目前盐腔围岩蠕变模拟中计算网格生成多是理想化的,并没有充分利用真实探测数据。针对这些问题,提出了一种新的三维计算模型生成方法。借助HalfEdge数据结构,基于研究区域边界、DEM(digital element model,数字高程模型)和钻井数据,构...目前盐腔围岩蠕变模拟中计算网格生成多是理想化的,并没有充分利用真实探测数据。针对这些问题,提出了一种新的三维计算模型生成方法。借助HalfEdge数据结构,基于研究区域边界、DEM(digital element model,数字高程模型)和钻井数据,构建了研究区域地层三维模型;基于声纳测腔数据构建了盐腔三维模型,并对其进行了拓扑检查与修正;将地层三维模型与盐腔三维模型进行三维空间布尔运算,获取盐腔围岩三维模型;通过对该模型进行三维空间网格离散,得到盐腔围岩四面体网格单元,即数值模拟计算模型。通过该方法构建的三维计算模型,可以为后期盐腔围岩蠕变数值模拟过程提供有效的计算网格,进而可以为盐腔的建造,尤其是安全合理地利用盐腔提供科学依据和技术支持。展开更多
目的探讨加速康复外科护理在腹腔镜治疗子宫肌瘤围术期的应用。方法选择2016年5月—2017年9月在本院妇科行腹腔镜下子宫次全切术的子宫肌瘤患者160例作为研究对象,采用随机数字表法分为实验组和对照组两组,每组各80例。实验组严格按加...目的探讨加速康复外科护理在腹腔镜治疗子宫肌瘤围术期的应用。方法选择2016年5月—2017年9月在本院妇科行腹腔镜下子宫次全切术的子宫肌瘤患者160例作为研究对象,采用随机数字表法分为实验组和对照组两组,每组各80例。实验组严格按加速康复的外科护理办法,对照组采用传统的程序化护理办法,观察两组患者的住院时间、住院费用、满意度、肛门排气时间及术后并发症等指标。结果实验组患者对护理服务满意度明显高于对照组,术后并发症的发生率明显低于对照组(P<0.05),实验组的住院时间[(5.35±1.05) d vs (7.65±1.05) d]、排气时间[(28.25±4.12) h vs (41.93±9.81) h]、术后静脉输液时间[(8.12±1.38) d vs (8.12±1.38) d]及住院费用[(95621±375)元vs(13525±521)元]均显著低于对照组(P<0.05)。结论腹腔镜围手术期应用加速康复外科护理效果优于传统护理,有利于患者康复。展开更多
Peritoneal surface malignancies are generally associated with poor prognosis. In daily clinical routine, systemic chemotherapy is still considered the only reasonable therapy despite of encouraging results of cytoredu...Peritoneal surface malignancies are generally associated with poor prognosis. In daily clinical routine, systemic chemotherapy is still considered the only reasonable therapy despite of encouraging results of cytoreductive surgery (CRS) along with intraperitoneal hyperthermic chemotherapy (HIPEC). The Achilles heel of CRS and HIPEC is appropriate patient selection and precise surgical technique preventing patients from excessive morbidity and mortality. Given these findings, new concepts of second look surgery for high risk patients allow detection of peritoneal spread ahead of clinical symptoms or presence of peritoneal masses reducing perioperative morbidity. In addition, personalized intraperitoneal chemotherapy might further improve outcome by appreciating individual tumor biology. These days, every physician should be aware of CRS and HIPEC for treatment of peritoneal surface malignancies. Since there is now sufficient data for the superiority of CRS and HIPEC to systemic chemotherapy in selected patients, our next goal should be providing this strategy with minimal morbidity and mortality even in the presence of higher tumor load.展开更多
AIM:To investigate the feasibility and therapeutic effect of laparoscopic surgery for pyogenic liver abscess(PLA) with biliary pathology.METHODS:From January 2004 to October 2010,31 patients with PLA combined with bil...AIM:To investigate the feasibility and therapeutic effect of laparoscopic surgery for pyogenic liver abscess(PLA) with biliary pathology.METHODS:From January 2004 to October 2010,31 patients with PLA combined with biliary pathology meeting entry criteria received surgical management in our hospital.Of the 31 patients,13 underwent laparoscopic surgery(LS group) and 18 underwent open surgery(OS group).Clinical data including operation time,intraoperative blood loss,postoperative complication rate,length of postoperative hospital stay,and abscess recurrence rate were retrospectively analyzed and compared between the two groups.RESULTS:All patients received systemic antibiotic therapy.Four patients underwent ultrasound-guided percutaneous catheter drainage before operation.Postoperative complications occurred in 5 patients(16.1%,5/31) including 2 in the LS group and 3 in the OS group.One patient had retained calculus in the common bile