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Liu Q, Zheng K, Wang H, Song D, Li X. Changes in serum sodium concentration during hemodialysis is a predictor of mortality and cardio-cerebrovascular event. Ren Fail 2024; 46:2338483. [PMID: 38604948 PMCID: PMC11011235 DOI: 10.1080/0886022x.2024.2338483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 03/29/2024] [Indexed: 04/13/2024] Open
Abstract
BACKGROUND Previous study consistently showed that lower serum sodium (SNa) was associated with a greater risk of mortality in hemodialysis (HD) patients. However, few studies have focused on the change in SNa (ΔSNa = post-HD SNa - pre-HD SNa) during an HD session. METHODS In a retrospective cohort of maintenance HD adults, all-cause mortality and cardio-cerebrovascular event (CCVE) were followed up for a medium of 82 months. Baseline pre-HD SNa and ΔSNa were collected; time-averaged pre-HD SNa and ΔSNa were computed as the mean values within 1-year, 2-year and 3-year intervals after enrollment. Cox proportional hazards models were used to evaluate the relationships of pre-HD and ΔSNa with outcomes. RESULTS Time-averaged pre-HD SNa were associated with all-cause mortality (2-year pre-HD SNa: HR [95% CI] 0.86 [0.74-0.99], p = 0.042) and CCVE (3-year pre-HD SNa: HR [95% CI] 0.83 [0.72-0.96], p = 0.012) with full adjustment. Time-averaged ΔSNa also demonstrated an association with all-cause mortality (3-year ΔSNa: HR [95% CI] 1.26 [1.03-1.55], p = 0.026) as well as with CCVE (3-year ΔSNa: HR [95% CI] 1.51 [1.21-1.88], p = <0.001) when fully adjusted. Baseline pre-HD SNa and ΔSNa didn't exhibit association with both outcomes. CONCLUSIONS Lower time-averaged pre-HD SNa and higher time-averaged ΔSNa were associated with a greater risk of all-cause mortality and CCVE in HD patients.
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Affiliation(s)
- Qixing Liu
- Department of Nephrology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- School of Medicine, Tsinghua University, Beijing, China
| | - Ke Zheng
- Department of Nephrology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Haiyun Wang
- Department of Nephrology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dan Song
- Department of Nephrology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xuemei Li
- Department of Nephrology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Guo Y, Cui W, Ye P, Luo Y. Association between cerebral blood flow variation and cognitive decline in older patients undergoing hemodialysis. Front Aging Neurosci 2024; 16:1457675. [PMID: 39355539 PMCID: PMC11442252 DOI: 10.3389/fnagi.2024.1457675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Accepted: 09/04/2024] [Indexed: 10/03/2024] Open
Abstract
Background The mechanism of cognitive impairment in hemodialysis patients is multifactorial. The relationship between cerebral blood flow and the decline of cognitive function is poorly understood. Objective To investigate the association between cerebral blood flow variation and decline of cognitive function in older patients undergoing hemodialysis. Methods In this prospective observational cohort study of 121 older patients undergoing hemodialysis, we used transcranial Doppler ultrasound (TCD) to measure cerebral arterial mean flow velocity (MFV) throughout dialysis, assessed cognitive function at baseline and 12-month follow-up, and then analyzed associations between MFV and changes on cognitive scores. Results TCD recordings demonstrated a significant reduction in MFV throughout dialysis, which were significantly correlated with cumulative ultrafiltration volume (rho 0.356, p < 0.001), ΔSBP (rho 0.251, p = 0.005), and ΔMAP (rho 0.194, p = 0.032). Compared with the baseline assessments, cognitive scores of participants at the 12-month follow-up were significantly worsened in global cognition (MOCA), some tests of memory (CFT-memory), executive function (TMT-B, SCWT-C, and SCWT-T), attention/processing speed (SDMT), and visuospatial function (CFT-copy) (p < 0.05). The worsening scores in global cognition (MOCA) (β = 0.066, 95% CI 0.018-0.113, p = 0.007) and some tests of memory (AVLT5) (β = 0.050, 95% CI 0.004-0.097, p = 0.035) and executive function (TMT-B, SCWT-C, SCWT-T) (β = 1.955, 95% CI 0.457-3.453, p = 0.011; β = 0.298, 95% CI 0.112-0.484, p = 0.002 and β = 1.371, 95% CI 0.429-2.303, p = 0.004, respectively) were significantly associated with the reduction of MFV. Conclusion Hemodialysis may significantly reduce cerebral blood flow in older patients; Repetitive intradialytic decreases in CBF may be one of the mechanisms underlying the decline of cognitive function. Clinical trial registration https://register.clinicaltrials.gov/prs/app/action/SelectProtocol?sid=S000C5B5&selectaction=Edit&uid=U0003QEL&ts=4&cx=-djoi2.
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Affiliation(s)
- Yidan Guo
- Department of Nephrology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Wei Cui
- Department of Neurology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Pengpeng Ye
- Division of Injury Prevention and Mental Health National Center for Chronic and Non-Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yang Luo
- Department of Nephrology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
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Wolfgram DF, Richerson WT, Murray AM, Schmit BD. Cognitive deficits associate with cerebral hypoxia during hemodialysis. Nephrol Dial Transplant 2024; 39:1526-1528. [PMID: 38688869 PMCID: PMC11361811 DOI: 10.1093/ndt/gfae101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Indexed: 05/02/2024] Open
Affiliation(s)
- Dawn F Wolfgram
- Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
- Milwaukee VA Medical Center, Milwaukee, WI, USA
| | - Wesley T Richerson
- Department of Neurology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Anne M Murray
- Berman Center for Outcomes and Clinical Research and Hennepin Healthcare, Minneapolis, MN, USA
- Department of Medicine, Hennepin Healthcare, Minneapolis, MN, USA
| | - Brian D Schmit
- Department of Biomedical Engineering, Marquette University and Medical College of Wisconsin, Milwaukee, WI, USA
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4
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Patel SM, Venkatesan V, Murray KJ. Dialysis Disequilibrium Syndrome With Cerebral Edema in an Adult Patient Following the Initial Dialysis Session. Cureus 2024; 16:e67823. [PMID: 39328632 PMCID: PMC11424395 DOI: 10.7759/cureus.67823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/26/2024] [Indexed: 09/28/2024] Open
Abstract
Dialysis is a common treatment for removing toxins, electrolytes, and excess fluids due to impaired kidney function. A rare but life-threatening complication that can arise is dialysis disequilibrium syndrome (DDS) with cerebral edema. DDS is characterized by a range of neurological symptoms that may occur following dialysis. Its incidence is not well-established because it often presents with nonspecific symptoms, making diagnosis challenging. Here, we present a case of a 64-year-old female with a history of hypertension and chronic kidney disease stage 5, who sought evaluation for nausea and vomiting with coffee-ground emesis that began three weeks prior. Despite an initial blood transfusion stabilizing her hemoglobin with no further hematemesis, she developed DDS with cerebral edema after her first dialysis session. The condition was managed with 3% hypertonic saline, which quickly resolved both her cerebral edema and neurological symptoms. She tolerated subsequent dialysis sessions without complications and was discharged with a follow-up arranged with nephrology and an outpatient dialysis chair. This case report reviews the clinical features, risk factors, pathophysiology, management, and treatment goals for DDS. In patients commencing dialysis, particular attention should be given to preventing DDS, especially in those with elevated blood urea nitrogen levels above 100 mg/dL. Prompt recognition and treatment are crucial to balance the osmotic gradient and prevent severe outcomes, such as cerebral edema and death.
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Affiliation(s)
- Sahil M Patel
- Internal Medicine, Brookwood Baptist Health, Birmingham, USA
| | | | - Kenny J Murray
- Internal Medicine, Brookwood Baptist Health, Birmingham, USA
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5
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Mutsuyoshi Y, Ito K, Ookawara S, Ueda Y, Shindo M, Hirata M, Nonaka H, Morino J, Kaneko S, Kitano T, Miyazawa H, Hirai K, Morishita Y. Effects to cerebral oxygenation by arteriovenous fistula creation in patients with chronic kidney disease. J Vasc Access 2024:11297298241257431. [PMID: 38825801 DOI: 10.1177/11297298241257431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2024] Open
Abstract
BACKGROUND Vascular access, including arteriovenous fistula (AVF), is essential in patients undergoing hemodialysis (HD). However, the presence of AVF is non-physiological in humans and could pose a burden to the systemic circulation or tissue microcirculation, potentially affecting tissue oxygenation, including in the brain. Recently, near-infrared spectroscopy has been used to measure regional oxygen saturation (rSO2) as a marker of cerebral oxygenation in various settings, including in patients undergoing HD. Thus far, no studies have reported changes in cerebral rSO2 before and after AVF creation. This study aimed to monitor the differences in cerebral oxygenation before and after AVF creation and to clarify the clinical factors affecting the changes in cerebral rSO2. METHODS Forty-eight patients (34 men, 14 women) with chronic kidney disease (CKD) who were not undergoing dialysis and newly created AVF were recruited. Cerebral rSO2 values before and after AVF creation were evaluated using near-infrared spectroscopy (INVOS 5100c). RESULTS Cerebral rSO2 values were significantly changed from 60.3% ± 7.5% to 58.4% ± 6.8% before and after AVF creation in all patients (p < 0.001). Cerebral rSO2 were also lower in patients with diabetes mellitus (DM) than in those without DM (57.5 ± 7.1 vs 63.7 ± 6.5, p = 0.003) before surgery; however, no differences of changes in cerebral rSO2 were observed between the two groups after AVF creation. Additionally, multivariate regression analysis identified changes in HR (standardized coefficient: 0.436) as independent factors associated with changes in cerebral rSO2. CONCLUSION Surgically created AVF was associated with the deterioration of cerebral rSO2 in patients with CKD not undergoing dialysis. Notably, AVF could cause cerebral hypoxia, and thus further studies are needed to clarify the clinical factors influencing changes in cerebral oxygenation after AVF creation.
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Affiliation(s)
- Yuko Mutsuyoshi
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Kiyonori Ito
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Susumu Ookawara
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Yuichiro Ueda
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | | | - Momoko Hirata
- Division of Nephrology, Chofu Touzan Hospital, Tokyo, Japan
| | - Hiroaki Nonaka
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Junki Morino
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Shohei Kaneko
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Taisuke Kitano
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Haruhisa Miyazawa
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Keiji Hirai
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Yoshiyuki Morishita
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, Saitama, Japan
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Khatri P, Davenport A. Dialysis for older adults: why should the targets be different? J Nephrol 2024; 37:841-850. [PMID: 38180729 PMCID: PMC11239777 DOI: 10.1007/s40620-023-01835-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/18/2023] [Indexed: 01/06/2024]
Abstract
The number of patients aged > 75-years treated by dialysis continues to increase, particularly in developed countries. Haemodialysis is a well-established treatment with national and international clinical guidelines designed to provide patients with optimal treatment. However, these were developed when the dialysis population was younger, and less co-morbid. This change in patient demographics questions whether these guideline targets still apply to older patients. More patients now start dialysis with residual kidney function and could benefit from a less frequent dialysis schedule. Older patients have a lower thirst drive, so lower interdialytic gains, reduced appetite, muscle mass and physical activity would potentially allow starting dialysis with less frequent sessions a practical option. Similarly, patients with residual kidney function and lower metabolic activity may not need to meet current dialyser Kt/Vurea clearance targets to remain healthy. Instead, some elderly patients may be at risk of malnutrition and might need liberalisation of the low salt, potassium and phosphate dietary restrictions, or even additional supplements to ensure adequate protein intake. Although a fistula is the preferred vascular access, a forearm fistula may not be an option due to vascular disease, while a brachial fistula can potentially compromise cardiovascular reserve, so a dialysis catheter becomes the de facto access, especially in patients with limited life expectancy. Thus, clinical guideline targets designed for a younger less co-morbid dialysis population may not be equally applicable to the older patient initiating dialysis, and so a more individualised approach to dialysis prescription and vascular access is required.
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Affiliation(s)
- Priyanka Khatri
- Fast and Chronic Programmes, Alexandra Hospital, Queenstown, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Andrew Davenport
- UCL Department of Renal Medicine, Royal Free Hospital, University College London, Rowland Hill Street, London, NW3 2PF, UK.
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Arasnezhad M, Namazinia M, Mazlum SR, Miri K. The effect of ascending- descending ultrafiltration and sodium profiles on blood pressure in hemodialysis patients: a randomized cross-over study. BMC Nephrol 2024; 25:128. [PMID: 38605298 PMCID: PMC11007972 DOI: 10.1186/s12882-024-03554-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 03/20/2024] [Indexed: 04/13/2024] Open
Abstract
BACKGROUND Considering no previous research into the utilization of ascending/descending ultrafiltration and linear sodium profiles in improving blood pressure among hemodialysis patients, the present study aimed to explore the effect of the A/D-UF along with linear sodium profiles on HD patients with hypotension. METHODS Applying a crossover design, this clinical trial was fulfilled between December 2022 and June 2023 on 20 patients undergoing HD, randomized into two groups, each one receiving two intervention protocols, viz., (a) an intervention protocol in which the liquid sodium in the dialysis solution was linear and the UF profiling was A/D, and (b) a routine protocol or HD, wherein both liquid sodium and UF in the dialysis solution remained constant. The HD patients' BP was then checked and recorded at six intervals, namely, before HD, one, two, three, and four hours after it, and following its completion, within each session. The data were further statistically analyzed using the IBM SPSS Statistics 20 and the related tests. RESULTS In total, 20 patients, including 12 men (60%) and 8 women (40%), with the mean age of 58.00 ± 14.54 on HD for an average of 54 months, were recruited in this study. No statistically significant difference was observed in the mean systolic and diastolic BP levels in the group receiving the A/D-UF profile all through the desired hours (p > 0.05), indicating that the patients did not face many changes in these two numbers during HD. Our cross-over clinical trial demonstrated a statistically significant reduction in symptomatic IDH episodes from 55 to 15% with the application of the A/D-UF profile (p < 0.05). CONCLUSION The study demonstrated that the A/D-UF profile could contribute to the stability of blood pressure levels among HD patients, with no significant fluctuations observed during treatment sessions. TRIAL REGISTRATION This study was registered in the Iranian Registry of Clinical Trials (no. IRCT20180429039463N5) on 07/01/2023.
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Affiliation(s)
- Morteza Arasnezhad
- 9 Dey Educational Hospital, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
| | - Mohammad Namazinia
- Department of Nursing, School of Nursing and Midwifery, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran.
| | - Seyyed Reza Mazlum
- Department of Medical Surgical Nursing, School of Nursing and Midwifery, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Kheizaran Miri
- Department of Nursing, School of Nursing and Midwifery, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran.
