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唇口目苔藓虫群体早期发育的演化意义——Ⅰ.软壁亚目膜孔苔虫科和琥珀苔虫科的群体早期发育特点及一新属、六新种
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作者 刘锡兴 尹学明 夏娃 《海洋科学集刊》 CAS 1999年第1期128-167,234-235+240-242,共45页
苔藓动物的群体是由生理上互相连系、以无性繁殖方法复制的称之为个虫的成员组成。幼虫变态后,绝大多数苔藓虫形成构成群体基础的单一个虫,称为初虫,这些单一的初虫通常为一摄食个虫,有时则为形态多样的无摄食功能的空个虫;另一些幼虫... 苔藓动物的群体是由生理上互相连系、以无性繁殖方法复制的称之为个虫的成员组成。幼虫变态后,绝大多数苔藓虫形成构成群体基础的单一个虫,称为初虫,这些单一的初虫通常为一摄食个虫,有时则为形态多样的无摄食功能的空个虫;另一些幼虫变态后则形成2个、3个或5个个虫,称之为初虫群,初虫群的每一个体均为摄食个虫。绝大多数苔藓虫群体都由单一的初虫或初虫群以无性出芽而成,只有极少数苔藓虫群体由休眠芽产生或由裂殖方式产生。按照苔藓动物学关于群体性质的一般概念。 展开更多
关键词 初虫 早期发育 个虫列 苔虫科 唇口目 无性世代 边缘刺 后续个虫 裸壁 膜下孔
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Dehiscence following successful endoscopic closure of gastric perforation during endoscopic submucosal dissection 被引量:7
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作者 Masau Sekiguchi Haruhisa Suzuki +7 位作者 Ichiro Oda Shigetaka Yoshinaga Satoru Nonaka Makoto Saka Hitoshi Katai Hirokazu Taniguchi Ryoji Kushima Yutaka Saito 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第31期4224-4227,共4页
Gastric perforation is one of the most serious complications that can occur during endoscopic submucosal dissection(ESD).In terms of the treatment of such perforations,we previously reported that perforations immediat... Gastric perforation is one of the most serious complications that can occur during endoscopic submucosal dissection(ESD).In terms of the treatment of such perforations,we previously reported that perforations immediately observed and successfully closed with endoclips during endoscopic resection could be managed conservatively.We now report the first case in our medical facility of a gastric perforation during ESD that was ineffectively treated conservatively even after successful endoscopic closure.In December 2006,we performed ESD on a recurrent early gastric cancer in an 81-year-old man with a medical history of laparotomy for cholelithiasis.A perforation occurred during ESD that was immediately observed and successfully closed with endoclips so that ESD could be continued resulting in an en-bloc resection.Intensive conservative management was conducted following ESD,however,an endoscopic examination five days after ESD revealed dehiscence of the perforation requiring an emergency laparotomy. 展开更多
关键词 Early gastric cancer Endoscopic closure Endoscopic submucosal dissection Gastric perforation LAPAROTOMY
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Comparing twist-drill drainage with burr hole drainage for chronic subdural hematoma 被引量:3
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作者 LIN Xin 《Chinese Journal of Traumatology》 CAS 2011年第3期170-173,共4页
Objective: of chronic subdural hematoma The surgical management (CSDH) is still a controversial issue, and a standard therapy has not been established because of the unclear pathogenic mechanisms in CSDH. The inten... Objective: of chronic subdural hematoma The surgical management (CSDH) is still a controversial issue, and a standard therapy has not been established because of the unclear pathogenic mechanisms in CSDH. The intention of this paper is to find a simple and efficient surgical procedure for CSDH. Methods: A retrospective study of 448 patients with CSDH by surgical treatment during 2005 to 2009 was conducted in order to compare the efficiency between two diferent primary surgical methods, i.e. twist-drill drainage without irrigation in Group A (n-178) and one burr-hole with irrigation in Group B (n=270). The results were statistically analyzed. Results: The reoperation rates in Group A and Group B were 7.9% and 11.9% respectively. The good outcome rate was 88.8% and 73.5%, the complicatiGn was 7.9% and 20.7% in Group A and Group B, respectively. Conclusions: The burr-hole drainage with irrigation of the hematoma cavity is not beneficial to the outcome and prognosis. Irrigation is not important in the surgical treatmerit for CSDH. Thus in initial treatment, twist-drill drainage without irrigation of the hematoma cavity is recommended because it is relatively safe, time-saving and cost-effective. 展开更多
关键词 Hematoma subdural Brain injury CHRONIC Drainage
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Recurrence of chronic subdural hematoma after trepanation and drainage 被引量:4
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作者 张建平 许文辉 +1 位作者 朱立平 张翔 《Chinese Journal of Traumatology》 CAS 2003年第3期142-144,共3页
Objective: To sum up the causes of recurrence of chronic subdural hematoma (CSDH) from failure of trepanation and drainage and explore its prevention and treatment. Methods: From October 1988 to June 2002 a total of 3... Objective: To sum up the causes of recurrence of chronic subdural hematoma (CSDH) from failure of trepanation and drainage and explore its prevention and treatment. Methods: From October 1988 to June 2002 a total of 358 patients with CSDH were treated with trepanation and drainage in our hospital. Among them 15 patients had recurrence of CSDH after operation. The data of the 15 patients were reviewed retrospectively. Results: Of the 15 patients, 13 were cured by retrepanation and redrainage, one cured by removal of hematoma by craniotomy with bone flap, and one, a 1 year old child, gave up reoperation due to severe encephalatrophy. Conclusions: Most CSDHs which recur after trepanation and drainage can be cured by retrepanation and redrainage. For the patients with repeated recurrence of CSDH removal of hematoma capsule can be considered. The causes of recurrence of CSDH are related to disease course, the thickness of hematoma capsule, the severity of encephalatraphy and whether the hematoma cavity is drained or irrigated completely, and operation methods. 展开更多
关键词 Hematoma subdural RECURRENCE Trepanation and drainage
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