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1.
Nephrol Ther ; 20(1): 50-60, 2024 02 28.
Artigo em Francês | MEDLINE | ID: mdl-38294264

RESUMO

Chronic kidney disease-associated pruritus (CKD-aP) is a disabling symptom which is frequent and often underestimated. Pa-MRC has a negative impact on quality of life, and is frequently accompanied by sleep disorders and depression. The approval of difelikefalin ­ a kappa opioid receptor agonist ­ in this indication requires updated recommendations. As a first step, secondary causes of pruritus without skin lesions must be ruled out, and general measures taken (emollients, psychological support, optimization of dialysis, normalization of serum calcium, phosphate and PTH in the range proposed by the KGIDO guidelines, treatment of iron deficiency). A therapeutic test with a non-sedating oral antihistamine may be proposed. If this test is negative, Pa-MRC must be strongly suspected, and its intensity (WI-NRS scale) and impact on quality of life assessed. In the case of mild Pa-MRC (WI-NRS ≤ 3), only general measures are implemented. If Pa-MRC is moderate to severe (WI-NRS ≥ 4), specific treatment with difelikefaline can be initiated for 6 months in addition to general measures. At 3 months, if the response is complete (WI-NRS score ≤ 1) or partial (decline ≥ 3 points), treatment is continued. At 6 months, if the response is complete, treatment may be discontinued with the patient's agreement; treatment is maintained if the response is partial. At 3 or 6 months, if response is insufficient (decline < 3 points) and/or in the event of intolerance, treatment is discontinued and an alternative treatment (e.g., gabapentinoids, UVB) may be considered after dermatological consultation.


Le prurit associé à la maladie rénale chronique (Pa-MRC) est un symptôme invalidant qui est fréquent et souvent sous-estimé. Le Pa-MRC a des conséquences négatives sur la qualité de vie et s'accompagne fréquemment de troubles du sommeil et de dépression. L'approbation de la difélikéfaline ­ agoniste des récepteurs opioïdes kappa ­ dans cette indication nécessite l'actualisation des recommandations. Les causes secondaires de prurit sans lésions cutanées doivent être exclues et des mesures générales doivent être prises (émollients, aide psychologique, optimisation de la dialyse, équilibre phosphocalcique avec parathormone [PTH] dans la cible KDIGO [Kidney Disease: Improving Global Outcomes], traitement de la carence martiale). Une épreuve thérapeutique avec un antihistaminique oral non sédatif peut être proposée. En cas de test négatif, il faut fortement suspecter un Pa-MRC et évaluer son intensité (échelle WI-NRS [Worst Itch Numeric Rating Scale]) et son impact sur la qualité de vie. En cas de Pa-MRC léger (WI-NRS ≤ 3), seules les mesures générales sont mises en œuvre. Si le Pa-MRC est modéré à sévère (WI-NRS ≥ 4), un traitement spécifique par difélikéfaline peut être instauré pour 6 mois en plus des mesures générales. À 3 mois, si la réponse est complète (score WI-NRS ≤ 1) ou partielle (baisse ≥ 3 points), le traitement est poursuivi. À 6 mois, si la réponse est complète, l'arrêt du traitement peut être envisagé avec l'accord du patient ; il est maintenu en cas de réponse partielle. À 3 ou 6 mois, en cas de réponse insuffisante (baisse < 3 points) et/ou d'intolérance, le traitement est interrompu et un autre traitement (par exemple, gabapentinoïdes, ultraviolet de type B [UVB]) peut être envisagé après avis dermatologique.


Assuntos
Qualidade de Vida , Insuficiência Renal Crônica , Humanos , Prurido/diagnóstico , Prurido/tratamento farmacológico , Prurido/etiologia , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/terapia , Diálise Renal/efeitos adversos
2.
Nephrol Ther ; 19(6): 475-482, 2023 11 02.
Artigo em Francês | MEDLINE | ID: mdl-37915193

