Publications by authors named "Smets Y"

Background: An important aspect of end-of-life decisions in dialysis patients is elective withdrawal from dialysis therapy. Several studies have shown that clinical factors, such as comorbidity, play a role in dialysis withdrawal. The role of symptoms of anxiety and depression is largely unknown.

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Objective: To investigate the impact of the coronavirus pandemic on mental health in hemodialysis patients, we assessed depression, anxiety and quality of life with valid mental health measures before and after the start of the pandemic.

Methods: Data were used from 121 hemodialysis patients from the ongoing prospective multicenter DIVERS-II study. COVID-19 related stress was measured with the Perceived Stress Scale - 10, depression with the Beck Depression Inventory - second edition (BDI-II)), anxiety with the Beck Anxiety Inventory (BAI) and quality of life with the Short Form - 12 (SF-12).

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Background: Differences in symptom burden, treatment satisfaction and autonomy between patients receiving peritoneal dialysis and haemodialysis could be reflected by a difference in symptom dimensions of anxiety and depression. The aim of this study is to assess differences in prevalence and symptom dimensions of anxiety and depression between patients receiving peritoneal dialysis and haemodialysis.

Methods: Baseline data from the Depression Related Factors and Outcomes in Dialysis Patients With Various Ethnicities and Races Study were used.

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Objective: To investigate the effectiveness of a guided internet-based self-help intervention for hemodialysis patients with depressive symptoms.

Method: Chronic hemodialysis patients from nine Dutch hospitals with a depression score on the Beck Depression Inventory - second edition (BDI-II) of ≥10, were cluster-randomized into a five modules guided internet-based self-help problem solving therapy intervention or a parallel care-as-usual control group. Clusters were based on hemodialysis shift.

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Background: Studies show mixed results on the association between depressive symptoms and adverse clinical outcomes in patients on dialysis therapy. Ethnicity may play a role in these heterogeneous results. No studies have investigated the interplay between ethnicity and depressive symptoms on clinical outcome in this patient population.

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Rationale & Objective: Anxiety symptoms are common in dialysis patients and have a large impact on quality of life. The association of anxiety symptoms with adverse clinical outcomes in dialysis patients is largely unknown. This study examined the association of anxiety symptoms with hospitalization and mortality in patients receiving maintenance dialysis.

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Objective: Patients undergoing chronic dialysis often display sustained elevations of inflammation markers and also have a high prevalence of depressive symptoms. Although multiple studies demonstrated cross-sectional associations between inflammation markers and depressive symptoms in this patient group, longitudinal associations have not been examined. We therefore investigated whether longitudinal associations exist between inflammation markers and depressive symptoms in chronic dialysis patients.

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Due to continuing migration there is more interest in the mental health status of immigrants. The aim of this study is to determine the prevalence of depressive/anxiety symptoms in immigrant and native dialysis patients, and to explore if patient characteristics can explain differences. The Beck depression inventory and the beck anxiety inventory were used.

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In the Western world, peritoneal dialysis (PD) is less frequently applied as substitute therapy in end-stage renal disease (ESRD). In the Netherlands the use of PD has decreased from 30.3 to 13.

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Objective: Among immigrant chronic dialysis patients, depressive and anxiety symptoms are common. We aimed to examine the association of acculturation, i.e.

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We demonstrate a novel doping mechanism of silicon, namely n-type transfer doping by adsorbed organic cobaltocene (CoCp2*) molecules. The amount of transferred charge as a function of coverage is monitored by following the ensuing band bending via surface sensitive core-level photoelectron spectroscopy. The concomitant loss of electrons in the CoCp2* adlayer is quantified by the relative intensities of chemically shifted Co2p components in core-level photoelectron spectroscopy which correspond to charged and neutral molecules.

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Background: Diabetic muscle infarction is a rare complication of diabetes mellitus that typically presents in the thigh; microvascular abnormalities may play a role.

