Blood Purification最新文献

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Reduction Rate of Uric Acid in Blood during Continuous Renal Replacement Therapy for Acute Kidney Injury: A Multicenter Retrospective Observational Study. 急性肾损伤持续肾替代治疗期间血液中尿酸的降低率:一项多中心回顾性观察研究。
IF 2.2 3区 医学
Blood Purification Pub Date : 2025-01-01 Epub Date: 2024-10-29 DOI: 10.1159/000542329
Yutaro Inoue, Ryota Inokuchi, Hidehiko Nakano, Yoshiki Masuda, Osamu Nishida, Kent Doi
{"title":"Reduction Rate of Uric Acid in Blood during Continuous Renal Replacement Therapy for Acute Kidney Injury: A Multicenter Retrospective Observational Study.","authors":"Yutaro Inoue, Ryota Inokuchi, Hidehiko Nakano, Yoshiki Masuda, Osamu Nishida, Kent Doi","doi":"10.1159/000542329","DOIUrl":"10.1159/000542329","url":null,"abstract":"<p><strong>Introduction: </strong>Continuous renal replacement therapy (CRRT) eliminates these small solutes with equal efficacy under the same conditions. However, variations in the reduction rates of these solutes observed in patients with CRRT are likely influenced by factors other than removal through CRRT. This study evaluated the reduction rates of these small solutes during CRRT and their possible association with mortality.</p><p><strong>Methods: </strong>This study used the data of limited patients registered in the CHANGE study, which is a large retrospective observational study on CRRT management across 18 Japanese ICUs. Reduction rates of three solutes in blood, calculated on the 1st and 2nd days, were compared in patients with acute kidney injury (AKI) treated by CRRT. The potential association between solute reduction rates and mortality during CRRT or within 7 days after the termination of CRRT was evaluated.</p><p><strong>Results: </strong>In total, 163 patients with AKI were included in the analysis. The reduction rates of uric acid (UA) were significantly higher than those of urea and creatinine for the 1st and 2nd tests in the entire cohort. Receiver operating characteristic (ROC) curve analysis revealed that lower UA reduction rates were significantly associated with mortality during CRRT or within 7 days after CRRT termination {area under the ROC curve: 0.62 [95% confidence interval (CI): 0.52-0.71] for the 1st test and 0.63 [95% CI: 0.54-0.72] for the 2nd test}. After adjusting for age and SOFA score, a significant association was observed between lower UA reduction rates and hospital mortality for both tests.</p><p><strong>Conclusion: </strong>Among the small solutes, UA reduction rates in patients with AKI treated with CRRT were notably higher than those of creatinine and urea. Furthermore, the significant association between lower UA reduction rates and mortality suggests that UA reduction rate may serve as a valuable indicator of insufficient removal of uremic solutes by CRRT, although the decline in UA production must be taken into account.</p><p><strong>Introduction: </strong>Continuous renal replacement therapy (CRRT) eliminates these small solutes with equal efficacy under the same conditions. However, variations in the reduction rates of these solutes observed in patients with CRRT are likely influenced by factors other than removal through CRRT. This study evaluated the reduction rates of these small solutes during CRRT and their possible association with mortality.</p><p><strong>Methods: </strong>This study used the data of limited patients registered in the CHANGE study, which is a large retrospective observational study on CRRT management across 18 Japanese ICUs. Reduction rates of three solutes in blood, calculated on the 1st and 2nd days, were compared in patients with acute kidney injury (AKI) treated by CRRT. The potential association between solute reduction rates and mortality during CRRT or within 7 days ","PeriodicalId":8953,"journal":{"name":"Blood Purification","volume":" ","pages":"83-92"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11854975/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142543345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Residual Red Blood Cell Volume in Extracorporeal Blood Circuit after Hemodialysis: A Single-Center Study. 血液透析后体外循环中的残余红细胞容量:单中心研究
IF 2.2 3区 医学
Blood Purification Pub Date : 2025-01-01 Epub Date: 2024-10-15 DOI: 10.1159/000542004
Sae-Yong Hong, Nam-Seon Beck, Jong-Ran Lee, Eun-Kyoung Jeon, So-Min Kim, Sol-Rim Park, Ok-Ju Park, Jungrak Hong, Joung-Il Im
