BACKGROUND: The rehabilitation treatment for acute myocardial infarction has started since 1980' s, but it has not been popularized yet in municipal hospitals due to limited conditions.OBJECTIVE: To probe into the possibility of 3-week rehabilitation intervention in patients with acute myocardial infarction implemented in municipal hospitals.DESIGN: Controlled retrospective analysis was designed.SETTING: Department of Cardiology of YingKou Center Hospital.PARTICIPANTS: Sixty cases of acute myocardial infarction were collected in Department of Cardiology of Center Hospital in Yingkou City in 1996 and they were taken as experimental group. Totally 58 cases of acute myocardial infarction hospitalized in 1986 were taken as the control. In experimental group, 44 cases were males and 16 cases females, aged varied from 34 to 79 years; of which, 45 cases were diagnosed as cardiac dysfunction and cardiac arrhythmia. The situation in the control was near basically to that in experimental group. During the intervention, in experimental group, 10 cases presented chest oppression, 3 cases were afraid to accept the intervention; but by monitoring and explanation, all of those accomplished the experiment.METHODS: In the control, only rational clinical management was given. In experimental group, at the same time of clinical management implemented,the rehabilitation treatment for 3 weeks was carried out for patients with acute myocardial infarction, aiming to earlier movement, earlier getting up, earlier discharge. The rehabilitation procedure stood by gradually increased exercise amount and individualization and it was adjusted according to age, situation of sickness and psychological state, etc. For instance, if the signs of over-endurance presented, the exercise would stop temporarily or the exercise intensity be reduced.MAIN OUTCOME MEASURES: Comparisons of exercise endurance, recovery time of exercise and hospitalizing time in 3 weeks of two groups.RESULTS: The patients in experimental group all accomplished 3-week rehabilitation intervention. In experimental group, the cases, in which, the exercise endurance was up to 5 to 6 equivalents 3 weeks after acute myocardial infarction, were more than the control (78%, 12%, P ＜ 0.05). The cases that were able to go up-down stairs were more than the control(83%, 7%, P＜ 0.05) . The cases hospitalized ＜ 3 weeks were more than the control (78%, 10%, P ＜0.05).CONCLUSION: It is practical and safe to carry on rehabilitation procedure for acute myocardial infarction in municipal hospital. Rehabilitation exercise at the early stage accelerates remarkably the recovery of acute myocardial infarction.

Objective To investigate the correlation between the severity of coronary artery disease with se-rum bilirubin and left ventricular cardiac function. Methods Two hundred and six patients underwent blood bio-chemical ,color-echocardiography and angiography of coronary artery. The patients were divided into 4 ordinal groups according to the Gensini score indicating the severity of coronary artery disease. Results There were significant differences in total bilirubin(TBIL), left atrial dimension (LAD), left ventricular dimension (LVD) and left ventric-ular ejection fraction (LVEF) between the four groups(P<0.05 or P<0.01). The Spearman correlation coefficent between Gensini's scores and LAD, LVD were 0.280 (P=0.000) and 0.176 (P=0.011), respectively. The Spearman correlation coefficient between Gemini's scores and TBIL, LVEF were -0.541 (P<0.000) and -0.222 (P=0.001), respectively. The multiple linear regression between the Gensini's score and parameters showed that TBIL and LVD were independently correlated with the Gensini scores (P=0.000 and P=0.002, respec-tively). Conclusions TBIL and LVD were independently correlated with Gensini's score. LVEF was negatively cor-related with the severity of coronary disease and is a useful predictor for the severity of coronary atherosclerotic heart disease.

Objective To study the pharmacological effects of Qinggong Decoction on sedation and hypnosis. Methods Fifty mice were randomly divided into five groups: NS group, diazepam group, and low-, mid-, high-dose Qinggong Decoction group. Diazepam group was given 0.1 mL/10 g diazepam, and other four groups were given 0.2 mL/10 g corresponding drugs. Spontaneous activities before and after ig. were recorded and the sleeping time of mice with pentobarbital sodium (superthreshold dosage) and the number of the sleeping mice with pentobarbital sodium (subthreshold dosage) were measured. Convulsion model induced by nikethamide was used to observe the change of the seizure rate in mice after given Qinggong Decoction. Results Qinggong Decoction (3.0, 6.0 g/kg) could obviously inhibit spontaneous activities of mice, prolong the sleeping time of mice with pentobarbital sodium (superthreshold dosage) and increase in the number of the sleeping mice with pentobarbital sodium (subthreshold dosage), and had markedly anticonvulsant effect in mice induced by nikethamide. Conclusion Qinggong Decoction has obvious effects of sedation, hypnosis and anticonvulsion.

