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Tosberg JH, Mork H, Klimas R, Radermacher J, Schellinger PD, Philipps J. Nerve cross-sectional area in advanced uremic neuropathy: A nerve ultrasound pilot study. J Neuroimaging 2024; 34:486-492. [PMID: 38764165 DOI: 10.1111/jon.13205] [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: 01/20/2024] [Revised: 03/15/2024] [Accepted: 04/09/2024] [Indexed: 05/21/2024] Open
Abstract
BACKGROUND AND PURPOSE Uremic neuropathy (UN) is a disabling neuropathy in end-stage kidney disease (ESKD) affecting the majority of patients receiving long-term hemodialysis (HD). One previous nerve ultrasound study reported an increased cross-sectional area (CSA) of the median nerve in moderate UN, while another study found enlarged sural nerves in small-fiber polyneuropathy associated with ESKD. The present cohort study aims to analyze bilateral CSA of multiple nerves in UN. METHODS Ten nondiabetic ESKD patients with UN on HD for at least 2 years and 10 healthy age-matched controls underwent bilateral ultrasound examinations with CSA measurements in 13 arm and leg nerve sites. Nerve conduction studies (NCS) and the total neuropathy score (TNS) were recorded. Pearson's coefficient and the Mann-Whitney U-test were used to analyze correlations and compare groups. RESULTS ESKD patients presented advanced neuropathic symptoms (mean TNS 15.9). NCS showed significantly reduced motor and sensory amplitudes in the UN group compared to the control group, and a slightly reduced nerve CSA was observed in 5 of 13 nerve sites (p < .05); the other nerve sites were not enlarged. Sural nerve CSA (p < .05) and sensory amplitude (p < .01) were negatively correlated with the TNS. CONCLUSIONS Nerve enlargement was not observed in the present study in advanced UN. A reduced nerve CSA observed in the sural nerve suggests an axonal loss associated with long-term HD in ESKD. During clinical workup of an acute disease of the peripheral nervous system in ESKD patients, nerve enlargement might be attributable to other causes than chronic UN.
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Affiliation(s)
- Jan-Hendrik Tosberg
- Department of Neurology and Neurogeriatrics, Johannes Wesling Klinikum Minden, Ruhr-University Bochum, Bochum, Germany
| | - Hannah Mork
- Department of Neurology and Neurogeriatrics, Johannes Wesling Klinikum Minden, Ruhr-University Bochum, Bochum, Germany
| | - Rafael Klimas
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Jörg Radermacher
- Department of Nephrology and Hemodialysis, Johannes Wesling Klinikum Minden, Ruhr-University Bochum, Bochum, Germany
| | - Peter Dieter Schellinger
- Department of Neurology and Neurogeriatrics, Johannes Wesling Klinikum Minden, Ruhr-University Bochum, Bochum, Germany
| | - Jörg Philipps
- Department of Neurology and Neurogeriatrics, Johannes Wesling Klinikum Minden, Ruhr-University Bochum, Bochum, Germany
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Chiu LT, Lin YL, Wang CH, Hwu CM, Liou HH, Hsu BG. Electrochemical Skin Conductance by Sudoscan in Non-Dialysis Chronic Kidney Disease Patients. J Clin Med 2023; 13:187. [PMID: 38202194 PMCID: PMC10779764 DOI: 10.3390/jcm13010187] [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: 11/22/2023] [Revised: 12/14/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Peripheral neuropathy is prevalent among patients with chronic kidney disease (CKD). Sudoscan non-invasively detects polyneuropathy by measuring electrochemical skin conductance (ESC). We conducted a study on sudomotor function in CKD patients across various stages based on their estimated glomerular filtration rate (eGFR). METHODS In this cross-sectional study of 700 CKD patients, all underwent Sudoscan. Pathological ESC was defined as hands < 40 μS or feet < 50 μS. Clinical neuropathy scores including Michigan Neuropathy Screening Instrument (MNSI) and Douleur Neuropathique en 4 questionnaire (DN4) were obtained. RESULTS Among participants, 344 had diabetes and 356 did not. Hands and feet ESC decreased with CKD progression (median (IQR) in stage 1-2, 3, 4-5: 54.0 (39.0-68.0), 45.5 (30.0-63.0), 41.8 (26.5-60.5), p trend < 0.001; 64.5 (53.5-74.0), 60.5 (43.0-72.5), 55.0 (39.0-69.8), p trend < 0.001). Pathological hands and feet ESC increased in later CKD stages (stage 1-2, 3, 4-5: 26.6%, 40.9%, 45.7%, p trend < 0.001; 21.7%, 34.0%, 40.6%, p trend < 0.001). Positive hands and feet ESC-eGFR correlation existed irrespective of diabetes. Diabetic patients had lower hands and feet ESC than non-diabetics as CKD progressed. However, multivariate regression found no significant ESC-eGFR association. Sudoscan correlated with clinical neuropathy scores. CONCLUSION Pathological sudomotor function was common in non-dialysis CKD stages 4-5. Diabetic patients had worse function. Sudomotor dysfunction progressed with renal disease but eGFR was not an independent risk factor.
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Affiliation(s)
- Liang-Te Chiu
- Division of Nephrology, Department of Internal Medicine, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi 62247, Taiwan;
| | - Yu-Li Lin
- Division of Nephrology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 97004, Taiwan; (Y.-L.L.); (C.-H.W.)
- School of Medicine, Tzu Chi University, Hualien 97004, Taiwan
| | - Chih-Hsien Wang
- Division of Nephrology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 97004, Taiwan; (Y.-L.L.); (C.-H.W.)
- School of Medicine, Tzu Chi University, Hualien 97004, Taiwan
| | - Chii-Min Hwu
- Section of Endocrinology and Metabolism, Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan;
| | - Hung-Hsiang Liou
- Division of Nephrology, Department of Medicine, Hsin-Jen Hospital, New Taipei City 242009, Taiwan
| | - Bang-Gee Hsu
- Division of Nephrology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien 97004, Taiwan; (Y.-L.L.); (C.-H.W.)
- School of Medicine, Tzu Chi University, Hualien 97004, Taiwan
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The effect of a 9-month hybrid intradialytic exercise training program on nerve conduction velocity parameters in patients receiving hemodialysis therapy. Int Urol Nephrol 2022; 54:3271-3281. [PMID: 35789452 DOI: 10.1007/s11255-022-03266-6] [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: 10/15/2021] [Accepted: 05/16/2022] [Indexed: 10/17/2022]
Abstract
INTRODUCTION AND AIMS Neurological complications such as peripheral neuropathy are very common in the end-stage renal disease (ESRD) patients, occurring in 60-80% of this specific population. The aim of the present study was to examine whether a 9-month hybrid intradialytic exercise training program could alter motor and sensory nerve conduction study (NCS) parameters in hemodialysis population. METHODS Seventeen stable patients undergoing HD with no clinical evidence of uremic polyneuropathy were included in the study (15 M/2F, 59 ± 13.7 years). All patients completed a 9-month supervised exercise training program composed of both aerobic cycling and resistance training (hybrid) during HD. Functional capacity was assessed by a battery of tests, while pain levels and fatigue profile were assessed via validated questionnaires. Motor and sensory NCS on bilateral median, ulnar, peroneal and tibial nerves as well as F-wave were assessed using a full neurographic electromyography (EMG) assessment. RESULTS After the 9-month exercise training intervention, exercise capacity was increased by 65% and functional capacity by an average of 40%. The neurological assessment showed that conduction velocity from tibial and peroneal nerves was improved by 3.7% and 4.2%, respectively, while tibial F-wave latency and peroneal and sural nerve distal latency were significantly improved by 4.2%, 4.9% and 10%, respectively. Fatigue and pain were improved after the exercise intervention while fatigue score was positively correlated with conduction velocity and amplitude values. CONCLUSIONS The results of the current study demonstrate that 9-month hybrid exercise training induces beneficial effects on both sensory and motor NCS parameters, improving conduction velocity and F-wave latency. Improvements in neural activity were accompanied by changes in fatigue score and pain-related aspects. The parallel improvement in motor nerve conduction velocity and its correlations with functional tests supports the hypothesis that exercise could be beneficial for preventing a decline in neural function in HD patients.
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Sonbhadra A, Reddy BVC, Saini AG, Tiewsoh K, Paria P, Kesavan S, Suthar R, Dawman L, Attri S. Peripheral Neuropathy in Children With Chronic Kidney Disease: Are We Looking Enough? Ann Indian Acad Neurol 2022; 25:389-393. [PMID: 35936645 PMCID: PMC9350774 DOI: 10.4103/aian.aian_1067_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 01/26/2022] [Accepted: 04/04/2022] [Indexed: 11/30/2022] Open
Abstract
Background: Peripheral neuropathy in chronic kidney disease (CKD) is the most common neurological complication. We aimed to look at the prevalence and patterns of neuropathy in children with CKD. Methods: This cross-sectional study was conducted over 1 year in children with CKD, stage III and above. Nerve conduction studies (NCS) were performed as per standard protocols using surface electrodes on the muscles and by supramaximal stimulation of the corresponding nerves. Presence of electrophysiological abnormalities in the absence of clinical symptoms or signs was considered as subclinical neuropathy. Results: Nearly 45 children were evaluated. The majority were males (n = 39, 86.7%). The mean age was 7.9 ± 3 years (range 2–14). The mean estimated glomerular filtration rate (GFR) at enrolment was 23.3 ± 14.6 mL/min/1.73 m2 (range 5–67). The majority of children were in stage III (n = 19, 42%), followed by stages V (n = 15, 33%) and IV (n = 11, 25%). There was no evidence of clinical neuropathy; 13 children (29%) showed subclinical neuropathy. All the nerves had an axonal pattern of involvement. Motor polyneuropathy was most common type of peripheral neuropathy. The commonest nerves involved were tibial and common peroneal nerves. There were no biochemical or clinical predictors of neuropathy in our cohort. Conclusion: The prevalence of subclinical neuropathy is high in children with CKD, stage III and above. Axonal motor polyneuropathy is the predominant pattern. Electrophysiological assessment of nerve function should be routinely done in children with advanced stages of CKD to prevent chronic complications.
