ABSTRACT
SUMMARY: This study aimed to compare the clinical value of carotid ultrasound and digital subtraction angiography (DSA) for carotid artery stenosis in patients with cerebral infarction. Sixty patients with cerebral infarction underwent carotid ultrasound and DSA. Carotid artery stenosis, degree of stenosis (mild, moderate, severe, and occlusion), and carotid artery plaques were recorded and compared. Carotid stenosis rate was 96.67 % (58/60) and 91.67 % (55/60) on DSA and carotid ultrasound, respectively, and the difference was not statistically significant. Mild, moderate, and severe carotid artery stenosis and occlusion were diagnosed in 35, 28, 20, and 17 arteries, respectively, with DSA, and in 39, 25, 10, and 9 arteries, respectively, with carotid ultrasound. There was a statistically significant difference in the degree of carotid stenosis between the two methods (p<0.05). The kappa value of carotid plaques detected by carotid ultrasound and DSA was 0.776, indicating good consistency. Both carotid ultrasound and DSA are effective for screening carotid artery stenosis and carotid atherosclerotic plaques. While carotid ultrasound is faster and more convenient, DSA can more accurately detect the degree of stenosis and presence of occlusion. Thus, our recommendation is a combination of carotid ultrasound and DSA in clinical settings to improve the convenience and accuracy of diagnosis.
Este estudio tuvo como objetivo comparar el valor clínico de la ecografía carotídea y la angiografía por sustracción digital (DSA) para la estenosis de la arteria carótida en pacientes con infarto cerebral. Sesenta pacientes con infarto cerebral fueron sometidos a ecografía carotídea y DSA. Se registraron y compararon la estenosis de la arteria carótida, el grado de estenosis (leve, moderada, grave y oclusión) y las placas de la arteria carótida. La tasa de estenosis carotídea fue del 96,67 % (58/60) y del 91,67 % (55/60) en DSA y ecografía carotídea, respectivamente, y la diferencia no fue estadísticamente significativa. Se diagnosticaron estenosis y oclusión de la arteria carótida leve, moderada y grave en 35, 28, 20 y 17 arterias, respectivamente, con DSA, y en 39, 25, 10 y 9 arterias, respectivamente, con ecografía carotídea. Hubo una diferencia estadísticamente significativa en el grado de estenosis carotídea entre los dos métodos (p<0,05). El valor kappa de las placas carotídeas detectadas por ecografía carotídea y DSA fue de 0,776, lo que indica una buena consistencia. Tanto la ecografía carotídea como la DSA son eficaces para detectar la estenosis de la arteria carótida y las placas ateroscleróticas carotídeas. Si bien la ecografía carotídea es más rápida y conveniente, la DSA puede detectar con mayor precisión el grado de estenosis y la presencia de oclusión. Por lo tanto, nuestra recomendación es una combinación de ecografía carotídea y DSA en entornos clínicos para mejorar la conveniencia y precisión del diagnóstico.
Subject(s)
Humans , Male , Female , Ultrasonics , Angiography, Digital Subtraction , Cerebral Infarction/complications , Carotid Stenosis/diagnostic imaging , Retrospective Studies , Carotid Stenosis/etiologyABSTRACT
Objective@#To analyze the epidemiological characteristics of plant and mushroom poisoning events among people aged 0-19 in Guizhou Province from 2015 to 2019, so as to provide the basis for prevention and control of food poisoning events among children and adolescents.@*Methods@#Data of people aged 0 to 19 involved in plant and mushroom poisoning incidents reported by the foodborne disease outbreak surveillance system in Guizhou Province from 2015 to 2019 were collected, verified, sorted and statistically analyzed.@*Results@#From 2015 to 2019, there were 590 cases of plant and mushroom poisoning among people aged 0 to 19 in Guizhou Province, 1 441 people were poisoned and 5 died. In May and September, family and collective dining halls were the places with the highest incidence of plant and poisonous mushroom poisoning incidents, accounting for 90.68% (535/590) of the total incidents. Poisonous mushrooms and masanberry accounted for 71.69% (423/590) of the food poisoning causes, and 5 people died of poisoning were caused by poisonous mushrooms.@*Conclusion@#In the cases of plant and mushroom poisoning among people aged 0-19 years in Guizhou Province,preschool primary and middle school students in rural areas are most vulnerable population of poisoning, so it is necessary to strengthen the publicity and education on the prevention and control of toxic plant and mushroom poisoning among children and teenagers in rural areas, so as to reduce the occurrence of relevant poisoning incidents.
