BACKGROUND Total gastrectomy with splenectomy is the standard treatment for advanced proximal gastric cancer with greater-curvature invasion.As an alternative to splenectomy,laparoscopic spleen-preserving splenic hila...BACKGROUND Total gastrectomy with splenectomy is the standard treatment for advanced proximal gastric cancer with greater-curvature invasion.As an alternative to splenectomy,laparoscopic spleen-preserving splenic hilar lymph node(LN)dissection(SPSHLD)has been developed.With SPSHLD,the posterior splenic hilar LNs are left behind.AIM To clarify the distribution of splenic hilar(No.10)and splenic artery(No.11p and 11d)LNs and to verify the possibility of omitting posterior LN dissection in laparoscopic SPSHLD from an anatomical standpoint.METHODS Hematoxylin&eosin-stained specimens were prepared from six cadavers,and the distribution of LN No.10,11p,and 11d was evaluated.In addition,heatmaps were constructed and three-dimensional reconstructions were created to visualize the LN distribution for qualitative evaluation.RESULTS There was little difference in the number of No.10 LNs between the anterior and posterior sides.For LN No.11p and 11d,the anterior LNs were more numerous than the posterior LNs in all cases.The number of posterior LNs increased toward the hilar side.Heatmaps and three-dimensional reconstructions showed that LN No.11p was more abundant in the superficial area,while LN No.11d and 10 were more abundant in the deep intervascular area.CONCLUSION The number of posterior LNs increased toward the hilum and was not neglectable.Thus,surgeons should consider that some posterior No.10 and No.11d LNs may remain after SPSHLD.展开更多
Background： Pathophysiological processes, such as malignancy, can lead to the formation of stiffer tissue in lung cancers. Endobronchial ultrasound rEBUS） elastography is a novel technique for measuring tissue stiff...Background： Pathophysiological processes, such as malignancy, can lead to the formation of stiffer tissue in lung cancers. Endobronchial ultrasound rEBUS） elastography is a novel technique for measuring tissue stiffness during EBUS-guided transbronchial needle aspiration （EBUS-TBNA）. The current study was conducted to investigate the diagnostic value of EBUS elastography tbr mediastinal and hilar lymph node metastasis in lung cancers. Methods： From January 2014 to January 2015, 40 patients suspected of lung cancer were enrolled, and a total of 68 lymph nodes were evaluated by EBUS-TBNA. EBUS-guided elastography of lymph nodes was perfornaed prior to EBUS-TBNA. Standard EBUS characteristics were also described. Pathological determination of malignant or benign lymph nodes was used as the gold standard for this study. If EBUS-TBNA did not result in a tbrmal pathological diagnosis of malignancy, patients were referred for a surgical procedure. Comparisons of elastography and standard EBUS characteristics were made between benign and malignant lymph nodes. Results： Elastography grading scores and strain ratios showed significant differences between benign and malignant lymph nodes （P = 0.000）. The elastography strain ratio was more sensitive and specific for determining malignant lymph nodes than elastography grading score or standard EBUS criteria. The receiver operating characteristic curve for the elastography strain ratio showed an area under the curve of 0.933. The best cut-off point of the strain ratio for differentiating malignant from benign lymph nodes was 32.07. The elastography strain ratio had a sensitivity of 88.1%, the specificity of 80.8%, positive predictive value of 88.1%, and negative predictive value of 80.8% for distinguishing malignant from benign nodes. The overall accuracy of elastography strain ratio was 85.3%. The strain ratio of malignant and benign lymph nodes positively correlated with the elastography grading score （r = 0.561, P = 0.000）. Conclusions： EBUS elastography can be effectively used to predict mediastinal and hilar lymph node metastases in lung cancer. This noninvasive technique may thus complement standard EBUS and help guide EBUS-TBNA procedures.展开更多
