The Grove Mountains, located between the Zhongshan Station and Dome A, are a very important area in inland Antarctic research. China has organized ifve investigations of the Grove Mountains, encompassing the geologica...The Grove Mountains, located between the Zhongshan Station and Dome A, are a very important area in inland Antarctic research. China has organized ifve investigations of the Grove Mountains, encompassing the geological structure, ancient climate, meteorites, ice-movement monitoring, basic mapping, meteorological observations, and other multi-disciplinary observational studies. During the 26th Chinese National Antarctic Research Expedition in 2010, the Grove Mountains investigation team applied specialized ground-penetrating radar （GPR） to survey subglacial topography in the eastern kernel area of the Grove Mountains. In this paper, we processed GPS and GPR data gathered in the ifeld and drew, for the ifrst time, two subglacial topographic maps of the Grove Mountains kernel area using professional graphics software. The preliminary results reveal the mystery of the nunatak landform of this area, give an exploratory sense of the real bedrock landforms, and indicate a possible sedimentary basin under the Pliocene epoch fossil ice in the Grove Mountains area. Additionally, it has been proven from cross-sectional analysis between Mount Harding and the Zakharoff ridge that the box-valley shape between two nunataks has already matured.展开更多
目的比较单孔胸腔镜肺叶切除术与传统三孔胸腔镜肺叶切除术的围术期效果。方法从前瞻性建设的数据库中搜集2014年1月到2021年4月于四川大学华西医院胸外科行单孔或三孔胸腔镜肺叶切除术的肺癌患者数据。共纳入5817例行单孔或三孔胸腔镜...目的比较单孔胸腔镜肺叶切除术与传统三孔胸腔镜肺叶切除术的围术期效果。方法从前瞻性建设的数据库中搜集2014年1月到2021年4月于四川大学华西医院胸外科行单孔或三孔胸腔镜肺叶切除术的肺癌患者数据。共纳入5817例行单孔或三孔胸腔镜肺叶切除术的肺癌患者(单孔∶三孔=530∶5287)。通过倾向性评分共匹配(1∶3)到2112例患者,其中单孔组529例,男320例、女209例,中位年龄58(51,65)岁;三孔组1583例,男915例、女668例,中位年龄58(51,65)岁。结果相比三孔组,单孔组患者术中出血量更少(20 mL vs.30 mL,P<0.001)、手术时间更长(115 min vs.105 min,P<0.001);而两组淋巴结清扫个数、中转开胸率、术后并发症发生率、术后当天及术后1~3 d疼痛评分、术后住院时间和住院费用差异均无统计学意义。结论虽然单孔胸腔镜与三孔胸腔镜术中出血量表现出差异,但单孔和三孔胸腔镜肺叶切除术的围术期总体效果无显著差异。相比三孔胸腔镜肺叶切除术,单孔胸腔镜肺叶切除术也是一种安全、有效的胸腔镜肺叶切除方法。展开更多
目的研究周围型实性小结节肺癌[直径(T)≤2 cm]术后复发转移危险因素和不同手术方式对预后的影响。方法从本中心前瞻性建设的中国西部肺癌数据库(Western China Lung Cancer Database,WCLCD)及美国监测、流行病学和最终结果(Surveillanc...目的研究周围型实性小结节肺癌[直径(T)≤2 cm]术后复发转移危险因素和不同手术方式对预后的影响。方法从本中心前瞻性建设的中国西部肺癌数据库(Western China Lung Cancer Database,WCLCD)及美国监测、流行病学和最终结果(Surveillance,Epidemiology,and End Results,SEER)数据库中搜集2005~2016年行手术治疗的Ⅰ期周围型实性小结节肺癌(T≤2 cm)病例数据。通过单因素和多因素logistic回归分析术后复发转移危险因素。采用倾向性评分匹配比较肺段切除和肺叶切除的切除效果,并比较WCLCD和SEER数据库病例的生存差异。共纳入4 800例(WCLCD∶SEER=354∶4 446)周围型实性小结节肺癌(T≤2 cm N0M0)。对于T≤1 cm的实性小结节肺癌,按1∶4倾向性评分匹配到肺段组103例、肺叶组350例;对于1 cm1~2 cm的实性小结节肺癌,肺段切除术和肺叶切除术5年总生存率相当。相比SEER数据库,WCLCD数据库周围型实性小结节肺癌病例远期生存更好。展开更多