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Sethi SK, Luyckx V, Bunchman T, Nair A, Bansal SB, Pember B, Soni K, Savita, Yadav DK, Sharma V, Alhasan K, Raina R. Prevention of dialysis disequilibrium syndrome in children with advanced uremia with a structured hemodialysis protocol: A quality improvement initiative study. Hemodial Int 2024; 28:216-224. [PMID: 38504636 DOI: 10.1111/hdi.13147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/29/2024] [Accepted: 03/04/2024] [Indexed: 03/21/2024]
Abstract
BACKGROUND Dialysis disequilibrium syndrome (DDS) is a rare but significant concern in adult and pediatric patients undergoing dialysis initiation with advanced uremia or if done after an interval. It is imperative to gain insights into the epidemiological patterns, pathophysiological mechanisms, and preventive strategies aimed at averting the onset of this ailment. DESIGN Prospective observational quality improvement initiative cohort study. SETTING AND PARTICIPANTS A prospective single-center study involving 50 pediatric patients under 18 years recently diagnosed with chronic kidney disease stage V with blood urea ≥200 mg/dL, admitted to our tertiary care center for dialysis initiation from January 2017 to October 2023. QUALITY IMPROVEMENT PLAN A standardized protocol was developed and followed for hemodialysis in pediatric patients with advanced uremia. This protocol included measures such as lower urea reduction ratios (targeted at 20%-30%) with shorter dialysis sessions and linear dialysate sodium profiling. Prophylactic administration of mannitol and 25% dextrose was also done to prevent the incidence of dialysis disequilibrium syndrome. MEASURES Incidence of dialysis disequilibrium syndrome and severe dialysis disequilibrium syndrome, mortality, urea reduction ratios (URRs), neurological outcome at discharge, and development of complications such as infection and hypotension. Long-term outcomes were assessed at the 1-year follow-up including adherence to dialysis, renal transplantation, death, and loss to follow-up. RESULTS The median serum creatinine and urea levels at presentation were 7.93 and 224 mg/dL, respectively. A total of 20% of patients had neurological symptoms attributable to advanced uremia at the time of presentation. The incidence of dialysis disequilibrium syndrome was 4% (n = 2) with severe dialysis disequilibrium syndrome only 2% (n = 1). Overall mortality was 8% (n = 4) but none of the deaths were attributed to dialysis disequilibrium syndrome. The mean urea reduction ratios for the first, second, and third dialysis sessions were 23.45%, 34.56%, and 33.50%, respectively. The patients with dialysis disequilibrium syndrome were discharged with normal neurological status. Long-term outcomes showed 88% adherence to dialysis and 38% renal transplantation. LIMITATIONS This study is characterized by a single-center design, nonrandomized approach, and limited sample size. CONCLUSIONS Our structured protocol served as a framework for standardizing procedures contributing to low incidence rates of dialysis disequilibrium syndrome.
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Affiliation(s)
- Sidharth Kumar Sethi
- Pediatric Nephrology, Kidney Institute, Medanta, The Medicity, Gurgaon, Haryana, India
| | - Valerie Luyckx
- Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Department of Paediatrics and Child Health, University of Cape Town, Cape Town, South Africa
- Department of Public and Global Health, Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Zurich, Switzerland
| | - Timothy Bunchman
- Pediatric Nephrology, Children's Hospital of Richmond at VCU, Richmond, Virginia, USA
| | - Aishwarya Nair
- Pediatric Nephrology, Kidney Institute, Medanta, The Medicity, Gurgaon, Haryana, India
| | | | - Bryce Pember
- Northeast Ohio Medical University, Rootstown, Ohio, USA
| | - Kritika Soni
- Pediatric Nephrology, Kidney Institute, Medanta, The Medicity, Gurgaon, Haryana, India
| | - Savita
- Pediatric Nephrology, Kidney Institute, Medanta, The Medicity, Gurgaon, Haryana, India
| | | | - Vivek Sharma
- Department of Radiology, Medanta, The Medicity, Gurgaon, Haryana, India
| | - Khalid Alhasan
- Pediatric Department, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Rupesh Raina
- Pediatric Nephrology, Akron Children's Hospital, Cleveland, Ohio, USA
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Tsuruya K, Yoshida H. Cognitive Impairment and Brain Atrophy in Patients with Chronic Kidney Disease. J Clin Med 2024; 13:1401. [PMID: 38592226 PMCID: PMC10931800 DOI: 10.3390/jcm13051401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/19/2024] [Accepted: 02/27/2024] [Indexed: 04/10/2024] Open
Abstract
In Japan, the aging of the population is rapidly accelerating, with an increase in patients with chronic kidney disease (CKD) and those undergoing dialysis. As a result, the number of individuals with cognitive impairment (CI) is rising, and addressing this issue has become an urgent problem. A notable feature of dementia in CKD patients is the high frequency of vascular dementia, making its prevention through the management of classical risk factors such as hypertension, diabetes mellitus, dyslipidemia, smoking, etc., associated with atherosclerosis and arteriosclerosis. Other effective measures, including the use of renin-angiotensin system inhibitors, addressing anemia, exercise therapy, and lifestyle improvements, have been reported. The incidence and progression of CI may also be influenced by the type of kidney replacement therapy, with reports suggesting that long-duration dialysis, low-temperature hemodialysis, peritoneal dialysis, and kidney transplantation can have a preferable effect on the preservation of cognitive function. In conclusion, patients with CKD are at a higher risk of developing CI, with brain atrophy being a contributing factor. Despite the identification of various preventive measures, the evidence substantiating their efficacy remains limited across all studies. Future expectations lie in large-scale randomized controlled trials.
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Affiliation(s)
- Kazuhiko Tsuruya
- Department of Nephrology, Nara Medical University, Kashihara 634-8521, Nara, Japan
| | - Hisako Yoshida
- Department of Medical Statistics, Osaka Metropolitan University Graduate School of Medicine, Osaka 545-8585, Osaka, Japan;
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10
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Curtis KA, Waikar SS, Mc Causland FR. Higher NT-proBNP levels and the risk of intradialytic hypotension at hemodialysis initiation. Hemodial Int 2024; 28:77-84. [PMID: 37875429 DOI: 10.1111/hdi.13125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 10/09/2023] [Accepted: 10/11/2023] [Indexed: 10/26/2023]
Abstract
INTRODUCTION Elevated N-terminal pro B-type natriuretic peptide (NT-proBNP) is a potent predictor of adverse outcomes in hemodialysis initiation. These patients often experience intradialytic hypotension, which may partially reflect cardiac dysfunction, but the association of NT-proBNP with intradialytic hypotension is not clear. METHODS We performed a post hoc analysis of a randomized trial that tested mannitol versus placebo in 52 patients initiating hemodialysis (NCT01520207). NT-proBNP was measured prior to the first and third sessions (n = 87). Mixed-effects models (adjusting for randomized treatment, sex, race, age, diabetes, heart failure, catheter use, pre-dialysis systolic blood pressure, pre-dialysis weight, ultrafiltration volume, serum sodium, bicarbonate, urea nitrogen, phosphate, albumin, hemoglobin, and session length) were fit to examine the association of NT-proBNP with systolic blood pressure decline (pre-dialysis minus nadir systolic blood pressure). Additionally, mixed-effects Poisson models were fit to examine the association with intradialytic hypotension (≥20 mmHg decline in systolic blood pressure). FINDINGS Mean age was 55 ± 16 years; 33% had baseline heart failure. The median NT-proBNP was 5498 [25th-75th percentile 2011, 14,790] pg/mL; 26 sessions (30%) were complicated by intradialytic hypotension. In adjusted models, each unit higher log-NT-proBNP was associated with 6.0 mmHg less decline in systolic blood pressure (95%CI -9.2 to -2.8). Higher pre-dialysis NT-proBNP, per log-unit, was associated with a 52% lower risk of intradialytic hypotension (IRR 0.48, 95%CI 0.23-0.97), without evidence for effect modification by randomized treatment (P-interaction = 0.17). DISCUSSION In patients initiating hemodialysis, higher NT-proBNP is associated with less decline in intradialytic systolic blood pressure and lower risk of intradialytic hypotension. Future studies should investigate if higher pre-dialysis NT-proBNP levels may identify patients who might tolerate more aggressive ultrafiltration.
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Affiliation(s)
- Katherine A Curtis
- Division of Renal Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
- Milken Institute School of Public Health, The George Washington University, Washington DC, USA
| | - Sushrut S Waikar
- Renal Section, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Finnian R Mc Causland
- Division of Renal Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
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11
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Gaffney S, Kelly DM, Rameli PM, Kelleher E, Martin-Loeches I. Invasive pulmonary aspergillosis in the intensive care unit: current challenges and best practices. APMIS 2023; 131:654-667. [PMID: 37022291 DOI: 10.1111/apm.13316] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 04/02/2023] [Indexed: 04/07/2023]
Abstract
The prevalence of invasive pulmonary aspergillosis (IPA) is growing in critically ill patients in the intensive care unit (ICU). It is increasingly recognized in immunocompetent hosts and immunocompromised ones. IPA frequently complicates both severe influenza and severe coronavirus disease 2019 (COVID-19) infection. It continues to represent both a diagnostic and therapeutic challenge and can be associated with significant morbidity and mortality. In this narrative review, we describe the epidemiology, risk factors and disease manifestations of IPA. We discuss the latest evidence and current published guidelines for the diagnosis and management of IPA in the context of the critically ill within the ICU. Finally, we review influenza-associated pulmonary aspergillosis (IAPA), COVID-19-associated pulmonary aspergillosis (CAPA) as well as ongoing and future areas of research.
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Affiliation(s)
- Sarah Gaffney
- Department of Intensive Care Medicine, Multidisciplinary Intensive Care Research Organization (MICRO), St. James's Hospital, Dublin, Ireland
| | - Dearbhla M Kelly
- Department of Intensive Care Medicine, Multidisciplinary Intensive Care Research Organization (MICRO), St. James's Hospital, Dublin, Ireland
| | - Puteri Maisarah Rameli
- Department of Intensive Care Medicine, Multidisciplinary Intensive Care Research Organization (MICRO), St. James's Hospital, Dublin, Ireland
| | - Eoin Kelleher
- Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Ignacio Martin-Loeches
- Department of Intensive Care Medicine, Multidisciplinary Intensive Care Research Organization (MICRO), St. James's Hospital, Dublin, Ireland
- Department of Clinical Medicine, School of Medicine, Trinity College Dublin, Dublin, Ireland
- Hospital Clinic, Institut D'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Universidad de Barcelona, Barcelona, Spain
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12
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Maduell F, Broseta JJ, Casals J, Gómez M, Rodas LM, Arias-Guillén M, Vera M, Fontseré N. Conductivity variations and changes in serum sodium concentration during dialysis related to monitor switching. Nefrologia 2023; 43:750-756. [PMID: 38242765 DOI: 10.1016/j.nefroe.2024.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 06/29/2022] [Accepted: 08/01/2022] [Indexed: 01/21/2024] Open
Abstract
INTRODUCTION The sodium gradient during hemodialysis sessions is one of the key factors in sodium balance in patients with dialysis-dependent chronic kidney disease; however, until the appearance of the new monitors with sodium modules, the differences between prescribed and measured sodium have been understudied. The present study aimed to compare the impact on the measured conductivity and the initial and final plasma sodium after changing the 5008 Cordiax to the new 6008 Cordiax monitor. MATERIAL AND METHODS 106 patients on hemodialysis were included. Each patient underwent 2 dialysis sessions in which only the monitor was varied. The variables collected were dialysate, sodium and bicarbonate prescribed, real conductivity, initial and final plasma sodium measured, and the calculated sodium gradient (ΔPNa). RESULTS The change of dialysis monitor showed small but statistically significant differences in the initial (138.14mmol/L with 5008 vs. 138.81mmol/L with 6008) and final plasma sodium (139.58mmol/L vs. 140.97mmol/L), as well as in the actual conductivity obtained (13.97 vs. 14.1mS/cm). The ΔPNa also increased significantly. CONCLUSION The change from 5008 to 6008 monitor is associated with increased conductivity, leading the patient to end the sessions with higher plasma sodium and ΔPNa. Knowing and confirming this change will allow us to individualize the sodium prescription and avoid possible undesirable effects. It could be the preliminary study to explore the new sodium biosensor incorporated into the new generation of monitors.
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Affiliation(s)
- Francisco Maduell
- Servicio de Nefrología y Trasplante Renal, Hospital Clínic Barcelona, Barcelona, Spain.
| | - José Jesús Broseta
- Servicio de Nefrología y Trasplante Renal, Hospital Clínic Barcelona, Barcelona, Spain
| | - Joaquim Casals
- Servicio de Nefrología y Trasplante Renal, Hospital Clínic Barcelona, Barcelona, Spain
| | - Miquel Gómez
- Servicio de Nefrología y Trasplante Renal, Hospital Clínic Barcelona, Barcelona, Spain
| | - Lida M Rodas
- Servicio de Nefrología y Trasplante Renal, Hospital Clínic Barcelona, Barcelona, Spain
| | - Marta Arias-Guillén
- Servicio de Nefrología y Trasplante Renal, Hospital Clínic Barcelona, Barcelona, Spain
| | - Manel Vera
- Servicio de Nefrología y Trasplante Renal, Hospital Clínic Barcelona, Barcelona, Spain
| | - Néstor Fontseré
- Servicio de Nefrología y Trasplante Renal, Hospital Clínic Barcelona, Barcelona, Spain
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13
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Bossola M, Hedayati SS, Brys ADH, Gregg LP. Fatigue in Patients Receiving Maintenance Hemodialysis: A Review. Am J Kidney Dis 2023; 82:464-480. [PMID: 37187283 DOI: 10.1053/j.ajkd.2023.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 02/15/2023] [Indexed: 05/17/2023]
Abstract
Fatigue surrounding hemodialysis treatments is a common and often debilitating symptom that impacts patients' quality of life. Intradialytic fatigue develops or worsens immediately before hemodialysis and persists through the dialysis treatment. Little is known about associated risk factors or pathophysiology, although it may relate to a classic conditioning response. Postdialysis fatigue (PDF) develops or worsens after hemodialysis and may persist for hours. There is no consensus on how to measure PDF. Estimates for the prevalence of PDF range from 20%-86%, likely due to variation in methods of ascertainment and participant characteristics. Several hypotheses seek to explain the pathophysiology of PDF, including inflammation, hypothalamic-pituitary-adrenal axis dysregulation, and osmotic and fluid shifts, but none is currently supported by compelling or consistent data. PDF is associated with several clinical factors, including cardiovascular and hemodynamic effects of the dialysis procedure, laboratory abnormalities, depression, and physical inactivity. Clinical trials have reported hypothesis-generating data about the utility of cold dialysate, frequent dialysis, clearance of large middle molecules, treatment of depression, and exercise as potential treatments. Existing studies are often limited by sample size, lack of a control group, observational design, or short intervention duration. Robust studies are needed to establish the pathophysiology and management of this important symptom.
