Isaacs� syndrome-possible etiopathogenesis and clinical aspects: a case report

Isaacs� syndrome (IS) is a rare condition which is characterized by peripheral nerve hyperexcitability which is due to continuous motor activity. The exact etiology for this condition is unknown yet there are several etiopathologies like autoimmune, genetic, or hereditary which can be an etiology for the IS. In our case report the likely etiology is autoimmune. Its clinical feature includes fasciculation, myokymia, and hyperhidrosis. To confirm the diagnosis mostly imaging methods of examination are performed like MRI, ultrasound, and EMG. In our patient MRI and EMG examination was performed. There are no particular therapeutic treatments that can help in this condition only symptomatic treatment can be delivered. Plasma exchange has a promising outcome for a momentary. In our case report, we propose the possible etiology of the condition.

Bone density and bone metabolism in plasmapheresis donors / 中国输血杂志

【Objective】 To investigate the level of serum bone metabolism and biochemical markers and bone density of plasmapheresis donors, and to provide scientific basis for ensuring the health and safety of plasmapheresis donors in China. 【Methods】 A total of 437 plasmapheresis donors from Linwu plasmapheresis station in Hunan Province from July 1 to September 30, 2022 were recruited to determine the levels of total serum calcium, albumin, serum 25-hydroxyvitamin D (25OHD), serum type I procollagen N-terminal propeptide (P1NP), and collagen type 1 crosslinked carboxyl-terminal peptide (β-CTX). Dual-energy X-ray method was used to measure the bone density of the anteroposterior lumbar spine (L1-L4) and bilateral femoral neck bone density of plasmapheresis donors. Plasmapheresis donors were grouped according to the type of plasma donation (first-time and repeat plasmapheresis donors) and the total number of plasma donations to assess the differences in bone density and serum bone metabolism biochemical markers between groups. The dose-response relationship between the total number of plasmapheresis donations and biochemical indexes was analyzed by limiting cubic spline, and the influencing factors of different indexes were explored by multiple linear regression. 【Results】 A total of 437 plasmapheresis donors were included in this study, including 187 first-time plasmapheresis donors and 250 repeat plasmapheresis donors. There were no significant differences in bone density and prevalence of osteoporosis between first-time donors and repeat donors (P>0.05). There was also no significant difference in bone density levels between groups of total number of plasmapheresis donations. The levels of albumin and 25OHD decreased with the increase of the total number of plasma donations, while the serum P1NP level was positively correlated with the total number of plasma donations. The results of the restriction cubic spline showed that the total number of plasmapheresis donations had a nonlinear dose-response relationship with 25OH and P1NP (P<0.05). The results of multiple linear regression showed that the frequency of plasmapheresis donation was the influencing factor of 25OHD, and the total number of plasmapheresis donation was the influencing factor of P1NP. 【Conclusion】 Plasmapheresis donation does not affect the bone health of donors and increase the risk of osteoporosis due to the use of long-term anticoagulants, but it will increase the osteogenic activity of plasmapheresis donors. It is recommended that middle-aged and elderly plasmapheresis donors supplement vitamin D appropriately.

Near-fatal cocaine intoxication in an infant with thrombotic microangiopathy associated with multiple organ failure / Intoxicação grave por cocaína em criança com microangiopatia trombótica associada à falência múltipla de órgãos

ABSTRACT Objective: To report a pediatric case of drug-induced thrombotic microangiopathy caused by cocaine Case description: We report a nine-month-old patient who developed thrombotic microangiopathies after extreme cocaine intoxication, multiple organ dysfunction syndrome with hemodynamic dysfunction, anuric renal failure, liver failure, encephalopathy, and myocardial injury, corresponding phenotypically to thrombocytopenia-associated multiple organ failure. The patient received continuous venous hemofiltration and therapeutic plasma exchange, recovering satisfactorily. She was discharged after 30 days of hospitalization under the guidance of the childcare service, and was healthy after one year of follow-up. Toxicological samples confirmed high levels of cocaine and derivatives in blood, urine and hair. Comments: To our knowledge, this is the first reported pediatric case. There are particularities of cocaine intoxication pathophysiology that can trigger thrombotic microangiopathies because of vasoconstriction, direct endothelial injury, platelet activation, and increasing von Willebrand factor and fibrinogen levels. All of which results in a prothrombotic state, inflammatory dysregulation, and microvascular thrombi. The increasing use of cocaine, especially among young adults, puts children at high risk of toxicity, either by passive unintentional exposure, or abuse due to the increased availability in homes.

