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Coppo P, Joly BS. Caplacizumab: A game changer also in pregnancy-associated immune-mediated thrombotic thrombocytopenic purpura? Br J Haematol 2023; 202:725-727. [PMID: 37291806 DOI: 10.1111/bjh.18915] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/10/2023]
Abstract
Therapeutic options in immune-mediated thrombotic thrombocytopenic purpura (iTTP) during pregnancy are limited besides therapeutic plasma exchange (TPE) and corticosteroids. The report by Odetola et al. suggests that caplacizumab represents a reasonable option in iTTP during pregnancy, especially when the disease is not rapidly controlled with the standard TPE-corticosteroid association. Commentary on: Odetola et al. Safe and effective use of caplacizumab in pregnancy-related acquired thrombotic thrombocytopenic purpura. Br J Haematol 2023;202:879-882.
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Mercure-Corriveau N, Roy S, Hu C, Crowe EP, Zhu X, Obando D, Patel EU, Tobian AAR, Wang Y, Bloch EM, Newsome SD. Therapeutic plasma exchange in the management of stiff person syndrome spectrum disorders: a case series and review of the literature. Ther Adv Neurol Disord 2023; 16:17562864231180736. [PMID: 37529719 PMCID: PMC10387686 DOI: 10.1177/17562864231180736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 05/11/2023] [Indexed: 08/03/2023] Open
Abstract
Background Stiff person syndrome spectrum disorders (SPSD) are a rare group of disabling neuroimmunological disorders. SPSD often requires immune therapies, especially in the setting of inadequate response to symptomatic treatments. The safety and efficacy of therapeutic plasma exchange (TPE) in SPSD remains uncertain. Objectives To describe the safety, tolerability, and efficacy of TPE in patients with SPSD. Design A retrospective observational study. Methods A retrospective review of SPSD patients seen at Johns Hopkins Hospital (JHH) from 1997 to 2021 was performed. Patient demographics/history, examination/diagnostic findings, treatment response, and TPE-related complications were recorded. Assessment for any associations between clinical characteristics, including age, sex, clinical phenotype, and time on immunotherapy, and response to TPE 3 months after treatment was performed. A subgroup of 18 patients treated with TPE at JHH and 6 patients treated with TPE at outside institutions were evaluated for any change in usage of symptomatic medications 3 months after the TPE treatment. Literature review of SPSD and TPE was also conducted. Results Thirty-nine SPSD patients were treated with TPE (21 at JHH and 18 at outside institutions); median age 48 years, 77% female, median modified Rankin Scale 3; mean initial anti-GAD65 antibody titer was 23,508 U/mL. Twenty-four patients (62%) had classic SPS, 10 (26%) had SPS-plus, 2 (5%) had progressive encephalomyelitis with rigidity and myoclonus, and 3 (8%) had pure cerebellar ataxia. All patients were on symptomatic treatments, 30 (77%) previously received IVIg, and 3 (8%) previously received rituximab. Four patients (10%) had a TPE-related adverse event. One developed asymptomatic hypotension, another had both line thrombosis and infection, and two had non-life-threatening bleeding events. Twenty-three (59%) patients reported improvement in symptoms after TPE. Of the subgroup of 24 patients evaluated for any change in usage of symptomatic medications 3 months after the TPE treatment, 14 (58%) required fewer GABAergic symptomatic medications. Literature review identified 57 additional patients with SPSD; 43 (75%) reported temporary improvement after TPE. Conclusion The majority of patients treated with TPE had improvement. Moreover, most patients evaluated for any change in usage of symptomatic medications after the TPE treatment no longer required as much symptomatic medications months after TPE. TPE appears safe and well-tolerated in SPSD. Further studies are needed to assess the long-term efficacy of TPE in SPSD and identify which patients may benefit the most from TPE.
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Göth D, Mahler CF, Kälble F, Speer C, Benning L, Schmitt FCF, Dietrich M, Krautkrämer E, Zeier M, Merle U, Morath C, Fiedler MO, Weigand MA, Nusshag C. Liver-Support Therapies in Critical Illness-A Comparative Analysis of Procedural Characteristics and Safety. J Clin Med 2023; 12:4669. [PMID: 37510784 PMCID: PMC10380554 DOI: 10.3390/jcm12144669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/09/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Extracorporeal liver-support therapies remain controversial in critically ill patients, as most studies have failed to show an improvement in outcomes. However, heterogeneous timing and inclusion criteria, an insufficient number of treatments, and the lack of a situation-dependent selection of available liver-support modalities may have contributed to negative study results. We retrospectively investigated the procedural characteristics and safety of the three liver-support therapies CytoSorb, Molecular Adsorbent Recirculating System (MARS) and therapeutic plasma exchange (TPE). Whereas TPE had its strengths in a shorter treatment duration, in clearing larger molecules, affecting platelet numbers less, and improving systemic coagulation and hemodynamics, CytoSorb and MARS were associated with a superior reduction in particularly small protein-bound and water-soluble substances. The clearance magnitude was concentration-dependent for all three therapies, but additionally related to the molecular weight for CytoSorb and MARS therapy. Severe complications did not appear. In conclusion, a better characterization of disease-driving as well as beneficial molecules in critically ill patients with acute liver dysfunction is crucial to improve the use of liver-support therapy in critically ill patients. TPE may be beneficial in patients at high risk for bleeding complications and impaired liver synthesis and hemodynamics, while CytoSorb and MARS may be considered for patients in whom the elimination of smaller toxic compounds is a primary objective.