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Affiliation(s)
- Ahibhushan Sonbhadra
- Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Bandi V Chaithanya Reddy
- Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Arushi G Saini
- Department of Pediatrics, Pediatric Neurology Unit, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Kara Tiewsoh
- Department of Pediatrics, Pediatric Nephrology Unit, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Pradip Paria
- Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Shivan Kesavan
- Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Renu Suthar
- Department of Pediatrics, Pediatric Neurology Unit, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Lesa Dawman
- Department of Pediatrics, Pediatric Nephrology Unit, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Savita Attri
- Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Zhang W, Roberts L. The Presence and Significance of A-Waves-A Retrospective Review of 679 Patients. J Clin Neurophysiol 2022; 39:222-227. [PMID: 32756267 DOI: 10.1097/wnp.0000000000000760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
PURPOSE A-waves are late responses that have been reported in healthy individuals and patients with neurologic conditions. The mechanism(s) responsible for their generation and their clinical significance are not fully understood. The aim was to better characterize A-waves. METHODS A retrospective study was conducted in a high-volume Neurophysiology Department in a tertiary hospital in Melbourne, Australia. Consecutive neurophysiological tests including F-wave studies performed between July 2017 and September 2018 were reviewed to identify A-waves. Patients' characteristics and neurophysiological diagnoses were recorded. RESULTS A total of 679 patients were included in the analysis and a total of 2,730 nerves were studied. A-waves were most commonly found in tibial nerves, followed by peroneal, median, and ulnar nerves. A-waves were seen in 39.4% of individuals with otherwise normal nerve conduction studies and 39.1% of individuals with entrapment neuropathy. They were most seen in demyelinating neuropathy (85.7%), followed by mixed neuropathy (73.3%), anterior horn cell disease (66.7%), axonal neuropathy (61.2%), and radiculopathy (53.1%). Most patients with demyelinating neuropathy had multiple A-waves (61.9%), but these were also seen in 15.2% of individuals with otherwise normal nerve conduction studies and in 40% of those with other neurologic conditions. A-waves were more often seen in individuals older than 60 years. CONCLUSIONS A-waves are commonly seen in symptomatic individuals with otherwise normal nerve conduction studies and individuals with various neurologic conditions but are more commonly found in nerves with otherwise abnormal electrophysiological testing. A-waves are most seen in tibial nerves. Multiple A-waves were more commonly seen in demyelinating neuropathy than other conditions.
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Affiliation(s)
- WenWen Zhang
- Neurophysiology Department, Department of Neurology & Neurological Research, St Vincent's Hospital, Melbourne, Australia ; and
| | - Leslie Roberts
- Neurophysiology Department, Department of Neurology & Neurological Research, St Vincent's Hospital, Melbourne, Australia ; and
- Department of Medicine, The University of Melbourne, Melbourne, Australia
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Li X, Sun H, Zhang Z, Liu J, Xu H, Ma L, Zhang H, Li J, Luo Q, Wang X, Guo M, Guo Z, Chen X. Shear Wave Elastography in the Diagnosis of Peripheral Neuropathy in Patients With Chronic Kidney Disease Stage 5. Front Endocrinol (Lausanne) 2022; 13:899822. [PMID: 35813645 PMCID: PMC9259929 DOI: 10.3389/fendo.2022.899822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 05/19/2022] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE To observe the feasibility of shear wave elastography (SWE) in the diagnosis of peripheral neuropathy in patients undergoing hemodialysis [chronic kidney disease stage 5 dialysis (CKD5D)]. METHODS Forty patients with CKD5D were divided into a uremic peripheral neuropathy (UPN) group (n = 25) and a non-UPN group (n = 15) according to the results of a neuro-electrophysiological examination. Sixteen healthy control subjects were also enrolled in this study. Two-dimensional ultrasound examination was conducted, and SWE was then performed to measure Young's modulus of the tibial nerve. The left and right diameters (D1), anterior and posterior diameters (D2), perimeter (C), cross-sectional area (CSA), and Young's modulus (E) were measured three times at the same non-entrapment site. The average values were recorded and calculated. The following evaluation indices were also analyzed: sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and area under the receiver operating characteristic curve (AUC). RESULTS D1, D2, C, and CSA were not significantly different among the three groups (P > 0.05). However, the difference in the E value among the three groups was statistically significant (P < 0.05). The AUC was 0.889 based on the E value. Using a tibial nerve E value of 48.35 kPa as the cutoff value, the sensitivity, specificity, PPV, and NPV were 86.0%, 84.0%, 81.1%, and 88.1%, respectively. CONCLUSIONS SWE is useful for the diagnosis of peripheral neuropathy in patients with CKD5D. Young's modulus of 48.35 kPa for the tibial nerve is the optimal cutoff value and has the best diagnostic efficiency for peripheral neuropathy in CKD5D patients.
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Affiliation(s)
- Xuan Li
- Department of Nephrology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Haoqi Sun
- Department of Nephrology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Zhaoguang Zhang
- Department of Ultrasound, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Jing Liu
- Department of Electrophysiology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Huiying Xu
- Department of Nephrology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Lin Ma
- Department of Nephrology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Haibo Zhang
- Department of Nephrology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Jialin Li
- Department of Nephrology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Qian Luo
- Department of Ultrasound, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Xiangming Wang
- Department of Nephrology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Min Guo
- Department of Nephrology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Zhentao Guo
- Department of Nephrology, Affiliated Hospital of Weifang Medical University, Weifang, China
- *Correspondence: Xuexun Chen, ; Zhentao Guo,
| | - Xuexun Chen
- Department of Nephrology, Affiliated Hospital of Weifang Medical University, Weifang, China
- *Correspondence: Xuexun Chen, ; Zhentao Guo,
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Gollie JM, Harris-Love MO, Patel SS, Shara NM, Blackman MR. Rate of Force Development Is Related to Maximal Force and Sit-to-Stand Performance in Men With Stages 3b and 4 Chronic Kidney Disease. FRONTIERS IN REHABILITATION SCIENCES 2021; 2. [PMID: 34708217 PMCID: PMC8547335 DOI: 10.3389/fresc.2021.734705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Introduction: The primary aims of the present study were to assess the relationships of early (0–50 ms) and late (100–200 ms) knee extensor rate of force development (RFD) with maximal voluntary force (MVF) and sit-to-stand (STS) performance in participants with chronic kidney disease (CKD) not requiring dialysis. Methods: Thirteen men with CKD (eGFR = 35.17 ±.5 ml/min per 1.73 m2, age = 70.56 ±.4 years) and 12 non-CKD men (REF) (eGFR = 80.31 ± 4.8 ml/min per 1.73 m2, age = 70.22 ±.9 years) performed maximal voluntary isometric contractions to determine MVF and RFD of the knee extensors. RFD was measured at time intervals 0–50 ms (RFD0−50) and 100–200 ms (RFD100−200). STS was measured as the time to complete five repetitions. Measures of rectus femoris grayscale (RF GSL) and muscle thickness (RF MT) were obtained via ultrasonography in the CKD group only. Standardized mean differences (SMD) were used to examine differences between groups. Bivariate relationships were assessed by Pearson's product moment correlation. Results: Knee extensor MVF adjusted for body weight (CKD=17.14 ±.1 N·kg0.67, REF=21.55 ±.3 N·kg0.67, SMD = 0.79) and STS time (CKD = 15.93 ±.4 s, REF = 12.23 ±.7 s, SMD = 1.03) were lower in the CKD group than the REF group. Absolute RFD100−200 was significantly directly related to adjusted MVF in CKD (r = 0.56, p = 0.049) and REF (r = 0.70, p = 0.012), respectively. STS time was significantly inversely related to absolute (r = −0.75, p = 0.008) and relative RFD0−50 (r = −0.65, p = 0.030) in CKD but not REF (r = 0.08, p = 0.797; r = 0.004, p = 0.991). Significant inverse relationships between RF GSL adjusted for adipose tissue thickness and absolute RFD100−200 (r =−0.59, p = 0.042) in CKD were observed. Conclusion: The results of the current study highlight the declines in strength and physical function that occur in older men with CKD stages 3b and 4 not requiring dialysis. Moreover, early RFD was associated with STS time in CKD while late RFD was associated MVF in both CKD and REF. Clinical Trial Registration: ClinicalTrials.gov, identifier: NCT03160326 and NCT02277236.
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Affiliation(s)
- Jared M Gollie
- Skeletal Muscle Laboratory, Research Service, Washington, DC, United States.,George Washington University, Health, Human Function, and Rehabilitation Sciences, Washington, DC, United States.,George Mason University, Rehabilitation Science, Fairfax, VA, United States
| | - Michael O Harris-Love
- Department of Physical Medicine and Rehabilitation, University of Colorado Anschutz Medical Campus, Aurora, CO, United States.,Muscle Morphology, Mechanics and Performance Laboratory, Eastern Colorado VA Geriatric Research Education and Clinical Center, Aurora, CO, United States
| | - Samir S Patel
- Renal Service, Washington DC VAMC, Washington, DC, United States.,Department of Medicine, George Washington University, Washington, DC, United States
| | - Nawar M Shara
- Department of Biostatistics and Biomedical Informatics, MedStar Health Research Institute, Washington, DC, United States
| | - Marc R Blackman
- Department of Medicine, George Washington University, Washington, DC, United States.,Research Service, Washington DC VAMC, Washington, DC, United States.,Departments of Medicine and Rehabilitation Medicine, Georgetown University, Washington, DC, United States
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Neuropathy - Exponent of Accelerated Involution in Uremia: The Role of Carbamylation. SERBIAN JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2021. [DOI: 10.2478/sjecr-2021-0013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Premature loss of functional integrity of the nervous system in chronic renal failure (CRF) as a consequence of persistent biological activities of the general uremic milieu is almost identical to its structural and functional involution during the process of physiological ageing, but disproportionate and independent of chronological age. In the hyperuremic status of CRF (urea - carbamide), forced carbamylation, as a non-enzymatic post-translational modification (NEPTM) of proteins and amino acids, by changing their biological properties and decreasing proteolysis capacity, represents pathogenetic potential of intensified molecular ageing and accelerated, pathological involution. Physiological predisposition and the exposure of neuropathy before complications of other organs and organ systems in CRF, due to the simultaneous and mutually pathogenetically related uremic lesion and the tissue and vascular segment of the nervous system, direct interest towards proteomic analytical techniques of quantification of carbamylated products as biomarkers of uremic neurotoxicity. Hypothetically, identical to the already established applications of other NEPTM products in practice, they have the potential of clinical methodology in the evaluation of uremic neuropathy and its contribution to the general prediction, but also to the change of the conventional CRF classification. In addition, the identification and therapeutic control of the substrate of accelerated involution, responsible for the amplification of not only neurological but also general degenerative processes in CRF, is attractive in the context of the well-known attitude towards aging.
