Journal of Clinical Apheresis最新文献

{"title":"Immunogenicity of SARS-CoV-2 vaccines in patients treated with chronic double filtration plasmapheresis","authors":"Emilie Pambrun,&nbsp;Paul Loubet,&nbsp;Thomas Fourneron,&nbsp;Olivier Moranne","doi":"10.1002/jca.22136","DOIUrl":"10.1002/jca.22136","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>The impact of chronic therapeutic plasmapheresis on humoral response following COVID-19 vaccination is poorly documented, especially among patients treated with double filtration plasmapheresis (DFPP).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Objective<b>s</b></h3>\u0000 \u0000 <p>This retrospective single-center study evaluated the humoral response after SARS-CoV-2 vaccination and studied anti-SPIKE seropositivity and antibody dynamics in patients with chronic DFPP at our institution.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Method</h3>\u0000 \u0000 <p>All patients undergoing chronic DFPP at a tertiary center in France from December 2020 to November 2022 were included. We defined one patient subgroup as Group 1 to evaluate anti-SPIKE seropositivity after vaccination, with three groups based on their anti-SPIKE titers: (Group 1A) nonresponders (&lt;0.8 UI/mL), (Group 1B) weak responders (0.8 to &lt;250 binding antibody unit [BAU]/mL), and (Group 1C) strong responders (&gt;250 BAU/mL). Group 2 served to evaluate antibody dynamics with anti-SPIKE levels measured 3 months after initial vaccination, Group 2A having a sustained level and Group 2B a declining pattern.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The 21 patients included had a median age of 63 years, and 13 (56%) were male. The indications for chronic DFPP mainly included dysimmune pathologies (15; 71%) and familial dyslipidemia (6; 29%). For the humoral response to vaccination in Patient Group 1, the only nonresponder was a patient who had undergone kidney transplantation 30 months earlier and was on immunosuppressive medication. For Patient Group 2, the median follow-up of antibody titers was 13 months [12–13]. Two distinct patterns of anti-SPIKE dynamics were observed: a rapid decline in anti-SPIKE antibody titers within 6 months following the initial vaccination or booster dose (<i>n</i> = 10 [71.4%] Group 2A) and stable anti-SPIKE levels above 250 BAU/mL over &gt;6 months (<i>n</i> = 4 [28.6%] Group 2B) with more patients with familial dyslipidemia in the former.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Humoral response to SARS-CoV-2 vaccination appears robust in patients undergoing chronic DFPP and may be linked to patients' immune status rather than DFPTP itself. Our results support current recommendations for administering three doses of vaccine with a booster every 6 months.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15390,"journal":{"name":"Journal of Clinical Apheresis","volume":"39 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jca.22136","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141457112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Therapeutic plasma exchange as treatment modality in pediatric patients with neurologic and nonneurologic diseases at the Philippine Children's Medical Center: A 12-year single center experience","authors":"Alexander B. Suplico Jr,&nbsp;Maria Beatriz P. Gepte","doi":"10.1002/jca.22137","DOIUrl":"https://doi.org/10.1002/jca.22137","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>To determine the clinical characteristics, indications, technical aspects, complications, and outcomes of therapeutic plasma exchange (TPE) procedures performed in pediatric patients with neurologic and nonneurologic diseases at the Philippine Children's Medical Center during a 12-year period (January 2010–March 2023).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>All TPE performed between January 2010 and March 2023 were retrospectively evaluated. The indications for TPE were classified according to the 2019 American Society for Apheresis (ASFA) categorization.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Fifty-seven patients underwent a total of 297 TPE procedures. The median age was 12 years (2–18), with 51% male (<i>n</i> = 29) and 49% female (<i>n</i> = 28). The most common indication was <i>N</i>-methyl-<span>d</span>-aspartate receptor antibody encephalitis, accounting for 54% of cases (<i>n</i> = 31), followed by Guillain-Barré syndrome at 16% (<i>n</i> = 9), Hemolytic Uremic Syndrome at 7% (<i>n</i> = 4), and Sepsis with multiorgan failure at 7% (<i>n</i> = 4). Forty-one patients (71.8%) were classified under ASFA category 1, seven (12.4%) as category II, and nine (15.8%) as category III. All TPE procedures were conducted using the centrifugation technique and citrate anticoagulation. Ninety-nine percent of the procedures were performed through the internal jugular vein. Albumin was utilized as a replacement fluid in 88% of the procedures. Most complications were related to patient factors and occurred in 10% of cases (<i>n</i> = 31), while problems associated with the extracorporeal circuit were observed in only 4.37% of cases (<i>n</i> = 13). Overall response rate was 91% and there was no TPE-related deaths. No clear association was found between clinical responses to TPE and specific diagnoses within ASFA categories.