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排序方式: 共有897条查询结果,搜索用时 31 毫秒
1.
2.
J. M. Bellón N. García-Honduvilla N. Serrano M. Rodríguez G. Pascual J. Buján 《Hernia》2005,9(4):338-343
The component of a composite prosthesis, which makes contact with the visceral peritoneum, can be reabsorbable or non-reabsorbable,
and laminar or reticular. This study was designed to determine whether the composition of this second, barrier component could
improve its behavior at this interface. Abdominal wall defects in rabbits were repaired using a polypropylene prosthesis (PP),
or the composites Sepramesh (PP+h) or Vicryl (PP+v). Fourteen days after surgery, the implants were evaluated by light and
scanning electron microscopy, and immunohistochemistry. Prosthetic areas occupied by adhesions (PP: 71.08±5.09, PP+h: 18.55±4.96,
P+v: 69.69±16.81%), neoperitoneal thickness (PP: 256.17±21.68, PP+h: 83.11±19.63, PP+v:213.72±35.90 μm) and macrophage counts
(PP: 8.73±1.16, PP+h: 27.33±4.13, PP+v: 31.24±3.08%) showed significant differences (P<0.05). The tested biomaterials induced an optimal recipient tissue infiltration. Least adhesion formation was observed on
the PP+h implants. This suggests that the second component, although reabsorbable, should be smooth in structure. 相似文献
3.
The intercostal hernia of the lung is a very rare extraordinary disease that requires operation because of the complaints
and potential complications. The authors review cases of their operations and analyze the subsequence and treatment. Three
patients have been treated for intercostal lung hernia in our treatment. The causes of this disease were a previous thoracotomy
in one case and fits of coughing in the other two cases. The diagnosis was set up on the grounds of the specific clinical
symptoms, thoracic X-ray and CT scan. The hernia was dissolved with percostal stitches and with the suture of the thoracic
musculature in two cases. Plastic operation of the thoracic wall by implanting a polypropylene surgical mesh (Prolen, Ethicon,
Johnson & Johnson) was performed in the case of the third patient and later in the first two patients due to recrudescence.
In one case the authors were constrained to resect the dystelectasial lung in the hernial sac. The three patients had been
operated five times. Relapse of hernia was detected in two patients, in whom the intercostal space had been reconstructed
with percostal stitches. We did not detect any relapsing in those two patients at 33 and 66 months after the second operation
with mesh implantation. The third patient who got mesh implant immediately did not relapse 12 months after the operation.
Intercostal lung hernia is an indication of operation. A plastic operation of the thoracic wall combined with the implantation
of a surgical mesh is recommended to close the hernial orifice, which is suitable for treating both primary and relapsed hernias.
Recurrence is rare in those patients treated with this method. 相似文献
4.
5.
Ileocutaneous fistula formation following laparoscopic polypropylene mesh hernia repair 总被引:6,自引:1,他引:5
A rare case of enterocutaneous fistula caused by chronic erosion of polypropylene mesh after laparoscopic repair of a recurrent
inguinal hernia is described. Successful treatment was achieved by fistulectomy, total resection of the implanted mesh, and
small-bowel segmental resection. The patient recovered well postoperatively, and at follow-up 18 months later, the herniorrhaphy
has remained intact. This complication needs to be added to the differential diagnosis in patients who present inflammation,
abscess formation, or cutaneous fistula following laparoscopic hernia repair.
Received: 7 October 1996/Accepted: 14 October 1996 相似文献
6.
Kamran Sardari 《Comparative clinical pathology》2007,16(2):97-102
Local injection of a mixture of beta-aminopropionitril fumarate (BAPN-f) and sodium hyaluronate (NaH+) together with controlled exercise were evaluated for treatment of superficial digital flexor tendon (SDFT) injuries in horses.