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Ferdousi M, Azmi S, Kalteniece A, Khan SU, Petropoulos IN, Ponirakis G, Alam U, Asghar O, Marshall A, Soran H, Boulton AJM, Augustine T, Malik RA. No evidence of improvement in neuropathy after renal transplantation in patients with end stage kidney disease. J Peripher Nerv Syst 2021; 26:269-275. [PMID: 34085731 DOI: 10.1111/jns.12456] [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: 12/18/2020] [Revised: 02/20/2021] [Accepted: 02/24/2021] [Indexed: 11/29/2022]
Abstract
To assess the impact of renal transplantation on peripheral nerve damage in patients with chronic kidney disease (CKD). Fifteen patients with CKD (eGFR <15 mL/min/1.73 m2 ) underwent longitudinal assessment after renal transplantation (age: 56.88 ± 2.53 years, eGFR: 46.82 ± 4.86) and were compared with 15 age-matched controls (age: 58.25 ± 2.18 years, eGFR: 86.0 ± 2.0). The neuropathy symptom profile (NSP), neuropathy disability score (NDS), vibration perception threshold (VPT), cold and warm sensation threshold (CST and WST), cold and heat induced pain (CIP and HIP), deep breathing heart rate variability (DB-HRV), nerve conduction studies and corneal confocal microscopy (CCM) to quantify small nerve fibre pathology, were undertaken within 1-month of renal transplantation (baseline) and at 6, 12 and 24 months of follow up. There was no significant difference in NSP (P = .1), NDS (P = .3), VPT (P = .6), CST (P = .2), CIP (P = .08), HIP (P = .1), DB-HRV (P = .9) and sural (P = .4) and peroneal (P = .1) nerve amplitude between patients with CKD and controls at baseline. However, sural (P = .04), peroneal (P = .002) and tibial (P = .007) nerve conduction velocity and tibial nerve amplitude (P = .03) were significantly lower, WST (P = .02) was significantly higher and corneal nerve fibre density (P = .004) was significantly lower in patients with CKD compared with controls. There was no significant change in NSP, NDS, quantitative sensory testing, DB-HRV, nerve conduction or CCM parameters 24 months after renal transplantation. There is evidence of small and large fibre neuropathy in patients with CKD, but no change up to 24 months after successful renal transplantation.
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Affiliation(s)
- Maryam Ferdousi
- Division of Cardiovascular Sciences, Cardiac Centre, Faculty of Biology, Medicine and Health, University of Manchester and NIHR/Wellcome Trust Clinical Research Facility, Manchester, UK
| | - Shazli Azmi
- Division of Cardiovascular Sciences, Cardiac Centre, Faculty of Biology, Medicine and Health, University of Manchester and NIHR/Wellcome Trust Clinical Research Facility, Manchester, UK
| | - Alise Kalteniece
- Division of Cardiovascular Sciences, Cardiac Centre, Faculty of Biology, Medicine and Health, University of Manchester and NIHR/Wellcome Trust Clinical Research Facility, Manchester, UK
| | - Saif Ullah Khan
- Division of Cardiovascular Sciences, Cardiac Centre, Faculty of Biology, Medicine and Health, University of Manchester and NIHR/Wellcome Trust Clinical Research Facility, Manchester, UK
| | | | - Georgios Ponirakis
- Weill Cornell Medicine-Qatar, Research Division, Qatar Foundation, Doha, Qatar
| | - Uazman Alam
- Division of Cardiovascular Sciences, Cardiac Centre, Faculty of Biology, Medicine and Health, University of Manchester and NIHR/Wellcome Trust Clinical Research Facility, Manchester, UK
| | - Omar Asghar
- Division of Cardiovascular Sciences, Cardiac Centre, Faculty of Biology, Medicine and Health, University of Manchester and NIHR/Wellcome Trust Clinical Research Facility, Manchester, UK
| | - Andrew Marshall
- Division of Cardiovascular Sciences, Cardiac Centre, Faculty of Biology, Medicine and Health, University of Manchester and NIHR/Wellcome Trust Clinical Research Facility, Manchester, UK
| | - Handrean Soran
- Division of Cardiovascular Sciences, Cardiac Centre, Faculty of Biology, Medicine and Health, University of Manchester and NIHR/Wellcome Trust Clinical Research Facility, Manchester, UK
| | - Andrew J M Boulton
- Division of Cardiovascular Sciences, Cardiac Centre, Faculty of Biology, Medicine and Health, University of Manchester and NIHR/Wellcome Trust Clinical Research Facility, Manchester, UK
| | - Titus Augustine
- Department of Transplant and Endocrine Surgery, Central Manchester University Hospital NHS Foundation Trust, Manchester, UK
| | - Rayaz A Malik
- Division of Cardiovascular Sciences, Cardiac Centre, Faculty of Biology, Medicine and Health, University of Manchester and NIHR/Wellcome Trust Clinical Research Facility, Manchester, UK.,Weill Cornell Medicine-Qatar, Research Division, Qatar Foundation, Doha, Qatar
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10
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Wang X, Jiang R, Su J. Sudden sensorineural hearing loss with end-stage renal disease: a report of 32 cases. Acta Otolaryngol 2019; 139:1004-1007. [PMID: 31486695 DOI: 10.1080/00016489.2019.1659516] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Background: Patients with end-stage renal disease (ESRD) have a higher risk of suffering sudden sensorineural hearing loss (SSNHL), but little is known about this population. Aims and objectives: To investigate the clinical characteristics, treatment and recovery of SSNHL patients with ESRD. Materials and methods: Records of 32 SSNHL patients with ESRD were reviewed, including clinical characteristics and hearing recovery. Patients were divided into intratympanic steroid (ITS) group and oral steroid (OS) group, and hearing recovery was compared between two groups. Results: Twenty-six patients (81.3%) exhibited tinnitus, and 18 patients (56.3%) suffered vertigo. Mean pure-tone threshold at the initial presentation was 73.2 ± 19.4 dB, and the audiogram configuration was ascending in 9.4%, descending in 9.4%, flat in 34.4% and profound in 46.9% cases. At 3-month follow-up, percentages of patients in complete recovery, partial recovery, slight recovery, and no improvement were 18.8%, 31.3%, 21.9% and 28.1%, respectively. Furthermore, the overall recovery rate, complete recovery rate and hearing improvement were significantly higher in the ITS group than those in the OS group. Conclusion: SSNHL patient with ESRD often suffered a severe hearing loss with a high rate of accompanying tinnitus and vertigo. ITS may provide better audiological results for SSNHL with ESRD than OS.
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Affiliation(s)
- Xiangsheng Wang
- Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Xin Jiang Medical University, Urumchi, China
| | - Ruirui Jiang
- Department of Pharmacy, Urumqi Municipal First People’s Hospital, Urumchi, China
| | - Jiang Su
- Department of Otolaryngology-Head and Neck Surgery, The First Affiliated Hospital of Xin Jiang Medical University, Urumchi, China
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11
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Jasti DB, Mallipeddi S, Apparao A, Vengamma B, Sivakumar V, Kolli S. A Clinical and Electrophysiological Study of Peripheral Neuropathies in Predialysis Chronic Kidney Disease Patients and Relation of Severity of Peripheral Neuropathy with Degree of Renal Failure. J Neurosci Rural Pract 2019; 8:516-524. [PMID: 29204008 PMCID: PMC5709871 DOI: 10.4103/jnrp.jnrp_186_17] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Objective: To study the prevalence, clinical features, electrophysiological features, and severity of peripheral neuropathy in predialysis chronic kidney disease (CKD) patients with respect to severity of renal failure and presence of diabetes mellitus. Materials and Methods: Between May 2015 and December 2016, 200 predialysis CKD patients were assessed prospectively. Results: The prevalence of peripheral neuropathy in predialysis CKD patients in the present study was 45% based on clinical symptoms and 90% electrophysiologically. Mean age of 200 predialysis CKD patients who participated in the study was 53.2 ± 13.2 years. One hundred and thirty-six (68%) patients were male and 64 (32%) patients were female. Mean duration of disease was 2.2 ± 1.6 years. Nearly 45% patients of patients had asymptomatic peripheral neuropathy in the present study, which was more common in mild-to-moderate renal failure group. One hundred twenty-six patients (63%) had definite damage and 54 patients (27%) had early damage. In mild-to-moderate renal failure (n = 100) and severe renal failure patients (n = 100), 88% and 92% had significant peripheral neuropathy, respectively. Most common nerves involved were sural nerve, median sensory nerve, and ulnar sensory nerve. Diabetic patients (97%) showed more severe and high prevalence of peripheral neuropathy when compared to nondiabetic patients (83%). Most common patterns were pure axonal sensorimotor neuropathy and mixed sensorimotor neuropathy. Conclusion: Peripheral neuropathy is common in predialysis patients, prevalence and severity of which increases as renal failure worsens. Predialysis patients with diabetes show higher prevalence and severity of peripheral neuropathy when compared with nondiabetics.
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Affiliation(s)
| | | | - A Apparao
- Department of Neurology, SVIMS, Tirupati, Andhra Pradesh, India
| | - B Vengamma
- Department of Neurology, SVIMS, Tirupati, Andhra Pradesh, India
| | - V Sivakumar
- Department of Nephrology, SVIMS, Tirupati, Andhra Pradesh, India
| | - Satyarao Kolli
- Department of Neurology, SVIMS, Tirupati, Andhra Pradesh, India
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12
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Smyth B, Krishnan AV, Gallagher M, Kiernan M, Snelling P, Hawley C, Fernando M, Hand S, Grimley K, Burman J, Heath A, Kang A, Perkovic V, Jardine MJ. Randomised controlled trial of the impact of haemodiafiltration on uraemic neuropathy: FINESSE study protocol. BMJ Open 2019; 9:e023736. [PMID: 30782714 PMCID: PMC6340424 DOI: 10.1136/bmjopen-2018-023736] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION The majority of patients undergoing haemodialysis (HD) show evidence of uraemic neuropathy, a condition with no known disease-modifying treatments. The pathogenesis of uraemic neuropathy is poorly understood, but may be related to cumulative exposure to middle molecules or other solutes such as potassium. It is not known whether haemodiafiltration (HDF) reduces the progression of uraemic neuropathy. METHODS AND ANALYSIS Filtration In the Neuropathy of End-Stage kidney disease Symptom Evolution (FINESSE) is a multicentre, randomised, open-label, blinded endpoint assessment, controlled trial designed to assess the impact of HDF versus HD on uraemic neuropathy. Maintenance HD patients will be randomised in a 1:1 ratio to receive HDF or HD with high-flux membranes for 4 years. The primary endpoint is the difference in the mean change in Total Neuropathy Score (TNS)-a measure of peripheral neuropathy combining symptoms, signs and nerve conduction velocity-over the study period. Secondary outcomes include change at annual timepoints in the TNS and the Neuropathy Symptom Score; and in morbidity, mortality and safety events. ETHICS AND DISSEMINATION The FINESSE trial has been approved by the Ethics Review Committee of the Sydney South West Area Health Service (HREC/09/RPAH/268) and of Adventist HealthCare Limited (2012-027). When published in a peer-reviewed journal, it will be the largest and longest reported randomised trial aimed at reducing the incidence and severity of uraemic neuropathy. It will advance the understanding of the natural history of uraemic neuropathy and the influence of convective therapies on both neurophysiological and clinical outcomes. It will also allow refinement of current hypotheses surrounding the pathogenesis of uraemic neuropathy and, most importantly, may lead to improvements in the lives of the many patients affected by this debilitating condition. TRIAL REGISTRATION NUMBER ACTRN12609000615280.
