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101.
102.
Goldenberg I Matetzky S Halkin A Roth A Di Segni E Freimark D Elian D Agranat O Har Zahav Y Guetta V Hod H 《American heart journal》2003,145(5):862-867
Background
Prior studies have yielded conflicting data on the advantage of primary angioplasty compared with thrombolysis in elderly patients with acute myocardial infarction (AMI). These studies, however, were performed before the contemporary widespread use of intracoronary stents and glycoprotien IIb/IIIa antagonists.Methods
We prospectively compared the outcome of 130 consecutive elderly patients (aged ≥70 years) with ST-elevation AMI who were admitted to 2 similar neighboring medical centers. Patients were assigned to receive either thrombolytic therapy with accelerated tissue-type plasminogen activator (center I) or primary angioplasty with routine stenting (center II).Results
Of the patients assigned to receive primary angioplasty, 91% underwent stenting. At 6 months, patients treated with primary angioplasty, compared with those treated with thrombolytic therapy, had a lower incidence of reinfarction (2% vs 14%, P = .053) and revascularization for recurrent ischemia (9% vs 61%, P < .001) and a significant reduction in the prespecified combined end point of death, reinfarction, or revascularization for recurrent ischemia (29% vs 93%, P < .01). Primary angioplasty remained an independent predictor of the triple combined end point after controlling for potential covariables (relative risk 0.63, 95% CI 0.38-0.84). Major bleeding complications were also significantly reduced in the primary angioplasty group (0% vs 17%, P = .03).Conclusions
Compared with thrombolysis, primary angioplasty with routine stenting in elderly patients with AMI is associated with better clinical outcomes and a lower risk of bleeding complications. 相似文献103.
Pulmonary hypertension in patients with end-stage renal disease 总被引:7,自引:0,他引:7
BACKGROUND: The aims of this study were to evaluate the incidence of unexplained pulmonary hypertension (PH) among patients with end-stage renal disease (ESRD) and to suggest possible etiologic factors. METHODS: The incidence of PH was prospectively estimated by Doppler echocardiography in 58 patients with ESRD receiving long-term hemodialysis via arteriovenous access, and in control groups of 5 patients receiving peritoneal dialysis (PD) and 12 predialysis patients without a known other cause to suggest the presence of PH. Clinical variables were compared between patients with and without PH receiving hemodialysis. Changes in pulmonary artery pressure (PAP) values before and after onset of hemodialysis via arteriovenous access, arteriovenous access compression, and successful kidney transplantation were recorded. RESULTS: PH > 35 mm Hg was found in 39.7% of patients receiving hemodialysis (mean +/- SD, 44 +/- 7 mm Hg; range, 37 to 65 mm Hg), in none of the patients receiving PD, and in 1 of 12 predialysis patients. Patients with PH receiving hemodialysis had a significantly higher cardiac output (6.9 L/min vs 5.5 L/min, p = 0.017). PH developed in four of six patients with normal PAP after onset of hemodialysis therapy via arteriovenous access. One-minute arteriovenous access compression in four patients decreased the mean systolic PAP from 52 +/- 7 to 41 +/- 4 mm Hg (p = 0.024). PH normalized in four of five patients receiving hemodialysis following kidney transplantation. Kaplan-Meier survival analysis according to PAP values revealed significant survival differences (p < 0.024). CONCLUSIONS: This study demonstrates a surprisingly high incidence of PH among patients with ESRD receiving long-term hemodialysis with surgical arteriovenous access. Both ESRD and long-term hemodialysis via arteriovenous access may be involved in the pathogenesis of PH by affecting pulmonary vascular resistance and cardiac output. 相似文献
104.
105.
106.