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Abdelhay A, Mahmoud AA, Ammari O, Dalbah R, Reghis M, Hashem A, Alkasem M, Mostafa M. Outcomes of therapeutic plasma exchange in severe autoimmune hemolytic anemia hospitalizations: An analysis of the National Inpatient Sample. Transfusion 2023. [PMID: 37395043 DOI: 10.1111/trf.17445] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/12/2023] [Accepted: 05/09/2023] [Indexed: 07/04/2023]
Abstract
BACKGROUND Autoimmune hemolytic anemia (AIHA) is characterized by humoral and/or cellular immune-mediated hemolysis of red blood cells. The role of therapeutic plasma exchange (TPE) in AIHA is unclear. STUDY DESIGN AND METHODS We queried the National Inpatient Sample (NIS) for 2002-2019 to identify hospitalizations with the primary diagnosis of AIHA. We included hospitalizations with the highest severity subclass identified by All Patient Refined Disease Related Group (APR-DRG). We used multivariate regression analysis to compare in-hospital mortality and other relevant in-hospital outcomes between hospitalizations that received TPE and those that did not. RESULTS We identified 255 weighted hospitalizations in the TPE group and 4973 in the control group. Those in the control group were older (median age 67 vs. 48 years, p < .001) and had a higher prevalence of most comorbidities. The TPE group had higher odds of all-cause in-hospital mortality (odds ratio [OR], 1.59; 95% confidence interval [CI], 1.19-2.11). They also had higher rates of many secondary outcomes, including requiring mechanical ventilation, developing circulatory shock, acute stroke, urinary tract infections, intracranial hemorrhage, acute kidney injury, and requiring new hemodialysis. No significant differences were noted in the rates of acute myocardial infarctions, bacterial pneumonia, sepsis/septicemia, thromboembolic events, and other bleeding events. Furthermore, the TPE group had a higher median length of hospital stay (19 vs. 9 days, p < .001). CONCLUSION Hospitalizations with severe AIHA that received TPE had higher rates of adverse in-hospital outcomes.
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Mohan PB, Chittoria RK, Koliyath S, Pathan I, Thomas N, Kerakada N, Kedareswar M, Koirala D, R A, Ahmed FM. Therapeutic Plasma exchange therapy in Burns. J Cutan Aesthet Surg 2023; 16:259-261. [PMID: 38189078 PMCID: PMC10768955 DOI: 10.4103/jcas.jcas_173_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024] Open
Abstract
Severe burn injury affects the body in many devastating ways, the most severe being systemic inflammatory response syndrome. This results in a myriad of effects like increasing capillary permeability, thereby fluid loss. It also causes a surge in inflammatory mediators like interleukin (IL)-6, which further increases the capillary leak and fluid loss. This results in refractory hypotension in patients despite adequate fluid resuscitation. Plasma exchange has been used in the management of a number of illnesses with a significant inflammatory component, and, therefore can be considered to have a role in burn injury. In our article, we would like to share our experience of using therapeutic plasma exchange therapy in burn patient.
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Bereanu AS, Pisaltu T, Bereanu R, Vintila B, Codru I, Chicea L, Crisan O, Căinap C, Cainap S, Sava M. Therapeutic Plasma Exchange in Catastrophic Antiphospholipid Syndrome (CAPS): A Rare Case Report and Literature Review. In Vivo 2023; 37:1914-1919. [PMID: 37369472 DOI: 10.21873/invivo.13286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/27/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023]
Abstract
BACKGROUND/AIM Catastrophic antiphospholipid syndrome (CAPS) may be the first manifestation ("de novo") of antiphospholipid syndrome (APS) or a complication in the clinical course of patients known to have this syndrome. Approximately 40% of patients had an associated autoimmune disease, mainly, systemic lupus erythematosus (SLE). The trigger can be one of the following: infections, surgical interventions, neoplasms, pregnancy, discontinuation of anticoagulant treatment, and others. CAPS is a medical emergency in which early identification and prompt initiation of aggressive therapy is extremely important. According to the Guidelines for the use of Therapeutic Apheresis in Clinical Practice developed by the American Society for Apheresis (ASFA), last updated in April 2023, in CAPS, the indication for therapeutic plasma exchange (TPE) is category I, grade 2C. CASE REPORT We present a case of probable CAPS secondary to systemic lupus erythematosus (SLE) in an elderly patient in whom clinical and biological improvement was achieved through a multidisciplinary approach and prompt initiation of TPE. Because TPE is considered first-line therapy in CAPS, we initiated the procedure as soon as the attending rheumatologist raised this suspicion. Four plasmapheresis sessions were performed in the Intensive Care Unit. We used TPE by membrane filtration. Following the therapeutic intervention with TPE, corticotherapy (Solumedrol in puls-therapy), cyclophosphamide and anticoagulant treatment, the evolution was favourable, with clinical and biological improvement. CONCLUSION The prompt initiation of TPE, because of the suspicion of CAPS, increases the chances of a favourable evolution.