Objective:To explore the effects of double circumferential fibrotomy(CF)in the improvement of periodontal attachment of the teeth with periodontal disease.Methods:22 migrated incisors of 4 adults were randomly assigned to one-time CF group (T1 )and double CF group(T2)by center line.Periapical intraoral radiographic examination was performed using paralleling technique at pre-and post-leveling-alignment stage of the teeth.Root length,crown-root ratio and the distance of CEJ-AC were measured.The periodontal in-dicators were also recorded during the orthodontic treatment.Data were statistically analysed by comparative t-test.Results:CEJ-AC and crown root ratio reduction was greater in T2 group than those in T1 group(P <0.01 ),but the periodontal indices did not show sig-nificant difference between the 2 groups(P >0.05).Conclusion:Double circumferential fibrotomy can improve periodontal attachment, reasonable orthodontic force does not lead to remarkable root resorption of the periodontitis inflicted teeth.

Objective To discuss the significance of ventricular rate for patients with persistent atrial fibrillation and to provide theoretical evidence for how to prevent patients of atrial fibrillation from complications such as cerebral embolism and left ventricular dysfunction, and so on. Methods Patients with persistent atrial fibrillation for more than 1 year were divided into cerebral embolism group and non-cerebral embolism group,30 patients per group. The data of patients in both groups were collected and compared, including general clinical characteristics, prothrombin time international standard ratio (PT-INR), the highest, lowest and average ventricular rate detected by Holter monitor system, left atria diameter and left ventricular ejecting fraction measured by echocardiography. Results There was no significant difference between two groups about general clinical characteristics, left atria diameter and PT-INR. The highest,lowest and average ventricular rate were much higher in patients of cerebral embolism group than those in non-cerebral embolism group. However, left ventricular ejecting fraction was much lower in embolism group. Conclusions It is critical to control heart rate for patients of persistent atrial fibrillation to prevent cerebral embolism and left ventricular dysfunction.

Objective:To analysis the relationship of cephalometric measurements from intercuspal position(before and after treat-ment)and retruded contact position(before treatment).Methods:18 cases with Class III malocclusion were treated using MBT straight wire appliance technique,all the incisal relationships could be edge-to-edge when the mandible was retruded,X-ray films of intercus-pal position and retruded contact position before treatment and intercuspal position after treatment were taken.The cephalometric meas-urements were statistically analysed by ANOVA.Results:After 25 months treatment the anterior crossbite were corrected in all cases. The molar relationship were class Ⅰ.The measurements of SNB,ANB,MP-FH,MP-SN,U1-SN,L1-MP,Y-axis angle and ANS-Me were significantly changed.Conclusion:After the treatment of Class III malocclusion by MBT straight wire appliance,the sagittal and vertical mandibular location can be between intercuspal position and retruded contact position of pretreatment,and it is more close to the retruded contact position.

Objective:To explore the effect of behavioral training of creative art therapy(CAT) on interpersonal communication in teenagers.Methods:Eighty teenagers were randomly divided into study group( n=40) and control group( n=40).The study group was received the behavioral training of CAT (12 times, each activity lasts for 120 min), and the control group did not take part in the behavioral training of CAT.The two groups were measured with self-esteem scale(SES), shyness scale(SS) and social anxiety scale for children(SASC) before and after behavior training.SPSS 17.0 software was used for statistical analysis, and t-test variance analysis and Mann-Whitney U test were used to compare the differences between groups or within groups. Results:Before and after behavioral training, changes in the SES total score (7.00(5.00, 9.75) vs 1.00(0, 2.00)), the SS total score (7.00(6.00, 12.75) vs 2.00(1.00, 3.00)), the SASC total score (5.00(2.00, 8.75) vs 0(0, 1.00)) and two factor scores (3.00(0.25, 5.00) vs 1.00(0, 1.00), 2.00(1.00, 4.00) vs 0(0, 1.00))in the study group were obviously higher than those in the control group( Z=-7.347, -7.338, -5.841, -4.122 and -5.393, all P<0.05).The score differences of the SASC total score ((7.19±3.82) vs (3.21±3.04)) and two factor scores ((4.00±2.23) vs (1.68±2.05), 3.00 (1.00, 5.00) vs 2.00 (0, 2.00)) of girls were significantly higher than those of boys in the study group ( t=-3.611, -3.398, Z=-2.111, P=0.001, 0.002, 0.035). Conclusion:Behavioral training of CAT can improve teenagers' self-esteem, relieve their shyness and social anxiety, as well as promote their interpersonal communication.