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Affiliation(s)
- Maurizio Bossola
- Hemodialysis Service, Division of Nephrology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy.
| | - S Susan Hedayati
- Division of Nephrology, Department of Medicine, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Astrid D H Brys
- Department of Internal Medicine, Maastricht University Medical Center, Maastricht, the Netherlands
| | - L Parker Gregg
- Research Service Line, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas; Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas; Veterans Affairs Health Services Research and Development Center for Innovations in Quality, Effectiveness and Safety, Houston, Texas
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14
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Pépin M, Klimkowicz-Mrowiec A, Godefroy O, Delgado P, Carriazo S, Ferreira AC, Golenia A, Malyszko J, Grodzicki T, Giannakou K, Paolisso G, Barbieri M, Garneata L, Mocanu CA, Liabeuf S, Spasovski G, Zoccali C, Bruchfeld A, Farinha A, Arici M, Capasso G, Wiecek A, Massy ZA. Cognitive disorders in patients with chronic kidney disease: Approaches to prevention and treatment. Eur J Neurol 2023; 30:2899-2911. [PMID: 37326125 DOI: 10.1111/ene.15928] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 06/12/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Cognitive impairment is common in patients with chronic kidney disease (CKD), and early intervention may prevent the progression of this condition. METHODS Here, we review interventions for the complications of CKD (anemia, secondary hyperparathyroidism, metabolic acidosis, harmful effects of dialysis, the accumulation of uremic toxins) and for prevention of vascular events, interventions that may potentially be protective against cognitive impairment. Furthermore, we discuss nonpharmacological and pharmacological methods to prevent cognitive impairment and/or minimize the latter's impact on CKD patients' daily lives. RESULTS A particular attention on kidney function assessment is suggested during work-up for cognitive impairment. Different approaches are promising to reduce cognitive burden in patients with CKD but the availabe dedicated data are scarce. CONCLUSIONS There is a need for studies assessing the effect of interventions on the cognitive function of patients with CKD.
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Affiliation(s)
- Marion Pépin
- INSERM (Institut National de la Santé et de la recherche médicale) Unit 1018, Clinical Epidemiology, CESP (Centre d'Epidemiologie et de Santé des Populations), Hôpital Paul Brousse, Paris-Saclay University and Versailles Saint-Quentin-en-Yvelines University, Villejuif, France
- Department of Geriatrics, Ambroise Paré University Hospital, APHP (Assistance Publique - Hôpitaux de Paris), Boulogne-Billancourt/Paris, France
| | | | - Olivier Godefroy
- Department of Neurology, Amiens University Hospital, and Laboratory of Functional Neurosciences (Research Unit 4559), Jules Verne University of Picardie (UPJV), Amiens, France
| | - Pilar Delgado
- Department of Neurology, Vall d'Hebron Hospital, Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Sol Carriazo
- Department of Nephrology and Hypertension, Instituto de Investigacion Sanitaria (IIS)-Fundacion Jimenez Diaz, Autonomous University of Madrid (UAM), Madrid, Spain
| | - Ana Carina Ferreira
- Department of Nephrology, Centro Hospitalar e Universitário de Lisboa Central-Hospital Curry Cabral, Lisbon, Portugal
- Universidade Nova de Lisboa-Faculdade de Ciências Médicas-Nephology, Lisbon, Portugal
| | | | - Jolanta Malyszko
- Department of Nephrology, Dialysis, and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Tomasz Grodzicki
- Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, Cracow, Poland
| | - Konstantinos Giannakou
- Department of Health Sciences, School of Sciences, European University Cyprus, Nicosia, Cyprus
| | - Giuseppe Paolisso
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
- UniCAMILLUS, International Medical University, Roma, Italy
| | - Michelangela Barbieri
- Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Liliana Garneata
- Department of Internal Medicine and Nephrology, "Carol Davila" University of Medicine and Pharmacy, "Dr Carol Davila" Teaching Hospital of Nephrology, Bucharest, Romania
| | - Carmen Antonia Mocanu
- Department of Internal Medicine and Nephrology, "Carol Davila" University of Medicine and Pharmacy, "Dr Carol Davila" Teaching Hospital of Nephrology, Bucharest, Romania
| | - Sophie Liabeuf
- Pharmacology Department, Amiens University Medical Center, Amiens, France
- MP3CV (Mécanismes physiopathologiques et Conséquences des Calcifications Cardio-Vasculaires) Laboratory, EA7517, University of Picardie Jules Verne, Amiens, France
| | - Goce Spasovski
- University Department of Nephrology, Clinical Center "Mother Theresa", University of Saints Cyril and Methodius, Skopje, North Macedonia
| | - Carmine Zoccali
- Renal Research Institute, New York, New York, USA
- Associazione Ipertensione Nefrologia Trapianto Renale, Reggio Calabria, Italy
| | - Annette Bruchfeld
- Department of Health, Medicine, and Caring Sciences, Linköping University, Linköping, Sweden
- CLINTEC, Renal Medicine, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Ana Farinha
- Department of Nephrology, Centro Hospitalar de Setúbal, Setubal, Portugal
| | - Mustafa Arici
- Department of Internal Medicine, Division of Nephrology, Hacetepe University, Faculty of Medicine, Ankara, Turkey
| | - Giovambattista Capasso
- Biogem (Molecular Biology and Genetics Research Institute), Ariano Irpino, Italy
- Department of Translational Medical Sciences, University of Campania, Naples, Italy
| | - Andrzej Wiecek
- Department of Nephrology, Transplantation, and Internal Medicine, Medical University of Silesia in Katowice, Katowice, Poland
| | - Ziad A Massy
- INSERM (Institut National de la Santé et de la recherche médicale) Unit 1018, Clinical Epidemiology, CESP (Centre d'Epidemiologie et de Santé des Populations), Hôpital Paul Brousse, Paris-Saclay University and Versailles Saint-Quentin-en-Yvelines University, Villejuif, France
- Department of Nephrology, Ambroise Paré University Hospital, APHP, Boulogne-Billancourt/Paris, France
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Xue Y, Wu Z, Li B, Sun G, Jia F, Liu K. Changes in Cerebral Blood Flow in Patients Who Receive Different Durations of Hemodialysis: An Arterial Spin Labeling MRI Study. J Clin Neurol 2023; 19:438-446. [PMID: 37455502 PMCID: PMC10471545 DOI: 10.3988/jcn.2022.0357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 12/26/2022] [Accepted: 12/27/2022] [Indexed: 07/18/2023] Open
Abstract
BACKGROUND AND PURPOSE This study aimed to determine the changes in cerebral blood flow (CBF) in patients who received different durations of hemodialysis (HD) using arterial spin labeling magnetic resonance imaging. METHODS The study included 46 patients who received HD and 24 demographically similar healthy controls (HCs). Patients who received HD were divided into three subgroups based on its duration: HD-1 (n=15, dialysis duration ≤24 months), HD-2 (n=16, dialysis duration >24 and ≤72 months), and HD-3 (n=15, dialysis duration ≥73 months). All subjects completed the Mini Mental State Examination and Montreal Cognitive Assessment tests, and the patients who received HD underwent laboratory tests. Group-level differences in the global and regional CBFs between patients who received HD and HCs were assessed. Correlation analysis was performed to evaluate the associations among CBF, clinical variables, and cognitive function. RESULTS Compared with HCs, global and regional CBFs were significantly increased in the HD-1 and HD-2 groups (p<0.05), but there was no significant difference in the HD-3 group (p>0.05). However, compared with the HD-1 group, the HD-3 group had significantly decreased global and regional CBFs (p<0.05). The cognitive function was worse in patients who received long-term HD than in HCs. Increased dialysis duration and hemoglobin level were predictive risk factors for decreased CBF in patients who received long-term HD. CONCLUSIONS Patients who received long-term HD with normal CBF had worse cognitive function, which may be related to increased dialysis duration.
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Affiliation(s)
- Yan Xue
- Department of Radiology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhuanzhuan Wu
- Department of Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Bo Li
- Department of Radiological Diagnosis, The 960th Hospital of the People's Liberation Army Joint Logistics Support Force, Jinan, China
| | - Gang Sun
- Department of Radiological Diagnosis, The 960th Hospital of the People's Liberation Army Joint Logistics Support Force, Jinan, China
| | - Fengyu Jia
- Department of Nephrology, The 960th Hospital of the People's Liberation Army Joint Logistics Support Force, Jinan, China.
| | - Kai Liu
- Department of Radiological Diagnosis, The 960th Hospital of the People's Liberation Army Joint Logistics Support Force, Jinan, China.
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Kourtidou C, Tziomalos K. Epidemiology and Risk Factors for Stroke in Chronic Kidney Disease: A Narrative Review. Biomedicines 2023; 11:2398. [PMID: 37760839 PMCID: PMC10525494 DOI: 10.3390/biomedicines11092398] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 08/21/2023] [Accepted: 08/24/2023] [Indexed: 09/29/2023] Open
Abstract
Patients with chronic kidney disease (CKD) have a higher risk ofboth ischemic and hemorrhagic stroke. This association appears to be partly independent from the higher prevalence of established risk factors for stroke in patients with CKD, including hypertension and atrial fibrillation. In the present review we aim to discuss the impact of CKD on the risk of stroke and stroke-related consequences, and explore the pathophysiology underpinning the increased risk of stroke in patients with CKD. We cover the clinical association between renal dysfunction and cerebrovascular disease including stroke, silent brain infarct, cerebral small vessel disease, microbleeds, and white matter hyperintensity, and discuss the underlying mechanisms.
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Affiliation(s)
- Christodoula Kourtidou
- Department of Nephrology, Medical School, Aristotle University of Thessaloniki, AHEPA University Hospital, 54636 Thessaloniki, Greece;
| | - Konstantinos Tziomalos
- First Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, AHEPA University Hospital, 54636 Thessaloniki, Greece
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17
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Kaneko S, Ookawara S, Ito K, Minato S, Mutsuyoshi Y, Ueda Y, Hirai K, Morishita Y. Differences between Hepatic and Cerebral Regional Tissue Oxygen Saturation at the Onset of Intradialytic Hypotension. J Clin Med 2023; 12:4904. [PMID: 37568305 PMCID: PMC10419901 DOI: 10.3390/jcm12154904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/23/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
BACKGROUND Intradialytic hypotension (IDH) is a critical pathological condition associated with all-cause mortality in patients undergoing hemodialysis (HD). However, few studies have investigated IDH-related changes in hepatic and cerebral regional tissue oxygen saturation (rSO2). This study investigated IDH-induced changes in hepatic and cerebral rSO2. METHODS Hepatic and cerebral rSO2 during HD were measured using an INVOS 5100C oxygen saturation monitor, and their percentage (%) changes during the development of IDH were analyzed. Ninety-one patients undergoing HD were investigated, including twenty with IDH. RESULTS In patients with IDH, % changes in hepatic and cerebral rSO2 decreased at the onset of IDH. Additionally, the % change in hepatic rSO2 was significantly larger than that in cerebral rSO2 (p < 0.001). In patients without IDH, no significant differences were found between the % changes in hepatic and cerebral rSO2 at the time of the lowest systolic blood pressure during HD. Multivariable linear regression analysis showed that the difference between the % changes in cerebral and hepatic rSO2 was significantly associated with the development of IDH (p < 0.001) and the ultrafiltration rate (p = 0.010). CONCLUSIONS Hepatic and cerebral rSO2 significantly decreased during the development of IDH, and hepatic rSO2 was more significantly decreased than cerebral rSO2 at the onset of IDH.
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Affiliation(s)
| | - Susumu Ookawara
- Correspondence: ; Tel.: +81-48-647-2111; Fax: +81-48-647-6831
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18
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Maduell F, Cholbi E, Morantes L, Escudero-Saiz VJ, Ollé J, Martínez-Chillarón M, Rodas LM, Rodríguez-Espinosa D, Arias-Guillen M, Vera M, Fontseré N, Broseta JJ. Results of Salt Intake Restriction Monitored with the New Sodium Control Biosensor. Am J Nephrol 2023; 54:291-298. [PMID: 37311444 DOI: 10.1159/000531521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 05/31/2023] [Indexed: 06/15/2023]
Abstract
INTRODUCTION Adherence to a low-sodium (Na) diet is crucial in patients under hemodialysis, as it improves cardiovascular outcomes and reduces thirst and interdialytic weight gain. Recommended salt intake is lower than 5 g/day. The new 6008 CAREsystem monitors incorporate a Na module that offers the advantage of estimating patients' salt intake. The objective of this study was to evaluate the effect of dietary Na restriction for 1 week, monitored with the Na biosensor. METHODS A prospective study was conducted in 48 patients who maintained their usual dialysis parameters and were dialyzed with a 6008 CAREsystem monitor with activation of the Na module. Total Na balance, pre-/post-dialysis weight, serum Na (sNa), changes in pre- to post-dialysis sNa (ΔsNa), diffusive balance, and systolic and diastolic blood pressure were compared twice, once after 1 week of patients' usual Na diet and again after another week with more restricted Na intake. RESULTS Restricted Na intake increased the percentage of patients on a low-Na diet (<85 Na mmol/day) from 8% to 44%. Average daily Na intake decreased from 149 ± 54 to 95 ± 49 mmol, and interdialytic weight gain was reduced by 460 ± 484 g per session. More restricted Na intake also decreased pre-dialysis sNa and increased both intradialytic diffusive balance and ΔsNa. In hypertensive patients, reducing daily Na by more than 3 g Na/day lowered their systolic blood pressure. CONCLUSIONS The new Na module allowed objective monitoring of Na intake, which in turn could permit more precise personalized dietary recommendations in patients under hemodialysis.
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Affiliation(s)
- Francisco Maduell
- Department of Nephrology, Hospital Clínic Barcelona, Barcelona, Spain
| | - Ester Cholbi
- Department of Nephrology, Hospital Clínic Barcelona, Barcelona, Spain
| | - Laura Morantes
- Department of Nephrology, Hospital Clínic Barcelona, Barcelona, Spain
| | | | - Júlia Ollé
- Department of Nephrology, Hospital Clínic Barcelona, Barcelona, Spain
| | | | - Lida Maria Rodas
- Department of Nephrology, Hospital Clínic Barcelona, Barcelona, Spain
| | | | | | - Manel Vera
- Department of Nephrology, Hospital Clínic Barcelona, Barcelona, Spain
| | - Néstor Fontseré
- Department of Nephrology, Hospital Clínic Barcelona, Barcelona, Spain
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Ghoshal S. Renal and Electrolyte Disorders and the Nervous System. Continuum (Minneap Minn) 2023; 29:797-825. [PMID: 37341331 DOI: 10.1212/con.0000000000001286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
OBJECTIVE Neurologic complications are a major contributor to death and disability in patients with renal disease. Oxidative stress, endothelial dysfunction, accelerated arteriosclerosis, and uremic inflammatory milieu affect both the central and peripheral nervous systems. This article reviews the unique contributions of renal impairment to neurologic disorders and their common clinical manifestations as the prevalence of renal disease increases in a globally aging population. LATEST DEVELOPMENT Advances in the understanding of the pathophysiologic interplay between the kidneys and brain, also referred to as the kidney-brain axis, have led to more widespread recognition of associated changes in neurovascular dynamics, central nervous system acidification, and uremia-associated endothelial dysfunction and inflammation in the central and peripheral nervous systems. Acute kidney injury increases mortality in acute brain injury to nearly 5 times that seen in matched controls. Renal impairment and its associated increased risks of intracerebral hemorrhage and accelerated cognitive decline are developing fields. Dialysis-associated neurovascular injury is increasingly recognized in both continuous and intermittent forms of renal replacement therapy, and treatment strategies for its prevention are evolving. ESSENTIAL POINTS This article summarizes the effects of renal impairment on the central and peripheral nervous systems with special considerations in acute kidney injury, patients requiring dialysis, and conditions that affect both the renal and nervous systems.
