Publications by authors named "Buren M"

Article Synopsis
  • This study explores how electroosmotic flow (EOF) behaves in a two-layer fluid system within a microchannel that has wavy walls.
  • The upper layer is a conducting fluid, while the lower layer is nonconducting, and the analysis involves mathematical techniques like perturbation expansion.
  • Key findings indicate that the flow's velocity distribution is impacted by the relative roughness of the channel walls and the fluid's viscosity; specifically, higher viscosity ratios and other factors generally lead to decreased average flow velocity.
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Background: Impaired cognition, poor health-related quality of life (HRQoL) and depressive symptoms are common in older patients with kidney failure. Understanding what influences HRQoL is important, as older patients regard HRQoL as a health priority. This study examines whether cognitive functioning is associated with HRQoL and whether depressive symptoms mediate this effect in older patients with kidney failure.

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Purpose: This qualitative study explored the experiences of speech-language pathologists (SLPs) in professional learning communities (PLCs) during a year-long virtual professional development (PD) opportunity using an implementation science (IS) framework in an urban public school district for dynamic assessment (DA) training. The DA presented in the PD was modified based on ongoing discussions with key stakeholders in the district, so that it could be reasonably implemented in clinical practice while preserving the integrity of the DA's purpose.

Method: SLPs in an urban district were trained virtually using DA over the course of the school year.

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Rationale & Objective: Older people with progressive chronic kidney disease (CKD) have complex health care needs. Geriatric evaluation preceding decision making for kidney replacement is recommended in guidelines, but implementation is lacking in routine care. We aimed to evaluate implementation of geriatric assessment in CKD care.

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The EOF of a viscoelastic Maxwell fluid driven by an alternating pressure gradient and electric field in a parallel plate microchannel with sinusoidal roughness has been investigated within the Debye-Hückel approximation based on boundary perturbation expansion and separation of variables. Perturbation solutions were obtained for the potential distribution, the velocity and the mean velocity, and the relation between the mean velocity and the roughness. There are significant differences in the velocity amplitudes of the Newtonian and Maxwell fluids.

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Myoclonus is a known side effect of propofol and can interfere with surgery and possibly precipitate patient injury. Here, we report a 23-year-old patient undergoing an L5 osteoblastoma resection with a predominantly propofol-based anaesthetic who developed intra-operative myoclonus. Other adjuncts included ketamine, lidocaine and fentanyl infusions.

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Rationale & Objective: Apathy reflects diminished motivation, goal-directed behavior, and emotions, as well as less engagement in social interactions. Apathy overlaps with depression and is associated with cognitive decline. In the older individuals with chronic kidney disease (CKD), both depression and cognitive impairments are common, but apathy symptoms have been underreported.

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Article Synopsis
  • Conservative care (CC) is an important treatment option for kidney failure, but choosing between CC and dialysis can be complicated and benefits from patient involvement in the decision-making process.
  • A systematic review of 20 articles revealed three main themes: awareness of treatment choices, the support system during decision-making, and the motivation behind choosing CC such as maintaining quality of life and minimizing treatment burden.
  • Overall, patients often felt satisfied with their choice of CC, highlighting the need for improved communication and patient-centered approaches in treatment decisions.
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Aims: Pregnancy after kidney transplantation is realistic but immunosuppressants should be continued to prevent rejection. Tacrolimus is safe during pregnancy and is routinely dosed based on whole-blood predose concentrations. However, maintaining these concentrations is complicated as physiological changes during pregnancy affect tacrolimus pharmacokinetics.

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Background: Patients on haemodialysis (HD) generally experience poor health-related quality of life (HRQoL) and a broad range of physical and mental symptoms, but it is unknown whether this differs between younger and older patients. We aimed to describe the trajectories of HRQoL and symptom burden of patients <70 and ≥70 years old and to assess the impact of symptom burden on HRQoL.

Methods: In incident Dutch HD patients, HRQoL and symptoms were measured with the 12-item Short Form Health Survey and Dialysis Symptom Index.

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Objective: To develop a self-management instrument for organ transplant recipients that incorporates self-regulations skills and to determine its measurement properties.

Methods: The instrument includes concepts from social cognitive models: problem awareness, attitude, self-efficacy, motivation, social support, goal setting, goal pursuit, skills and goal affect. The measurement properties were evaluated based on the COSMIN guidelines.

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For counseling it is important to know if pregnancy after Living Kidney Donation (LKD) affects long-term outcomes of the mono-kidney and the mother. Therefore, we performed a retrospective multicenter study in women ≤45 years who donated their kidney between 1981 and 2017. Data was collected via questionnaires and medical records.

