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Objective @#To explore the imaging characteristics of the mandibular nerve canal in adults to provide a reference for clinical mandibular surgery.@*Methods@# One thousand adult patients in Guiyang Stomatological Hospital from January 2018 to January 2021 were randomly selected. Cone beam CT (CBCT) was used to observe the anterior mandibular canal and other branches, and the incidence of anterior canal in the mandibular ramus area, posterior molar area and molar area and the distance to each point of the mandible were measured.@*Results@#Of the 901 patients (1 802 sides) included in the study, 386 patients (42.84%) found branches of the mandibular canal, and 182 patients (97 males and 85 females) found the Anterograde Canal 20.20% (182/901). In total, 225 mandibles were found to have anterior canals. There were 101 cases of left mandible and 124 cases of right mandible. The forward canal mainly occurred in the molar area, the molar posterior area and the ascending branch area, and the ascending branch area was the best starting point of the forward canal and the molar stopping point (P < 0.05). The average length of the forward canal (L1) was (10.364 ± 3.833) mm, the average height of the forward canal to the main trunk of the mandibular nerve (L2-RRB) was (3.623 ± 2.035) mm, and the average height of the forward canal to the crest of the alveolar ridL3 (l3) was (9.280 ± 3.240) mm.@*Conclusion@#Mandibular nerve canal branches are common, and there were no differences in male, female and lateral distribution. In this study, the incidence of mandibular anterior canal was the highest, and it often occurred in the molar area.
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Objective To investigate the incidence of recurrence and occurrence rate of recurrence of hand-foot-and-mouth disease (HFMD)in Jiangbei District of Ningbo City between 2012 and 2014,analyze the influencing fac-tors,and provide a scientific basis for the prevention and control of HFMD.Methods Data of HFMD in Jiangbei in 2012-2014 were collected from China Disease Surveillance Information System,immunization data were from Im-munization Programme Information System of Ningbo City,the recurrent infectious cases were selected and analyzed by descriptive epidemiological methods.Results The occurrence rate of recurrent HFMD in Jiangbei in 2012-2014 was 5.40% ,the median month of patients with single occurrence and recurrence of HFMD were 33.77(20.03, 47.83)and 38.26(22.05,54.75)months respectively,median month of patients with the initial occurrence were 23.93(15.87,36.87)months,median of time interval of recurrent HFMD was 10.27(5.23,16.06)months. The oc-currence rate of recurrence was the highest in 3- years old group(χ2= 37.51,P<0.001). Most were scattered chil-dren and children in child-care center. Female was a protective factor of recurrence of HFMD (OR,0.73[95% CI, 0.57-0.92]),while children in child-care center was a risk factor (OR,1 .46[95% CI,1 .16-1 .84]). The median attack rate of recurrence in HFMD group and control group in blocks within 7 days were 10.36(9.29,11.44)/100000 and 8.95(8.16,9.74)/100000 respectively,there was significant difference(Z= -2.68,P<0.001). In-oculation frequency between recurrent HFMD group and control group was not significantly different (Z= -1.38,P= 0.17).Conclusion The epidemic of recurrence of HFMD was serious in Jiangbei District of Ningbo City between 2012 and 2014,boys and children in child-care center should be paid attention,contacts with patients should be re-duced,and targeted prevention and control measures should be carried out.
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Objective To understand the influence of meteorological factors on Oncomelania density in natural condition and provide scientific evidence for the control of the spread of schistosomiasis and Oncomelania.Methods Based on the Oncomelania survey data in spring and ground meteorological observation data of Qianjiang from 1990 to 2014, the first-order autoregressive analysis method was used for trend fitting and disassemble, and the correlation between the change rate of Oncomelania density and various meteorological factors in different periods were analyzed.Results The greatest influence of meteorological factors on Oncomelania density was temperature,followed by precipitation.The average minimum temperature in January and from December to February had predominant influence on Oncomelania density and frame occurrence rate of living Oncomelania (FORLO) respectively.The rise (fall) of average minimum temperature in January by 1 ℃ would lead to the increase (decrease) of Oncomelania density by 5.080％-6.710％;The rise (fall) of average minimum temperature from December to February by 1 ℃ would lead to the increase (decrease) of FORLO by 15.521％-15.928％.The period with the biggest influence of precipitation on Oncomelania density was from November to April, as the rainfall declined ＞20％, drought might occur, which would cause the reduction of Oncomelania density.Sunshine from September to November had some correlations with the change of Oncomelania density and FORLO.Statistical regression models for the change of Oncomelania density, FORLO and meteorological factors based on correlation analysis were established respectively.Conclusion Weed removal in Oncomelania areas before December is beneficial to reduce the surface temperature and soil moisture content, which would result in Oncomelania density reduction in some extent.It' s notable that the winter temperature is in rise in Hubei province along with global climate change, causing the Oncomelania density to increase, to which more attention should be paid.
