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21.
弱激光血疗法的发展及展望 总被引:3,自引:1,他引:2
本文主要介绍了弱激光血疗的机制及其在我国的发展过程.弱激光血疗法起源于前苏联的紫外光量子疗法,传入我国后经历了静脉内照射疗法,离体血液激光照射回输疗法,口咽部照射伴吸氧疗法,鼻腔内照射疗法等.本文对各种疗法的特点及临床应用进行了详细叙述.有些学者认为,中医的观点也能揭示激光血疗的机制.从中医辨证的角度,人的体质分为虚证和实证.结合中医针灸的虚则补之,实则泻之的原理,根据患者的虚实状况,采用含有中医补泻信息的调制激光照射血液,同时加照相关敏感穴位,促进疗效,以体现中医的辨证施治的原则可取得更好的疗效. 相似文献
22.
颈动脉支架置入术治疗颈动脉狭窄 总被引:23,自引:2,他引:21
颈动脉支架置入术(CS)作为一种治疗颈动脉狭窄(CAS)的新方法,与传统的颈动脉内膜剥离术相比较,具有易操作、创伤小、并发症低等优点,作者就CS的现状、操作方法及并发症处理作一综述。 相似文献
23.
颈动脉狭窄会导致患者远期认知功能下降,而既往研究表明颈动脉内膜剥脱术和支架
置入术作为治疗颈动脉狭窄的主要术式,可以改善患者的认知功能,尤其是执行能力等特定领域的
认知水平。进一步研究发现颈动脉血管重建术中栓子的形成,术后脑血流灌注提高,以及神经代谢
水平等改变可能在机制上解释颈动脉重建术后认知功能的变化;此外,围术期炎症反应,血脂水平,
以及基因易感性等都是术后远期认知功能结局的临床预测因素,以上因素对于提高颈动脉狭窄患者
的生活质量、治疗术式的优化具有重要临床意义。 相似文献
24.
25.
26.
颅内动脉瘤血管内栓塞治疗及并发症分析 总被引:3,自引:0,他引:3
目的 探讨血管内栓塞治疗破裂后颅内动脉瘤及并发症发生机制及防治对策.方法 对76例破裂后颅内动脉瘤采用早期血管内栓塞治疗,回顾性分析发生的并发症原因及防治方法.结果 76例动脉瘤患者发生并发症8例,占10.5%.其中动脉痉挛3例,弹簧圈提前解脱1例,弹簧圈脱落1例,术中动脉瘤破裂1例,术后1周动脉瘤再次破裂死亡1例,大脑中动脉血栓形成1例.结论 正确理解并发症发生机制和熟练掌握操作技术是控制颅内动脉瘤血管内栓塞治疗并发症的关键.恰当的处理可避免严重后果. 相似文献
27.
M. Antonelli M. L. Moro R. R. D'Errico G. Conti M. Bufi A. Gasparetto 《Intensive care medicine》1996,22(8):735-741
Objective The aim of this study was to identify risk factors and to describe epidemiological patterns for early—(EOB) and late—onset bacteremias (LOB) after trauma.Design A prospective study conducted on 141 consecutive trauma patients.Setting A general intensive care unit (ICU) of a university hospital.Patients All multiple trauma patients admitted to our general intensive care unit (ICU) from December 1990 to May 1992 were prospectively enrolled in the study. The following information was collected for each patient and recorded in a computer database: demography, severity of trauma according to the Abbreviated Injury Scale (AIS), severtity of trauma according to the Glasgow Coma Scale (GCS), presence of pneumothorax, pulmonary contusion, rib fractures, hemothorax, and abdominal trauma, use of mechanical ventilation, and placement of central venous catheters. Bacteremias were defined as EOB when onset occurred within 96 h after trauma, and as LOB when appearing after 96 h from trauma.Results Thirty-seven patients developed bacteremia during their ICU stay (26%): 11 (29.7%) EOB and 26 (70.3%) LOB. Gram-positive cocci were isolated more frequently in EOB than in LOB (x
2=4.1,P=0.04). The risk of EOB was significantly increased by the presence of pulmonary contusion [relative risk (RR) 15.0; confidence interval (CI) 1.99-113.25], pneumonia before the onset of bacteremia (RR 3.56; CI 1.17-10.69), AIS score greater than 32 and an abdominal injury score greater than 9 (RR 3.11; CI 1.02-9.49), while intravascular catheters and mechanical ventilation did not represent risk factors for EOB. LOB had a very different pattern and their risk was significantly increased by exposure to intravascular catheters (RR 4.96; CI 1.23-19.94) and to mechanical ventilation lasting more than 7 days (RR 3.6; CI 1.6-8.1).Conclusions Scoring with the AIS of the abdominal and thoracic trauma at admission to the ICU appears a useful tool for identifying trauma patients at increased risk of EOB. A rigorous policy of catheter placement and maintenance as a means of reducing late bacteremias in trauma patients is essential. 相似文献
28.