{"title":"Residual Red Blood Cell Volume in Extracorporeal Blood Circuit after Hemodialysis: A Single-Center Study.","authors":"Sae-Yong Hong, Nam-Seon Beck, Jong-Ran Lee, Eun-Kyoung Jeon, So-Min Kim, Sol-Rim Park, Ok-Ju Park, Jungrak Hong, Joung-Il Im","doi":"10.1159/000542004","DOIUrl":"10.1159/000542004","url":null,"abstract":"<p><strong>Introduction: </strong>The factors contributing to blood loss during hemodialysis (HD) procedures remain underexplored. This study aimed to quantify blood loss during HD and identify the potential factors associated with it.</p><p><strong>Methods: </strong>The study included 70 ESRD patients undergoing HD. After dialysis, the extracorporeal blood circuits were rinsed with 1,000 mL of 0.05% NH3 solution in distilled water, and hemoglobin levels were measured. Univariate regression was used to assess the linear relationship between residual red blood cell (RBC) volume and various parameters, including HD mode, dialyzer surface area, ultrafiltration goal, hypotension during HD, blood flow rate, activated partial thromboplastin time, and C-reactive protein. Multivariate regression was also conducted to explore the relationships among these parameters.</p><p><strong>Results: </strong>The mean RBC volume remaining in the extracorporeal blood circuit after HD was 1.6 ± 0.9 mL (mode: 1.0, range: 0.3-6.5 mL). When converted to whole blood volume per patient, the mean blood volume was 5.3 ± 3.0 mL (median: 4.1 mL, mode: 4.0 mL, range: 1.0-19.0 mL). Multivariate analysis identified the dialyzer surface area as the only significant determinant of residual RBC volume.</p><p><strong>Conclusion: </strong>After HD, the remaining RBC volume in the extracorporeal blood circuit varies from 1.6 to 6.5 mL. When the RBC volume was converted to whole blood volume for each case, the blood loss ranged from 1.0 to 19.0 mL. Dialyzer surface area was the only significant determinant of residual RBC volume.</p>","PeriodicalId":8953,"journal":{"name":"Blood Purification","volume":" ","pages":"54-61"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142457193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
First-In-Human Rapid Removal of Circulating Tumor Cells in Solid Metastatic Neoplasia by Microbind Affinity Blood Filter. 首次在人体中利用微粘合亲和血液过滤器快速清除实体肿瘤转移中的循环肿瘤细胞。
IF 2.2 3区 医学
Blood Purification Pub Date : 2025-01-01 Epub Date: 2024-11-04 DOI: 10.1159/000542325
Sanja Ilic, Vedran Premuzic
{"title":"First-In-Human Rapid Removal of Circulating Tumor Cells in Solid Metastatic Neoplasia by Microbind Affinity Blood Filter.","authors":"Sanja Ilic, Vedran Premuzic","doi":"10.1159/000542325","DOIUrl":"10.1159/000542325","url":null,"abstract":"<p><strong>Introduction: </strong>We conducted a first-in-human trial evaluating safety and the potential for combined pathogen and circulating tumor cell (CTC) removal in patients with solid metastatic cancers.</p><p><strong>Methods: </strong>The Seraph procedure was performed at a hemodialysis clinic on 10 consecutive patients with metastatic cancer whose liquid biopsy was positive for the epithelial cell adhesion molecule. All the patients exerted positive bacterial or fungal isolates.</p><p><strong>Results: </strong>We have demonstrated the ability of Seraph100® Filter to remove both pathogens and CTCs, with median reduction of 71% within 120 min, from patient blood.</p><p><strong>Conclusion: </strong>High-yield CTC clearance could potentially benefit patients in diagnostic and personalized treatment of cancer to be elucidated in further research.</p>","PeriodicalId":8953,"journal":{"name":"Blood Purification","volume":" ","pages":"138-140"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142575275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Early Initiation of Icodextrin Reduces Peritoneal Dialysis-Associated Peritonitis Risk: A Retrospective Cohort Study. 早期使用醋酸糊精可降低腹膜透析相关腹膜炎的风险:一项回顾性队列研究。
IF 2.2 3区 医学
Blood Purification Pub Date : 2025-01-01 Epub Date: 2024-12-06 DOI: 10.1159/000542326
Ryunosuke Mitsuno, Takashin Nakayama, Kohkichi Morimoto, Kiyotaka Uchiyama, Naoki Washida, Ei Kusahana, Eriko Yoshida Hama, Shun Tonomura, Norifumi Yoshimoto, Akihito Hishikawa, Aika Hagiwara, Tatsuhiko Azegami, Jun Yoshino, Toshiaki Monkawa, Tadashi Yoshida, Shintaro Yamaguchi, Kaori Hayashi
