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When Is Arteriovenous Fistula Dangerous for Hemodialysis Patients? 什么时候动静脉瘘对血液透析患者有危险?
Pub Date : 2022-02-14 DOI: 10.3390/kidneydial2010010
J. Malík
Hemodialysis arteriovenous fistula is a shortcut of the systemic circulation and sometimes fistula flow exceeds 2 L/min. Possible hemodynamic and clinical consequences are discussed.
血液透析动静脉瘘是系统循环的捷径,有时瘘流量超过2L/min。讨论了可能的血液动力学和临床后果。
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引用次数: 1
Peritoneal Dialysis and the Role of Exercise Training Interventions 腹膜透析和运动训练干预的作用
Pub Date : 2022-02-11 DOI: 10.3390/kidneydial2010007
O. Iyasere, H. Young, J. Burton
People receiving peritoneal dialysis (PrPD) tend to be physically inactive, with consequent adverse outcomes including increased mortality, reduced technique, and hospitalization free survival. Exercise is a form of planned physical activity which has the potential to improve these outcomes. Feasibility studies suggest that exercise interventions are safe in PrPD. However, the uptake of exercise is low. In this review, we explore the benefits of exercise in this population, noting the limitations in the existing evidence. We highlight the challenges and uncertainties associated with exercise, including the perceptions of patients and clinicians. Finally, the opportunities for increasing exercise uptake are discussed, alongside future research priorities.
接受腹膜透析(PrPD)的患者往往缺乏运动,随之而来的不良后果包括死亡率增加、技术降低和免住院生存期。锻炼是一种有计划的身体活动,有可能改善这些结果。可行性研究表明,运动干预对PrPD是安全的。然而,运动的摄入量很低。在这篇综述中,我们探讨了锻炼对这一人群的益处,并指出了现有证据的局限性。我们强调了与锻炼相关的挑战和不确定性,包括患者和临床医生的看法。最后,讨论了增加运动摄入量的机会,以及未来的研究重点。
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引用次数: 1
Reflections on the KDIGO Definition of Acute Kidney Injury and Its Integration in the Concept of Acute Diseases and Disorders and Chronic Kidney Diseases KDIGO对急性肾损伤的定义及其与急性疾病和慢性肾脏疾病概念整合的思考
Pub Date : 2022-02-11 DOI: 10.3390/kidneydial2010008
N. Lameire
Acute kidney injury (AKI) describes a heterogeneous group of conditions, without specification of their etiology and diagnosed only by indirect markers of glomerular filtration rate (GFR), such as serum creatinine and urine output. Bedside estimation of GFR and detection of structural alterations with novel biomarkers, and stress tests have more recently been developed. These novel findings should probably be included in future AKI definitions. Chronic kidney disease (CKD) is defined by abnormalities in kidney function and structure that persist over >3 months and is classified according to cause, GFR, and albuminuria. Acute kidney disease (AKD) is the term representing patients with abnormalities of function and structure with a duration of ≤3 months that fall outside the definitions of AKI or CKD. Since AKI is by definition also AKD, 2 types of AKD have been proposed, one with and one without AKI. AKD without AKI is common, often undetected, occurs frequently in the outpatient population and shows increased risk of CKD, ESKD and mortality. Alternatively, AKD has also been defined as the period of incomplete recovery following an AKI episode, the latter limited for the duration of 7 days. This contribution discusses the pros and cons of the existence of these 2 definitions of AKD.
急性肾损伤(AKI)描述了一组异质性疾病,没有明确其病因,仅通过肾小球滤过率(GFR)的间接标志物(如血清肌酐和尿量)进行诊断。GFR的床边估计和用新的生物标志物检测结构变化,以及压力测试最近已经开发出来。这些新发现可能会被纳入未来AKI的定义中。慢性肾脏疾病(CKD)是指持续超过3个月的肾功能和结构异常,并根据病因、肾小球滤过率和蛋白尿进行分类。急性肾脏疾病(AKD)是指持续时间≤3个月的功能和结构异常患者,不属于AKI或CKD的定义。由于AKI在定义上也是AKD,因此已经提出了两种类型的AKD,一种带有AKI,另一种不带有AKI。无AKI的AKD很常见,通常未被发现,在门诊人群中经常发生,并显示CKD、ESKD和死亡率的风险增加。或者,AKD也被定义为AKI发作后的不完全恢复期,后者的持续时间为7天。这篇文章讨论了AKD这两个定义存在的利弊。
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引用次数: 1
Why Does Vascular Access Dysfunction Occur despite Brachial Artery Blood Flow Being Higher than Preset Blood Flow? 为什么尽管肱动脉血流量高于预设血流量,血管通路仍会出现功能障碍?
