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1.
J Clin Med ; 13(11)2024 May 30.
Article de Anglais | MEDLINE | ID: mdl-38892922

RÉSUMÉ

The demographic profile of patients transitioning from chronic kidney disease to kidney replacement therapy is changing, with a higher prevalence of aging patients with multiple comorbidities such as diabetes mellitus and heart failure. Cardiovascular disease remains the leading cause of mortality in this population, exacerbated by the cardiovascular stress imposed by the HD procedure. The first year after transitioning to hemodialysis is associated with increased risks of hospitalization and mortality, particularly within the first 90-120 days, with greater vulnerability observed among the elderly. Based on data from clinics in Fresenius Medical Care Europe, Middle East, and Africa NephroCare, this review aims to optimize hemodialysis procedures to reduce mortality risk in stable incident and prevalent patients. It addresses critical aspects such as treatment duration, frequency, choice of dialysis membrane, dialysate composition, blood and dialysate flow rates, electrolyte composition, temperature control, target weight management, dialysis adequacy, and additional protocols, with a focus on mitigating prevalent intradialytic complications, particularly intradialytic hypotension prevention.

2.
Vasc Med ; : 1358863X241240428, 2024 Apr 12.
Article de Anglais | MEDLINE | ID: mdl-38607943

RÉSUMÉ

BACKGROUND: Chronic kidney disease is associated with increased rates of incidence, morbidity, and mortality in lower-extremity peripheral artery disease (PAD). No specific marker for a functional risk assessment of kidney disease in PAD is known, especially at the early stages. Thus, we speculated that urinary vanin-1 (uVNN1), a marker of oxidative stress even in early kidney injury, could further stratify outcome assessment in patients with PAD. METHODS: Patients with stable PAD (n = 304) of the Vienna medical cohort were followed up for up to 10 years and the outcome was assessed by central death database queries. uVNN1 was measured by enzyme-linked immunosorbent assay (ELISA) at study inclusion and normalized to urinary creatinine (uVNN1/Cr). During the observation time (9.3, 7.0-9.8 years), 104 patients died, 54.8% of which were due to cardiovascular causes. RESULTS: uVNN1/Cr was associated with a urine albumin-creatinine ratio (UACR) (R = 0.166, p = 0.004) but not with an estimated glomerular filtration rate (R = 0.102, p = 0.077). Levels of uVNN1/Cr did not differ between asymptomatic and symptomatic PAD (p = 0.406). Kaplan-Meier curves showed a clear-cut association with higher all-cause (log-rank p = 0.034) and cardiovascular mortality (log-rank p = 0.032) with higher uVNN1/Cr levels. Similarly, significant associations for all-cause (hazard ratio [HR] 1.34, 95% CI [1.08-1.67], p = 0.009) and cardiovascular mortality (HR 1.45, 95% CI [1.06-1.99], p = 0.020) could be seen in multivariable Cox regression models. CONCLUSIONS: uVNN1/Cr showed an independent association with both all-cause and cardiovascular mortality in patients with PAD and was associated with early kidney disease. Thus, uVNN1 could be a useful marker for risk stratification of kidney disease in PAD.

3.
Atherosclerosis ; 370: 12-17, 2023 04.
Article de Anglais | MEDLINE | ID: mdl-36898866

RÉSUMÉ

BACKGROUND AND AIMS: Secondary calciprotein particles (CPP-II) induce inflammation and contribute to vascular calcification. CPP-II size is associated with vascular calcification in patients with chronic kidney disease (CKD) and all-cause mortality in hemodialysis patients. Here, we investigate for the first time a possible role of CPP-II size in patients with peripheral artery disease (PAD) without severe CKD. METHODS: We measured the hydrodynamic radius (Rh) of CPP-II by using dynamic light scattering in a cohort of 281 PAD patients. Mortality was evaluated over a period of ten years by central death registry queries. 35% of patients died during the observation period (median of 8.8 (6.2-9.0) years). Cox-regression analyses were performed to estimate hazard ratios (HR) and 95% confidence intervals (CI) and to allow for multivariable adjustment. RESULTS: The mean CPP-II size was 188 (162-218) nm. Older patients, patients with reduced kidney function, and those with media sclerosis had larger CPP-II (p < 0.001, p = 0.008, and p = 0.043, retrospectively). There was no association between CPP-II size and overall atherosclerotic disease burden (p = 0.551). CPP-II size was independently significantly associated with all-cause (HR 1.33 (CI 1.01-1.74), p = 0.039) and cardiovascular mortality (HR 1.52 (CI 1.05-2.20), p = 0.026) in multivariable regression analyses. CONCLUSIONS: Large CPP-II size is associated with mortality in PAD patients and might be a new feasible biomarker for the presence of media sclerosis in this patient population.