RESUMO Objetivo: Relatar um caso pediátrico de microangiopatia trombótica induzida por drogas causada por cocaína Descrição do caso: Relatamos uma paciente de nove meses de idade que desenvolveu microangiopatia trombótica após intoxicação extrema por cocaína, síndrome de disfunção de múltiplos órgãos com disfunção hemodinâmica, insuficiência renal anúrica, insuficiência hepática, encefalopatia e lesão miocárdica, correspondendo fenotipicamente à falência múltipla de órgãos associada à trombocitopenia. A paciente recebeu hemofiltração venosa contínua e plasmaférese terapêutica, recuperando-se satisfatoriamente. Recebeu alta após 30 dias de internação sob orientação do serviço de puericultura e estava saudável após um ano de seguimento. Amostras toxicológicas confirmaram altos níveis de cocaína e derivados no sangue, urina e cabelos. Comentários: Até onde sabemos, este é o primeiro caso pediátrico relatado. Existem particularidades da fisiopatologia da intoxicação por cocaína que podem desencadear a microangiopatia trombótica devido à vasoconstrição, lesão endotelial direta, ativação plaquetária e aumento do fator de von Willebrand e dos níveis de fibrinogênio. Tudo isso resulta em um estado pró-trombótico, desregulação inflamatória e trombos microvasculares. O uso crescente de cocaína, principalmente entre adultos jovens, coloca as crianças em alto risco de toxicidade, seja por exposição passiva não intencional ou abuso devido à maior disponibilidade nas residências.

Guillain-Barré syndrome: a review of immunotherapy, rehabilitation, and long-term outcomes

Guillain-Barré syndrome (GBS) is a complex autoimmune disorder characterized by the rapid onset of motor weakness and sensory disturbances, often precipitated by preceding infections. GBS is considered a rare disorder, with an estimated annual incidence ranging from 0.6 to 4.0 cases per 100,000 individuals. It constitutes a medical emergency due to its potential for severe disability or mortality. The hallmark clinical features of GBS include progressive symmetric muscle weakness and sensory disturbances. Diagnosis relies on clinical evaluation, cerebrospinal fluid analysis, and electrodiagnostic studies, with the Brighton criteria providing standardized diagnostic criteria. The hallmark clinical features include progressive symmetric muscle weakness, sensory deficits, and areflexia or hyporeflexia. The management of GBS primarily involves supportive care and immunomodulatory therapies. Plasmapheresis, or plasma exchange, and intravenous immunoglobulin (IVIG) are the mainstay treatments aimed at modulating the immune response and shortening the illness duration. Rehabilitation, encompassing physical and occupational therapy, is pivotal for restoring functionality and improving long-term outcomes.

Tratamiento con sostén extracorpóreo en malaria grave / Extracorporeal support treatment in severe malaria

Resumen La malaria es una enfermedad con amplia distribu ción en áreas tropicales. En su forma grave se caracteriza por afección orgánica y/o hiperparasitemia. Se definen los criterios para el monitoreo temprano en las salas de terapia intensiva, debido a que sin tratamiento oportu no y precoz la malaria grave tiene una mortalidad de 100%. Si bien no es amplia la literatura en este aspecto la terapia extracorpórea en forma secuencial para de toxificación hepática y renal es una herramienta útil y segura que puede ser utilizada en terapia intensiva. Se describe un caso de un varón de 36 años con diagnóstico de malaria grave según criterio de la Organización Mun dial de la Salud (OMS) que comenzó con tratamiento con artesunato endovenoso y por evolución tórpida, ascenso brusco de bilirrubinemia con encefalopatía, parámetros de lesión renal aguda y edema agudo de pulmón, realiza tratamiento extracorpóreo secuencial, plasma filtración acoplada a adsorción, plasmaféresis de alto intercambio y hemodiafiltración continua con evolución favorable. En conclusión, el caso presentado nos demuestra que el rol del sostén extracorpóreo en manos entrenadas y en forma oportuna es crucial cuando el fallo de órganos evoluciona rápidamente para lograr dar estabilidad y otorgar el tiempo necesario para la acción del tratamien to definitivo en este caso, los antimaláricos de acción rápida hasta negativización de la parasitemia.