duct and another had liver abscess recurrence in the OS group.No retained calculus and liver abscess recurrence occurred in the LS group.In the two groups,there was no mortality during the perioperative period.There were no significant differences in operation time,intraoperative blood loss and transfusion,postoperative complication rate and abscess recurrence rate between the two groups.Oral intake was earlier(1.9 ± 0.4 d vs 3.1 ± 0.7 d,P < 0.05) and length of postoperative hospital stay was shorter(11.3 ± 2.9 d vs 14.5 ± 3.7 d,P < 0.05) in the LS group than in the OS group.CONCLUSION:Laparoscopic surgery for simultaneous treatment of PLA and biliary pathology is feasible in selected patients and the therapeutic effect is similar to that of open surgery.展开更多
In this research, the state of the gastric secretion in 38 days old ostrich embryos and chicks of different age was investigated by determining the pH level in the stomach as well as the histological structure of the ...In this research, the state of the gastric secretion in 38 days old ostrich embryos and chicks of different age was investigated by determining the pH level in the stomach as well as the histological structure of the deep proventricular glands （gll. proventriculares profundi）. In both parts of the stomach, on the 38th day of embryonic development pH parameters were higher than in chicks after hatching. The proventricular deep gland lobules and secretory epithelium on the 38th day of embryonic development and on the day of hatching were comparatively poorly developed. The most rapid increase of the proportion of the secretory epithelium of the proventricular deep glands was observed just before hatching and during the first week after hatching, but having reached two weeks of age it did not increase any more. The obtained results allow making a conclusion that already on the day of hatching an intensive gastric juice secretion occurs in the proventricular deep glands regardless of the stage of their histological development. The gastric intraluminal pH parameters indicate that the gastric secretion increases with chicks advancing in age, however on the day of hatching this important gastric function is biologically rather complete.展开更多
文摘目前盐腔围岩蠕变模拟中计算网格生成多是理想化的,并没有充分利用真实探测数据。针对这些问题,提出了一种新的三维计算模型生成方法。借助HalfEdge数据结构,基于研究区域边界、DEM(digital element model,数字高程模型)和钻井数据,构建了研究区域地层三维模型;基于声纳测腔数据构建了盐腔三维模型,并对其进行了拓扑检查与修正;将地层三维模型与盐腔三维模型进行三维空间布尔运算,获取盐腔围岩三维模型;通过对该模型进行三维空间网格离散,得到盐腔围岩四面体网格单元,即数值模拟计算模型。通过该方法构建的三维计算模型,可以为后期盐腔围岩蠕变数值模拟过程提供有效的计算网格,进而可以为盐腔的建造,尤其是安全合理地利用盐腔提供科学依据和技术支持。
文摘目的探讨加速康复外科护理在腹腔镜治疗子宫肌瘤围术期的应用。方法选择2016年5月—2017年9月在本院妇科行腹腔镜下子宫次全切术的子宫肌瘤患者160例作为研究对象,采用随机数字表法分为实验组和对照组两组,每组各80例。实验组严格按加速康复的外科护理办法,对照组采用传统的程序化护理办法,观察两组患者的住院时间、住院费用、满意度、肛门排气时间及术后并发症等指标。结果实验组患者对护理服务满意度明显高于对照组,术后并发症的发生率明显低于对照组(P<0.05),实验组的住院时间[(5.35±1.05) d vs (7.65±1.05) d]、排气时间[(28.25±4.12) h vs (41.93±9.81) h]、术后静脉输液时间[(8.12±1.38) d vs (8.12±1.38) d]及住院费用[(95621±375)元vs(13525±521)元]均显著低于对照组(P<0.05)。结论腹腔镜围手术期应用加速康复外科护理效果优于传统护理,有利于患者康复。
文摘Peritoneal surface malignancies are generally associated with poor prognosis. In daily clinical routine, systemic chemotherapy is still considered the only reasonable therapy despite of encouraging results of cytoreductive surgery (CRS) along with intraperitoneal hyperthermic chemotherapy (HIPEC). The Achilles heel of CRS and HIPEC is appropriate patient selection and precise surgical technique preventing patients from excessive morbidity and mortality. Given these findings, new concepts of second look surgery for high risk patients allow detection