RESUMO

Background: Chronic kidney disease-associated pruritus (CKD-aP) is common in hemodialysis patients and severely impairs their quality of life, but the practices of nephrologists remain poorly known. Methods: The objective of this on-line survey was to describe the management of CKD-aP in French nephrologists affiliated with the French-speaking Society of Nephrology, Dialysis and Transplantation (SFNDT) and involved in hemodialysis. Results: In total, 122 questionnaires were completed and 100 were usable. Nephrologists reported they personally managed a median of 52 patients; they estimated that the CKD-aP prevalence in their hemodialysis patients was a median of 10% (IQR, 6.3-17.2); 6% of nephrologists reported not following any patient with CKD-aP. In case of CKD-aP, the first-intention intervention was the evaluation of phosphocalcic metabolism (53.5%) and verification of dialysis adequacy (52%). For moderate-to-severe CKD-aP, the first-line prescription was topical therapy (71.3%), antihistamine (23.2%) and membrane change (15.9%). Patients were referred to a dermatologist mainly in case of treatment failure (86.9%) or scratching lesions (40.4%). Available treatments were considered ineffective for 50.5% of nephrologists, partially effective for 45.5% and effective for only 4%. Conclusion: These results show that according to the opinion of nephrologists, the pruritus prevalence is low in dialysis patients. This is inconsistent with studies based on systematic patient interviews, thus suggesting that pruritus is a symptom overlooked by nephrologists. In the context of the arrival of a new drug for pruritus, patients should be more questioned about this symptom in order to propose this treatment.


Introduction: Le prurit associé à l'insuffisance rénale chronique (Pa-IRC) est fréquent chez les patients hémodialysés et altère gravement leur qualité de vie, mais les pratiques des néphrologues restent mal connues. Méthodes: L'objectif de cette enquête en ligne était de décrire la prise en charge du Pa-IRC par les néphrologues français hémodialyseurs affiliés à la Société francophone de néphrologie, dialyse et transplantation (SFNDT). Résultats: Au total, 122 questionnaires ont été remplis et 100 étaient utilisables. Les néphrologues suivaient personnellement 52 patients (médiane). Ils estimaient que la prévalence du Pa-IRC chez ces patients était de 10 % (médiane ; écart interquartile : 6,3-17,2) ; 6 % des néphrologues ont déclaré ne suivre aucun patient atteint de Pa-IRC. En cas de Pa-IRC, l'intervention de première intention était l'évaluation du métabolisme phosphocalcique (53,5 %) et la vérification de la qualité de dialyse (52 %). Pour le Pa-IRC modéré à sévère, la prescription de première intention était un traitement topique (71,3 %), un antihistaminique (23,2 %) et un changement de membrane (15,9 %). Les traitements disponibles étaient considérés comme inefficaces pour 50,5 % des néphrologues, partiellement efficaces pour 45,5 % et efficaces pour seulement 4 %. Conclusion: Ces résultats montrent que selon l'opinion des néphrologues, la prévalence du prurit est faible chez les patients dialysés. Ceci est en contradiction avec les études basées sur des entretiens systématiques avec les patients, suggérant ainsi que le prurit est un symptôme sous-estimé par les néphrologues. Dans le contexte de l'arrivée d'un nouveau médicament pour le prurit, les patients devraient être davantage interrogés sur ce symptôme afin de proposer ce traitement.


Assuntos
Nefrologistas , Insuficiência Renal Crônica , Humanos , Qualidade de Vida , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/terapia , Diálise Renal/métodos , Inquéritos e Questionários , Prurido/epidemiologia , Prurido/etiologia
3.
Clin Kidney J ; 16(7): 1102-1112, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37398693

RESUMO

Background: Chronic kidney disease-associated pruritus (CKD-aP) is a common condition in patients treated with hemodialysis, and has a negative impact on quality of life (QoL). Due to the lack of standardized diagnostic tools and frequent underreporting, pruritus prevalence remains poorly documented. Methods: Pruripreva was a prospective multicenter observational study that aimed to evaluate the prevalence of moderate to severe pruritus in a cohort of French hemodialysis patients. The primary endpoint was the rate of patients with mean Worst Itch Numerical Rating Scale (WI-NRS) score ≥4 calculated over 7 days (moderate pruritus, 4-6; severe, 7-8; very severe, 9-10). Impact of CKD-aP on QoL was analyzed according to its severity (WI-NRS), using 5-D Itch scale, EQ-5D and Short Form (SF)-12. Results: Mean WI-NRS was ≥4 in 306 patients (mean age, 66.6 years; male, 57.6%) out of 1304 and prevalence of moderate to very severe pruritus was 23.5% (95% confidence interval 21.2-25.9). Pruritus was unknown prior to the systematic screening in 37.6% of patients, and 56.4% of those affected were treated for this condition. The more severe the pruritus, the poorer the QoL according to the 5-D Itch scale, EQ-5D and SF-12. Conclusion: Moderate to very severe pruritus was reported in 23.5% of hemodialysis patients. CKD-aP was underrated although it is associated with a negative impact on QoL. These data confirm that pruritus in this setting is an underdiagnosed and underreported condition. There is an urgent demand for new therapies to treat chronic pruritus associated with CKD in hemodialysis patients.

