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排序方式: 共有7638条查询结果,搜索用时 15 毫秒
51.
F. Pott F. S. Larsen E. Ejlersen P. Linkis L. G. Jrgensen N. H. Secher 《Clinical physiology and functional imaging》1995,15(2):119-130
Summary. During transplantation of the liver cerebral perfusion was monitored by transcranial Doppler determined middle cerebral artery mean flow velocity (Vmean) and pulsatility index (PI) in six fulminant hepatic failure patients and 11 patients with chronic liver disease. In both groups of patients Vmean, PI and central haemodynamic variables were recorded during (1) the last preanhepatic hour; (2) the anhepatic phase; (3) the first 15 min of reperfusion; and (4) for the following 45 min of reperfusion. No significant differences were detected between the two groups of patients with respect to changes of variables with time. The Vmean (40±13 cm s-1 [mean±SD]), thoracic electrical impedance (TI) (30±7 Ohm), heart rate (97±19 beats min-1), mean arterial pressure (84±9 mmHg) and arterial carbon dioxide tension (PaCO2, 4.5±0.4 kPa) remained stable in the anhepatic phase, while cardiac output (CO, 7.6±2.7 to 5.4±1.41 min-1), stroke volume (SV, 79±26 to 56±15 ml) and PI (1.2±0.3 to 0.9±0.2) decreased (P<0.05). During reperfusion, CO (9.9±4.01 min-1), SV (105±40 ml), PaCO2 (5.5±0.6 kPa), Vmean (57±17 cm s-1) and PI (1.2±0.2) became elevated. Taken together, during the anhepatic phase of the liver transplantation a maintained central blood volume as indicated by the constant TI served for a stable blood pressure and in turn cerebral perfusion, whereas revascularization of the graft increased cerebral perfusion concomitant with an elevated carbon dioxide tension. 相似文献
52.
Chien-Chih Lin 《Surgical endoscopy》1990,4(4):224-226
Summary Although hyperhidrosis palmaris is a benign condition, it may cause considerable psychological, social, and occupational disturbances. There are many conservative measures used to treat hyperhidrosis, but surgical sympathectomy is the only permanent cure. Of the various surgical approaches to the upper thoracic sympathetic ganglia, one must select the approach that combines good functional results and a satisfactory cosmetic outcome with only minor complications. Twenty-one patients (10 men and 11 women) with hyperhidrosis palmaris underwent synchronous bilateral T2 sympathectomy between 1 October 1989 and 30 April 1990. These patients underwent a new method of thoracoscopic sympathectomy without preoperative pneumothorax. All were relieved of excessive sweating in their upper extremities immediately after the operation. In addition, the technique led to significant savings in operation and hospitalization time. We recommend thoracoscopic sympathectomy as the best approach for sympathectomy in cases of hyperhidrosis palmaris. 相似文献
53.
54.
Masahiro Tsuboi Hisao Asamura Tsuguo Naruke Haruhiko Nakayama Haruhiko Kondo Ryosuke Tsuchiya 《Surgery today》1997,27(11):1074-1076
A video-assisted right upper lobectomy was successfully performed on a 58-year-old man with an anomalnous segmental pulmonary
vein. The tumor was a peripherally located adenocarcinoma. The anomalous vein behind the right main bronchus was identified
and safely divided. This case emphasized that to perform this procedure successfully, (1) a careful preoperative evaluation
of the anatomy, including the presence of any possible vascular and/or bronchial anomalies, is necessary, and (2) if any anatomical
structures cannot be determined intraoperatively, a conversion into an open procedure must immediately be undertaken. 相似文献
55.
目的:临床观察纵隔镜检查在胸部疑难疾病诊断中的作用。方法:使用德国STORZ公司生产的纵隔镜,对17例临床不能确诊的影像学检查发现的纵隔肿物或淋巴结施行标准的经颈纵隔镜检查术。结果:本组均获得了明确的病理诊断,其中良性病变88.2%(15/17),包括结节病9例,淋巴结结核5例,巨大淋巴结增生症1例,而2例恶性肿物均为肺小细胞未分化癌。结论:纵隔镜对原因不明的纵隔肿物或结节的诊断有着重要意义,可使一些结节病或淋巴结结核的患者得到及时正确的诊断,使这部分患者避免了盲目的试验性放、化疗或开胸探查所带来的痛苦。 相似文献
56.
Rounded atelectasis, a rare, benign mass lesion, is most often seen in association with asbestos-related pleural changes. Often a presumptive diagnosis can be made on the basis of characteristic CT and chest radiographic findings. However, not infrequently radiographic imaging fails to differentiate rounded atelectasis from primary bronchogenic carcinoma, a disease which is seen with increased frequency in patients with asbestos exposure. We describe two cases where the diagnosis of rounded atelectasis was made by fine-needle aspiration (FNA) cytology. The cytologic features included abundant pulmonary parenchymal material with thickened alveolar walls containing pulmonary macrophages and connective tissue. It is important to realize that this is a useful positive finding indicating rounded atelectasis, rather than a negative finding suggesting the absence of neoplasm. Needles with a cutting action may be necessary to obtain sufficient material to make the diagnosis of rounded atelectasis. 相似文献
57.
Francesco Franceschi Umile Giuseppe Longo Laura Ruzzini Paolo Simoni Bruno Beomonte Zobel Vincenzo Denaro 《Knee surgery, sports traumatology, arthroscopy》2007,15(3):266-268
Bilateral discoid medial menisci is an extremely rare condition of the knee and it can be associated to other pathological
findings, including anterior portion cyst formation. We report on the clinical features, radiographic findings, treatment
and results of one patient who presented a bilateral medial discoid meniscus combined with posterior portion cyst of the left
knee. To the best of the author’s knowledge, this is the first case of bilateral medial discoid meniscus associated with posterior
portion cyst formation. 相似文献
58.
59.
胃网膜右动脉与胸廓内动脉在冠状动脉旁路术中应用的比较研究 总被引:1,自引:0,他引:1
目的:为将胃网膜右动脉应用于冠状动脉旁路术提供依据。方法:观测了38具成人尸体的胃网膜后动脉和胸廓内动脉,并对其中30例进行了组织学观察及体视学计量。 相似文献
60.
目的探索使用安全、有效的胸导管阻断方法,以减少或避免食管癌手术后乳糜胸的发生.方法在熟悉胸导管解剖结构基础上,低位明视结扎之,近期使用染色技术使胸导管更易辨认,确定其形态并确定无遗漏后结扎.术后观察效果.结果文献报告食管癌术后乳糜胸的发生率为0.4~2.6%,本组280例术后无1例发生乳糜胸.结论食管癌手术中胸导管阻断应低位、明视、准确结扎,使用染色技术更易辨认.凡主动脉弓以上食管胃吻合者,均应便用胸导管阻断技术以进免术后乳糜胸的发生。 相似文献