{"title":"Early Initiation of Icodextrin Reduces Peritoneal Dialysis-Associated Peritonitis Risk: A Retrospective Cohort Study.","authors":"Ryunosuke Mitsuno, Takashin Nakayama, Kohkichi Morimoto, Kiyotaka Uchiyama, Naoki Washida, Ei Kusahana, Eriko Yoshida Hama, Shun Tonomura, Norifumi Yoshimoto, Akihito Hishikawa, Aika Hagiwara, Tatsuhiko Azegami, Jun Yoshino, Toshiaki Monkawa, Tadashi Yoshida, Shintaro Yamaguchi, Kaori Hayashi","doi":"10.1159/000542326","DOIUrl":"10.1159/000542326","url":null,"abstract":"<p><strong>Introduction: </strong>Peritonitis is a common and serious complication of peritoneal dialysis (PD) that leads to its discontinuation and death. Icodextrin (ICO) improves peritoneal ultrafiltration and its early use reduces mortality. However, its effectiveness in reducing PD-associated infections remains to be elucidated.</p><p><strong>Methods: </strong>This retrospective observational study enrolled patients who underwent PD between September 2011 and March 2020. The patients were classified into two groups: those who received ICO at the initiation of PD therapy (early ICO) and those who received ICO later or not at all (late/no ICO) and were followed up from PD induction until PD cessation, death, or 3 years had passed.</p><p><strong>Results: </strong>Of the 82 patients (age, 61 [53-72] years), 21 received early ICO. During follow-up (36 [14-36] months), the incidence of PD-associated peritonitis was 0.17 episodes per patient-year. Log-rank tests indicated that PD-associated peritonitis and tunnel infection (TI)-free survival rates were significantly better with the early use of ICO than with late/no ICO (p = 0.02 and p = 0.01, respectively). The early use of ICO remained significantly associated with decreased incidence of both peritonitis and TI (hazard ratio [HR], 0.19; 95% confidence interval [CI], 0.06-0.69 and HR, 0.10; 95% CI, 0.01-0.78, respectively) using Cox regression analysis adjusted for potential confounders.</p><p><strong>Conclusion: </strong>Beginning ICO administration at the initiation of PD shows promise for mitigating the risks of PD-associated peritonitis and TI.</p>","PeriodicalId":8953,"journal":{"name":"Blood Purification","volume":" ","pages":"174-183"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794313","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Innovation of a Neonatal Peritoneal Dialysis Catheter to Expand Dialysis Capabilities for Critically Ill Neonates in Low-Resource Settings. 创新新生儿腹膜透析导管扩大透析能力的危重新生儿在低资源设置。
IF 2.2 3区 医学
Blood Purification Pub Date : 2025-01-01 Epub Date: 2025-01-02 DOI: 10.1159/000542613
Sergio Ruiz Vega, Carl Russell Lll, Siting Zhang, Mignon McCulloch, Aaron Lottes, Hyowon Lee, Danielle E Soranno
{"title":"Innovation of a Neonatal Peritoneal Dialysis Catheter to Expand Dialysis Capabilities for Critically Ill Neonates in Low-Resource Settings.","authors":"Sergio Ruiz Vega, Carl Russell Lll, Siting Zhang, Mignon McCulloch, Aaron Lottes, Hyowon Lee, Danielle E Soranno","doi":"10.1159/000542613","DOIUrl":"10.1159/000542613","url":null,"abstract":"<p><strong>Introduction: </strong>The lack of peritoneal dialysis (PD) catheters designed explicitly for neonates creates significant challenges in the provision of neonatal PD. High resource settings can circumvent this limitation by resorting to alternative extracorporeal dialysis methods. However, in low-resource settings, PD remains the preferred dialysis modality, and the use of off-label catheters for PD results in complications such as omental wrapping and occlusion. This study introduces a novel catheter design featuring a multi-diameter side port configuration and a helical geometry.</p><p><strong>Methods: </strong>We employed numerical simulations to identify an optimal multi-diameter side port configuration, to address fluid dynamic issues that lead to catheter occlusion and omental wrapping. Following the simulations, we experimentally evaluated the catheter's performance in a series of benchtop tests designed to simulate physiological conditions encountered in neonatal PD.</p><p><strong>Results: </strong>Our experimental evaluations demonstrated that the helical catheter outperforms commonly utilized pigtail catheters with same-sized diameter side ports by consistently achieving superior drainage efficiency during fibrin clot occlusion and omental wrapping tests.</p><p><strong>Conclusion: </strong>The catheter is intended to be placed at the bedside to perform renal replacement therapy for neonates in low-resourced settings.