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Introduction: After decades of increasing dialysis incidence, we observed a decreasing trend in the Netherlands in the last decade. We compared this trend with trends in other European countries.

Materials And Methods: Aggregated data for calendar years 2001-2019 from the Dutch registries of kidney replacement therapy patients and the European Renal Association Registry were used.

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Pregnancy after kidney transplantation (KT) conveys risks of adverse pregnancy outcomes (APO). Little is known about performance of pre-pregnancy counselling after KT. This study investigated perceptions of risk, attitudes towards pregnancy and factors influencing advice given at pre-pregnancy counselling after KT.

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Background: Dialysis might not benefit all older patients with kidney failure, particularly those with multimorbid conditions and frailty. Patients' and healthcare professionals' awareness of the presence of geriatric impairments could improve outcomes by tailoring treatment plans and decisions for individual patients.

Objective: We aimed to explore the perspectives of patients and healthcare professionals on nephrology-tailored geriatric assessment to fuel decision-making for treatment choices in older patients with kidney failure.

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Article Synopsis
  • - Supportive care (SC) takes a person-centered approach to managing advanced chronic kidney disease (CKD), focusing on engaging patients and their caregivers in decisions about their care from the beginning.
  • - Instead of concentrating solely on treating the disease, SC includes a variety of supportive interventions that aim to enhance the patient's overall quality of life, especially for older individuals with CKD who often value quality of life more than mere survival.
  • - The review highlights the importance of SC as a complementary strategy to traditional disease-specific treatments for managing advanced CKD among older patients, who often face challenges like frailty and multiple health issues.
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This study analytically investigates the coupled effects of surface charge and boundary slip on the fully developed electroosmotic flow and thermal transfer in parallel plate micro and nanochannels under the high zeta potential. The electric potential, velocity, temperature, flow rate, and Nusselt number are obtained analytically. The main results are that the velocity of bulk flow is significantly reduced in the presence of the surface charge-dependent slip.

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Although numbers of pregnancy after kidney transplantation (KT) are rising, high risks of adverse pregnancy outcomes (APO) remain. Though important for pre-conception counselling and pregnancy monitoring, analyses of pregnancy outcomes after KT per pre-pregnancy estimated glomerular filtration rate-chronic kidney disease (eGFR-CKD)-categories have not been performed on a large scale before. To do this, we conducted a Dutch nationwide cohort study of consecutive singleton pregnancies over 20 weeks of gestation after KT.

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Introduction: Postoperative delirium is a frequent adverse event following elective non-cardiac surgery. The occurrence of delirium increases the risk of functional impairment, placement to facilities other than home after discharge, cognitive impairment at discharge, as well as in-hospital and possibly long-term mortality. Unfortunately, there is a dearth of effective strategies to minimise the risk from modifiable risk factors, including postoperative pain control and the analgesic regimen.

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At a certain point, patients with kidney failure will need to decide whether or not to start kidney replacement therapy, i.e. dialysis or kidney transplantation.

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Background: Central venous catheters (CVC) remain a commonly used vascular access option in haemodialysis, despite guidelines advising to preferably use arteriovenous fistulae. Compared to younger patients, the risk-benefit ratio of CVC in older patients might be more beneficial, but previous studies mainly focussed on catheter-related bacteraemia and/or assessed tunnelled CVC (TCVC) only. This study's aim was to compare all catheter-related infections and malfunctions in older patients with younger patients using all CVC subtypes.

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Background: Non-dialytic conservative care (CC) has been proposed as a treatment option for patients with kidney failure. This systematic review and meta-analysis aims at comparing survival outcomes between dialysis and CC in studies where patients made an explicit treatment choice.

Methods: Five databases were systematically searched from origin through 25 February 2021 for studies comparing survival outcomes among patients choosing dialysis versus CC.

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The prevalence of end-stage kidney disease (ESKD) is rapidly increasing and mostly occurring in patients aged 65 years or older. The main cause of death in these patients is cardiovascular disease (CVD). Novel markers of vascular integrity may thus be of clinical value for identifying patients at high risk for CVD.

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Background: Older patients with advanced chronic kidney disease are at increased risk for a severe course of the coronavirus disease-2019 (COVID-19) and vulnerable to mental health problems. We aimed to investigate prevalence and associated patient (demographic and clinical) characteristics of mental wellbeing (health-related quality of life [HRQoL] and symptoms of depression and anxiety) before and during the COVID-19 pandemic in older patients with advanced chronic kidney disease.

Methods: An ongoing Dutch multicentre prospective cohort study enrols patients of ≥70 years with an eGFR < 20 mL/min/1.

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