Abstract Malaria is a wide-spread disease in tropical areas. The severe form is characterized by organic involve ment and/or hyperparasitaemia. Criteria for early monitoring in intensive care rooms are defined; with out a timely and early treatment, severe malaria has a 100% mortality. Although the literature in these cases is not extensive, extracorporeal therapy used sequentially for hepatic and renal detoxification is a useful and safe tool that can be used in intensive care. We describe the case of a 36-year-old man with a diag nosis of severe malaria according to WHO criteria. He began treatment with intravenous artesunate and due to a torpid evolution, a sudden increase in bilirubine mia with encephalopathy, parameters of acute kidney injury and acute pulmonary edema, undergoes extra corporeal sequential treatment, coupled with plasma filtration adsorption, high-exchange plasmapheresis, and continuous hemodiafiltration with favorable evo lution. This case shows that extracorporeal support in trained hands and in a timely manner is effective when organ failure evolves rapidly to achieve stability and provide necessary time for definitive treatment, in this case rapid action antimalarials until parasitemia becomes negative.

Thyroid storm and COVID-19 with a need for plasmapheresis / Tormenta tiroidea y COVID-19 con necesidad de plasmaféresis

Abstract Thyroid storm is a life-threatening exacerbation of thyrotoxicosis. It is characterized by tachycardia, hyperthermia, an altered state of consciousness and dysfunction of other organs. It is a clinical emergency; without early recognition and treatment it may be fatal. Since the pandemic began, SARS-CoV-2 infection has triggered endocrine emergencies like diabetic ketoacidosis and thyrotoxicosis. We present the case of a patient with COVID-19 and thyroid storm, who, to our knowledge, is the first patient to have this combination of illnesses, and who required treatment with plasmapheresis. (Acta Med Colomb 2022; 48. DOI:https://doi.org/10.36104/amc.2023.2707).

Resumen La tormenta tiroidea es una exacerbación de la tirotoxicosis que amenaza la vida, se caracteriza por taquicardia, hipertermia, alteración del estado de conciencia y disfunción de otros órganos. Es una emergencia clínica, sin reconocimiento temprano y el tratamiento puede ser fatal. Desde el comienzo de la pandemia, la infección por SARS-CoV-2 ha precipitado la aparición de emergencias endocrinológicas tales como la cetoacidosis diabética y la tirotoxicosis. Nosotros presentamos el caso de un paciente que cursó con infección por COVID-19 y tormenta tiroidea; siendo el primer paciente, a nuestro saber, con esta combinación de patologías que requiere para su tratamiento plasmaféresis. (Acta Med Colomb 2022; 48. DOI:https://doi.org/10.36104/amc.2023.2707).

Immunoadsorption therapy in refractory heart failure patients with dilated cardiomyopathy: a potential therapeutic option