Sujet(s)
Maladie artérielle périphérique , Insuffisance rénale chronique , Calcification vasculaire , Humains , Taille de particule , Études rétrospectives , Sclérose/complications , Calcification vasculaire/étiologie , Insuffisance rénale chronique/diagnostic , Insuffisance rénale chronique/complications , Maladie artérielle périphérique/diagnostic , Maladie artérielle périphérique/complications
4.
Thromb Haemost ; 122(6): 1040-1046, 2022 Jun.
Article de Anglais | MEDLINE | ID: mdl-34719013

RÉSUMÉ

Peripheral artery disease (PAD) has been shown to be linked to elevated cardiovascular risk. The novel T50 test quantifies calcification propensity of serum and has been associated with cardiovascular events and mortality in patients with chronic kidney disease (CKD) and in the general population. This study investigated the association of calcification propensity measured by the T50 test in 287 patients with PAD without severe CKD. Major cardiovascular events (MACEs) including nonfatal stroke and nonfatal myocardial infarction and all-cause death (MACE + ) were evaluated after a median follow-up of 4 years and long-term cardiovascular and all-cause mortality after a median follow-up of 8.7 years by Kaplan-Meier and Cox regression analyses. Mean T50 time was 268 ± 63 minutes in the study cohort (age 69 ± 10 years, 32% women, 47% diabetes). Low T50 values that signify high calcification propensity were significantly associated with the occurrence of MACE+ (hazard ratio [HR]: 0.72; 95% confidence interval [CI]: 0.55-0.94). This association sustained multivariate adjustment for cardiovascular risk factors (CVRFs), Fontaine PAD stage, and prevalent media sclerosis (HR: 0.65; CI: 0.47-0.91). Cardiovascular mortality was significantly associated with T50 after multivariate adjustment for CVRF (HR: 0.72; CI 0.53-0.99), but not all-cause mortality (HR: 0.80; CI: 0.64-1.01). In conclusion, calcification propensity associates with MACE+ and cardiovascular mortality in patients with PAD.


Sujet(s)
Calcinose , Maladie artérielle périphérique , Insuffisance rénale chronique , Sujet âgé , Calcinose/épidémiologie , Études de cohortes , Femelle , Humains , Mâle , Adulte d'âge moyen , Maladie artérielle périphérique/complications , Maladie artérielle périphérique/diagnostic , Modèles des risques proportionnels , Facteurs de risque
5.
Front Med (Lausanne) ; 8: 672348, 2021.
Article de Anglais | MEDLINE | ID: mdl-34222283

RÉSUMÉ

Background: The propensity of serum to calcify, as assessed by the T50-test, associates with mortality in patients with chronic kidney disease. In chronic heart failure, phosphate and fibroblast growth factor-23 (FGF-23), which are important components of the vascular calcification pathway, have been linked to patient survival. Here, we investigated whether T50 associates with overall and cardiovascular survival in patients with chronic heart failure with reduced ejection fraction (HFrEF). Methods: We measured T50, intact and c-terminal FGF-23 levels in a cohort of 306 HFrEF patients. Associations with overall and cardiovascular mortality were analyzed in survival analysis and Cox-regression models. Results: After a median follow-up time of 3.2 years (25th-75th percentile: 2.0-4.9 years), 114 patients (37.3%) died due to any cause and 76 patients (24.8%) died due to cardiovascular causes. 139 patients (45.4%) had ischemic and 167 patients (54.6%) had non-ischemic HFrEF. Patients with ischemic HFrEF in the lowest T50-tertile had significantly greater 2-year cardiovascular mortality compared to patients in higher tertiles (p = 0.011). In ischemic but not in non-ischemic HFrEF, T50 was significantly associated with cardiovascular mortality in univariate (p = 0.041) and fully adjusted (p = 0.046) Cox regression analysis. Significant associations of intact and c-terminal FGF-23 with all-cause and cardiovascular mortality in univariate Cox regression analysis did not remain significant after adjustment for confounding factors. Conclusion: T50 is associated with 2-year cardiovascular mortality in patients with ischemic HFrEF but not in non-ischemic HFrEF. More research on the role of T50 measurements in coronary artery disease is warranted.

6.
Front Med (Lausanne) ; 7: 585628, 2020.
Article de Anglais | MEDLINE | ID: mdl-33195341

RÉSUMÉ

Pure red cell aplasia (PRCA) after ABO-incompatible allogeneic hematopoietic stem cell transplantation (HSCT) is caused by persisting host-derived isohemagglutinins directed against donor red blood cell (RBC) antigens. ABO antigen-specific immunoadsorption (ABO-IA) with Glycosorb®, commonly used for desensitization therapy in ABO-incompatible living donor renal transplantation, specifically eliminates circulating isohemagglutinins and might represent a novel treatment option for post-HSCT PRCA. In this prospective observational (n = 3) and retrospective (n = 3) analysis of six adult HSCT-recipients with PRCA, ABO-IA was initiated at 159 (range: 104-186) days following HSCT. The median treatment frequency was 4.5 (range: 3.9-5.5) sessions/week. ABO-IA-treatment led to a continuous decrease in isohemagglutinin titers. Reticulocytes increased to ≥30 G/L after 17.5 (range: 4-37) immunoadsorption sessions over 28.5 (range: 6-49) days and continued to rise after that. By the end of the 3-month follow-up period after discontinuation of ABO-IA, all patients showed a sustained remission of PRCA and were independent of erythropoietin-stimulating agents and transfusions. No case of infection or graft-versus-host disease was observed. After a median follow-up of 22.03 (range: 6.08-149.00) months after ABO-IA-treatment, all patients were alive and showed a stable RBC engraftment of the donor blood group. Our data provide the first evidence for ABO-IA as an effective treatment for post-HSCT PRCA.

