Objective: To explore auxiliary diagnostic value of fragmented QRS complex on ECG for acute myocardial infarction (AMI).Methods: Clinical data of 102 AMI patients (AMI group) and 132 CHD patients (CHD) group, who were treated in our hospital from Apr 2013 to Apr 2014, were retrospectively studied, another 120 healthy subjects undergoing physical examination in our hospital during the same period were regarded as normal control group.AMI was diagnosed by myocardial perfusion tomography, all subjects received ECG examination, and incidence rates of fragmented QRS complex and pathological Q wave at different sites were recorded.Sensitivity, specificity and accuracy of fragmented QRS complex and pathological Q wave diagnosing AMI were compared.Results: Incidence rate of fragmented QRS complex was highest on inferior wall in AMI group, and that of pathological Q wave was highest on anterior wall in AMI group.Except fragmented QRS complex in sidewall, compared with normal control group, there were significant rise in incidence rates of fragmented QRS complex on anterior wall (0.8% vs.22.5%, 13.6%) and inferior wall (6.7% vs.26.5%, 17.4%);pathological Q wave on anterior wall (0 vs.41.2%, 29.5%), inferior wall (0.8% vs.40.2%, 35.6%) and side wall (0 vs.2%, 2.3%) in AMI group and CHD group, P<0.01 all.Compared with pathological Q wave, there was significant rise in diagnosing sensitivity for AMI (40.00% vs.89.47%), for CHD (41.94% vs.91.50%) of fragmented QRS complex (P<0.01 both), but there were no significant difference in specificity and accuracy between them (P>0.05 all).Conclusion: Fragmented QRS complex can be used as an important auxiliary index diagnosing acute myocardial infarction.When combined with pathological Q wave, it can further improve diagnostic value of ECG for acute myocardial infarction.

Mycoplasma pneumoniae is a common pathogen of respiratory infection. Macrolides antibiotic is the first drug in treating children mycoplasma pneumoniae. Restently Mycoplasma pneumoniae shows resistance to macrolides antibiotic. Traditional Chinese medicine has more advantages in it. The paper summarizes drug resistance of mycoplasma pneumoniae and mechanisms research of traditional Chinese medicine.

Because TCM transdermal medicine delivery preparations are hot spots in domestic researches, the rational application of penetration enhancers in prescriptions and the evaluation methods become increasingly important. This article reviewed the recent application of natural penetration enhancers and synthetic penetration enhancers in the prescription design of TCM transdermal medicine delivery preparations, and analyzed the existing problems and development prospects.

BACKGROUND:Some studies have showed that the accuracy and surgery outcome of the percutaneous pedicle screw implantation was superior to open surgery, but the relationship between the angle of pedicle screws and screw stability is stil unclear in previous studies. OBJECTIVE:To investigate the effect of different angles of implanted screws on the stability of pedicle screw. METHODS:A total of 30 vertebral specimens of adult pigs were selected and screws were implanted respectively according to different coronal and sagittal angles. The maximum pul-out strength of screws from each specimen was tested by machine. Load-displacement curves were drew and statistical y analyzed. RESULTS AND CONCLUSION:The maximum pul-out strength and maximum energy of screw with 10° and 15° coronal and sagittal angles implantation were significantly better than those of 0° angle group (P<0.05). When the stress exceeded the maximum pul-out strength, the pul-out strength of screw decreased gradual y. The curves in coronal and sagittal 10° and 15° angle groups was similar, and the slope was better than 0° angle group (P<0.05). These results confirm that the angle of the implanted screw provides effective assistance to the stability of percutaneous pedicle screw. After the looseness of the screws, the pul out strength shows a steady downward trend.

The results of RT-PCR and immunohistochemistry showed that the expressions of vascular endothelial growth factor (VEGF) and its receptor ( flk-1 ) in the renal cortex of insulin-resistant rats during the phase of normal blood glucose were significantly increased, which were decreased by telmisartan. The result suggests that telmisartan may ease kidney damage via decreasing VEGF and flk-1 expressions.

Objective To understand the awareness of early symptoms of stroke patients in Gansu. Methods 1100 stroke patients in neurology and neurosurgery departments in 10 hospitals of different levels in Gansu in 2010 were surveyed by questionnaire. Results The awareness rate of early symptoms of stroke was generally low in all age groups. Conclusion Stroke patients were lack of awareness of early symptoms in Gansu, we should step up publicity efforts to enable more patients to receive early treatment and reduce morbidity and mortality.

Objective To investigate the awareness of knowledge about stroke rehabilitation in medical professionals in Gansu. Methods 520 professionals of neurology, neurosurgery, and others from 10 hospitals of different level were investigated with questionnaire. Results The awareness of the knowledge about stroke rehabilitation was different with the gender (χ2=17.50), education levels (χ2=66.35), professional levels (χ2=16.81), specialities (χ2=124.39) and duties (χ2=29.99) of the professionals (P<0.05). Conclusion It is necessary to improve the education of rehabilitation in hospitals.

Objective To investigate the knowledge about risk factors for stroke in stroke patients. Methods 1043 stroke patients in 10 hospitals were investigated with self-designed questionnaire. Results The rate of awareness of risk factors for stroke was: hypertension 61.55%, hyperlipidemia 40.27%, drinking 32.21%, smoking 30.11%, diabetes mellitus 28.67%, heart disease 23.11%. 6.42% knew all the 6 risk factors, and 20.13% did not know any risk factor. The rate of awareness of diabetes mellitus was different among various aged groups (P<0.01), and the rate of awareness of hypertension, hyperlipidemia, and diabetes mellitus increased with the years of education. Conclusion The stroke patients know less about the common risk factors for stroke, who need more health education.

Objective To investigate the knowledge of stroke risk factors in the families of patients with stroke. Methods 1100 family members of stroke patients hospitalized in 10 hospitals of various levels in Gansu were investigated with self-designed questionnaire. Results Most families knew that the hypertension was a risk factor for stroke, and there was no significant difference among ages. 7.32% of the families knew all the 6 common risk factors for stroke, and 14.23% knew none of them. Hypertension, hyperlipidemia, diabetes as the risk factors for stroke was known most in the families finished higher education, and different with the education levels. Heart disease, smoking, consumption of alcohol as risk factors for stroke was known poorly whatever the careers of the families. Conclusion The families of patients with stroke know less about common risk factors for stroke in Gansu.

Objective To investigate the awareness of the negative emotions on the physical rehabilitation and psychological treatment of family members of stroke patients in Gansu. Methods 1100 stroke patients from 10 hospitals of different levels in Gansu were surveyed. Results Family members who thought negative emotions can affect the recovery of limb function accounted for 77.17%, and who thought psychological treatment was needed accounted for 83.46%. Conclusion Family members of stroke patients think that negative emotions affect the recovery of limb function and psychological treatment is needed.