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>TPE is a safe and effective adjuvant treatment for pediatric patients with neurologic and nonneurologic diseases. The outcome in these patients requiring TPE is excellent. However, response varies with failed organs and the need for life-sustaining therapies.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15390,"journal":{"name":"Journal of Clinical Apheresis","volume":"39 3","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141441326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interest of therapeutic plasmapheresis in a chronic hemodialysis patient with severe bullous pemphigoid","authors":"Pedram Ahmadpoor,&nbsp;Mathilde Beck,&nbsp;Moise Michel,&nbsp;Emilie Pambrun,&nbsp;Pierre Stoebner,&nbsp;Olivier Moranne","doi":"10.1002/jca.22133","DOIUrl":"10.1002/jca.22133","url":null,"abstract":"<p>Bullous pemphigoid is the most common autoimmune blistering disease induced by autoantibodies against basement membrane anchoring proteins (anti-BP-180 and anti-BP-230). The disease generally appears after the age of 70 and is associated with a 23.5% 1-year mortality, especially in diabetics, or in the presence of ischemic heart disease and high anti-BP-180. Treatment starts with topical steroids but some patients may require oral steroids and systemic immunosuppression. We, hereby, discuss a diabetic patient on chronic hemodialysis, with severely relapsed bullous pemphigoid under biotherapy with omalizumab, who was successfully treated with five sessions of double filtration plasmapheresis, thus avoiding the need for systemic steroids.</p>","PeriodicalId":15390,"journal":{"name":"Journal of Clinical Apheresis","volume":"39 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jca.22133","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141331045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Therapeutic plasma exchange provides native liver survival benefit in children with acute liver failure: A propensity score-matched analysis","authors":"Tamoghna Biswas,&nbsp;Bikrant Bihari Lal,&nbsp;Vikrant Sood,&nbsp;Avalareddy Ashritha,&nbsp;Ashish Maheshwari,&nbsp;Meenu Bajpai,&nbsp;Guresh Kumar,&nbsp;Rajeev Khanna,&nbsp;Seema Alam","doi":"10.1002/jca.22130","DOIUrl":"10.1002/jca.22130","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>This study aimed to evaluate the safety and efficacy of therapeutic plasma exchange (TPE) in pediatric acute liver failure (PALF).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>All children aged 2-18 years with PALF were included. The intervention cohort included a subset of PALF patients undergoing complete three sessions of TPE, whereas the matching controls were derived by propensity score matching from the patient cohort who did not receive any TPE. Propensity matching was performed based on the international normalized ratio (INR), grade of hepatic encephalopathy (HE), age, bilirubin, and ammonia levels. The primary outcome measure was native liver survival (NLS) in the two arms on day 28.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Of the total cohort of 403 patients with PALF, 65 patients who received TPE and 65 propensity-matched controls were included in analysis. The 2 groups were well balanced with comparable baseline parameters. On day 4, patients in the TPE group had significantly lower INR (<i>P</i> = 0.001), lower bilirubin (<i>P</i> = 0.008), and higher mean arterial pressure (MAP) (<i>P</i> = 0.033) than controls. The NLS was 46.15% in the TPE arm and 26.15% in the control arm. The overall survival (OS) was 50.8% in the TPE arm and 35.4% in the control arm. Kaplan-Meier survival analysis showed a significantly higher NLS in patients receiving TPE than controls (<i>P</i> = 0.001). On subgroup analysis, NLS benefit was predominantly seen in hepatitis A-related and indeterminate PALF.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>TPE improved NLS and OS in a propensity-matched cohort of patients with PALF. Patients receiving TPE had lower INR and bilirubin levels and higher MAP on day 4.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15390,"journal":{"name":"Journal of Clinical Apheresis","volume":"39 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141317440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of efficacy of plasma exchange versus intravenous immunoglobulin as an add-on therapy in acute attacks of neuromyelitis optica spectrum disorder","authors":"Garima Siwach,&nbsp;Rekha Hans,&nbsp;Aastha Takkar,&nbsp;Chirag Kamal Ahuja,&nbsp;Divjot Singh Lamba,&nbsp;Vivek Lal,&nbsp;Ratti Ram Sharma","doi":"10.1002/jca.22129","DOIUrl":"10.1002/jca.22129","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Introduction</h3>\u0000 \u0000 <p>Plasma exchange (PE) is considered a Category II option for the treatment of acute attacks and relapse cases of neuromyelitis optica spectrum disorder (NMOSD). However, neurologists are also considering intravenous immunoglobulins (IVIg) as an add-on therapy for this disorder.