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20
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Wang CH, Fay K, Shashaty MG, Negoianu D. Volume Management with Kidney Replacement Therapy in the Critically Ill Patient. Clin J Am Soc Nephrol 2023; 18:788-802. [PMID: 37016472 PMCID: PMC10278821 DOI: 10.2215/cjn.0000000000000164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 03/26/2023] [Indexed: 04/06/2023]
Abstract
While the administration of intravenous fluids remains an important treatment, the negative consequences of subsequent fluid overload have raised questions about when and how clinicians should pursue avenues of fluid removal. Decisions regarding fluid removal during critical illness are complex even for patients with preserved kidney function. This article seeks to apply general concepts of fluid management to the care of patients who also require KRT. Because optimal fluid management for any specific patient is likely to change over the course of critical illness, conceptual models using phases of care have been developed. In this review, we will examine the implications of one such model on the use of ultrafiltration during KRT for volume removal in distributive shock. This will also provide a useful lens to re-examine published data of KRT during critical illness. We will highlight recent prospective trials of KRT as well as recent retrospective studies examining ultrafiltration rate and mortality, review the results, and discuss applications and shortcomings of these studies. We also emphasize that current data and techniques suggest that optimal guidelines will not consist of recommendations for or against absolute fluid removal rates but will instead require the development of dynamic protocols involving frequent cycles of reassessment and adjustment of net fluid removal goals. If optimal fluid management is dynamic, then frequent assessment of fluid responsiveness, fluid toxicity, and tolerance of fluid removal will be needed. Innovations in our ability to assess these parameters may improve our management of ultrafiltration in the future.
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Affiliation(s)
- Christina H. Wang
- Renal, Electrolyte and Hypertension Division, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
- Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Kevin Fay
- Renal, Electrolyte and Hypertension Division, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
- Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Michael G.S. Shashaty
- Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
- Pulmonary, Allergy, and Critical Care Division, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Dan Negoianu
- Renal, Electrolyte and Hypertension Division, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
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21
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Kelly DM. Dialysis on the Mind: The Evolution of Hemodialysis-Related Acute Brain Injury. J Am Soc Nephrol 2023; 34:938-940. [PMID: 37103888 PMCID: PMC10278807 DOI: 10.1681/asn.0000000000000144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023] Open
Affiliation(s)
- Dearbhla M. Kelly
- Department of Intensive Care Medicine, Mater Misericordiae University Hospital, Dublin, Ireland
- Global Brain Health Institute, Trinity College Dublin, Ireland
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22
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Crepeau P, Fedorova T, Morris-Wiseman LF, Mathur A. Secondary Hyperparathyroidism and Cognitive Decline. CURRENT TRANSPLANTATION REPORTS 2023; 10:60-68. [PMID: 38707996 PMCID: PMC11068066 DOI: 10.1007/s40472-023-00394-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/24/2023] [Indexed: 05/07/2024]
Abstract
Purpose of Review Secondary hyperparathyroidism (SHPT) likely contributes to the high prevalence of cognitive decline found among individuals with end-stage kidney disease (ESKD). Our objective is to critically evaluate the recent literature regarding the association between SHPT and cognitive decline and identify potential mechanisms. Recent Findings Nine studies assessing the relationship between SHPT and cognition have been published in the last two decades, each showing that elevated parathyroid hormone (PTH) levels were associated with cognitive decline. One also found structural changes within the brain related to SHPT. Additionally, two found that SHPT treatment decreases the risk of cognitive decline in ESKD patients. Summary SHPT is associated with cognitive impairment. However, the severity of SHPT associated with these changes and the specific cognitive domains affected remain unclear. Future studies are needed to focus on specific cognitive domains, the trajectory of cognitive decline, and optimal treatment strategies including the impact of kidney transplant and tertiary hyperparathyroidism.
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Affiliation(s)
- Philip Crepeau
- Department of Surgery, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Blalock 606, Baltimore, MD 21287, USA
| | - Tatiana Fedorova
- Department of Surgery, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Blalock 606, Baltimore, MD 21287, USA
| | - Lilah F. Morris-Wiseman
- Department of Surgery, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Blalock 606, Baltimore, MD 21287, USA
| | - Aarti Mathur
- Department of Surgery, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Blalock 606, Baltimore, MD 21287, USA
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23
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Li J, Xing Y, Zhang Y, Cui C, Wang J, Li J, Liu C. Evaluation of autonomic nervous system activity in intradialytic hypotension using entropy and skin sympathetic nerve activity. Front Neurosci 2023; 17:1196750. [PMID: 37255747 PMCID: PMC10225985 DOI: 10.3389/fnins.2023.1196750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 04/24/2023] [Indexed: 06/01/2023] Open
Abstract
Introduction The function of the autonomic nervous system (ANS) is crucial in the development of intradialytic hypotension (IDH). This study introduced the entropy of heart rate variability (HRV) and skin sympathetic nerve activity (SKNA) to provide a complementary nonlinear and dynamic perspective for evaluating ANS function concerning IDH. Methods 93 patients undergoing hemodialysis (HD) were enrolled, and the baseline data, electrocardiogram (ECG), and SKNA were collected. The patients were separated into the IDH and nonIDH groups based on the thresholds, which were characterized as reductions in systolic blood pressure (SBP) of at least 20 mm Hg or mean arterial pressure (MAP) of at least 10 mm Hg. We developed a logistic regression model for IDH after analyzing the changes in the time domain, frequency domain, the entropy of HRV, and SKNA indices during HD. Results After 4-h HD, the detected results for heart rate, the ratio of low frequency and high frequency (LF/HF), and average SKNA (aSKNA) all increased in both groups. Nine out of the ten HRV indices and aSKNA in the nonIDH group were higher than those in the IDH group at most moments. aSKNA was positively correlated with heart rate (p = 0.0001) and LF/HF (p = 0.0005) in the nonIDH group, while the correlation disappeared in the IDH group, which indicated a worse ANS response in IDH patients. The logistic regression model exhibited the results of initial SBP [odds ratio (OR) 1.076; p = 0.001], and the difference between the last and first segments (DLF) of heart rate [OR 1.101; p =0.012] and LF/HF [OR 0.209; p =0.034], as well as the extreme value of the difference between other segments and the first segments (EOF) of aSKNA [OR 2.908; p =0.017], which were independent indicators for IDH. Discussion The new nonlinear and dynamic assessment perspectives provided by the entropy of HRV and SKNA help to distinguish differences in ANS patterns between IDH patients and nonIDH patients and have the potential to be used in clinical monitoring for HD patients.
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Affiliation(s)
- Jiayi Li
- State Key Laboratory of Digital Medical Engineering, School of Instrument Science and Engineering, Southeast University, Nanjing, China
| | - Yantao Xing
- State Key Laboratory of Digital Medical Engineering, School of Instrument Science and Engineering, Southeast University, Nanjing, China
| | - Yike Zhang
- Division of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chang Cui
- Division of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jing Wang
- Division of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jianqing Li
- State Key Laboratory of Digital Medical Engineering, School of Instrument Science and Engineering, Southeast University, Nanjing, China
| | - Chengyu Liu
- State Key Laboratory of Digital Medical Engineering, School of Instrument Science and Engineering, Southeast University, Nanjing, China
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Maduell F, Broseta JJ, Rodríguez-Espinosa D, Casals J, Escudero V, Gomez M, Rodas LM, Arias-Guillén M, Vera M, Fontseré N. Practical implementation and clinical benefits of the new automated dialysate sodium control biosensor. Clin Kidney J 2023; 16:859-867. [PMID: 37151418 PMCID: PMC10157758 DOI: 10.1093/ckj/sfad013] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Indexed: 01/25/2023] Open
Abstract
Background A key feature of dialysis treatment is the prescription of dialysate sodium (Na). This study aimed to describe the practical implementation of a new automated dialysate Na control biosensor and to assess its tolerance and the beneficial clinical effects of isonatraemic dialysis. Methods A prospective study was carried out in 86 patients who, along with their usual parameters, received the following five consecutive phases of treatment for 3 weeks each: phase 0: baseline 5008 machine; phases 1 and 2: 6008 machine without activation of the Na control biosensor and the same fixed individualized Na dialysate prescription or adjusted to obtain similar conductivity to phase 0; phases 3 and 4: activated Na control to isonatraemic dialysis (Na dialysate margins 135-141 or 134-142 mmol/L). Results When the Na control was activated, the few episodes of cramps or hypotension disappeared when the lower dialysate Na margin was increased by 1 or 2 mmol/L. The activated Na control module showed significant differences compared with baseline and the non-activated Na module in final serum Na values, diffusive Na balance, and changes in pre- to postdialysis plasma Na values. The mean predialysis systolic blood pressure value was significantly lower in phase 4 than in phase 1. There were no significant differences in total Na balance in the four 6008 phases evaluated. Conclusions The implementation of the automated dialysate Na control module is a useful new tool, which reduced the diffusive load of Na with good tolerance. The module had the advantages of reducing thirst, interdialytic weight gain and intradialytic plasma Na changes.
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Affiliation(s)
- Francisco Maduell
- Department of Nephrology, Hospital Clínic Barcelona, Barcelona, Spain
| | - José J Broseta
- Department of Nephrology, Hospital Clínic Barcelona, Barcelona, Spain
| | | | - Joaquim Casals
- Department of Nephrology, Hospital Clínic Barcelona, Barcelona, Spain
| | - Victor Escudero
- Department of Nephrology, Hospital Clínic Barcelona, Barcelona, Spain
| | - Miquel Gomez
- Department of Nephrology, Hospital Clínic Barcelona, Barcelona, Spain
| | - Lida M Rodas
- Department of Nephrology, Hospital Clínic Barcelona, Barcelona, Spain
| | | | - Manel Vera
- Department of Nephrology, Hospital Clínic Barcelona, Barcelona, Spain
| | - Néstor Fontseré
- Department of Nephrology, Hospital Clínic Barcelona, Barcelona, Spain
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Veinot TC, Gillespie B, Argentina M, Bragg-Gresham J, Chatoth D, Collins Damron K, Heung M, Krein S, Wingard R, Zheng K, Saran R. Enhancing the Cardiovascular Safety of Hemodialysis Care Using Multimodal Provider Education and Patient Activation Interventions: Protocol for a Cluster Randomized Controlled Trial. JMIR Res Protoc 2023; 12:e46187. [PMID: 37079365 PMCID: PMC10160944 DOI: 10.2196/46187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 02/19/2023] [Indexed: 02/21/2023] Open
Abstract
BACKGROUND End-stage kidney disease (ESKD) is treated with dialysis or kidney transplantation, with most patients with ESKD receiving in-center hemodialysis treatment. This life-saving treatment can result in cardiovascular and hemodynamic instability, with the most common form being low blood pressure during the dialysis treatment (intradialytic hypotension [IDH]). IDH is a complication of hemodialysis that can involve symptoms such as fatigue, nausea, cramping, and loss of consciousness. IDH increases risks of cardiovascular disease and ultimately hospitalizations and mortality. Provider-level and patient-level decisions influence the occurrence of IDH; thus, IDH may be preventable in routine hemodialysis care. OBJECTIVE This study aims to evaluate the independent and comparative effectiveness of 2 interventions-one directed at hemodialysis providers and another for patients-in reducing the rate of IDH at hemodialysis facilities. In addition, the study will assess the effects of interventions on secondary patient-centered clinical outcomes and examine factors associated with a successful implementation of the interventions. METHODS This study is a pragmatic, cluster randomized trial to be conducted in 20 hemodialysis facilities in the United States. Hemodialysis facilities will be randomized using a 2 × 2 factorial design, such that 5 sites will receive a multimodal provider education intervention, 5 sites will receive a patient activation intervention, 5 sites will receive both interventions, and 5 sites will receive none of the 2 interventions. The multimodal provider education intervention involved theory-informed team training and the use of a digital, tablet-based checklist to heighten attention to patient clinical factors associated with increased IDH risk. The patient activation intervention involves tablet-based, theory-informed patient education and peer mentoring. Patient outcomes will be monitored during a 12-week baseline period, followed by a 24-week intervention period and a 12-week postintervention follow-up period. The primary outcome of the study is the proportion of treatments with IDH, which will be aggregated at the facility level. Secondary outcomes include patient symptoms, fluid adherence, hemodialysis adherence, quality of life, hospitalizations, and mortality. RESULTS This study is funded by the Patient-Centered Outcomes Research Institute and approved by the University of Michigan Medical School's institutional review board. The study began enrolling patients in January 2023. Initial feasibility data will be available in May 2023. Data collection will conclude in November 2024. CONCLUSIONS The effects of provider and patient education on reducing the proportion of sessions with IDH and improving other patient-centered clinical outcomes will be evaluated, and the findings will be used to inform further improvements in patient care. Improving the stability of hemodialysis sessions is a critical concern for clinicians and patients with ESKD; the interventions targeted to providers and patients are predicted to lead to improvements in patient health and quality of life. TRIAL REGISTRATION ClinicalTrials.gov NCT03171545; https://clinicaltrials.gov/ct2/show/NCT03171545. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) PRR1-10.2196/46187.
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Affiliation(s)
- Tiffany Christine Veinot
- School of Information, University of Michigan, Ann Arbor, MI, United States
- Department of Health Behavior and Health Education, School of Public Health, University of Michigan, Ann Arbor, MI, United States
- Department of Learning Health Sciences, School of Medicine, University of Michigan, Ann Arbor, MI, United States
| | - Brenda Gillespie
- Department of Biostatistics, Consulting for Statistics, Computing and Analytics Research, University of Michigan, Ann Arbor, MI, United States
| | | | - Jennifer Bragg-Gresham
- Division of Nephrology, School of Medicine, Ann Arbor, MI, United States
- Kidney Epidemiology and Cost Center, University of Michigan, Ann Arbor, MI, United States
| | | | | | - Michael Heung
- Division of Nephrology, School of Medicine, Ann Arbor, MI, United States
| | - Sarah Krein
- Department of Internal Medicine, School of Medicine, University of Michigan, Ann Arbor, MI, United States
- Veterans Affairs Center for Clinical Management Research, US Department of Veterans Affairs, Ann Arbor, MI, United States
| | | | - Kai Zheng
- School of Information and Computer Sciences, University of California Irvine, Irvine, CA, United States
| | - Rajiv Saran
- Division of Nephrology, School of Medicine, Ann Arbor, MI, United States
- Kidney Epidemiology and Cost Center, University of Michigan, Ann Arbor, MI, United States
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Delrue C, De Bruyne S, Speeckaert MM. The Potential Use of Near- and Mid-Infrared Spectroscopy in Kidney Diseases. Int J Mol Sci 2023; 24:ijms24076740. [PMID: 37047712 PMCID: PMC10094824 DOI: 10.3390/ijms24076740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/25/2023] [Accepted: 04/03/2023] [Indexed: 04/08/2023] Open
Abstract
Traditional renal biomarkers such as serum creatinine and albuminuria/proteinuria are rather insensitive since they change later in the course of the disease. In order to determine the extent and type of kidney injury, as well as to administer the proper therapy and enhance patient management, new techniques for the detection of deterioration of the kidney function are urgently needed. Infrared spectroscopy is a label-free and non-destructive technique having the potential to be a vital tool for quick and inexpensive routine clinical diagnosis of kidney disorders. The aim of this review is to provide an overview of near- and mid-infrared spectroscopy applications in patients with acute kidney injury and chronic kidney disease (e.g., diabetic nephropathy and glomerulonephritis).