Objective: To investigate the awareness, sexual behavior characteristics and infection status of AIDS among male floating population in Anhui Province, so as to provide insights into formulating prevention and control measures for male floating population. Methods: Male floating population of three occupations including construction workers, enterprise workers, and business operators in Wuhu, Tongling, Hefei, and Fuyang cities were selected using stratified cluster random method from April to August 2021. Demographic information, knowledge of AIDS and high-risk behaviors were collected through questionnaires surveys. The results of HIV, syphilis and hepatitis C virus (HCV) antibody testing were collected through laboratory tests. Awareness rate of AIDS knowledge, sexual behavior characteristics, and positive rates of HIV, syphilis, and HCV among male floating population of different occupations were analyzed. Results: A total of 1 616 people were enrolled, including 1 016 construction workers (62.87%), 253 enterprise workers (15.66%) and 347 business operators (21.47%), and had a mean age of (40.63±12.32) years. The overall awareness rate of AIDS knowledge among male floating population was 89.54%, the awareness rates of business operators, construction workers, and enterprise workers were 98.33%, 88.29% and 82.61%, respectively, and the difference was statistically significant (P<0.05). The proportions of consistent condom use during sexual intercourse with a spouse or cohabitant, during commercial sexual encounters, and with casual partners in the past year were 7.15% (91/1 273), 64.00% (16/25) and 50.00% (8/16), respectively. The proportions of construction workers, enterprise workers, and business operators who used condoms every time they had sexual behavior with their spouses/cohabitants in the past year were 4.54%, 11.63%, and 15.60%, respectively, with statistically significant differences (P<0.05). One case of HIV, one case of syphilis, and three cases of HCV antibody were detected. Conclusion The overall awareness rate of AIDS knowledge among the male floating population in Anhui Province is relatively high, but unsafe sex behaviors exist, which may lead to the risk of HIV infection.

This study was aimed to observe influence of disease/syndrome on the toxicity and effect of aconite roots, in order to reveal relationship among disease/syndrome, toxicity and effect. The mice model of cold syn-drome was establish by wind-cold stimulation. The pain model was established by intraperitioneal injection of glacial acetic acid. Then, LD50 and ED50 of analgesic effect were compared, as well as the therapeutic index (TI) of crude aconite roots. The rat model of cold syndrome was also established by wind-cold stimulation. And the rheumatoid arthritis (RA) model was established by intracutaneous injection of CII and CFA. TD50 of cardiac toxic-ity and arthroncus degree of prepared aconite roots were compared among the normal rats, RA rats, RA with wind-cold stimulation rats according to the recording of lead II ECG. The results showed that after wind-cold stimulation, mice and rats appeared with symptoms which were similar to Chinese medicine cold syndrome. Com-pared with normal mice, LD50 and TI increased, but ED50 decreased in the group of wind-cold stimulation after using powders of crude aconite roots. Compared with normal rats, TD50 of cardiac toxicity and arthroncus degree in-creased in groups of RA and RA with wind-cold stimulation after using prepared aconite roots. It was concluded that in the case of disease/syndrome state, the toxicity of aconite roots decreased, but its effect increased. It sug-gested that there is a significant correlation among disease/syndrome, toxicity and effect.

Objective:To evaluate dental and skeletal changes following slow maxillary expansion with quad helix using Cone-Beam computer tomography (CBCT).Methods:13 patients(5males and 8 females,mean age 14.38 ±2.22 years)requiring maxillary ex-pansion as a part of their comprehensive orthodontic treatment were included.Each patient had CBCT images taken pre-(T1 )and post-(T2)maxillary expansion with quad helix.Changes of the distances between bilateral canines,first premolars,second premo-lars,first molars,the width of basal bone and palatal suture were measured.paired t-test results were analyzed using SPSS 17.0 soft-ware.Results:The distances between the 4 bilateral teeth increased by (2.47 ±1.05)mm,(2.97 ±1.90)mm,(2.79 ±1.21) mm and (3.15 ±1.15)mm,the apical distances decreased by (1.19 ±0.40)mm,(2.12 ±0.68)mm,(2.02 ±0.65)mm and (1.34 ±0.63)mm,respectively.The inclination of the first molars were decreased by (4.45 ±2.86)°and (4.02 ±1.45)°on the left and right side respectively.The width of basal bone and palatal suture increased by (2.37 ±0.96)mm and (1.21 ±0.50)mm respectively,the differences between T1 and T2 were all statistically different(P <0.001).Conclusion:Quad helix expands maxil-lary arch by greater dental changes than by skeletal changes.