</p><p><strong>Introduction: </strong>The lack of peritoneal dialysis (PD) catheters designed explicitly for neonates creates significant challenges in the provision of neonatal PD. High resource settings can circumvent this limitation by resorting to alternative extracorporeal dialysis methods. However, in low-resource settings, PD remains the preferred dialysis modality, and the use of off-label catheters for PD results in complications such as omental wrapping and occlusion. This study introduces a novel catheter design featuring a multi-diameter side port configuration and a helical geometry.</p><p><strong>Methods: </strong>We employed numerical simulations to identify an optimal multi-diameter side port configuration, to address fluid dynamic issues that lead to catheter occlusion and omental wrapping. Following the simulations, we experimentally evaluated the catheter's performance in a series of benchtop tests designed to simulate physiological conditions encountered in neonatal PD.</p><p><strong>Results: </strong>Our experimental evaluations demonstrated that the helical catheter outperforms commonly utilized pigtail catheters with same-sized diameter side ports by consistently achieving superior drainage efficiency during fibrin clot occlusion and omental wrapping tests.</p><p><strong>Conclusion: </strong>The catheter is intended to be placed at the bedside to perform renal replacement therapy for neonates in low-resourced settings.</p>","PeriodicalId":8953,"journal":{"name":"Blood Purification","volume":" ","pages":"167-173"},"PeriodicalIF":2.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11949190/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142920690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Is endovascular arteriovenous fistula a feasible alternative for hemodialysis patients? 血管内动静脉瘘是血液透析患者的可行替代方案吗?
IF 3 3区 医学
Blood Purification Pub Date : 2024-09-12 DOI: 10.1159/000541233
Hugo Vergara-Pérez,Raúl Diaitz-Usetxi Laplaza,Alejandro Pérez Alba,Pablo Baliño Remiro,Asunción Rius Peris,M Ángeles Fenollosa Segarra,Alejandro Tamayo Vasquez,Javier Reque
{"title":"Is endovascular arteriovenous fistula a feasible alternative for hemodialysis patients?","authors":"Hugo Vergara-Pérez,Raúl Diaitz-Usetxi Laplaza,Alejandro Pérez Alba,Pablo Baliño Remiro,Asunción Rius Peris,M Ángeles Fenollosa Segarra,Alejandro Tamayo Vasquez,Javier Reque","doi":"10.1159/000541233","DOIUrl":"https://doi.org/10.1159/000541233","url":null,"abstract":"INTRODUCTIONFor hemodialysis (HD) patients, the selection of vascular access (VA) is a crucial factor that significantly affects morbidity and mortality. Historically, native Arteriovenous Fistulas (AVFs) have been established using surgical techniques. However, devices facilitating percutaneous endovascular arteriovenous fistula formation have recently been introduced in clinical practice, showing promising initial evidence. The primary objectives were technical success, efficacy, and cannulation rates. The secondary objectives included primary and cumulative patency, safety, and the number of procedures required to maintain fistula patency.METHODSA prospective, single-center, single-arm study that included all patients who underwent endovascular arteriovenous fistulas (endoAVF) creation using the WavelinQ™ EndoAVF System at a University Hospital between December 2021 and August 2023.RESULTSA total of 20 patients who underwent an endoAVF were included. Technical success was 100%. 75% (15) of the endoAVFs met the criteria for physiological suitability. The cannulation rate was 66% (10/15) for endoAVFs that reached physiological suitability. At 6 months of follow-up, the primary and cumulative patency rates were 65% and 75%, respectively; at 12 months, these were 50% and 70%, respectively. Serious adverse events were not observed. The reintervention rate was 0.33 procedures/patient-year.CONCLUSIONBased on our experience, creating AVFs using the WavelinQ 4-F EndoAVF system is safe and effective, with high technical success rates and acceptable patency and reintervention rates.","PeriodicalId":8953,"journal":{"name":"Blood Purification","volume":"1 1","pages":"1-15"},"PeriodicalIF":3.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142260782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Association of hypophosphatemia during continuous kidney replacement therapy and clinical outcomes: a systematic review and meta-analysis. 持续肾脏替代治疗期间低磷血症与临床结果的关系:系统回顾和荟萃分析。
IF 3 3区 医学
Blood Purification Pub Date : 2024-09-12 DOI: 10.1159/000541423
Lu Jin,Peiyun Li,Qing Xv,Linshen Xie,Ling Zhang