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Affiliation(s)
- Charlotte Delrue
- Department of Nephrology, Ghent University Hospital, 9000 Ghent, Belgium
| | - Sander De Bruyne
- Department of Diagnostic Sciences, Ghent University Hospital, 9000 Ghent, Belgium
| | - Marijn M. Speeckaert
- Department of Nephrology, Ghent University Hospital, 9000 Ghent, Belgium
- Research Foundation-Flanders (FWO), 1000 Brussels, Belgium
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Sugiyama T, Ito K, Ookawara S, Shimoyama H, Shindo M, Hirata M, Shimoyama H, Nakazato Y, Morishita Y. Effects of percutaneous transluminal angioplasty and associated factors in access hand oxygenation in patients undergoing hemodialysis. Sci Rep 2023; 13:2576. [PMID: 36781901 PMCID: PMC9925747 DOI: 10.1038/s41598-023-29879-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/11/2023] [Indexed: 02/15/2023] Open
Abstract
In hemodialysis (HD) patients with arteriovenous fistula (AVF), changes in systemic or peripheral tissue circulation occur non-physiologically via the presence of AVF; however, associations between blood flow and tissue oxygenation in the brain and access hand are uncertain. In this study, 85 HD patients with AVF were included and evaluated for changes in flow volume (FV) and regional oxygen saturation (rSO2) in the brain and hands with AVF before and after percutaneous transluminal angioplasty (PTA). Furthermore, we evaluated the factors that determine access hand rSO2 without stenosis after PTA. Brachial arterial FV increased after PTA (p < 0.001), and carotid FV decreased (p = 0.008). Access hand rSO2 significantly decreased after PTA (p < 0.001), but cerebral rSO2 did not significantly change (p = 0.317). In multivariable linear regression analysis of factors associated with access hand rSO2, serum creatinine (standardized coefficient: 0.296) and hemoglobin (standardized coefficient: 0.249) were extracted as independent factors for access hand rSO2. In conclusion, a decrease in access hand oxygenation and maintenance of cerebral oxygenation were observed throughout PTA. To maintain access hand oxygenation, it is important to adequately manage Hb level and maintain muscle mass, in addition to having an AVF with appropriate blood flow.
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Affiliation(s)
- Tomoko Sugiyama
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma-cho, Omiya-ku, Saitama, Saitama, 330-8503, Japan
- Division of Nephrology, Yuai Nisshin Clinic, Hakuyukai Medical Corporation, Saitama, Japan
| | - Kiyonori Ito
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma-cho, Omiya-ku, Saitama, Saitama, 330-8503, Japan
| | - Susumu Ookawara
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma-cho, Omiya-ku, Saitama, Saitama, 330-8503, Japan.
| | - Hirofumi Shimoyama
- Division of Nephrology, Yuai Nisshin Clinic, Hakuyukai Medical Corporation, Saitama, Japan
| | | | - Momoko Hirata
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma-cho, Omiya-ku, Saitama, Saitama, 330-8503, Japan
| | - Hiromi Shimoyama
- Division of Nephrology, Yuai Clinic, Hakuyukai Medical Corporation, Saitama, Japan
| | - Yuichi Nakazato
- Division of Nephrology, Yuai Nisshin Clinic, Hakuyukai Medical Corporation, Saitama, Japan
| | - Yoshiyuki Morishita
- Division of Nephrology, First Department of Integrated Medicine, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma-cho, Omiya-ku, Saitama, Saitama, 330-8503, Japan
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Paré M, Obeid H, Labrecque L, Drapeau A, Brassard P, Agharazii M. Cerebral blood flow pulsatility and cerebral artery stiffness acutely decrease during hemodialysis. Physiol Rep 2023; 11:e15595. [PMID: 36808481 PMCID: PMC9937783 DOI: 10.14814/phy2.15595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 01/19/2023] [Indexed: 02/19/2023] Open
Abstract
End-stage kidney disease (ESKD) is associated with increased arterial stiffness and cognitive impairment. Cognitive decline is accelerated in ESKD patients on hemodialysis and may result from repeatedly inappropriate cerebral blood flow (CBF). The aim of this study was to examine the acute effect of hemodialysis on pulsatile components of CBF and their relation to acute changes in arterial stiffness. In eight participants (age: 63 ± 18 years, men: 5), CBF was estimated using middle cerebral artery blood velocity (MCAv) assessed with transcranial Doppler ultrasound before, during, and after a single hemodialysis session. Brachial and central blood pressure, along with estimated aortic stiffness (eAoPWV) were measured using an oscillometric device. Arterial stiffness from heart to MCA was measured as the pulse arrival time (PAT) between electrocardiogram (ECG) and transcranial Doppler ultrasound waveforms (cerebral PAT). During hemodialysis, there was a significant reduction in mean MCAv (-3.2 cm/s, p < 0.001), and systolic MCAv (-13.0 cm/s, p < 0.001). While baseline eAoPWV (9.25 ± 0.80 m/s) did not significantly change during hemodialysis, cerebral PAT increased significantly (+0.027 , p < 0.001) and was associated with reduced pulsatile components of MCAv. This study shows that hemodialysis acutely reduces stiffness of arteries perfusing the brain along with pulsatile components of blood velocity.
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Affiliation(s)
- Mathilde Paré
- CHU de Québec Research Center, L'Hôtel‐Dieu de Québec HospitalQuébec CityQuebecCanada
- Research Center of the Institute Universitaire de Cardiologie et de Pneumologie de QuébecQuébec CityQuebecCanada
- Department of Kinesiology, Faculty of MedicineUniversité LavalQuébec CityQuebecCanada
| | - Hasan Obeid
- CHU de Québec Research Center, L'Hôtel‐Dieu de Québec HospitalQuébec CityQuebecCanada
| | - Lawrence Labrecque
- Research Center of the Institute Universitaire de Cardiologie et de Pneumologie de QuébecQuébec CityQuebecCanada
- Department of Kinesiology, Faculty of MedicineUniversité LavalQuébec CityQuebecCanada
| | - Audrey Drapeau
- Research Center of the Institute Universitaire de Cardiologie et de Pneumologie de QuébecQuébec CityQuebecCanada
- Department of Kinesiology, Faculty of MedicineUniversité LavalQuébec CityQuebecCanada
| | - Patrice Brassard
- Research Center of the Institute Universitaire de Cardiologie et de Pneumologie de QuébecQuébec CityQuebecCanada
- Department of Kinesiology, Faculty of MedicineUniversité LavalQuébec CityQuebecCanada
| | - Mohsen Agharazii
- CHU de Québec Research Center, L'Hôtel‐Dieu de Québec HospitalQuébec CityQuebecCanada
- Division of Nephrology, Faculty of MedicineUniversité Laval, QuébecQuébec CityQuebecCanada
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Chu NM, Bae S, Chen X, Ruck J, Gross AL, Albert M, Neufeld KJ, Segev DL, McAdams-DeMarco MA. Delirium, changes in cognitive function, and risk of diagnosed dementia after kidney transplantation. Am J Transplant 2022; 22:2892-2902. [PMID: 35980673 PMCID: PMC10138281 DOI: 10.1111/ajt.17176] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 07/25/2022] [Accepted: 08/15/2022] [Indexed: 01/25/2023]
Abstract
Kidney transplant (KT) recipients with delirium, a preventable surgical complication, are likely to reap cognitive benefits from restored kidney function, but may be more vulnerable to longer-term neurotoxic stressors post-KT (i.e., aging, immunosuppression). In this prospective cohort study, we measured delirium (chart-based), global cognitive function (3MS), and executive function (Trail Making Test Part B minus Part A) in 894 recipients (2009-2021) at KT, 1/3/6-months, 1-year, and annually post-KT. Dementia was ascertained using linked Medicare claims. We described repeated measures of cognitive performance (mixed effects model) and quantified dementia risk (Fine & Gray competing risk) by post-KT delirium. Of 894 recipients, 43(4.8%) had post-KT delirium. Delirium was not associated with global cognitive function at KT (difference = -3.2 points, 95%CI: -6.7, 0.4) or trajectories post-KT (0.03 points/month, 95%CI: -0.27, 0.33). Delirium was associated with worse executive function at KT (55.1 s, 95%CI: 25.6, 84.5), greater improvements in executive function <2 years post-KT (-2.73 s/month, 95%CI: -4.46,-0.99), and greater decline in executive function >2 years post-KT (1.72 s/month, 95%CI: 0.22, 3.21). Post-KT delirium was associated with over 7-fold greater risk of dementia post-KT (adjusted subdistribution hazard ratio = 7.84, 95%CI: 1.22, 50.40). Transplant centers should be aware of cognitive risks associated with post-KT delirium and implement available preventative interventions to reduce delirium risk.
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Affiliation(s)
- Nadia M. Chu
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, Maryland, USA
| | - Sunjae Bae
- Department of Surgery, New York University Grossman School of Medicine, New York, New York, USA
| | - Xiaomeng Chen
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Jessica Ruck
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Alden L. Gross
- Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, Maryland, USA
- Department of Mental Health, Johns Hopkins School of Public Health, Baltimore, Maryland, USA
| | - Marilyn Albert
- Department of Neurology, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Karin J. Neufeld
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Dorry L. Segev
- Department of Surgery, New York University Grossman School of Medicine, New York, New York, USA
| | - Mara A. McAdams-DeMarco
- Department of Surgery, New York University Grossman School of Medicine, New York, New York, USA
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Chen LC, Tu IT, Yu IC, Tung TH, Huang HP, Lin YC, Beaton RD, Jane SW. The explorations of the awareness, contemplation, self-Efficacy, and readiness of advance care planning, and its predictors in Taiwanese patients while receiving hemodialysis treatment. BMC Palliat Care 2022; 21:180. [PMID: 36242014 PMCID: PMC9561320 DOI: 10.1186/s12904-022-01063-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 09/15/2022] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND End-stage renal disease (ESRD) is a major chronic illness worldwide, and Taiwan reports one of the highest incidence rates of ESRD with 529 cases per million population (pmp). A number of patients with ESRD patients might require lifelong hemodialysis (HD) or peritoneal dialyses (PD). Due to the progression of dialysis, patients are likely to experience other chronic comorbidities, anxiety and depression, frequent hospitalizations, and higher rates of mortality compared to patients with other types of chronic illnesses. As a result, dialysis patients are prone to experience advance care planning (ACP) needs, such as whether they withdraw from receiving dialysis while approaching their end-of-life (EOL). Yet, existing studies have shown that dialysis patients seldom receive timely consultation regarding ACP and there are limited studies examining ACP amongst Taiwan HD patients. PURPOSE The purpose of this study was to examine ACP awareness, contemplation, self-efficacy and readiness; and factors influencing ACP readiness. DESIGN This cross-sectional descriptive study with convenience sampling was conducted in the out-patient HD unit at a regional teaching hospital in southern Taiwan. A total of 143 ESRD patients undergoing HD treatments were recruited. A 55-item ACP engagement survey containing the subscales of awareness, contemplation, self-efficacy, and readiness was employed. The data were analyzed with t-tests, one-way ANOVAs, Pearson's correlations and multiple regressions. RESULTS The results of our investigation revealed that approximately half of the participants (n = 67, 46.9%) were not informed of ACP. Although they reported considering their EOL, medical decisions and desired care, they demonstrated significantly low self-efficacy in discussing ACP (t= -5.272, p < 0.001). HD duration influenced all four ACP subscales; religious beliefs significantly influenced ACP-self-efficacy and readiness; and marital status, education, and primary decision-maker status significantly influenced ACP-readiness. The predictors of ACP-readiness were high self-efficacy and being the primary decision-maker (Adjusted R2 61%). CONCLUSION Most of the HD patients in this study had low ACP-awareness, contemplation, self-efficacy, and readiness, and most had not completed any ACP-related advance directives (AD). Healthcare professionals should proactively provide HD patients with ACP-related information and answer patients' and medical decision-makers' questions in a timely manner, thereby improving the quality of EOL care.
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Affiliation(s)
- Li-Chen Chen
- Department of Nursing, Chi-Mei Medical Center, Liouying, Tainan, Taiwan
| | - I-Te Tu
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
- Division of Nephrology, Department of Internal Medicine, Chi-Mei Medical Center, Liouying, Tainan, Taiwan
| | - I-Chen Yu
- Department of Nursing, Chang Gung University of Science and Technology, Tao-Yuan City, Taiwan
- Division of Nephrology, Department of Internal Medicine, Chang Gung Memorial Hospital, Lin-Ko, Taiwan
| | - Tao-Hsin Tung
- Evidence-based Medicine Center, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Hsiang-Ping Huang
- Department of Nursing, Chang Gung University of Science and Technology, Tao-Yuan City, Taiwan
| | - Yung-Chang Lin
- Division of Hematology/Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital, Lin-Ko, Taiwan
| | - Randal D Beaton
- Psychosocial & Community Health and Health Services, Schools of Nursing and Public Health, University of Washington, Seattle, USA
| | - Sui-Whi Jane
- Department of Nursing, Chang Gung University of Science and Technology, Tao-Yuan City, Taiwan.
- Division of Hematology/Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital, Lin-Ko, Taiwan.
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Rootjes PA, Chaara S, de Roij van Zuijdewijn CL, Nubé MJ, Wijngaarden G, Grooteman MP. High-Volume Hemodiafiltration and Cool Hemodialysis Have a Beneficial Effect on Intradialytic Hemodynamics: A Randomized Cross-Over Trial of Four Intermittent Dialysis Strategies. Kidney Int Rep 2022; 7:1980-1990. [PMID: 36090495 PMCID: PMC9459077 DOI: 10.1016/j.ekir.2022.06.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 06/24/2022] [Accepted: 06/27/2022] [Indexed: 11/11/2022] Open
Abstract
Introduction Compared to standard hemodialysis (S-HD), postdilution hemodiafiltration (HDF) has been associated with improved survival. Methods To assess whether intradialytic hemodynamics may play a role in this respect, 40 chronic dialysis patients were cross-over randomized to S-HD (dialysate temperature [Td] 36.5 °C), cooled HD (C-HD; Td 35.5 °C), and HDF (low-volume [LV-HDF)] and high-volume [HV-HDF], both Td 36.5 °C, convection volume 15 liters, and at least 23 liters per session, respectively), each for 2 weeks. Blood pressure (BP) was measured every 15 minutes. The primary endpoint was the number of intradialytic hypotensive (IDH) episodes per session. IDH was defined as systolic BP (SBP) less than 90 mmHg for predialysis SBP less than 160 mmHg and less than 100 mmHg for predialysis SBP greater than or equal to 160 mmHg, independent of symptoms and interventions. A post hoc analysis on early-onset IDH was performed as well. Secondary endpoints included intradialytic courses of SBP, diastolic BP (DBP) and mean arterial pressure (MAP). Results During S-HD, IDH occurred 0.68 episodes per session, which was 3.2 and 2.5 times higher than during C-HD (0.21 per session, P < 0.0005) and HV-HDF (0.27 per session, P < 0.0005), respectively. Whereas the latter 2 strategies showed similar frequencies, HV-HDF differed significantly from LV-HDF (P = 0.02). A comparable trend was observed for early-onset IDH: S-HD (0.32 per session), C-HD (0.07 per session, P < 0.0005) and HV-HDF (0.10 per session, P = 0.001). SBP, DBP, and MAP declined during S-HD (−6.8, −5.2, −5.2 mmHg per session; P = 0.004, P < 0.0005, P = 0.002 respectively), which was markedly different from C-HD (P < 0.01). Conclusion Though C-HD and HV-HDF showed the lowest IDH frequency and the best intradialytic hemodynamic stability, all parameters were most disrupted in S-HD. Therefore, the survival benefit of HV-HDF over S-HD may be partly caused by a more beneficial intradialytic BP profile.