of peritoneal spread ahead of clinical symptoms or presence of peritoneal masses reducing perioperative morbidity. In addition, personalized intraperitoneal chemotherapy might further improve outcome by appreciating individual tumor biology. These days, every physician should be aware of CRS and HIPEC for treatment of peritoneal surface malignancies. Since there is now sufficient data for the superiority of CRS and HIPEC to systemic chemotherapy in selected patients, our next goal should be providing this strategy with minimal morbidity and mortality even in the presence of higher tumor load.
文摘AIM:To investigate the feasibility and therapeutic effect of laparoscopic surgery for pyogenic liver abscess(PLA) with biliary pathology.METHODS:From January 2004 to October 2010,31 patients with PLA combined with biliary pathology meeting entry criteria received surgical management in our hospital.Of the 31 patients,13 underwent laparoscopic surgery(LS group) and 18 underwent open surgery(OS group).Clinical data including operation time,intraoperative blood loss,postoperative complication rate,length of postoperative hospital stay,and abscess recurrence rate were retrospectively analyzed and compared between the two groups.RESULTS:All patients received systemic antibiotic therapy.Four patients underwent ultrasound-guided percutaneous catheter drainage before operation.Postoperative complications occurred in 5 patients(16.1%,5/31) including 2 in the LS group and 3 in the OS group.One patient had retained calculus in the common bile duct and another had liver abscess recurrence in the OS group.No retained calculus and liver abscess recurrence occurred in the LS group.In the two groups,there was no mortality during the perioperative period.There were no significant differences in operation time,intraoperative blood loss and transfusion,postoperative complication rate and abscess recurrence rate between the two groups.Oral intake was earlier(1.9 ± 0.4 d vs 3.1 ± 0.7 d,P < 0.05) and length of postoperative hospital stay was shorter(11.3 ± 2.9 d vs 14.5 ± 3.7 d,P < 0.05) in the LS group than in the OS group.CONCLUSION:Laparoscopic surgery for simultaneous treatment of PLA and biliary pathology is feasible in selected patients and the therapeutic effect is similar to that of open surgery.
文摘In this research, the state of the gastric secretion in 38 days old ostrich embryos and chicks of different age was investigated by determining the pH level in the stomach as well as the histological structure of the deep proventricular glands （gll. proventriculares profundi）. In both parts of the stomach, on the 38th day of embryonic development pH parameters were higher than in chicks after hatching. The proventricular deep gland lobules and secretory epithelium on the 38th day of embryonic development and on the day of hatching were comparatively poorly developed. The most rapid increase of the proportion of the secretory epithelium of the proventricular deep glands was observed just before hatching and during the first week after hatching, but having reached two weeks of age it did not increase any more. The obtained results allow making a conclusion that already on the day of hatching an intensive gastric juice secretion occurs in the proventricular deep glands regardless of the stage of their histological development. The gastric intraluminal pH parameters indicate that the gastric secretion increases with chicks advancing in age, however on the day of hatching this important gastric function is biologically rather complete.