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Aims</h3>\u0000 \u0000 <p>The aim of this study is to evaluate the efficacy of PE in acute attacks of NMOSD when compared with IVIg, in terms of improvement in the Expanded disability status scale (EDSS) and activities of daily living (ADL) scale score and levels of anti-Aquaporin P4 (AQP4) antibody in seropositive patients.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We enrolled 43 NMOSD patients in two groups: Group 1 (<i>n</i> = 29) received steroids and PE, and Group 2 (<i>n</i> = 14) received steroids with IVIg. The baseline EDSS and ADL scores were recorded and compared with scores at the end of therapy, 4 weeks, and 3 months after. Also, anti-AQP4 antibody was measured at baseline and post-therapy in seropositive patients of both groups.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We observed a significant difference in EDSS (<i>p</i> = 0.00) and ADL score (<i>p</i> = 0.00) at day 10 and 3 months in both groups. However, no significant difference in EDSS, as well as ADL score from baseline (<i>p</i> = 0.83; <i>p</i> = 0.25) to 3 months (<i>p</i> = 0.85; <i>p</i> = 0.19), was observed when delta change of score at 3 months was compared across the two groups (<i>p</i> = 0.39; <i>p</i> = 0.52). We observed improved visual acuity in both groups with mild improvement in findings of magnetic resonance imaging at 3 months. We observed a significant decline in AQP4 antibody concentration (at day 10) in group 1 seropositive patients (<i>p</i> = 0.013) with improved EDSS (<i>p</i> = 0.027) and ADL scores (<i>p</i> = 0.026) of these patients.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>PE should be considered as a choice of an add-on therapy in anti-AQP4 antibody-positive NMOSD patients compared with IVIg as it is more effective in reducing antibody concentrations.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15390,"journal":{"name":"Journal of Clinical Apheresis","volume":"39 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141288170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Therapeutic plasma exchange combined with ribavirin to rescue critical SFTS patients","authors":"Xuezhen Song,&nbsp;Xiaojun Xu,&nbsp;Xiaoning Ren,&nbsp;Xiaoxuan Ruan,&nbsp;Jinshuang Bo","doi":"10.1002/jca.22131","DOIUrl":"10.1002/jca.22131","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Severe fever with thrombocytopenia syndrome (SFTS) is a zoonotic infectious disease caused by the severe fever with thrombocytopenia syndrome virus (SFTSV). Endemic in East Asia, SFTS is characterized by an exceptionally high mortality rate. Presently, there is no established treatment for SFTS, particularly for patients in critical condition. In this study, we collected and analyzed laboratory and clinical data from 92 critically ill patients with SFTS treated at Weihai Municipal Hospital between 2019 and 2022. We hope that our study will provide some hints for the treatment of critically ill patients with SFTS.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>A total of 92 critically ill patients with SFTS were included in this study. Of these patients, 45 received treatment with therapeutic plasma exchange (TPE) and ribavirin (referred to as the TPE group), while the remaining patients received only ribavirin (referred to as the non-TPE group). Clinical and laboratory parameters were analyzed retrospectively.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The results showed significant improvements in multiple laboratory parameters following treatment with TPE and ribavirin, including white blood cell and neutrophil count, lactate dehydrogenase, creatine kinase isoenzyme-MB, prothrombin time, activated partial thromboplastin time, D-Dimer, serum sodium and copies of virus genomes. The combination of TPE with ribavirin demonstrated a significant reduction in mortality rates, with a mortality rate of 20.0% in the TPE group compared to 40.4% in the non-TPE group (<i>P</i> = 0.033).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Our findings suggest that critically ill patients with SFTS who received TPE and ribavirin experienced improvements in both clinical and laboratory parameters. These results indicate that TPE combined with ribavirin may represent a promising novel therapeutic approach for managing critically ill patients with SFTS. However, comparative studies of large sample size or randomized clinical trials are warranted to confirm the effectiveness of this combination therapy in the treatment of severe SFTS cases.