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Iannaccone A, Reisch B, Kimmig R, Schmidt B, Mavarani L, Darkwah Oppong M, Tyczynski B, Dzietko M, Jahn M, Gellhaus A, Köninger A. Therapeutic Plasma Exchange in Early-Onset Preeclampsia: A 7-Year Monocentric Experience. J Clin Med 2023; 12:4289. [PMID: 37445324 DOI: 10.3390/jcm12134289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/19/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
Different therapeutic apheresis techniques have been clinically tested to delay preterm delivery in the case of eoPE (early-onset preeclampsia). Our study evaluated the feasibility of TPE (therapeutic plasma exchange) compared to standard-of-care treatment. Twenty patients treated with 95 TPE sessions were included in the final analysis and retrospectively matched with 21 patients with comparable placental dysfunction. Gestational age at admission was 23.75 ± 2.26 versus 27.57 ± 2.68 weeks of gestation (WoG) in the control group (p = < 0.001), mean sFlt-1/PlGF ratio was 1946.26 ± 2301.63 versus 2146.70 ± 3273.63 (p = 0.821) and mean sEng was 87.63 ± 108.2 ng/mL versus 114.48 ± 88.78 ng/mL (p = 0.445). Pregnancy was prolonged for 8.25 ± 5.97 days when TPE was started, compared to 3.14 ± 4.57 days (p = 0.004). The median sFlt-1/PlGF Ratio was 1430 before and 1153 after TPE (-18.02%). Median sEng fell from 55.96 ng/mL to 47.62 mg/mL (-27.73%). The fetal survival rate was higher in TPE-treated cases. NICU (Neonatal Intensive Center Unit) stay was in the median of 63 days in the TPE group versus 48 days in the standard-of-care group (p = 0.248). To date, this monocentric retrospective study, reports the largest experience with extracorporeal treatments in eoPE worldwide. TPE could improve pregnancy duration and reduce sFlt-1 and sEng in maternal serum without impairing neonatal outcomes.
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Noutsos T, Isbister GK. Snakebite-associated thrombotic microangiopathy: a spotlight on pharmaceutical interventions. Expert Rev Clin Pharmacol 2023. [PMID: 37259708 DOI: 10.1080/17512433.2023.2220963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
INTRODUCTION Snakebite is a neglected public health issue causing death and disability, disproportionately affecting tropical and subtropical resource poor countries globally. Snakebite-associated thrombotic microangiopathy (TMA) occurs in a subset of snakebites and is associated with acute kidney injury (sometimes requiring renal replacement therapy), and a risk of chronic kidney disease. AREAS COVERED This expert review synthesizes current evidence on therapeutic interventions in snakebite-associated TMA, via PubMed search for cohort studies and randomized controlled trials (RCT) in snakebite-associated TMA from 1970 to October 2022. EXPERT OPINION There are no interventional RCTs in snakebite-associated TMA. Recent cohort studies from Sri Lanka, India and Australia report clinical and laboratory endpoint outcomes for intervention with antivenom and therapeutic plasma-exchange (TPE). TPE is a resource intense and costly treatment using large volumes of blood donor plasma. There is no consistent evidence supporting TPE in snakebite-associated TMA with respect to patient survival, dialysis free survival, or hospital length of stay. Antivenom is the standard of care for patients with snake envenoming, but there is no specific evidence of benefit in snakebite-associated TMA. Emerging new therapies in snakebite more broadly are untested in snakebite-associated TMA. RCTs are needed to improve the evidence for treatment of snakebite-associated TMA.
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Ebermeyer T, Hequet O, Berard F, Prier A, Eyraud MA, Arthaud CA, Heestermans M, Duchez AC, Guironnet-Paquet A, Berthelot P, Cognasse F, Hamzeh-Cognasse H. The efficacy of therapeutic plasma exchange in COVID-19 patients on endothelial tightness in vitro is hindered by platelet activation. Front Cardiovasc Med 2023; 10:1094786. [PMID: 37215546 PMCID: PMC10192624 DOI: 10.3389/fcvm.2023.1094786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 04/20/2023] [Indexed: 05/24/2023] Open
Abstract
Coronavirus disease (COVID)-19 is characterised in particular by vascular inflammation with platelet activation and endothelial dysfunction. During the pandemic, therapeutic plasma exchange (TPE) was used to reduce the cytokine storm in the circulation and delay or prevent ICU admissions. This procedure consists in replacing the inflammatory plasma by fresh frozen plasma from healthy donors and is often used to remove pathogenic molecules from plasma (autoantibodies, immune complexes, toxins, etc.). This study uses an in vitro model of platelet-endothelial cell interactions to assess changes in these interactions by plasma from COVID-19 patients and to determine the extent to which TPE reduces such changes. We noted that exposure of an endothelial monolayer to plasmas from COVID-19 patients post-TPE induced less endothelial permeability compared to COVID-19 control plasmas. Yet, when endothelial cells were co-cultured with healthy platelets and exposed to the plasma, the beneficial effect of TPE on endothelial permeability was somewhat reduced. This was linked to platelet and endothelial phenotypical activation but not with inflammatory molecule secretion. Our work shows that, in parallel to the beneficial removal of inflammatory factors from the circulation, TPE triggers cellular activation which may partly explain the reduction in efficacy in terms of endothelial dysfunction. These findings provide new insights for improving the efficacy of TPE using supporting treatments targeting platelet activation, for instance.
