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Li Y, Cao C, Huang L, Xiong H, Mao H, Yin Q, Luo X. "Awake" Extracorporeal Membrane Oxygenation Combined With Continuous Renal Replacement Therapy For the Treatment of Severe Chemical Gas Inhalation Lung Injury. J Burn Care Res 2021; 41:908-912. [PMID: 32193543 DOI: 10.1093/jbcr/iraa043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Lung injury caused by chemical gas inhalation is a common clinically severe disease that very easily progresses to acute respiratory distress syndrome (ARDS). Traditional respiratory support consists mainly of mechanical ventilation, but the prognosis of this condition is still poor. "Awake" extracorporeal membrane oxygenation (ECMO) maintains oxygenation, improves ventilation, adequately allows the injured lungs to rest, and avoids complications associated with sedation, intubation, and mechanical ventilation. Continuous renal replacement therapy (CRRT) can provide better fluid management and reduce pulmonary edema. Herein, we describe the case of a patient with severe chemical gas inhalation lung injury who failed to respond to traditional mechanical ventilation and was subsequently treated with awake ECMO combined with CRRT.
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Affiliation(s)
- Yang Li
- Department of Emergency Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - ChunShui Cao
- Department of Emergency Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Liang Huang
- Department of Emergency Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - HuaWei Xiong
- Department of Emergency Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - HongTao Mao
- Department of Emergency Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Qin Yin
- Department of Emergency Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - XiaoLong Luo
- Department of Emergency Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
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Xiao M, Liu B, Zhou M, Wang D, Chen L. Evaluation of the timing of initiating continuous renal replacement therapy in community-acquired septic patients with acute kidney injury. CHINESE J PHYSIOL 2021; 64:135-141. [PMID: 34169919 DOI: 10.4103/cjp.cjp_16_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Acute kidney injury (AKI) in community-acquired septic patients is often associated with relatively high mortality rate. However, the appropriate timing for continuous renal replacement therapy (CRRT) initiation remains controversial. In the present study, we retrospectively analyzed 123 community-acquired septic patients with AKI admitted to the medical intensive care unit (ICU). The baseline patient characteristics and renal function parameters were compared between survivors and non-survivors. Then, we used the Cox proportional hazard analysis to identify the risk factors for ICU mortality. Moreover, we employed the area under the receiver operating characteristic curve analysis to determine the cutoff time for CRRT initiation. Finally, we used the cutoff time to separate the patients into early (treatment initiated earlier than the cutoff time) and late (treatment initiated later than the cutoff time) CRRT groups and performed the Kaplan-Meier survival analysis to assess the overall mortalities. At the time of ICU release, the mortality rate of the 123 patients was 48.8% (n = 60). We identified several baseline characteristics and renal function parameters that were significantly different between the survivors and the non-survivors. All of them were also identified as the risk factors for community-acquired sepsis. Importantly, the cutoff time point to distinguish the early and late CRRT initiation groups was determined to be 16 h after AKI onset. Based on such grouping, the mortality rate was significantly lower in the early CRRT initiation group at 30, 60 and 90 days. Our data suggest that initiating CRRT within 16 h may help improve the mortality rate of community-acquired septic patients.
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Affiliation(s)
- Min Xiao
- Department of Intensive Care Unit, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Bingqi Liu
- Department of Intensive Care Unit, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Mao Zhou
- Department of Intensive Care Unit, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Daqing Wang
- Department of Intensive Care Unit, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Li Chen
- Department of Intensive Care Unit, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
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Cruz MD, Ershad M, Mostafa A. Metabolic Acidosis and Hyperlactatemia Requiring Continuous Venovenous Hemofiltration after Intentional Ingestion of Metformin. Indian J Nephrol 2021; 31:77-78. [PMID: 33994697 PMCID: PMC8101673 DOI: 10.4103/ijn.ijn_117_19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 05/29/2019] [Accepted: 05/25/2020] [Indexed: 11/26/2022] Open
Affiliation(s)
- Maricel Dela Cruz
- Department of Emergency Medicine, Division of Medical Toxicology, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Muhammed Ershad
- Department of Emergency Medicine, Division of Medical Toxicology, Drexel University College of Medicine, Philadelphia, PA, USA
| | - Ahmed Mostafa
- Department of Emergency Medicine, Division of Medical Toxicology, Drexel University College of Medicine, Philadelphia, PA, USA
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Shum HP, Chan KC, Tam CWY, Yan WW, Chan TM. Impact of renal replacement therapy on survival in patients with KDIGO stage 3 acute kidney injury: A propensity score matched analysis. Nephrology (Carlton) 2019; 23:1081-1089. [PMID: 28898482 DOI: 10.1111/nep.13164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/05/2017] [Indexed: 11/30/2022]
Abstract
AIM To investigate the impact of renal replacement therapy (RRT) on 90-day mortality in critically ill patients suffering from KDIGO stage 3 acute kidney injury (AKI) with or without life-threatening complications using propensity score matching analysis. METHODS We conducted a retrospective analysis of critically ill adult patients with KDIGO Stage 3 AKI with or without RRT during ICU stay between 1/1/2011-31/12/2013. Cox regression analysis and propensity score matching methods were used to determine predictors for 90-day mortality. RESULTS Among 661 patients, 50.5% received RRT. The unadjusted 90-day mortality rate was 42.5% and 54.1% in patients who had or had not received RRT, respectively. After adjustment with propensity score based on the probability of receiving RRT, the cox regression analysis showed that RRT was associated with a lower 90-day mortality (p<0.001). Among 322 propensity-matched pairs, RRT was associated with lower ICU (23.6% vs. 39.8%, p=0.002), hospital (33.5% vs. 55.9%, p<0.001) and 90-day mortality (34.2% vs. 58.4%, p<0.001), and a higher 90-day renal recovery rate (57.8% vs. 45.3% full recovery, p=0.026) compared with no RRT. When an alternate propensity model was used, the benefits associated with RRT were very similar, except 90-day renal recovery became insignificant. CONCLUSION Our observational study found that in critically ill patients with KDIGO Stage 3 AKI, RRT may be associated with lower 90-day mortality. The benefit of RRT on renal recovery was less prominent. Medical futility and practice variations may complicate study interpretation. To avoid these limitations, large-scale multicenter, non-observational study is recommended.
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Affiliation(s)
- Hoi-Ping Shum
- Department of Intensive Care, Pamela Youde Nethersole Eastern Hospital, Hong Kong, China
| | - King-Chung Chan
- Department of Anesthesia and Intensive Care, TuenMun Hospital, Hong Kong, China
| | - Catherine W-Y Tam
- Department of Intensive Care, Pamela Youde Nethersole Eastern Hospital, Hong Kong, China
| | - Wing-Wa Yan
- Department of Intensive Care, Pamela Youde Nethersole Eastern Hospital, Hong Kong, China
| | - Tak-Mao Chan
- Department of Medicine, The University of Hong Kong, Queen Mary Hospital, Hong Kong, China
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Akiu M, Yamamoto T, Miyazaki M, Watanabe K, Fujikura E, Nakayama M, Sato H, Ito S. Using Sepsis-3 criteria to predict prognosis of patients receiving continuous renal replacement therapy for community-acquired sepsis: a retrospective observational study. RENAL REPLACEMENT THERAPY 2018. [DOI: 10.1186/s41100-018-0182-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Factors Associated with Early Mortality in Critically Ill Patients Following the Initiation of Continuous Renal Replacement Therapy. J Clin Med 2018; 7:jcm7100334. [PMID: 30297660 PMCID: PMC6210947 DOI: 10.3390/jcm7100334] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 09/30/2018] [Accepted: 10/05/2018] [Indexed: 01/11/2023] Open
Abstract
Continuous renal replacement therapy (CRRT) is an important modality to support critically ill patients, and the need for CRRT treatment has been increasing. However, CRRT management is costly, and the associated resources are limited. Thus, it remains challenging to identify patients that are likely to have a poor outcome, despite active treatment with CRRT. We sought to elucidate the factors associated with early mortality after CRRT initiation. We analyzed 240 patients who initiated CRRT at an academic medical center between September 2016 and January 2018. We compared baseline characteristics between patients who died within seven days of initiating CRRT (early mortality), and those that survived more than seven days beyond the initiation of CRRT. Of the patients assessed, 130 (54.2%) died within seven days of CRRT initiation. Multivariate logistic regression models revealed that low mean arterial pressure, low arterial pH, and high Sequential Organ Failure Assessment score before CRRT initiation were significantly associated with increased early mortality in patients requiring CRRT. In conclusion, the mortality within seven days following CRRT initiation was very high in this study. We identified several factors that are associated with early mortality in patients undergoing CRRT, which may be useful in predicting early outcomes, despite active treatment with CRRT.