Vascular complications in steroid treated patients undergoing transfemoral aortic valve implantation
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Noam Fink MD Amit Segev MD Israel Barbash MD Andrada Bogdan MD Ashraf Hamdan MD Israel Mazin MD Elad Maor MD PhD Ilan Hay MD Victor Guetta MD Paul Fefer MD 《Catheterization and cardiovascular interventions》2016,87(2):341-346
- Steroids if taken chronically or periprocedurally contribute to delayed wound healing and decreased vascular patency
- Access site complications after diagnostic interventional procedures carry significant morbidity, increased cost, and prolonged hospital stay
- TAVI offers high risk surgical candidates with severe aortic stenosis a significant survival advantage
107.
Proteins associated with poly(A)+RNA of cockerel liver: effects of estradiol stimulation. 总被引:2,自引:1,他引:2
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T R Johnson J Ilan 《Proceedings of the National Academy of Sciences of the United States of America》1982,79(13):4088-4092
The protein population of poly(A)-containing messenger ribonucleoprotein (mRNP) from cockerel liver was analyzed before and after estradiol induction. Polysomal and free mRNP were isolated by thermal elution from oligo(dT)-cellulose. The proteins were separated by two-dimensional electrophoresis (of which the first dimension was a nonequilibrium pH gradient) and were visualized by silver staining. In order to determine similarities and differences between proteins of various mRNP fractions, trace amounts of 125I-labeled protein from one fraction were coelectrophoresed with stainable amounts of protein from another fraction on the same gel. Of 27 proteins analyzed, 15 were common to polysomal and free mRNP, 7 were specific to polysomal mRNP, and 5 were specific to free mRNP. Moreover, estradiol strongly influenced 11 proteins. Six proteins changed either in relative intensity or in distribution between polysomal and free mRNP fractions. Three major proteins appeared in both fractions, and two additional proteins disappeared from the free mRNP fraction after estradiol treatment. The results suggest that the protein population in polysomal mRNP is quite complex and that the profound influence of estradiol on protein synthesis in cockerel liver may be connected to changes in the protein composition of mRNP. 相似文献
108.
Ilan Y Gotsman I Pines M Beinart R Zeira M Ohana M Rabbani E Engelhardt D Nagler A 《Blood》2000,95(11):3613-3619
Chronic graft versus host disease (cGVHD) is a major complication that can develop after bone marrow transplantation. It involves an immune-mediated attack by transplanted donor lymphocytes, and often results in inflammatory damage of host target organs. Immune hyporesponsiveness induced by oral antigen administration has been recently shown to prevent the development of cGVHD in a murine model. The aim of this study was to evaluate whether tolerance induction in bone marrow transplant (BMT) recipients after transplantation, toward their pretransplant antigens, can alleviate preexisting cGVHD in a mouse model. cGVHD was generated by infusing 2.5 x 10(7) splenocytes from B10.D2 donor mice, to sublethally irradiated (6 Gy) BALB/c recipient mice, which differ by minor histocompatibility antigens. Transplantation resulted in cGVHD, with characteristic scleroderma-like cutaneous fibrosis, increased skin collagen content, decreased body weight, and hepatic and small bowel inflammation. Oral tolerance was induced by feeding recipient BALB/c mice with proteins extracted from BALB/c splenocytes for 11 days after B10.D2 splenocyte transplantation. Tolerance induction was evidenced by a significant reduction in mixed lymphocyte response of effector splenocytes from tolerant BALB/c mice transplanted with B10.D2 splenocytes against BALB/c target splenocytes. Oral tolerance decreased skin collagen deposits. Reduction of collagen alpha1(I) gene expression and skin collagen were shown by in situ hybridization and histochemistry, respectively. Liver and bowel biopsy specimens revealed less inflammation. Serum IL-10 levels were higher in tolerant mice than in controls, whereas IFNgamma was significantly reduced. Oral tolerance of BMT recipients toward their pretransplant antigens after splenocyte transplantation down-regulated the immune attack by transplanted cells, thus ameliorating cGVHD. 相似文献
109.
110.
Shimon Rochkind Ido Strauss Zvi Shlitner Malvina Alon Evgeny Reider Moshe Graif 《Acta neurochirurgica》2014,156(8):1567-1575