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Tariq H, Ramakrishnan M, Gupta A. Insights into Cognitive Brain Health in Chronic Kidney Disease. GERONTOLOGY & GERIATRICS : RESEARCH 2022; 8:1074. [PMID: 37671071 PMCID: PMC10478617 DOI: 10.26420/gerontolgeriatrres.2022.1074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
Cognitive impairment and Chronic Kidney Disease (CKD) are common in older adults. With advances in medicine, the average lifespan is expected to increase, further increasing the prevalence of both conditions. The mechanisms underlying cognitive impairment in CKD are unclear. While mild-moderately low estimated glomerular filtration rate (eGFR) may not be associated with cognitive impairment, severely decreased eGFR and albuminuria do. Patients on dialysis have a high prevalence of cognitive impairment. Cognitive function improves after kidney transplantation. However, some residual cognitive deficits persist after transplantation, indicating that restoring the kidney function alone may not be enough to restore cognitive function, and other etiological factors may play a role. Albuminuria, another marker of CKD is also associated with cognitive impairment. However, albuminuria is often undiagnosed. Improving early identification and management of patients with albuminuria may be a good population-based dementia prevention strategy. Other factors associated with cognitive impairment in CKD include anemia and other metabolic derangements commonly observed in CKD. In this article, we reviewed the prevalence of cognitive impairment in CKD, the potential mechanisms underlying cognitive impairment in CKD, andthecurrent evidence on the association between cognitive impairment and eGFR and albuminuria.
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Affiliation(s)
- H Tariq
- Division of Nephrology and Hypertension, Department of Internal Medicine, University of Kansas Medical Center, USA
| | - M Ramakrishnan
- Division of Nephrology and Hypertension, Department of Internal Medicine, University of Kansas Medical Center, USA
| | - A Gupta
- Division of Nephrology and Hypertension, Department of Internal Medicine, University of Kansas Medical Center, USA
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Maduell F, Broseta JJ, Casals J, Gómez M, Rodas LM, Arias-Guillén M, Vera M, Fontseré N. Variaciones de la conductividad y cambios en el sodio plasmático durante hemodiálisis relacionado con el cambio de monitor. Nefrologia 2022. [DOI: 10.1016/j.nefro.2022.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
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Miwa K, Toyoda K. Covert vascular brain injury in chronic kidney disease. Front Neurol 2022; 13:824503. [PMID: 35959397 PMCID: PMC9358355 DOI: 10.3389/fneur.2022.824503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 06/30/2022] [Indexed: 11/13/2022] Open
Abstract
Chronic kidney disease (CKD) contributes to the increased risk of stroke and dementia. Accumulating evidence indicates that structural brain abnormalities, such as cerebral small vessel disease, including white matter hyperintensities, lacunes, perivascular spaces, and cerebral microbleeds, as well as brain atrophy, are common in patients with CKD. All of these imaging findings have been implicated in the development of stroke and dementia. The brain and kidney exhibit similar impairments and promote structural brain abnormalities due to shared vascular risk factors and similar anatomical and physiological susceptibility to vascular injury in patients with CKD. This indicates that kidney function has a significant effect on brain aging. However, as most results are derived from cross-sectional observational studies, the exact pathophysiology of structural brain abnormalities in CKD remains unclear. The early detection of structural brain abnormalities in CKD in the asymptomatic or subclinical phase (covert) should enable stroke risk prediction and guide clinicians on more targeted interventions to prevent stroke in patients with CKD. This article summarizes the currently available clinical evidence linking covert vascular brain injuries with CKD.
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Richerson WT, Schmit BD, Wolfgram DF. The Relationship between Cerebrovascular Reactivity and Cerebral Oxygenation During Hemodialysis. J Am Soc Nephrol 2022; 33:1602-1612. [PMID: 35777782 PMCID: PMC9342630 DOI: 10.1681/asn.2021101353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 04/18/2022] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Patients with kidney failure treated with hemodialysis (HD) may be at risk for cerebral hypoperfusion due to HD-induced BP decline in the setting of impaired cerebral autoregulation. Cerebrovascular reactivity (CVR), the cerebrovascular response to vasoactive stimuli, may be a useful indicator of cerebral autoregulation in the HD population and identify those at risk for cerebral hypoperfusion. We hypothesize that CVR combined with intradialytic BP changes will be associated with declines in cerebral oxygenation saturation (ScO2) during HD. METHODS Participants completed the MRI scans on a non-HD day and cerebral oximetry during HD. We measured CVR with resting-state fMRI (rs-fMRI) without a gas challenge and ScO2 saturation with near-infrared spectroscopy. Regression analysis was used to examine the relationship between intradialytic cerebral oxygen desaturation, intradialytic BP, and CVR in different gray matter regions. RESULTS Twenty-six patients on HD had complete data for analysis. Sixteen patients were men, 18 had diabetes, and 20 had hypertension. Mean±SD age was 65.3±7.2 years, and mean±SD duration on HD was 11.5±9.4 months. CVR in the anterior cingulate gyrus (ACG; P=0.03, r2 =0.19) and insular cortex (IC; P=0.03, r2 =0.19) regions negatively correlated with decline in intradialytic ScO2. Model prediction of intradialytic ScO2 improved when including intradialytic BP change and ultrafiltration rate to the ACG rsCVR (P<0.01, r2 =0.48) and IC rsCVR (P=0.02, r2 =0.35) models, respectively. CONCLUSIONS We found significant relationships between regional rsCVR measured in the brain and decline in intradialytic ScO2. Our results warrant further exploration of using CVR in determining a patient's risk of cerebral ischemic injury during HD.
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Affiliation(s)
- Wesley T Richerson
- Department of Biomedical Engineering, Marquette University and Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Brian D Schmit
- Department of Biomedical Engineering, Marquette University and Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Dawn F Wolfgram
- Department of Medicine, Medical College of Wisconsin and Zablocki Veterans Affairs Medical Center, Milwaukee, Wisconsin
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Copur S, Berkkan M, Sarafidis P, Kanbay M. Intensive blood pressure control on dementia in patients with chronic kidney disease: Potential reduction in disease burden. Eur J Intern Med 2022; 101:8-13. [PMID: 35465970 DOI: 10.1016/j.ejim.2022.04.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/10/2022] [Accepted: 04/16/2022] [Indexed: 12/17/2022]
Abstract
Chronic kidney disease (CKD) and dementia are both common comorbidities creating considerable morbidity and mortality, especially in the elderly population with potential interactions. Even though various hypothetical mechanisms underlying the pathophysiology of increased risk of dementia and cognitive impairment in CKD patients have been implicated, no consensus has been reached so far. Recent clinical trials have investigated the therapeutic role of intensive blood pressure control on the risk of dementia in CKD patients with potentially improved outcomes. However, such trials have significant limitations that may influence the outcome and lack specific management guidelines. We reviewed the role of blood pressure and other factors on the risk of dementia in CKD patients which is an issue with high potential for clinical implications that may improve morbidity, mortality, and health expenditures along with its' potential pathophysiological mechanisms and future guidance.
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Affiliation(s)
- Sidar Copur
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Metehan Berkkan
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Pantelis Sarafidis
- Department of Nephrology, Hippokration Hospital, Aristotle University of Thessaloniki, Greece
| | - Mehmet Kanbay
- Department of Medicine, Division of Nephrology, Koc University School of Medicine, Istanbul, Turkey.
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Cerebral oxygenation changes in response to post-hemodialysis standing. J Artif Organs 2022:10.1007/s10047-022-01343-2. [PMID: 35776247 DOI: 10.1007/s10047-022-01343-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 06/05/2022] [Indexed: 10/17/2022]
Abstract
Few reports have examined the association between changes in cerebral oxygenation and clinical factors, including blood pressure (BP), upon standing after hemodialysis (HD). This study aimed to clarify the factors affecting the changes in cerebral regional oxygen saturation (rSO2) upon standing after HD and monitor the differences in cerebral rSO2 changes that occur upon standing after HD in patients with and without diabetes mellitus (DM). Changes in mean BP and cerebral rSO2 were tracked in 43 HD patients during 120 s of standing after HD using an INVOS 5100c oxygen saturation monitor. The post-HD cerebral rSO2 at rest was 55.8 ± 10.2%, while that at 120 s of standing decreased to 51.9 ± 9.6%; therefore, the percentage change in cerebral rSO2 at 120 s of standing was - 6.8 ± 6.4%, which was significantly lower than before HD (p < 0.001). This change was significantly correlated with the presence of DM, HD duration, mean BP at 120 s of standing, and percentage change in mean BP at 120 s of standing. A multivariable linear regression analysis showed that percentage change in cerebral rSO2 at 120 s of standing was independently associated with the percentage change in mean BP at 120 s of standing (standardized coefficient: 0.432; p = 0.004). Furthermore, there were significant decreases in percentage changes in cerebral rSO2 throughout the standing period in HD patients with versus without DM. Therefore, cerebral oxygenation deterioration upon standing after HD should receive attention, particularly in HD patients with DM.
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Boosted machine learning model for predicting intradialytic hypotension using serum biomarkers of nutrition. Comput Biol Med 2022; 147:105752. [DOI: 10.1016/j.compbiomed.2022.105752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 06/13/2022] [Accepted: 06/14/2022] [Indexed: 11/22/2022]
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Kurella Tamura M, Gaussoin S, Pajewski NM, Zaharchuk G, Freedman BI, Rapp SR, Auchus AP, Haley WE, Oparil S, Kendrick J, Roumie CL, Beddhu S, Cheung AK, Williamson JD, Detre JA, Dolui S, Bryan RN, Nasrallah IM. Kidney Disease, Hypertension Treatment, and Cerebral Perfusion and Structure. Am J Kidney Dis 2022; 79:677-687.e1. [PMID: 34543687 PMCID: PMC8926938 DOI: 10.1053/j.ajkd.2021.07.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 07/28/2021] [Indexed: 11/11/2022]
Abstract
RATIONALE & OBJECTIVE The safety of intensive blood pressure (BP) targets is controversial for persons with chronic kidney disease (CKD). We studied the effects of hypertension treatment on cerebral perfusion and structure in individuals with and without CKD. STUDY DESIGN Neuroimaging substudy of a randomized trial. SETTING & PARTICIPANTS A subset of participants in the Systolic Blood Pressure Intervention Trial (SPRINT) who underwent brain magnetic resonance imaging studies. Presence of baseline CKD was assessed by estimated glomerular filtration rate (eGFR) and urinary albumin-creatinine ratio (UACR). INTERVENTION Participants were randomly assigned to intensive (systolic BP <120 mm Hg) versus standard (systolic BP <140 mm Hg) BP lowering. OUTCOMES The magnetic resonance imaging outcome measures were the 4-year change in global cerebral blood flow (CBF), white matter lesion (WML) volume, and total brain volume (TBV). RESULTS A total of 716 randomized participants with a mean age of 68 years were enrolled; follow-up imaging occurred after a median 3.9 years. Among participants with eGFR <60 mL/min/1.73 m2 (n = 234), the effects of intensive versus standard BP treatment on change in global CBF, WMLs, and TBV were 3.38 (95% CI, 0.32 to 6.44) mL/100 g/min, -0.06 (95% CI, -0.16 to 0.04) cm3 (inverse hyperbolic sine-transformed), and -3.8 (95% CI, -8.3 to 0.7) cm3, respectively. Among participants with UACR >30 mg/g (n = 151), the effects of intensive versus standard BP treatment on change in global CBF, WMLs, and TBV were 1.91 (95% CI, -3.01 to 6.82) mL/100 g/min, 0.003 (95% CI, -0.13 to 0.13) cm3 (inverse hyperbolic sine-transformed), and -7.0 (95% CI, -13.3 to -0.3) cm3, respectively. The overall treatment effects on CBF and TBV were not modified by baseline eGFR or UACR; however, the effect on WMLs was attenuated in participants with albuminuria (P = 0.04 for interaction). LIMITATIONS Measurement variability due to multisite design. CONCLUSIONS Among adults with hypertension who have primarily early kidney disease, intensive versus standard BP treatment did not appear to have a detrimental effect on brain perfusion or structure. The findings support the safety of intensive BP treatment targets on brain health in persons with early kidney disease. FUNDING SPRINT was funded by the National Institutes of Health (including the National Heart, Lung, and Blood Institute; the National Institute of Diabetes and Digestive and Kidney Diseases; the National Institute on Aging; and the National Institute of Neurological Disorders and Stroke), and this substudy was funded by the National Institutes of Diabetes and Digestive and Kidney Diseases. TRIAL REGISTRATION SPRINT was registered at ClinicalTrials.gov with study number NCT01206062.