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Affiliation(s)
- Brendan Smyth
- Renal and Metabolic, The George Institute for Global Health, UNSW, Newtown, New South Wales, Australia
| | - Arun V Krishnan
- Neurology, Prince of Wales Clinical School, UNSW, Sydney, New South Wales, Australia
| | - Martin Gallagher
- Renal and Metabolic, The George Institute for Global Health, UNSW, Newtown, New South Wales, Australia
- Renal Medicine, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
| | - Matthew Kiernan
- Brain and Mind Centre, University of Sydney, Sydney, New South Wales, Australia
| | - Paul Snelling
- Renal Medicine, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - Carmel Hawley
- Renal Medicine, Princess Alexandra Hospital, Brisbane, Queensland, Australia
| | - Mangalee Fernando
- Renal Medicine, Prince of Wales Hospital, Sydney, New South Wales, Australia
| | - Samantha Hand
- Renal Medicine, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
| | - Kim Grimley
- Renal Medicine, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - Jenny Burman
- Renal Medicine, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
| | - Anne Heath
- Renal Medicine, Sydney Adventist Hospital, Sydney, New South Wales, Australia
| | - Amy Kang
- Renal and Metabolic, The George Institute for Global Health, UNSW, Newtown, New South Wales, Australia
| | - Vlado Perkovic
- Renal and Metabolic, The George Institute for Global Health, UNSW, Newtown, New South Wales, Australia
| | - Meg J Jardine
- Renal and Metabolic, The George Institute for Global Health, UNSW, Newtown, New South Wales, Australia
- Renal Medicine, Concord Repatriation General Hospital, Sydney, New South Wales, Australia
- Renal Medicine, Sydney Adventist Hospital, Sydney, New South Wales, Australia
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13
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McCorquodale D, Smith AG. Clinical electrophysiology of axonal polyneuropathies. HANDBOOK OF CLINICAL NEUROLOGY 2019; 161:217-240. [PMID: 31307603 DOI: 10.1016/b978-0-444-64142-7.00051-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Axonal neuropathies encompass a wide range of acquired and inherited disorders with electrophysiologic characteristics that arise from the unique neurophysiology of the axon. Accurate interpretation of nerve conduction studies and electromyography requires an in-depth understanding of the pathophysiology of the axon. Here we review the unique neurophysiologic properties of the axon and how they relate to clinical electrodiagnostic features. We review the length-dependent Wallerian or "dying-back" processes as well as the emerging body of literature from acquired axonal neuropathies that highlights the importance of axonal disease at the nodes of Ranvier. Neurophysiologic features of individual inherited and acquired axonal diseases, including primary nerve disease as well as systemic immune mediated, metabolic, and toxic diseases involving the peripheral nerve, are reviewed. This comprehensive review of electrodiagnostic findings coupled with the current understanding of pathophysiology will aid the clinician in the evaluation of axonal polyneuropathies.
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Affiliation(s)
- Donald McCorquodale
- Department of Neurology, Virginia Commonwealth University, Richmond, VA, United States
| | - A Gordon Smith
- Department of Neurology, Virginia Commonwealth University, Richmond, VA, United States.
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14
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Ezzeldin N, Abdel Galil SM, Said D, Kamal NM, Amer M. Polyneuropathy associated with chronic hemodialysis: Clinical and electrophysiological study. Int J Rheum Dis 2018; 22:826-833. [PMID: 30575307 DOI: 10.1111/1756-185x.13462] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 11/15/2018] [Accepted: 11/26/2018] [Indexed: 11/27/2022]
Abstract
AIM To estimate the frequency and pattern of peripheral polyneuropathy (PNP) that may affect patients maintained on hemodialysis. PATIENTS AND METHODS The study was carried out on 60 middle-aged male patients attending the Internal Medicine Department for maintenance hemodialysis. All were subjected to a complete neurological examination. Motor and sensory nerve conduction studies of both lower limbs (the tibial, peroneal and sural nerves) and both upper limbs (median and ulnar nerves), as well as F-wave measurements of both tibial and median nerves, were done. The patients were subdivided clinically into two groups, clinically apparent neuropathy and inapparent groups. Then they were divided according to the types of peripheral neuropathy detected by electrophysiological studies into axonal, demyelinated and mixed polyneuropathy. In addition, they were divided into motor, sensory and sensorimotor groups. RESULTS Polyneuropathy was found clinically presented in 33 (55%) cases, while evident by electrophysiological examination in 100% of the clinically apparent group (33 patients) and evident in 92.5% of the clinically inapparent group (27 patients). The frequency of pathologic electrophysiological parameters was significantly higher in patients with longer duration of hemodialysis. Axonal polyneuropathy is the most prevalent type in those patients. CONCLUSION Peripheral polyneuropathy is a common presentation in patients maintained on hemodialysis. The longer the duration of hemodialysis, the more liability to develop PNP that can be detected earlier by electrodiagnostic studies in the subclinical cases.
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Affiliation(s)
- Nillie Ezzeldin
- Rheumatology and Rehabilitation Department, Faculty of Medicine, Zagazig University, Egypt
| | - Sahar Mahfouz Abdel Galil
- Rheumatology and Rehabilitation Department, Faculty of Medicine, Zagazig University, Egypt.,Medicine Department, College of Medicine, Umm Alqura University, Makkah, Saudi Arabia
| | - Dina Said
- Rheumatology and Rehabilitation Department, Faculty of Medicine, Zagazig University, Egypt
| | - Nafesa Mohamed Kamal
- Internal Medicine Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Mona Amer
- Neurology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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15
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Issar T, Arnold R, Kwai NC, Pussell BA, Endre ZH, Poynten AM, Kiernan MC, Krishnan AV. The utility of the Total Neuropathy Score as an instrument to assess neuropathy severity in chronic kidney disease: A validation study. Clin Neurophysiol 2018; 129:889-894. [DOI: 10.1016/j.clinph.2018.02.120] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 01/14/2018] [Accepted: 02/04/2018] [Indexed: 10/17/2022]
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16
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Yoganathan S, Bagga A, Gulati S, Toteja GS, Hari P, Sinha A, Pandey RM, Irshad M. Prevalence and predictors of peripheral neuropathy in nondiabetic children with chronic kidney disease. Muscle Nerve 2018; 57:792-798. [PMID: 29193154 DOI: 10.1002/mus.26027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/26/2017] [Indexed: 12/14/2022]
Abstract
INTRODUCTION This study sought to determine the prevalence and predictors of peripheral neuropathy in nondiabetic children with chronic kidney disease (CKD). METHODS Fifty-one consecutive normally nourished children, 3-18 years of age, with CKD stages IV and V of nondiabetic etiology were enrolled from May to December 2012. Nerve conduction studies were performed in 50 children. Blood samples were analyzed for the biochemical parameters, trace elements, and micronutrients. RESULTS The prevalence of peripheral neuropathy in our cohort was 52% (95% confidence interval 37.65, 66.34). The majority (80.8%) of the children had axonal neuropathy, and 11.5% had demyelinating neuropathy. Isolated motor neuropathy was identified in 92.3% of the children, and sensorimotor neuropathy was identified in 7.6%. The significant risk factors associated with peripheral neuropathy were older age, low serum copper, and dialysis therapy. DISCUSSION Electrodiagnostic studies should be performed in children with CKD to assess for peripheral neuropathy for the purpose of optimizing medical care. Muscle Nerve 57: 792-798, 2018.
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Affiliation(s)
- Sangeetha Yoganathan
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Arvind Bagga
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Sheffali Gulati
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - G S Toteja
- Division of Nutrition, Indian Council of Medical Research, Ministry of Health & Family Welfare, Government of India, New Delhi, 110001, India
| | - Pankaj Hari
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Aditi Sinha
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Ravindra Mohan Pandey
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - Mohammad Irshad
- Department of Laboratory Medicine, All India Institute of Medical Sciences, New Delhi, India
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Basturk T, Koc Y, Kayalar AO, Yilmaz F, Hasbal NB, Sakaci T, Ahbap E, Unsal A. Frequency of Polyneuropathy in Patients on Long Term Peritoneal Dialysis Treatment. J Clin Diagn Res 2017; 11:OC37-OC40. [PMID: 28764223 DOI: 10.7860/jcdr/2017/24572.10101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 01/13/2017] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Uremic polyneuropathy is very common among patients with Chronic Kidney Disease (CKD). The patients have electrophysiologic signs of impaired nerve function, although a lower percentage of patients are symptomatic. Electrophysiological parameters are quantitative indices of Polyneuropathy (PNP) severity. AIM To assess the frequency of PNP in patients on long term Peritoneal Dialysis (PD) treatment. MATERIALS AND METHODS Twenty three PD patients were analysed, who were receiving dialysis for at least five years and the study population divided into two groups according to duration of PD treatment. Group 1 consisted of the patients who were dialysed for at least 10 years and Group 2 consisted of patients who were dialysed for five to nine years. Patients who switched from Haemodialysis (HD) to PD and patients with coexisting diseases that could lead to disturbances in nerve conduction were excluded from the study. PNP was diagnosed when slowing of Nerve Conduction Velocity (NCV) and/or lengthening of distal latencies and/or decrease in amplitude of muscle action potential were present in two or more nerves and longer F wave response was present in one or two nerves. Carpal Tunnel Syndrome (CTS) was diagnosed if slowing of NCV and/or decrease in amplitude of muscle action potential and/or lenghening of distal latency of either sensory or motor median nerve present. RESULTS PNP was observed in 17 of the patients {73.9%; Group 1 (n=10) and Group 2 (n=7)}. Mixed type sensory motor neuropathy was diagnosed in nine patients from Group 1 and five patients from Group 2; one patient from Group 1 had demyelinating PNP affecting motor and sensory nerves; one patient from Group 2 had axonal PNP affecting motor and sensory nerves. From Group 1, two patients had CTS related to PNP and one patient had CTS without PNP. The results of motor conductivity testing showed lower conduction velocity for left popliteal nerve in Group 1 and Group 2 patients (13.85±2.17 ms, 4.80±1.11 ms, p=0.01). In both groups, mean motor and sensory latency, amplitude and velocity of other nerves were not found to be significantly different (p>0.05). CONCLUSION PNP is a common complication in long term PD patients. Over five years of treatment, frequency of PNP and CTS do not increase with duration of dialysis.