BACKGROUND Robotic surgery has been considered to be significantly better than laparoscopic surgery for complicated procedures.AIM To explore the short-term effect of robotic and laparoscopic spleen-preserving splenic...BACKGROUND Robotic surgery has been considered to be significantly better than laparoscopic surgery for complicated procedures.AIM To explore the short-term effect of robotic and laparoscopic spleen-preserving splenic hilar lymphadenectomy(SPSHL)for advanced gastric cancer(GC)by Huang’s three-step maneuver.METHODS A total of 643 patients who underwent SPSHL were recruited from April 2012 to July 2017,including 35 patients who underwent robotic SPSHL(RSPSHL)and 608 who underwent laparoscopic SPSHL(LSPSHL).One-to-four propensity score matching was used to analyze the differences in clinical data between patients who underwent robotic SPSHL and those who underwent laparoscopic SPSHL.RESULTS In all,175 patients were matched,including 35 patients who underwent RSPSHL and 140 who underwent LSPSHL.After matching,there were no significant differences detected in the baseline characteristics between the two groups.Significant differences in total operative time,estimated blood loss(EBL),splenic hilar blood loss(SHBL),splenic hilar dissection time(SHDT),and splenic trunk dissection time were evident between these groups(P<0.05).Furthermore,no significant differences were observed between the two groups in the overall noncompliance rate of lymph node(LN)dissection(62.9%vs 60%,P=0.757),number of retrieved No.10 LNs(3.1±1.4 vs 3.3±2.5,P=0.650),total number of examined LNs(37.8±13.1 vs 40.6±13.6,P=0.274),and postoperative complications(14.3%vs 17.9%,P=0.616).A stratified analysis that divided the patients receiving RSPSHL into an early group(EG)and a late group(LG)revealed that the LG experienced obvious improvements in SHDT and length of stay compared with the EG(P<0.05).Logistic regression showed that robotic surgery was a significantly protective factor against both SHBL and SHDT(P<0.05).CONCLUSION RSPSHL is safe and feasible,especially after overcoming the early learning curve,as this procedure results in a radical curative effect equivalent to that of LSPSHL.展开更多
D2 gastric resection has been increasingly recognized as the optimal surgical treatment for advanced gastric cancer. Dissection of the station 10 splenic lymph nodes is required in the treatment of advanced proximal g...D2 gastric resection has been increasingly recognized as the optimal surgical treatment for advanced gastric cancer. Dissection of the station 10 splenic lymph nodes is required in the treatment of advanced proximal gastric cancer. Based on vascular anatomy and anatomical plane of fascial space, integrated with our experience in station 10 splenic lymph node dissection in open surgery and proven skills of laparoscopic operation, we have successfully mastered the surgical essentials and technical keypoints in laparoscopic-assisted station 10 lymph node dissection.展开更多
目的:探讨气道内超声弹性成像技术对肺癌患者肺门纵膈淋巴结转移的诊断价值。方法:选取拟手术治疗的肺癌患者40例,术前予以超声支气管镜检查、淋巴结支气管内超声及弹性成像检查,并予以支气管内超声引导下的经支气管针吸活检术。通过比...目的:探讨气道内超声弹性成像技术对肺癌患者肺门纵膈淋巴结转移的诊断价值。方法:选取拟手术治疗的肺癌患者40例,术前予以超声支气管镜检查、淋巴结支气管内超声及弹性成像检查,并予以支气管内超声引导下的经支气管针吸活检术。通过比较良恶性淋巴结的超声弹性成像特征及弹性成像评分法与常规超声影像学特征诊断恶性淋巴结准确性差异,评估气道内超声弹性成像技术鉴别淋巴结良恶性的价值。结果:1)常规超声影像学特征中鉴别良恶性淋巴结差异有统计学意义的指标包括低回声、回声不均、边界清楚、短径大于1 cm(均P<0.01);2)气道内超声弹性成像评分在良恶性淋巴结中差异有统计学意义(P<0.01);3)弹性评分法对良恶性淋巴结的鉴别明显优于常规超声图像特征中的任何一种。弹性评分≥2.5分诊断恶性淋巴结的曲线下面积(area under the curve,AUC)最大,其诊断恶性淋巴结的特异度、敏感度、阳性预测值及阴性预测值分别为76.9%,85.7%,85.7%及76.9%,诊断的准确率为82.3%。联合指标中以弹性评分联合低回声、边缘清晰、直径大于1 cm诊断价值最大,AUC为0.911,诊断恶性淋巴结的特异度、敏感度、阳性预测值及阴性预测值分别为84.6%,88.1%,90.2%及81.5%,诊断的准确率为86.8%。结论:超声支气管镜下弹性成像技术能有效实现对肺癌患者肺门纵膈淋巴结良恶性的鉴别,比传统的淋巴结支气管内超声的图像准确率高。弹性评分联合常规超声图像特征能提高诊断效率。展开更多
