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Can we predict postprocedural paravalvular leak after Edwards SAPIEN transcatheter aortic valve implantation? 下载免费PDF全文
Yusuke Watanabe MD Thierry Lefèvre MD Takahide Arai MD PhD Kentaro Hayashida MD PhD Erik Bouvier MD Thomas Hovasse MD Mauro Romano MD Bernard Chevalier MD Philippe Garot MD Patrick Donzeau‐Gouge MD Arnaud Farge MD Bertrand Cormier MD Marie‐Claude Morice MD 《Catheterization and cardiovascular interventions》2015,86(1):144-151
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Okuzawa A Kobayashi S Sakamoto K Uchida Y Suzuki Y Ono K Seki E Tomiki Y Iwanuma Y Hayashida Y Kamano T Tsurumaru M 《Journal of gastroenterology》2000,35(9):717-720
Gastrinoma is a rare endocrine tumor that is frequently associated with liver metastasis. The liver metastasis is usually
seen simultaneously or soon after a primary operation. A 47-year-old woman who had had a total gastrectomy 20 years earlier
developed liver metastasis. An interval of this length between surgery and metastasis is extremely rare. The total gastrectomy
prevented the patient from developing the usual symptoms of hypergastrinemia that would have enabled early diagnosis of the
metastasis. Laboratory examinations on admission revealed a high serum gastrin concentration (1500 pg/ml). Computed tomography
showed an irregularly enhanced mass lesion with an uneven, low-density central area in the right anterior inferior segment
of the liver. An extended right hepatectomy was performed. Intraoperative ultrasonography showed no abnormalities in the remnant
pancreas. Examination of the cut surface of the specimen revealed a yellow, firm, elastic tumor, 55 mm in diameter. The interior
of the tumor appeared necrotic. Histopathologically, the tumor was composed of cells with hyperchromatic, dysplastic nuclei
arranged in a trabecular pattern with nest formation. Gastrin staining was positive. A histologic diagnosis of metastatic
gastrinoma was made. The patient's gastrin concentration returned to normal and she was well at 2-year follow-up.
Received: August 19, 1999 / Accepted: January 28, 2000 相似文献
35.
Bartlett AH Foster TJ Hayashida A Park PW 《The Journal of infectious diseases》2008,198(10):1529-1535
BACKGROUND: Staphylococcus aureus alpha-toxin is a major virulence factor, but its mechanism of action in vivo is incompletely understood. METHODS: We examined the role of alpha-toxin in S. aureus pneumonia using the mouse model of intranasal lung infection with S. aureus strain 8325-4 (hla(+) S. aureus) and an alpha-toxin-deficient mutant strain made on the 8325-4 background (hla(-) S. aureus). RESULTS: Intranasal infection of mice with hla(-) S. aureus resulted in substantially less lung injury and inflammation, pulmonary edema, and tissue bacterial burden than did infection with hla(+) S. aureus. Furthermore, fewer mice infected with hla(-) S. aureus died of the infection, compared with those infected with hla(+) S. aureus. Levels of the CXC chemokines keratinocyte-derived chemokine and macrophage inflammatory protein-2 were significantly lower in the airways of mice infected with hla(-) S. aureus, and this difference was the result of reduced secretion of newly synthesized chemokines into the airway. Consistent with these data, significantly fewer neutrophils were present in the airways and lungs of mice infected with hla(-) S. aureus, compared with those infected with hla(+) S. aureus. CONCLUSIONS: These data suggest that alpha-toxin enhances virulence by facilitating the generation of CXC chemokine gradients and stimulating chemokine-induced neutrophil influx in S. aureus pneumonia. 相似文献
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Tayama E Kawano H Takaseya T Hiratsuka R Oda T Hayashida N Fukunaga S Aoyagi S 《Japanese circulation journal》2001,65(4):257-260
A more durable mechanical valve may be a better choice for the tricuspid position than a bioprosthesis when the patient already has mechanical prosthesis in the left side of the heart. Eleven cases of triple valve replacement (total follow-up period, 49.5 patient years), all with mechanical valves, are reviewed to assess optimal valve selection. Nine patients had undergone a total of 12 previous cardiac surgeries. Three patients died in hospital (27.3%), but there were no late deaths among the survivors. Two cases of valve thrombosis in the tricuspid position occurred (linearized incidence: 4.04%/patient years) and 1 of these required reoperation. Because of this high incidence of valve thrombosis, the bileaflet mechanical valve is not considered to be the best choice. Even if mechanical valves are implanted in the left side of the heart, a bioprosthesis may be a better choice at the tricuspid position. 相似文献
37.
Familial dwarfism due to a novel mutation of the growth hormone-releasing hormone receptor gene 总被引:7,自引:0,他引:7
Salvatori R Hayashida CY Aguiar-Oliveira MH Phillips JA Souza AH Gondo RG Toledo SP Conceicão MM Prince M Maheshwari HG Baumann G Levine MA 《The Journal of clinical endocrinology and metabolism》1999,84(3):917-923
Isolated growth hormone (GH) deficiency (IGHD) is a rare cause of short stature. The same mutation of the gene encoding the growth hormone-releasing hormone receptor (GHRHR) has been identified as the basis for IGHD in three families from the Indian subcontinent. The prevalence and heterogeneity of defects in the GHRHR gene are not known. Twenty-two dwarf members of a large, extended kindred containing at least 105 affected members with autosomal recessive short stature underwent extensive endocrine evaluation, which confirmed markedly reduced or undetectable serum concentrations of GH that did not increase in response to different stimuli. DNA sequences of the 13 exons and intron-exon boundaries of the GHRHR gene were determined in an index patient. A novel homozygous 5' splice site mutation (G-->A at position +1) in IVS1 was found. Thirty of the affected subjects tested were homozygous for this mutation, and 64 clinically unaffected patients were either heterozygous for the mutation (n = 41, including 9 obligate carriers) or homozygous for the wild-type sequence (n = 23). We describe a novel mutation in the GHRHR gene as cause of dwarfism in the largest kindred with familial IGHD described to date. 相似文献
38.
Shirou Kuwabara Tadashi Nishimaki Yoichi Ajioka Shintarou Komukai Tsutomu Suzuki Hidenobu Watanabe Katsuyoshi Hatakeyama 《Digestive diseases and sciences》1998,43(8):1675-1677
It is well known that squamous carcinomasfrequently develop multifocally, either synchronously ormetachronously, in the upper aerodigestive tract (1).Such phenomena were first reported by Slaughter et al in 1953, and they were named fieldcancerization (2). Using recent molecular biologytechniques, these multiple carcinomas have been revealedto arise from independent origins (3). Esophagealcarcinomas have been reported to frequently metastasize tothe lymph nodes even at the early stage of tumorextension (4). Furthermore, simultaneous multifocalcancer development is not rare in the esophagus (5). In cases of intraesophageal multiple carcinomaswith lymph node metastases, the primary focus of themetastatic tumors cannot be identified by conventionalhistologic examination. Here we report a case of intraesophageal multiple carcinomas in whichthe attributed foci of lymph nodal metastases could beclearly identified by analyzing the p53 gene mutationalstatus used as a clonal marker. 相似文献
39.
Noninvasive investigation of exocrine pancreatic function: Feasibility of cine dynamic MRCP with a spatially selective inversion‐recovery pulse 下载免费PDF全文
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