It has been believed that the primary arterial trunk of the mammalian forelimb is derived from the 7th intersegmental artery.
Here we examined the early morphogenesis of the arteries and nerves in the forelimb region by adopting a method that combined
intravascular dye-injection with nerve staining to whole mounted rat embryos. The study was carried out on greater numbers
of specimens at smaller intervals of embryonic stages and from earlier stages than those in previous reports. We report that:
(1) The multiple primary arterial trunks in the forelimb region (primary subclavians) originate directly from the lateral
surface of the dorsal aorta independently of the intersegmental arteries, previous to the formation of limb buds. (2) The
tips of the 8th (and the 9th) primary subclavians that originate from the aorta near the origin of the 8th (or the 9th) intersegmental
artery bend cranially and/or caudally. With the formation of limb bud, they extend to form the longitudinal trunks in the
presumptive axillary region. The primary arteries in the free arm region branch off from this longitudinal trunk, and one
of them develops into the axial artery. (3) The origins of the primary subclavians shift their positions on the surface of
the dorsal aorta and approach the origins of the neighboring intersegmental arteries to join them, and then replace the latter.
Consequently, the primary subclavians appear to be ”the lateral branches of the in tersegmental arteries.” (4) The 8th primary
subclavian is dominant at first, but is replaced by the 7th primary subclavian, which develops into the definitive subclavian
artery. (5) With the brachial nerve plexus formation, the axillary arterial plexus derived from the longitudinal trunk develops
to form two stems of the axillary artery.
Accepted: 15 April 1999 相似文献
29.
S. Zhang G. Wright M. A. Kingston P. Rolfe 《Medical & biological engineering & computing》1996,34(4):313-315
The first in vivo evaluation of a pO2 sensor constructed with a novel copolymer is described. The performance of the sensor is assessed under dynamic conditions
in vitro and in vivo. This sensor is more stable and reliable than the control sensor with a heparintreated polyethylene membrane. 相似文献
30.
低能量激光血管内照射治疗脑梗死的临床观察 总被引:3,自引:0,他引:3
目的:探讨采用低能量半导体激光血管内照射疗法(intravascular laser irradiation on blood,ILIB)治疗脑梗死的效果及机制.方法:随机选取80例脑梗死患者分为治疗组与对照组,两组各40例,两组患者接受同样的药物治疗,治疗组在上述治疗的基础上,于发病1 d~3 d内,加用半导体激光血管内照射治疗.采用国产半导体激光治疗仪,波长650nm,功率1.5mW~2.0mW.患者平卧,消毒后用静脉留置针穿刺上肢正中静脉或贵要静脉,成功后留置外套管,通过管脑导入激光剂,开启半导体激光治疗仪进行照射治疗.结果:治疗组有效率92.5%,与对照组差异有显著性意义(p<0.01),治疗组患者临床症状和体征治疗后明显改善.结论:该疗法有调节脂质代谢,改善血液流变学性质,恢复神经传导功能等功效,进而提高脑梗死的治疗效果. 相似文献