文摘BACKGROUND Total gastrectomy with splenectomy is the standard treatment for advanced proximal gastric cancer with greater-curvature invasion.As an alternative to splenectomy,laparoscopic spleen-preserving splenic hilar lymph node(LN)dissection(SPSHLD)has been developed.With SPSHLD,the posterior splenic hilar LNs are left behind.AIM To clarify the distribution of splenic hilar(No.10)and splenic artery(No.11p and 11d)LNs and to verify the possibility of omitting posterior LN dissection in laparoscopic SPSHLD from an anatomical standpoint.METHODS Hematoxylin&eosin-stained specimens were prepared from six cadavers,and the distribution of LN No.10,11p,and 11d was evaluated.In addition,heatmaps were constructed and three-dimensional reconstructions were created to visualize the LN distribution for qualitative evaluation.RESULTS There was little difference in the number of No.10 LNs between the anterior and posterior sides.For LN No.11p and 11d,the anterior LNs were more numerous than the posterior LNs in all cases.The number of posterior LNs increased toward the hilar side.Heatmaps and three-dimensional reconstructions showed that LN No.11p was more abundant in the superficial area,while LN No.11d and 10 were more abundant in the deep intervascular area.CONCLUSION The number of posterior LNs increased toward the hilum and was not neglectable.Thus,surgeons should consider that some posterior No.10 and No.11d LNs may remain after SPSHLD.
文摘Background： Pathophysiological processes, such as malignancy, can lead to the formation of stiffer tissue in lung cancers. Endobronchial ultrasound rEBUS） elastography is a novel technique for measuring tissue stiffness during EBUS-guided transbronchial needle aspiration （EBUS-TBNA）. The current study was conducted to investigate the diagnostic value of EBUS elastography tbr mediastinal and hilar lymph node metastasis in lung cancers. Methods： From January 2014 to January 2015, 40 patients suspected of lung cancer were enrolled, and a total of 68 lymph nodes were evaluated by EBUS-TBNA. EBUS-guided elastography of lymph nodes was perfornaed prior to EBUS-TBNA. Standard EBUS characteristics were also described. Pathological determination of malignant or benign lymph nodes was used as the gold standard for this study. If EBUS-TBNA did not result in a tbrmal pathological diagnosis of malignancy, patients were referred for a surgical procedure. Comparisons of elastography and standard EBUS characteristics were made between benign and malignant lymph nodes. Results： Elastography grading scores and strain ratios showed significant differences between benign and malignant lymph nodes （P = 0.000）. The elastography strain ratio was more sensitive and specific for determining malignant lymph nodes than elastography grading score or standard EBUS criteria. The receiver operating characteristic curve for the elastography strain ratio showed an area under the curve of 0.933. The best cut-off point of the strain ratio for differentiating malignant from benign lymph nodes was 32.07. The elastography strain ratio had a sensitivity of 88.1%, the specificity of 80.8%, positive predictive value of 88.1%, and negative predictive value of 80.8% for distinguishing malignant from benign nodes. The overall accuracy of elastography strain ratio was 85.3%. The strain ratio of malignant and benign lymph nodes positively correlated with the elastography grading score （r = 0.561, P = 0.000）. Conclusions： EBUS elastography can be effectively used to predict mediastinal and hilar lymph node metastases in lung cancer. This noninvasive technique may thus complement standard EBUS and help guide EBUS-TBNA procedures.
