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Objective: To study the value of speckle tracking echocardiography (STE) for assessing left ventricular remodeling (LVR) in patients of acute ST-elevation myocardial infarction (STEMI) with late percutaneous coronary intervention (PCI). Methods: A total of 127 STEMI patients with elective PCI were enrolled. Echocardiography was conducted within 48 hours of admission and the patients were followed-up for 6-9 (median 7.8) months after discharge. LVR was deifned by left ventricular end-systolic volume (LVESV) elevation >15% than the ifrst echocardiography. The patients were divided into 2 groups: LVR group,n=41 and Non-LVR group,n=84. Results: There were significant differences between 2 groups in left ventricular global longitudinal strain (GLS), longitudinal Ts-SD, radial strain (RS) and longitudinal postsystolic index. Further Logistic regression analysis indicated that GLS (OR=0.39, 95% CI 0.26-0.57,P<0.01) and RS (OR=1.07, 95% CI 1.02-1.13,P=0.01) were the independent predictors for LVR occurrence; ROC presented that the optimal cut-off value for GLS was -10.85% (sensitivity 89.7%, specificity 91.7%) and for RS was 28.46% (sensitivity 82.1%, speciifcity 66.7%). Conclusion: STE measured GLS and RS were the independent predictors for LVR occurrence in STEMI patients with late PCI.
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Objective: To evaluate left atrial (LA) function and synchrony in lone atrial fibrillation (LAF) patients by two-dimensional speckle tracking echocardiography (2D-STE) and to explore the predictive value of 2D-STE parameters for AF recurrence after ablation procedure. Methods: Our research included in 2 groups: LAF group,n=50 patients diagnosed in our hospital from 2013-06 to 2015-05; it was further divided into 2 subgroups as Non-LA enlargement subgroup,n=34 and LA enlargement subgroup,n=16 and Control group,n=35 healthy subjects. With sinus rhythm, 2D-STE was conducted to obtain LA peak ventricular systolic longitudinal strain (PALS), strain rate (SRs) and atrial contraction longitudinal strain (ACLS), strain rate (SRa). Standard deviation for the time to peak (TPSD) of regional strain was calculated. TPSD during ventricular systole was named as SDs and TPSD during ventriculardiastole was named asSDa. Results: Compared with Control group, LAF group had reduced PALS (28.34±8.57) vs (38.73±6.13), SRs (1.17±0.31) vs (1.57±0.25), ACLS (14.11±4.91) vs (18.86±3.57 ) and SRa (-1.41±0.58) vs (-1.90±0.30), allP<0.05; while elevated SDs (8.11±3.00) % vs (4.67±1.48) % and SDa (5.57±2.26) % vs (3.11±1.13) %, bothP<0.05. Furthermore, Compared with Control group, Non-LA enlargement subgroup had decreased PALS, SRs, ACLS and SRa, allP<0.05; while increased SDs and SDa, bothP<0.05. Logistic regression analysis indicated that compared with traditional parameters, SDs and SDa could more effectively distinguish LAF patients from normal subjects (SDs with the sensitivity 83%, speciifcity 72% and SDa with the sensitivity 81%, speciifcity 76%). Elevated SDa and SDs were the best predictors for post-operative AF recurrence (SDs with the sensitivity 80%, speciifcity 71% and SDa with the sensitivity 86%, speciifcity 79%). Conclusion: 2D-STE may detect LA dysfunction and dyssynchrony in LAF patients, abnormal parameters could be found in LAF patients without LA enlargement. SDs and SDa were the best predictors for post-operative AF recurrence.
