Spinal Trauma Group of Orthopedics Branch of Chinese Medical Doctor Association organized experts to formulate Clinical guidelines for the treatment of ankylosing spondylitis combined with lower cervical fracture in adults ( version 2024) in accordance with the principles of evidence-based medicine, scientificity and practicality, in which 11 recommendations were put forward in terms of the diagnosis, imaging evaluation, typing and treatment, etc, to provide guidance for the diagnosis and treatment of AS combined with lower cervical fracture.