With the wide development of intra-arterial thrombolysis,the risk factors and the occurrence mechanism of hemorrhagic transformation have drawn great attention.Hemorrhagic tramformation is the most dangerous complication of intra-arterial thrombolysis.The understanding of the occurrence mechanism of hemorrhagic transformation from macroscopic tO microscopic,it is attributed ultimately to the destruction of vascular wall structure or function.The related mechanisms include oxidative stress reaction,leukocyte infiltration and inflammatory reaction,vascular reaction,and extracellular proteolysis.

Objective: To optimize the hospital medical examination process, reduce the patient waiting time. Methods: Established a centralized examination appointment center at outpatient department. Development and implementation of medical examination appointment platform, integrated with the hospital HIS system, PACS systems and queue system. Results:Achieved the function of“one-stop booking, network distribution, multi-point examination”for all patients, a better solution to the disorder problem of medication examination. Conclusion:The implementation of the medication examination platform has played a positive role. Facilitate patient visits, rational use of equipment, improve work efficiency and improve the treatment environment.

Objective To evaluate the effect of propofol infusion on hepatic blood flow (HBF) and oxygen delivery and consumption in rabbit. Methods Thirty adult male rabbits weighing 1.6-2.4 kg were randomly allocated into 3 groups: group I high dose propofol (HP) ( n = 11); group II low dose propofol (LP) (n = 10) and group III control group (C) ( n = 9). The rabbits were anesthetized with intravenous 3 % pentobarbital 45 mg ?kg-1 and mechanically ventilated (VT = 10 ml?kg-1 RR = 40 bpm, I:E= 1:2) after tracheal intubation. ECG, urinary output and rectal temperature were continuously monitored. Portal vein and hepatic artery were dissected and exposed for measurement of blood flow using electromagnetic flowmeter. Catheters were inserted into carotid artery, portal vein and hepatic vein via the mesenteric vein and right femoral vein for collection of blood samples. After the circulation was stabilized for 30 min, propofol infusion was started at a rate of 1.2 mg ? kg-1 ? min-1 ( HP) or 0.4 mg?kg-1 ?min-1(LP). In control group normal saline was infused instead of propofol. Portal venous and hepatic arterial blood flow were continuously measured. Blood samples were obtained from carotid artery, portal vein and hepatic vein before ( baseline) and at 30, 50, 70 and 90 min of propofol infusion for determination of Hb, SO2, PO2 and PCO2. The hepatic O2 delivery (DO2 ) and consumption (VO2 ) were calculated. Results The three groups were comparable with respect to body weight, duration of operation, the volume of fluid infused and blood loss and urinary output. HBF was significantly higher at 30-90 min of propofol infusion in HP group than in C group, meanwhile DO2 and VO2 in HP group were significantly higher during propofol infusion than the baseline value before infusion and those in C group. However, there was no significant difference in DO2/VO2 ratio between HP and C group. Conclusion High dose propofol infusion improves liver blood flow and O2 delivery but it also increases hepatic O2 consumption. However the balance between hepatic O2 supply/demand remains unchanged.

Objective To explore the diagnostic value of HR -HPV combined with TCT in the diagnosis of cervical cancer and precancerous lesion.Methods 1 198 cervical specimens were selected for the study.The results of HR -HPV detection and TCT detection were analyzed,with the pathological results as the gold standard,the diag-nostic value of HR -HPV and TCT in the diagnosis of cervical cancer and precancerous lesion were discussed. Results With increasing pathological grade,TCT positive rate increased gradually,there was a correlation between them(r =0.629,P <0.05).With increasing pathological grade,HR -HPV positive rate increased gradually,there was a correlation between them(r =0.684,P <0.05).The sensitivity of HR -HPV combined with TCT in the differ-ential diagnosis of cervical cancer,precancerous lesions was 100.00%,specificity was 79.64%,missed diagnosis rate was 0.00%,the misdiagnosis rate was 20.36%.Conclusion HR -HPV combined with TCT examination has high clinical value in the diagnosis of cervical cancer and precancerous lesions.

Objective To investigate the efficacy and safety of carvedilol in patients with chronic heart failure (CHF).Methods Forty-six patients with CHF were randomly divided into carvedilol group (n=26) and control group (n=20) on the basis of standard therapy including digitalis, diuretics and ACEI. Before and after treatment, NYHA class, echocardiography and adverse reaction were observed. Results The mean dose of carvedilol was titrated to 25.14?3.05mg/day. After treatment, NYHA class was improved in both groups. Left ventricular end-diastolic diameter (LVEDD) measured by echocardiography reduced [(58.79?8.99)mm vs (64.68?10.12) mm,P

Objective To overcome the disadvantages of the traditional auscultating method and design the electro-auscultating visual system integrating the monitoring and recording functions.Methods The portable system consisted of the module pre-gathering and electro-auscultating heart-sound signal,the circuit of A/D converting and MCU,as well as the device of signal LCD-displaying in real-time and the USB mass storage device.Results Portable electro-auscultating system was realized,which integrated the functions of watching,monitoring and recording.Conclusion The portable system is more convenient for clinical doctors to get correct information from patients,benefiting to the clinical pathology-statistics and profound development of the related data.