{"title":"Association of hypophosphatemia during continuous kidney replacement therapy and clinical outcomes: a systematic review and meta-analysis.","authors":"Lu Jin,Peiyun Li,Qing Xv,Linshen Xie,Ling Zhang","doi":"10.1159/000541423","DOIUrl":"https://doi.org/10.1159/000541423","url":null,"abstract":"INTRODUCTIONHypophosphatemia is a common and potentially severe complication of continuous kidney replacement therapy (CKRT), but the evidence on the correlation between hypophosphatemia occurring during CKRT and clinical outcomes remains limited.METHODSElectronic databases (PubMed, Embase, Web of Science, and the Cochrane database) were searched from inception to March 1, 2024. All possible studies that examined the following outcomes were included: all-cause mortality, mechanical ventilation, intensive care unit (ICU) stay, and CKRT duration.RESULTSA total of 8,631 patients from eight cohort studies were included. There was no statistical association between hypophosphatemia during CKRT and all-cause mortality in critically ill patients (OR 0.82, 95% CI 0.57-1.18, P =0.28, I2 = 83%). However, hypophosphatemia was associated with longer duration of mechanical ventilation (WMD 80.30h, 95% CI 31.37-129.22, P =0.001, I2 = 60%). Furthermore, a longer length of ICU stay (WMD 2.76d, 95% CI 2.50-3.02, P &lt;0.00001, I2 = 36%) and CKRT duration (WMD 51.51h, 95% CI 2.69-100.34, P =0.04, I2 = 96%) were observed in patients with hypophosphatemia.CONCLUSIONSThe association between hypophosphatemia and mortality in patients receiving CKRT was insufficient. However, hypophosphatemia during CKRT might be associated with adverse clinical outcomes for critically ill patients.","PeriodicalId":8953,"journal":{"name":"Blood Purification","volume":"47 1","pages":"1-18"},"PeriodicalIF":3.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142260783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Retraction Statement. 勘误。
IF 3 3区 医学
Blood Purification Pub Date : 2024-02-12 DOI: 10.1159/000537697
{"title":"Retraction Statement.","authors":"","doi":"10.1159/000537697","DOIUrl":"10.1159/000537697","url":null,"abstract":"","PeriodicalId":8953,"journal":{"name":"Blood Purification","volume":" ","pages":"1"},"PeriodicalIF":3.0,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139721480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Human Proenkephalin A 119-159 (penKid) in Extracorporeal Therapies: Ex vivo Sieving Coefficient, Diffusive Clearance, and Hemoadsorption Kinetics. 体外疗法中的人原脑啡肽 A 119-159 (PenKid):体外筛分系数、扩散清除率和血液吸收动力学。
IF 2.2 3区 医学
Blood Purification Pub Date : 2024-01-01 Epub Date: 2024-07-26 DOI: 10.1159/000540061
Anna Lorenzin, Massimo de Cal, Natascha Perin, Niccolò Morisi, Alessandra Brendolan, Paolo Lentini, Monica Zanella, Claudio Ronco
{"title":"Human Proenkephalin A 119-159 (penKid) in Extracorporeal Therapies: Ex vivo Sieving Coefficient, Diffusive Clearance, and Hemoadsorption Kinetics.","authors":"Anna Lorenzin, Massimo de Cal, Natascha Perin, Niccolò Morisi, Alessandra Brendolan, Paolo Lentini, Monica Zanella, Claudio Ronco","doi":"10.1159/000540061","DOIUrl":"10.1159/000540061","url":null,"abstract":"<p><strong>Introduction: </strong>Enkephalins, endogenous opioid peptides, are involved in the regulation of renal function. One derived molecule, proenkephalin A, also known as penKid, has been demonstrated to be a reliable biomarker for kidney function and its plasma concentration correlates with measured glomerular filtration rate. penKid is used for prediction and diagnosis of AKI and need of renal replacement therapy (RRT). penKid has also been used to predict the successful weaning from RRT in patients with AKI. Whether the concentration of penKid is affected or not by RRT is a controversial point and there are no studies describing the kinetics of the molecule in such conditions. The low molecular weight (4.5 kDa) would imply free removal by the glomerulus and the dialysis membranes. During RRT, this reduction could not be detected in clinical practice due to the complex kinetics involving either low dialytic clearance or increased production in response to impaired kidney function. The aim of this study was to determine the sieving coefficient and the diffusive clearance of the penKid molecule in conditions of in vitro continuous veno-venous hemofiltration (CVVH) and continuous veno-venous hemodialysis (CVVHD), respectively, and also the penKid removal ratio in conditions of in vitro hemoadsorption (HA) using a synthetic microporous resin.