基金Supported by the Scientific and Technological Innovation Joint Capital Projects of Fujian Province,China,No.2016Y9031the Construction Project of Fujian Province Minimally Invasive Medical Center,No.[2017]171+2 种基金the Second-batch Special Support Funds for Fujian Province Innovation and Entrepreneurship Talents,No.2016B013Science and Technology Innovation Joint Fund Project of Fujian Province,No.2017Y9004the Special Fund for Clinical Research of the Wu Jieping Medical Foundation,No.320.6750.17511
文摘BACKGROUND Robotic surgery has been considered to be significantly better than laparoscopic surgery for complicated procedures.AIM To explore the short-term effect of robotic and laparoscopic spleen-preserving splenic hilar lymphadenectomy(SPSHL)for advanced gastric cancer(GC)by Huang’s three-step maneuver.METHODS A total of 643 patients who underwent SPSHL were recruited from April 2012 to July 2017,including 35 patients who underwent robotic SPSHL(RSPSHL)and 608 who underwent laparoscopic SPSHL(LSPSHL).One-to-four propensity score matching was used to analyze the differences in clinical data between patients who underwent robotic SPSHL and those who underwent laparoscopic SPSHL.RESULTS In all,175 patients were matched,including 35 patients who underwent RSPSHL and 140 who underwent LSPSHL.After matching,there were no significant differences detected in the baseline characteristics between the two groups.Significant differences in total operative time,estimated blood loss(EBL),splenic hilar blood loss(SHBL),splenic hilar dissection time(SHDT),and splenic trunk dissection time were evident between these groups(P<0.05).Furthermore,no significant differences were observed between the two groups in the overall noncompliance rate of lymph node(LN)dissection(62.9%vs 60%,P=0.757),number of retrieved No.10 LNs(3.1±1.4 vs 3.3±2.5,P=0.650),total number of examined LNs(37.8±13.1 vs 40.6±13.6,P=0.274),and postoperative complications(14.3%vs 17.9%,P=0.616).A stratified analysis that divided the patients receiving RSPSHL into an early group(EG)and a late group(LG)revealed that the LG experienced obvious improvements in SHDT and length of stay compared with the EG(P<0.05).Logistic regression showed that robotic surgery was a significantly protective factor against both SHBL and SHDT(P<0.05).CONCLUSION RSPSHL is safe and feasible,especially after overcoming the early learning curve,as this procedure results in a radical curative effect equivalent to that of LSPSHL.
文摘D2 gastric resection has been increasingly recognized as the optimal surgical treatment for advanced gastric cancer. Dissection of the station 10 splenic lymph nodes is required in the treatment of advanced proximal gastric cancer. Based on vascular anatomy and anatomical plane of fascial space, integrated with our experience in station 10 splenic lymph node dissection in open surgery and proven skills of laparoscopic operation, we have successfully mastered the surgical essentials and technical keypoints in laparoscopic-assisted station 10 lymph node dissection.
文摘目的:探讨气道内超声弹性成像技术对肺癌患者肺门纵膈淋巴结转移的诊断价值。方法:选取拟手术治疗的肺癌患者40例,术前予以超声支气管镜检查、淋巴结支气管内超声及弹性成像检查,并予以支气管内超声引导下的经支气管针吸活检术。通过比较良恶性淋巴结的超声弹性成像特征及弹性成像评分法与常规超声影像学特征诊断恶性淋巴结准确性差异,评估气道内超声弹性成像技术鉴别淋巴结良恶性的价值。结果:1)常规超声影像学特征中鉴别良恶性淋巴结差异有统计学意义的指标包括低回声、回声不均、边界清楚、短径大于1 cm(均P<0.01);2)气道内超声弹性成像评分在良恶性淋巴结中差异有统计学意义(P<0.01);3)弹性评分法对良恶性淋巴结的鉴别明显优于常规超声图像特征中的任何一种。弹性评分≥2.5分诊断恶性淋巴结的曲线下面积(area under the curve,AUC)最大,其诊断恶性淋巴结的特异度、敏感度、阳性预测值及阴性预测值分别为76.9%,85.7%,85.7%及76.9%,诊断的准确率为82.3%。联合指标中以弹性评分联合低回声、边缘清晰、直径大于1 cm诊断价值最大,AUC为0.911,诊断恶性淋巴结的特异度、敏感度、阳性预测值及阴性预测值分别为84.6%,88.1%,90.2%及81.5%,诊断的准确率为86.8%。结论:超声支气管镜下弹性成像技术能有效实现对肺癌患者肺门纵膈淋巴结良恶性的鉴别,比传统的淋巴结支气管内超声的图像准确率高。弹性评分联合常规超声图像特征能提高诊断效率。
