BACKGROUND Contemporary innovations in the area of local anesthesia have attempted to provide an absolutely pain free experience for patients.Since the introduction of Computer-Controlled Local Anesthetic Delivery Sys...BACKGROUND Contemporary innovations in the area of local anesthesia have attempted to provide an absolutely pain free experience for patients.Since the introduction of Computer-Controlled Local Anesthetic Delivery Systems to dentistry,many studies have compared its efficacy and safety to conventional anesthesia.However,very few studies have compared single tooth anesthesia(STA)and traditional local anesthesia.AIM To compare pain rating,changes in blood pressure,and heart rate during the local anesthetic injection.The secondary objectives were to measure the patients’level of satisfaction and the differences in anesthetic efficiency between the STA system and traditional local infiltration.METHODS A randomized controlled trial was conducted and a total of 80 patients with dental restorative needs were enrolled for the study.The patients were evaluated for their general physical status and oral clinical findings before enrollment.Information regarding perceived pain,changes in heart rate and blood pressure,and patients’satisfaction was collected using an electronic data form and was analyzed using paired and unpaired t-tests.RESULTS No significant difference was noted in perceived pain(P=0.59)and systolic blood pressure(P=0.09)during anesthetic injection using both traditional and STA techniques.STA patients had a significantly higher heart rate during anesthesia,although a statistically significant difference was noted among the traditional anesthesia and the STA groups even before anesthesia.During the restorative procedure,less pain was perceived by STA patients on the Wong-Baker FACES pain scale,which was statistically significant(P<0.001).Analyses of post-procedure patient responses showed that STA patients had a significantly better treatment experience and preferred to have the same method of injection in the future(P=0.04).CONCLUSION STA system can provide less painful and more comfortable restorative treatment procedures in comparison to the traditional infiltration technique.展开更多
目的探讨应用单心动周期实时四维超声心动图(single beat real—time four dimensionalechocardiography.sRT-4DE)评价心肌梗死患者左室整体节段舒缩功能及室壁运动同步性,左室收缩缩功能对左心室室壁运动同步性的影响.方法研究对象分为...目的探讨应用单心动周期实时四维超声心动图(single beat real—time four dimensionalechocardiography.sRT-4DE)评价心肌梗死患者左室整体节段舒缩功能及室壁运动同步性,左室收缩缩功能对左心室室壁运动同步性的影响.方法研究对象分为2组:心肌梗死组40例,其中陈旧性前壁心肌梗死15例;正常组30例,均行实时四维超声心动图检查,通过左室分析软件获得整体及节段容积一时间曲线及左室整体及节段收缩功能参数、左室收缩同步性参数.结果心肌梗死组左室收缩未期容积(ESV)、左室舒张末期容积(EDV)显著大于正常组(P<0.01).左室射血分数(LVEF)显著小于正常组(P<0.01);心肌梗死组左室16节段收缩同步性参数显著大于正常组(P<0.01),其中SDI与LVEF的相关系数r=-0.521,P<0.01.与正常组相比,心肌梗死组16个节段的Dispes16、ESSI增大(P<0.05).结论 sRT-4DE能够准确评价心肌梗死患者左室收缩同步性及收缩功能,左室整体及节段收缩减退可影响左室室壁运动的同步性.展开更多
文摘BACKGROUND Contemporary innovations in the area of local anesthesia have attempted to provide an absolutely pain free experience for patients.Since the introduction of Computer-Controlled Local Anesthetic Delivery Systems to dentistry,many studies have compared its efficacy and safety to conventional anesthesia.However,very few studies have compared single tooth anesthesia(STA)and traditional local anesthesia.AIM To compare pain rating,changes in blood pressure,and heart rate during the local anesthetic injection.The secondary objectives were to measure the patients’level of satisfaction and the differences in anesthetic efficiency between the STA system and traditional local infiltration.METHODS A randomized controlled trial was conducted and a total of 80 patients with dental restorative needs were enrolled for the study.The patients were evaluated for their general physical status and oral clinical findings before enrollment.Information regarding perceived pain,changes in heart rate and blood pressure,and patients’satisfaction was collected using an electronic data form and was analyzed using paired and unpaired t-tests.RESULTS No significant difference was noted in perceived pain(P=0.59)and systolic blood pressure(P=0.09)during anesthetic injection using both traditional and STA techniques.STA patients had a significantly higher heart rate during anesthesia,although a statistically significant difference was noted among the traditional anesthesia and the STA groups even before anesthesia.During the restorative procedure,less pain was perceived by STA patients on the Wong-Baker FACES pain scale,which was statistically significant(P<0.001).Analyses of post-procedure patient responses showed that STA patients had a significantly better treatment experience and preferred to have the same method of injection in the future(P=0.04).CONCLUSION STA system can provide less painful and more comfortable restorative treatment procedures in comparison to the traditional infiltration technique.