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Sethi SK, Krishnappa V, Nangethu N, Nemer P, Frazee LA, Raina R. Antibiotic Dosing in Sustained Low-Efficiency Dialysis in Critically Ill Patients. Can J Kidney Health Dis 2018; 5:2054358118792229. [PMID: 30116545 PMCID: PMC6088477 DOI: 10.1177/2054358118792229] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 06/14/2018] [Indexed: 11/16/2022] Open
Abstract
Purpose of review Sustained low-efficiency dialysis (SLED) is increasingly used as a renal replacement modality in critically ill patients with acute kidney injury (AKI) and hemodynamic instability. There is, therefore, a greater need for the understanding of the antibiotic dosage and pharmacokinetics in these patients, to provide them with optimal therapy. Sources of information PubMed/Medline, Embase, and Google Scholar. Methods PubMed/Medline, Embase, and Google Scholar databases were searched using a combination of key words: dialysis, end stage renal disease, renal failure, sustained low efficiency dialysis, extended daily dialysis, prolonged intermittent renal replacement therapy (PIRRT), and antibiotic dosing. Studies that investigated antibiotic dosing and pharmacokinetics during SLED/extended daily dialysis/PIRRT were selected for this review. Key findings Eleven studies met inclusion criteria and selected for data extraction. The data with regard to dialysis specifications, type of antibiotic including dosages, drug clearances, and dosage recommendations are summarized in Table 1. It is a challenge to find therapeutic doses for antibiotics during SLED therapy because, in general, only aminoglycosides and vancomycin can be assayed in clinical laboratories. Limitations Although current studies on antibiotic dosing in SLED are limited due to diverse and undersized patient populations, antibiotic dosage adjustments for patients receiving SLED discussed here will serve as a valuable guide. Future large-scale research should focus on establishing guidelines for antibiotic dosage in SLED. Implications Pharmacokinetic principles should be taken into consideration for the appropriate dosing of drugs during SLED, yet it is vital to monitor response to drug to make sure therapeutic goals are achieved. Antibiotic dosing and timing relative to the initiation of SLED may be important to maximize either the time above the minimum inhibitory concentration (MIC) (time-dependent) or the peak to MIC ratio (concentration-dependent), balancing efficacy and toxicity concerns. Critical care physicians should liaise with nephrologists to make decisions regarding appropriate antibiotic dosing in patients undergoing SLED.
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Affiliation(s)
- Sidharth Kumar Sethi
- Pediatric Nephrology, Kidney Institute, Medanta the Medicity, Gurgaon, Haryana, India
| | - Vinod Krishnappa
- Cleveland Clinic Akron General/Akron Nephrology Associates, OH, USA.,Northeast Ohio Medical University, Rootstown, OH, USA
| | - Nisha Nangethu
- Cleveland Clinic Akron General/Akron Nephrology Associates, OH, USA
| | - Paul Nemer
- Cleveland Clinic Akron General/Akron Nephrology Associates, OH, USA
| | | | - Rupesh Raina
- Cleveland Clinic Akron General/Akron Nephrology Associates, OH, USA.,Department of Nephrology, Cleveland Clinic Akron General and Akron Children's Hospital, OH, USA
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Sinha R, Sethi SK, Bunchman T, Lobo V, Raina R. Prolonged intermittent renal replacement therapy in children. Pediatr Nephrol 2018; 33:1283-1296. [PMID: 28721515 DOI: 10.1007/s00467-017-3732-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 05/22/2017] [Accepted: 05/31/2017] [Indexed: 12/15/2022]
Abstract
Wide ranges of age and weight in pediatric patients makes renal replacement therapy (RRT) in acute kidney injury (AKI) challenging, particularly in the pediatric intensive care unit (PICU), wherein children are often hemodynamically unstable. Standard hemodialysis (HD) is difficult in this group of children and continuous veno-venous hemofiltration/dialysis (CVVH/D) has been the accepted modality in the developed world. Unfortunately, due to cost constraints, CVVH/D is often not available and peritoneal dialysis (PD) remains the common mode of RRT in resource-poor facilities. Acute PD has its drawbacks, and intermittent HD (IHD) done slowly over a prolonged period has been explored as an alternative. Various modes of slow sustained IHD have been described in the literature with the recently introduced term prolonged intermittent RRT (PIRRT) serving as an umbrella terminology for all of these modes. PIRRT has been widely accepted in adults with studies showing it to be as effective as CVVH/D but with an added advantage of being more cost-effective. Pediatric data, though scanty, has been promising. In this current review, we elaborate on the practical aspects of undertaking PIRRT in children as well as summarize its current status.
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Affiliation(s)
- Rajiv Sinha
- Institute of Child Health and AMRI Hospital, 37, G Bondel Road, Kolkata, West Bengal, 700019, India.
| | - Sidharth Kumar Sethi
- Pediatric Nephrology, Kidney Institute, Medanta, The Medicity, Gurgaon, Haryana, India
| | - Timothy Bunchman
- Pediatric Nephrology, Children's Hospital of Richmond at VCU, Richmond, VA, USA
| | - Valentine Lobo
- Department of Nephrology, KEM Hospital, Pune, Maharashtra, India
| | - Rupesh Raina
- Pediatric Nephrology, Akron Children's Hospital, Cleveland, OH, USA
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Sethi SK, Bansal SB, Khare A, Dhaliwal M, Raghunathan V, Wadhwani N, Nandwani A, Yadav DK, Mahapatra AK, Raina R. Heparin free dialysis in critically sick children using sustained low efficiency dialysis (SLEDD-f): A new hybrid therapy for dialysis in developing world. PLoS One 2018; 13:e0195536. [PMID: 29698409 PMCID: PMC5919674 DOI: 10.1371/journal.pone.0195536] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 03/23/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND In critically sick adults, sustained low efficiency dialysis [SLED] appears to be better tolerated hemodynamically and outcomes seem to be comparable to CRRT. However, there is paucity of data in critically sick children. In children, two recent studies from Taiwan (n = 11) and India (n = 68) showed benefits of SLED in critically sick children. AIMS AND OBJECTIVES The objective of the study was to look at the feasibility and tolerability of sustained low efficiency daily dialysis-filtration [SLEDD-f] in critically sick pediatric patients. MATERIAL AND METHODS Design: Retrospective study Inclusion criteria: All pediatric patients who had undergone heparin free SLEDD-f from January 2012 to October 2017. Measurements: Data collected included demographic details, vital signs, PRISM III at admission, ventilator parameters (where applicable), number of inotropes, blood gas and electrolytes before, during, and on conclusion of SLED therapy. Technical information was gathered regarding SLEDD-f prescription and complications. RESULTS Between 2012-2017, a total of 242 sessions of SLEDD-f were performed on 70 patients, out of which 40 children survived. The median age of patients in years was 12 (range 0.8-17 years), and the median weight was 39 kg (range 8.5-66 kg). The mean PRISM score at admission was 8.77±7.22. SLEDD-f sessions were well tolerated, with marked improvement in fluid status and acidosis. Premature terminations had to be done in 23 (9.5%) of the sessions. There were 21 sessions (8.6%) terminated due to hypotension and 2 sessions (0.8%) terminated due to circuit clotting. Post- SLEDD-f hypocalcemia occurred in 15 sessions (6.2%), post- SLEDD-f hypophosphatemia occurred in 1 session (0.4%), and post- SLEDD-f hypokalemia occurred in 17 sessions (7.0%). CONCLUSIONS This study is the largest compiled data on pediatric SLEDD-f use in critically ill patients. Our study confirms the feasibility of heparin free SLEDD-f in a larger pediatric population, and even in children weighing <20 kg on inotropic support.
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Affiliation(s)
| | - Shyam B. Bansal
- Kidney Institute, Medanta, The Medicity, Gurgaon, Haryana, India
| | - Anshika Khare
- Northeast Ohio Medical University, Rootstown, Ohio, United States of America
| | - Maninder Dhaliwal
- Pediatric Critical Care, Medanta, The Medicity, Gurgaon, Haryana, India
| | - Veena Raghunathan
- Pediatric Critical Care, Medanta, The Medicity, Gurgaon, Haryana, India
| | - Nikita Wadhwani
- Kidney Institute, Medanta, The Medicity, Gurgaon, Haryana, India
| | - Ashish Nandwani
- Kidney Institute, Medanta, The Medicity, Gurgaon, Haryana, India
| | | | | | - Rupesh Raina
- Pediatric Nephrology, Akron Children’s Hospital, Akron, Ohio, United States of America
- * E-mail:
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Vitin AA, Azamfirei L, Tomescu D, Lang JD. Perioperative Management of Lactic Acidosis in End-Stage Liver Disease Patient. ACTA ACUST UNITED AC 2017; 3:55-62. [PMID: 29967872 PMCID: PMC5769918 DOI: 10.1515/jccm-2017-0014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 04/28/2017] [Indexed: 12/13/2022]
Abstract
Lactic acidosis (LA) in end-stage liver disease (ESLD) patients has been recognized as one of the most complicated clinical problems and is associated with increased morbidity and mortality. Multiple-organ failure, associated with advanced stages of cirrhosis, exacerbates dysfunction of numerous parts of lactate metabolism cycle, which manifests as increased lactate production and impaired clearance, leading to severe LA-induced acidemia. These problems become especially prominent in ESLD patients, that undergo partial hepatectomy and, particularly, liver transplantation. Perioperative management of LA and associated severe acidemia is an inseparable part of anesthesia, post-operative and critical care for this category of patients, presenting a wide variety of challenges. In this review, lactic acidosis applied pathophysiology, clinical implications for ESLD patients, diagnosis, role of intraoperative factors, such as anesthesia and surgery-related, vasoactive agents impact, and also current treatment options and modalities have been discussed.
