RESUMEN
Objective:To investigate the application effects of a one-time filling root canal in root canal therapy in plateau areas and evaluate its feasibility in oral clinic in plateau areas.Methods:Sixty-eight patients who received root canal therapy for anterior teeth and premolars (75 teeth) from August to December 2018 in Shannan People's Hospital were included in this study. They were divided into control group ( n = 33; 36 teeth) and observation group ( n = 35; 39 teeth) according to odd and even numbers of admission date. Patients in the control group received conventional root canal therapy and those in the observation group underwent one-time root canal filling therapy. Efficacy was compared between the two groups. Results:After 1 week, 2 weeks and 1 month of treatment, the success rate in the control group was 88.9%, 94.4%, 100.0%, respectively, and it was 87.2%, 94.9% and 100.0%, respectively in the observation group. There was no significant difference in success rate between the two groups at three time points studied (all P > 0.05). Conclusion:One-time filling root canal therapy can achieve ideal therapeutic effects under strict control of surgical indications. This method is worthy of clinical promotion especially in plateau areas.
RESUMEN
Objective To compare the effect of carvedilol and motoprolol on high altitude chronic congestive heart failure (CHF). Methods Ninety patients with high altitude chronic CHF were divided into three groups randomly:Twenty patients in the regular treatment group treated with angiotensin-converting enzyme inhibitor (ACEI) ,diuretics and digoxin; motoprolol (50 mg twice daily) was given in the motoprolol group( 34cases) additional to regular treatment; carvedilol (25 mg twice daily) was given in the carvedilol group(36cases ) additional to regular treatment. All the patients were followed up for six months and measured the changes of cardiac function by echocardiography. Results Left ventricular end-diastolic dimension (LVEDD) was ( 57. 3 ± 6. 5 ) mm and (57.2 ± 6. 9) mm in the carvedilol group and the motoprolol group respectively, and left ventricular end-systolic dimension (LVESD) was (46. 6 ± 7.0) mm and (44. 0 ± 6. 9 ) mm in the carvedilol group and the motoprolol group respectively, which were all significantly smaller than that in the regular treatment group ([64.7 ±9. 1]mm and [53.4 ±9.8]mm for LVEDD and LVESD,respectively) (Ps ＜0.05). Left ventricular ejection fraction (LVEF) in the carvedilol group and the motoprolol group ( [47.5 ± 8. 1] % and [52. 9 ±8.5] % ,respectively) was higher than that in regular treatment group( [42. 8 ±9. 2]% ) (Ps ＜0. 05).The improvement of LVEF in the carvedilol group was better than that in the motoprolol group (P ＜ 0. 05 ). One case died in the motoprolol group and no death in the carvedilol group,4 cases died in the regular treatment group,the mortality in the motoprolol group and the carvedilol group was significantly lower than that in the regular treatment group. Conclusion Carvedilol and motoprolol significantly improved cardiac function in high latitude CHF patients,and the effect of Carvedilol is slightly better than that of motoprolol.