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Objective To investigate the detection rate of couples at high risk of bearing babies with severe thalassemia and the occurrence rate of birth defect caused by severe thalassemia among the people at reproductive age in Foshan city ,Guangdong prov‐ince .Methods Peripheral blood samples were collected from 17 522 preparing pregnant couples of child bearing age .Mean corpus‐cular volume (MCV) <80 fL was used as the positive indication for screening thalassemia .And 348 positive samples were detected by molecular biological technique for further analysis .Statistical analysis was conducted based on the couple′s genetic test results . Results Among the people at reproductive age ,the detection rates of couples bearing babies with Hb Bart′s Hydrops Fetalis ,He‐moglobin H disease andβ‐thalassemia were 0 .36% ,0 .47% and 0 .20% respectively ,the total was 1 .03% .The occurrence rates of birth defect caused by the above severe thalassemia were 9 .0/10 thousand ,11 .8/10 thousand and 5 .0/10 thousand ,the total was 25 .8/10 thousand .Conclusion This research illustrated the degree of damage of birth defect caused by severe thalassemia among the people at reproductive age ,which could provide valuable fundamental materials for the launch of eugenic work in this region .
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Objective To investigate prevalence of long-term mental disorders following traumatic brain injury (TBI) in 4 ～ 13 years. Methods Of the 4287 patients with traumatic brain injury by systematic sampling.675 subjects were screened by the manual of the psychiatric consequences following traumatic brain injury. The final diagnoses of mental disorders were determined by two advanced psychiatrists based on CCMD-3 on the criteria of organic mental disorders. Results ① Of the 675 subjects with traumatic brain injury,206 had satisfied diagnosed criteria of one or more organic mental disorder syndromes by CCMD-3, and with dementia 17.48% , amnestic syndrome 1. 04% , personality or behaviour change 13. 84% , psychotic syndrome 1. 19% , depressive syndrome 7.41% ,manic syndrome 0.30% ,hysteric syndrome 0.98% , neurotic syndrome 10. 22%. ②The incidence of the mental disorders in the subjects with severe TBI was significantly higher than that of moderate and mild TBI,separately 66.01% (134/203) ,18.04% (46/255) and 11.98% (26/217 ),λ2 =109.03 and 129.82 separately(P< 0.01). ③The incidence of the personality or behaviour change in male was significantly higher than that of female, separately 15.31% and 6.98% (λ2 =5.65, P<0.05). The incidence of the neurotic syndrome in female was significantly higher than that of male, separately 15. 12% and 8. 55% (λ2 = 6. 02, P < 0.05). Conclusion The high incidence of the mental disorders in the patients with TBI should not neglect. There are more high occurrence rate with more severe degree of brain injuries.
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PURPOSE: We carried out this study to determine if there is any difference in the occurrence rate of the epileptiform discharge between awake EEG and sleep EEG and if there are any factors influencing on the occurrence rate of EEG. METHODS: This study included 178 epileptic children who had visited neurology clinic of the department of pediatrics, Pusan National University Hospital from July 2005 to July 2006. The medical and EEG records of these children who had had both awake EEG and sleep EEG were reviewed. We analysed the occurrence rate of the epileptiform discharge between awake EEG and sleep EEG. We investigated the related clinical factors which included sex, seizure types, underlying causes, age at first seizure, antiepileptic drug (AED) medication, age at recording, and background activity. RESULTS: Among 178 epileptic children, 91 patients (51.1%) showed epileptiform discharge in awake or sleep states, 10 patients (11.0%) abnormal only in awake, 40 patients (44.0%) abnormal only in sleep, 41 patients (45.0%) abnormal in both awake EEG and sleep EEG. The occurrence rate of sleep EEG was 81 of 178 patients (45.5%) which was more than that of the awake EEG (28.7%) (P<0.001). The occurrence rate of sleep EEG is more than that of the awake EEG regardless of sex and underlying causes. But there is no significant difference from awake EEG and sleep EEG in finding the epileptiform discharge in the patient with generalized seizure, younger than 5 years old at first seizure, younger than 10 years old at recording, no antiepileptic medication, and abnormal background activity. CONCLUSION: The sleep EEG is thought to be more helpful in the diagnosis of childhood epilepsy.