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Affiliation(s)
- Alexander A Vitin
- Department of Anesthesiology & Pain, Medicine University of Washington Medical Center, Seattle WA, USA
| | - Leonard Azamfirei
- University of Medicine and Pharmacy of Tîrgu Mureş, Tîrgu Mureş, Romania
| | - Dana Tomescu
- "Carol Davila" University of Medicine and Pharmacy, Anesthesiology and Intensive Care Department 3, Fundeni Clinical Institute, Bucharest, Romania
| | - John D Lang
- Department of Anesthesiology & Pain, Medicine University of Washington Medical Center, Seattle WA, USA
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Cheungpasitporn W, Zand L, Dillon JJ, Qian Q, Leung N. Lactate clearance and metabolic aspects of continuous high-volume hemofiltration. Clin Kidney J 2015; 8:374-7. [PMID: 26251702 PMCID: PMC4515900 DOI: 10.1093/ckj/sfv045] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 05/18/2015] [Accepted: 05/19/2015] [Indexed: 11/12/2022] Open
Abstract
Lactic acidosis is associated with high morbidity and mortality in hospitalized patients. Treatment of lactic acidosis is targeted on correcting the underlying causes and optimizing adequate oxygen delivery to the tissues. Even though evidence is lacking, continuous renal replacement therapy (CRRT) and dialysis have been advocated as treatments for lactic acidosis. We report a 28-year-old Caucasian male with a history of hemophagocytic lymphohistiocytosis who presented with septic shock, severe lactic acidosis and multiple organ failure. Metabolic acidosis was corrected after bicarbonate therapy and CRRT with a hemofiltration rate of 7 L/h (58 mL/kg/h). Lactate clearance was calculated to be 79 mL/min. Compared with reported rates of lactate overproduction in septic shock, the rate of lactate clearance is quite small. Our case suggests that CRRT with high-volume hemofiltration is not effective for severe lactic acidosis. Lactic acidosis alone should not be considered as a nonrenal indication for CRRT.
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Affiliation(s)
| | - Ladan Zand
- Division of Nephrology and Hypertension , Mayo Clinic , Rochester, MN , USA
| | - John J Dillon
- Division of Nephrology and Hypertension , Mayo Clinic , Rochester, MN , USA
| | - Qi Qian
- Division of Nephrology and Hypertension , Mayo Clinic , Rochester, MN , USA
| | - Nelson Leung
- Division of Nephrology and Hypertension , Mayo Clinic , Rochester, MN , USA ; Division of Hematology , Mayo Clinic , Rochester, MN , USA
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Early initiation of continuous renal replacement therapy improves clinical outcomes in patients with acute respiratory distress syndrome. Am J Med Sci 2015; 349:199-205. [PMID: 25494217 DOI: 10.1097/maj.0000000000000379] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND The acute respiratory distress syndrome (ARDS) is a common devastating syndrome in intensive care unit in critically ill patients. Continuous renal replacement therapy (CRRT) has been shown beneficial effects on oxygenation and survival in patients with ARDS. However, it is still controversial about the timing of initiation of CRRT. METHODS Fifty-three patients with ARDS admitted to intensive care unit in Zhejiang Provincial People's Hospital, China from 2009 to 2013 were enrolled in the study. The authors compared ventilation parameter, including PaO2/FIO2, A-a gradient, positive end-expiratory pressure, plateau pressure, dynamic compliance and hemodynamic parameters, including central venous pressure, mean arterial pressure, cardiac index, extravascular lung water index, fluid balance between early initiation (within 12 hours after ARDS onset) and late initiation of CRRT (48 hours after ARDS onset) groups. The authors further investigated transforming growth factor (TGF)-β1 level changes in serum and bronchoalveolar lavage fluid (BALF) by enzyme-linked immunosorbent assay during 7 days of follow-up. RESULTS Significant improvement of oxygenation and shorter duration of mechanical ventilation were observed in early CRRT group during 7-day follow-up. In addition, TGF-β1 concentrations in serum and BALF were significantly decreased in patients with early initiation of CRRT compared to those with late initiation of CRRT on day 2 and day 7. Furthermore, patients who died of ARDS had higher levels of TGF-β1 in BALF than survivors. CONCLUSIONS Our findings showed that early initiation of CRRT is associated with favorable clinical outcomes in ARDS patients, which might be due to the reduced serum and BALF TGF-β1 levels through CRRT. However, large multi-center studies are needed to make further recommendations as to the optimal use of CRRT in ARDS patient populations.
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Macaluso A, Genova S, Maringhini S, Coffaro G, Ziino O, D'Angelo P. Acute respiratory distress syndrome associated with tumor lysis syndrome in a child with acute lymphoblastic leukemia. Pediatr Rep 2015; 7:5760. [PMID: 25918625 PMCID: PMC4387330 DOI: 10.4081/pr.2015.5760] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Revised: 01/24/2015] [Accepted: 01/24/2015] [Indexed: 11/23/2022] Open
Abstract
Tumor lysis syndrome is a serious and dangerous complication usually associated with antiblastic treatment in some malignancies characterized by high cell turn-over. Mild or severe electrolyte abnormalities including high serum levels of uric acid, potassium, phosphorus, creatinine, bun and reduction of calcium can be responsible for multi-organ failure, involving mostly kidneys, heart and central nervous system. Renal damage can be followed by acute renal failure, weight gain, progressive liver impairment, overproduction of cytokines, and subsequent maintenance of multi-organ damage. Life-threatening acute respiratory failure associated with tumor lysis syndrome is rare. We describe a child with T-cell acute lymphoblastic leukemia, who developed an unusually dramatic tumor lysis syndrome, after administration of the first low doses of steroid, that was rapidly associated with severe acute respiratory distress syndrome. Subsequent clinical course and treatment modalities that resulted in the gradual and full recovery of the child are also described.
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Affiliation(s)
- Alessandra Macaluso
- Pediatric Department and Postgraduate School, University of Palermo ; Palermo, Italy
| | - Selene Genova
- Pediatric Department and Postgraduate School, University of Palermo ; Palermo, Italy
| | - Silvio Maringhini
- Pediatric Nephrology Unit, G. Di Cristina Children's Hospital , Palermo
| | - Giancarlo Coffaro
- Pediatric Intensive Care Unit, G. Di Cristina Children's Hospital , Palermo
| | - Ottavio Ziino
- Pediatric Hematology and Oncology Unit, A.R.N.A.S. Civico, Di Cristina and Benfratelli Hospital , Palermo, Italy
| | - Paolo D'Angelo
- Pediatric Hematology and Oncology Unit, A.R.N.A.S. Civico, Di Cristina and Benfratelli Hospital , Palermo, Italy
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14
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Bakker OJ, Issa Y, van Santvoort HC, Besselink MG, Schepers NJ, Bruno MJ, Boermeester MA, Gooszen HG. Treatment options for acute pancreatitis. Nat Rev Gastroenterol Hepatol 2014; 11:462-9. [PMID: 24662281 DOI: 10.1038/nrgastro.2014.39] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This Review covers the latest developments in the treatment of acute pancreatitis. The Atlanta Classification of acute pancreatitis has been revised, proposing several new terms and abandoning some of the old and confusing terminology. The 2012 Revised Atlanta Classification and the determinant-based classification aim to universally define the different local and systemic complications and predict outcome. The most important differences between these classifications are discussed. Several promising treatment options for the early management of acute pancreatitis have been tested, including the use of enteral nutrition and antibiotics as well as novel therapies such as haemofiltration and protease inhibitors. The results are summarized and the quality of evidence is discussed. Finally, new developments in the management of patients with infected pancreatic necrosis are addressed, including the use of the 'step-up approach' and results of minimally invasive necrosectomy.