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Boparai S, Lakra R, Dhaliwal L, Hansra RS, Bhuiyan MAN, Conrad SA, Krishnan P. Therapeutic Plasma Exchange in Severe Rhabdomyolysis: A Case-Control Study. Cureus 2023; 15:e39748. [PMID: 37398832 PMCID: PMC10310893 DOI: 10.7759/cureus.39748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/30/2023] [Indexed: 07/04/2023] Open
Abstract
INTRODUCTION Rhabdomyolysis is a serious condition that can cause acute kidney injury (AKI), compartment syndrome, severe metabolic and electrolyte derangement leading to arrhythmias, and even death. Total plasma exchange (TPE) has been used as a treatment modality to clear myoglobin, but the evidence is limited. In this study, we aim to investigate the use of TPE in critically ill rhabdomyolysis patients. METHODS We retrospectively chart reviewed adult patients admitted to the intensive care unit (ICU) with a diagnosis of rhabdomyolysis between 2012 and 2021. We dichotomized patients into two groups based on whether TPE was used or not in addition to standard care. PRISMA machines with TPE2000 filters and either 5% albumin or fresh frozen plasma were used in the TPE group. RESULTS The patients' age ranged from 23 years to 87 years (mean 49.4, SD 18.1), and 51% were male. Initial creatinine ranged from 0.6 to 16mg/dL (mean 3.4, SD 2.7), creatinine phosphokinase (CPK) from 403-93,232 U/L, and myoglobin from 934 to >20,000. The Sequential Organ Failure Assessment (SOFA)scores on admission ranged from 6 to 17 (mean 7.23, SD 3.40). Overall, 28.78% (N=19) of the patients received therapeutic plasma exchange. The overall mortality in our study was 31.9%, with the length of ICU stay ranging from 1-25 days (mean 7.10, SD 5.91) among survivors. Older age and the presence of shock were predictive of mortality in univariate and multivariate analyses. There was no statistically significant association in mortality between the TPE and non-TPE groups (36.84% in TPE vs. 36.17% in the non-TPE group, OR 0.7209, p=0.959). Only two patients in the non-TPE group developed CKD/ESRD on long-term follow-up. CONCLUSION Our study showed that TPE administration in critically ill patients with rhabdomyolysis did not improve mortality or length of ICU stay. Further studies are required to elucidate its indication and effect on long-term renal outcomes.
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Porosnicu TM, Sirbu IO, Oancea C, Sandesc D, Bratosin F, Rosca O, Jipa D, Boeriu E, Bandi SSS, Pricop M. The Impact of Therapeutic Plasma Exchange on Inflammatory Markers and Acute Phase Reactants in Patients with Severe SARS-CoV-2 Infection. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:medicina59050867. [PMID: 37241099 DOI: 10.3390/medicina59050867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 04/21/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023]
Abstract
Background and Objectives: Due to the poor prognosis and the very high mortality rate associated with severe SARS-CoV-2 infections, various regimens have been tried to stop the evolution of the inflammatory cascade, such as immunomodulatory therapy and plasma clearance of the acute phase reactants involved. Therefore, the objective of this review was to analyze the effects of using therapeutic plasma exchange (TPE), also known as plasmapheresis, on the inflammatory markers of critically ill COVID-19 patients admitted to the intensive care unit (ICU). Materials and Methods: A thorough scientific database search was performed, and it included a review of articles published on PubMed, Cochrane Database, Scopus, and Web of Science from the beginning of the COVID-19 pandemic in March 2020 until September 2022 that focused on the treatment of SARS-CoV-2 infections using plasma exchange for patients admitted to the ICU. The current study included original articles, reviews, editorials, and short or special communications regarding the topic of interest. Results: A total of 13 articles were selected after satisfying the inclusion criterion of three or more patients enrolled with clinically severe COVID-19 that were eligible for TPE. From the included articles, it was observed that TPE was used as a last-resort salvage therapy that can be regarded as an alternative treatment method when the standard management for these patients fails. TPE significantly decreased the inflammatory status as measured by Interleukin-6 (IL-6), C-reactive protein (CRP), lymphocyte count, and D-dimers, as well as improving the clinical status measured with PaO2/FiO2 and duration of hospitalization. The pooled mortality risk reduction after TPE was 20%. Conclusions: There are sufficient studies and evidence to show that TPE reduces inflammatory mediators and improves coagulation function and the clinical/paraclinical status. Nevertheless, although it was shown that TPE decreases the severe inflammatory status without significant complications, the improvement of survival rate remains unclear.
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Lee OPE, Kanesan N, Leow EH, Sultana R, Chor YK, Gan CS, Lee JH. Survival Benefits of Therapeutic Plasma Exchane in Severe Sepsis and Septic Shock: A Systematic Review and Meta-analysis. J Intensive Care Med 2023:8850666231170775. [PMID: 37097910 DOI: 10.1177/08850666231170775] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
Abstract
OBJECTIVES To summarize the role of therapeutic plasma exchange (TPE) in critically ill adults and children with severe sepsis. DATA COLLECTION A systematic search was performed using the following databases: Medline, EMBASE, CINAHL, and Cochrane from January 1990 till December 2022. Comparative studies of TPE in severe sepsis were selected. Adult and pediatric data were analyzed separately. DATA SYNTHESIS Eight randomized control trials and 6 observational studies (n = 50,142 patients) were included. Centrifugal TPE was the most common modality (209/280, 74.6% adults and 952/1026, 92.7% children). Every TPE study utilized different volume exchanges. Most TPE sessions (1173/1306, 89.8%) employed fresh frozen plasma (FFP) as replacement fluid and heparin as anticoagulant. Adults with severe sepsis supported with TPE using FFP had lower mortality (risk ratio, RR: 0.64 [95% confidence interval, CI: 0.49, 0.84]) compared to those who did not. In contrast, TPE was associated with increased mortality in septic children without thrombocytopenia-associated multiorgan failure (RR: 2.23, 95% CI: 1.93, 2.57). There was no difference in outcomes in patients supported with centrifugal and membrane TPE. In both populations, patients supported on TPE as a continuous regime had poorer outcome. CONCLUSION Current evidence indicates that TPE is a potential adjunct therapy in adults with severe sepsis but not in children.
