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1.
Gaurang Nandkishor Vaidya Lawrence S.C. Czer Daniel Luthringer Michelle Kittleson Jignesh Patel David H. Chang Evan Kransdorf Dael Geft Babak Azarbal Michele Hamilton Jon Kobashigawa 《Transplantation proceedings》2021,53(1):348-352
BackgroundGiant cell myocarditis (GCM) has a poor prognosis without heart transplant, but post-transplant survival is unknown.PurposeTo describe the post-transplant survival of patients with GCM at a large transplant center.MethodsSeven patients underwent heart transplant for histologically confirmed GCM of the explanted heart. The median age was 59 years, and 43% (3 of 7) were female. All patients had cardiogenic shock, multiorgan failure, elevated troponin, and recurrent ventricular tachycardia, and some required mechanical circulatory support. All patients received rabbit antithymocyte globulin (rATG) in the perioperative period at a dose of 1.5 mg/kg daily for 1 to 5 days and 4 received intravenous immunoglobulin 1 g/kg daily for 2 days after rATG. All patients had early initiation of tacrolimus by first to third postoperative day depending on renal function, early mycophenolate, and high dose steroid. All were maintained using tacrolimus, mycophenolate, and prednisone.ResultsOne patient had asymptomatic recurrence of GCM at 3 months, managed by up-titration of tacrolimus, and had asymptomatic 2R cellular rejection at 4 months, managed with steroid bolus. No patient had high-grade rejection. One patient died at 267 days, possibly of GCM. Six of 7 (86%) remain alive at a median of 842 days (2.3 years) post transplant.ConclusionsPatients with GCM have excellent post-transplant survival with use of rATG and triple drug immunosuppressive therapy; however, some patients remain at risk for GCM recurrence after transplant, which may respond to augmented immunosuppression. 相似文献
2.
Jignesh K. Patel Guillaume Coutance Alexandre Loupy Deanna Dilibero Michele Hamilton Michelle Kittleson Evan Kransdorf Babak Azarbal Osamu Seguchi Xiaohai Zhang David Chang Dael Geft Lawrence Czer Shaida Varnous Jon A. Kobashigawa 《American journal of transplantation》2021,21(7):2479-2488
Allosensitization represents a major barrier to heart transplantation (HTx). We assessed the efficacy and safety of complement inhibition at transplant in highly sensitized heart transplant recipients. We performed a single-center, single-arm, open-label trial (NCT02013037). Patients with panel reactive antibodies (PRA) ≥70% and pre–formed donor-specific antibodies (DSA) were eligible. In addition to standard of care, patients received nine infusions of eculizumab during the first 2 months posttransplant. The primary composite endpoint was antibody-mediated rejection (AMR) ≥pAMR2 and/or left ventricular dysfunction during the first year. Secondary endpoints included hemodynamic compromise, allograft rejection, and patient survival. Twenty patients were included. Median cPRA and mean fluorescence intensity of immunodominant DSA were 95% (90%–97%) and 6250 (5000–10 000), respectively. Retrospective B cell and T cell flow crossmatches were positive in 14 and 11 patients, respectively. The primary endpoint occurred in four patients (20%). Survival at 1 year was 90% with no deaths resulting from AMR. In a prespecified analysis comparing treated patients to matched control patients, we observed a dramatic reduction in the risk of biopsy-proven AMR in patients treated with eculizumab (HR = 0.36, 95% CI = 0.14–0.95, p = .032). Our findings support the prophylactic use of complement inhibition for heart transplantation at high immunological risk. ClinincalTrials.gov, NCT02013037. 相似文献
3.
Pierik LJ van Spronsen FJ Bijleveld CM van Dael CM 《Journal of inherited metabolic disease》2005,28(6):871-876
Summary Hereditary tyrosinaemia type I is an autosomal recessive inborn error of tyrosine catabolism caused by a deficiency of the
enzyme fumarylacetoacetase that results in liver failure, hepatocellular carcinoma, renal tubular dysfunction and acute intermittent
porphyria. When treated with liver transplantation, tyrosinaemia type I was considered to be cured. Some years after the first
liver transplantations in these patients, some reports focused on the renal function after transplantation. These reports
showed that urinary succinylacetone excretion remained but that tubular function normalized. In this report we discuss the
long-term renal follow-up (mean follow-up time 11 years, range 7–14 years) after liver transplantation in 9 patients with
tyrosinaemia type I treated by liver transplantation in our centre. An evaluation was made of renal function and succinylacetone
excretion in urine. In all patients we found a persistent excretion of succinylacetone in the urine. With respect to the glomerular
function, we can conclude that there is no clear change in GFR. At the same time, tubulopathy persisted in some patients.