基金supported by the Chinese Polar Environment Comprehensive Investigation & Assessment Programs(Grant no.CHINARE-2014-02-02)
文摘The Grove Mountains, located between the Zhongshan Station and Dome A, are a very important area in inland Antarctic research. China has organized ifve investigations of the Grove Mountains, encompassing the geological structure, ancient climate, meteorites, ice-movement monitoring, basic mapping, meteorological observations, and other multi-disciplinary observational studies. During the 26th Chinese National Antarctic Research Expedition in 2010, the Grove Mountains investigation team applied specialized ground-penetrating radar （GPR） to survey subglacial topography in the eastern kernel area of the Grove Mountains. In this paper, we processed GPS and GPR data gathered in the ifeld and drew, for the ifrst time, two subglacial topographic maps of the Grove Mountains kernel area using professional graphics software. The preliminary results reveal the mystery of the nunatak landform of this area, give an exploratory sense of the real bedrock landforms, and indicate a possible sedimentary basin under the Pliocene epoch fossil ice in the Grove Mountains area. Additionally, it has been proven from cross-sectional analysis between Mount Harding and the Zakharoff ridge that the box-valley shape between two nunataks has already matured.
文摘目的比较单孔胸腔镜肺叶切除术与传统三孔胸腔镜肺叶切除术的围术期效果。方法从前瞻性建设的数据库中搜集2014年1月到2021年4月于四川大学华西医院胸外科行单孔或三孔胸腔镜肺叶切除术的肺癌患者数据。共纳入5817例行单孔或三孔胸腔镜肺叶切除术的肺癌患者(单孔∶三孔=530∶5287)。通过倾向性评分共匹配(1∶3)到2112例患者,其中单孔组529例,男320例、女209例,中位年龄58(51,65)岁;三孔组1583例,男915例、女668例,中位年龄58(51,65)岁。结果相比三孔组,单孔组患者术中出血量更少(20 mL vs.30 mL,P<0.001)、手术时间更长(115 min vs.105 min,P<0.001);而两组淋巴结清扫个数、中转开胸率、术后并发症发生率、术后当天及术后1~3 d疼痛评分、术后住院时间和住院费用差异均无统计学意义。结论虽然单孔胸腔镜与三孔胸腔镜术中出血量表现出差异,但单孔和三孔胸腔镜肺叶切除术的围术期总体效果无显著差异。相比三孔胸腔镜肺叶切除术,单孔胸腔镜肺叶切除术也是一种安全、有效的胸腔镜肺叶切除方法。
文摘目的研究周围型实性小结节肺癌[直径(T)≤2 cm]术后复发转移危险因素和不同手术方式对预后的影响。方法从本中心前瞻性建设的中国西部肺癌数据库(Western China Lung Cancer Database,WCLCD)及美国监测、流行病学和最终结果(Surveillance,Epidemiology,and End Results,SEER)数据库中搜集2005~2016年行手术治疗的Ⅰ期周围型实性小结节肺癌(T≤2 cm)病例数据。通过单因素和多因素logistic回归分析术后复发转移危险因素。采用倾向性评分匹配比较肺段切除和肺叶切除的切除效果,并比较WCLCD和SEER数据库病例的生存差异。共纳入4 800例(WCLCD∶SEER=354∶4 446)周围型实性小结节肺癌(T≤2 cm N0M0)。对于T≤1 cm的实性小结节肺癌,按1∶4倾向性评分匹配到肺段组103例、肺叶组350例;对于1 cm1~2 cm的实性小结节肺癌,肺段切除术和肺叶切除术5年总生存率相当。相比SEER数据库,WCLCD数据库周围型实性小结节肺癌病例远期生存更好。