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Ciorpac M, Caratașu CC, Szilagyi A, Mihai CT, Nistor I, Iliescu R, Tamba BI. A novel device and system concept for therapeutic plasma exchange in rats. Ther Apher Dial 2023. [PMID: 37039771 DOI: 10.1111/1744-9987.13989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/23/2023] [Accepted: 03/27/2023] [Indexed: 04/12/2023]
Abstract
INTRODUCTION Therapeutic plasma exchange (TPE) has been developed more than 100 years ago in an animal model and adapted to humans 30 years later. Since then, the TPE research on animal models is lacking, mainly due to difficulties raised by the scaling of the plasmapheresis unit so that the animal's cardiovascular parameters are not considerably affected. METHODS The system concept of a novel TPE device with continuous hemodynamic monitoring in small rodent models has been used. RESULTS A continuum TPE unit for rats has been developed, able to produce up to 95% plasma exchange rate without any TPE-related hemodynamic impairment, monitored up to 35 days after the procedure. CONCLUSION The TPE unit for rats was able to produce 95% plasma exchange rate in non-anesthetized animals, enabling a full translation of the human TPE into an animal model. The newly developed plasmapheresis unit enable a wide range of more accurate preclinical evaluation, with cardiac parameters monitoring, using small rodents in awaken state.
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Pandey P, Setya D, Marik A, Ranjan S, Kumari S, Mandal S, Kumar P. Single center experience of therapeutic plasma exchange in a resource-constrained setting: A study of trends in scope and complications. J Clin Apher 2023. [PMID: 37029628 DOI: 10.1002/jca.22052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/03/2023] [Accepted: 03/29/2023] [Indexed: 04/09/2023]
Abstract
BACKGROUND Therapeutic apheresis procedures are becoming an increasingly integral part of modern medical practice, be it as a part of therapy or pre-conditioning regimes for solid organ transplants. In our center, we follow the American Society for Apheresis (ASFA) guidelines for categorizing these procedures. However, lack of a centralized registry for therapeutic apheresis in India, lack of consolidated data as well as a resource-constrained setting prevent it from being utilized to its full potential. STUDY DESIGN AND METHODS This study was a retrospective analysis of therapeutic plasma exchange (TPE) procedures performed from January 2015 to October 2022 in the Department of Transfusion Medicine at a large tertiary care hospital in North India. All consecutive TPE procedures were included. Overall and specialty-wise scoring for all patients was performed. Mean scores were calculated. RESULTS A total of 1434 procedures were performed during the study duration of 7 years. These procedures were performed for 284 different patients. Majority of the procedures were referred from nephrology (895 of 1434, 62.4%), followed by neurology, gastroenterology, and liver transplant teams, hematology, critical care, rheumatology, pediatrics, and internal medicine. Complete response, partial response, and no-response were observed in 1077 (75.1%), 201 (14%), and 156 (10.9%) procedures respectively. Only 14 procedures reported adverse effects. DISCUSSION Increasing effectiveness of TPE in a number of procedures and a variety of indications has broadened its scope, while the small number of adverse events, when supervised by trained Transfusion Medicine physicians has made TPE a more viable and safer alternative to other treatment modalities.
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Zhang Y, Cheng YK, Yang CF, Jin LM, Li YM. Therapeutic plasma exchange in anti-N-methyl-D-aspartate receptor encephalitis. Ther Apher Dial 2023; 27:197-206. [PMID: 36165337 DOI: 10.1111/1744-9987.13934] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 09/05/2022] [Accepted: 09/22/2022] [Indexed: 11/29/2022]
Abstract
Anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis is the most commonly identified cause of autoimmune encephalitis. Therapeutic plasma exchange has been increasingly employed to treat this disease. This expansion is a consequence of improved techniques and apheresis instruments, as well as the recognition of its applicability in neurological diseases. However, several aspects of treatment remain incompletely clarified, and treatment strategies are still heterogeneous, especially with regard to therapeutic plasma exchange in anti-NMDAR encephalitis. This review provides an overview of the use of therapeutic plasma exchange including the principle and mechanisms, the evidence, initial time, efficiency and complications in anti-NMDAR encephalitis.
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Abdelwahab OA, Diab RA, Elsaeidy KS, Albakri K, El-Samahy M, Ramadan O, Negida A, Seif AM, Al-Alfy MN. Efficacy of therapeutic plasma exchange in patients with severe COVID-19: A systematic review and meta-analysis. Rev Med Virol 2023; 33:e2435. [PMID: 36905184 DOI: 10.1002/rmv.2435] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 03/12/2023]
Abstract
We conducted this systematic review and meta-analysis to evaluate the existing evidence and to quantitatively synthesise evidence on the impact of therapeutic plasma exchange (TPE) on severe COVID-19 patients. This systematic review and meta-analysis protocol was prospectively registered on PROSPERO (CRD42022316331). We systemically searched six electronic databases (PubMed, Scopus, Web of Science, ScienceDirect, clinicaltrial.gov, and Cochrane Central Register of Controlled Trials) from inception until 1 June 2022. We included studies comparing patients who received TPE versus those who received the standard treatment. For risk of bias assessment, we used the Cochrane risk of bias assessment tool, the ROBINS1 tool, and the Newcastle Ottawa scale for RCTs, non-RCTs, and observational studies, respectively. Continuous data were pooled as standardized mean difference (SMD), and dichotomous data were pooled as risk ratio in the random effect model with the corresponding 95% confidence intervals (CI). Thirteen studies (one randomized controlled trials (RCT) and 12 non-RCTs) were included in the meta-analysis, with a total of 829 patients. There is a moderate-quality evidence from one RCT that TPE reduces the lactic dehydrogenase (LDH) levels (SMD -1.09, 95% CI [-1.59 to -0.60]), D-dimer (SMD -0.86, 95% CI [-1.34 to -0.37]), and ferritin (SMD -0.70, 95% CI [-1.18 to -0.23]), and increases the absolute lymphocyte count (SMD 0.54, 95% CI [0.07-1.01]), There is low-quality evidence from mixed-design studies that TPE was associated with lower mortality (relative risk 0.51, 95% CI [0.35-0.74]), lower IL-6 (SMD -0.91, 95% CI [-1.19 to -0.63]), and lower ferritin (SMD -0.51, 95% CI [-0.80 to -0.22]) compared to the standard control. Among severely affected COVID-19 patients, TPE might provide benefits such as decreasing the mortality rate, LDH, D-dimer, IL-6, and ferritin, in addition to increasing the higher absolute lymphocyte count. Further well-designed RCTs are needed.