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15390,"journal":{"name":"Journal of Clinical Apheresis","volume":"39 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141288171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Early extracorporeal photopheresis treatment is associated with better survival in patients with chronic or recurrent acute lung allograft dysfunction","authors":"Fiorenza Gautschi,&nbsp;Tobias Vogelmann,&nbsp;Gernot Ortmanns,&nbsp;Fabian Knörr,&nbsp;Carolin Steinack,&nbsp;René Hage,&nbsp;Mirjam Nägeli,&nbsp;Macé Matthew Schuurmans","doi":"10.1002/jca.22128","DOIUrl":"10.1002/jca.22128","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Due to development of chronic lung allograft dysfunction (CLAD), prognosis for patients undergoing lung transplantation (LTx) is still worse compared to other solid organ transplant recipients. Treatment options for slowing down CLAD progression are scarce with extracorporeal photopheresis (ECP) as an established rescue therapy. The aim of the study was to identify characteristics of responders and non-responders to ECP treatment, assess their survival, lung function development and by that define the subset of patients who should receive early ECP treatment.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We performed a retrospective study of all LTx patients receiving ECP treatment at the University Hospital Zurich between January 2010 and March 2020. Patients were followed-up for a maximum period of 5 years. Mortality and lung function development were assessed by CLAD stage and by CLAD subtype before initiation of ECP treatment.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Overall, 105 patients received at least one ECP following LTx. A total of 57 patients (61.3%) died within the study period with a median survival of 15 months. Mortality was 57% for patients who started ECP at CLAD1, 39% for CLAD2, 93% for CLAD3, and 90% for CLAD4 (<i>p</i> &lt; 0.001). Survival and lung function development was best in young patients at early CLAD stages 1 and 2. Response to ECP treatment was worst in patients with CLAD-RAS/mixed subtype (14.3%) and patients with ECP initiation in CLAD stages 3 (7.1%) and 4 (11.1%). Survival was significantly better in a subset of patients with recurrent acute allograft dysfunction and earlier start of ECP treatment (105 vs 15 months).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>In this retrospective analysis of a large group of CLAD patients treated with ECP after LTx, early initiation of ECP was associated with better long-term survival. Besides a subset of patients suffering of recurrent allograft dysfunction, especially a subset of patients defined as responders showed an improved response rate and survival, suggesting that ECP should be initiated in early CLAD stages and young patients. ECP might therefore prevent long-term disease progression even in patients with CLAD refractory to other treatment options and thus prevent or delay re-transplantation.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15390,"journal":{"name":"Journal of Clinical Apheresis","volume":"39 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jca.22128","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141200100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing autologous stem cell collections for patients with multiple myeloma receiving G-CSF and Plerixafor: A single center project","authors":"Ayda Javanbakht,&nbsp;Stephanie Stringer,&nbsp;Hollie Anderson,&nbsp;Ellie Hamilton,&nbsp;Anisha Philip,&nbsp;Edmund K. Waller,&nbsp;Amelia A. Langston,&nbsp;Nisha Joseph,&nbsp;John D. Roback,&nbsp;Thomas Schneider,&nbsp;H. Cliff Sullivan,&nbsp;Jeanne E. Hendrickson","doi":"10.1002/jca.22127","DOIUrl":"10.1002/jca.22127","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Increasing indications for cellular therapy collections have stressed our healthcare system, with autologous collections having a longer than desired wait time until apheresis collection. This quality improvement initiative was undertaken to accommodate more patients within existing resources.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Study Design and Methods</h3>\u0000 \u0000 <p>Patients with multiple myeloma who underwent autologous peripheral blood stem cell collection from October 2022 to April 2023 were included. Demographic, mobilization, laboratory, and apheresis data were retrospectively collected from the medical record.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>This cohort included 120 patients (49.2% male), with a median age of 60 years. All received G-CSF and 95% received pre-emptive Plerixafor approximately 18 hours pre-collection. Most (79%) had collection goals of at least 8 × 10⁶/kg CD34 cells, with 63% over 70 years old having this high collection goal (despite 20 years of institutional data showing &lt;1% over 70 years old have a second transplant). With collection efficiencies of 55.9%, 44% of patients achieved their collection goal in a single day apheresis collection. A platelet count &lt;150 × 10³/μL on the day of collection was a predictor for poor mobilization; among 27 patients with a low baseline platelet count, 17 did not achieve the collection goal and 2 failed to collect a transplantable dose.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>With minor collection goal adjustments, 15% of all collection appointments could have been avoided over this 6-month period. Other strategies to accommodate more patients include mobilization modifications (Plerixafor timing or substituting a longer acting drug), utilizing platelet counts to predict mobilization, and modifying apheresis collection volumes or schedule templates.