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Affiliation(s)
- Olaf J Bakker
- Department of Surgery, Room G04.228, University Medical Center Utrecht Heidelberglaan 100, PO Box 85500, 3508 GA Utrecht, Netherlands
| | - Yama Issa
- Department of Surgery (Suite G4-136), Academic Medical Center, Meibergdreef 9, 1105 AZ, PO Box 22660, 1100 DD Amsterdam, Netherlands
| | - Hjalmar C van Santvoort
- Department of Surgery, Room G04.228, University Medical Center Utrecht Heidelberglaan 100, PO Box 85500, 3508 GA Utrecht, Netherlands
| | - Marc G Besselink
- Department of Surgery (Suite G4-136), Academic Medical Center, Meibergdreef 9, 1105 AZ, PO Box 22660, 1100 DD Amsterdam, Netherlands
| | - Nicolien J Schepers
- Department of Gastroenterology &Hepatology, Erasmus Medical Center, University Medical Center Rotterdam, 's-Gravendijkwal 230, 3015 CE Rotterdam, Netherlands
| | - Marco J Bruno
- Department of Gastroenterology &Hepatology, Erasmus Medical Center, University Medical Center Rotterdam, 's-Gravendijkwal 230, 3015 CE Rotterdam, Netherlands
| | - Marja A Boermeester
- Department of Surgery (Suite G4-136), Academic Medical Center, Meibergdreef 9, 1105 AZ, PO Box 22660, 1100 DD Amsterdam, Netherlands
| | - Hein G Gooszen
- Department of Operation Rooms/Evidence Based Surgery, Radboud University Medical Centre, Geert Grooteplein zuid 10, PO Box 9101, 6500 HB Nijmegen, Netherlands
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Abstract
BACKGROUND Rhabdomyolysis is a condition that is characterised by the breakdown of skeletal muscle tissue and leakage of intracellular myocyte contents into circulating blood. Rhabdomyolysis can lead to acute kidney injury (AKI) and is a potentially life-threatening condition. Studies have indicated that continuous renal replacement therapy (CRRT) may provide benefits for people with rhabdomyolysis by removing potentially damaging myoglobin and stabilising haemodynamic and metabolic status. OBJECTIVES We aimed to: i) assess the efficacy of CRRT in removing myoglobin; ii) investigate the influence of CRRT on mortality and kidney-related outcomes; and iii) evaluate the safety of CRRT for the treatment of people with rhabdomyolysis. SEARCH METHODS We searched the Cochrane Renal Group's Specialised Register to 6 January 2014 through contact with the Trials' Search Co-ordinator using search terms relevant to this review. We also searched China National Knowledge Infrastructure (from 1 January 1979 to 16 April 2013) and the Chinese Clinical Trials Register (to 16 April 2013). SELECTION CRITERIA All randomised controlled trials (RCTs) and quasi-RCTs that investigated clinical outcomes of CRRT for people with rhabdomyolysis were included. DATA COLLECTION AND ANALYSIS Two authors independently assessed studies for inclusion and extracted data. We derived risk ratios (RR) for dichotomous data and mean differences (MD) for continuous data with 95% confidence intervals (CI). Methodological risk of bias was assessed using the Cochrane risk of bias tool. MAIN RESULTS Of the three included studies (101 participants), one evaluated continuous arteriovenous haemodialysis and two investigated continuous venovenous haemofiltration; all included conventional therapy as control.We found significant decreases in myoglobin in patients among whom CRRT therapy was initiated on days four, eight, and 10 (day 4: MD -11.00 (μg/L), 95% CI -20.65 to -1.35; Day 8: MD -23.00 (μg/L), 95% CI -30.92 to -15.08; day 10: MD -341.87 (μg/L), 95% CI -626.15 to -57.59) compared with those who underwent conventional therapy.Although CRRT was associated with improved serum creatinine, blood urea nitrogen, and potassium levels; reduced duration of the oliguria phase; and was associated with reduced time in hospital, no significant differences were found in mortality rates compared with conventional therapy (RR 0.17, 95% CI 0.02 to 1.37). The included studies did not report on long-term outcomes or prevention of AKI.Overall, we found that study quality was suboptimal: blinding and randomisation allocation were not reported by any of the included studies, leading to the possibility of selection, performance and detection bias. AUTHORS' CONCLUSIONS Although CRRT may provide some benefits for people with rhabdomyolysis, the poor methodological quality of the included studies and lack of data relating to clinically important outcomes limited our findings about the effectiveness of CRRT for people with rhabdomyolysis.There was insufficient evidence to discern any likely benefits of CRRT over conventional therapy for people with rhabdomyolysis and prevention of rhabdomyolysis-induced AKI.
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Affiliation(s)
- Xiaoxi Zeng
- West China Hospital, Sichuan UniversityDepartment of Nephrology37 Guo Xue XiangChengduSichuanChina610041
| | - Ling Zhang
- West China Hospital, Sichuan UniversityDepartment of Nephrology37 Guo Xue XiangChengduSichuanChina610041
| | - Taixiang Wu
- West China Hospital, Sichuan UniversityChinese Clinical Trial Registry, Chinese Ethics Committee of Registering Clinical TrialsNo. 37, Guo Xue XiangChengduSichuanChina610041
| | - Ping Fu
- West China Hospital, Sichuan UniversityDepartment of Nephrology37 Guo Xue XiangChengduSichuanChina610041
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16
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De Corte W, Vuylsteke S, De Waele JJ, Dhondt AW, Decruyenaere J, Vanholder R, Hoste EAJ. Severe lactic acidosis in critically ill patients with acute kidney injury treated with renal replacement therapy. J Crit Care 2014; 29:650-5. [PMID: 24636927 DOI: 10.1016/j.jcrc.2014.02.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 02/19/2014] [Accepted: 02/24/2014] [Indexed: 12/23/2022]
Abstract
PURPOSE Severe lactic acidosis (SLA) is frequent in intensive care unit (ICU) patients with acute kidney injury (AKI) treated with renal replacement therapy (RRT). The aim of the study is to describe the epidemiology of SLA in this setting. MATERIALS AND METHODS An observational single-center cohort analysis was performed on AKI patients treated with RRT. At initiation of RRT, SLA patients (serum lactate concentration>5 mmol/L and pH<7.35) were compared with non-SLA patients. RESULTS Of the 454 patients dialyzed during the study period, 342 patients matched inclusion criteria (116 with and 226 patients without SLA). In SLA patients, lactate stabilized/decreased in 69.7% at 4 hours (P=.001) and in 81.8% during the period of 4 to 24 hours (P<.001) after initiation of RRT. Mortality during this 24-hour period was 31.0%. Intensive care unit mortality was 83.6% compared with 47.3% in non-SLA patients. Initial lactate concentration was not related to ICU mortality in SLA patients. CONCLUSIONS Severe lactic acidosis was frequent in AKI patients treated with RRT. Severe lactic acidosis patients were more severely ill and had higher mortality compared with patients without. During the first 24 hours of RRT, a correction of lactate concentration and acidosis was observed. In SLA patients, lactate concentration at initiation of RRT was not able to discriminate between survivors and nonsurvivors.
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Affiliation(s)
- Wouter De Corte
- Department of Intensive Care Medicine, Ghent University Hospital, Ghent, Belgium; Department of Anaesthesia and Intensive Care Medicine, AZ Groeninge Hospital, Kortrijk, Belgium.
| | - S Vuylsteke
- Department of Paediatric Medicine, Ghent University Hospital, Ghent, Belgium
| | - Jan J De Waele
- Department of Intensive Care Medicine, Ghent University Hospital, Ghent, Belgium
| | | | - Johan Decruyenaere
- Department of Intensive Care Medicine, Ghent University Hospital, Ghent, Belgium
| | | | - Eric A J Hoste
- Department of Intensive Care Medicine, Ghent University Hospital, Ghent, Belgium; Research Foundation Flanders, Belgium
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17
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Improving RhoA-mediated intestinal epithelial permeability by continuous blood purification in patients with severe acute pancreatitis. Int J Artif Organs 2013; 36:812-20. [PMID: 24338656 DOI: 10.5301/ijao.5000256] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2013] [Indexed: 11/20/2022]
Abstract
BACKGROUND Early dysfunction of the intestinal mucosal barrier contributes to increasing intestinal permeability. It may play an important role in the pathophysiology of severe acute pancreatitis (SAP). A rising number of clinical data have showed that continuous blood purification (CBP) may improve the prognosis of SAP. However, the therapeutic effects of CBP on intestinal epithelial permeability have been rarely reported. METHODS Intestinal epithelial monolayer (Caco-2) was incubated with serum samples collected at specific time points from SAP patients during CBP. Changes in intestinal epithelial monolayer permeability and configuration, and levels of cellular tight junction structural proteins including occludin and ZO-1, and RhoA mRNA expression level were recorded, respectively. In addition, serum tumor necrosis factor-alpha (TNF-α) levels at specific time points during CBP were determined. RESULTS Before CBP initiation, intestinal epithelial permeability was increased and tight junction structural protein level was decreased and reorganized, but RhoA mRNA expression and serum TNF-α were increased. However, after CBP treatment, intestinal epithelial permeability was reduced and tight junction protein levels were increased, with reorganization attenuated. Meanwhile, RhoA mRNA expression and serum TNF-α level was decreased. CONCLUSIONS After CBP treatment, intestinal epithelial permeability was reduced by increasing occludin and ZO-1 protein level and attenuating reorganization. This beneficial effect of CBP on intestinal epithelial permeability is associated with down-regulation of RhoA mRNA expression, and it may be related to the removal of TNF-α by CBP.
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18
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Ezgu F, Senaca S, Gunduz M, Tumer L, Hasanoglu A, Tiras U, Unsal R, Bakkaloglu SA. Severe renal tubulopathy in a newborn due to BCS1L gene mutation: Effects of different treatment modalities on the clinical course. Gene 2013; 528:364-6. [DOI: 10.1016/j.gene.2013.07.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Revised: 06/28/2013] [Accepted: 07/01/2013] [Indexed: 11/28/2022]
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Continuous Renal Replacement Therapy (CRRT) Attenuates Myocardial Inflammation and Mitochondrial Injury Induced by Venovenous Extracorporeal Membrane Oxygenation (VV ECMO) in a Healthy Piglet Model. Inflammation 2013; 36:1186-93. [DOI: 10.1007/s10753-013-9654-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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20
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Mu TS, Palmer EG, Batts SG, Lentz-Kapua SL, Uyehara-Lock JH, Uyehara CFT. Continuous renal replacement therapy to reduce inflammation in a piglet hemorrhage-reperfusion extracorporeal membrane oxygenation model. Pediatr Res 2012; 72:249-55. [PMID: 22669297 DOI: 10.1038/pr.2012.69] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND During extracorporeal membrane oxygenation (ECMO), circulation of blood across synthetic surfaces triggers an inflammatory response. Therefore, we evaluated the ability of continuous renal replacement therapy (CRRT) to remove cytokines and reduce the inflammatory response in a piglet hemorrhage-reperfusion ECMO model. METHODS Three groups were studied: (i) uninjured controls (n = 11); (ii) hemorrhage-reperfusion while on venoarterial ECMO (30% hemorrhage with subsequent blood volume replacement within 60 min) (n = 8); (iii) treatment with CRRT after hemorrhage-reperfusion while on ECMO (n = 7). Hemodynamic parameters, oxygen utilization, and plasma and broncho-alveolar lavage (BAL) cytokine levels were recorded and lung tissue samples collected for histologic comparison. RESULTS Whereas mean arterial pressures decreased among hemorrhage-reperfusion piglets, ECMO with CRRT did not significantly alter mean arterial pressures or systemic vascular resistance and was able to maintain blood flow as well as oxygen delivery after hemorrhage-reperfusion. Plasma interleukin (IL)-6 and IL-10, and BAL tumor necrosis factor (TNF)-α, IL-1β, IL-6, IL-8, and IL-10 increased as a result of hemorrhage-reperfusion while on ECMO. After a 6-h period of CRRT, plasma IL-6 and BAL TNF-α, IL-6, and IL-8 levels decreased. CONCLUSION Data suggest CRRT may decrease inflammatory cytokine levels during the initial phase of ECMO therapy following hemorrhage-reperfusion while maintaining cardiac output and oxygen utilization.