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Affiliation(s)
- Taner Basturk
- Associate Professor, Department of Nephrology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Yener Koc
- Associate Professor, Department of Nephrology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Aarzu Ozdemir Kayalar
- Fellow, Department of Nephrology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Figen Yilmaz
- Associate Professor, Department of Physical Treatment and Rehabilitation, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Nuri Baris Hasbal
- Fellow, Department of Nephrology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Tamer Sakaci
- Specialist, Department of Nephrology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Elbis Ahbap
- Associate Professor, Department of Nephrology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Abdulkadir Unsal
- Professor, Department of Nephrology, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
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Borire AA, Arnold R, Pussell BA, Kwai NC, Visser LH, Padua L, Simon NG, Kiernan MC, Krishnan AV. Haemodialysis alters peripheral nerve morphology in end-stage kidney disease. Clin Neurophysiol 2017; 128:281-286. [DOI: 10.1016/j.clinph.2016.09.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 09/02/2016] [Accepted: 09/12/2016] [Indexed: 12/30/2022]
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19
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Brkovic T, Burilovic E, Puljak L. Prevalence and severity of pain in adult end-stage renal disease patients on chronic intermittent hemodialysis: a systematic review. Patient Prefer Adherence 2016; 10:1131-50. [PMID: 27382261 PMCID: PMC4922783 DOI: 10.2147/ppa.s103927] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES Understanding the epidemiology of pain in patients on hemodialysis (HD) is crucial for further improvement in managing pain. The aim of this study was to systematically review available evidence on the prevalence and severity of pain in adult end-stage renal disease patients on chronic intermittent HD. MATERIALS AND METHODS We carried out a systematic review of the literature and developed a comprehensive search strategy based on search terms on pain and HD. We searched the databases MEDLINE, Scopus, PsycINFO, and CINAHL from the earliest date of each database to July 24, 2014. Manuscripts in all languages were taken into consideration. Two authors performed each step independently, and all disagreements were resolved after discussion with the third author. The quality of studies was estimated using the STROBE checklist and Cochrane risk-of-bias tool. RESULTS We included 52 studies with 6,917 participants. The prevalence of acute and chronic pain in HD patients was up to 82% and 92%, respectively. A considerable number of patients suffered from severe pain. Various locations and causes of pain were described, with most of the studies reporting pain in general, pain related to arteriovenous access, headache, and musculoskeletal pain. CONCLUSION The findings of this systematic review indicate high prevalence of pain in HD patients and considerable gaps and limitations in the available evidence. Pain in this population should be recognized as a considerable health concern, and the nephrology community should promote pain management in HD patients as a clinical and research priority to improve patients' quality of life and pain-related disability.
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Affiliation(s)
- Tonci Brkovic
- Department of Internal Medicine, Division of Nephrology
| | | | - Livia Puljak
- Department of Anatomy, Histology and Embryology, Laboratory for Pain Research, University of Split School of Medicine, Split, Croatia
- Correspondence: Livia Puljak, Laboratory for Pain Research, University of Split School of Medicine, Šoltanska 2, 21000 Split, Croatia, Tel +385 21 557 807, Fax +385 21 557 811, Email
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Denislic M, Tiric-Campara M, Resić H, Al-Hashel JY, Zorec R, Gojak R, Ravnik J. A neurophysiological study of large- and small-diameter nerve fibers in the hands of hemodialysis patients. Int Urol Nephrol 2015; 47:1879-87. [DOI: 10.1007/s11255-015-1117-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 09/18/2015] [Indexed: 10/23/2022]
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21
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Tsai HT, Hsueh N, Huang CM, Lin HC. Intratympanic steroid injection as a first-line therapy in uremia patients with sudden sensorineural hearing loss. Acta Otolaryngol 2015; 135:786-90. [PMID: 25783847 DOI: 10.3109/00016489.2015.1027413] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONCLUSIONS ITSI as a first-line therapy in uremia patients with SSNHL offers a valid and safe treatment compared with intravenous systemic steroid treatment. A specific pathophysiology caused by possible sodium pump paralysis may be explained for uremia patients with SSNHL. OBJECTIVE To compare the efficacy of intratympanic steroid injection (ITSI) with that of systemic intravenous steroids as a first-line therapy in uremia patients with sudden sensorineural hearing loss (SSNHL). MATERIALS AND METHODS A total of 23 consecutive uremia patients with SSNHL were enrolled in this study. Patients were divided into two groups: the ITSI group (n = 15) and the non-ITSI group (n = 8), in which patients received intravenous systemic steroid treatment. The two groups were homogeneous in all respects. RESULTS The hearing improvement and relative gain were statistically significant between the two groups. The value of hearing gain (ΔPTA = PTA pre - PTA post) in the ITSI group and the non-ITSI group was 24.6 ± 16.4dB and 8.4 ± 19.3dB. The value of relative gain (ΔPTA/PTApre) in the ITIS group and the non-ITSI group was 31.1 ± 22% and 9.4 ± 20.5%. In the ITSI group, 11 patients (73.3%) exhibited hearing recovery (ΔPTA > 10 dB).
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MESH Headings
- Aged
- Audiometry, Pure-Tone
- Dexamethasone
- Dose-Response Relationship, Drug
- Female
- Follow-Up Studies
- Glucocorticoids/administration & dosage
- Hearing/physiology
- Hearing Loss, Sensorineural/drug therapy
- Hearing Loss, Sensorineural/etiology
- Hearing Loss, Sensorineural/physiopathology
- Hearing Loss, Sudden/drug therapy
- Hearing Loss, Sudden/etiology
- Hearing Loss, Sudden/physiopathology
- Humans
- Injection, Intratympanic
- Injections, Intravenous
- Male
- Middle Aged
- Retrospective Studies
- Treatment Outcome
- Uremia/complications
- Uremia/drug therapy
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Affiliation(s)
- Hsun-Tien Tsai
- Department of Otolaryngology, Mackay Memorial Hospital , Taipei , Taiwan
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Erdem Tilki H, Coşkun M, Unal Akdemir N, Incesu L. Axon count and sympathetic skin responses in lumbosacral radiculopathy. J Clin Neurol 2014; 10:10-6. [PMID: 24465257 PMCID: PMC3896643 DOI: 10.3988/jcn.2014.10.1.10] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 07/02/2013] [Accepted: 07/02/2013] [Indexed: 02/04/2023] Open
Abstract
Background and Purpose Electrodiagnostic studies can be used to confirm the diagnosis of lumbosacral radiculopathies, but more sensitive diagnostic methods are often needed to measure the ensuing motor neuronal loss and sympathetic failure. Methods Twenty-six patients with lumbar radiculopathy and 30 controls were investigated using nerve conduction studies, motor unit number estimation (MUNE), testing of the sympathetic skin response (SSR), quantitative electromyography (QEMG), and magnetic resonance myelography (MRM). Results Using QEMG as the gold standard, the sensitivity and specificity of MUNE for the abductor hallucis longus muscle were 71.4% and 70%, respectively. While they were 75% and 68.8%, respectively, when used MRM as gold standard. The sensitivity and specificity of MUNE for the extensor digitorum brevis muscle were 100% and 84.1%, respectively, when the peroneal motor amplitude as the gold standard. The SSR latency was slightly longer in the patients than in the controls. Conclusions MUNE is a simple and sensitive test for evaluating autonomic function and for diagnosing lumbosacral radiculopathy in patients. MUNE could be used routinely as a guide for the rehabilitation of patients with radiculopathies. SSR measurements may reveal subtle sympathetic abnormalities in patients with lumbosacral radiculopathy.
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Affiliation(s)
| | - Melek Coşkun
- Department of Public Health, Ondokuz Mayıs University, Samsun, Turkey
| | | | - Lütfi Incesu
- Department of Radiodiagnostics, Ondokuz Mayıs University, Samsun, Turkey
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Bansal VK, Bansal S. Nervous system disorders in dialysis patients. HANDBOOK OF CLINICAL NEUROLOGY 2014; 119:395-404. [DOI: 10.1016/b978-0-7020-4086-3.00025-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Arnold R, Kwai NC, Krishnan AV. Mechanisms of axonal dysfunction in diabetic and uraemic neuropathies. Clin Neurophysiol 2013; 124:2079-90. [DOI: 10.1016/j.clinph.2013.04.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Revised: 04/12/2013] [Accepted: 04/13/2013] [Indexed: 12/13/2022]
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25
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Arnold R, Pussell BA, Pianta TJ, Lin CSY, Kiernan MC, Krishnan AV. Association between calcineurin inhibitor treatment and peripheral nerve dysfunction in renal transplant recipients. Am J Transplant 2013; 13:2426-32. [PMID: 23841745 DOI: 10.1111/ajt.12324] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 05/03/2013] [Accepted: 05/13/2013] [Indexed: 01/25/2023]
Abstract
Neurotoxicity is a significant clinical side effect of immunosuppressive treatment used in prophylaxis for rejection in solid organ transplants. This study aimed to provide insights into the mechanisms underlying neurotoxicity in patients receiving immunosuppressive treatment following renal transplantation. Clinical and neurophysiological assessments were undertaken in 38 patients receiving immunosuppression following renal transplantation, 19 receiving calcineurin inhibitor (CNI) therapy and 19 receiving a calcineurin-free (CNI-free) regimen. Groups were matched for age, gender, time since transplant and renal function and compared to normal controls (n = 20). The CNI group demonstrated marked differences in nerve excitability parameters, suggestive of nerve membrane depolarization (p < 0.05). Importantly, there were no differences between the two CNIs (cyclosporine A or tacrolimus). In contrast, CNI-free patients showed no differences to normal controls. The CNI-treated patients had a higher prevalence of clinical neuropathy and higher neuropathy severity scores. Longitudinal studies were undertaken in a cohort of subjects within 12 months of transplantation (n = 10). These studies demonstrated persistence of abnormalities in patients maintained on CNI-treatment and improvement noted in those who were switched to a CNI-free regimen. The results of this study have significant implications for selection, or continuation, of immunosuppressive therapy in renal transplant recipients, especially those with pre-existing neurological disability.
