Objective: To observe the safety and efifcacy of excimer laser coronary atherectomy (ELCA) for treating the patients with coronary chronic total occlusion (CTO). Methods: A total of 3 coronary CTO patients treated by ELCA in our hospital from 2015-01 to 2016-11 were analyzed. The patients received guide steel wire gone through occlusion segment under the guidance of offside coronary angiography; drug-eluting stent implantation was conducted after ELCA treatment. The operative success rate with complication was observed and the occurrence of MACE was followed-up. Results: The device performing and interventional therapy were succeed in all 3 patients. No coronary dissection, perforation, slow relfow and thrombosis were occurred during the operation; no angina, myocardial infarction, target vessel revascularization and death were observed by follow-up study. Conclusion: Application of ELCA combining drug-eluting stent implantation was safe and effective for treating the patients with coronary CTO.

Objective To study the chemical constituents in the leaves of Mallotus apelta. Methods Constituents isolation and purification were carried out on silica gel and polyamide column. Their structures were identified by physicochemical properties and spectral analysis. Results Five compounds were isolated and elucidated as taraxerol (Ⅰ), ?-sitosterol (Ⅱ), 5, 7-dihydroxy-6-prenyl-4′-methoxy-flavanone (Ⅲ), apigenin (Ⅳ), and apigenin-7-O[WTBZ]-?-D-glucoside (Ⅴ). Conclusion Compound Ⅲ is a new compound named as mallotusin. Compounds Ⅰ and Ⅲ-Ⅴ are isolated from the leaves of M. apelta for the first time.

Objective To determine whether left ventricular Tei Index evaluate the cardiac function and prognosis of patients with sepsis-induced cardiomyopathy (SIC).Methods A total of 86 patients with septic shock combined with SIC in the emergency department of Beijing Chaoyang Hospital affiliated to Capital Medical University from July 2014 to June 2016 were recruited and divided into non-survival group (n=35) and survival group (n=51) according to 28-day follow-up.Left ventricular Tei Index, BNP, cTNI and left ventricular ejection fraction within the first 24 h after admisson were detected and compared between the two groups.The correlations of left ventricular Tei Index to BNP, cTNI and ejection fraction were analyzed.The receiver operating characteristic curves (ROC) were constructed to analysize the value of Tei Index in evaluating the cardiac function and prognosis.Results The patientsin the non-survival group had a higher Tei Index compared with that in the survival group [(0.75±0.13) vs.(0.51±0.09), P<0.05].The Tei Index of SIC patients was significantly positively correlated with BNP and cTNI (both P<0.05), and significantly negatively correlated with ejection fraction (P<0.05).The AUC of Tei Index for predicting 28-day mortality in SIC patients was high comapred with that of BNP, cTNI and ejection fraction.Conclusion The left ventricular Tei Index has a reliable value in evaluating the cardiac function and prognosis of patients with SIC.

Objective To realize the simultaneous control of two laboratory instruments by a computer. Methods On the basis of analysing the mode of communication between computer and laboratory instrument, the author expanded the computer's COM interface through the USB / COM converter. Results The author realized a computer controlling MP280 CLIA chemiluminescence analyzer and anthos 2010 enzyme tester at the same time. Conclusion User can use computer's USB interface and USB / COM converter to achieve controlling multiple instruments and equipments at the same time, as long as the communication interface of equipment is open. This method has preferable potential application.

Objective:To evaluate the efficacy and adverse reaction caused by Capecitabine compared with S-1 as maintenance treat-ments for patients with advanced gastric cancer (AGC) after first-line induction chemotherapy. Methods:A total of 130 AGC patients who did not suffer disease progression after first-line chemotherapies, including XELOX (four to six cycles), SOX (four to six cycles), and mFOLFOX6 regimen (six to eight cycles), were randomized into three groups. The Capecitabine group (Cap) received maintenance che-motherapy with Capecitabine (1 000 mg/m2 twice daily for 14 days, 21 days/cycle), while the S-1 group (S1) received S-1 (40, 50, or 60 mg according to the body surface area and orally administered twice a day for 14 days, 21 days/cycle). The control group was consid-ered as the observation group. Patients with maintenance treatments received drugs until disease progression or observation of intol-erant toxicity. Results:A total of 44, 33, and 53 patients received XELOX, SOX, and mFOLFOX6 regimens, respectively. The overall DCR was 63.1%. Among the 82 patients, 35, 28, and 19 belonged to the Cap, S1, and observation groups, respectively. The comparison be-tween the efficacy of treatments in the Cap and S1 groups did not show statistically significant differences (P=0.678). The median time of progression was 8.5 months in the Cap group and 9.0 months in the S1 group (P>0.05). Both groups showed better responses than the observation group, which demonstrated a median progression of 6.0 months (P<0.001). The median overall survivals were 14.5, 15.0, and 14.0 months in the Cap, S-1, and observation groups, respectively (P=0.188). The most common adverse effects observed among the patients with maintenance treatments included myelo-suppression, gastrointestinal reaction, fatigue, hand-foot syndrome, and stomatitis. No death occurred in relation to the therapy. Conclusion:The effectiveness of Capecitabine and S-1 as maintenance chemotherapies in AGC patients after the first-line induction chemotherapy are similar, and both can prolong the time of disease pro-gression with low toxicity.