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Affiliation(s)
- Thornton S Mu
- Department of Pediatrics, Tripler Army Medical Center, Honolulu, Hawaii, USA.
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21
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Cerdá J, Tolwani AJ, Warnock DG. Critical care nephrology: management of acid–base disorders with CRRT. Kidney Int 2012; 82:9-18. [DOI: 10.1038/ki.2011.243] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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22
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Parikh A, Shaw A. The Economics of Renal Failure and Kidney Disease in Critically Ill Patients. Crit Care Clin 2012; 28:99-111, vii. [DOI: 10.1016/j.ccc.2011.10.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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23
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Continuous blood purification ameliorates RhoA-mediated endothelial permeability in severe acute pancreatitis patients with lung injury. Int J Artif Organs 2011; 34:348-56. [PMID: 21534245 DOI: 10.5301/ijao.2011.7742] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/17/2011] [Indexed: 12/12/2022]
Abstract
BACKGROUND In the early phase of severe acute pancreatitis (SAP), serious pulmonary complications which are directly correlated with mortality are very common. Endothelial injury has been shown to play a key role in the pathogenesis of ALI/ARDS. Continuous blood purification (CBP) has been widely used in treating patients with multiple organ dysfunction syndrome (MODS) including ARDS. However, the impact of CBP on endothelial function has been little studied. METHODS Human umbilical vein endothelial cells (HUVECs) were exposed to serum samples or replacement fluid taken from patients at specific time points during CBP, or pretreated with Y-27632 followed by treatment with serum, then, changes in cytoskeletal configuration, endothelial monolayer permeability, and RhoA activation were studied. RESULTS Endothelial permeability, RhoA activity, and stress fiber reorganization increased in HUVECs treated with serum from patients before CBP initiation, and lessened in HUVECs treated with serum from patients after CBP initiation. Endothelial hyperpermeability and stress fiber reorganization reduced in HUVECs pretreated with Rho-kinase inhibitor, Y-27632, and in a dose-dependent fashion. Endothelial permeability and RhoA activity increased in HUVECs treated with waste replacement fluid collected 2 h after CBP initiation. CONCLUSIONS After CBP treatment, endothelial hyperpermeability induced by serum from SAP patients with lung injury was reduced. The inhibition of RhoA-mediated F-actin remodeling might be the mechanism.
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Zhang W, Shen PY, Chen YX, Zhu P, Shi H, Li X, Xu YW, Ren H, Chen N. Analyzing Chinese patients with post-operative acute kidney injury. Ren Fail 2011; 33:795-800. [PMID: 21810063 DOI: 10.3109/0886022x.2011.601827] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND To investigate clinical characteristics and risk factors of Chinese patients with post-operative acute kidney injury (PO-AKI). METHODS Patients with PO-AKI in Ruijin Hospital from December 1997 to December 2005 were retrospectively studied. RESULTS Patients' mean age was 62.2 ± 18.1 years. There were 111 males and 57 females. The mean serum creatinine at diagnosis was 370.41 ± 320.92 μmol/L and the mean estimated glomerular filtration rate was 33.56 ± 24.24 mL/min. For the outcome of the patients, 38 died and the mortality rate was 22.6%. There were 17 patients (10.1%) with Acute Dialysis Quality Initiative-RIFLE (risk-injury-failure-loss-end classification) phase R, 21 (12.5%) with phase I, and 130 (77.4%) with phase F. There was no significant difference in mortality regarding patients who underwent different types of surgeries. For the risk factors related to PO-AKI, acute tubular necrosis (ATN) increased relative risk of mortality PO-AKI (odds ratio = 7.089, 95% confidence interval = 2.069-24.288, p < 0.001). Multivariate regression models showed that ATN had a positive correlation with mortality of PO-AKI. CONCLUSIONS PO-AKI is one of the most common causes of AKI in patients who underwent operations. Special attention should be paid to risk factors related to PO-AKI in order to improve prognosis.
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Affiliation(s)
- Wen Zhang
- Department of Nephrology, Shanghai Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, PR China
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25
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Su YJ, Chen JB, Chen TC, Chuang FR. Quiz Page November 2010. Am J Kidney Dis 2010; 56:A41-3. [DOI: 10.1053/j.ajkd.2010.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2010] [Accepted: 04/14/2010] [Indexed: 11/11/2022]
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26
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Vitin A, Muczynski K, Bakthavatsalam R, Martay K, Dembo G, Metzner J. Treatment of severe lactic acidosis during the pre-anhepatic stage of liver transplant surgery with intraoperative hemodialysis. J Clin Anesth 2010; 22:466-72. [DOI: 10.1016/j.jclinane.2009.07.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2008] [Revised: 06/23/2009] [Accepted: 07/04/2009] [Indexed: 01/30/2023]
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27
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Sutherland SM, Zappitelli M, Alexander SR, Chua AN, Brophy PD, Bunchman TE, Hackbarth R, Somers MJG, Baum M, Symons JM, Flores FX, Benfield M, Askenazi D, Chand D, Fortenberry JD, Mahan JD, McBryde K, Blowey D, Goldstein SL. Fluid overload and mortality in children receiving continuous renal replacement therapy: the prospective pediatric continuous renal replacement therapy registry. Am J Kidney Dis 2009; 55:316-25. [PMID: 20042260 DOI: 10.1053/j.ajkd.2009.10.048] [Citation(s) in RCA: 418] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2009] [Accepted: 10/30/2009] [Indexed: 12/15/2022]
Abstract
BACKGROUND Critically ill children with hemodynamic instability and acute kidney injury often develop fluid overload. Continuous renal replacement therapy (CRRT) has emerged as a favored modality in the management of such children. This study investigated the association between fluid overload and mortality in children receiving CRRT. STUDY DESIGN Prospective observational study. SETTING & PARTICIPANTS 297 children from 13 centers across the United States participating in the Prospective Pediatric CRRT Registry. PREDICTOR Fluid overload from intensive care unit (ICU) admission to CRRT initiation, defined as a percentage equal to (fluid in [L] - fluid out [L])/(ICU admit weight [kg]) x 100%. OUTCOME & MEASUREMENTS The primary outcome was survival to pediatric ICU discharge. Data were collected regarding demographics, CRRT parameters, underlying disease process, and severity of illness. RESULTS 153 patients (51.5%) developed < 10% fluid overload, 51 patients (17.2%) developed 10%-20% fluid overload, and 93 patients (31.3%) developed > or = 20% fluid overload. Patients who developed > or = 20% fluid overload at CRRT initiation had significantly higher mortality (61/93; 65.6%) than those who had 10%-20% fluid overload (22/51; 43.1%) and those with < 10% fluid overload (45/153; 29.4%). The association between degree of fluid overload and mortality remained after adjusting for intergroup differences and severity of illness. The adjusted mortality OR was 1.03 (95% CI, 1.01-1.05), suggesting a 3% increase in mortality for each 1% increase in severity of fluid overload. When fluid overload was dichotomized to > or = 20% and < 20%, patients with > or = 20% fluid overload had an adjusted mortality OR of 8.5 (95% CI, 2.8-25.7). LIMITATIONS This was an observational study; interventions were not standardized. The relationship between fluid overload and mortality remains an association without definitive evidence of causality. CONCLUSIONS Critically ill children who develop greater fluid overload before initiation of CRRT experience higher mortality than those with less fluid overload. Further goal-directed research is required to accurately define optimal fluid overload thresholds for initiation of CRRT.
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Affiliation(s)
- Scott M Sutherland
- Department of Pediatrics, Stanford University School of Medicine and Lucile Packard Children's Hospital, Palo Alto, CA, USA.
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28
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Abstract
Continuous renal replacement therapy (CRRT) is becoming the treatment of choice for critically ill patients with acute renal failure around the world. In particular, CRRT is used for patients with combined liver and acute renal failure, because they are often hemodynamically unstable. The question arises as to whether the use of CRRT should be extended to those patients with acute and chronic liver failure who do not have dialysis-dependent renal failure. CRRT could potentially allow some detoxification by removing water-soluble toxins and also allow regulation of intravascular volume and correction of sodium and other electrolyte and acid-base imbalances. By providing homeostatic control, CCRT could potentially help support patients by bridging to liver transplantation and managing those who eventually recover with hepatic regeneration.
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Affiliation(s)
- Andrew Davenport
- Royal Free and University College Hospital Medical School, Center for Nephrology, Royal Free Hospital, London, UK.
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29
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Poch E, Riviello ED, Christopher K. [Acute renal failure in the intensive care unit]. Med Clin (Barc) 2008; 130:141-8. [PMID: 18279633 DOI: 10.1157/13115770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Esteban Poch
- Servicio de Nefrología, Hospital Clínic, Universidad de Barcelona, Barcelona, España.