SUMMARY OBJECTIVE: Removal of cardiac autoantibodies by immunoadsorption might confer clinical improvement in dilated cardiomyopathy. In this pilot study, we investigated the efficacy and safety of immunoadsorption therapy in refractory heart failure patients with dilated cardiomyopathy. METHODS: This study consisted of 9 heart failure patients with dilated cardiomyopathy, NYHA III-IV, left ventricular ejection fraction <30%, unresponsive to heart failure therapy, and with cardiac autoantibodies. Patients underwent immunoadsorption therapy for five consecutive days using a tryptophan column. Changes in cardiac function (left ventricular ejection fraction, left ventricular end-diastolic diameter, left ventricular end-systolic diameter), exercise capacity (6-minute walk distance), neurohormonal (N-terminal pro-brain natriuretic peptide), proinflammatory (high-sensitive C-reactive protein), and myocardial (cardiac troponin-I), biochemical, and hematological variables were obtained at baseline and after 3 and 6 months of immunoadsorption therapy. RESULTS: Mean left ventricular ejection fraction and 6-minute walk distance significantly increased at 3 months (from 23.27±5.09 to 32.1±1.7%, p=0.01 for left ventricular ejection fraction and from 353±118 to 434±159 m, p=0.04 for 6-minute walk distance) and further increased at 6 months after immunoadsorption therapy (to 34.5±7.7%, p=0.02 for ejection fraction and to 441±136 m, p=0.04 for 6-minute walk distance). NT-proBNP level reduced from 1161(392.8-3034) to 385(116.1-656.5) ng/L (p=0.04), and high-sensitive C-reactive protein decreased from 9.74±0.96 to 4.3±5.8 mg/L (p=0.04) at 6 months. Left ventricular end-diastolic diameter (66.1±5.8 vs. 64.7±8.9 mm) and left ventricular end-systolic diameter (56.1±8.6 vs. 52.3±10.8 mm) tended to decrease but did not reach statistical significance. No significant worsening was observed in creatinine, cardiac troponin-I, and hemoglobin levels after the immunoadsorption procedure. CONCLUSION: In dilated cardiomyopathy patients with refractory heart failure, immunoadsorption may be considered a potentially useful therapeutic option to improve a patient's clinical status.

Investigation and analysis of characteristics and mobility of the overlapping population of voluntary blood donation and plasmapheresis donation / 中国输血杂志

【Objective】 To analyze the characteristics and mobility of the overlapping population of voluntary blood donation and plasmapheresis donation, so as to provide a scientific basis for the formulation of recruitment and retention strategies for blood donation and plasmapheresis donation, and to further propose a scientific reference for the decision-making of blood banks and plasmapheresis station management in China. 【Methods】 The basic information of blood donors and plasmapheresis donors in two counties in Guangyuan, Sichuan Province, which carried out whole blood collection and plasmapheresis collection from the establishment of the station to July 31, 2021 was statistically compared and analzed using the chi-square test and Post hoc testing test. 【Results】 As of July 31, 2021, a total of 50 658 people participated in blood donation and 63 375 people participated in plasmapheresis donation in Jiange County and Cangxi County, with a total overlap of 6 189 people. In the two regions, 16 458 (35.2%) people aged 40 to 50, and 35 558 people (56.1%) were over 50 years old. Among the overlapping population, 2 496 (40.3%) were 40 to 50 years old, accounted for the largest proportion, and 3 146 (50.8%) were males. Significant differences were noticed in age (P<0.001) and gender (P<0.001). There was a shift in dontion in 5 183, including 2 072 people from plasma to blood and 3 111 people from blood to plasma, among which 2 671 (51.5%) were men and 3 632 (70.1%) were over 50 years old, with significant differences in gender (P<0.05) and age (P<0.001). 【Conclusion】 There were a small number of donors donating both blood and plasma in Jiange and Cangxi, and men aged 40 to 50 were the majority, and people over 50 years old were more likely to shift the donation goals. The vast majority of donors have a single and fixed donation goal (blood or plasma), and are not easy to change.

Analysis of the impact of setting up plasmapheresis station on the collection volume of voluntary blood donation based on panel vector autoregressive model / 中国输血杂志

【Objective】 To analyze the dynamic relationship between the setting up of plasmapheresis station and the volume of voluntary blood donation collected using panel vector autoregressive model, so as to provide scientific reference for the management policies of blood stations and plasmapheresis stations in China. 【Methods】 The data collected from blood stations in seven administrative regions of Guangyuan, Sichuan Province from 2011 to 2021, as well as plasma collection data from two plasmapheresis stations in the region within two years since their operation, were collected. A panel vector autoregressive model was constructed. Impulse response analysis and variance decomposition analysis were used to analyze the impact and time lag effects of simulated plasmapheresis station settings on the collection volume of voluntary blood donation. Covariance analysis was used to explore whether the establishment of plasmapheresis station had an impact on the volume of voluntary blood donation collected after excluding the impact of initial value differences. 【Results】 The pulse response results showed that after the plasmapheresis station was set up, there was a negative impact effect on the voluntary blood donation collection volume at the first stage, and its impact began to rise after the second stage, reached the highest value in the third stage, and then began to decline. After the seventh stage, it tended to be stable. However, within the 10 stage range, the confidence interval for the response strength of voluntary blood donation collection volume always included 0, indicating that the response of blood collection volume to the plasmapheresis station setting in the region was not statistically significant. The results of variance decomposition showed that the contribution of collection volume of voluntary blood donation to their own impact reached 94.3%. In terms of the contribution of plasmapheresis station factors, the number of plasma donors has a relatively greater impact on the volume of voluntary blood donation collected(2.2%). Covariance analysis showed that after removing the initial confounding factors, whether to establish a plasmapheresis station had no significant impact on blood donation volume in the two groups of regions (P>0.05). 【Conclusion】 The establishment of a new plasmapheresis station will have a certain impact on blood collection volume of blood stations in the region in a short term, but in the long term, it may not directly affect the voluntary blood donation collection in the region.