5.
Nephrol Ther ; 18(6S1): 6S11-6S16, 2022 Dec.
Artigo em Francês | MEDLINE | ID: mdl-36585120

RESUMO

Chronic Kidney Disease associated Pruritus (CKD-aP) is a well-established and frequent complication observed in patient with CKD, especially in dialysis patients. However, the management of CKD-aP remains a challenge as the pathophysiology and research studies are too small. Finally, there are a few proposed treatment options with significant clinical benefits. This general review will summarize all the available treatments for the CKD-aP and will highlight the clinical efficacy and limits of the current drugs. Notably, we will focus on the implication of the opioid receptor in the pathophysiology of the CKD-aP and the recently Kappa opioid receptor agonist. © 2022 Published by Elsevier Masson SAS on behalf of Société francophone de néphrologie, dialyse et transplantation.


Assuntos
Insuficiência Renal Crônica , Humanos , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/terapia , Prurido/etiologia , Diálise Renal/efeitos adversos
6.
Clin Kidney J ; 15(9): 1782-1784, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36003674

RESUMO

Obesity limits the access to kidney transplantation and increases the risk of complications and mortality posttransplantation. Usual noninvasive measures, including lifestyle changes and dietary education, do not provide long-term and consistent body weight reduction. In many cases, only bariatric surgery allows patients to significantly reduce body weight. We here report two cases of obese hemodialysis (HD) patients who were successfully treated with off-labeled semaglutide, a glucagon-like peptide receptor agonist (GLP-1RA). The first patient had a body mass index (BMI) of 45.7 kg/m2 despite a history of partial gastrectomy. The second patient had a history of type 2 diabetes mellitus and a BMI of 36.5 kg/m2. Both patients started semaglutide at the maximal subcutaneous dose of 1 mg/week, which was clinically well tolerated. During the 9-month follow-up, body weight loss ranged from 6.5 to 9.0 kg, ∼1 kg/month. GLP-1RAs, such as semaglutide or liraglutide, could be a novel pharmacological alternative to bariatric surgeries for these HD patients.

9.
J Clin Apher ; 37(1): 91-99, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34874570

RESUMO

BACKGROUND: Rheopheresis is a double-filtration plasmapheresis that removes high-molecular-weight molecules from the plasma and thereby lowers blood viscosity. This treatment has been proposed in hemodialysis (HD) patients for chronic limb-threatening ischemia (CLTI), but very few studies have evaluated the usefulness of this technique. PRINCIPAL OBJECTIVE: To assess 1-year amputation-free survival (AFS) of HD patients suffering from CLTI treated by rheopheresis. MATERIAL AND METHOD: We conducted a retrospective study of 28 consecutive HD patients treated by rheopheresis in three French dialysis centers between 1 February 2017 and 30 April 2019 in two indications resulting from CLTI, namely chronic ulceration or recent minor amputation with delayed healing. RESULTS: One-year AFS rate reached 53.6 (-19.8; +16.3)%. One-year overall survival rate reached 67.9 (-20.5; +13.1)%. Main causes of death were infections and related to palliative care implying reduction or withdrawal of regular dialysis treatment. Hypotension episodes were the main rheopheresis adverse events with a prevalence rate of 13.5%. Rheopheresis sessions significantly reduced fibrinogen, C-reactive protein, α2-macroglobulin, total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, triglycerides, IgM, and estimated plasma viscosity (P < .0001). CONCLUSION: Rheopheresis may improve clinical outcomes of CLTI in HD patients. The assessment of rheopheresis effectiveness needs to be confirmed by a multicenter randomized controlled trial, such as the ongoing project in France (RHEO-PAD, NCT: 03975946).