OBJECTIVE To explore the distribution of 16S rRNA methylase and aminoglycoside modifying enzymes in continuous isolates of Pseudomonas aeruginosa(PAE).METHODS The antibiotics susceptibility was tested by K-B method,the 16S rRNA methylase(rmtB) and aminoglycoside modifying enzymes were detected by polymerase chain reaction(PCR),the positive genes were amplified and sequenced by PCR fluorescence spectrophotometry.RESULTS Among 20 strains of PAE,the 16S rRNA methylase and 5 kinds of aminoglycoside modifying enzymes had been detected.The 5 kinds of aminoglycoside modifying enzymes were aac(3)-Ⅱ,aac(6′)-Ⅰb,aac(6′)-Ⅱ,ant(3″)-Ⅰ and ant(2″)-Ⅰ,respectively.And more,the rmtB in the first and third strains was sequenced,and translated into amino acid,and the translated amino acid sequence was compared with GenBank,suggesting there be different amino acid sequence.This was confirmed as two new subtypes.CONCLUSIONS Resistant to antibiotics PAE in our hospital is mainly related to 16S rRNA methylase and 5 aminoglycoside modifying enzymes,and 2 new subtypes of 16S rRNA methylase are discovered.

OBJECTIVE To explore the distribution of ?-lactamase and drug resistant gene mediated by transposon and integron in continuous isolates of Pseudomonas aeruginosa.METHODS The antibiotics susceptibility was tested by K-B method;the ?-lactamase and the outer membrane protein gene oprD2 were detected by polymerase chain reaction(PCR);the genotype of merA encoding Tn21/Tn501 type trandsposon and qacE?1-suI1 encoding Ⅰ type integron was detected by PCR and the positive genes were amplified and sequenced by PCR fluorescence spectrophotometry.RESULTS The TEM type,OXA-2,OXA-10 and CARB of ?-lactamase genes had been detected in 20 strains of P.aeruginosa,but plasmid-mediated ampC enzyme and metallo-?-lactamase had not been detected,the gene oprD2 encoding porins was not detected.The gene merA was detected in 7 strains(35.0%),and the qacE?-sul1 had been detected in 10 strains(50.0%).The gene OXA-2 in the isolate No.2 was sequenced,and translated into amino acid,and the translated amino acid sequence was compared with GenBank,the results indicated that amino acid sequence of OXA in the isolate No.2 was simlar to that in GenBank,exsited 2 different amino acid sequences,so was confirmed as a new subtype.CONCLUSIONS Resistance to ?-lactamase compounds in P.aeruginosa of our hospital is related to TEM,OXA and CARB genes,and integron and transposon contribute to the drug resistance and multidrug resistance in P.aeruginosa.

OBJECTIVE To explore the distribution of related resistance genes of chloramphenicol and tetracycline in Pseudomonas aeruqinosa isolates.METHODS The antibiotics susceptibility was tested by K-B method,catB cmlA,tetA tetB and smr-2 were detected by polymerase chain reaction(PCR),the gene cmlA was sequenced by PCR fluorescence spectrophotometry.RESULTS The drug-resistant rates of 20 strains of P.aeruginosa against 17 kinds of antibiotics ranged from 10.0% to 100.0%,and multidrug resistant strains were found.The gene of cmlA had been detected in 6 strains of 15 resistant P.aeruginosa isolates,but the genes of tetA,tetB and smr had not been detected.The cml was sequenced,and compared with GenBank,the result showed the gene fragment shared 99.0% homology in nucleotides with the GenBank sequences of cmlA7 and cmlA8.CONCLUSIONS Resistance to antibiotics in P.aeruginosa of our hospital is mainly related to cmlA.The resistance to chloramphenicol and tetracycline was not related to tetA,tetB and smr-2.

Objective To evaluate the corneal wound quality of different corneal lamellar-cut depths with the femtosecond laser for fem-tosecond laser-assisted lamellar anterior keratoplasty so as to provide theoretical basis for the appliation of femtosecond laser.Methods Full lamellar cuts were made on 20 human cadaver corneas through femtosecond laser.The 20 human cadaver corneas were divided into 5 groups according to the relative cutting depth which means ratio of the actual cutting depth and the central cornea thickness of 17% to 21%(100 μm,n =3),31% (n =5),35% (n =5),38% to 40% (n =4),and 45% to 48% (n =3).Scanning electron microscopy images of the cap and bed surfaces were graded for ridge and roughness with a scale of 1 to 5 point (1 =best,5 =worst).And the graft-host match was evaluated by photography and optical coherence tomography in a simulated procedure.Results The ridge scores was correlated with the rela-tive cutting depth (P =0.000 24,R =0.73).The 17% to 21% group had the shallowest cutting depth and the fewest ridges (1.25 point). The score of the 31% group was 2.15 point which was significantly lower than the other groups with deeper cutting depth.The roughness score ranged from 2.19 to 3.08 among the 5 group without singnificant difference (P >0.05).Conclusion The femtosecond laser produced more ridges in deeper lamellar cuts and the relative cutting depth of 31% might produce an adequate surface quality for femtosecondlaser-as-sisted lamellar anterior keratoplasty.