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30
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Renal Replacement Therapy. Surgery 2008. [DOI: 10.1007/978-0-387-68113-9_33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Sun IF, Lee SS, Lin SD, Lai CS. Continuous arteriovenous hemodialysis and continuous venovenous hemofiltration in burn patients with acute renal failure. Kaohsiung J Med Sci 2007; 23:344-51. [PMID: 17606429 DOI: 10.1016/s1607-551x(09)70420-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Acute renal failure (ARF) is a very common condition that may occur in patients with major burn injuries. The majority of burn patients with ARF have a high mortality rate, ranging from 73% to 100%. There are several ways to treat ARF in burn patients, including peritoneal dialysis (PD), intermittent hemodialysis, and continuous renal replacement therapy (CRRT). CRRT is generally used in patients in whom intermittent hemodialysis has failed to control hypovolemia, as well as in patients who cannot tolerate intermittent hemodialysis. Additionally, PD is not suitable for patients with burns within the abdominal area. For these reasons, most patients with unstable hemodynamic conditions receive CRRT. In this study (conducted in our burn unit between 1997 and 2004), six burn patients received CRRT: three received continuous arteriovenous hemodialysis (CAVHD) and the other three received continuous venovenous hemofiltration (CVVH). The patients were all males, with a mean age of 49.8 years (range, 27-80 years), and a mean burnt surface area of 65.1% (range, 30-95%). Four patients died due to multiple organ failure, and two patients recovered from severe ARF. CRRT has been proven safe and useful for burn patients with ARF. According to this study, we conclude that CVVH is an appropriate tool for treating ARF, with a lower incidence of vascular complications than CAVHD.
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Affiliation(s)
- I-Feng Sun
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
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32
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Dirkes S, Hodge K. Continuous Renal Replacement Therapy in the Adult Intensive Care Unit: History and Current Trends. Crit Care Nurse 2007. [DOI: 10.4037/ccn2007.27.2.61] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Susan Dirkes
- Susan Dirkes is a clinical educator at NxStage Medical, Lawrence, Mass
| | - Kimberly Hodge
- Kimberly Hodge is the Advanced Cardiac Life Support and Pediatric Advanced Life Support senior educator for the Emergency Response Training Institute at Clarian Health, Indianapolis, Ind
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33
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Hsieh CW, Chen HH. Continuous Renal Replacement Therapy for Acute Renal Failure in the Elderly. INT J GERONTOL 2007. [DOI: 10.1016/s1873-9598(08)70023-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Tiruvoipati R, Moorthy T, Balasubramanian SK, Platt V, Peek GJ. Extracorporeal membrane oxygenation and extracorporeal albumin dialysis in pediatric patients with sepsis and multi-organ dysfunction syndrome. Int J Artif Organs 2007; 30:227-34. [PMID: 17417762 DOI: 10.1177/039139880703000308] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Extracorporeal membrane oxygenation (ECMO) is used in managing patients with potentially reversible cardio-respiratory failure refractory to conventional methods. Multiorgan dysfunction syndrome (MODS), usually due to sepsis, remains the main cause of mortality in such patients. We report a series of six pediatric patients with sepsis-induced MODS where extracorporeal albumin dialysis (EAD) was used while the patients were on ECMO. The age of the patients ranged between 1 month and 17 years. The mean pediatric index of mortality (PIM) score at admission was 67.5%. All these patients further deteriorated with MODS and EAD was used as rescue therapy. At institution of EAD, 4 patients had dysfunction of 4 organs and 2 patients had dysfunction of 5 organs. The number of EAD cycles ranged between 1 and 3. Three out of the 6 patients (50%) survived to discharge from the intensive care unit and two of the six patients (33%) survived to hospital discharge. According to our previous experience and published results, all these patients would have been expected to die. The present results suggest that EAD may prove to have a role in the treatment of pediatric patients with sepsis-induced MODS. Further research is required to identify the group of patients who would benefit most by EAD as well as understand the clearance of inflammatory mediators and other mechanisms involved with the use of EAD.
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Affiliation(s)
- R Tiruvoipati
- Department of ECMO, Glenfield Hospital, Groby Road, Leicester, United Kingdom.
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35
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Sakata H, Yonekawa M, Kawamura A. Blood purification therapy for sepsis. Transfus Apher Sci 2006; 35:245-51. [PMID: 17110167 DOI: 10.1016/j.transci.2006.06.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2006] [Accepted: 06/14/2006] [Indexed: 01/09/2023]
Abstract
Accumulating evidences of underlining pathogenesis of sepsis have contributed to the therapeutic strategy for sepsis. Not only endotoxin and cytokine, but also signal transduction through Toll-like receptors could be a strategic target for the management of sepsis. Blood purification therapy including polymyxin B-immobilized hemoperfusion cartridge and continuous hemodiafiltration has shown the beneficial effect on patients with sepsis in Japan. Although they were initially designed to remove endotoxin and cytokines respectively, they might eliminate unexpected mediators responsible for sepsis. Further elucidation of mechanism and randomized controlled studies are needed to establish the role of blood purification therapy in sepsis.
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Affiliation(s)
- Hiromi Sakata
- Department of Surgery, Sapporo Hokuyu Hospital, Research Institute for Artificial Organs, Transplantation and Gene Therapy, 6-6-5-1, Higashi Sapporo, Shiroishi-Ku, Sapporo, Hokkaido 003-0006, Japan
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36
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Salvatori G, Ronco F, Bonello M, Bottero M. Management of fluid overload in congestive heart failure: learning from a case report. Int J Artif Organs 2006; 29:187-96. [PMID: 16552666 DOI: 10.1177/039139880602900205] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A case of refractory fluid overload due to congestive heart failure and consequent renal insufficiency is reported. The case was approached multidisciplinarily, at the beginning with conservative and pharmacological therapy, subsequently with extracorporeal fluid removal in which a specific attention was payed to the maintenance of circulating blood volume and achievement of dry weight, and finally with chronic peritoneal dialysis as a maintenance therapy. The case seems to summarize the pathway of many patients seen initially in intensive care and cardiology departments and subsequently in nephrological wards.
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Affiliation(s)
- G Salvatori
- Department of Intensive Care, Nephrology and Cardiology, St. Bortolo Hospital, Vicenza, Italy.
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Yorgin P, Ludlow M, Chua A, Alexander S. A technique for rapid exchange of continuous renal replacement therapy. Pediatr Nephrol 2006; 21:743-6. [PMID: 16534605 DOI: 10.1007/s00467-006-0050-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2005] [Revised: 10/21/2005] [Accepted: 10/24/2005] [Indexed: 10/24/2022]
Abstract
Re-initiation of continuous renal replacement therapy (CRRT) in neonates and young infants weighing less than 15 kg often necessitates a blood prime of the blood circuit path or a concurrent packed red blood cell (PRBC) transfusion to avoid causing hemodynamic instability due to acute hemodilution. The significant amount of time required for a routine CRRT circuit change can be associated with worsening electrolyte and acid-base abnormalities, fluid retention, greater hemodynamic instability and reducing effective hemofiltration time. In an attempt to limit the time without CRRT and to eliminate the requirement for additional blood exposure, a new technique, rapid exchange of continuous renal replacement therapy (RECRRT), was developed. Rapid exchange of continuous renal replacement therapy is a sequential technique that transfers citrated blood from one CRRT machine to another machine connected in series. The technique effectively negates the requirement for CRRT circuit path blood priming or PRBC transfusion. The amount of time without CRRT is markedly reduced by RECRRT to 2-3 min. The RECRRT technique has been utilized more than 30 times for at least 15 patients without an adverse event. RECRRT may benefit children who weigh less than 15 kg and in those patients who experience hemodynamic or clinical instability while CRRT is discontinued for only a brief period.
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Affiliation(s)
- Peter Yorgin
- Section of Pediatric Nephrology, Stanford University, Stanford, CA, USA.
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López-Herce J, Rupérez M, Sánchez C, García C, García E, Rodríguez D, Del Cañizo JF. Continuous Venovenous Renal Replacement Therapy With a Pulsatile Tubular Blood Pump: Analysis of Efficacy Parameters. Artif Organs 2006; 30:64-9. [PMID: 16409399 DOI: 10.1111/j.1525-1594.2006.00181.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A three-valve pulsatile tubular pump was used in 10 pigs weighing 9.9+/-0.3 kg, connected to a neonatal hemofiltration (HF) circuit to analyze the parameters to determine the ultrafiltration effectiveness for venovenous continuous renal replacement therapy. Forty 30-min periods were studied to analyze the influence of the catheter diameter, purification technique (HF or hemodiafiltration), pump pulsation frequency, percentage time in diastole, percentage time in diastole in which the post pump valve was closed, and percentage time in systole in which the post filter valve was closed, on ultrafiltrate volume and blood flow through the filter. A higher ultrafiltrate flow was achieved with a frequency of 60 bpm than with 30 bpm, a diastolic time of 65% of the total cycle versus 50%, and a blood flow of greater than 20 mL/min versus less than 20 mL/min. The ultrafiltrate flow increases in relation to the blood flow, the frequency of the pump, and the diastolic time.
