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81.
脊柱放线菌感染并发脊髓压迫症(附3例报告) 总被引:1,自引:0,他引:1
目的探讨脊柱放线菌感染并发脊髓压迫症的临床和影像学特点及治疗方法。方法回顾性分析3例经病理检查证实的本病患者的临床资料。结果3例患者均有颈、胸脊椎及软组织感染和脊髓压迫症状;MRI示病变椎体骨质破坏,颈、胸硬膜外软组织肿块,脊髓受压。病理学检查组织病理学检查证实3例均为放线菌感染,2例表现为炎性肉芽组织伴微脓肿形成,另1例表现为硬膜外脓肿。均予以脓肿清除、脊髓减压术,并给予4~8周大剂量青霉素G静脉滴注,后改口服维持4~6个月,术后及随访3例患者均取得显著的疗效。结论脊柱放线菌感染并发脊髓压迫症临床和影像学表现无特征性,其确诊依赖于病理学和微生物学检查。脓肿引流、椎管内减压术和大剂量抗生素治疗有效。 相似文献
82.
改良Hardinge入路在非骨水泥全髋置换术中的应用 总被引:2,自引:1,他引:1
目的:对改良Hardinge入路行全髋置换进行评价。方法:对经改良Hardinge入路行非骨水泥全髋置换(THR-CL)术并获术后6个月以上随访的32例病人进行总结。结果:优良28例(88%),很好4例(12%),其中轻度跛行6例(19%),下肢不等长>2cm1例(3%),改良Trendelenburg试验阳性3例(10%)。结论:此入路创伤小,暴露好,利于假体定位,易于控制下肢长度,术后外展肌功能恢复快。 相似文献
83.
84.
本文报告了1990年5月以来脑干区大型、复杂占位病变15例.其中,位于脑干内3例,脚间窝2例,岩尖部4例,全岩骨区1例,全斜坡区2例,第四脑室内3例.本组采用以扩大了的岩骨入路为主的联合入路,行肿瘤全切除8例,次全切除5例.2例仅作了活检加减压术.除1例死亡外,均恢复良好.本文结合文献,对脑干区手术入路进行了讨论. 相似文献
85.
86.
Enkephalin mRNA production by cochlear and vestibular efferent neurons in the gerbil brainstem 总被引:1,自引:0,他引:1
A. F. Ryan D. M. Simmons A. G. Watts L. W. Swanson 《Experimental brain research. Experimentelle Hirnforschung. Expérimentation cérébrale》1991,87(2):259-267
Summary Preproenkephalin mRNA production by efferent neurons projecting to the gerbil inner ear was assessed using combined in situ hybridization and retrograde labeling with florescent tracers. Virtually all vestibular efferent neurons were positive for preproenkephalin mRNA. Of the cochlear efferents, one-half of the medial olivocochlear neurons were positive for enkephalin. All lateral olivocochlear neurons were negative for enkephalin. The results suggest that there are two, biochemically distinct subpopulations of medial olivocochlear efferents in the gerbil.
Offprint requests to: Division of Otolaryngology, ENT, V-112C 相似文献
87.
Enhanced stimulus-reward learning by intra-amygdala administration of a D3 dopamine receptor agonist
The amygdala is considered to be a critical neural substrate underlying the formation of stimulus-reward associations, and
is known to receive substantial innervation from dopaminergic neurons located within the ventral mesencephalon. However, relat-
ively little is known about the function of the mesoamygdaloid dopamine projection in stimulus-reward learning. Recently,
we have found post-session intra-amygdala microinjections of d-amphetamine to enhance appetitive Pavlovian conditioning as assessed in a discriminative approach task. In the present study,
we have examined the effects of dopamine receptor agonists possessing relative selectivity for the D1, D2 and D3 receptor subtypes in order to examine more fully the role of the mesoamygdaloid dopamine projection in stimulus-reward learning.
Thus, subjects were trained to associate an initially neutral stimulus (CS+) with 10% sucrose reward (US). A second, control stimulus (CS−) was also presented but never paired with sucrose reward. In order to measure specifically the conditioned response to CS+/CS− presentation, responding during CS and US presentations was measured separately. Immediately following each training session,
subjects received bilateral intra-amygdala infusion of 0.1, 1 or 10 nmol/side of SKF-38393, quinpirole or 7-OH-DPAT. Infusions
of SKF-38393 or quinpirole were without effect on CS+ approach. However, post-session intra-amygdala infusions of 7-OH-DPAT enhanced selectively CS+ approach in a dose-dependent fashion. No dose of any drug affected CS−approach, US behaviours, or measures of extraneous behaviour. Subsequent acquisition of a novel conditioned instrumental response
was also unaffected. Thus, the present data indicate a selective involvement of the D3 dopamine receptor subtype in the modulation of stimulus-reward learning by the mesoamygdaloid dopamine projection.
Received: 12 December 1996 / Final version: 9 April 1997 相似文献
88.
We present a patient with vertebrobasilar insufficiency, with vertigo and horizontal nystagmus, induced by turning the head to the right. Angiography demonstrated transient occlusion of the left vertebral artery at the atlantoaxial joint during rotation of the head. The pathogenesis and angiographic findings are discussed. 相似文献
89.
90.
Background: Laparoscopic stapling was found to be a viable option for attaching epimysial electrodes onto the abdominal surface of the
diaphragm. Stapling was preferable to suturing due to its simplicity and speed.
Methods: Of the two staplers tested in this study, the Ethicon Endopath was preferred over the Autosuture Endo Hernia because the
staples did not penetrate the diaphragm when an electrode tab thickness greater than 0.75 mm was used.
Results: The thickness of the electrode tab was an important factor in determining staple penetration but large variation in penetration
depth indicated that other factors may also play a role. An electrode tab thickness of 1.0–1.25 mm was suggested to minimize
the risk of diaphragm perforation.
Conclusions: The histological reaction to staples implanted up to 14 months was unremarkable, reflecting the safety of laparoscopic staples
for permanently anchoring electrodes on the diaphragm.
Received: 2 April 1996/Accepted: 12 June 1996 相似文献