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Child , Humans , Electroencephalography , Epilepsy , Neurology , Pediatrics , SeizuresABSTRACT
Objective To understand the current status and related factors of unexpected injuries during hospitalization in old patients in Shaoxing city. Methods By way of convenient sampling methods, 850 old patients aged over 65 years were chosen from five of grade 3 hospitals in Shaoxing city. The status and consequence of unexpected injuries during their hospitalization in past one year were retrospectively investigated with face to face questionnaire at patients home. Results The occurrence of unexpected injuries in 850 hospitalization old patients were 54(6.35%) during their hospitalization in past one year. The occurrence rate in female (9.27%) was significantly higher than that in male (4.25%) (?2=7.57, P
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@# ObjectiveTo examine the occurrence rate of visuospatial hemi-neglect of patients with cerebral injury with behavioural inattention test (BIT) (Japanese version),and assess the validity of the BIT test.Methods22 subjects (16 with right hemispheric damage and 6 with left hemispheric damage) were tested with BIT. ResultsThe rate of visuospatial hemi-neglect in 22 patients with hemispheric damage was 36.4% (8 cases) , and that rate in 16 patients with right hemispheric damage was 31.3% (5 cases), in 6 patients with left hemispheric damage was 50% (3 cases).ConclusionThe occurrence rate of visuospatial hemi-neglect appears to be independent from male or female, age, course of disease and education level of study subjects.
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Objective To discuss the indications for cesarean section in our hospital in recent years.Methods We retrospectively studied the indications for cesarean section of 949 caases in our hospital .Results The average rate of ceasarean section was 34.9%.The order of indications were as following;pregnancy complications(29.6%),relative cephalopelvic monosymmetry(10.6%),breech presentation(10.2%),fetal distress(9.8%),fetal macrosomia(9.2%) and scar uterus(8.9%).The correspondent rate in the diagnosis of fetal macrosomia was 67.5%.The rate of neonatal asphyxia was 6.7%.Conclusion Obstetric medical staff should improve their opinion on the cesarean section and master the indications appropriately.
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Sixteen male swine were utilized to study the occurrence of acetylcholine (ACh) induced coronary spasm using catheters. The left anterior descending coronary arteries (LAD) of the swine were denudated by catheterization under anesthesia. The swine were divided into three groups and fed for four weeks. Group A received Tokishakuyaku-san (0.66g/kg/day; Tsumura Co. Ltd.; n=6) in addition to the basal rations; group B received Mokuboi-to (0.25g/kg/day; Tsumura Co. Ltd; n=5) in addition to the basal rations; and the control group were fed for four weeks on the basal rations alone. The Kampo formulas were administered via stomach tubes in groups A and B.<br>Coronary spasms induced by catheter administration of ACh (100-250μg) were evaluated by elevation of the ST segment as measured by electric cardiography, and vasoconstriction of the LAD as ascertained by cineangiography.<br>The ACh-induced coronary spasms were found to either be of the diffuse type or LAD segmental type. Coronary spasms were noted to occur at a frequency of 5/13 in group A, 5/12 in group B and 7/13 in the control group, without significant differences among the groups. Groups A and B, however, exhibited a tendency towards a decreased rate of coronary spasm (40%) when compared to the control group (53.8%).<br>The vasoconstriction rate (VCR) was also calculated, interpreted as a morphological index of spasms as proposed by Takeuchi (1974). The VCR was higher in the spastic segment of the LAD than in the non-spastic LAD. It was suggested that Tokishakuyaku-san and Mokuboi-to have antispasmodic effects and may reduce the occurrence rate of spasms in swine LAD.