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Affiliation(s)
- Manjula Kurella Tamura
- Geriatric Research and Education Clinical Center, Palo Alto VA Health Care System, Palo Alto, CA; Division of Nephrology, Stanford University School of Medicine, Palo Alto, CA.
| | - Sarah Gaussoin
- Departments of Biostatistics and Data Science, Wake Forest School of Medicine, Winston-Salem, NC
| | - Nicholas M Pajewski
- Departments of Biostatistics and Data Science, Wake Forest School of Medicine, Winston-Salem, NC
| | - Greg Zaharchuk
- Department of Radiology, Stanford University School of Medicine, Palo Alto, CA
| | - Barry I Freedman
- Department of Internal Medicine, Section on Nephrology, Wake Forest School of Medicine, Winston-Salem, NC
| | - Stephen R Rapp
- Psychiatry & Behavioral Medicine, Wake Forest School of Medicine, Winston-Salem, NC
| | - Alexander P Auchus
- Department of Neurology, University of Mississippi Medical Center, Jackson, MS
| | - William E Haley
- Department of Medicine, Division of Nephrology and Hypertension, Mayo Clinic, Jacksonville, FL
| | - Suzanne Oparil
- Division of Cardiovascular Disease, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL
| | - Jessica Kendrick
- Department of Medicine, University of Colorado Anschutz Medical Campus, Denver, CO
| | - Christianne L Roumie
- VA Tennessee Valley Healthcare System Geriatrics Research and Education Clinical Center and Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Srinivasan Beddhu
- Division of Nephrology & Hypertension, Department of Internal Medicine, University of Utah and Veterans Affairs Salt Lake City Healthcare System, Salt Lake City, UT
| | - Alfred K Cheung
- Division of Nephrology & Hypertension, Department of Internal Medicine, University of Utah and Veterans Affairs Salt Lake City Healthcare System, Salt Lake City, UT
| | - Jeff D Williamson
- Sticht Center for Healthy Aging and Alzheimer's Prevention, Wake Forest School of Medicine, Winston-Salem, NC
| | - John A Detre
- Departments of Neurology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Sudipto Dolui
- Radiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - R Nick Bryan
- Department of Diagnostic Medicine Dell Medical School, University of Texas Austin Austin, TX
| | - Ilya M Nasrallah
- Radiology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
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Prevalence of mild cognitive impairment and its association with handgrip strength in patients on hemodialysis. Sci Rep 2022; 12:3850. [PMID: 35264623 PMCID: PMC8907220 DOI: 10.1038/s41598-022-07550-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 02/21/2022] [Indexed: 11/08/2022] Open
Abstract
Dementia is associated with a high risk of death and hospitalization among patients on hemodialysis (HD). We retrospectively evaluated the prevalence of mild cognitive impairment (MCI) in 421 patients on maintenance HD across nine facilities and investigated whether decreased handgrip strength was associated with decreased cognitive function. The Montreal Cognitive Assessment-Japan (MoCA-J) score and handgrip strength were measured. The mean age was 69.8 ± 11.2 years, and the median dialysis vintage 74.5 (IQR 30–150) months. The median MoCA-J score was 25 (IQR 21–27), and MCI was confirmed in 245 (58.2%) patients. Both the MoCA-J score and MoCA-J executive score were associated with age, history of cerebrovascular disease (CVA), and handgrip strength after adjustments. We found, among patients on HD aged under 70 years with a history of CVA, a handgrip strength < 90% (25.2 kg in males and 16.2 kg in females) correlated with significantly lower MoCA-J scores. A high prevalence of MCI and decreased handgrip strength were observed in patients on HD. Handgrip strength may be useful for the easy detection of MCI. A decrease in handgrip strength would allow for the early detection of MCI, especially among patients on HD aged under 70 years with a history of CVA.
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Kelly DM, Rothwell PM. Disentangling the Relationship Between Chronic Kidney Disease and Cognitive Disorders. Front Neurol 2022; 13:830064. [PMID: 35280286 PMCID: PMC8914950 DOI: 10.3389/fneur.2022.830064] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 02/03/2022] [Indexed: 12/12/2022] Open
Abstract
Chronic kidney disease (CKD) is a rapidly rising global health burden that affects nearly 40% of older adults. Epidemiologic data suggest that individuals at all stages of chronic kidney disease (CKD) have a higher risk of developing cognitive disorders and dementia, and thus represent a vulnerable population. It is currently unknown to what extent this risk may be attributable to a clustering of traditional risk factors such as hypertension and diabetes mellitus leading to a high prevalence of both symptomatic and subclinical ischaemic cerebrovascular lesions, or whether other potential mechanisms, including direct neuronal injury by uraemic toxins or dialysis-specific factors could also be involved. These knowledge gaps may lead to suboptimal prevention and treatment strategies being implemented in this group. In this review, we explore the mechanisms of susceptibility and risk in the relationship between CKD and cognitive disorders.
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Affiliation(s)
- Dearbhla M. Kelly
- J. Philip Kistler Stroke Research Center, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Peter M. Rothwell
- Wolfson Center for Prevention of Stroke and Dementia, Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, Oxford, United Kingdom
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Olczyk P, Kusztal M, Gołębiowski T, Letachowicz K, Krajewska M. Cognitive Impairment in End Stage Renal Disease Patients Undergoing Hemodialysis: Markers and Risk Factors. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19042389. [PMID: 35206577 PMCID: PMC8877881 DOI: 10.3390/ijerph19042389] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 02/09/2022] [Accepted: 02/15/2022] [Indexed: 12/12/2022]
Abstract
(1) Background: Cognitive impairment (CI) is common in chronic kidney disease (CKD) and patients treated with hemodialysis. (2) Methods: The systematic review was prepared following the PRISMA statement (2013). The biomedical electronic databases MEDLINE and SCOPUS were searched. (3) Results: out of 1093 studies, only 30, which met problem and population criteria, were included in this review. The risk factors for CI can be divided into three groups: traditional risk factors (present in the general population), factors related to dialysis sessions, and nontraditional risk factors occurring more frequently in the HD group. (4) Conclusions: the methods of counteracting CI effective in the general population should also be effective in HD patients. However, there is a need to develop unique anti-CI approaches targeting specific HD risk factors, i.e., modified hemodialysis parameters stabilizing cerebral saturation and blood flow.
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Raina R, Davenport A, Warady B, Vasistha P, Sethi SK, Chakraborty R, Khooblall P, Agarwal N, Vij M, Schaefer F, Malhotra K, Misra M. Dialysis disequilibrium syndrome (DDS) in pediatric patients on dialysis: systematic review and clinical practice recommendations. Pediatr Nephrol 2022; 37:263-274. [PMID: 34609583 DOI: 10.1007/s00467-021-05242-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/12/2021] [Accepted: 07/13/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND OBJECTIVES Dialysis disequilibrium syndrome (DDS) is a rare neurological complication, most commonly affecting patients undergoing new initiation of hemodialysis (HD), but can also be seen in patients receiving chronic dialysis who miss regular treatments, patients having acute kidney injury (AKI), and in those treated with continuous kidney replacement therapy (CKRT) or peritoneal dialysis (PD). Although the pathogenesis is not well understood, DDS is likely a result of multiple physiological abnormalities. In this systematic review, we provide a synopsis of the data available on DDS that allow for a clear picture of its pathogenesis, preventive measures, and focus on effective management strategies. METHODS We conducted a literature search on PubMed/Medline and Embase from January 1960 to January 2021. Studies were included if the patient developed DDS irrespective of age and gender. A summary table was used to summarize the data from individual studies and included study type, population group, age group, sample size, patient characteristics, blood and dialysate flow rate, and overall outcome. A descriptive analysis calculating the frequency of population size, symptoms, and various treatments was performed using R software version 3.1.0. RESULTS A total of 49 studies (321 samples) were identified and analyzed. Out of the included 49 studies, a total of 48 studies reported the presence of DSS among patients (1 study reported based on number of dialysis and therefore was not considered for analysis). Among these 48 studies, 74.3% (226/304) patients were reported to have DSS. The most common symptoms were nausea (25.2%), headache (24.8%), vomiting (23.9%), muscle cramps (18.1%), affected level of consciousness (8.8%), confusion (4.4%), and seizure (4.9%) among the 226 DDS patients. Furthermore, 12 studies decided to switch from HD to alternative dialysis modalities including continuous venovenous hemofiltration/hemodiafiltration (CVVH/CVVHDF) or PD which reported no DDS symptoms. CONCLUSION Early recognition and timely prevention are crucial for DDS patients. We have provided comprehensive clinical practice points for pediatric, adolescent, and young adult populations. However, it is essential to recognize that DDS was reported more frequently in the early dialysis era, as there was a lack of advanced dialysis technology and limited resources.
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Affiliation(s)
- Rupesh Raina
- Akron Nephrology Associates/Cleveland Clinic Akron General Medical Center, Akron, OH, USA. .,Department of Nephrology, Akron Children's Hospital, Akron, OH, USA. .,School of Medicine Cleveland Ohio, Case Western Reserve University, Cleveland, OH, USA.
| | - Andrew Davenport
- University College London Centre for Nephrology, Division of Medicine, University College London Medical School, Royal Free Hospital, London, UK
| | - Bradley Warady
- Division of Nephrology, University of Missouri-Kansas City School of Medicine, Children's Mercy, Kansas City, MO, USA
| | - Prabhav Vasistha
- Akron Nephrology Associates/Cleveland Clinic Akron General Medical Center, Akron, OH, USA
| | - Sidharth Kumar Sethi
- Pediatric Nephrology & Pediatric Kidney Transplantation, Kidney and Urology Institute, MedantaThe Medicity Hospital, Gurgaon, India
| | - Ronith Chakraborty
- Akron Nephrology Associates/Cleveland Clinic Akron General Medical Center, Akron, OH, USA.,Department of Nephrology, Akron Children's Hospital, Akron, OH, USA
| | - Prajit Khooblall
- Department of Internal Medicine, Northeast Ohio Medical University, Rootstown, OH, USA
| | - Nirav Agarwal
- Feinstein Institute for Medical Research, Northwell Health, Manhasset, NY, USA
| | - Manan Vij
- Akron Nephrology Associates/Cleveland Clinic Akron General Medical Center, Akron, OH, USA
| | - Franz Schaefer
- Department of Pediatric Nephrology, University Children's Hospital Heidelberg, Heidelberg, Germany
| | - Kunal Malhotra
- Division of Nephrology, University of Missouri School of Medicine, Columbia, MO, USA
| | - Madhukar Misra
- Division of Nephrology, University of Missouri School of Medicine, Columbia, MO, USA
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Hattori K, Sakaguchi Y, Kajimoto S, Asahina Y, Doi Y, Oka T, Kaimori JY, Isaka Y. Intradialytic hypotension and objectively measured physical activity among patients on hemodialysis. J Nephrol 2022; 35:1409-1418. [PMID: 35034338 DOI: 10.1007/s40620-021-01222-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 12/02/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Intradialytic hypotension is related to patient-reported outcomes such as post-dialysis fatigue, but its impact on physical activity has not been fully studied. We aimed to examine the relationship between intradialytic blood pressure (BP) and objectively measured physical activity. METHODS In this cross-sectional study, 192 hemodialysis patients underwent 4 weeks of physical activity measurement using triaxial accelerometers to measure step counts and moderate-to-vigorous physical activity (MVPA). Intradialytic BP parameters (pre-dialysis BP, post-dialysis BP, nadir BP, and fall in BP) were measured during all dialysis sessions. Mixed-effects linear regression models were used to analyze associations between intradialytic BP parameters and physical activity (1) after dialysis sessions on dialysis days and (2) on the following non-dialysis days. RESULTS The mean age of the patients was 71 years, and 47% had diabetes mellitus. Valid physical activity data were obtained in a total of 1938 dialysis days and 2629 non dialysis days. Lower nadir diastolic BP was significantly associated with lower step counts and shorter moderate-to-vigorous physical activity not only on dialysis days but also on the following non-dialysis days. Nadir diastolic BP showed a higher discrimination capacity for physical inactivity, defined as a step count < 4000 on non-dialysis days, than the other BP parameters. The optimal cutoff point of nadir diastolic BP for discriminating physical inactivity was 68 mmHg; its sensitivity and specificity were 66% and 67%, respectively. CONCLUSIONS Lower nadir diastolic BP was strongly associated with lower physical activity on both dialysis and non-dialysis days. Nadir diastolic BP may be a predictor for physical inactivity.
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Affiliation(s)
- Koki Hattori
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yusuke Sakaguchi
- Department of Inter-Organ Communication Research in Kidney Diseases, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, 565-0871, Japan
| | - Sachio Kajimoto
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yuta Asahina
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yohei Doi
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Tatsufumi Oka
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Jun-Ya Kaimori
- Department of Inter-Organ Communication Research in Kidney Diseases, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, 565-0871, Japan.
| | - Yoshitaka Isaka
- Department of Nephrology, Osaka University Graduate School of Medicine, Suita, Japan
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Snauwaert E, Wagner S, Jawa NA, Bruno V, McKay A, Kirpalani A, Nemec R, Teoh CW, Harvey EA, Zappitelli M, Licht C, Noone DG. Implementing a fluid volume management program to decrease intra-dialytic hypotensive events in a paediatric in-centre haemodialysis unit: a quality improvement project. Pediatr Nephrol 2022; 37:1105-1115. [PMID: 34643809 PMCID: PMC8513548 DOI: 10.1007/s00467-021-05298-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 09/07/2021] [Accepted: 09/07/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Intra-dialytic hypotension (IDH) is the most common serious adverse event in paediatric haemodialysis (HD). Repeated IDH results in chronic multi-organ damage and increased mortality. At the Hospital for Sick Children, Toronto, retrospective data from all in-centre HD sessions revealed frequently occurring IDH events (16.5 ± 5.6% of HD sessions per week). Based on literature review and clinical expertise, fluid volume management was selected as a potential modifiable risk factor to decrease IDH. Root causes identified as contributing to IDH were incorporated into a Paediatric haemodialysis fluid volume management (PedHDfluid) program using the Model for Improvement methodology including rapid cycles of change. METHODS Multiple measures were evaluated including (i) Outcome: IDH events per number of HD sessions per week; (ii) Process: number of changes to estimated dry weight per number of HD sessions per week; (iii) Balancing: time spent on dry weight meeting per week. Data was analysed using statistical process control charts. We aimed to decrease IDH in our dialysis unit to < 10% of HD sessions per week over a 6-month period by implementing a PedHDfluid program, including a multifaceted dry weight assessment protocol, multidisciplinary meetings and electronic health records "Dry Weight Evaluation flow sheet/synopsis". RESULTS The project resulted in a decline in IDH events from 16.5 ± 5.6% to 8.8 ± 3.3% of HD sessions per week. More frequent dry weight changes and increased awareness of fluid removal goals were noted. CONCLUSIONS A multidisciplinary approach including regular assessment, guidelines and systematic discussion, with an embedded electronic health record assessment and data gathering tool may sustainably reduce IDH events. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- Evelien Snauwaert
- grid.42327.300000 0004 0473 9646Division of Nephrology, The Hospital for Sick Children, Toronto, ON Canada
| | - Stéphanie Wagner
- grid.42327.300000 0004 0473 9646Division of Nephrology, The Hospital for Sick Children, Toronto, ON Canada
| | - Natasha A. Jawa
- grid.42327.300000 0004 0473 9646Division of Nephrology, The Hospital for Sick Children, Toronto, ON Canada
| | - Valentina Bruno
- grid.42327.300000 0004 0473 9646Division of Nephrology, The Hospital for Sick Children, Toronto, ON Canada
| | - Ashlene McKay
- grid.42327.300000 0004 0473 9646Division of Nephrology, The Hospital for Sick Children, Toronto, ON Canada
| | - Amrit Kirpalani
- grid.42327.300000 0004 0473 9646Division of Nephrology, The Hospital for Sick Children, Toronto, ON Canada
| | - Rosaleen Nemec
- grid.42327.300000 0004 0473 9646Division of Nephrology, The Hospital for Sick Children, Toronto, ON Canada
| | - Chia Wei Teoh
- grid.42327.300000 0004 0473 9646Division of Nephrology, The Hospital for Sick Children, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Paediatrics, University of Toronto, Toronto, ON Canada
| | - Elizabeth A. Harvey
- grid.42327.300000 0004 0473 9646Division of Nephrology, The Hospital for Sick Children, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Paediatrics, University of Toronto, Toronto, ON Canada
| | - Michael Zappitelli
- grid.42327.300000 0004 0473 9646Division of Nephrology, The Hospital for Sick Children, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Paediatrics, University of Toronto, Toronto, ON Canada
| | - Christoph Licht
- grid.42327.300000 0004 0473 9646Division of Nephrology, The Hospital for Sick Children, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Paediatrics, University of Toronto, Toronto, ON Canada
| | - Damien G. Noone
- grid.42327.300000 0004 0473 9646Division of Nephrology, The Hospital for Sick Children, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Paediatrics, University of Toronto, Toronto, ON Canada ,grid.42327.300000 0004 0473 9646Division of Paediatric Nephrology, SickKids, 555 University Avenue, Toronto, ON M5G 1X8 Canada
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46
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Knehtl M, Petreski T, Piko N, Ekart R, Bevc S. Polypharmacy and Mental Health Issues in the Senior Hemodialysis Patient. Front Psychiatry 2022; 13:882860. [PMID: 35633796 PMCID: PMC9133494 DOI: 10.3389/fpsyt.2022.882860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 04/25/2022] [Indexed: 11/13/2022] Open
Abstract
Hemodialysis (HD) is the most common method of chronic kidney failure (CKF) treatment, with 65% of European patients with CKF receiving HD in 2018. Regular two to three HD sessions weekly severely lower their quality of life, resulting in a higher incidence of depression and anxiety, which is present in one third to one half of these patients. Additionally, the age of patients receiving HD is increasing with better treatment and care, resulting in more cognitive impairment being uncovered. Lastly, patients with other mental health issues can also develop CKF during their life with need for kidney replacement therapy (KRT). All these conditions need to receive adequate care, which often means prescribing psychotropic medications. Importantly, many of these drugs are eliminated through the kidneys, which results in altered pharmacokinetics when patients receive KRT. This narrative review will focus on common issues and medications of CKF patients, their comorbidities, mental health issues, use of psychotropic medications and their altered pharmacokinetics when used in HD, polypharmacy, and drug interactions, as well as deprescribing algorithms developed for these patients.
