ABSTRACT
Objective To improve the detection accuracy of cerebral venous thrombosis (CVT) in the first imaging examination and to guide the treatment and improve the outcome. Methods Imagings of 17 CVT cases were retrospectively analyzed and the missed diagnosis and misdiagnosis reasons were summarized. Results All the 17 cases were taken CT examination. 7 cases were missed diagnosed and misdiagnosed. 2 of 7 cases were diagnosed as subarachnoid hemorrhage. 1 of 7 cases was diagnosed as the left occipital subacute subdural hematoma. 1 of 7 cases was diagnosed as the right frontal and parietal and occipital lobes cerebral hemorrhage. 1 of 7 cases was diagnosed as the left parietal and occipital lobes cerebral hemorrhage and broken into ventricles. 2 of 7 cases were diagnosed as negative. Conclusion To summerize the reasons of missed diagnosis and misdiag aosis of CVT can improve the detection accuracy in the first imaging examination.
ABSTRACT
<p><b>OBJECTIVE</b>To study the feasibility of resuscitation after selective cerebral ultra-deep hypothermia and blood flow occlusion.</p><p><b>METHODS</b>Ten 4-10 year-old maca mulattas were divided into 3 groups: four-vessel occlusion group, two-vessel occlusion group and identical temperature perfusion group. MRI were examinated before and after operation, the vital signs and the hemodynamical parameters were observed during the experiment, neurological deficient evaluation was performed after operation.</p><p><b>RESULTS</b>In all of the ten monkeys, the hemodynamical parameters of two-vessel occulation were steady during the operation, and all of them lived after filling 60 minutes. MRI were normal after operation, and the function of neurological deficient scale was normal. The others of identical temperature perfusion group and four-vessel occlusion group were not resuscitation after filling 60 minutes and died.</p><p><b>CONCLUSION</b>Monkey could resuscitate from selective cerebral ultra-deep hypothermia and blood flow occlusion of bilateral common carotid artery in 60 minutes.</p>
Subject(s)
Animals , Male , Brain Ischemia , Carotid Artery, Common , General Surgery , Disease Models, Animal , Extracorporeal Circulation , Methods , Hypothermia, Induced , Macaca mulatta , Reperfusion , Methods , Resuscitation , Vertebral Artery , General SurgeryABSTRACT
<p><b>OBJECTIVE</b>To study the effects of deep hypothermia on the neuronal ultrastructure and nervous system of monkey after selective cerebral profound hypothermia and blood flow occlusion.</p><p><b>METHODS</b>Brain-local extracorporeal circulation was established by right internal carotid artery deep hypothermic perfusion and homolateral external jugular vein backflow, brain blood flow was recovered from circulatory arrest 60 - 80 minutes late and monkey came back naturally.</p><p><b>RESULTS</b>In all 7 monkeys, 5 were succeeded in being build up the models except for 2 because of technic problems, and 4 of them lived up for ever. The function of nervous system grade, essential organ and neuronal ultrastructure were normal.</p><p><b>CONCLUSION</b>Selective cerebral profound hypothermia can increase the ability of brain to endure hypovolemia and hypoxidosis and prolong the time of blood flow occlusion.</p>
Subject(s)
Animals , Female , Male , Brain Ischemia , Pathology , Cerebrovascular Circulation , Disease Models, Animal , Extracorporeal Circulation , Haplorhini , Hypothermia, Induced , Time FactorsABSTRACT
Objective To investigate the activity change pattern and corresponding significance of gly- colytic enzymes including alsolase A(ALDA)and lactate dehydrogenase M(LDH-M)regulated by hy- poxia-inducible factor 1?(HIF-1?)in spinal cord injury(SCI)of rats.Methods SD rats were ran- domly divided into control group and groups at 12 hours,1,2 and 3 days,1 and 2 weeks after compres- sive SCI,in which the activity changes of ALDA and LDH-M in the injured spinal cord were observed at different time points by means of enzyme histochemistry.Results Opitical density(A)value of AL- DA continued significant increase from two days to one week after SCI(P＜0.05)and decreased gradual- ly at 2 weeks after SCI.A value of LDH-M began significant increase at day 1 after SCI and recovered to normal level at 2 weeks after SCI(P＜0.05).Conclusion Activities of ALDA and LDH-M regulated by HIF-1?in spinal cord injury is significantly increased.