Assuntos
Doença Arterial Periférica/terapia , Plasmaferese/métodos , Diálise Renal , Idoso , Idoso de 80 Anos ou mais , Amputação Cirúrgica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Doença Arterial Periférica/cirurgia , Estudos Retrospectivos , Índice de Gravidade de Doença , Fatores de Tempo
11.
Transpl Int ; 34(8): 1573-1575, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34384144

RESUMO

A 42-year-old hemodialysis (HD) patient was investigated in our department for symptomatic heart failure (HF) despite daily home dialysis. He had a history of living donor kidney transplantation at the age of 18 that lasted 7 years. Home dialysis was then started. At the age of 40, he developed acute heart failure symptoms. Echocardiography revealed severe dilated cardiomyopathy (DCM). Coronarography and myocardial perfusion scintigraphy showed no abnormal findings. Betablockers were administrated, and RAAS inhibitor dosing was optimized. Dyspnea persisted, and patient was referred to our department. At admission, blood pressure was 116/82 mmHg, and pulse 68 beats/min. No peripheral edema was observed. Dry weight was 62.5 kg. Patient was anuric. Hemoglobin level was 9.8 g/dl, highly sensitive troponin level was 62 ng/ml, and BNP level was 1527 ng/ml. The liver enzyme levels were normal. C-reactive protein was 4.2 mg/ml. Vitamin level, zinc levels, and thyroid function were normal.


Assuntos
Cardiomiopatia Dilatada , Transplante de Rim , Adulto , Criança , Coração , Humanos , Rim , Transplante de Rim/efeitos adversos , Masculino , Nefrologistas
12.
Transpl Int ; 34(8): 1566-1567, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34028090

RESUMO

A 42-year-old hemodialysis (HD) patient was investigated in our department for symptomatic heart failure (HF) despite daily home dialysis. He had a history of living donor kidney transplantation at the age of 18 that lasted 7 years. Home dialysis was then started. At the age of 40, he developed acute heart failure symptoms. Echocardiography revealed severe dilated cardiomyopathy (DCM). Coronarography and myocardial perfusion scintigraphy showed no abnormal findings. Betablockers were administrated and RAAS inhibitor dosing was optimized. Dyspnea persisted and patient was referred to our department. At admission, blood pressure was 116/82 mmHg, and pulse 68 beats/min. No peripheral edema was observed. Dry weight was 62.5 kg. Patient was anuric. Hemoglobin level was 9.8 g/dl, highly sensitive troponin level was 62 ng/ml and BNP level 1527 ng/ml. The liver enzymes levels as were normal. C-reactive protein was 4.2 mg/ml. Vitamin level, zinc levels and thyroid function were normal.


Assuntos
Cardiomiopatia Dilatada , Insuficiência Cardíaca , Transplante de Rim , Adulto , Cardiomiopatia Dilatada/cirurgia , Criança , Coração , Humanos , Rim , Transplante de Rim/efeitos adversos , Masculino , Nefrologistas
13.
Nephrol Dial Transplant ; 36(8): 1511-1518, 2021 07 23.
Artigo em Inglês | MEDLINE | ID: mdl-34021358

RESUMO

BACKGROUND: Intradialytic hypotension (IDH), a common complication in haemodialysis (HD) patients, is associated with multiple risk factors including cardiac dysfunction and alterations of the peripheral autonomic nervous system. To what extent dysautonomia may contribute to the occurrence of IDH remains elusive. We sought to investigate the clinical utility of Sudocan®, a device that quantifies dysautonomia, in the prediction of IDH. METHODS: We conducted a prospective monocentric study in adult HD patients from July 2019 to February 2020. Dysautonomia was assessed by the measurements of hand and foot electrochemical skin conductance (ESC) using Sudocan®, before HD. The primary endpoint was the incidence of IDH (The National Kidney Foundation/Kidney-Dialysis Outcome Quality Initiative definition), according to the presence of a pathological hand and/or foot ESC value, during the 3-month study period. RESULTS: A total of 176 HD patients (64 ± 14 years old) were enrolled. Mean pre-dialysis HD hand and foot ESC was 45 ± 20 and 54 ± 22 µS, respectively. About 35% and 40% of patients had a pathological ESC at the hand and foot, respectively. IDH occurred in 46 patients. Logistic regression showed that pathologic pre-dialysis HD hand ESC was associated with an increased risk of IDH [odds ratio = 2.56, 95% CI (1.04-6.67), P = 0.04]. The cumulative risk incidence of IHD during the study was 5.65 [95% CI (2.04-15.71), P = 0.001] and 3.71 [95% CI (1.41-9.76), P = 0.008], with a pathological hand and foot ESC, respectively. CONCLUSIONS: A pathological hand ESC, as assessed by a non-invasive Sudoscan® test, is associated with an increased risk of IDH.