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Affiliation(s)
- Maša Knehtl
- Department of Nephrology, University Medical Center Maribor, Maribor, Slovenia
| | - Tadej Petreski
- Department of Nephrology, University Medical Center Maribor, Maribor, Slovenia.,Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Nejc Piko
- Department of Dialysis, University Medical Center Maribor, Maribor, Slovenia
| | - Robert Ekart
- Faculty of Medicine, University of Maribor, Maribor, Slovenia.,Department of Dialysis, University Medical Center Maribor, Maribor, Slovenia
| | - Sebastjan Bevc
- Department of Nephrology, University Medical Center Maribor, Maribor, Slovenia.,Faculty of Medicine, University of Maribor, Maribor, Slovenia
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Wolfgram DF, Novotny J, Goodman MJ, Visotcky A, Laud P, Barnes JN. Risk factors for intradialytic decline in cerebral perfusion and impaired cerebral autoregulation in adults on hemodialysis. Hemodial Int 2022; 26:48-56. [PMID: 34318584 PMCID: PMC9814236 DOI: 10.1111/hdi.12974] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 07/09/2021] [Accepted: 07/18/2021] [Indexed: 01/11/2023]
Abstract
INTRODUCTION Hemodialysis (HD) patients have significant burden of cerebral ischemic pathology noted on brain imaging. These ischemic type lesions maybe due to cerebral hypoperfusion that may be occurring during blood pressure (BP) fluctuations commonly noted during HD sessions. We evaluated changes in cerebral perfusion and measured an index of cerebral autoregulation (CA index) during HD to identify potential risk factors for intradialytic decline in cerebral perfusion and impaired cerebral autoregulation. METHODS In this cross-sectional study, we included HD patients age 50 years or older receiving conventional in-center HD. We measured cerebral perfusion during HD, using cerebral oximetry, and calculated the correlation between cerebral perfusion and BP during HD as an index of CA. We measured the association between potential risk factors for intradialytic decline in cerebral perfusion and CA index. FINDINGS We included 32 participants and 118 HD sessions in our analysis. The mean ± SD decline in cerebral oxygen saturation during HD was 6.5% ± 2.9% with a relative decline from baseline values of 9.2% ± 4.4%. Greater drop in systolic BP (SBP) during HD was associated with decline in cerebral oxygen saturation, p = 0.02. Impaired CA index was noted in 37.3% of HD sessions. Having diabetes and >20 mmHg drop in SBP during HD were associated with increased (worse) CA index with an increase of 0.24 95%CI [0.06, 0.41] for diabetes and increase of 0.43 95%CI [0.27, 0.56] for a >20 mmHg drop in SBP during HD. DISCUSSION Cerebral perfusion can decline during HD and is associated with changes in systemic BP. This may be due to impaired cerebral autoregulation in HD patients. Risk factors for worse CA index include diabetes and >20 mmHg drop in SBP during HD. This study highlights the risk of intradialytic decline in cerebral perfusion and impaired cerebral autoregulation in HD patients.
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Affiliation(s)
- Dawn F. Wolfgram
- Medical College of Wisconsin, Department of Medicine-Division of Nephrology,Milwaukee VA Medical Center
| | | | | | - Alexis Visotcky
- Medical College of Wisconsin, Institute for Health and Equality-Division of Biostatistics
| | - Purushottam Laud
- Medical College of Wisconsin, Institute for Health and Equality-Division of Biostatistics
| | - Jill N. Barnes
- University of Wisconsin Madison, Department of Kinesiology-Bruno Balke Biodynamics Laboratory
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Liabeuf S, Pepin M, Franssen CFM, Viggiano D, Carriazo S, Gansevoort RT, Gesualdo L, Hafez G, Malyszko J, Mayer C, Nitsch D, Ortiz A, Pešić V, Wiecek A, Massy ZA. Chronic kidney disease and neurological disorders: are uraemic toxins the missing piece of the puzzle? Nephrol Dial Transplant 2021; 37:ii33-ii44. [PMID: 34718753 PMCID: PMC8713157 DOI: 10.1093/ndt/gfab223] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Indexed: 02/07/2023] Open
Abstract
Chronic kidney disease (CKD) perturbs the crosstalk with others organs, with the interaction between the kidneys and the heart having been studied most intensively. However, a growing body of data indicates that there is an association between kidney dysfunction and disorders of the central nervous system. In epidemiological studies, CKD is associated with a high prevalence of neurological complications, such as cerebrovascular disorders, movement disorders, cognitive impairment and depression. Along with traditional cardiovascular risk factors (such as diabetes, inflammation, hypertension and dyslipidaemia), non-traditional risk factors related to kidney damage (such as uraemic toxins) may predispose patients with CKD to neurological disorders. There is increasing evidence to show that uraemic toxins, for example indoxyl sulphate, have a neurotoxic effect. A better understanding of factors responsible for the elevated prevalence of neurological disorders among patients with CKD might facilitate the development of novel treatments. Here, we review (i) the potential clinical impact of CKD on cerebrovascular and neurological complications, (ii) the mechanisms underlying the uraemic toxins' putative action (based on pre-clinical and clinical research) and (iii) the potential impact of these findings on patient care.
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Affiliation(s)
- Sophie Liabeuf
- Department of Pharmacology, Amiens University Medical Center, Amiens, France
- MP3CV Laboratory, EA7517, University of Picardie Jules Verne, Amiens, France
| | - Marion Pepin
- Université Paris-Saclay, UVSQ, Inserm, Clinical Epidemiology Team, CESP (Centre de Recherche en Epidémiologie et Santé des Populations), Villejuif, France
- Department of Geriatrics, Ambroise Paré University Medical Center, APHP, Boulogne-Billancourt, France
| | - Casper F M Franssen
- Department of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Davide Viggiano
- Department of Nephrology, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Sol Carriazo
- Department of Nephrology and Hypertension, IIS-Fundacion Jimenez Diaz UAM, Madrid, Spain
| | - Ron T Gansevoort
- Department of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Loreto Gesualdo
- Department of Emergency and Organ Transplantation, University of Bari “Aldo Moro”, Bari, Italy
| | - Gaye Hafez
- Department of Pharmacology, Faculty of Pharmacy, Altinbas University, Istanbul, Turkey
| | - Jolanta Malyszko
- Department of Nephrology, Dialysis and Internal Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Christopher Mayer
- Center for Health and Bioresources, Biomedical Systems, AIT Austrian Institute of Technology, Vienna, Austria
| | - Dorothea Nitsch
- Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - Alberto Ortiz
- Department of Nephrology and Hypertension, IIS-Fundacion Jimenez Diaz UAM, Madrid, Spain
| | - Vesna Pešić
- Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Andrzej Wiecek
- Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia, in Katowice, Katowice, Poland
| | - Ziad A Massy
- Université Paris-Saclay, UVSQ, Inserm, Clinical Epidemiology Team, CESP (Centre de Recherche en Epidémiologie et Santé des Populations), Villejuif, France
- Department of Nephrology, Ambroise Paré University Medical Center, APHP, Boulogne-Billancourt/Paris, France
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49
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Idrovo A, Pignatelli R, Loar R, Nieuwsma A, Geer J, Solomon C, Swartz S, Ghanayem N, Akcan-Arikan A, Srivaths P. Preserved Cerebral Oxygenation with Worsening Global Myocardial Strain during Pediatric Chronic Hemodialysis. J Am Soc Nephrol 2021; 32:2912-2919. [PMID: 34518280 PMCID: PMC8806109 DOI: 10.1681/asn.2021020193] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 08/03/2021] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Cerebral and myocardial hypoperfusion occur during hemodialysis in adults. Pediatric patients receiving chronic hemodialysis have fewer cardiovascular risk factors, yet cardiovascular morbidity remains prominent. METHODS We conducted a prospective observational study of pediatric patients receiving chronic hemodialysis to investigate whether intermittent hemodialysis is associated with adverse end organ effects in the heart or with cerebral oxygenation (regional tissue oxyhemoglobin saturation [rSO2]). We assessed intradialytic cardiovascular function and rSO2 using noninvasive echocardiography to determine myocardial strain and continuous noninvasive near-infrared spectroscopy for rSO2. We measured changes in blood volume and measured central venous oxygen saturation (mCVO2) pre-, mid-, and post-hemodialysis. RESULTS The study included 15 patients (median age, 12 years; median hemodialysis vintage, 13.2 [9-24] months). Patients were asymptomatic. The rSO2 did not change during hemodialysis, whereas mCVO2 decreased significantly, from 73% to 64.8%. Global longitudinal strain of the myocardium worsened significantly by mid-hemodialysis and persisted post-hemodialysis. The ejection fraction remained normal. Lower systolic BP and faster blood volume change were associated with worsening myocardial strain; only blood volume change was significant in multivariate analysis (β-coefficient, -0.3; 95% confidence interval [CI], -0.38 to -0.21; P<0.001). Blood volume change was also associated with a significant decrease in mCVO2 (β-coefficient, 0.42; 95% CI, 0.07 to 0.76; P=0.001). Access, age, hemodialysis vintage, and ultrafiltration volume were not associated with worsening strain. CONCLUSIONS Unchanged rSO2 suggested that cerebral oxygenation was maintained during hemodialysis. However, despite maintained ejection fraction, intradialytic myocardial strain worsened in pediatric hemodialysis and was associated with blood volume change. The effect of hemodialysis on individual organ perfusion in pediatric versus adult patients receiving hemodialysis might differ.
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Affiliation(s)
- Alexandra Idrovo
- Department of Pediatrics, Renal Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Ricardo Pignatelli
- Department of Pediatrics, Cardiology Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Robert Loar
- Department of Pediatrics, Cardiology Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Asela Nieuwsma
- Department of Pediatrics, Cardiology Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Jessica Geer
- Department of Pediatrics, Renal Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Catharina Solomon
- Department of Pediatrics, Renal Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Sarah Swartz
- Department of Pediatrics, Renal Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Nancy Ghanayem
- Department of Pediatrics, Critical Care Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Ayse Akcan-Arikan
- Department of Pediatrics, Renal Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas,Department of Pediatrics, Critical Care Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
| | - Poyyapakkam Srivaths
- Department of Pediatrics, Renal Section, Baylor College of Medicine/Texas Children’s Hospital, Houston, Texas
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50
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Wong A, Robinson L, Soroush S, Suresh A, Yang D, Madu K, Harhay MN, Pourrezaei K. Assessment of cerebral oxygenation response to hemodialysis using near-infrared spectroscopy (NIRS): Challenges and solutions. JOURNAL OF INNOVATIVE OPTICAL HEALTH SCIENCES 2021; 14:2150016. [PMID: 35173820 PMCID: PMC8846418 DOI: 10.1142/s1793545821500164] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
To date, the clinical use of functional near-infrared spectroscopy (NIRS) to detect cerebral ischemia has been largely limited to surgical settings, where motion artifacts are minimal. In this study, we present novel techniques to address the challenges of using NIRS to monitor ambulatory patients with kidney disease during approximately eight hours of hemodialysis (HD) treatment. People with end-stage kidney disease who require HD are at higher risk for cognitive impairment and dementia than age-matched controls. Recent studies have suggested that HD-related declines in cerebral blood flow might explain some of the adverse outcomes of HD treatment. However, there are currently no established paradigms for monitoring cerebral perfusion in real-time during HD treatment. In this study, we used NIRS to assess cerebral hemodynamic responses among 95 prevalent HD patients during two consecutive HD treatments. We observed substantial signal attenuation in our predominantly Black patient cohort that required probe modifications. We also observed consistent motion artifacts that we addressed by developing a novel NIRS methodology, called the HD cerebral oxygen demand algorithm (HD-CODA), to identify episodes when cerebral oxygen demand might be outpacing supply during HD treatment. We then examined the association between a summary measure of time spent in cerebral deoxygenation, derived using the HD-CODA, and hemodynamic and treatment-related variables. We found that this summary measure was associated with intradialytic mean arterial pressure, heart rate, and volume removal. Future studies should use the HD-CODA to implement studies of real-time NIRS monitoring for incident dialysis patients, over longer time frames, and in other dialysis modalities.
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Affiliation(s)
- Ardy Wong
- Drexel University School of Bioengineering, Philadelphia, Pennsylvania
| | - Lucy Robinson
- Department of Epidemiology & Biostatistics, Drexel University Dornsife School of Public Health, Philadelphia, Pennsylvania
| | - Seena Soroush
- Drexel University College of Arts and Sciences, Philadelphia, Pennsylvania
| | - Aditi Suresh
- Department of Medicine, Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Dia Yang
- Department of Medicine, Drexel University College of Medicine, Philadelphia, Pennsylvania
| | - Kelechi Madu
- Drexel University School of Bioengineering, Philadelphia, Pennsylvania
| | - Meera N. Harhay
- Department of Epidemiology & Biostatistics, Drexel University Dornsife School of Public Health, Philadelphia, Pennsylvania
- Department of Medicine, Drexel University College of Medicine, Philadelphia, Pennsylvania
- Tower Health Transplant Institute, Tower Health System, West Reading, Pennsylvania
| | - Kambiz Pourrezaei
- Drexel University School of Bioengineering, Philadelphia, Pennsylvania
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