7.
Curr Opin Nephrol Hypertens ; 29(6): 623-629, 2020 11.
Article de Anglais | MEDLINE | ID: mdl-32941190

RÉSUMÉ

PURPOSE OF REVIEW: With the aging population of kidney transplant candidates, a history of malignancy is an increasingly prevalent finding. Tumors can constitute a contraindication for transplantation or can lead to a delay of acceptance to the waiting-list. Current waiting time guidelines mainly refer to early data collected nearly 30 years ago, when the knowledge on tumors was, by current standards, still limited. RECENT FINDINGS: Today, cancers can usually be divided into many different biological subtypes, according to histological and molecular subclassification and the availability of genetic testing. A more precise stratification and targeted antitumor therapies have led to better therapy outcomes or even cures from certain malignancies and to a better appreciation of tumor risks for the patient. SUMMARY: Even though transplant patients do have an increased risk for malignancies, it is often overlooked that patients, while on dialysis, are equally prone to develop a tumor. Competing risks (e.g. cardiovascular, mortality risks) through prolonged time on dialysis have to be equally considered, when the decision for acceptance of a patient to the waiting-list is made. Current waiting time suggestions should be critically reconsidered for every patient after a thorough discussion with an oncologist, including new diagnostic and therapeutic strategies, as well as novel risk stratifications.


Sujet(s)
Transplantation rénale , Sujet âgé , Humains , Transplantation rénale/statistiques et données numériques , Mâle , Adulte d'âge moyen , Tumeurs , Dialyse rénale/mortalité , Listes d'attente
8.
J Clin Med ; 9(8)2020 Aug 14.
Article de Anglais | MEDLINE | ID: mdl-32823844

RÉSUMÉ

Anemia in chronic kidney disease (CKD) is an almost universal complication of this condition. Fibroblast growth factor 23 (FGF23), a key-player in mineral metabolism, is reportedly associated with anemia and hemoglobin levels in non-dialysis CKD patients. Here, we sought to further characterize this association while taking into account the biologically active, intact fraction of FGF23, iron metabolism, and erythropoietin (EPO). Hemoglobin, EPO, iron, and mineral metabolism parameters, including both intact and c-terminal-FGF23 (iFGF23 and cFGF23, respectively) were measured cross-sectionally in 225 non-dialysis CKD patients (stage 1-5, median eGFR: 30 mL/min./1.73m2) not on erythropoiesis stimulating agents or intravenous iron therapy. Statistical analysis was performed by multiple linear regression. After adjustment for eGFR and other important confounders, only cFGF23 but not iFGF23 was significantly associated with hemoglobin levels and this association was largely accounted for by iron metabolism parameters. cFGF23 but not iFGF23 was also associated with mean corpuscular hemoglobin (MCH) and mean corpuscular volume (MCV), again in dependence on iron metabolism parameters. Similarly, EPO concentrations were associated with cFGF23 but not iFGF23, but their contribution to the association of cFGF23 with hemoglobin levels was marginal. In pre-dialysis CKD patients, the observed association of FGF23 with hemoglobin seems to be restricted to cFGF23 and largely explained by the iron status.

9.
BMC Nephrol ; 21(1): 256, 2020 07 06.
Article de Anglais | MEDLINE | ID: mdl-32631286

RÉSUMÉ

BACKGROUND: Renal loss of potassium (K+) and magnesium (Mg2+) in salt losing tubulopathies (SLT) leads to significantly reduced Quality of Life (QoL) and higher risks of cardiac arrhythmia. The normalization of K+ is currently the most widely accepted treatment target, however in even excellently designed RCTs the increase of K+ was only mild and rarely normalized. These findings question the role of K+ as the ideal marker of potassium homeostasis in SLT. Aim of this hypothesis-generating study was to define surrogate endpoints for future treatment trials in SLT in terms of their usefulness to determine QoL and important clinical outcomes. METHODS: Within this prospective cross-sectional study including 11 patients with SLTs we assessed the biochemical, clinical and cardiological parameters and their relationship with QoL (RAND SF-36). The primary hypothesis was that QoL would be more dependent of higher aldosterone concentration, assessed by the transtubular-potassium-gradient (TTKG). Correlations were evaluated using Pearson's correlation coefficient. RESULTS: Included patients were mainly female (82%, mean age 34 ± 12 years). Serum K+ and Mg2+ was 3.3 ± 0.6 mmol/l and 0.7 ± 0.1 mmol/l (mean ± SD). TTKG was 9.5/3.4-20.2 (median/range). While dimensions of mental health mostly correlated with serum Mg2+ (r = 0.68, p = 0.04) and K+ (r = 0.55, p = 0.08), better physical health was associated with lower aldosterone levels (r = -0.61, p = 0.06). TTKG was neither associated with aldosterone levels nor with QoL parameters. No relevant abnormalities were observed in neither 24 h-ECG nor echocardiography. CONCLUSIONS: Hyperaldosteronism, K+ and Mg2+ were the most important parameters of QoL. TTKG was no suitable marker for hyperaldosteronism or QoL. Future confirmatory studies in SLT should assess QoL as well as aldosterone, K+ and Mg2+.