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Rattanathamsakul N, Siritho S, Viswanathan S, Hiew FL, Apiwattanakul M, Tan K, Thirugnanam UN, Yeo T, Quek AML, Estiasari R, Remli R, Aye SMM, Ohnmar O, Hoang NTT, Pasco PM. Facilities, selection, outcome measurement, and limitations of therapeutic plasma exchange for neuroimmunological disorders: The South East Asian survey study. J Clin Apher 2023. [PMID: 36896493 DOI: 10.1002/jca.22047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 01/27/2023] [Accepted: 02/21/2023] [Indexed: 03/11/2023]
Abstract
INTRODUCTION Therapeutic plasma exchange (TPE) for neuroimmunological disorders has played an important role in the Southeast Asian region. This study investigates the challenges of performing TPE within the region. METHOD A questionnaire-based survey was conducted and launched to 15 South East Asian Therapeutic Plasma Exchange Consortium (SEATPEC) members from seven countries in January 2021. It included demographics, TPE techniques, indications, challenges, timing, outcome measurement, and access to laboratory testing in each local center. RESULTS A total of 15 neurologists from 12 participating centers were included. They usually perform five sessions of TPE (100.0%), with 1 to 1.5 plasma volume (93.3%), and exchanges via the central catheter (100.0%). Acute relapses of neuromyelitis optica spectrum disorder and myasthenia gravis are the most common indications. They used a combination of normal saline and 5% albumin (60.0%) as replacement fluid. Most (66.7%) used TPE as an add-on treatment in steroid-refractory cases or as first-line treatment for severe attacks. They suggested assessing the TPE efficacy of TPE by the interval to the next attack, post-TPE relapse rates, and TPE-related complications. The major challenges within our region are expense, reimbursibility, and access to TPE. CONCLUSION Although countrywise differences exist, all share similarities regarding methods, indications, timing, obstacles, and challenges of TPE for neuroimmunological conditions. Regional collaboration will be essential to identify strategies to reduce these barriers to access to TPE in the future.
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Routray SS, Tripathy S, Das P, Ray GK. Minor Cross-Matching in the Diagnosis of Pneumococcal Hemolytic Uremic Syndrome in an 18-Month-Old Boy. Lab Med 2023; 54:215-219. [PMID: 36124770 DOI: 10.1093/labmed/lmac092] [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: 11/13/2022] Open
Abstract
In developing nations, limitations in diagnostic facilities act as a barrier for differentiation of hemolytic uremic syndrome (HUS) based on the etiology. A sick-looking 18-month-old boy presented to our hospital in Bhubaneswar, India, with clinical signs and symptoms of left lobar pneumonia, abnormal hematological and renal parameters, no growth in blood culture, a negative direct antiglobulin test (DAT) result, and low complement levels. A rapid deterioration in his clinical condition necessitated intensive care support, blood transfusion, and renal replacement therapy (peritoneal dialysis and hemodialysis). Because his health care team suspected atypical HUS, therapeutic plasma exchange (TPE) was initiated as soon as possible. In the absence of a lectin panel, minor cross-matching confirmed T-antigen exposure. With a diagnosis of HUS induced by Streptococcus pneumoniae (sp-HUS), TPE was stopped immediately, and washed blood components were administered. Despite the aforementioned measures, the boy died of HUS on day 20 after presentation. This case emphasized the role of minor cross-matching in the detecting of polyagglutination in resolving the diagnostic dilemma of sp-HUS.
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Cain S, Plapp FV, Dasgupta A, Ye Z. Severe complications in a 25-year-old male after brown recluse spider bite treated by therapeutic plasma exchange: A case report and review of other case studies. J Clin Apher 2023. [PMID: 36876877 DOI: 10.1002/jca.22045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 02/06/2023] [Accepted: 02/14/2023] [Indexed: 03/07/2023]
Abstract
Although in the majority of patients (90%), the bite wound of brown recluse spider resolves spontaneously, some patients may experience a severe reaction requiring hospitalization. A 25-year-old male developed severe hemolytic anemia, jaundice, and other complications following a brown recluse spider bite on his posterior right thigh. He was treated with methylprednisolone, antibiotics, and red blood cells (RBCs) transfusion without response. Therapeutic plasma exchange (TPE) was added to the treatment regimen, and his hemoglobin (Hb) was eventually stabilized, leading to significant clinical improvement. The beneficial effect of TPE in the current case was compared to three other reported cases. We recommend close monitoring of Hb levels in patients with systemic loxoscelism during the first week after brown recluse spider bite and early implementation of TPE in the management of severe acute hemolysis when patients do not respond to usual treatment modalities and RBC transfusion.