Demographic difference and influencing factors of motivations between whole blood and plasmapheresis donors: a comparative study / 中国输血杂志

【Objective】 To explore the difference of demographics and influencing factors of motivations between whole blood donors and plasmapheresis donors, so as to provide scientific reference for effective recruitment strategy. 【Methods】 A total of 200 whole blood donors from Guangyuan Blood Center and 200 plasmapheresis donors from Jiange Plasmapheresis Station were selected in August 2021 for on-site questionnaire survey using the method of cross-sectional survey. Statistical analysis was performed by chi-square test, univariate and multivariate logistic regression. 【Results】 There were significant differences in gender, age, occupation, education level and annual family income between whole blood donors and plasmapheresis donors (P<0.05). Males accounted for a large proportion of whole blood donors(124/196, 63.3%), whereas females accounted for a large proportion of plasmapheresis donors(117/198, 59.1%). There was little difference in the number of whole blood donors in different age groups, while the age of plasmapheresis donors was concentrated in 40~59 years old (167/198, 84.3%). In terms of occupation, civil servants (including public institutions) accounted the highest proportion in whole blood donors (41/196, 20.9%), and farmers accounted the highest proportion (152/198, 76.8%) in plasmapheresis donors. The number of whole blood donors increased with the education level, and donors with college/university and above degree accounted the largest proportion (80/196, 40.8%). Plasmapheresis donors with junior middle school education and college/university and above accounted the largest and smallest proportion (49.5% vs 4.5%). The annual family income of whole blood donors ranged from 30 000 to 80 000 yuan accounted the largest proportion (109/196, 55.6%), and the annual family income of plasmapheresis donors less than 30 000 yuan accounted the largest proportion (132/198, 66.7%). 【Conclusion】 There were significant statistical differences in gender, age, education level, occupation and annual family income between whole blood and plasmapheresis donors. Therefore, targeted recruitment strategies should be formulated.

Applications of dual plasma molecular adsorption plus plasmapheresis for liver failure during perioperative period of liver transplantation in children: a report of 3 cases / 中华器官移植杂志

Liver failure(LF) is a rapidly progressing critical illness with a high mortality rate in clinical practices.Artificial liver therapy has been a major cure for LF.However, for LF infants and toddlers, therapeutic options for artificial liver have remained limited due to a great lack of weight-matched blood purification supplies.In recent years, our center has applied double plasma molecular adsorption plus plasmapheresis for managing LF children during perioperative period of liver transplantation.Treatment is smooth with an excellent efficacy of removing toxins.Here our institutional experiences were summarzied.

Leptospirosis during the COVID-19 pandemic: a case report

ABSTRACT Since SARS-CoV-2 disease (COVID-19) has been labeled as a pandemic, it took the spotlight in the differential diagnosis for patients presenting with acute respiratory and systemic symptoms. Leptospirosis is one of the most common zoonoses in the world, yet it is mainly a disease of differential diagnosis for places that do not have it as an endemic. Due to the high burden of COVID-19 on the healthcare field, patients suffering from other infections may have been inadvertently neglected. COVID-19 infection can mimic other infectious diseases and can confuse physicians in their search for a confirmatory diagnosis. Nonetheless, it is very crucial to broaden the differential diagnosis and keep diseases like leptospirosis within the differential diagnosis despite its rarity, especially in patients presenting with unexplained systemic infectious symptoms. This is a unique case of a patient who presented with dyspnea, jaundice and change in urine color who was suspected to be COVID-19 positive. After a detailed investigation, the patient was diagnosed with leptospirosis instead of COVID-19 and was treated with plasmapheresis and antibiotics accordingly.