Sujet(s)
Syndrome de Bartter/physiopathologie , Syndrome de Gitelman/physiopathologie , Hyperaldostéronisme/physiopathologie , Hypokaliémie/physiopathologie , Magnésium/métabolisme , Qualité de vie , Adulte , Aldostérone/métabolisme , Syndrome de Bartter/métabolisme , Syndrome de Bartter/psychologie , Femelle , Syndrome de Gitelman/métabolisme , Syndrome de Gitelman/psychologie , Homéostasie , Humains , Hyperaldostéronisme/métabolisme , Hyperaldostéronisme/psychologie , Hypokaliémie/métabolisme , Hypokaliémie/psychologie , Mâle , Adulte d'âge moyen , Potassium/métabolisme , Études prospectives , Troubles de l'équilibre hydroélectrolytique/métabolisme , Troubles de l'équilibre hydroélectrolytique/physiopathologie , Troubles de l'équilibre hydroélectrolytique/psychologie , Jeune adulte
10.
Transplantation ; 104(1): 145-153, 2020 01.
Article de Anglais | MEDLINE | ID: mdl-31343566

RÉSUMÉ

BACKGROUND: Urological obstructive complications (UOC) affect up to 15% of kidney transplants (KTX). Most cases are excluded by ultrasonography (US); however, accuracy may be limited in the early transplant phase. Features of acute tubular injury (ATI) in KTX biopsy may be informative but histological features indicating UOC are ill defined. Tubular ectasia (TE) was shown to be associated with UOC in experimental data. We evaluated the association of histomorphological features, particularly TE, with occult (=without relevant hydronephrosis in US) UOC and renal outcomes. METHODS: We included all recipients with an early indication biopsy (976 of 1537 consecutive KTX). The biopsy finding of TE classified as "suspicious of UOC" was compared with the following endpoints: delayed graft function, estimated glomerular filtration rate, and occult UOC. Additionally, histopathological features of ATI were reevaluated by a single pathologist to increase diagnostic accuracy. RESULTS: Fifty-eight (5.9%) patients presented with TE, which was not related to delayed graft function or estimated glomerular filtration rate. Forty percent of patients had a UOC (most frequently ureteral stenosis) close to biopsy. Comparing these biopsies to matched controls, TE was significantly associated with UOC (odds ratio 2.69; P = 0.018). After histopathological reevaluation of these biopsies including additional features of ATI, we developed a final multivariate model with a highly significant relationship to UOC (Receiver operating characteristic-area under the curve: 0.77; P = 0.001). The model provides a specificity of 78% and negative predictive value of 73%. CONCLUSIONS: TE together with additional signs of ATI indicates occult UOC. This histological phenotype should trigger more detailed evaluation for UOC when there is no evidence of relevant hydronephrosis in the ultrasonography.


Sujet(s)
Allogreffes/anatomopathologie , Transplantation rénale/effets indésirables , Tubules rénaux/anatomopathologie , Complications postopératoires/épidémiologie , Obstruction urétérale/épidémiologie , Adulte , Allogreffes/physiopathologie , Biopsie , Reprise retardée de fonction du greffon/épidémiologie , Reprise retardée de fonction du greffon/physiopathologie , Dilatation pathologique/épidémiologie , Dilatation pathologique/étiologie , Dilatation pathologique/anatomopathologie , Femelle , Débit de filtration glomérulaire/physiologie , Humains , Rein , Tubules rénaux/physiopathologie , Mâle , Adulte d'âge moyen , Modèles statistiques , Analyse multifactorielle , Complications postopératoires/étiologie , Complications postopératoires/anatomopathologie , Complications postopératoires/physiopathologie , Valeur prédictive des tests , Études rétrospectives , Appréciation des risques , Transplantation homologue/effets indésirables , Obstruction urétérale/étiologie , Obstruction urétérale/anatomopathologie , Obstruction urétérale/physiopathologie
11.
Sci Rep ; 7(1): 17941, 2017 12 20.
Article de Anglais | MEDLINE | ID: mdl-29263429