We consider that excretion of metabolites such as succinylacetone will be an important contributing factor to tubular dysfunction
after liver transplantation in patients with tyrosinaemia type I. Therefore, notwithstanding the major effect of liver transplantation
on tyrosine metabolism, renal tubular dysfunction remains at risk and needs careful monitoring. Progressive tubular dysfunction
can cause glomerular damage. The use of low-dose NTBC might be considered after liver transplantation in case of tubulopathy
to prevent progression of tubular and glomerular dysfunction.
An erratum to this article is available at . 相似文献
4.
J Maddahi W Ganz K Ninomiya J Hashida M C Fishbein A Mondkar N Buchbinder H Marcus I Geft P K Shah A Rozanski H J Swan D S Berman 《American heart journal》1981,102(4):664-674
Immediate objective assessment of viabillty of reperfused myocardium following intracoronary (IC) thrombolysis by evaluation of ventricular function may be limited due to delay in restoration of function. Thus we assessed myocardial uptake of thallium-201 (TI-201) following IC injection postreperfusion as an index of myocardial salvage in 12 experimental dogs and in five patients with evolving acute myocardial infarction (AMI). In seven dogs with mean of 313 minutes of experimental coronary occlusion, immediate postreperfusion IC TI-201 images revealed absence of myocardial uptake in prevlously occluded zones. These TI-201 defects correlated with presence of necrosis as demonstrated by histochemical staining with triphenyl-tetrazolium chloride (TTC). In contrast, in five dogs with mean of 37 minutes of coronary occlusion, reperfused myocardium showed normal TI-201 uptake following its IC injection; this normal TI-201 uptake pattern correlated with absence of necrosis by TTC technique in all five dogs. In five patients with evolving AMI, control TI-201 images obtained following IV injection prior to IC thrombolysis showed myocardial perfusion defects corresponding to distribution of the occluded vessel. Following reperfusion, 30 to 50 mCi of TI-201 was injected into the reopened coronary artery. In two patients with mean symptom onset of reperfusion time of , immediate postreperfusion IC TI-201 images demonstrated normal or improved TI-201 uptake in reperfused myocardium. By radionuclide ventriculography, segmental wall motion remained abnormal in the reperfused regions 6 hours postreperfusion and showed improvement by the time of 10-day study. In the remaining three patients with symptom onset to reperfusion time of 5 hours, immediate postreperfusion IC TI-201 images did not show improvement, correlating with persistent wall motion abnormalities 10 days postreperfusion. In all five patients, repeat 10-day IV TI-201 images were unchanged from the immediate postreperfusion IC TI-201 images. We conclude that (1) prereperfusion TI-201 imaging with repeat TI-201 injection into the reopened coronary artery appears to delineate the extent of myocardial salvage in both experimental and clinical studies and (2) this method of IC TI-201 imaging allows immediate assessment of myocardial viabillty which may facilltate decisions regarding the need for additional myocardial revascularization modalities. 相似文献
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6.
M. T. P. Besouw G. M. Hulstijn-Dirkmaat R. E. A. van der Rijken E. A. M. Cornelissen C. M. van Dael J. Vande Walle M. R. Lilien E. N. Levtchenko 《Journal of inherited metabolic disease》2010,33(6):787-793
Introduction
Cystinosis is an autosomal recessive disorder leading to intralysosomal cystine accumulation in various tissues. It causes renal Fanconi syndrome and end stage renal failure around the age of 10 years if not treated with cysteamine. Children with cystinosis seem to have a normal intelligence but frequently show learning difficulties. These problems may be due to specific neurocognitive deficits rather than impaired renal function. Whether cysteamine treatment can improve cognitive functioning of cystinosis patients is thus far unknown. We aim to analyze neurocognitive functioning of school-aged cystinosis patients treated with cysteamine in order to identify specific deficits that can lead to learning difficulties. 相似文献7.
van Dael CM Pierik LJ Reijngoud DJ Niezen-Koning KE van Diggelen OP van Spronsen FJ 《Molecular genetics and metabolism》2007,90(2):221-223
Partial hypoxanthine-guanine phosphoribosyl transferase (HGPRT) deficiency, also known as the Kelley-Seegmiller syndrome, can give rise to a wide range of neurological symptoms, and renal insufficiency. Biochemically, it is characterized by high uric acid concentrations in blood, high uric acid and hypoxanthine excretion in urine, and decreased activity of hypoxanthine-guanine phosphoribosyl transferase activity (HGPRT). However, normal uric acid concentrations in blood and uric acid excretions in urine have been reported. Here, a boy is presented with normal development and suffering from recurrent attacks of acute renal failure with slightly to clearly increased urinary uric acid excretion. Between these attacks, episodes of elevated urinary excretion of uric acid were observed with normal blood concentrations of uric acid and normal urinary excretion of hypoxanthine. HGPRT activity in erythrocytes, leukocytes, and fibroblasts was found to be strongly decreased. This case shows that not only normal blood uric acid but also normal urinary hypoxanthine concentrations do not exclude the diagnosis of partial HGPRT deficiency. 相似文献
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