The observation of geomagnetic field variations is an important approach to studying earthquake precursors.Since 1987,the China Earthquake Administration has explored this seismomagnetic relationship.In particular,the...The observation of geomagnetic field variations is an important approach to studying earthquake precursors.Since 1987,the China Earthquake Administration has explored this seismomagnetic relationship.In particular,they studied local magnetic field anomalies over the Chinese mainland for earthquake prediction.Owing to the years of research on the seismomagnetic relationship,earthquake prediction experts have concluded that the compressive magnetic effect,tectonic magnetic effect,electric magnetic fluid effect,and other factors contribute to preearthquake magnetic anomalies.However,this involves a small magnitude of magnetic field changes.It is difficult to relate them to the abnormal changes of the extremely large magnetic field in regions with extreme earthquakes owing to the high cost of professional geomagnetic equipment,thereby limiting large-scale deployment.Moreover,it is difficult to obtain strong magnetic field changes before an earthquake.The Tianjin Earthquake Agency has developed low-cost geomagnetic field observation equipment through the Beijing–Tianjin–Hebei geomagnetic equipment test project.The new system was used to test the availability of equipment and determine the findings based on big data..展开更多
目的探讨超声引导下腋后线前锯肌平面(Serratus Plane,SP)阻滞在胸腔镜肺叶切除术中的应用。方法方便选取2016年1月—2017年8月在兰陵县人民医院择期进行电视辅助胸腔镜肺叶切除术的患者120例,随机分为两组:腋后线前锯肌阻滞组(SP组)和...目的探讨超声引导下腋后线前锯肌平面(Serratus Plane,SP)阻滞在胸腔镜肺叶切除术中的应用。方法方便选取2016年1月—2017年8月在兰陵县人民医院择期进行电视辅助胸腔镜肺叶切除术的患者120例,随机分为两组:腋后线前锯肌阻滞组(SP组)和对照组(C组),每组60例患者。于麻醉诱导后行超声引导下术侧SP阻滞,SP组注射0.375%罗哌卡因20 mL,C组注射等体积生理盐水。记录术后自控镇痛使用舒芬太尼的累计追加用量。对患者进行术后随访,分别对其术后平静状态和活动状态时伤口疼痛情况进行视觉模拟评分,即VAS评分。呼吸循环功能监测患者的呼吸功能,记录术毕后4 h两组患者的呼吸频率、潮气量、分钟通气量及最大通气量。观察并记录患者术后有无皮肤瘙痒、恶心、呕吐等不良症状的发生。观察患者术后有无肋间神经阻滞引起的并发症。结果与对照组相比,SP阻滞研究组VAS疼痛评分在术后4 h [(0.9±0.7)分vs (3.1±1.5)分],24 h [(1.3±1.5)分vs (2.5±1.7)分],VAS评分均明显降低,差异有统计学意义(t=2.060、2.071,P<0.05);术后舒芬太尼累积追加用量12 h [(13.3±1.9)μg vs (21.2±2.4)μg],24 h[(26.7±2.1)μg vs (35.3±3.2)μg],累计追加剂量明显减少,差异有统计学意义(t=2.064、2.715,P<0.05)。同时SP组患者因疼痛减轻术后4 h的呼吸频率[(16±2)bpm vs (20±3)bpm],分钟通气量[(5 345±419)mL/min vs (4 121±388)mL/min],呼吸功能比对照组有明显改善,差异有统计学意义(t=2.060、2.177,P<0.05)。两组患者均未见严重并发症。结论超声引导腋后线前锯肌阻滞能减轻胸腔镜肺叶切除术患者术后24 h内的急性疼痛,并且能减少静脉自控镇痛阿片类药物的累积用量,增加分钟通气量,减少术后呼吸系统并发症。展开更多
基金supported by the Spark Program of Earthquake Science and Technology(No.XH23003C).
文摘The observation of geomagnetic field variations is an important approach to studying earthquake precursors.Since 1987,the China Earthquake Administration has explored this seismomagnetic relationship.In particular,they studied local magnetic field anomalies over the Chinese mainland for earthquake prediction.Owing to the years of research on the seismomagnetic relationship,earthquake prediction experts have concluded that the compressive magnetic effect,tectonic magnetic effect,electric magnetic fluid effect,and other factors contribute to preearthquake magnetic anomalies.However,this involves a small magnitude of magnetic field changes.It is difficult to relate them to the abnormal changes of the extremely large magnetic field in regions with extreme earthquakes owing to the high cost of professional geomagnetic equipment,thereby limiting large-scale deployment.Moreover,it is difficult to obtain strong magnetic field changes before an earthquake.The Tianjin Earthquake Agency has developed low-cost geomagnetic field observation equipment through the Beijing–Tianjin–Hebei geomagnetic equipment test project.The new system was used to test the availability of equipment and determine the findings based on big data..
文摘目的探讨超声引导下腋后线前锯肌平面(Serratus Plane,SP)阻滞在胸腔镜肺叶切除术中的应用。方法方便选取2016年1月—2017年8月在兰陵县人民医院择期进行电视辅助胸腔镜肺叶切除术的患者120例,随机分为两组:腋后线前锯肌阻滞组(SP组)和对照组(C组),每组60例患者。于麻醉诱导后行超声引导下术侧SP阻滞,SP组注射0.375%罗哌卡因20 mL,C组注射等体积生理盐水。记录术后自控镇痛使用舒芬太尼的累计追加用量。对患者进行术后随访,分别对其术后平静状态和活动状态时伤口疼痛情况进行视觉模拟评分,即VAS评分。呼吸循环功能监测患者的呼吸功能,记录术毕后4 h两组患者的呼吸频率、潮气量、分钟通气量及最大通气量。观察并记录患者术后有无皮肤瘙痒、恶心、呕吐等不良症状的发生。观察患者术后有无肋间神经阻滞引起的并发症。结果与对照组相比,SP阻滞研究组VAS疼痛评分在术后4 h [(0.9±0.7)分vs (3.1±1.5)分],24 h [(1.3±1.5)分vs (2.5±1.7)分],VAS评分均明显降低,差异有统计学意义(t=2.060、2.071,P<0.05);术后舒芬太尼累积追加用量12 h [(13.3±1.9)μg vs (21.2±2.4)μg],24 h[(26.7±2.1)μg vs (35.3±3.2)μg],累计追加剂量明显减少,差异有统计学意义(t=2.064、2.715,P<0.05)。同时SP组患者因疼痛减轻术后4 h的呼吸频率[(16±2)bpm vs (20±3)bpm],分钟通气量[(5 345±419)mL/min vs (4 121±388)mL/min],呼吸功能比对照组有明显改善,差异有统计学意义(t=2.060、2.177,P<0.05)。两组患者均未见严重并发症。结论超声引导腋后线前锯肌阻滞能减轻胸腔镜肺叶切除术患者术后24 h内的急性疼痛,并且能减少静脉自控镇痛阿片类药物的累积用量,增加分钟通气量,减少术后呼吸系统并发症。
