Objective　To observe the influence of pre-infarction angina on ventricular function and prognosis of first acute myocardial infarction in old people. Methods　76 first acute myocardial infarction old patients was divided into two groups: angina pectoris group (n=42); no angina pectoris group (n=34). Global left ventricular function was assessed by echocardiography, arrhythmia, cardiogenic shock, heart failure, post-infarction angina and mortality was observed in hospital. Results　The rate of cardiogenic shock and heart failure and mortality was lower in angina pectoris group (33.3% vs 58.8%; 2.4% vs 23.5%), LVEF and E/A was higher in angina pectoris group (0.52±0.056 vs 0.45±0.03,0.86±0.29 vs 0.54±0.35), P<0.05. Conclusion　pre-infarction angina possesses the protecting effects on ventricular function of first acute myocardial infarction in old people, and can improve the prognosis of first acute myocardial infarction in old people.

Objective To investigate whether terminal QRS distortion on the electrocardiogram in acute inferior myocardial infarction could be as a standard for the infarct-related artery,through comparing to coronary angiography.Methods Fifty-seven patients with acute inferior myocardial infarction were enrolled,among which,the right coronary artery (RCA) occlusion (RCA occlusion group) was present in 29 cases,and left circumflex coronary artery (LCX) occlusion (LCX occlusion group) was in 28 cases.The changes of electrocardiogram was analyzed in 12 hours after the acute episode.Results The incidence of terminal QRS distortion in leads Ⅱ,Ⅲ,aVF in RCA occlusion group was 44.8％(13/29) and 39.3％(11/28)in LCX occlusion group,and there was no significant difference (P ＞ 0.05).The incidence of terminal QRS distortion in leads V4R-V5R in RCA occlusion group was 17.2％(5/29) and 7.1％(2/28) in LCX occlusion group,and there was no significant difference (P ＞ 0.05).The incidence of terminal QRS distortion in leads V7-V9 in RCA occlusion group was 6.9％(2/29),which was lower than that in LCX occlusion group[53.6％(15/28)],and there was significant difference (P ＜ 0.05).For identifying LCX as the infarct-related artery of acute inferior myocardial infarction,the sensitivity,specificity,positive and negative value in terminal QRS distortion in leads V7-V9 were 53.6％ (15/28),93.1％ (27/29),88.2％ (15/17),67.5％ (27/40).The area under curve of terminal QRS distortion in leads V7-V9 in identifying LCX as the infarct-related artery of acute inferior myocardial infarction was 0.733 (95％ CI 0.599-0.868).Conclusion Terminal QRS distortion in leads V7-V9 may be of diagnostic value in identifying the infarct-related artery in acute inferior myocardial infarction.

Objective To study the methods of clinic diagnosis and treatment for chronic lumbar pain induced by lumbo-sacral compartment syndrome. Methods Thirty-three patients with chronic lumbar pain induced by lumbo-sacral compartment syndrome were diagnosed by physical, radiological examination and intra lumbo-sacral muscle compartmental pressure measurement. 33 patients consisted of 15 men and 18 women, with the mean age 42.3 years, and mean duration of chronic lumbar pain was 27 years. Lumbar erector spinae osteo-facial compartment was decompressed using mini-invasive surgery. Lumbar and abdomen muscles were rehabilitated extensively after operation. Results After operation, symptoms of low back pain were alleviated significantly, and walking distance were promoted as well. Post operative flexion and extension of lumbar spine were increased to (15??0.5?) and (7??0.7?) respectively. Intramuscular pressure in rest state, during movement and no more than 6 min after movement was (6.8?0.8), (162.3?12.35) and (7.1?0.6) mm Hg respectively [before operation was(10.4?0.9), (187.1?11.16) and (13.2?1.3) mm Hg respectively, P

ADP-ribosyl Cyclase 1 ; immunology ; Biopsy ; Bone Marrow ; immunology ; pathology ; Epoxy Resins ; Humans ; Immunohistochemistry ; Ki-67 Antigen ; immunology ; Plastic Embedding ; Staining and Labeling ; methods

Objective To investigate the value of Adobe Photashop images software in the verifica-tion of radiation portal. Methods The portal and simulation films or CT reconstruction images were impor-ted into computer using a scanner. The image size, gray scale and contrast scale were adjusted with Adobe Photoshop images software, then image registration and measurement were completed. Results By the com-parison between portal image and simulation image, the set-up errors in right-left, superior-inferior and ante-rior-posterior directions were (1.11 ± 1.37) mm, (1.33 ± 1.25) mm and (0.83±0.79) mm in the head and neck;(1.44±1.03) mm,(1.6±1.52) mm and (1.34±1.17) mm in the thorax;(1.53±0.86) mm, (1.83 ± 1.19) mm and (1.67 ± 0.68)mm in the abdomen; (1.93 ± I. 83) mm, (1.59 ± 1.07)mm and (0.85 ± 0.72)mm in the pelvic cavity. Conclusions Accurate radiation portal verification and posi-tion measurement can be completed by using Adobe Photoshop, which is a simple, safe and reliable method.