Assuntos
Hipotensão , Falência Renal Crônica , Adulto , Idoso , Humanos , Hipotensão/diagnóstico , Hipotensão/etiologia , Falência Renal Crônica/terapia , Pessoa de Meia-Idade , Estudos Prospectivos , Diálise Renal/efeitos adversos , Fatores de Risco
14.
Clin Kidney J ; 14(1): 124-131, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33558835

RESUMO

BACKGROUND: Information regarding coronavirus disease 2019 (COVID-19) in haemodialysis (HD) patients is limited and early studies suggest a poor outcome. We aimed to identify clinical and biological markers associated with severe forms of COVID-19 in HD patients. METHODS: We conducted a prospective, observational and multicentric study. Sixty-two consecutive adult HD patients with confirmed COVID-19 from four dialysis facilities in Paris, France, from 19 March to 19 May 2020 were included.Blood tests were performed before diagnosis and at Days 7 and 14 after diagnosis. Severe forms of COVID-19 were defined as requiring oxygen therapy, admission in an intensive care unit or death. Cox regression models were used to compute adjusted hazard ratios (aHRs). Kaplan-Meier curves and log-rank tests were used for survival analysis. RESULTS: Twenty-eight patients (45%) displayed severe forms of COVID-19. Compared with non-severe forms, these patients had more fever (93% versus 56%, P < 0.01), cough (71% versus 38%, P = 0.02) and dyspnoea (43% versus 6%, P < 0.01) at diagnosis. At Day 7 post-diagnosis, neutrophil counts, neutrophil:lymphocyte (N:L) ratio, C-reactive protein, ferritin, fibrinogen and lactate dehydrogenase levels were significantly higher in severe COVID-19 patients. Multivariate analysis revealed an N:L ratio >3.7 was the major marker associated with severe forms, with an aHR of 4.28 (95% confidence interval 1.52-12.0; P = 0.006). After a median follow-up time of 48 days (range 27-61), six patients with severe forms died (10%). CONCLUSIONS: HD patients are at increased risk of severe forms of COVID-19. An elevated N:L ratio at Day 7 was highly associated with the severe forms. Assessing the N:L ratio could inform clinicians for early treatment decisions.

15.
Clin Kidney J ; 14(2): 471-473, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35261757

RESUMO

Acute kidney injury (AKI) is a common disorder that complicates the hospital course of many patients. AKI is linked with an independent risk of death, hospital length of stay and chronic kidney disease (CKD). Several preoperative predictors are found to be associated with AKI after surgery independent of its origin (cardiac versus non-cardiac). Among these, anaemia has been widely recognized and studied. Anaemia is more common within the surgical population for various reasons (iron deficiency, blood loss, anaemia of chronic disease such as inflammatory state, malignancy or CKD). Both pre- and postoperative anaemia have a deleterious impact on different clinical outcomes including AKI. In this issue, Nishimoto et al. investigated whether AKI could be a risk factor for anaemia (and not the opposite) and whether anaemia could be an independent mediator of mortality after AKI.

16.
Clin Nephrol ; 95(3): 136-142, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33210999

RESUMO

INTRODUCTION: While the native arteriovenous fistula (AVF) is the preferred dialysis access, it is a matter of debate for individuals older than 80 years due to reduced primary patency rates. MATERIALS AND METHODS: We initiated a single-center, observational retrospective analysis of adult dialysis patients from January 2015 to December 2018. We included all patients older than 70 years with a minimum of 12 months of follow-up, beginning from the AVF creation. Patients were separated into two groups, octogenarians (> 80 years old) and controls (70 - 79 years old). The primary end point was the primary patency (the interval from arteriovenous access creation to the first intervention). The secondary end point were the complications at 3 months (failures of puncture, canceled dialysis sessions, local hematoma, AVF bleeding). RESULTS: 29 patients (octogenarian = 17, control = 12) were included in the analysis. The AVF radio-cephalic was the most common vascular access in each group. Primary patency was comparable between groups, but octogenarians required 40% more procedures to obtain or maintain patency. Overall, a functional AVF was obtained for all patients except in cases of complications such as hematomas, which were more frequent in octogenarians compared to controls (25 vs. 82%, p < 0.01). All catheters were removed at 6 months follow-up, with a median time to removal of 27 days (range 5 - 157 days). DISCUSSION: Despite a higher rate of interventions and local complications during the first 3 months, AVF and particularly radio-cephalic AVF, is a valid procedure for octogenarians, without lengthening the exposure time to the catheter.