</p><p><strong>Methods: </strong>Blood spiked with a lyophilized penKid peptide solved in 20 m<sc>m</sc> dipotassium phosphate and 6 m<sc>m</sc> disodium EDTA [pH 8] to reach target concentrations is used as testing solution. In each experiment, the blood batch was adjusted at a volume of 1,000 mL, maintained at 37°, and continuously stirred. Samples were collected from blood, ultrafiltrate, and spent dialysate at different times during the experiments. Sieving, clearance, and removal ratio were calculated.</p><p><strong>Results: </strong>Significant removal of penKid was observed in CVVH (sieving 1.04 ± 0.27), in CVVHD (clearance 23.08 ± 0.89), and in HA (removal ratio 76.1 ± 1% after 120 min).</p><p><strong>Conclusion: </strong>penKid is effectively removed by extracorporeal therapies. In presence of anuria, penKid generation kinetics can be calculated based on extracorporeal removal and volume variation. In steady state conditions, declining values may be the result of an initial renal function recovery and may suggest discontinuation and successful liberation from RRT.</p>","PeriodicalId":8953,"journal":{"name":"Blood Purification","volume":" ","pages":"773-780"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141787241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Construction of Risk-Prediction Models for Autogenous Arteriovenous Fistula Thrombosis in Patients on Maintenance Hemodialysis. 构建维持性血液透析患者自体动静脉瘘血栓形成的风险预测模型。
IF 2.2 3区 医学
Blood Purification Pub Date : 2024-01-01 Epub Date: 2024-08-01 DOI: 10.1159/000540543
Xiaoyu Jin, Yuying Fan, Jingshu Li, Xiaona Qi, Xue Li, Hongyi Li
{"title":"Construction of Risk-Prediction Models for Autogenous Arteriovenous Fistula Thrombosis in Patients on Maintenance Hemodialysis.","authors":"Xiaoyu Jin, Yuying Fan, Jingshu Li, Xiaona Qi, Xue Li, Hongyi Li","doi":"10.1159/000540543","DOIUrl":"10.1159/000540543","url":null,"abstract":"<p><strong>Introduction: </strong>Autogenous arteriovenous fistula (AVF) is the preferred vascular access in patients undergoing maintenance hemodialysis (MHD). However, complications such as thrombosis may occur. This study aimed to construct and validate a machine learning-based risk-prediction model for AVF thrombosis, hypothesizing that such a model can effectively predict occurrences, providing a foundation for early clinical intervention.</p><p><strong>Methods: </strong>The retrospective longitudinal study included a total of 270 patients who underwent MHD at the Hemodialysis Center of the Second Affiliated Hospital of Harbin Medical University between March 2021 and December 2022. During this study, baseline data and scale information of patients between March 2020 and December 2021 were collected. We recorded outcome indicators between March 2021 and December 2022 for subsequent analyses. Five machine learning models were developed (artificial neural network, logistic regression, ridge classification, random forest, and adaptive boosting). The sensitivity (recall), specificity, accuracy, and precision of each model were evaluated. The effect size of each variable was analyzed and ranked. Models were assessed using the area under the receiver-operating characteristic (AUROC) curve.</p><p><strong>Results: </strong>Among the 270 included patients, 105 had AVF thrombosis (55 male and 50 female patients; age range, 29-79 years; mean age, 56.72 years; standard deviation [SDs], ±13.10 years). Conversely, 165 patients did not have AVF thrombosis (99 male and 66 female patients; age range, 23-79 years; mean age, 53.58 years; SD, ± 13.33 years). During the observation period, approximately 52.6% of patients with AVF experienced long-term complications. The most common complications associated with AVF were thrombosis (105; 38.9%), aneurysm formation (27; 10%), and excessively high output flow (10; 3.7%). Fifty-four (20%) patients with AVF required intervention because of complications associated with vascular access. The AUROC curve of the testing set was between 0.858 and 0.903.</p><p><strong>Conclusion: </strong>In this study, we developed five machine learning models to predict the risk of AVF thrombosis, providing a reference for early clinical intervention.</p>","PeriodicalId":8953,"journal":{"name":"Blood Purification","volume":" ","pages":"813-823"},"PeriodicalIF":2.2,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141874076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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