RÉSUMÉ

Vascular calcification is a component of cardiovascular disease, which is leading cause of death in patients with chronic kidney disease (CKD). A functional assay (T50-test) measuring the propensity of human serum to calcify associates with mortality and cardiovascular events in CKD patients. Calcification propensity is known to increase with CKD stage. We investigated whether the T50 readout is directly dependent on excretory kidney function (eGFR) or rather explained by deranged parameters of bone and mineral metabolism in the course of CKD. T50, along with markers implicated in calcification and mineral metabolism, were measured in a cross-sectional cohort of 118 patients with CKD stage 1-5. Associations of T50 with measured parameters were analysed and partial correlations performed to test to which extent the association of T50 with eGFR can be attributed to variation of these parameters. T50 correlates with eGFR, but serum levels of phosphate and calcium largely explain this association. Phosphate, magnesium, fetuin A, albumin, bicarbonate, and serum cross-laps but not Parathyroid Hormone or Fibroblast Growth Factor 23 are associated with T50 in multivariate adjusted models. These findings indicate that T50 values depend mainly on the concentration of promoters and inhibitors of calcification in serum, but not excretory kidney function.


Sujet(s)
Calcinose/anatomopathologie , Rein/physiopathologie , Insuffisance rénale chronique/anatomopathologie , Adulte , Calcinose/sang , Calcinose/physiopathologie , Calcium/sang , Études transversales , Femelle , Débit de filtration glomérulaire , Humains , Tests de la fonction rénale , Mâle , Adulte d'âge moyen , Phosphates/sang , Insuffisance rénale chronique/sang , Insuffisance rénale chronique/physiopathologie
13.
PLoS One ; 12(2): e0171873, 2017.
Article de Anglais | MEDLINE | ID: mdl-28199411

RÉSUMÉ

Hemodialysis (HD) patients face increased fracture risk, which is further associated with elevated risk of hospitalization and mortality. High-resolution peripheral computed tomography (HR-pQCT) has advanced our understanding of bone disease in chronic kidney disease by characterizing distinct changes in both the cortical and trabecular compartments. Increased cortical porosity (Ct.Po) has been shown to be associated with fracture in patients with osteopenia or in postmenopausal diabetic women. We tested whether the degree of Ct.Po identifies hemodialysis patients with prevalent fragility fractures in comparison to bone mineral density (BMD) assessed by dual X-ray absorptiometry (DXA). We performed a post-hoc analysis of a cross-sectional study in 76 prevalent hemodialysis patients. Markers of mineral metabolism, coronary calcification score, DXA-, and HR-pQCT-data were analyzed, and Ct.Po determined at radius and tibia. Ct.Po was significantly higher in patients with fracture but association was lost after adjusting for age and gender (tibia p = 0.228, radius p = 0.5). Instead, femoral (F) BMD neck area (p = 0.03), F T-score neck area (p = 0.03), radius (R) BMD (p = 0.03), R T-score (p = 0.03), and cortical HR-pQCT indices such as cortical area (Ct.Ar) (tibia: p = 0.01; radius: p = 0.02) and cortical thickness (Ct.Th) (tibia: p = 0.03; radius: p = 0.02) correctly classified patients with fragility fractures. Area under receiver operating characteristic curves (AUC) for Ct.Po (tibia AUC: 0.711; p = 0.01; radius AUC: 0.666; p = 0.04), Ct.Ar (tibia AUC: 0.832; p<0.001; radius AUC: 0.796; p<0.001), and F neck BMD (AUC: 0.758; p = 0.002) did not differ significantly among each other. In conclusion, measuring Ct.Po is not superior to BMD determined by DXA for identification of HD patients with fragility fracture.


Sujet(s)
Fémur/physiopathologie , Fractures osseuses/diagnostic , Fractures osseuses/étiologie , Radius/physiopathologie , Insuffisance rénale chronique/complications , Tibia/physiopathologie , Absorptiométrie photonique , Adulte , Sujet âgé , Aire sous la courbe , Densité osseuse , Études transversales , Femelle , Fémur/imagerie diagnostique , Fémur/physiologie , Fractures osseuses/physiopathologie , Humains , Modèles logistiques , Mâle , Adulte d'âge moyen , Porosité , Courbe ROC , Radius/imagerie diagnostique , Dialyse rénale , Insuffisance rénale chronique/physiopathologie , Insuffisance rénale chronique/thérapie , Tibia/imagerie diagnostique , Tibia/physiologie , Tomodensitométrie
14.
Wien Klin Wochenschr ; 128(9-10): 384-6, 2016 May.
Article de Anglais | MEDLINE | ID: mdl-26919852

RÉSUMÉ

UNLABELLED: Neurologic complications after allogeneic hematopoietic stem cell transplantation (HSCT) are rare but poorly understood. We present a case report of a 57-year-old-male patient who was diagnosed in 2009 with acute myeloid leukemia (AML). He received two standard induction chemotherapies, as well as a following consolidation. Six months later, an allogeneic HSCT was performed. Shortly after HSCT the patient developed progressive polyneuropathy of the lower legs and hypoesthesia. Five months later a severe dementia followed. All images of the brain and spine showed no specific pathologies. High dose corticosteroids and immunoglobulins did not improve the neurologic symptoms. Due to severe worsening of the neuropsychiatric status and the clinical presentation, chronic inflammatory demyelinating polyneuropathy (CIDP) was suspected. Therefore, the patient received ten cycles of plasmapheresis. The patient showed a significant improvement of the neuropsychiatric symptoms and cognitive status. CONCLUSIONS: Immune mediated neuropathies after allogeneic HSCT, such as CIDP, have great variability in symptoms and presentation and are challenging to diagnose and treat. Plasmapheresis is a safe and efficient treatment for patients with unclear persisting autoimmune neuropathy after HSCT.