Uso de plasmaféresis en el manejo de colestasis intrahepática grave asociada a enfermedad de Graves: a propósito de un caso / Use of plasmapheresis in the treatment of severe intrahepatic cholestasis associated with Graves' disease: a case report

La tirotoxicosis es la manifestación clínica de una liberación excesiva de hormonas tiroideas, asociada o no a una función glandular autónoma; en este primer escenario, se denomina específicamente hipertiroidismo. Las principales etiologías son la enfermedad de Graves (EG), el adenoma tóxico, el bocio multinodular tóxico y el grupo de tiroiditis, predominando sus formas aguda y subaguda. La EG es la forma más común de hipertiroidismo, representando entre el 60 % y el 80 % de los casos, con una mayor incidencia en personas entre 40 y 60 años. Se ha descrito un compromiso hepático entre 45 % y el 90 % de pacientes con hipertiroidismo. Presentamos el caso de un hombre de 47 años con tirotoxicosis secundaria a enfermedad de Graves con compromiso bioquímico hepático manifestado como colestasis intrahepática refractaria al tratamiento médico en el corto plazo, tratado exitosamente con plasmaféresis como terapia puente a tiroidectomía total, proporcionando un análisis de la respuesta a la terapia a través de un cambio en los niveles de tiroxina libre (T4) y bilirrubina total a lo largo de su evolución.

Thyrotoxicosis is the clinical manifestation of excessive thyroid hormone release, whether or not asso-ciated with autonomous glandular function; in this first scenario, it is specifically termed hyperthyroi-dism. The main etiologies are Graves' disease (GD), toxic adenoma, toxic multinodular goiter ant the group of thyroiditis, predominantly acute and subacute forms. GD is the most common form of hyperthyroidism, accounting for 60% to 80% of cases, with a higher incidence among people aged 40 to 60 years. Liver involvement has been reported in 45% to 90% of patients with hyperthyroi-dism. We present the case of a 47-year-old man with thyrotoxicosis secondary to Graves' disease with hepatic biochemical involvement manifested as intrahepatic cholestasis refractory to medical management in the short term, successfully treated with plasmapheresis as bridge therapy to total thyroidectomy, providing an analysis of the response to therapy through a change in free thyroxine (T4) and total bilirubin levels throughout his evolutio

Immunoadsorption therapy for a meningococcemia patient with myocarditis, adrenal hemorrhage, and purpura fulminans: a case report

Abstract Neisseria meningitidis, also known as meningococcus, is a relatively uncommon cause of invasive infection, but when it occurs, it is frequently severe and potentially life-threatening. A ten-year-old female patient developed a purpuric rash with fever. Upon arrival to the pediatric intensive care department, she was unconscious and in a poor general condition. We combined treatment with antibiotics, volume resuscitation, hydrocortisone, and CytoSorb® therapy resulted in a stabilization of hemodynamics, as well as control of hyperinflammation. We observed a significant decrease in vasopressor dosage in this patient.

Liver transplantation for fulminant hepatic failure in yellow phosphorus poisoning

Yellow phosphorus (YP) containing rodenticides is a readily available poison that may be accidentally or deliberately ingested, leading to symptoms ranging from simple gastrointestinal symptoms to fulminant hepatic failure, depending on the amount ingested. As there is no specific antidote, the treatment requires early gastric lavage and institution of supportive measures such as acetyl cysteine infusion and Vitamin K. Progression to fulminant hepatic failure is characterized by rapid deterioration of liver function tests, worsening coagulopathy, and sensorium. The only definitive treatment at this stage is a liver transplant and therapeutic plasma exchange (TPE) can serve as a bridge therapy until a compatible liver donor is found. We present a case of YP-containing rodenticide poisoning, in which the patient progressed to fulminant hepatic failure despite aggressive supportive therapy and was successfully managed with TPE until liver transplantation.