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Affiliation(s)
- Jesús López-Herce
- Pediatric Intensive Care Unit, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
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Abstract
Lactic acidosis is frequently encountered in the intensive care unit. It occurs when there is an imbalance between production and clearance of lactate. Although lactic acidosis is often associated with a high anion gap and is generally defined as a lactate level >5 mmol/L and a serum pH <7.35, the presence of hypoalbuminemia may mask the anion gap and concomitant alkalosis may raise the pH. The causes of lactic acidosis are traditionally divided into impaired tissue oxygenation (Type A) and disorders in which tissue oxygenation is maintained (Type B). Lactate level is often used as a prognostic indicator and may be predictive of a favorable outcome if it normalizes within 48 hours. The routine measurement of serum lactate, however, should not determine therapeutic interventions. Unfortunately, treatment options remain limited and should be aimed at discontinuation of any offending drugs, treatment of the underlying pathology, and maintenance of organ perfusion. The mainstay of therapy of lactic acidosis remains prevention.
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Affiliation(s)
- Pamela J Fall
- Section of Nephrology, Hypertension and Transplantation, Department of Medicine, Medical College of Georgia, Augusta 30912, USA
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Abstract
Despite the commonly accepted indications for hemodialysis and extracorporeal depuritive techniques, some clinicians have come to rely on blood purification for clinical states where the targeted substance for removal differs from uremic waste products. Over the last decade, a number of studies have emerged to help define the application of extracorporeal blood purification (ECBP) to these "nonuremic" indications. This review describes the application of extracorporeal blood purification in clinical states including sepsis, rhabdomyolysis, congestive heart failure, hepatic failure, tumor lysis syndrome, adult respiratory distress syndrome, intravenous contrast exposure, and lactic acidosis. Additional comments are provided to review existing literature on thermoregulation and osmoregulation, including acute brain injury.
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Affiliation(s)
- Andrew E Briglia
- Department of Medicine, Division of Nephrology, University of Maryland, Baltimore, Maryland 21201, USA.
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Jiang HL, Xue WJ, Li DQ, Yin AP, Xin X, Li CM, Gao JL. Influence of continuous veno-venous hemofiltration on the course of acute pancreatitis. World J Gastroenterol 2005; 11:4815-21. [PMID: 16097050 PMCID: PMC4398728 DOI: 10.3748/wjg.v11.i31.4815] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate whether continuous veno-venous hemofiltration (CVVH) in different filtration rate to eliminate cytokines would result in different efficiency in acute pancreatitis, whether the saturation time of filter membrane was related to different filtration rate, and whether the onset time of CVVH could influence the survival of acute pancreatitis.
METHODS: Thirty-seven patients were classified into four groups randomly. Group 1 underwent low-volume CVVH within 48 h of the onset of abdominal pain (early CVVH, n = 9). Group 2 received low-volume CVVH after 96 h of the onset of abdominal pain (late CVVH, n = 10). Group 3 underwent high-volume CVVH within 48 h of the onset of abdominal pain (early CVVH, n = 9). Group 4 received high-volume CVVH after 96 h of the onset of abdominal pain (late CVVH, n = 9). CVVH was sustained for at least 72 h. Blood was taken before hemofiltration, and ultrafiltrate was collected at the start of CVVH and every 12 h during CVVH period for the purpose of measuring the concentrations of TNF-α, IL-1β and IL-6. The concentrations of TNF-α, IL-1β and IL-6 were measured by swine-specific ELISA. The Solartron 1 255 B frequency response analyzer (British) was used to observe the resistance of filter membrane.
RESULTS: The survival rate had a significant difference (94.44% vs 68.42%, P<0.01) high-volume and low-volume CVVH patients. The survival rate had also a significant difference (88.89% vs 73.68%, P<0.05) between early and late CVVH patients. The hemodynamic deterioration (MAP, HR, CVP) was less severe in groups 4 and 1 than that in group 2, and in group 3 than in group 4. The adsorptive saturation time of filters membranes was 120-180 min if the filtration rate was 1 000-4 000 mL/h. After the first, second and third new hemofilters were changed, serum TNF-α concentrations had a negative correlation with resistance (r: -0.91, -0.89, and -0.86, respectively in group 1; -0.89, -0.85, and -0.76, respectively in group 2; -0.88, -0.92, and -0.82, respectively in group 3; -0.84, -0.87, and -0.79, respectively in group 4). The decreasing extent of TNF-α, IL-1β and IL-6 was significantly different between group 3 and group 1 (TNF-α P<0.05, IL-1β P<0.05, IL-6 P<0.01), between group 4 and group 2 (TNF-α P<0.05, IL-1β P<0.05, IL-6 P<0.01), between group 1 and group 2 (TNF-α P<0.05, IL-1β P<0.05, IL-6 P<0.05), and between group 3 and group 4 (TNF-α P<0.01, IL-1β P<0.01, IL-6 P<0.05), respectively during CVVH period. The decreasing extent of TNF-α and IL-1β was also significantly different between survival patients and dead patients (TNF-α P<0.05, IL-1β P<0.05). In survival patients, serum concentration of TNF-α and IL-1β decreased more significantly than that in dead patients.
CONCLUSION: High-volume and early CVVH improve hemodynamic deterioration and survival in acute pancreatitis patients. High-volume CVVH can eliminate cytokines more efficiently than low-volume CVVH. The survival rate is related to the decrease extent of TNF-α and IL-1β. The adsorptive saturation time of filter membranes are different under different filtration rate condition. The filter should be changed timely once filter membrane adsorption is saturated.
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Affiliation(s)
- Hong-Li Jiang
- Department of Hemodialysis Center, The First Hospital of Xi'an Jiaotong University, No.1 Jiankang Lu, Xi'an 710061, Shaanxi Province, China.
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Abstract
Acute renal failure is a common complication in the intensive care unit (ICU). Over the last 25 years, there have been significant technological advances in the delivery of renal replacement therapy, particularly as it pertains to the critically ill patient population. Despite these advances, acute renal failure in critically ill patients continues to carry a poor prognosis. In this article, we review the current literature about timing and initiation of renal replacement therapy in the ICU as well as practical considerations regarding the prescription and delivery of dialysis.
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Affiliation(s)
- Neesh Pannu
- Divisions of Nephrology and Critical Care Medicine, Faculty of Medicine and Dentistry, University of AlbertaEdmonton, AB, Canada
| | - RT Noel Gibney
- Division of Critical Care Medicine, Faculty of Medicine and Dentistry, University of AlbertaEdmonton, AB, Canada
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Ostermann ME, Chang RWS. Prognosis of acute renal failure: an evaluation of proposed consensus criteria. Intensive Care Med 2005; 31:250-6. [PMID: 15678317 DOI: 10.1007/s00134-004-2523-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2004] [Indexed: 10/25/2022]
Abstract
OBJECTIVES To validate the recently proposed criteria for acute renal injury (ARI), acute renal failure syndrome (ARFS) and severe acute renal failure syndrome (SARFS) and to evaluate the significance of other prognostic factors. DESIGN AND SETTING Retrospective analysis of the Riyadh ICU Program database of patients admitted to 22 ICUs in UK and Germany between 1989 and 1998. PATIENTS Included in the study were 41,972 patients, of whom 7,522 (17.9%) had ARI, 2,641 (6.3%) had ARFS and 1,747 (4.2%) had SARFS. RESULTS Patients with ARI, ARFS or SARFS had a hospital mortality of 29.5%, 49.2% or 63.0%, respectively, compared to 10.3% among patients without acute renal failure. In the presence of contemporaneous failure of any other organs on the day of acute renal failure, hospital mortality increased to 73.3%, 76.2%, 72.1% and 18%, respectively. Multivariate analysis showed that non-surgical admission, need for emergency surgery, development of acute renal failure during stay in ICU, need for mechanical ventilation and the number of other failed organ systems had a greater impact on prognosis than the need for renal replacement therapy. CONCLUSIONS The proposed criteria for ARI, ARFS and SARFS correlated with mortality, but other factors had a greater impact on prognosis. Renal replacement therapy did not increase the risk of hospital mortality among patients with acute renal failure.
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Affiliation(s)
- M E Ostermann
- Department of Nephrology and Transplantation, St George's Hospital, Blackshaw Road, London, SW17 0QT, UK
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Humes HD, Weitzel WF, Bartlett RH, Swaniker FC, Paganini EP, Luderer JR, Sobota J. Initial clinical results of the bioartificial kidney containing human cells in ICU patients with acute renal failure. Kidney Int 2004; 66:1578-88. [PMID: 15458454 DOI: 10.1111/j.1523-1755.2004.00923.x] [Citation(s) in RCA: 199] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Acute renal failure (ARF) in intensive care unit patients continues to have mortality rates exceeding 70%, despite hemodialysis or continuous renal replacement therapy (CRRT). The delivery of cellular metabolic function to CRRT may provide more complete renal replacement therapy, thereby changing the natural history of this disease process. An FDA-approved Phase I/II clinical trial on 10 patients has been completed, and demonstrated that this experimental treatment can be delivered safely for up to 24 hours. METHODS The bioartificial kidney is a synthetic hemofilter connected in series with a bioreactor cartridge containing approximately 10(9) human proximal tubule cells, as a renal tubule assist device (RAD), within an extracorporeal perfusion circuit utilizing standard hemofiltration pump systems. All 10 patients had ARF and multiorgan failure (MOF), with predicted hospital mortality rates averaging above 85%. RESULTS Data indicate that the RAD maintains viability, durability, and functionality in this ex vivo clinical setting. The device also demonstrated differentiated metabolic and endocrinologic activity, with glutathione degradation and endocrinologic conversion of 25-OH-D(3) to 1,25-(OH)(2)-D(3). All but one treated patient with more than a 3-day follow-up in the intensive care unit showed improvement as assessed by acute physiologic scores 1 to 7 days following therapy. Six of the 10 treated patients survived past 30 days. One patient expired within 12 hours after RAD treatment due to his family's request to withdraw ventilatory life support. Three other patients died due to complications from acute or chronic comorbidities unrelated to ARF or RAD therapy. Plasma cytokine levels suggest that RAD therapy produced dynamic and individualized responses in patients. For the subset of patients who had excessive proinflammatory levels, RAD treatment resulted in significant declines in granulocyte colony stimulating factor (G-CSF), interleukin (IL)-6, IL-10, and IL-6/IL-10 ratios. CONCLUSION The addition of human renal tubule cell therapy to CRRT has been accomplished and demonstrates metabolic activity with systemic effects in patients with ARF and MOF. These initial clinical results are encouraging, so that a randomized, controlled Phase II clinical trial is underway to further assess the clinical safety and efficacy of this new therapeutic approach.