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Affiliation(s)
- R Arnold
- School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
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Aggarwal HK, Sood S, Jain D, Kaverappa V, Yadav S. Evaluation of spectrum of peripheral neuropathy in predialysis patients with chronic kidney disease. Ren Fail 2013; 35:1323-9. [PMID: 23964701 DOI: 10.3109/0886022x.2013.828261] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION Neurological complications secondary to the uremic state, contribute largely to the morbidity and mortality in patients with renal failure. The prevalence of peripheral neuropathy remains high in advanced renal dysfunction. MATERIALS AND METHODS The present cross-sectional study was conducted on 100 adult patients of chronic kidney disease between 18 and 75 years of age with serum creatinine greater than 2 mg/dL. Apart from routine examination and baseline investigations, detailed history was elicited pertaining to patients' neurological symptoms, and scored according to the Neurological Symptom Score. Motor nerve conduction velocity was measured from right median, ulnar, peroneal, and tibial nerves. RESULTS It was observed that neurological symptoms increased steadily with raise in serum creatinine. The mean nerve conduction velocities (NCVs) of right median nerve, ulnar nerve, peroneal nerve, and tibial nerve were 51.34 ± 6.07, 53.04 ± 5.91, 44.72 ± 6.14, and 44.20 ± 5.17, respectively. The NCVs of all the tested nerves decreased significantly with increase in serum creatinine levels (p < 0.01): 70% of the patients had uremic polyneuropathy; 6% had asymptomatic neuropathy, 51% had symptomatic non-disabling neuropathy, while disabling neuropathy was seen in 13% of the patients. CONCLUSION Our data suggests that NCV testing when complimented with meticulous neurological assessment can provide invaluable input. These tests apart from helping us detect neuropathy in advanced renal dysfunction; can also detect the disease in largely asymptomatic patients which avoids the necessity to order for detailed neurophysiological investigation.
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Affiliation(s)
- Hari K Aggarwal
- Department of Medicine, Pt. B.D. Sharma University of Health Sciences, Rohtak , Haryana , India and
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Arnold R, Pussell BA, Pianta TJ, Grinius V, Lin CSY, Kiernan MC, Howells J, Jardine MJ, Krishnan AV. Effects of hemodiafiltration and high flux hemodialysis on nerve excitability in end-stage kidney disease. PLoS One 2013; 8:e59055. [PMID: 23536855 PMCID: PMC3594160 DOI: 10.1371/journal.pone.0059055] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Accepted: 02/11/2013] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES Peripheral neuropathy is the most common neurological complication in end-stage kidney disease. While high flux hemodialysis (HFHD) and hemodiafiltration (HDF) have become the preferred options for extracorporeal dialysis therapy, the effects of these treatments on nerve excitability have not yet been examined. METHODS An observational proof-of-concept study of nerve excitability and neuropathy was undertaken in an incident dialysis population (n = 17) receiving either HFHD or HDF. Nerve excitability techniques were utilised to assess nerve ion channel function and membrane potential, in conjunction with clinical assessment and standard nerve conduction studies. A mathematical model of axonal excitability was used to investigate the underlying basis of the observed changes. Nerve excitability was recorded from the median nerve, before, during and after a single dialysis session and correlated with corresponding biochemical markers. Differences in nerve excitability were compared to normal controls with longitudinal follow-up over an 18 month period. RESULTS Nerve excitability was performed in patient cohorts treated with either HFHD (n = 9) or online HDF (n = 8), with similar neuropathy status. Nerve excitability measures in HDF-treated patients were significantly closer to normal values compared to HFHD patients obtained over the course of a dialysis session (p<0.05). Longitudinal studies revealed stability of nerve excitability findings, and thus maintenance of improved nerve function in the HDF group. CONCLUSIONS This study has provided evidence that nerve excitability in HDF-treated patients is significantly closer to normal values prior to dialysis, across a single dialysis session and at longitudinal follow-up. These findings offer promise for the management of neuropathy in ESKD and should be confirmed in randomised trials.
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Affiliation(s)
- Ria Arnold
- Translational Neuroscience Facility, University of New South Wales, Sydney, New South Wales, Australia
| | - Bruce A. Pussell
- Department of Nephrology Prince of Wales Hospital, Sydney, New South Wales, Australia
- Prince of Wales Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Timothy J. Pianta
- Department of Nephrology Prince of Wales Hospital, Sydney, New South Wales, Australia
- Prince of Wales Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Virginija Grinius
- Department of Nephrology Prince of Wales Hospital, Sydney, New South Wales, Australia
| | - Cindy S-Y. Lin
- Translational Neuroscience Facility, University of New South Wales, Sydney, New South Wales, Australia
| | - Matthew C. Kiernan
- Prince of Wales Clinical School, University of New South Wales, Sydney, New South Wales, Australia
- Neuroscience Research Australia, Sydney, New South Wales, Australia
| | - James Howells
- The University of Sydney and Institute of Clinical Neurosciences, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - Meg J. Jardine
- Department of Nephrology Concord Repatriation General Hospital and The George Institute for Global Health, Sydney, New South Wales, Australia
| | - Arun V. Krishnan
- Translational Neuroscience Facility, University of New South Wales, Sydney, New South Wales, Australia
- * E-mail:
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Abstract
Polyneuropathy is a common complication of end-stage renal failure especially when treatment with periodic hemodialysis is started too late. Large myelinated fibers bear the brunt of the many biological changes associated with renal failure. Nerve conduction slowing is common in this setting. Compression of the median nerve in the carpal tunnel commonly occurs in these patients, as a result of amyloid deposits at this site. End-stage renal failure in diabetic patients is often associated with severe distal motor and sensory deficits. Improved quality of periodic hemodialysis and renal transplantation have dramatically reduced the prevalence and severity of peripheral neuropathy in these patients.
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Affiliation(s)
- Gérard Said
- Department of Neurology, Hôpital de la Salpêtrière, Paris, France.
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29
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Wei M, Zhu J, Wang N, Xue Q, Liu F, Hu B, Fang J, Zhang Y. Preliminary study of sural nerve morphological changes in uremic hemodialysis patients using 22-MHz high-frequency ultrasound. Muscle Nerve 2012; 46:937-42. [DOI: 10.1002/mus.23418] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2012] [Indexed: 11/10/2022]
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Kielstein JT, Suntharalingam M, Perthel R, Rong S, Martens-Lobenhoffer J, Jäger K, Bode-Böger SM, Nave H. Asymmetric dimethylarginine may mediate increased heat pain threshold in experimental chronic kidney disease. Nephrol Dial Transplant 2011; 27:899-902. [PMID: 22131232 DOI: 10.1093/ndt/gfr629] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Thermal sensitivity in uraemia is decreased. Non-selective synthetic nitric oxide synthase (NOS) inhibitors significantly attenuate thermal hyperalgesia in preclinical models. The aim of our study was to evaluate the effect of experimental uraemia, which is associated with an increase of the endogenous NOS inhibitor asymmetric dimethylarginine (ADMA), on thermal sensitivity in rats. Furthermore, we intended to study the effect of chronic ADMA infusion alone on thermal sensitivity. METHODS Male Sprague-Dawley rats (n = 54), 10 weeks old, weight 370-430 g, were randomly assigned to three groups receiving either (i) isotonic saline or (ii) ADMA via osmotic mini pumps or (iii) underwent 5/6 nephrectomy (Nx). After 14 days, 50% of all animals from all groups underwent thermal sensitivity testing and terminal blood draw. After 28 days, the remaining animals underwent the same procedures. Thermal sensitivity examination was performed by the hot-plate test, measuring time from heat exposition to first paw licking or jumping of the animal. RESULTS While the median [interquartile range] latency time between heat exposition to first paw licking or jumping of the animal in the NaCl infusion group remained unchanged between Day 14 (8.4 [6.75-11.50] s) and Day 28 (7.35 [6.10-7.90] s) both, ADMA infusion and 5/6 nephrectomy tended to increase the thermal pain threshold at Day 14 (9.25 [6.55-12.18] s) and (9.50 [5.8 ± 11.0] s), respectively, compared to NaCl on Day 14 (8.4 [6.75-11.50] s). This difference became statistical significant at Day 28 where the median latency time in the ADMA group (13.10 [11.85-15.95] s) and in the 5/6 Nx group (13.50 [10.85-17.55] s) were significantly higher than in the NaCl group (7.35 [6.10-7.90] s). CONCLUSIONS Induction of progressive renal failure in rats by 5/6 nephrectomy, which is accompanied by a marked increase of the serum levels of the endogenous NOS inhibitor ADMA, leads to a significantly increased heat pain threshold at 28 days. The sole infusion of ADMA into healthy rats leads to the same increase in heat pain threshold.
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Affiliation(s)
- Jan T Kielstein
- Department of Internal Medicine, Division of Nephrology and Hypertension, Medical School Hannover, Hannover, Germany.
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Deger SM, Reis KA, Guz G, Bali M, Erten Y. A Case of an Accelerated Uremic Neuropathy. Ren Fail 2011; 33:371-2. [DOI: 10.3109/0886022x.2011.559677] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
Chronic kidney disease (CKD) is a critical and rapidly growing global health problem. Neurological complications occur in almost all patients with severe CKD, potentially affecting all levels of the nervous system, from the CNS through to the PNS. Cognitive impairment, manifesting typically as a vascular dementia, develops in a considerable proportion of patients on dialysis, and improves with renal transplantation. Patients on dialysis are generally weaker, less active and have reduced exercise capacity compared with healthy individuals. Peripheral neuropathy manifests in almost all such patients, leading to weakness and disability. Better dialysis strategies and dietary modification could improve outcomes of transplantation if implemented before surgery. For patients with autonomic neuropathy, specific treatments, including sildenafil for impotence and midodrine for intradialytic hypotension, are effective and well tolerated. Exercise training programs and carnitine supplementation might be beneficial for neuromuscular complications, and restless legs syndrome in CKD responds to dopaminergic agonists and levodopa treatment. The present Review dissects the pathophysiology of neurological complications related to CKD and highlights the spectrum of therapies currently available.