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Gulati K, Pusey CD. Plasma exchange as an adjunctive therapy in anti-neutrophil cytoplasm antibody-associated vasculitis. Expert Rev Clin Immunol 2023; 19:417-430. [PMID: 36860127 DOI: 10.1080/1744666x.2023.2184354] [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: 03/03/2023]
Abstract
INTRODUCTION We summarize evidence for the role of therapeutic plasma exchange (TPE) in the treatment of anti-neutrophil cytoplasm antibody (ANCA)-associated vasculitis (AAV). TPE rapidly removes ANCA IgG, complement and coagulation factors important in the pathogenesis of AAV. TPE has been used in patients with rapidly deteriorating renal function to achieve early disease control, allowing time for immunosuppressive agents to prevent resynthesis of ANCA. The PEXIVAS trial challenged the utility of TPE in AAV, as it did not show benefit of adjunctive TPE on a combined end point of end stage kidney disease (ESKD) and death. AREAS COVERED We analyze data from PEXIVAS and other trials of TPE in AAV, an up-to-date meta-analysis, and recently published large cohort studies. EXPERT OPINION There remains a role for the use of TPE in AAV in certain groups of patients, in particular those with severe renal involvement (Cr >500 μmol/L or dialysis-dependent). It should be considered in patients with Cr >300 μmol/L and rapidly deteriorating function, or with life-threatening pulmonary hemorrhage. A separate indication is patients double positive for anti-GBM antibodies and ANCA. TPE may have the greatest benefit as part of steroid-sparing immunosuppressive treatment strategies.
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Porosnicu TM, Sandesc D, Jipa D, Gindac C, Oancea C, Bratosin F, Fericean RM, Kodimala SC, Pilut CN, Nussbaum LA, Sirbu IO. Assessing the Outcomes of Patients with Severe SARS-CoV-2 Infection after Therapeutic Plasma Exchange by Number of TPE Sessions. J Clin Med 2023; 12:jcm12051743. [PMID: 36902537 PMCID: PMC10003394 DOI: 10.3390/jcm12051743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 02/24/2023] Open
Abstract
The high mortality risk in severe SARS-CoV-2 infections is tightly correlated to the extreme elevation of inflammatory markers. This acute accumulation of inflammatory proteins can be cleared using plasma exchange (TPE), commonly known as plasmapheresis, although the available data on performing TPE in COVID-19 patients is limited regarding the optimal treatment protocol. The purpose for this study was to examine the efficacy and outcomes of TPE based on different treatment methods. A thorough database search was performed to identify patients from the Intensive Care Unit (ICU) of the Clinical Hospital of Infectious Diseases and Pneumology between March 2020 and March 2022 with severe COVID-19 that underwent at least one session of TPE. A total of 65 patients satisfied the inclusion criteria and were eligible for TPE as a last resort therapy. Of these, 41 patients received 1 TPE session, 13 received 2 TPE sessions, and the remaining 11 received more than 2 TPE sessions. It was observed that IL-6, CRP, and ESR decreased significantly after all sessions were performed in all three groups, with the highest decrease of IL-6 in those who received >2 TPE sessions (from 305.5 pg/mL to 156.0 pg/mL). Interestingly, there was a significant increase in leucocyte levels after TPE, but there was no significant difference in MAP changes, SOFA score, APACHE 2 score, or the PaO2/FiO2 ratio. The ROX index was significantly higher among the patients who underwent more than two TPE sessions, with an average of 11.4, compared to 6.5 in group 1 and 7.4 in group 2, which increased significantly after TPE. Nevertheless, the mortality rate was very high (72.3%), and the Kaplan-Meier analysis identified no significant difference in survival according to the number of TPE sessions. TPE can be used as last resort salvage therapy that can be regarded as an alternative treatment method when the standard management of these patients fails. It significantly decreases the inflammatory status measured via IL-6, CRP, and WBC, as well as demonstrating an improvement of the clinical status measured via PaO2/FiO2, and duration of hospitalization. However, the survival rate does not seem to change with the number of TPE sessions. Based on the survival analysis, one session of TPE as last resort treatment in patients with severe COVID-19 proved to have the same effect as repeated TPE sessions of 2 or more.
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Luo X, Li X, Lai X, Ke L, Zhou J, Liu M, Cao L, Fu L. Therapeutic plasma exchange in patients with sepsis: Secondary analysis of a cluster-randomized controlled trial. J Clin Apher 2023; 38:55-62. [PMID: 36314372 PMCID: PMC10092885 DOI: 10.1002/jca.22027] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 09/28/2022] [Accepted: 10/13/2022] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Sepsis is life-threatening organ dysfunction caused by infection-related inflammatory response. Therapeutic plasma exchange (TPE) can remove inflammatory mediators and benefit patients in different disease settings. However, no solid evidence showed the efficacy and safety of TPE in sepsis. METHODS This study was a secondary analysis of a randomized controlled trial. Critically ill patients with sepsis were divided into two groups according to whether treated with TPE. The primary outcome was the delta Sequential Organ Failure Assessment (SOFA) score from days 1 to 7. Secondary outcomes included new-onset organ failure, intensive care unit (ICU)-free and alive days to day 28, and 28-day mortality. Propensity score-matched (PSM) analysis was applied to control confounders. Analysis of covariance (ANCOVA) and logistic regression were used to assess the association between TPE and selected outcomes. RESULTS Among the 2772 critically ill patients enrolled in the trial, 742 patients with sepsis were selected and 22 patients received TPE were matched with 22 control patients. No significant difference was found in the delta SOFA score and 28-day mortality between TPE group and control group. The ICU-free and alive days in the TPE group were significantly shorter than the control group. CONCLUSIONS TPE may be not associated with improvement of organ failure and mortality in critically ill patients with sepsis and may be associated with a prolonged ICU stay.