ABSTRACT
Objective@# To study the effects of different concentrated sulfuric acid etching durations on the shear bond strength between polyether-ketone-ketone (PEKK) and dentin, providing a scientific basis for the clinical bonding procedures of PEKK prosthesis.@*Methods@# Forty-four PEKK specimens were prepared and randomly divided into four groups: group A was the control group, which was only polished with abrasive papers, group B, group C and group D were experimental groups, which were etched by 98% concentrated sulfuric acid for 5 s, 30 s and 60 s, respectively. In addition, one sample was randomly selected from each group, and the profile was prepared by a slow cutting machine. The surface morphology of the profile was observed under SEM. After the four groups of specimens and dentin were bonded by resin, they were soaked in distilled water at 37 ℃ for 24 h. After the shear bonding strengths were measured, the fracture interfaces of the specimens were examined by the scanning electron microscopy and stereomicroscopy, and failure models of bonding were analyzed. @*Results@#After acid etching treatments, the cross-sectional images in group B presented uniform spongy shapes, while the cross-sectional images in group C and group D showed destructive pore structures. The shear bond strengths of group B (16.84 ± 1.84) MPa, group C (12.33 ± 1.22) MPa and group D (6.44 ± 1.18) MPa were higher than that of group A (3.99 ± 1.06) MPa (P < 0.05). The highest shear bond strength was observed in group B (16.84 ± 1.84) MPa. @*Conclusion @#The surface treatment of 98% sulfuric acid etching for 5 s manifested the best bond strength between PEKK and dentin.
ABSTRACT
Objective@#To analyze the rule and characteristics of school food poisoning incident in Guizhou Province during 2011-2018. @*Methods@#Data of school food poisoning incidents were collected from the Foodborne Disease Outbreak Surveillance System in Guizhou Province during 2011-2018 and statistically analyzed.@*Results@#A total of 78 cases of food poisoning occurred in schools in Guizhou Province during 2011-2018. Among the 1 506 cases, 869 hospitalized and 1 died. May was peak time for school food poisoning. Most of the incidents (83.33%, 65/78) occurred in the school canteens. Plant origin products (50%, 39/78), especially spoiled rice, were the most common types of food poisoning in school(16.67%, 13/78).@*Conclusion@#Primary and secondary school students were the largest group for school food poisoning in Guizhou province. It was necessary to strengthen the supervision and management of school canteens and surrounding places, as well as to improve the food safety awareness of food operators and students, preventing similar incidents from happening again.
ABSTRACT
<p><b>OBJECTIVE</b>To study the relationship between the positive antisperm antibody (AsAb) and nitric oxide (NO) content in blood of infertile patients and the therapeutic effect of integrative Chinese and western medicine (ICWM) treatment on the disease.</p><p><b>METHODS</b>Infertile patients, 75 of AsAb positive and 68 of AsAb negative were selected to observe the mature partuient rate and abortion rate. Serum NO level were measured before treatment to observe the relationship between NO and positive AsAb. Patients were treated with ICWM and followed-up for five years.</p><p><b>RESULTS</b>Mean value of serum NO in patients with positive AsAb was significantly higher than that in fertile women, and there was no significant difference between patients with negative AsAb and fertile women (P < 0.01). In the 5 years after treatment, the mature partuient rate between the two groups showed insignificant difference (P > 0.05).</p><p><b>CONCLUSION</b>AsAb positive and NO level abnormal may interfere mutually, to intervent the reproductive process. ICWM therapy could effectively regulate auto-immunity and endocrine function, and make the infertile patients obtain satisfactory efficacy.</p>