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Affiliation(s)
- Arun V Krishnan
- Translational Neuroscience Facility, School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia.
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Krishnan AV, Pussell BA, Kiernan MC. Neuromuscular disease in the dialysis patient: an update for the nephrologist. Semin Dial 2009; 22:267-78. [PMID: 19386072 DOI: 10.1111/j.1525-139x.2008.00555.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Neuromuscular disease is an extremely common complication of end-stage kidney disease (ESKD), manifesting in almost all dialysis patients, and leading to weakness, reduced exercise capacity, and disability. Recent studies have suggested that hyperkalemia may underlie the development of neuropathy. As such, maintenance of serum K(+) within normal limits between periods of dialysis in ESKD patients manifesting early neuropathic symptoms may reduce neuropathy development and progression. For patients with more severe neuropathic syndromes, increased dialysis frequency or a switch to high-flux dialysis may prevent further deterioration, while ultimately, renal transplantation is required to improve and restore nerve function. Exercise training programs are beneficial for ESKD patients with muscle weakness due to neuropathy or myopathy, and are capable of improving exercise tolerance and quality of life. Specific treatments have recently been evaluated for symptoms of autonomic neuropathy, including sildenafil for impotence and midodrine for intra-dialytic hypotension, and have been shown to be effective and well tolerated. Other important management strategies for neuropathy include attention to foot care to prevent callus and ulceration, vitamin supplementation, and erythropoietin. Treatment with membrane-stabilizing agents, such as amitryptiline and gabapentin, are highly effective in patients with painful neuropathy.
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Affiliation(s)
- Arun V Krishnan
- Prince of Wales Medical Research Institute, Barker Street, Randwick, Sydney, NSW 2031, Australia
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Jovanovic DB, Matanovic DD, Simic-Ogrizovic SP, Stosovic MD, Bontic AC, Nesic VD. Polyneuropathy in Diabetic and Nondiabetic Patients on Capd: Is There an Association with HRQOL? Perit Dial Int 2009. [DOI: 10.1177/089686080902900114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background It is well known that patients with uremia, as well as patients with diabetes mellitus, develop polyneuropathy. Objectives The signs of polyneuropathy in diabetic and nondiabetic patients on continuous ambulatory peritoneal dialysis (CAPD) and their relation with age, duration of dialysis, biochemical parameters, dialysis adequacy, and health-related quality of life (HRQOL) were analyzed in the present study. Patients and Methods 65 CAPD patients (37 men, age 29 – 85 years, duration on dialysis 3 months to 14 years) were divided into two groups: group 1 was comprised of 20 diabetic patients (mean age 50.1 ± 13.2 years); group 2 was comprised of 45 nondiabetic patients (mean age 62.3 ± 9.7 years). Biochemical parameters, dialysis adequacy, and clinical signs were determined. Motor conduction velocity on the peroneal and tibial nerves and sensitive conduction velocity on the sural nerve were measured. The Kidney Disease Quality of Life Short Form (KDQOL-SF) was used to measure the CAPD patients’ self-assessment of functioning and well-being using 4 component scores: physical component summary (PCS), mental component summary (MCS), kidney disease target issues, and patient satisfaction. Results Subjective symptoms were more intense in the diabetic patients and correlated with changes in peroneal and tibial distal motor latency (DML). Diabetic patients were significantly younger, had lower creatinine and higher glucose levels, and all analyzed pathological neurophysiological parameters were higher. Nondiabetic patients had prolonged latency of the F-wave on the peroneal nerve and the tibial nerve and reduced sensitive conduction velocity on the sural nerve. Significant correlations were found between the analyzed neurophysiological parameters and duration of dialysis and diabetes, glucose concentration, and dialysis adequacy in diabetic patients, and between neurophysiological parameters and age and dialysis adequacy in nondiabetic patients. Analysis of the 4 component scores of the KDQOL-SF revealed that diabetic patients had significantly better scores for PCS and MCS, which can be explained by their younger age. Patient satisfaction was worse in diabetic patients and correlated with duration of diabetes. In addition, significant correlations were established between PCS, MCS, and tibial DML (late neuropathic changes) in diabetic patients, and between MCS and tibial F-wave (early neuropathic changes) in nondiabetic patients. Conclusion Polyneuropathy was significantly worse in diabetic than in nondiabetic patients on CAPD. DML on the tibial nerve correlated with glucose concentration, dialysis adequacy, PCS, and MCS in diabetic patients, whereas in nondiabetic patients, dialysis adequacy and azotemia correlated with F-waves on the peroneal nerve and the tibial nerve but MCS only with F-wave on the tibial nerve.
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Affiliation(s)
- Dijana B. Jovanovic
- Institute of Urology and Nephrology, Clinical Center of Serbia, Belgrade, Serbia
| | - Dragana D. Matanovic
- Institute of Physical Medicine and Rehabilitation, Clinical Center of Serbia, Belgrade, Serbia
| | | | - Milan D. Stosovic
- Institute of Urology and Nephrology, Clinical Center of Serbia, Belgrade, Serbia
| | - Ana C. Bontic
- Institute of Urology and Nephrology, Clinical Center of Serbia, Belgrade, Serbia
| | - Vidosava D. Nesic
- Institute of Urology and Nephrology, Clinical Center of Serbia, Belgrade, Serbia
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35
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Laaksonen SM, Röyttä M, Jääskeläinen SK, Kantola I, Penttinen M, Falck B. Neuropathic symptoms and findings in women with Fabry disease. Clin Neurophysiol 2008; 119:1365-72. [DOI: 10.1016/j.clinph.2008.02.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2007] [Revised: 01/24/2008] [Accepted: 02/03/2008] [Indexed: 01/01/2023]
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36
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Krishnan AV, Lin CSY, Park SB, Kiernan MC. Assessment of nerve excitability in toxic and metabolic neuropathies. J Peripher Nerv Syst 2008; 13:7-26. [DOI: 10.1111/j.1529-8027.2008.00155.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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37
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Tilki HE, Akpolat T, Coşkun M, Stålberg E. Clinical and electrophysiologic findings in dialysis patients. J Electromyogr Kinesiol 2007; 19:500-8. [PMID: 18155923 DOI: 10.1016/j.jelekin.2007.10.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2007] [Revised: 10/28/2007] [Accepted: 10/29/2007] [Indexed: 11/28/2022] Open
Abstract
The aim of this study was to quantitatively determine the electrophysiologic changes occurring in the peripheral nerves and muscles in patients with chronic renal failure (CRF) treated with haemodialysis (HD) or continuous ambulatory peritoneal dialysis (CAPD), and to determine which electrophysiologic parameters are most commonly abnormal in uraemic patients. We investigated the relationship between the parameters of neurography and quantitative electromyography (QEMG) and clinical findings. The study included 42 patients with CRF (30 on HD and 12 on CAPD). Nerve conduction studies (NCSs) of the median, ulnar, tibial, peroneal, and sural nerves, and QEMG of the tibialis anterior and biceps brachii muscles were performed. We found axonal and/or demyelinating polyneuropathies in 97.6% of the patients (100% of HD and 91.7% of CAPD patients), but were not able to verify any significant differences between the HD and CAPD patients using NCS or QEMG. Median, ulnar, sural sensory nerve action potential (SNAP) amplitudes, peroneal CV and F-latency were the most common abnormal parameters in sensory and motor NCSs, respectively. The clinical findings only correlated with the parameters of neurography, and not with the parameters of QEMG. Sural SNAP amplitudes, peroneal and tibial CVs, F-latencies also correlated with the severity of the clinical findings in these patients, suggesting that these parameters can be used in follow up studies in these patients. In this study, most of the uraemic patients were found to have already mild or moderate neuropathies in which the objective clinical signs might be absent, even if they have some clinical symptoms. NCS showed abnormality indicating polyneuropathy in 24 out of 25 patients with clinical neuropathy signs and in 17 out of 17 patients with no clinical signs. Thus, in subclinical conditions NCS is useful to detect the abnormalities in peripheral nerves of the ureamic patients under chronic dialysis.
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38
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Abstract
BACKGROUND Uremia may be associated with various neurologic manifestations, particularly a polyneuropathy, but also with focal neuropathies such as carpal tunnel syndrome and shunt-related neuropathies. Myopathies can also be caused by uremia and its metabolic disarrangements. REVIEW SUMMARY This article reviews the clinical presentation, pathogenesis, and treatment of uremic polyneuropathy, focal neuropathies, and uremic myopathies. CONCLUSION Recognizing the presentation and pathogenesis of uremic polyneuropathies, mononeuropathies, and myopathies are important for their prevention and for proper management.
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Affiliation(s)
- Kefah Al-Hayk
- Department of Neurology, College of Medicine, University of Tennessee, Memphis, Tennessee, USA
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39
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Krishnan AV, Kiernan MC. Uremic neuropathy: clinical features and new pathophysiological insights. Muscle Nerve 2007; 35:273-90. [PMID: 17195171 DOI: 10.1002/mus.20713] [Citation(s) in RCA: 115] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Neuropathy is a common complication of end-stage kidney disease (ESKD), typically presenting as a distal symmetrical process with greater lower-limb than upper-limb involvement. The condition is of insidious onset, progressing over months. and has been estimated to be present in 60%-100% of patients on dialysis. Neuropathy generally only develops at glomerular filtration rates of less than 12 ml/min. The most frequent clinical features reflect large-fiber involvement, with paresthesias, reduction in deep tendon reflexes, impaired vibration sense, muscle wasting, and weakness. Nerve conduction studies demonstrate findings consistent with a generalized neuropathy of the axonal type. Patients may also develop autonomic features, with postural hypotension, impaired sweating, diarrhea, constipation, or impotence. The development of uremic neuropathy has been related previously to the retention of neurotoxic molecules in the middle molecular range, although this hypothesis lacked formal proof. Studies utilizing novel axonal excitability techniques have recently shed further light on the pathophysiology of this condition. Nerves of uremic patients have been shown to exist in a chronically depolarized state prior to dialysis, with subsequent improvement and normalization of resting membrane potential after dialysis. The degree of depolarization correlates with serum K(+), suggesting that chronic hyperkalemic depolarization plays an important role in the development of nerve dysfunction in ESKD. These recent findings suggest that maintenance of serum K(+) within normal limits between periods of dialysis, rather than simple avoidance of hyperkalemia, is likely to reduce the incidence and severity of uremic neuropathy.