Pub Date : 2022-01-14 DOI: 10.3390/kidneydial2010005
Jun-ichi Ono, Takushi Oiwa, Y. Ogasawara, S. Mochizuki
Background: In recent years, many reports have investigated the usefulness of brachial artery blood flow (BAF) measured by ultrasonography as an evaluation index for the vascular access (VA) stenosis of hemodialysis patients. However, the mechanism of VA dysfunction, despite BAF being higher than the preset blood flow, has not been clarified to date. Methods: The relationship between actual blood-removal flow and recirculation rate with decreasing VA flow was examined using a VA flow path model and pure water as a model fluid. The blood-flow rate was set at 180 mL/min, and the set VA flow rate was lowered stepwise from 350 to 50 mL/min. VA flow rate, blood-removal flow rate, and flow waveform measured between two needle-puncture sites were recorded, and then the actual blood-removal flow rate and recirculation rate were calculated. Results: Recirculation was observed at a VA flow rate < 300 mL/min. The recirculation was due to the VA flow rate, which was transiently reduced to the level below the blood-removal flow rate, resulting in backflow. In contrast, no decrease in the actual blood-removal flow rate was observed. Conclusion: It is suggested that the mechanism of the VA dysfunction, despite the BAF being higher than the preset blood-flow rate, was due to the diastolic BAF being lower than the blood-removal flow rate.
背景:近年来,许多报道探讨了超声测量肱动脉血流(BAF)作为血液透析患者血管通路(VA)狭窄的评价指标的有效性。然而,尽管BAF高于预设血流量,但VA功能障碍的机制迄今尚未明确。方法:采用VA流道模型,以纯水为模型流体,考察实际血流量和再循环速率随VA流量减小的关系。血流量设定为180 mL/min,设定的VA流量由350 mL/min逐步降低至50 mL/min。记录VA流量、取血流量、两针间测量的血流波形,计算实际取血流量和再循环率。结果:在VA流速< 300 mL/min时出现再循环。再循环是由于VA流量,它暂时降低到低于除血流量的水平,导致回流。相比之下,没有观察到实际血液清除流量的减少。结论:提示尽管BAF高于预设血流量,但导致VA功能障碍的机制是由于舒张BAF低于血流量。
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引用次数: 1
Antisense Oligonucleotide: A Potential Therapeutic Intervention for Chronic Kidney Disease 反义寡核苷酸:慢性肾脏疾病的潜在治疗干预
Pub Date : 2022-01-10 DOI: 10.3390/kidneydial2010004
Yalin Li, Yuqin Tan, Rui Zhang, Tao Wang, N. Na, T. Zheng, R. Veedu, Suxiang Chen
Chronic kidney disease (CKD) is a global public health issue that places an increasing burden on the healthcare systems of both the developed and developing countries. CKD is a progressive and irreversible condition, affecting approximately 10% of the population worldwide. Patients that have progressed to end-stage renal disease (ESRD) require expensive renal replacement therapy, i.e., dialysis or kidney transplantation. Current CKD therapy largely relies on the use of angiotensin-converting enzyme inhibitors (ACEis) and angiotensin receptor blockers (ARBs). However, these treatments by no means halt the progression of CKD to ESRD. Therefore, the development of new therapies is urgently needed. Antisense oligonucleotide (ASO) has recently attracted considerable interest as a drug development platform. Thus far, eight ASO-based drugs have been granted approval by the US Food and Drug Administration for the treatment of various diseases. Herein, we review the ASOs developed for the identification of CKD-relevant genes and/or the simultaneous development of the ASOs as potential therapeutics towards treating CKD.