Case Description: A 32-year-old female presented at the outpatient clinic with a painful, swollen thigh. She had suffered from type 1 diabetes for 22 years.

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A 32-year-old primigravida presented at our emergency room at 6 weeks of gestation with acute severe right upper quadrant abdominal pain, radiating to the right flank. Vital signs were stable. Abdominal ultrasound showed a round inhomogeneous mass of 10 cm diameter behind the right kidney, suspected for adrenal haemorrhage.

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The interaction between zinc-tetraphenylporphyrin (ZnTPP) and fullerenes (C60 and C60F48) are studied using ultraviolet photoelectron spectroscopy (UPS) and scanning tunneling microscopy (STM). Low temperature STM reveals highly ordered ZnTPP monolayers on Au(111). In contrast to C60, a submonolayer coverage of C60F48 results in long-range disorder of the underlying single ZnTPP layer and distortion of individual ZnTPP molecules.

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Surface sensitive C1s core level photoelectron spectroscopy was used to examine the electronic properties of C(60)F(48) molecules on the C(100):H surface. An upward band bending of 0.74 eV in response to surface transfer doping by fluorofullerene molecules is measured.

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Thrombocytopenia in adult patients is usually acquired. Important causes are medication, pregnancy, infections and auto-immune disorders. Here we present 2 patients, a 32-year-old and a 45-year-old man, in whom congenital thrombocytopenia was discovered in adulthood, caused by a mutation in the gene for Wiskott-Aldrich syndrome.

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Background: In type 1 diabetic patients with end-stage renal failure, low bone mass is prevalent and the incidence of fractures high after simultaneous pancreas kidney transplantation (SPK). Data are scarce on preexisting skeletal morbidity or the long-term effects of SPK on bone mass and risk of fractures.

Methods: We conducted a prospective study addressing these issues in 19 consecutive SPK recipients before and at 3, 6, and 12 months, and 2.

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Two alcoholic patients, a woman aged 64 and a man aged 69 years, were admitted with tetany. Both had severe electrolyte disorders, with low plasma levels of calcium, magnesium and potassium. Following mineral supplementation both patients recovered.

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Objective: Mortality in type 1 diabetic patients with end-stage renal failure is high and dominated by coronary atherosclerotic events. With regard to prognosis, simultaneous transplantation of pancreas and kidney (SPK) may be superior to kidney transplantation alone (KTA) in type 1 diabetic patients, because normalization of blood glucose levels may reduce progression of coronary atherosclerosis and because it is well known that progression of coronary atherosclerosis is one of the major factors that determines clinical prognosis. However, no data are available on progression of coronary atherosclerosis after SPK.

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Background: Monitoring of insulin secretion and sensitivity after pancreas transplantation remains a practical problem.

Methods: We introduced the simple structural model, continuous infusion of glucose with model assessment (CIGMA), to obtain insulin secretion and insulin sensitivity estimations after 35 successful simultaneous pancreas-kidney transplantations. Eighteen non-diabetic kidney transplant recipients were used as control group.

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Background: Long-term prognosis of patients with type-1 diabetes mellitus and end-stage renal failure appears to be better after kidney transplantation compared with dialysis. Controversy exists about the additional benefit of a simultaneously transplanted pancreatic graft. We studied the effect on mortality of simultaneous pancreas-kidney transplantation compared with kidney transplantation alone from regional differences in transplantation protocols.

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Background: Simultaneous pancreas-kidney transplantation successfully restores normoglycaemia and corrects uraemia in insulin-dependent diabetes mellitus patients with end-stage renal failure due to diabetic nephropathy. Low bone turnover and cortical osteopenia are often associated with the diabetic state and corticosteroid-induced bone loss, predominantly trabecular, is expected post-transplantation. Little is known, however, about the resultant long-term effects of successful simultaneous pancreas-kidney transplantation on bone mass and consequent fracture rate.

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