Assuntos
Derivação Arteriovenosa Cirúrgica , Diálise Renal , Idoso , Idoso de 80 Anos ou mais , Derivação Arteriovenosa Cirúrgica/efeitos adversos , Derivação Arteriovenosa Cirúrgica/métodos , Estudos de Viabilidade , Humanos , Diálise Renal/efeitos adversos , Diálise Renal/métodos , Estudos Retrospectivos , Resultado do Tratamento , Dispositivos de Acesso Vascular/efeitos adversos , Grau de Desobstrução Vascular
17.
Hemodial Int ; 24(2): 188-194, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-32048444

RESUMO

INTRODUCTION: Hepcidin is a key factor that regulates iron homeostasis. In hemodialysis patients (HD), a high hepcidin level may decrease intestinal iron absorption and reduce the efficacy of Oral iron vs Intravenous iron therapy. Whether the hepcidin level in HD could guide oral iron therapy is unclear. METHODS: We report a monocentric study on nine "erythropoietin (EPO)-free" patients (without recombinant human EPO [rHU-EPO] for at least 6 months) and normal hepcidin level (<20 ng mL) during the study. After 15 days of washout, oral iron (ferrous sulfate 80 mg/day) was introduced. The primary end point was the hemoglobin response and iron store at 3 months. FINDINGS: Nine patients (8 men, 1 woman) with a median age of 62 years (range 42-79) were included. After 1 week of treatment, the median transferrin saturation index increased from 15% (range 6-61) to 34% (range 13-42), P = 0.62, reflecting intestinal absorption. The median ferritin level remained stable 80 µg/L (35-293) vs 82 µg/L (range 37-496) between M0 and M3, P = 0.43. During the 3-month study, median hemoglobin level increased from 11.5 d/dL (range10.4-13.7) to 12.8 g/dL (range 11.1-15.2), P = 0.01. No major side effects were observed. Quality of life assessed by the SF-36 criteria was similar during the 3-month study. DISCUSSION: Oral iron therapy is effective and safe in EPO-free patients with normal hepcidin levels. These findings suggest that serum hepcidin may be a marker for defining iron therapy strategies in HD patients. HD patients treated with rHU-EPO and with normal hepcidin levels could benefit from oral iron treatment.


Assuntos
Biomarcadores/sangue , Hepcidinas/uso terapêutico , Ferro/uso terapêutico , Diálise Renal/efeitos adversos , Adulto , Idoso , Feminino , Humanos , Ferro/administração & dosagem , Masculino , Pessoa de Meia-Idade , Projetos Piloto
18.
J Am Heart Assoc ; 9(1): e014264, 2020 01 07.
Artigo em Inglês | MEDLINE | ID: mdl-31902281

RESUMO

Background Hemodialysis patients are at risk of intradialytic hypotension (IDH), which is associated with mortality and cardiovascular and neurological events. The use of biomarkers of volemia such as relative change in protidemia and BNP (B-natriuretic peptide) levels to predict IDH remains unknown. Methods and Results We conducted a prospective observational study, which enrolled 170 chronic hemodialysis patients in a single center from September 2015 to March 2016. BNP and the relative change of protidemia level (Δprotidemia=postdialysis protidemia-predialysis protidemia) were measured monthly over 6 months. A logistic mixed regression model was used to define the best biomarkers that predict the 30-day risk of IDH. Receiver operating characteristic analysis area under the curve was used to define the cutoff values of Δprotidemia that predict IDH A logistic mixed model reveals that Δprotidemia predicts the 30-day risk of IDH but not BNP or age; odds ratio=1.12, 95% CI 1.08-1.17), odds ratio=0.81, 95% CI (0.64; 1.07) and odds ratio =0.015 95% CI (0.99; 1.03), respectively. Adding the ultrafiltration rate did not improve the model. A receiver operating characteristic curve analysis showed that Δprotidemia of 10 g/L allowed for discrimination of the patients with IDH (area under the curve= 0.67; 95% CI 0.62-0.72, P<0.05). There was an increase in area under the curve to 0.71 (95% CI 0.63-0.76) in a subgroup of hemodialysis with BNP <300 ng/L, for a cutoff value of 11 g/L, especially for the nondiabetic patients. Conclusions Relative change in protidemia level (Δprotidemia) outperforms BNP and ultrafiltration rate as a predictor for 30-day risk of IDH. These results should be confirmed by a prospective study.