慢性肾脏病(CKD)是一个全球性的公共卫生问题,给发达国家和发展中国家的医疗保健系统带来了越来越大的负担。CKD是一种进行性和不可逆转的疾病,影响着全球约10%的人口。进展为终末期肾病(ESRD)的患者需要昂贵的肾脏替代治疗,即透析或肾移植。目前的CKD治疗主要依赖于血管紧张素转换酶抑制剂(ACEis)和血管紧张素受体阻滞剂(ARBs)的使用。然而,这些治疗并不能阻止CKD向ESRD的进展。因此,迫切需要开发新的治疗方法。反义寡核苷酸(ASO)作为一种药物开发平台,近年来引起了人们的极大兴趣。到目前为止,已有八种基于ASO的药物获得美国食品和药物管理局的批准,用于治疗各种疾病。在此,我们综述了为鉴定CKD相关基因和/或同时开发ASOs作为治疗CKD的潜在疗法而开发的ASOs。
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引用次数: 0
Prevalence and Factors Associated with Opioid Prescription in Swiss Chronic Hemodialysis Patients 瑞士慢性血液透析患者阿片类药物处方的患病率及相关因素
Pub Date : 2022-01-02 DOI: 10.3390/kidneydial2010003
Clémence Hennebel, Valérie Vilmont, A. Cherpillod, D. Fumeaux, F. Fakhouri, F. Livio, M. Burnier, M. Pruijm
Pain is a common symptom in patients on chronic hemodialysis (HD) but the prevalence of opioid prescriptions in this population has been poorly studied outside the United States. This study assesses the prevalence of opioid prescription in two Swiss dialysis centers. Prescriptions and clinical characteristics were retrospectively retrieved from the medical records of patients on HD for at least six months, treated at Lausanne University Hospital (academic center, AC), and the private center Clinique Cecil (PC) for the study. A total of 117 patients were included; 29.1% received at least one opioid prescription during the study period. Significantly more patients received an opioid prescription in the AC (39.1%) than in the PC (14.6%, p = 0.004). Univariate logistic regression analysis showed that center (Odds Ratio (OR) 3.76; Confidence Interval (CI) 1.48–9.6; p = 0.006), neuropathic pain (OR 2.99; CI 1.28–6.98; p = 0.011), benzodiazepine prescription (OR 2.72; CI 1.14–6.46; p = 0.024), polyneuropathy (OR 2.71; CI 1.14–6.46; p = 0.024) and amputation (OR 4.23; CI 1.1–16.1; p = 0.034) were associated with opioid prescription. The center was the only independent predictive factor in the multivariate analysis. Our results show that opioids are regularly prescribed to Swiss dialysis patients, although important differences exist between centers. The latter finding might suggest that opioid prescribing is more related to the prescriber than to the patient’s condition, but larger-scale studies are necessary to confirm this.
疼痛是慢性血液透析(HD)患者的常见症状,但在美国以外,对这一人群中阿片类药物处方的流行率研究很少。这项研究评估了两个瑞士透析中心阿片类药物处方的流行率。回顾性检索在洛桑大学医院(学术中心,AC)和私人中心Clinique Cecil(PC)接受治疗的HD患者至少六个月的病历中的处方和临床特征。共纳入117名患者;29.1%的患者在研究期间至少服用了一种阿片类药物处方。AC(39.1%)接受阿片类药物处方的患者明显多于PC(14.6%,p=0.004)。单变量逻辑回归分析显示,中心(比值比(OR)3.76;置信区间(CI)1.48–9.6;p=0.006)、神经性疼痛(OR 2.99;CI 1.28-6.98;p=0.011)、苯二氮卓类药物处方(OR 2.72;CI 1.14-6.46;p=0.024)、多发性神经病(OR 2.71;CI 1.14-646;p=0.004)和截肢(OR 4.23;CI 1.1-16.1;p=0.034)与阿片类药物处方有关。该中心是多元分析中唯一独立的预测因素。我们的研究结果表明,瑞士透析患者定期服用阿片类药物,尽管各中心之间存在重要差异。后一项发现可能表明,阿片类药物的处方与处方医生的关系比对患者的病情更大,但有必要进行更大规模的研究来证实这一点。
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引用次数: 0
What Is the Optimal Sodium Concentration in the Dialysate? 透析液中钠的最佳浓度是多少?
Pub Date : 2021-12-31 DOI: 10.3390/kidneydial2010002
Salvador López-Gil, M. Madero
Based on our experience in our hemodiafiltration unit we would recommend a personalized isonatremic dialysate bath. We currently prescribe 137 meq (isonatremic) or delta dialysate Na/serum Na less than 2 meq. In addition to the sodium prescribed in the dialysate, for the majority of our patients we do not restrict dietary sodium or water intake. The average sodium intake is 2775 mg per day and blood pressure is maintained without hypertensive medications. We acknowledge that part of the success for achieving dry weight may not be attributable only to the dialysate sodium but is likely the result of a combination of multiple factors such as convection therapy, cooling of dialysate, close monitoring of volume status during sessions with relative blood volume, presence of a nephrologist during all sessions and assessing volume status regularly with lung ultrasound and bioimpedance. In our experience, exercising during hemodialysis has additionally been associated with better hemodynamic status and less intradialytic hypotension. Moreover, we acknowledge there is little evidence to support a gradient dialysate to serum sodium of less than 2 meq and that our approach may not be optimal.
根据我们在血液滤过装置的经验,我们推荐个性化等钠透析浴。我们目前的处方是137 meq(等钠血)或δ透析液钠/血清钠低于2 meq。除了透析液中规定的钠外,对于大多数患者,我们不限制饮食中钠或水的摄入量。平均钠摄入量为每天2775毫克,无需高血压药物即可维持血压。我们承认,实现干重的部分成功可能不仅仅归因于透析液钠,而可能是多种因素结合的结果,如对流疗法、透析液冷却、在相对血容量期间密切监测容量状态、在所有疗程中都有肾病专家在场,以及定期用肺超声和生物阻抗评估容量状态。根据我们的经验,在血液透析期间运动还与更好的血液动力学状态和更少的透析期低血压有关。此外,我们承认几乎没有证据支持梯度透析至低于2 meq的血清钠,我们的方法可能不是最佳的。
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引用次数: 0
How Would You Prescribe the Dialysate Sodium Concentration for Your Patients? 您将如何为您的患者开具透析液钠浓度处方?