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Vivero A, Peedin AR, Gao Y, Karp JK. Successful treatment of pure red cell aplasia using therapeutic plasma exchange after ABO-incompatible hematopoietic stem cell transplant. J Clin Apher 2023. [PMID: 36703597 DOI: 10.1002/jca.22041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/05/2022] [Accepted: 01/06/2023] [Indexed: 01/28/2023]
Abstract
Hematopoietic stem cell transplants (HSCTs) are widely used in the treatment of hematologic malignancies and bone marrow failure syndromes. ABO compatibility is typically of secondary importance, and up to 50% of HSCT are performed in ABO-incompatible pairings. In the literature, pure red cell aplasia (PRCA) occurs in 1% to 50% of all major/bidirectional ABO-incompatible stem cell transplants, but treatment of PRCA remains heterogeneous. Here, we report two cases in which patients with transfusion-dependent PRCA following HSCT were successfully treated with therapeutic plasma exchange (TPE). Case 1: A 52-year-old type O-positive male with acute myeloid leukemia underwent HSCT using apheresis-derived HSCs from a fully human leukocyte antigen (HLA)-matched, related type A-positive male donor. He developed PRCA that was refractory to multiple therapies, so a series of 10 TPE was performed over 3 weeks. Case 2: A 21-year-old type A-positive male with aplastic anemia underwent HSCT using bone marrow-derived HSCs from a fully HLA-matched related type B-positive female donor. He developed PRCA that was refractory to multiple therapies, so a series of 5 TPE was performed over 2 weeks. Case 1: The patient has been transfusion independent since TPE #7, and type A red blood cells (RBCs) were seen on the ABO type after TPE #9. Case 2: The patient has been transfusion independent since after TPE #1, and type B RBCs were seen on the ABO type after TPE #5. TPE was successful in treating two patients with PRCA after ABO-incompatible HSCT transplants. Isoagglutinin titers decreased below the level of detection for both our patients. Ultimately both patients became transfusion independent and showed evidence of erythroid cell recovery.
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Tonev DG, Momchilova AB. Therapeutic Plasma Exchange in Certain Immune-Mediated Neurological Disorders: Focus on a Novel Nanomembrane-Based Technology. Biomedicines 2023; 11:biomedicines11020328. [PMID: 36830870 PMCID: PMC9953422 DOI: 10.3390/biomedicines11020328] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 01/26/2023] Open
Abstract
Therapeutic plasma exchange (TPE) is an efficient extracorporeal blood purification technique to remove circulating autoantibodies and other pathogenic substances. Its mechanism of action in immune-mediated neurological disorders includes immediate intravascular reduction of autoantibody concentration, pulsed induction of antibody redistribution, and subsequent immunomodulatory changes. Conventional TPE with 1 to 1.5 total plasma volume (TPV) exchange is a well-established treatment in Guillain-Barre Syndrome, Chronic Inflammatory Demyelinating Polyradiculoneuropathy, Neuromyelitis Optica Spectrum Disorder, Myasthenia Gravis and Multiple Sclerosis. There is insufficient evidence for the efficacy of so-called low volume plasma exchange (LVPE) (<1 TPV exchange) implemented either by the conventional or by a novel nanomembrane-based TPE in these neurological conditions, including their impact on conductivity and neuroregenerative recovery. In this narrative review, we focus on the role of nanomembrane-based technology as an alternative LVPE treatment option in these neurological conditions. Nanomembrane-based technology is a promising type of TPE, which seems to share the basic advantages of the conventional one, but probably with fewer adverse effects. It could play a valuable role in patient management by ameliorating neurological symptoms, improving disability, and reducing oxidative stress in a cost-effective way. Further research is needed to identify which patients benefit most from this novel TPE technology.
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Duong-Quy S, Huynh-Truong-Anh D, Tran-Xuan Q, Nguyen-Quang T, Nguyen-Thi-Kim T, Nguyen-Chi T, Tran-Ngoc-Anh T, Nguyen-Van-Hoai N, Do-Thi-Thu M, Tang-Thi-Thao T, Bui-Diem K, Hoang-Anh T, Nguyen-Ngoc-Phuong T, Nguyen-Nhu V. Bradycardia unresponded to atropin testing was successfully treated with therapeutic plasma exchange in a patient with severe COVID-19 complicated by Guillain-Barré syndrome: A case report. Front Cardiovasc Med 2023; 9:1035896. [PMID: 36741850 PMCID: PMC9892716 DOI: 10.3389/fcvm.2022.1035896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 12/29/2022] [Indexed: 01/20/2023] Open
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic has been an alarming situation worldwide for the past 2 years. The symptoms of coronavirus disease 2019 (COVID-19) are not only confined to the respiratory system but also affect a multitude of organ systems. Bradycardia associated with Guillain-Barré syndrome (GBS) is a rare autonomic and peripheral neurological complication of COVID-19. In this case report, we present the case of a 26-year-old man diagnosed with bradycardia associated with GBS after contracting COVID-19. Initially, this patient had the classical symptoms of COVID-19 and was hospitalized in the intensive care unit (ICU) for acute respiratory distress syndrome (ARDS). Then, he developed weakness in the lower extremities, diminished tendon reflexes, a loss of sensation without sphincter muscle disorders, and bradycardia. His bradycardia did not respond to atropine. The patient was treated concurrently with a high-flow nasal cannula, systemic corticosteroids, anticoagulation, and therapeutic plasma exchange (TPE) for COVID-19-induced ARDS, bradycardia, and GBS. His ARDS and bradycardia improved after the first cycle of TPE and medical treatment. After three cycles of TPE, the patient progressively recovered his muscle strength in the lower limbs and regained peripheral sensation. He was discharged from the hospital in stable condition after 4 weeks of hospitalization and was followed up after 6 months for cardiorespiratory and neurological complications. This case report elucidates the potential difficulties and challenges that physicians may encounter in diagnosing and treating COVID-19-induced bradycardia and GBS during the pandemic outbreak. However, the patient outcomes with the treatment combining the conventional treatment with therapeutic plasma exchange seem to be optimistic.
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