Assuntos
Pressão Sanguínea , Proteínas Sanguíneas/metabolismo , Hipotensão/sangue , Hipovolemia/sangue , Diálise Renal/efeitos adversos , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/sangue , Feminino , Humanos , Hipotensão/etiologia , Hipotensão/fisiopatologia , Hipovolemia/etiologia , Hipovolemia/fisiopatologia , Masculino , Pessoa de Meia-Idade , Peptídeo Natriurético Encefálico/sangue , Valor Preditivo dos Testes , Estudos Prospectivos , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
19.
Nephrology (Carlton) ; 25(1): 82-89, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30887608

RESUMO

AIM: Clinical interpretation of B-type natriuretic peptide (BNP) levels in haemodialysis (HD) patients for fluid management remains elusive. METHODS: We conducted a retrospective observational monocentric study. We built a mathematical model to predict BNP levels, using multiple linear regressions. Fifteen clinical/biological characteristics associated with BNP variation were selected. A first cohort of 150 prevalent HD (from September 2015 to March 2016) was used to build several models. The best model proposed was internally validated in an independent cohort of 75 incidents HD (from March 2016 to December 2017). RESULTS: In cohort 1, mean BNP level was 630 ± 717 ng/mL. Cardiac disease (CD - stable coronary artery disease and/or atrial fibrillation) was present in 45% of patients. The final model includes age, systolic blood pressure, albumin, CD, normo-hydrated weight (NHW) and the fluid overload (FO) assessed by bio-impedancemetry. The correlation between the measured and the predicted log-BNP was 0.567 and 0.543 in cohorts 1 and 2, respectively. Age (ß = 3.175e-2 , P < 0.001), CD (ß = 5.243e-1 , P < 0.001) and FO (ß = 1.227e-1 , P < 0.001) contribute most significantly to the BNP level, respectively, but within a certain range. We observed a logistic relationship between BNP and age between 30 and 60 years, after which this relationship was lost. BNP level was inversely correlated with NHW independently of CD. Finally, our model allows us to predict the BNP level according to the FO. CONCLUSION: We developed a mathematical model capable of predicting the BNP level in HD. Our results show the complex contribution of age, CD and FO on BNP level.


Assuntos
Falência Renal Crônica/terapia , Modelos Biológicos , Peptídeo Natriurético Encefálico/sangue , Diálise Renal/efeitos adversos , Equilíbrio Hidroeletrolítico , Desequilíbrio Hidroeletrolítico/diagnóstico , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/sangue , Doenças Cardiovasculares/sangue , Doenças Cardiovasculares/fisiopatologia , Feminino , Humanos , Falência Renal Crônica/sangue , Falência Renal Crônica/diagnóstico , Falência Renal Crônica/fisiopatologia , Masculino , Pessoa de Meia-Idade , Estado de Hidratação do Organismo , Valor Preditivo dos Testes , Reprodutibilidade dos Testes , Estudos Retrospectivos , Fatores de Risco , Resultado do Tratamento , Desequilíbrio Hidroeletrolítico/sangue , Desequilíbrio Hidroeletrolítico/etiologia , Adulto Jovem
20.
Hemodial Int ; 23(4): E127-E129, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31579994

RESUMO

Vancomycin is a widely used antibiotic in hemodialysis patients. The main complications include renal toxicity and skin lesions. Herein, we report the case of a 29-year-old hemodialysis patient who presented a bullous pruriginous dermatosis after vancomycin treatment. A skin biopsy revealed a linear IgA bullous dermatosis (LABD). This is a rare form of dermatosis and is either idiopathic or more likely vancomycin-induced. Similarities in the molecular structure of vancomycin and epidermal basement membrane glycoproteins could explain the auto-immune response. The overall prognosis after drug discontinuation and dermocorticoid treatment was good.


Assuntos
Dermatose Linear Bolhosa por IgA/induzido quimicamente , Diálise Renal/efeitos adversos , Vancomicina/efeitos adversos , Adulto , Humanos , Masculino , Prognóstico , Diálise Renal/métodos
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