Evaluación del perfil férrico en donantes regulares de plasma / Evaluation of the iron profile in regular plasma donors

RESUMEN Fundamento un aspecto poco relacionado de la plasmaféresis productiva, es el efecto que puede causar sobre el hierro corporal en donantes regulares de plasma. Objetivo caracterizar el comportamiento del perfil férrico en donantes regulares de plasmaféresis. Métodos estudio descriptivo transversal, realizado con 115 donantes de plasma, registrados en el Banco Provincial de Sangre de Cienfuegos. En un periodo de dos años, se estudiaron las variables: sexo, edad, tiempo en el programa, intensidad de donaciones, sideremia, transferrina, capacidad e índice de saturación, mediciones básicas del hemograma y parámetros eritrocitarios. La información se extrajo de las historias clínicas y los informes de laboratorio. Resultados las mediciones del mineral prevalecieron dentro del rango normal. El 27,0 % de los donantes mostraron ferropenia, más frecuente entre las mujeres, los mayores de edad, aquellos que llevaban mayor tiempo en el programa y habían donado mayor número de veces. Más de la mitad de los individuos presentaron capacidad e índice de saturación patológicos, sugerente de hematopoyesis ferropénica. Los parámetros eritrocitarios fueron más sensibles al relacionar ferropenia latente, con predominio de mediciones patológicas de volumen corpuscular medio, hemoglobina corpuscular media e índice de distribución eritrocitario. Conclusión la deficiencia de hierro subclínica resultó más frecuente de lo esperado entre los donantes de plasmaféresis incluidos en el estudio.

ABSTRACT Background a little related aspect of productive plasmapheresis is the effect it can have on body iron in regular plasma donors. Objective to characterize the behavior of the iron profile in regular plasmapheresis donors. Methods cross-sectional descriptive study, carried out with 115 plasma donors, registered in the Provincial Blood Bank of Cienfuegos. In a period of two years, the studied variables were: sex, age, time in the program, intensity of donations, serum iron, transferrin, capacity and saturation index, basic measurements of the blood count and erythrocyte parameters. Information was extracted from medical records and laboratory reports. Results the mineral measurements prevailed within the normal range. 27.0% of the donors showed iron deficiency, more frequent among women, the elderly, those who had been in the program for a longer time and had donated more times. More than half of the individuals presented pathological capacity and saturation index, suggestive of iron deficiency hematopoiesis. The erythrocyte parameters were more sensitive when relating latent iron deficiency, with a predominance of pathological measurements of mean corpuscular volume, mean corpuscular hemoglobin and erythrocyte distribution index. Conclusion subclinical iron deficiency was more frequent than expected among the plasmapheresis donors included in the study.

COVID-19, glomerulonefritis ANCA y anti-membrana basal glomerular. Caso clínico / Association of COVID-19 and glomerulonephritis with ANCA and anti-glomerular basement membrane antibodies. Report of one case

Renal involvement in COVID-19 infection is varied and worsens its outcome and prognosis. However, the association of COVID-19 infection with glomerulonephritis is exceptional. We report a 46-year-old woman with COVID-19 who had an acute kidney injury and ANCA associated glomerulonephritis two weeks after the onset of the disease. The kidney biopsy showed a crescentic glomerulo-nephritis and the presence of anti-glomerular basement membrane antibodies (GBM-Abs). She was treated with steroids and oral cyclophosphamide with good response without requiring plasmapheresis. Plasma anti GBM-Abs were negative. This case suggests that the presence of anti-GBM-Abs in the kidney, was temporally related to COVID-19 pulmonary damage. The absence of plasma antibodies is probably due to transient production and glomerular adsorption, but with unknown pathogenic role.