Fourteen mixed breed horses with subacute SDF tendon injuries in forelimbs were randomly assigned to two groups. One group
received BAPN-f (0.7 mg/ml) and the other received NaH+ (10 mg/ml) all by intratendinous injection. Controlled exercise started during the first week after intratendinous treatment
and continued for 12 weeks. Cross-sectional area (CSA) of the SDFT, diameter of the SDFT, and relative area of the lesion
(presence of CSA) were measured by ultrasonographic examination. Lesions were semiquantitatively graded for echogenicity on
a scale of 0 to 4. The lesion severity in CSA was significantly reduced by BAPN and NaH compared to those horses treated by
BAPN only (p < 0.05). Lesion echogenicity score was significantly higher in horses treated with BAPN and NaH+ at day 0 compared to horses treated with BAPN (p < 0.05). At the end of the study, lesion echogenicity score was significantly reduced in the horses treated with BAPN and
NaH+ compared to horses treated by BAPN only (p < 0.05). According to the results of the present study, a combination of BAPN-f and NaH+ has a greater beneficial effect on tendon healing and remodeling in horses, as assessed by sonographic examination, compared
to treatment with single drugs. 相似文献
7.
介绍了“四川联大Ⅰ型”(以下简称:SUUⅠ)管外流式(ELF)中空纤维膜式氧合器的研制、设计、外形制做及离心封端等过程,重点介绍了中空纤维膜材料选择,膜肺离心封端的原理、材料、设备及方法,并对聚氨酯胶进行离心封端的具体步聚作了较详细的叙述。作者根据自身在国外与国内的研制经验,认为离心封端的关键在于:(1)中空纤维膜材料的质量及成束质量;(2)聚氨酯封端胶材料固化特性的掌握及料量计算;(3)反应温度控制;(4)气体排除;(5)转速的控制;(6)纤维束的安装;(7)脱模和切头的时间掌握等方面。作者用外购的材料和自己设计制造的离心封端机成功地制造了我国第一个管外流式(ELF)中空纤维成人氧合器。SUUⅠ膜式氧合器的设计是作者在国外建立的交叉流式膜肺O2、CO2传递模型的具体应用。 相似文献
8.
Chen M Bennedsen M Zhai L Kharazmi A 《APMIS : acta pathologica, microbiologica, et immunologica Scandinavica》2001,109(12):801-808
A 65 kD membrane-associated NADH-fumarate reductase subunit, which has a molecular weight similar to that of one of the enzyme subunits from bacteria, was purified from Leishmania donovani promastigotes. NADH-fumarate reductase and other mitochondrial enzymatic activities of L. major and L. donovani promastigotes and amastigotes were investigated. The presence of NADH-fumarate reductase was demonstrated in digitonin-permeabilized L. major promastigotes and mitochondria of L. major and L. donovani promastigotes and amastigotes. The activity of solubilized NADH-fumarate reductase was measured in L. major and L. donovani promastigotes. Succinate exhibited a clear concentration-dependent inhibitory effect on fumarate reductase, whereas fumarate also exhibited a clear concentration-dependent inhibitory effect on succinate dehydrogenase. The data indicate that fumarate reductase is an obligatory component of the respiratory chain of the parasite. Since the enzyme is an important component in the intermediate metabolism in the Leishmania parasite and is absent in mammalian cells, it could be a potential target for antileishmanial drugs. 相似文献
9.
10.
Alessia Cimadamore Liang Cheng Marina Scarpelli Francesco Massari Veronica Mollica Matteo Santoni Antonio Lopez-Beltran Rodolfo Montironi Holger Moch 《Translational andrology and urology》2021,10(3):1506
In 1952, renal cell carcinomas had been divided into 2 categories—clear cell or granular cell—depending upon their cytoplasmic staining characteristics. In the following years, the inventory of renal epithelial tumors has expanded by the addition of tumors named by their architectural pattern (i.e., papillary RCC, tubulocystic RCC), anatomic location (i.e., collecting duct carcinoma, renal medullary carcinoma), associated diseases (i.e., acquired cystic disease-associated RCCs). With the extensive application of molecular diagnostic techniques, it becomes possible to detect genetic distinctions between various types of renal neoplasm and discover new entities, otherwise misdiagnosed or diagnosed as unclassified RCC. Some tumors such as ALK rearrangement-associated RCC, MiT family translocation renal carcinomas, SDH-deficient renal cancer or FH-deficient RCC, are defined by their molecular characteristics. The most recent World Health Organization (WHO) classification of renal neoplasms account for more than 50 entities and provisional entities. New entities might be included in the upcoming WHO classification. The aim of this review is to summarise and discuss the newly acquired data and evidence on the clinical, pathological, molecular features and on the prognosis of new RCC entities, which will hopefully increase the awareness and the acceptance of these entities among clinicians and improve prognostication for individual patients. 相似文献