Sujet(s)
Troubles de la cognition/prévention et contrôle , Démence/prévention et contrôle , Transplantation de cellules souches hématopoïétiques/effets indésirables , Plasmaphérèse/méthodes , Polyradiculonévrite inflammatoire démyélinisante chronique/diagnostic , Polyradiculonévrite inflammatoire démyélinisante chronique/thérapie , Troubles de la cognition/diagnostic , Troubles de la cognition/étiologie , Démence/diagnostic , Démence/étiologie , Humains , Leucémie aigüe myéloïde/complications , Leucémie aigüe myéloïde/thérapie , Mâle , Adulte d'âge moyen , Transplantation homologue/effets indésirables , Résultat thérapeutique
15.
Oncology ; 90(3): 160-6, 2016.
Article de Anglais | MEDLINE | ID: mdl-26871562

RÉSUMÉ

OBJECTIVE: Umbilical cord blood (UCB) is an important graft source for hematopoietic stem cell transplantation (SCT). Due to less stringent human leukocyte antigen (HLA) matching criteria compared to bone marrow or peripheral blood stem cells, UCB enables patients lacking an HLA-matched donor to receive potentially curative SCT. METHODS: We retrospectively analyzed the efficacy and safety of UCB transplantation (UCBT) at our center. RESULTS: Between June 2009 and June 2015, 27 UCBT were performed in 25 patients. Reasons for the use of UCB were lack of adequate related or unrelated stem cell donor (n = 20) and graft failure after previous SCT (n = 7). Median time to neutrophil engraftment was 22 days. Four patients experienced primary graft failure. Thirteen patients developed acute graft-versus-host disease (GVHD), whereupon 6 subsequently also developed chronic GVHD. After a median follow-up time of 19 months, 9 patients relapsed and 12 patients died. Cause of death was relapse in 8 and transplant-related events in 4 patients. Median overall survival and progression-free survival have not been reached yet. CONCLUSION: In our experience, UCBT is an alternative graft source for patients lacking a suitable related or unrelated donor and a feasible treatment option for patients experiencing graft failure after previous SCT.


Sujet(s)
Sang foetal/transplantation , Maladie du greffon contre l'hôte/étiologie , Maladie du greffon contre l'hôte/chirurgie , Tumeurs hématologiques/chirurgie , Transplantation de cellules souches hématopoïétiques , Thérapie de rattrapage/méthodes , Maladie aigüe , Adulte , Sujet âgé , Maladie chronique , Études de faisabilité , Femelle , Études de suivi , Transplantation de cellules souches hématopoïétiques/effets indésirables , Humains , Estimation de Kaplan-Meier , Mâle , Adulte d'âge moyen , Études rétrospectives , Transplantation autologue , Transplantation homologue , Résultat thérapeutique
16.
Oncology ; 89(4): 196-204, 2015.
Article de Anglais | MEDLINE | ID: mdl-26228581

RÉSUMÉ

Autologous hematopoietic stem cell transplantation (ASCT) is the standard of care for selected patients with multiple myeloma (MM). Many data exist on ASCT in the era of novel agents. We retrospectively analyzed 189 patients (108 males and 81 females) with biopsy-proven MM, who had received ASCT after induction therapy with either conventional chemotherapy alone or in combination with novel agents at our department. The outcomes of both groups and the risk factors for shorter survival were investigated. The most commonly used induction chemotherapy prior to ASCT was VAD (vincristine, doxorubicin and dexamethasone, 42%), followed by PAD (bortezomib, doxorubicin and dexamethasone, 21%). One-hundred and twenty-nine patients (68%) received cyclophosphamide-recombinant human granulocyte colony-stimulating factor for stem cell mobilization. No differences were observed for progression-free survival in terms of the number of transplanted CD34+ cells (p = 0.261). A trend in improved overall survival (OS) was seen for the use of novel agents when compared to conventional chemotherapy (164.3 vs. 82.0 months; p = 0.046). The International Staging System stages had a significant (p = 0.036) impact on OS. The novel agents improved OS in our patients with MM undergoing ASCT when compared to conventional chemotherapy regimens. The number of transplanted CD34+ cells had no significant impact on hematopoietic reconstitution.


