目的探讨头尾侧联合入路在腹腔镜右半结肠癌切除术中的近期临床效果。方法收集60例右半结肠癌患者临床资料,分为观察组(头尾侧联合入路)和对照组(中间入路),比较两组间手术时间、术中失血量、淋巴结数目、系膜完整性、术后疼痛VAS评分...目的探讨头尾侧联合入路在腹腔镜右半结肠癌切除术中的近期临床效果。方法收集60例右半结肠癌患者临床资料,分为观察组(头尾侧联合入路)和对照组(中间入路),比较两组间手术时间、术中失血量、淋巴结数目、系膜完整性、术后疼痛VAS评分、术后第一次排气时间(d)、术后腹腔引流量、术后住院时间(d)、CEA、CA19-9(术前及术后6月)水平、术后近期并发症情况,并进行统计分析。结果观察组出血量少于对照组(48.33±25.88 ml vs.68.33±44.11 ml),获取淋巴结数目多于对照组(23.90±7.32个vs.18.30±6.43个),系膜完整性好于对照组(1.73±0.45分vs.1.27±0.45分)(P<0.05)。术后住院时间、第一次排气时间、术后疼痛评分、术后腹腔引流量、CEA及CA19-9变化、近期并发症方面差异均无统计学意义(均P>0.05)。结论腹腔镜右半结肠切除术采用头尾侧联合入路安全、可行。展开更多
Dextral-slip in the Nyainqentanglha region of Tibet resulted in oblique underthrusting and granite generation in the Early to Middle Miocene, but by the end of the epoch uplift and extensional faulting dominated. The ...Dextral-slip in the Nyainqentanglha region of Tibet resulted in oblique underthrusting and granite generation in the Early to Middle Miocene, but by the end of the epoch uplift and extensional faulting dominated. The east-west dextral-slip Gangdise fault system merges eastward into the northeast-trending, southeast-dipping Nyainqentanglha thrust system that swings eastward farther north into the dextral-slip North Damxung shear zone and Jiali faults. These faults were took shape by the Early Miocene, and the large Nyainqentanglha granitic batholith formed along the thrust system in 18.3-11.0 Ma as the western block drove under the eastern one. The dextral-slip movement ended at -11 Ma and the batholith rose, as marked by gravitational shearing at 8.6-8.3 Ma, and a new fault system developed. Northwest-trending dextral-slip faults formed to the northwest of the raisen batholith, whereas the northeast-trending South Damxung thrust faults with some sinistral-slip formed to the southeast. The latter are replaced farther to the east by the west-northwest-trending Lhtinzhub thrust faults with dextral-slip. This relatively local uplift that left adjacent Eocene and Miocene deposits preserved was followed by a regional uplift and the initiation of a system of generally north-south grabens in the Late Miocene at -6.5 Ma. The regional uplift of the southern Tibetan Plateau thus appears to have occurred between 8.3 Ma and 6.5 Ma. The Gulu, DamxungYangbajain and Angan graben systems that pass east of the Nyainqentanglha Mountains are locally controlled by the earlier northeast-trending faults. These grabens dominate the subsequent tectonic movement and are still very active as northwest-trending dextral-slip faults northwest of the mountains. The Miocene is a time of great tectonic change that ushered in the modern tectonic regime.展开更多
The Yunmengshan Geopark in northern Beijing is located within the Yanshan range. It contains the Yunmengshan batholith, which is dominated by two plutons： the Yunmengshan gneissic granite and the Shicheng gneissic di...The Yunmengshan Geopark in northern Beijing is located within the Yanshan range. It contains the Yunmengshan batholith, which is dominated by two plutons： the Yunmengshan gneissic granite and the Shicheng gneissic diorite. Four samples of the Yunmengshan gneissic granite give SHRIMP zircon U-Pb ages from 145 to 141 Ma, whereas four samples of the Shicheng gneissic diorite have ages from 159 Ma to 151 Ma. Dikes that cut the Yunmengshan diorite record SHRIMP zircon U-Pb age of 162±2 and 156±4 Ma. The cumulative plots of zircons from the diorites show a peak age of 155 Ma, without inherited zircon cores, and the peak age of 142 Ma for granite is interpreted as the emplacement age of the Yunmengshan granitic pluton, whose igneous zircons contain inherited zircon cores. The data presented here show that there were two pulses of magmatism： early diorites, followed c13 Ma later by true granites, which incorporated material from an older continental crust.展开更多