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Objective:To investigate the effects of moxibustion on the serum metabolism in healthy human body based on the 1H nuclear magnetic resonance (1H NMR) metabolomics technology, and to find the differences in metabolites, as well as to elucidate the effects of moxibustion on healthy human body from the viewpoint of global metabolism. Methods:Sixty subjects of healthy young men from the enrolled students were randomly divided into a moxibustion group and a control group using random number table, with 30 cases in each group. Subjects in the moxibustion group accepted mild moxibustion on the right Zusanli (ST 36), once a day, 15 min for each time, and continuous treatment for 10 d; those in the control group did not receive any intervention. There were 28 cases in the moxibustion group and 23 cases in the control group after interventions. On the 1st day, 5th day and 10th day of the intervention, serum samples were collected from subjects of the two groups, and metabolic spectra were obtained by the1H NMR technology. Results: Before and after the intervention, serum1H NMR of the moxibustion group was significantly different, while the difference was insignificant in the control group. Metabolite changes in the moxibustion group were mainly in low density lipoprotein (LDL)/very low density lipoprotein (VLDL), valine, isoleucine, leucine, lactic acid, glutamine, citric acid, polyunsaturated fatty acids, creatine, glycine, glycerol, glucose, tyrosine, histidine, formic acid, alanine, lysine, acetic acid, and glutamic acid. Conclusion:Moxibustion can cause changes of serum metabolic patterns in healthy human by influencing the concentrations of branched-chain amino acids, polyunsaturated fatty acids, and other metabolites to strengthen body's metabolisms of amino acids and fatty acid.
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Objective To investigate the changes of serum levels of sex hormone binding globulin (SHBG),free testosterone index (FTI) and insulin resistance; and to investigate the relationship among them and prevalence of gestational diabetes mellitus (GDM) and hypertensive disorder complicating pregnancy (HDP) in polycystic ovarian syndrome (PCOS) women during pregnancy. Methods Serum samples of 32 PCOS women and 32 non-PCOS women were collected during their gestational age from 12 to16 weeks.Serum levels of total testosterone,SHBG and insulin were detected.Free testosterone index (FTI) and homeostasis model assessment for insulin resistance (HOMA-IR) were calculated.Risk factors of GDM and HDP were analyzed by stepwise logistic regression.Data of two groups were compared with t test or Chi square test. Results Serum fasting insulin [(8.0±1.5) mU/L vs (7.1±1.5) mU/L,t=2.32,P＜0.05],FTI [0.96 (0.52-1.41) vs 0.61 (0.40-0.79),t=3.02,P＜0.05],HOMA-IR levels [1.53±0.32 vs 1.36±0.36,t=2.04,P＜0.05] and total testosterone [2.95 (1.61-4.40) nmol/L vs 2.15 (1.50-2.80) nmol/L,t=2.55,P＜0.05] were higher in PCOS group than in control group; and SHBG level [325 (312-355) nmol/L vs 360 (347-373) nmol/L,t=4.13,P＜0.05] was lower in PCOS group than in control group.Cesarean section rate (84％ vs 50％,x2 =8.58,P＜0.01) and HDP incidence (25％ vs 3％,x2=4.65,P＜0.05) were higher in PCOS group than in control group. SHBG level [(293 ±42) nmol/L] of PCOS women who complicated with GDM (n=6) was significantly lower than that [(333±40) nmol/L] of those who did not (n=26),t=2.22,P＜0.05.Serum total testosterone [(4.34±1.29)vs (2.49±1.44) nmol/L,t=3.23,P＜0.05] and FTI [1.42±0.52 vs 0.81±0.59,t=2.61,P＜0.05] were significantly higher in PCOS women complicated with HDP (n=8) than those of the PCOS women who did not (n=24).Stepwise logistic regression analysis showed that SHBG was the risk factor of GDM (OR=0.98,95％CI:0.96～1.00,P＜0.05); FTI was the risk factor of HDP in PCOS women (OR=5.53,95％CI:1.20～25.61,P＜0.05). Conclusions FTI and SHBG levels could be predictors for GDM and HDP in PCOS women during their pregnancies.
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OBJECTIVE To explore uticozation of nursing care in the operating room disinfection and isolation management. METHODS The nurses and doctors operating room were selected as the observers. Obsening in the operating room for 30-60 min, and recorded the results. After the guidance of the staff discussed to address the problem. RESULTS From June 2006 to June 2008, observed in disinfection and isolation problems of operating room management. The measures include 45 long-term plan, measures need to improve the implementation. To continue to reduce the existing problems, the increasing outstanding operation; Operating room working environment, surgical sterilization materials, sterile technique quality control inspection pass rate in 2006 from the third quarter of 94.2%, 97.1%, 95.1% to 2008 second quarter of 100.0%, 100.0%, 99.8%. CONCLUSIONS The meause can improve the initiative to participate in the management increase the communication between the department and surgery, disinfection and isolation technology improve the quality of management effectiveness. Disinfection and isolation of the operating room are needed to ensure the effectiveness of management to prevent nosocomial infection.