Pub Date : 2021-12-23 DOI: 10.3390/kidneydial2010001
F. Port
Low sodium dialysate was commonly used in the early year of hemodialysis to enhance diffusive sodium removal beyond its convective removal by ultrafiltration. However, disequilibrium syndrome was common, particularly when dialysis sessions were reduced to 4 h. The recent trend of lowering the DNa from the most common level of 140 mEq/L has been associated with intradialytic hypotension and increased risk of hospitalization and mortality. Higher DNa also has disadvantages, such as higher blood pressure and greater interdialytic weight gain, likely due to increased thirst. My assessment of the evidence leads me to choose DNa at the 140 level for most patients and to avoid DNa below 138. Patients with intradialytic symptoms may benefit from DNa 142 mEq/L, if they can avoid excessive fluid weight gains.
在血液透析的早期,通常使用低钠透析液来增强扩散性钠去除,而不是通过超滤进行对流去除。然而,不平衡综合征很常见,尤其是当透析时间减少到4小时时。最近将DNa从最常见的140mEq/L水平降低的趋势与透析内低血压以及住院和死亡风险增加有关。较高的DNa也有缺点,如较高的血压和更大的分析间体重增加,可能是由于口渴加剧。我对证据的评估使我为大多数患者选择140水平的DNa,并避免DNa低于138。如果有透析症状的患者能够避免液体重量过度增加,那么他们可能会从DNa 142 mEq/L中受益。
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引用次数: 1
What Is the Optimal Dialysate Sodium Concentration? 透析液钠的最佳浓度是多少?
Pub Date : 2021-12-14 DOI: 10.3390/kidneydial1020022
E. Lindley, J. Tattersall
In haemodialysis, sodium and fluid balance (where intake matches loss) is achieved by ultrafiltration and by diffusion between the plasma water and dialysate. If a patient’s sodium intake does not change, any reduction in fluid gain obtained by lowering dialysate sodium concentration will result in less sodium removal by ultrafiltration. The corresponding change in diffusion to achieve balance may mean the benefit of lower fluid gain is offset by morbidity caused by a fall in serum sodium during dialysis. The standard dialysate sodium should minimise harm caused by both high ultrafiltration rates and osmotic disequilibrium. For most units, this is likely to be 138 to 140 mmol/L.
在血液透析中,钠和液体的平衡(摄入与损失相匹配)是通过超滤以及血浆水和透析液之间的扩散来实现的。如果患者的钠摄入量没有改变,通过降低透析液钠浓度而获得的液体增加的任何减少都将导致超滤去除的钠减少。实现平衡的扩散的相应变化可能意味着较低液体增加的益处被透析期间血清钠下降引起的发病率所抵消。标准透析液钠应尽量减少高超滤率和渗透不平衡造成的危害。对于大多数单位,这可能是138至140毫摩尔/升。
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引用次数: 1
How to Adjust the Sodium Concentration in Dialysate Individually and Practically? 如何单独、实用地调节透析液中的钠浓度?
Pub Date : 2021-12-14 DOI: 10.3390/kidneydial1020023
Jingjing Zhang
The optimal dialysate sodium concentration for chronic hemodialysis patients remains controversial. Conflicting data from small observational studies and large cohort study data have not convinced nephrologists to choose either a high or low sodium dialysate. Despite a lack of evidence, I would prescribe individualized dialysate sodium concentrations for patients with a risk of hypertension or volume overload, aligning the dialysate sodium concentration with patients’ predialysis serum sodium level. The concentration of dialysate sodium would usually be 0–2 mEq/L below the patient’s serum sodium concentration. I believe that this strategy would help improve hypertension, intradialytic weight gain, cardiac outcomes, and deliver precision medicine.
慢性血液透析患者的最佳透析液钠浓度仍然存在争议。来自小型观察性研究和大型队列研究的相互矛盾的数据并不能说服肾病学家选择高钠或低钠透析液。尽管缺乏证据,我还是会为有高血压或容量过载风险的患者开出个性化的透析液钠浓度处方,使透析液钠的浓度与患者分析前的血清钠水平保持一致。透析液钠的浓度通常比患者的血清钠浓度低0-2 mEq/L。我相信这一策略将有助于改善高血压、透析中体重增加、心脏预后,并提供精准的药物。
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引用次数: 0
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Kidney and dialysis
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