60 kg) was given to all the patients 1-3 days after their operation.The pacing threshold and the amplitude of P and R waves on cardiograph were measured before injection and at 10,30,90,180 minutes afterwards.Results No significant changes were oburved in pacing threshold and the amplitade of P and R waves before and after the injection of metoprolol in patients with either newly implanted or replacement of permanent pacemakers.Conclusion Metoprolol tartrate has no effect on atrial and ventricular pacing threshold and the amplitude of P and R waves in patients with permanent pacemakers implantation.

Objective To investigate the effect of Arsenic Trioxide(As_2O_3) combined with radiation on the apoptosis of nasopharyngeal carcinoma cells in vitro.Methods Using MTT and FCM to detect the cytotoxic and apoptosis at different As_2O_3 concentrations combined with 2Gy radiation on nasopharyngeal carcinoma cells(CNE1).Results Inhibition of cell proliferation seemed more dependent on the increase of As_2O_3 concentration.Cell survival rate was lower in the combination of As_2O_3 and radiation group than As_2O_3 alone.Conclusion As_2O_3 can enhance radiation effect obviously in nasopharyngeal carcinoma cells,especially at lower radiation dose.

OBJECTIVETo investigate the application of microsurgical technique in the replantation of amputated ear.

METHODS7 cases of amputated ears were analyzed from June 2009 to April 2015 in our department. We used microsurgical technique to anastomose about five vessels and nerves. The blood supply of auricle was restored within three to six hours. All subjects underwent treatments including anti-freezing, anti-spasm and anti-infection treatment after the emergency surgery.

RESULTS7 amputated ears were all survived after replantation. The patients were followed up for one month to six months ( average for 28 months). The appearances of survived ears body were fully recovered without any significant atrophy or pigmentation. The sensory function of ears recovered to normal after 1 year.

CONCLUSIONSThe application of microsurgical technique in the replantation of amputated ear can expect the high success rate of ear replantation. However, skilled and high-quality anastomosis technique of small vascular are required.

Amputation, Traumatic ; surgery ; Anastomosis, Surgical ; methods ; Ear Deformities, Acquired ; surgery ; Ear, External ; blood supply ; innervation ; Graft Survival ; Humans ; Microsurgery ; methods ; Replantation ; methods

Objective To establish a qualitative and quantitative determination of glyphosate in serum using ultraviolet spectro-photometry(UV) to provide basis for clinical diagnosing and treating glyphosate poisoning .Methods The mixture of 0 .5 mL serum and 0 .2 mL 10% methanol solution of perchloric acid was shocked and centrifuged with 10 000 r/min for 5 min .A nitrosyla-tion reaction conducted on supernatant and 50 μL serum nitrosylation liquid was detected by UV scanning .Results The results of serum theophylline absorption maxima was(243 ± l) nm and the concentration of 10 .0-60 .0 μg/mL range linear regression equa-tion was Y=0 .0173 8X+0 .036 3(r= 0 .999 8) .The recovery rate was from 85 .5% to 102 .4% and the relative standard deviation (RSD) was from 3 .50% to 4 .90% .The intra-day and inter-day RSD were 3 .79% -5 .10% and 3 .88% -4 .55% .The minimum de-tectable concentration was 5μg/mL .Conclusion This method is simple ,rapid and accurate results for detecting glyphosate poison-ing .

Objective A rat model of chronic post-thoracotomy pain is used to study whether acute pain and pre-operative diffused noxious inhibitory controls(DNIC) can predict chronic pain and how DNIC changes when pain maintains.Methods Rats were randomly divided into three groups:naive group,sham group and model group.DNIC was constantly assessed in individual rats,along with each animal's mechanical hyperalgesia and cold allodynia after thoracotomy.Results In model group,the incidence of chronic post-thoracotomy pain was 55%(11 of 20),which was named CPTP group,and the other 9 rats without chronic pain was defined as non-CPTP group.The pre-operative DNIC was significantly weaker in CPTP group with lower mechanical threshold on 6 days after surgery and higher cold sensitivity on 6 days after surgery comparing with non-CPTP group.In the acute pain phase (day 3),DNIC was decreased in both CPTP group and non-CPTP group as compared with pre-operative period.Besides,DNIC was recovered in non-CPTP group while kept impaired in CPTP group on 21 days after surgery.Conclusions Pre-operatively assessed DNIC efficiency and acute post-operative pain intensity were two independent predictors for CPTP.DNIC was decreased both in acute pain and chronic state,while returned to normal when pain sense was normal.