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Affiliation(s)
- Arun V Krishnan
- Prince of Wales Medical Research Institute and Prince of Wales Clinical School, University of New South Wales, Barker Street, Randwick, Sydney, NSW 2031, Australia
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40
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Krishnan AV, Phoon RKS, Pussell BA, Charlesworth JA, Bostock H, Kiernan MC. Altered motor nerve excitability in end-stage kidney disease. Brain 2005; 128:2164-74. [PMID: 15947058 DOI: 10.1093/brain/awh558] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Although multiple toxins have been implicated in the development of uraemic neuropathy, no causative agent has been identified. In the present study, the excitability properties of lower limb motor nerves in patients with end-stage kidney disease treated with haemodialysis were measured before, during and after a standard 5 h haemodialysis session, in an attempt to explore the pathophysiology of uraemic neuropathy. Compound muscle action potentials were recorded from tibialis anterior and extensor digitorum brevis, following stimulation of the common peroneal nerve in 14 patients. Measures of excitability were assessed in relation to changes in serum levels of potential neurotoxins, including potassium, calcium, urea, uric acid, parathyroid hormone and beta-2-microglobulin. Before dialysis, measures of nerve excitability were significantly abnormal in the patient group for axons innervating tibialis anterior and extensor digitorum brevis, consistent with axonal depolarization: refractoriness was increased and superexcitability and depolarizing threshold electrotonus were reduced. Pre-dialysis excitability abnormalities were strongly correlated with serum K+. Correlation was also noted between the severity of symptoms and excitability abnormalities. Haemodialysis normalized the majority of nerve excitability parameters. In conclusion, lower limb motor axons in uraemic patients are depolarized before dialysis. The correlation between serum K+ and excitability measures indicates that hyperkalaemia is primarily responsible for uraemic depolarization, and a likely contributing factor to the development of neuropathy.
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Affiliation(s)
- Arun V Krishnan
- Institute of Neurological Sciences, Prince of Wales Hospital, Randwick, Sydney, Australia
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Kushnir M, Klein C, Kimiagar Y, Pollak L, Rabey JM. Medial dorsal superficial peroneal nerve studies in patients with polyneuropathy and normal sural responses. Muscle Nerve 2005; 31:386-9. [PMID: 15508123 DOI: 10.1002/mus.20183] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
We studied medial dorsal superficial peroneal (MDSP) nerves in 52 patients with clinical evidence of mild chronic sensorimotor polyneuropathy and normal sural nerve responses, in order to assess the diagnostic sensitivity and usefulness of MDSP nerve testing in electrodiagnostic practice. To determine the effect of age on MDSP nerve parameters, 98 normal subjects were also examined. Electrodiagnostic evaluation involved studies of motor nerve conduction in tibial, peroneal, and median nerves; sensory nerve conduction in sural, MDSP, median, and radial nerves; tibial and peroneal nerve F waves; H reflexes from the soleus muscles; and needle electromyography of gastrocnemius and abductor hallucis muscles. Among the patients, 49% had low-amplitude sensory responses in MDSP nerves and 57% had either slowing of sensory conduction velocity or no sensory responses on proximal stimulation. MDSP nerve amplitude, tibial nerve motor velocity, and H reflexes were the most sensitive for detection of mild chronic symmetrical axonal sensorimotor polyneuropathy. MDSP nerve testing should be included in the routine electrodiagnostic evaluation of patients with suspected polyneuropathy and normal sural nerve responses.
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Affiliation(s)
- Mark Kushnir
- Department of Neurology, Assaf Harofeh Medical Center, Zerifin 70300, Israel.
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Brouns R, De Deyn PP. Neurological complications in renal failure: a review. Clin Neurol Neurosurg 2005; 107:1-16. [PMID: 15567546 DOI: 10.1016/j.clineuro.2004.07.012] [Citation(s) in RCA: 237] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2004] [Revised: 07/27/2004] [Accepted: 07/27/2004] [Indexed: 02/08/2023]
Abstract
Neurological complications whether due to the uremic state or its treatment, contribute largely to the morbidity and mortality in patients with renal failure. Despite continuous therapeutic advances, many neurological complications of uremia, like uremic encephalopathy, atherosclerosis, neuropathy and myopathy fail to fully respond to dialysis. Moreover, dialytic therapy or kidney transplantation may even induce neurological complications. Dialysis can directly or indirectly be associated with dialysis dementia, dysequilibrium syndrome, aggravation of atherosclerosis, cerebrovascular accidents due to ultrafiltration-related arterial hypotension, hypertensive encephalopathy, Wernicke's encephalopathy, hemorrhagic stroke, subdural hematoma, osmotic myelinolysis, opportunistic infections, intracranial hypertension and mononeuropathy. Renal transplantation itself can give rise to acute femoral neuropathy, rejection encephalopathy and neuropathy in graft versus host disease. The use of immunosuppressive drugs after renal transplantation can cause encephalopathy, movement disorders, opportunistic infections, neoplasms, myopathy and progression of atherosclerosis. We address the clinical, pathophysiological and therapeutical aspects of both central and peripheral nervous system complications in uremia.
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Affiliation(s)
- R Brouns
- Department of Neurology and Memory Clinic, Middelheim General Hospital, Antwerp, Belgium
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43
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Krishnan AV, Goldstein D, Friedlander M, Kiernan MC. Oxaliplatin-induced neurotoxicity and the development of neuropathy. Muscle Nerve 2005; 32:51-60. [PMID: 15880395 DOI: 10.1002/mus.20340] [Citation(s) in RCA: 165] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The pathophysiology of oxaliplatin-induced neurotoxicity remains unclear, although in vitro studies suggest involvement of voltage-gated Na+ channels. In the present study, clinical assessment was combined with nerve conduction studies (NCS) and nerve excitability studies in 16 patients after completion of oxaliplatin therapy. Chronic neuropathic symptoms persisted in 50% of patients. NCS confirmed abnormalities in symptomatic patients: sensory potentials were significantly low, whereas motor studies remained essentially normal. At 12-month follow-up of symptomatic patients, positive sensory symptoms improved but NCS abnormalities persisted. Cumulative oxaliplatin dose was a predictor of neuropathy, and long-term effects appeared to be minimized by low single-infusion dosages. Nerve excitability measures in symptomatic patients established that axons were of high threshold. Refractoriness was significantly greater in patients (symptomatic group, 56.3 +/- 24.9%; entire patient group, 46.3 +/- 12.5%; controls, 27.1 +/- 1.9%; P < 0.05). Thus, although positive sensory symptoms of oxaliplatin-induced neuropathy improved, negative sensory symptoms and abnormalities of sensory nerve conduction persisted. Differences in nerve excitability measures, particularly refractoriness, support in vitro studies indicating involvement of voltage-gated transient Na+-channel dysfunction in the development of oxaliplatin-induced neurotoxicity.
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Affiliation(s)
- Arun V Krishnan
- Institute of Neurological Sciences, Prince of Wales Hospital, Sydney, NSW, Australia
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Krishnan AV, Lin CSY, Kiernan MC. Nerve excitability properties in lower-limb motor axons: Evidence for a length-dependent gradient. Muscle Nerve 2004; 29:645-55. [PMID: 15116367 DOI: 10.1002/mus.20013] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In this study, nerve excitability protocols were adapted for lower-limb recordings in 25 healthy subjects to enable comparison of excitability parameters between proximal and distal recording sites of the same nerve and between different nerves. Excitability parameters (stimulus-response curves, strength-duration properties, threshold electrotonus, a current-threshold relationship, and the recovery cycle) were recorded from tibialis anterior, extensor digitorum brevis, and abductor hallucis. Excitability recordings were technically possible from each site, and normative values were established for lower-limb nerves. In this process, inter- and intranerve differences in excitability properties were demonstrated: stimulus intensity and rheobase were reduced in recordings from proximal sites; the relative refractory period and late subexcitability were increased; superexcitability was reduced; and a relative "fanning-in" occurred for threshold electrotonus curves recorded from proximal sites. Such a length-dependent gradient in nerve excitability may underlie the greater tendency for ectopic activity to arise from the proximal segments of motor axons and may contribute to the length-dependent involvement of motor axons in the development of peripheral neuropathy.
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Affiliation(s)
- Arun V Krishnan
- Institute of Neurological Sciences, Prince of Wales Hospital and Prince of Wales Medical Research Institute, University of New South Wales, Barker Street, Randwick, Sydney, NSW 2031, Australia
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Argani H, Toopchizadeh V, Sadighmostophi M, Anami A. Evaluation of peripheral and central nerve integrity in hemodialysis and renal transplantation. Transplant Proc 2003; 35:2586-7. [PMID: 14612028 DOI: 10.1016/j.transproceed.2003.09.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- H Argani
- Division of Renal Transplant, Emam Hospital, Tabriz, Iran.
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Abstract
A-waves are compound muscle action potentials that follow the M-wave with a constant shape and latency; usually they are detected during F-wave studies. A large reference value database for F-wave parameters from the median, ulnar, peroneal, and tibial nerves was collected from 121-196 subjects aged 14 to 95 years without known pathology involving the studied nerves. From this material, we studied retrospectively the occurrence of A-waves. To be included, an A-wave had to be clearly discriminated from the baseline in at least 8 of 20 traces with a jitter of less than 0.5 ms. A-waves occurred in 25% of the tibial nerves studied and 14% of the peroneal nerves but in only 2% of median and ulnar nerves. In the peroneal and tibial nerves, the frequency of A-waves increased with age, suggesting that A-waves may be related to normal age-related mild neuropathic changes of alpha motor neurons. Thus, A-waves are frequently found in lower-extremity nerves in healthy subjects and less commonly in upper-extremity nerves. Their presence must therefore be interpreted with caution and cannot be taken as necessarily indicative of abnormality.
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Affiliation(s)
- Leena Puksa
- Department of Neurology and Neurosurgery, University Hospital, 5014 Tartu, Estonia.
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Chapter 13 Neurography – motor and sensory nerve conduction studies. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s1567-4231(09)70123-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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