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61.
1985~1993年对43例脑血管病及脑肿瘤患者应用介入神经放射治疗方法进行了51次治疗,包括外伤性颈内动脉海绵窦瘘的球囊栓塞治疗8例;脑、脊髓血管畸形的栓塞治疗17例;各种脑肿瘤术前栓塞7例;经皮穿刺血管内成型治疗脑供血动脉狭窄3例和脑胶质瘤超选择化疗8例,效果良好,介入神经放射治疗已成为重要的临床治疗手段,是某些脑血管疾病的首选治疗方法。 相似文献
62.
P. D. Nottle 《ANZ journal of surgery》1992,62(3):188-192
The indications, contraindications and complications of percutaneous laparoscopic cholecystectomy (PLC) were established from a group of 308 patients referred for cholecystectomy. Of the 308 patients 86% underwent PLC, 5% were commenced laparoscopically, but converted to open cholecystectomy and 9% were performed as open cholecystectomy from the outset. Complications included two bile leaks from the gall-bladder bed, one cystic duct stump leak and three retained stones. Pre-operative rather than intra-operative duct imaging was used so that common duct stones could be removed before operation. PLC is a safe procedure that has now become the standard technique for cholecystectomy. 相似文献
63.
本文报告经皮球囊二尖瓣成形术治疗二尖瓣狭窄12例。10例术前平均左房压为18mmHg~40mmHg(26.7±7.15mmHg),术后即刻为4mmHg~18mmHg(10.6±3.86mmHg)P<0.01。跨瓣压差术前10mmHg~40mmHg(19.6±9.05mmHg),术后为0~5mmHg(2.65±2.21mmHg)P<0.01。1例失败,1例术后发生二尖瓣关闭不全急性左心衰竭死亡。 相似文献
64.
Emad Dean Nukta Bernhard Meier Philip Urban Thierry Muller Pierre A. Dorsaz Josiane Favre 《Catheterization and cardiovascular interventions》1992,25(4):272-277
The Magnum system, initially designed for coronary angioplasty (PTCA) of chronic total occlusion, consists of a balloon catheter and a solid steel 0.021 inch (0.53 mm) steerable and removable wire with a soft and moldable distal portion, tipped with a 1 mm olive. To evaluate its performance in routine PTCA, 200 unselected consecutive patients were randomized to two equal groups, i.e., group Magnum (100 patients, 115 vessels) and group Standard (100 patients, 118 vessels) including 18 and 21 patients with chronic total occlusions, respectively. Randomization was performed by the sealed envelope system in the catheterization laboratory and crossover of system was imposed if it was not possible to place a balloon correctly within 20 min of fluoroscopy time. There were no significant differences between groups concerning clinical and angiographic baseline characteristics, size of initial balloons (3.0±0.3 mm in both groups), fluoroscopy time to cross the lesion with the wire (Magnum: 4±5, Standard: 5±6 min), total fluoroscopy time (Magnum: 11 ± 9, Standard: 12±12 min), and need for crossover (Magnum: 10%, Standard: 16%). Success rates per lesion were comparable with 90% in group Magnum and 84% in group Standard, as were the complications with one inhospital death in group Standard, occurring three weeks after PTCA and stent implantation. There was no emergency operation. Six patients per group had myocardial infarction of whom two in group Magnum and one in group Standard developed a Q-wave. The following variables were significantly in favor of the Magnum system compared with the Standard system: success rate in nontotal lesions (97% versus 90%) crossover success in total occlusions (0 vs. 33%), fluoroscopy time to cross the lesion with the balloon once the wire was in place (1 ± 2 vs. 2 ± 4 min), and use of a single versus 1.2±0.5 wires per lesion. The only advantage of the Standard systems was the more common use of 7 French guiding catheters (Magnum: 40%, Standard: 53%, p = 0.09). The Magnum system compares favorably with standard systems for routine PTCA. The robust design of the Magnum wire does not impair ease of placement and safety but saves material and facilitates balloon advancement across the lesion. 相似文献
65.