Sujet(s)
Protocoles de polychimiothérapie antinéoplasique/usage thérapeutique , Myélome multiple/traitement médicamenteux , Myélome multiple/chirurgie , Adulte , Sujet âgé , Sujet âgé de 80 ans ou plus , Antigènes CD34/métabolisme , Cyclophosphamide/administration et posologie , Dexaméthasone/administration et posologie , Survie sans rechute , Doxorubicine/administration et posologie , Femelle , Facteur de stimulation des colonies de granulocytes/administration et posologie , Transplantation de cellules souches hématopoïétiques/méthodes , Humains , Chimiothérapie d'induction/méthodes , Mâle , Adulte d'âge moyen , Myélome multiple/métabolisme , Études rétrospectives , Transplantation autologue/méthodes , Résultat thérapeutique , Vincristine/administration et posologie
17.
Oncology ; 89(2): 118-23, 2015.
Article de Anglais | MEDLINE | ID: mdl-25895548

RÉSUMÉ

Mantle cell lymphoma (MCL) is a B cell non-Hodgkin's lymphoma characterized by a poor prognosis. Many different therapeutic approaches including intensive chemotherapy as well as new targeted therapies are established. However, overall survival remains unsatisfying. As the sole curative option, allogeneic hematopoietic stem cell transplantation (HSCT) has been described, but only a limited number of patients qualify for this procedure. We have retrospectively analyzed 7 patients with stage IV MCL undergoing allogeneic HSCT at our institution. A myeloablative regimen was used in 1 patient, while the other 6 patients received reduced-intensity conditioning. Four patients had an HLA-identical sibling, and the remaining 3 patients had an HLA-identical unrelated donor. One patient developed acute graft-versus-host disease (skin, grade III; intestine, grade II). Two patients died from transplant-related causes, 3 patients died due to progressive disease and the remaining 2 patients are still in complete remission 147 and 8 months after transplantation. Allogeneic HSCT offers a therapeutic treatment option for selected patients in a relapsed/refractory setting. The incorporation of novel agents has improved the outcome of patients with MCL. Thus, the role and optimal time point of allogeneic HSCT should be reevaluated in randomized trials.


Sujet(s)
Transplantation de cellules souches hématopoïétiques/effets indésirables , Lymphome à cellules du manteau/mortalité , Lymphome à cellules du manteau/thérapie , Adulte , Sujet âgé , Maladie du greffon contre l'hôte , Humains , Lymphome à cellules du manteau/anatomopathologie , Mâle , Adulte d'âge moyen , Induction de rémission , Études rétrospectives , Analyse de survie , Transplantation homologue , Résultat thérapeutique
18.
Wien Klin Wochenschr ; 127(3-4): 92-7, 2015 Feb.
Article de Anglais | MEDLINE | ID: mdl-25609569

RÉSUMÉ

BACKGROUND: In addition to conventional chemotherapeutic regimens and autologous transplantation, novel agents are now part of the treatment armamentarium against multiple myeloma (MM). To evaluate the presumed benefit of novel agents, we performed an analysis of patients with MM at our institution before and after the availability of novel agents. DESIGN AND METHODS: In all, 200 consecutive patients with newly diagnosed MM (male = 119; female = 81; median age: 61.5 years) treated at our institution between June 1993 and December 2008 were included in this retrospective analysis. Patient cohorts were defined according to date of diagnosis (before and after 01-Jan-2000, respectively), treatment received (chemotherapy only vs. therapy including novel agents), risk profile (International Staging System (ISS)-stage), and cytogenetic features. Primary focus of the analysis was overall survival (OS). RESULTS: Median OS for MM patients who received conventional chemotherapy was 45.2 months and for patients who received novel agents 74.6 months (P < 0.01). OS for those patients who relapsed after autotransplantation before 2000 was 35.2 months, but 72.7 months (P < 0.01) for those patients with a later relapse. Prolongation of survival for patients receiving novel agents was most evident for patients with ISS stage III (median OS 68.4 vs. 11.2 months for patients with chemotherapy only; P < 0.01). MM patients with an intermediate risk had a longer median OS when receiving novel agents (47.2 vs. 32.8 months). CONCLUSION: Treatment with novel agents in MM resulted in a significant prolongation of OS. Benefit of therapy with novel agents was particularly evident for transplant-eligible patients and MM patients with unfavorable prognosis.


Sujet(s)
Antinéoplasiques/administration et posologie , Myélome multiple/traitement médicamenteux , Myélome multiple/mortalité , Adulte , Sujet âgé , Sujet âgé de 80 ans ou plus , Antinéoplasiques/classification , Autriche/épidémiologie , Survie sans rechute , Femelle , Humains , Incidence , Mâle , Adulte d'âge moyen , Études rétrospectives , Facteurs de risque , Taux de survie , Résultat thérapeutique
19.
Eur J Haematol ; 95(1): 75-82, 2015 Jul.
Article de Anglais | MEDLINE | ID: mdl-25546348

RÉSUMÉ

Primary central nervous system lymphoma (PCNSL) is a rare and malignant tumour type. Established treatment approaches include high-dose methotrexate (HD-MTX)-based chemotherapy and whole-brain radiotherapy (WBRT). WBRT is associated with significant neurotoxicity and autologous haematopoietic stem cell transplantation (ASCT) has been proposed as an alternative treatment - either in the 1st line setting after HD-MTX-based chemotherapy or as salvage treatment for relapsed/refractory PCNSL. We here report our single-centre experience with five PCNSL patients, who had achieved an objective response after a high-dose methotrexate-based induction therapy and consecutively received a high-dose chemotherapy, consisting of carmustine and thiotepa, followed by ASCT. We also provide a literature review on ASCL for PCNSL. Our data, with three of five patients in continuous complete remission and four of five patients alive after a median follow-up time of 8 months, as well as previously published results, show that ASCT is a safe treatment option that is able to induce tumour remissions in patients with PCNSL. However, controlled trials are needed to compare the long-term efficacy and tolerability of ASCT with other treatment approaches and also to establish the optimal sequence of treatment regimens in PCNSL patients.