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Affiliation(s)
- H David Humes
- Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan 48109, USA.
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Ahrns KS. Trends in burn resuscitation: shifting the focus from fluids to adequate endpoint monitoring, edema control, and adjuvant therapies. Crit Care Nurs Clin North Am 2004; 16:75-98. [PMID: 15062415 DOI: 10.1016/j.ccell.2003.09.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bum shock is a complex process involving a series of intertwined physiologic responses to injury that require more rigorous intervention than simply a change in fluid tonicity, fluid composition, or fluid resuscitation volume. Controversy ensues over monitoring techniques and resuscitation goals, in part because the identification of true markers of perfusion is clouded by intradependence of endpoints on other metabolic processes. The persistence of cellular hypoperfusion in patients who have been deemed adequately resuscitated by global indices supports the growing realization that failure of conventional endpoint-monitoring strategies to detect compensated bum shock can lead to significant organ injury from SIRS or MODS. Current endpoints should be interpreted in the aggregate, because none have yet been demonstrated to reflect tissue perfusion status independently and accurately. Numerous technologically advanced endpoints to predict patient outcome, which may be useful in determining futility of treatment or end-of-life decisions, are now available. Still lack-ing, however, is a reliable tool proven to improve outcome that can guide bum shock resuscitation therapies successfully. Exciting new research in tissue oxygenation and perfusion has revealed that damaging mediator cascades and irreversible microvascular changes may preclude complete resolution of bum shock solely through restoration of oxygen delivery. Because bum patients now frequently survive the early resuscitation phase. the focus should be on controlling derangements in oxygen use and correcting occult hypoperfusion to reduce later adverse patient outcomes from SIRS, sepsis, and MODS. Bum-specific research on resuscitation endpoints and monitoring strategies lags behind research in other patient populations. Present standards and monitoring guidelines for bum shock resuscitation should be critically evaluated and based on true, scientifically validated data rather than on observational studies or personal beliefs. Thus the continuing challenge for clinicians and researchers:burn centers must collaborate to perform large, multi-center studies to evaluate critically and to prove resuscitation endpoints and therapies. Future technologies targeted at microcirculatory perfusion and cellular oxygenation offer an exciting promise for less invasive, easily accessible, more accurate endpoints and treatments for bum shock resuscitation.
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Affiliation(s)
- Karla S Ahrns
- University of Michigan Trauma Burn Center, 1500 East Medical Center Drive, Room UH1C340, Ann Arbor, MI 48109, USA.
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46
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Abstract
Acute renal failure (ARF) is a cause of significant morbidity and mortality. Despite advances in supportive care, outcomes in ARF have improved little over the past decades. The primary goals in management of patients with ARF are to optimize hemodynamic and volume status, minimize further renal injury, correct metabolic abnormalities, and permit adequate nutrition. Renal replacement therapy (RRT) is often required to achieve these goals while awaiting renal recovery, but the optimal dose of dialysis in patients with ARF is not known. Extrapolation of required dialysis dose from recommendations in chronic dialysis is unlikely to be appropriate because of the lack of a steady state and differences in distribution volume of urea that are intrinsic to ARF. The prescribed dialysis dose in ARF is often low, and actual delivered dose is often even less than prescribed. Delivery of dialysis in ARF is often hampered by the patient's hypercatabolic state, hemodynamic instability, and volume status, as well as suboptimal vascular access with temporary venous catheters. The impact of intermittent hemodialysis (IHD) versus continuous renal replacement therapy (CRRT) on outcomes in ARF is also not clear. Patient disease severity impacts more than dialysis modality in patient outcome, but when patients are stratified for equal disease severity, CRRT may have potential benefits over IHD in terms of patient survival, fluid and metabolic control, and renal recovery. Strategies associated with improved outcomes that have emerged thus far in ARF are to aim for a time-averaged blood urea nitrogen (BUN) of less than 60 mg/dl with IHD, varying IHD frequency as necessary, or to achieve a minimum ultrafiltration rate of 35 ml/kg/hr with CRRT.
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Affiliation(s)
- Valerie A Luyckx
- Renal Division, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA.
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Yang Z, Wang C, Tao J, Xiong J, Wan C, Zhou F. Effect of early hemofiltration on pro- and anti-inflammatory responses and multiple organ failure in severe acute pancreatitis. Curr Med Sci 2004; 24:456-9. [PMID: 15641691 DOI: 10.1007/bf02831107] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2003] [Indexed: 10/19/2022]
Abstract
The effects of early hemofiltration on the serum levels of cytokines, pro- and anti-inflammatory balance and organ function in pigs with severe acute pancreatits (SAP) were studied. SAP pig model was induced by retrograde injection of artificial bile into the pancreatic duct. The pigs were randomly divided into SAP hemofiltration treatment group (HF group, n=8) and SAP non-hemofiltration treatment group (NHF group, n=8). In the HF group, the animals were subjected to high-volume and zero-balance hemofiltration therapy. The results showed that as compared with NHF group, MAP, CVP and PaO2/FiO2 were significantly increased (P<0.01), while HR, urinary protein content, serum ALT level, pulmonary coefficient and lung wet/dry ratio obviously decreased (P<0.05) in HF group. Under a light microscope, the pulmonary histologic scoring was lower that in HF group (P<0.01) and the lesions of renal and liver tissues were milder. However, there was no significant difference in the pancreatic histologic scoring between the two groups. Six h after establishment of the model, the serum levels of TNF-alpha, IL-1beta were lower, while the IL-10/ TNF-alpha ratio was higher in HF group (all P<0.05). It was suggested that early hemofiltration could effectively remove the serum cytokines TNF-alpha and IL-1beta in SAP pigs, elevate the ratio of IL-10/TNF-alpha, improve hemodynamics and alleviate the lesions of lung, kidney and liver tissues.
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Affiliation(s)
- Zhiyong Yang
- Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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Abstract
Renal and electrolyte problems are common in patients in the ICU. Several advances that occurred in the recent past have been incorporated in the diagnosis and management of these disorders and were reviewed in this article. Unfortunately, many important questions remain unanswered, especially in the area of ARF, where new therapies are anxiously awaited to make the transition from bench to bedside. Better studies are sorely needed to define the best approach to dialysis in patients who have ARF.
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Affiliation(s)
- Aldo J Peixoto
- Department of Medicine, Section of Nephrology, Yale University School of Medicine, 333 Cedar Street, 2073 LMP, New Haven, CT 06520, USA.
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49
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Abstract
Metabolic acidosis is characterized by a decrease of the blood pH associated with a decrease in the bicarbonate concentration. This may be secondary to a decrease in the strong ion difference or to an increase in the weak acids concentration, mainly the inorganic phosphorus. From a conceptual point of view, two types of nontoxic metabolic acidosis must be differentiated: the mineral metabolic acidosis that reveals the presence of an excess of nonmetabolizable anions, and the organic metabolic acidosis that reveals an excess of metabolizable anions. Significance and consequences of these two types of acidosis are radically different. Mineral acidosis is not caused by a failure in the energy metabolic pathways, and its treatment is mainly symptomatic by correcting the blood pH (alkali therapy) or accelerating the elimination of excessive mineral anions (renal replacement therapy). On the other hand, organic acidosis gives evidence that a severe underlying metabolic distress is in process. No reliable argument exists to prove that this acidosis is harmful under these conditions in humans. Experimental data even show that hypoxic cells are able to survive only if the medium is kept acidic. The management of an acute organic metabolic acidosis is therefore primarily based on the cause of the acidosis, and no scientific argument exists to justify the correction of the acid-base imbalance in this context.
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Affiliation(s)
- Jacques Levraut
- Departemente d'Anesthesie Reanimation Est, Hopital Saint Roch-5, rue Pierre Devoluy, F-06006, Nice.
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50
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Tetta C, Bellomo R, D'Intini V, De Nitti C, Inguaggiato P, Brendolan A, Ronco C. Do circulating cytokines really matter in sepsis? KIDNEY INTERNATIONAL. SUPPLEMENT 2003:S69-71. [PMID: 12694313 DOI: 10.1046/j.1523-1755.63.s84.40.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Sepsis remains the major cause of mortality worldwide, claiming millions of lives each year. The past decade has seen major advances in the understanding of the biological mechanisms involved in this complex process. Unfortunately, no definitive therapy yet exists that can successfully treat sepsis and its complications. In this review, we will address the significance of circulating cytokines in the pathophysiology of sepsis and its relevance to new approaches in extracorporeal therapies.
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Affiliation(s)
- Ciro Tetta
- Renal Research, Division of Medicine, Fresenius Medical Care, Bad Homburg, Germany.
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