文摘目的探讨头尾侧联合入路在腹腔镜右半结肠癌切除术中的近期临床效果。方法收集60例右半结肠癌患者临床资料,分为观察组(头尾侧联合入路)和对照组(中间入路),比较两组间手术时间、术中失血量、淋巴结数目、系膜完整性、术后疼痛VAS评分、术后第一次排气时间(d)、术后腹腔引流量、术后住院时间(d)、CEA、CA19-9(术前及术后6月)水平、术后近期并发症情况,并进行统计分析。结果观察组出血量少于对照组(48.33±25.88 ml vs.68.33±44.11 ml),获取淋巴结数目多于对照组(23.90±7.32个vs.18.30±6.43个),系膜完整性好于对照组(1.73±0.45分vs.1.27±0.45分)(P<0.05)。术后住院时间、第一次排气时间、术后疼痛评分、术后腹腔引流量、CEA及CA19-9变化、近期并发症方面差异均无统计学意义(均P>0.05)。结论腹腔镜右半结肠切除术采用头尾侧联合入路安全、可行。
文摘Dextral-slip in the Nyainqentanglha region of Tibet resulted in oblique underthrusting and granite generation in the Early to Middle Miocene, but by the end of the epoch uplift and extensional faulting dominated. The east-west dextral-slip Gangdise fault system merges eastward into the northeast-trending, southeast-dipping Nyainqentanglha thrust system that swings eastward farther north into the dextral-slip North Damxung shear zone and Jiali faults. These faults were took shape by the Early Miocene, and the large Nyainqentanglha granitic batholith formed along the thrust system in 18.3-11.0 Ma as the western block drove under the eastern one. The dextral-slip movement ended at -11 Ma and the batholith rose, as marked by gravitational shearing at 8.6-8.3 Ma, and a new fault system developed. Northwest-trending dextral-slip faults formed to the northwest of the raisen batholith, whereas the northeast-trending South Damxung thrust faults with some sinistral-slip formed to the southeast. The latter are replaced farther to the east by the west-northwest-trending Lhtinzhub thrust faults with dextral-slip. This relatively local uplift that left adjacent Eocene and Miocene deposits preserved was followed by a regional uplift and the initiation of a system of generally north-south grabens in the Late Miocene at -6.5 Ma. The regional uplift of the southern Tibetan Plateau thus appears to have occurred between 8.3 Ma and 6.5 Ma. The Gulu, DamxungYangbajain and Angan graben systems that pass east of the Nyainqentanglha Mountains are locally controlled by the earlier northeast-trending faults. These grabens dominate the subsequent tectonic movement and are still very active as northwest-trending dextral-slip faults northwest of the mountains. The Miocene is a time of great tectonic change that ushered in the modern tectonic regime.
基金supported by the National Natural Science Foundation of China(no.:40703012)the Basic Outlay of Scientific Research Work from the Ministry of Science and Technology of the Peoples Republic of China(no.:J0809),and Miyun Tourism Administration for the Yunmengshan National Geopark.
文摘The Yunmengshan Geopark in northern Beijing is located within the Yanshan range. It contains the Yunmengshan batholith, which is dominated by two plutons： the Yunmengshan gneissic granite and the Shicheng gneissic diorite. Four samples of the Yunmengshan gneissic granite give SHRIMP zircon U-Pb ages from 145 to 141 Ma, whereas four samples of the Shicheng gneissic diorite have ages from 159 Ma to 151 Ma. Dikes that cut the Yunmengshan diorite record SHRIMP zircon U-Pb age of 162±2 and 156±4 Ma. The cumulative plots of zircons from the diorites show a peak age of 155 Ma, without inherited zircon cores, and the peak age of 142 Ma for granite is interpreted as the emplacement age of the Yunmengshan granitic pluton, whose igneous zircons contain inherited zircon cores. The data presented here show that there were two pulses of magmatism： early diorites, followed c13 Ma later by true granites, which incorporated material from an older continental crust.