Sujet(s)
Protocoles de polychimiothérapie antinéoplasique/administration et posologie , Tumeurs du système nerveux central/thérapie , Transplantation de cellules souches hématopoïétiques , Chimiothérapie d'induction/méthodes , Lymphome malin non hodgkinien/thérapie , Méthotrexate/usage thérapeutique , Adulte , Carmustine/usage thérapeutique , Tumeurs du système nerveux central/mortalité , Tumeurs du système nerveux central/anatomopathologie , Femelle , Humains , Lymphome malin non hodgkinien/mortalité , Lymphome malin non hodgkinien/anatomopathologie , Mâle , Adulte d'âge moyen , Études rétrospectives , Thiotépa/usage thérapeutique , Transplantation autologue
20.
Ann Hematol ; 93(10): 1629-36, 2014 Oct.
Article de Anglais | MEDLINE | ID: mdl-24997682

RÉSUMÉ

Prognostic factors and outcomes of cancer patients with acute organ failure receiving chemotherapy (CT) in the intensive care unit (ICU) are still incompletely described. We therefore retrospectively studied all patients who received CT in any ICU of our institution between October 2006 and November 2013. Fifty-six patients with hematologic (n = 49; 87.5 %) or solid (n = 7; 12.5 %) malignancies, of which 20 (36 %) were diagnosed in the ICU, were analyzed [m/f ratio, 33:23; median age, 47 years (IQR 32 to 62); Charlson Comorbidity Index (CCI), 3 (2 to 5); Simplified Acute Physiology Score II (SAPS II), 50 (39 to 61)]. The main reasons for admission were acute respiratory failure, acute kidney failure, and septic shock. Mechanical ventilation and vasopressors were employed in 34 patients (61 %) respectively, hemofiltration in 22 (39 %), and extracorporeal life support in 7 (13 %). Twenty-seven patients (48 %) received their first CT in the ICU. Intention of therapy was cure in 46 patients (82 %). Tumor lysis syndrome (TLS) developed in 20 patients (36 %). ICU and hospital survival was 75 and 59 %. Hospital survivors were significantly younger; had lower CCI, SAPS II, and TLS risk scores; presented less often with septic shock; were less likely to develop TLS; and received vasopressors, hemofiltration, and thrombocyte transfusions in lower proportions. After discharge, 88 % continued CT and 69 % of 1-year survivors were in complete remission. Probability of 1- and 2-year survival was 41 and 38 %, respectively. Conclusively, administration of CT in selected ICU cancer patients was feasible and associated with considerable long-term survival as well as long-term disease-free survival.


Sujet(s)
Protocoles de polychimiothérapie antinéoplasique/usage thérapeutique , Soins de réanimation , Tumeurs/traitement médicamenteux , Atteinte rénale aigüe/étiologie , Atteinte rénale aigüe/thérapie , Adulte , Sujet âgé , Autriche/épidémiologie , Transfusion de composants du sang/statistiques et données numériques , Neutropénie fébrile induite par la chimiothérapie/traitement médicamenteux , Neutropénie fébrile induite par la chimiothérapie/étiologie , Soins de réanimation/statistiques et données numériques , Survie sans rechute , Coagulation intravasculaire disséminée/étiologie , Oxygénation extracorporelle sur oxygénateur à membrane/statistiques et données numériques , Femelle , Facteur de stimulation des colonies de granulocytes/usage thérapeutique , Tumeurs hématologiques/complications , Tumeurs hématologiques/traitement médicamenteux , Tumeurs hématologiques/mortalité , Hémofiltration/statistiques et données numériques , Mortalité hospitalière , Hôpitaux universitaires/statistiques et données numériques , Humains , Unités de soins intensifs/statistiques et données numériques , Estimation de Kaplan-Meier , Mâle , Adulte d'âge moyen , Tumeurs/complications , Tumeurs/diagnostic , Tumeurs/mortalité , Pronostic , Induction de rémission , Ventilation artificielle/statistiques et données numériques , Insuffisance respiratoire/étiologie , Insuffisance respiratoire/thérapie , Études rétrospectives , Indice de gravité de la maladie , Choc septique/traitement médicamenteux , Choc septique/étiologie , Choc septique/thérapie , Syndrome de lyse tumorale/épidémiologie , Syndrome de lyse tumorale/étiologie , Vasoconstricteurs/usage thérapeutique
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