Objective To analyze the changes of heart rate turbulence (HRT) and heart rate variability (HRV) in coronary heart disease (CHD), and evaluate the relationship between CHD and coronary artery disease (CAD) and two parameters of HRT and HRV, and investigate the correlation between the 2 parameters.Methods We performed coronary angiography in all 103 patients with CHD (group A), who were classified into 3 subgroups: 35 patients of stable angina pectoris ( group A1 ), 28 patients of unstable angina pectoris ( group A2 ) and 40 patients of AMI ( group A3 ), and 30 structurally normal patients with ventricular premature contraction who were included in healthy control group ( group B).The 24-hour ambulatory electrocardiogram was performed in all the patients, and the parameters of HRT and HRV were obtained.Results The value of the TO onset of group A was significantly higher than that of group B( -4.17± 2.75, - 3.16 ± 3.18, - 0.96 ± 2.92; - 6.30 ± 3.47 ), the value of TS of group A was lower than that of groupB(6.81±3.18,5.12±3.31,3.20±1.71;9.52±3.85) (P ＜0.05 orP ＜0.01).The values of SDNN, PNN50, and HF of group A were significantly lower than those of group B (P＜ 0.05).TO was positively correlated with Gensinies score, while TS, SDNN, PNN50 and HF were negatively correlated with Gensinies score, and TS showed the strongest negative correlation with Gensini score (r=-0.45).TO was negatively correlated with SDNN, PNN50, and HF, while TS was positively correlated with SDNN, PNN50 and HF, and TS showed much stronger correlation with HF (r=0.47).Conclusions HRT was dramatically blunted and HRV in patients with CHD was significantly lower;.HRT and HRV of group A1 were significantly correlated with Gensini score, and TS had the strongest correlation with Gensini score.TO and TS were correlated with SDNN, PNN50 and HF, and TS had much stronger relationship with HF.

Objective To propose a stream-media technology based on the new transmission technology. Methods Firstly,we explored the advantages and disadvantages of exiting PACS image in LAN (Local Area Network) and WAN (Wide Area Network) and then expounded distance diagnosis related to HIS and PACS,VPN technology,wireless network applications,more points consultation applied technology. At last,we made an analysis of the characteristics of the stream-media transmission technology. Results The characteristics of low bandwidth occupied,high security,and high scalability of stream-media transmission technology fit the needs of PACS development. Conclusion Application of streammedia technology transferred in PACS image provides a new economical and practical technical solution to break through limitation of network bandwidth in medical imaging integrated information,and to thoroughly make use of medical resource.

The attachments of eustachian tube, levator and tensor veli palati muscles on the base of the skull were measured from the skulls of human adults, infants, newborns ad well as monkeys, dogs and rabbits, respectively. Anatomical characteristics of the levator and tensor veli palati muscles that related to eustachian tubal ventilation and skull morphology were analysed. In addition, some head specimens were dissected for contrast. Levator veli palati muscle (LVPM) lies in the posterioinferior of the eustachian tube. The angles between LVPM and median saggital plane and the angles between LVPM and horizontal plane of palate are larger and their ability of raising the eustachian tube is more effective in the adult than in the newborn and animal. From the eustachian tube to the hamulus, tensor veli palati muscle (TVPM) descends almost vertically in the adult, but ventroward in the newborn and animals, which suggested their different actions upon eustachian tube. The skull morphology of the human adult differs from child and animal, which changes the position and function of LVPM and TVPM. In conclusion, eustachian tube was opened by LVPM chiefly in the adult while by TVPM in the newborn and animal. The incidence of otitis media with effusion is higher in the infant as it is the trasitional stage that the action of TVPM had been decreased while that of LVPM would not have been established.

Aim To investigate the effects of co-administration of L-Arginine (L-Arg) and aspirin (ASA) on platelet aggregation in vitro and gastric damage in vivo. Methods Citrate anti-coagulation venous blood was obtained from rabbits. The blood was centrifuged at 1 100 r?min-1 for 10 min to obtain platelet-rich plasma (PRP). 500 ?l of PRP was poured into a cuvette, and then incubated with various concentrations of L-Arg and a small dose of ASA for 5 min. Platelet aggregation was assayed with Chrono-Log platelet aggregometer by changes in light transmission of platelet suspensions. After co-administration of L-Arg and ASA for 7days to rats, gastric damages were induced by water immersion restraint stress or reserpine. Results Co-administrateion of L-Arg and a small dose of ASA strengthened the inhibitory effects on platelet aggregation. Platelet aggregation rate was 6.6% using 3 mmol?L-1 of L-Arg and small dose of ASA. Platelet aggregation rate was 93.9% using the same concentration of L-Arg alone. 1 g?kg-1 of L-Arg and 0.1 g?kg-1ofASA co-administration for 7 days,significantly reduced gastric damage induced by water immersion restraint stress on Wistar rat. Similar results were observed on other animal experiments with gastric lesions induced by reserpine. The effects of L-Arg on prevention of gastric lesion were almost same as that of famotidine. Conclusion Co-administration of L-Arg and ASA can enhance the inhibitory effects on platelet aggregation and prevent gastric damage.

Aim To improve the sensitivity of phycobiliprotein immunofluorescence assay(PBPIFA), by introducing into bridged avidin biotin(BRAB) technique,known as BRAB-PBPIFA. Methods Using ELISA as a gold standard, effectiveness of three assays(direct PBPIFA, BRAB-PBPIFA and ELISA)were compared in simultaneous detection of standard antigen and 500 serum samples. Results BRAB improved greatly sensitivity of PBPIFA in detecting antigen of low concentration, and detection rate of weakly positive samples could increase by one times and a half. In the applying, protein-free blocking agent Tween 20 to BRAB-PBPIFA,possessed better blocking effect. Conclusion Combination of BRAB technique with PBPIFA can improve the detcctive sensitivity.