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15390,"journal":{"name":"Journal of Clinical Apheresis","volume":"39 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141158300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Successful management of maternal anti-PP1Pk alloimmunization in pregnancy with therapeutic plasma exchange and intravenous immunoglobulin","authors":"Yannis Hadjiyannis,&nbsp;Jennifer M. Jones,&nbsp;Irina Chibisov,&nbsp;Joseph Kiss,&nbsp;Kim Gabert,&nbsp;Joan Sevcik,&nbsp;Suzanne Bakdash,&nbsp;Anna Binstock,&nbsp;Carolyn Kilonsky,&nbsp;Kristiina Parviainen,&nbsp;Alesia Kaplan","doi":"10.1002/jca.22120","DOIUrl":"https://doi.org/10.1002/jca.22120","url":null,"abstract":"<p>Anti-PP1P^K alloimmunization is rare given ubiquitous P1PK expression. Prevention of recurrent miscarriages and hemolytic disease of the fetus and newborn (HDFN) in pregnant individuals with anti-PP1P^K antibodies has relied upon individual reports. Here, we demonstrate the successful management of maternal anti-PP1P^K alloimmunization in a 23-year-old, G2P0010, with therapeutic plasma exchange (TPE), intravenous immunoglobulin (IVIG), and monitoring of anti-PP1P^k titers. Twice-weekly TPE (1.5 plasma volume [PV], 5% albumin replacement) with weekly titers and IVIG (1 g/kg) was initiated at 9 weeks of gestation (WG). The threshold titer was ≥16. Weekly middle cerebral artery-peak systolic velocities (MCA-PSV) for fetal anemia monitoring was initiated at 16 WG. PVs were adjusted throughout pregnancy based on treatment schedule, titers, and available albumin. Antigen-negative, ABO-compatible RBCs were obtained through the rare donor program and directed donation. An autologous blood autotransfusion system was reserved for delivery. Titers decreased from 128 to 8 by 10 WG. MCA-PSV remained stable. At 24 WG, TPE decreased to once weekly. After titers increased to 32, twice-weekly TPE resumed at 27 WG. Induction of labor was scheduled at 38 WG. Vaginal delivery of a 2950 g neonate (APGAR score: 9, 9) occurred without complication (Cord blood: 1+ IgG DAT; Anti-PP1P^k eluted). Newborn hemoglobin and bilirubin were unremarkable. Discharge occurred postpartum day 2. Anti-PP1P^k alloimmunization is rare but associated with recurrent miscarriages and HDFN. With multidisciplinary care, a successful pregnancy is possible with IVIG and TPE adjusted to PV and titers. We also propose a patient registry and comprehensive management plan.</p>","PeriodicalId":15390,"journal":{"name":"Journal of Clinical Apheresis","volume":"39 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140907051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Therapeutic apheresis in kidney transplantation: Emerging trends","authors":"Chimezie Godswill Okwuonu,&nbsp;Monarch Shah,&nbsp;Iram Rafique,&nbsp;Abdallah Saleh Abdelrazeq,&nbsp;Jeanne Kamal,&nbsp;Swati Rao,&nbsp;Rasheed Abiodun Balogun","doi":"10.1002/jca.22119","DOIUrl":"https://doi.org/10.1002/jca.22119","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Introduction</h3>\u0000 \u0000 <p>The use of therapeutic apheresis (TA) either as stand-alone or adjunctive treatment in kidney transplantation has increased over the years to become a leading indication. This study shows recent trends in indications for TA related to kidney transplantation, adverse events, and patient outcome in this cohort.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>This is a retrospective cohort review of adults who received TA for kidney transplant-related indications from January 1, 2017, to December 31, 2022, at the University of Virginia Medical Centre, Charlottesville, VA, USA. Data extracted include basic demographics, indication for apheresis, number of procedures, procedure characteristics, procedure-related adverse events (complications), and serum ionized calcium and serum creatinine. Data were analyzed using statistical package for social sciences (SPSS 2022 IBM Inc).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Data from a total of 131 patients who received 860 TA procedures were analyzed. Indications for TA were antibody-mediated rejection (65.5%), recurrent focal segmental glomerulosclerosis (15%), thrombotic microangiopathy (5%), desensitization for ABO incompatibility (4.5%) and for HLA-incompatibility (4.5%), and recurrent IgA nephropathy (1%). Some adverse events were encountered in 16.7% of the procedures and include hypocalcemia (7%), vascular access malfunction (0.7%), hypotension (1.2%), arrhythmia (0.6%), and depletion coagulopathy (0.6%). The overall case mortality rate was 8.4% over the 6-year period. There was one death recorded on machine during TA resulting in a procedure-mortality rate of 0.12%.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Antibody-mediated rejection was the most common indication for TA related to kidney transplantation. Adverse events were minor and patient survival over the time was within usual limits.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15390,"journal":{"name":"Journal of Clinical Apheresis","volume":"39 3","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jca.22119","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140844705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}