A membrane-coated fiber (MCF) array approach was developed for quantitative assessment of skin absorption from chemical mixtures, which was based on the similarity in the absorption mechanisms of the MCF membrane and the stratum corneum of the skin. A set of probe compounds were used to detect the relative molecular interaction strengths of chemicals with the vehicle and the membranes, which provided a linkage between the skin permeability (log k) and MCF partition coefficients (log KF). A predictive model was established via multiple linear regression analysis of the data matrix of experimentally measured log k value and log KFm values; log k=a0+a1 log KF1+a2 log KF2+...+an log KFm, where m is the number of diverse MCFs. Twenty-five probe compounds and three MCFs (polydimethylsiloxane for lipophilic, polyacrylate for polarizable, and CarboWax for polar interactions) were used to demonstrate the model development processes in the MCF array approach. The skin permeability of the probe compounds was measured with conventional diffusion cell experiments using dermatomed porcine skin. Three predictive models were established for skin permeability prediction from chemical mixtures in water, 50% ethanol, and 1% sodium lauryl sulfate (SLS) with R2 values of 93, 91, and 83, respectively. The log k and log KF values were considerably altered by the addition of ethanol or SLS into the dose vehicle; however, their correlations to skin permeability remained strong under various conditions. These results suggested that the experimentally based MCF array approach can be used to predict skin absorption from chemical mixtures in different vehicles or formulations. 相似文献
66.
Ten patients with subhepatic fluid collections complicating laparoscopic Cholecystectomy were successfully treated by interventional radiological procedures. The series included five abscesses, three hematomas, one biloma, and one serous collection. Abdominal pain or fever developed from 3 to 21 days after the laparoscopic intervention. All patients were asymptomatic 72 h after percutaneous drainage and there were no complications related to the procedure. Subhepatic fluid accumulations are common findings after laparoscopic cholecystectomies and have been considered an unreliable indicator of infection or other postoperative complications. However, the significance of these collections should not be underestimated in symptomatic patients. In such cases we propose diagnostic aspiration and drainage, when necessary, to safely and promptly establish the precise diagnosis and treatment. More serious complications can be avoided by early percutaneous intervention. 相似文献
67.
目的:评价经皮顺行交锁钉治疗股骨干骨折的临床疗效.方法:对79例82处股骨干骨折采用髋部小切口经皮顺行交锁钉治疗,观察疗效.结果:75例(92%)获得了良好的解剖对位并达到一期愈合,6例(8%)迟缓愈合.另外,由于再次手术1例(1%)发生了深部感染.失血量较少(平均小于100 mL),切口平均长25 mm.1年后随访只有10%髋部疼痛.结论:与传统手术方式相比,经皮技术术中出血少、对周围组织创伤少,是一个安全又有效的方法. 相似文献
68.
Edward McNulty Joshua Cohen Tony Chou Kendrick Shunk 《Catheterization and cardiovascular interventions》2006,67(1):46-48
We present two patients with angulated, proximal left circumflex lesions, one a chronic total occlusion and one an acute subtotal occlusion. In both cases, use of the deflectable tip Venture Catheter (Velocimed, Minneapolis, MN) facilitated guide wire passage and successful percutaneous coronary intervention (PCI) after prior attempts at guide wire passage with standard wires were unsuccessful. 相似文献
69.
Bošnjaković Petar Ivković Tomislav Ilić Miodrag Aracki Snežana 《Cardiovascular and interventional radiology》1992,15(4):217-220
Flexible tantalum stents (Strecker) were used as an adjunct to percutaneous transluminal angioplasty (PTA) in the treatment
of stenotic arterial or venous limbs of Brescia-Cimino hemodialysis fistulas. The diagnostic procedure was performed using
retrograde fistulography. After PTA with unsatisfactory results, stents were placed in 5 patients with significant residual
stenoses and poor fistula function. Within the mean follow-up period of 6.4 months (range 3–10 months) all fistulas were functioning.
We conclude that Strecker stent is useful in the treatment of stenotic hemodialysis arteriovenous fistulas as an adjunct to
PTA. 相似文献
70.