Utilidad de la plasmaféresis terapéutica en pacientes críticos con disfunción orgánica / Usefulness of therapeutic plasmapheresis in critical patients with organ dysfunction

Introducción: La aféresis terapéutica es el procedimiento que separa y remueve el plasma de la sangre total, con el objetivo de eliminar componentes considerados responsables patógenos de una enfermedad o de sus manifestaciones clínicas Objetivos: Analizar los aspectos generales de la aplicación de la técnica de plasmaféresis como alternativa de tratamiento en pacientes críticos con disfunción orgánica. Métodos: Se realizó una investigación bibliográfica-documental acerca del tema. Se consultaron fundamentalmente las bases de datos de SciELO y Pubmed de los últimos diez años. Análisis y síntesis de la información: Se describen los aspectos de la plasmaféresis, desde sus criterios de indicación; así como la aplicación del procedimiento en los pacientes con disfunción orgánica y sus resultados en la evolución del paciente. Conclusiones: Con la utilización de la plasmaféresis se encontró mejoría de los parámetros clínicos y de laboratorio en la mayoría de los pacientes en disfunción orgánica al egreso de la unidad de cuidados intensivos(AU)

Introduction: Therapeutic apheresis is the procedure that separates and removes plasma from whole blood, thus eliminating components considered pathogenic of a disease or its clinical manifestations. Objectives: To analyze the general aspects of de application of the plasmapheresis technique as an alternative treatment in oncohematological patients wish organic dysfunction. Methods: A bibliographic- documentary investigation was carried out on de subject The Scielo and Pubmed data bases were consulted. Analysis and synthesis of information: The technical aspects of plasmapheresis are described, based on its indication criteria, as well as the application of de technique in patients with organic dysfunction and its results in the evolution of the patient. Conclusions: With the use of the plasmapheresis technique improvement in clinical and laboratory parameters was found in the majority of organ dysfunction patients upon discharge from the intensive care unit(AU)

Research progress of iron deficiency in apheresis donors / 中国输血杂志

【Objective】 The loss of iron stores is well documented in whole blood donors, and a large number of studies have confirmed that blood donors are at risk of iron deficiency. With the development of apheresis donation, more and more attention has been paid to the health of apheresis donors. However, little is known about the iron status of apheresis donors. In recent 10 years, iron status of apheresis donors has been studied at home and abroad, and iron deficiency was found common among them. There is no systematic study concerning apheresis donors iron deficiency at present. This article summarizes the literature, concerning the principles and preventive measures about iron deficiency in apheresis donors, and aims at improving the recruitment strategy and providing high-quality service for donors.

Effect of artificial liver with double plasma molecular absorb system model on patients' platelets and corresponding treatment strategy / 北京大学学报(医学版)

OBJECTIVE@#To compare the effects of artificial liver treatment with double plasma molecular adsorption system(DPMAS) mode and traditional plasma exchange (PE) mode on platelets in patients, and to evaluate the clinical efficacy of recombinent human thrombopoietin (rhTPO) in the treatment of thrombocytopenia.@*METHODS@#A total of fifteen patients undergoing artificial liver with DPMAS model admitted to the Fifth Affiliated Hospital of Guangzhou Medical University from January 2018 to November 2020 were selected and included in the DPMAS group, and another 15 patients receiving PE were selected and included in the PE group. The improvement of clinical symptoms, such as fatigue, jaundice, oliguria, edema, etc. before and after artificial liver treatment was compared between the two groups, and the trend of blood routine (especially platelet), coagulation function and other indexes before and after treatment were compared between the two groups. The use of rhTPO and the number of platelets were recorded during treatment.@*RESULTS@#The improvement rate of clinical symptoms in DPMAS group was 86.67%, which was higher than that in PE group, but the difference was not statistically significant (P>0.05). There was no statistical significance in the outcome of the two groups within 90 days (P>0.05). There was no significant difference in white blood cell (WBC) and hemoglobin (HB) between the two groups after treatment (P>0.05). However, the level of platelet(PLT) in DPMAS group was significantly lower than that before treatment (P < 0.05), and was significantly lower than that in PE group (P < 0.05). After treatment, the international normalized ratio (INR) level in PE group was significantly improved (P < 0.05), but there was no significant difference in the INR level in DPMAS group (P>0.05). The patients in the DPMAS group received an average of (8.2±3.1) doses of rhTPO and (1.5±0.3) IU of platelet transfusions during hospitalization. In DMPAS group, platelets increased significantly after infusion of terbium.@*CONCLUSION@#Compared with PE mode, the artificial liver with DPMAS mode can reduce platelet levels in patients, but the application of rhTPO can stimulate platelet regeneration and increase platelet levels in the patients, thereby reducing the risk of bleeding due to platelet hypoplasia.