Evaluación de la eficacia en la colecta de plaquetas por un separador celular / Evaluation of the efficacy in the collection of platelets by a cell separator / Avaliação da eficiência da coleta de plaquetas por um separador de células separador de células

La aféresis es el procedimiento más utilizado para la obtención de concentrados plaquetarios de alto rendimiento, calidad y para mejorar las terapias transfusionales en pacientes trombocitopénicos, oncohematológicos,cirugias e incluso, en pacientes con factores clínicos adversos a la refractariedad. Objetivo. Determinar la eficacia de un separador celular en la colecta de plaquetas en un Instituto Nacional de Salud de Lima. Material y métodos. Estudio descriptivo; la muestra fue de 80 concentrados plaquetarios, obtenidos por plaquetoaferesis y utilizando el equipo de separador celular americano. La colecta de plaquetas se realizó en un servicio de Hemoterapia y Banco de Sangre de una institución de salud de Lima, durante los meses de febrero a julio de 2018. La eficacia se realizó evaluando el rendimiento, la eficiencia y el cumplimiento de estándares de calidad aprobados. Uno de los parámetros utilizados fue el recuento de plaquetas y leucocitos residuales, procesados en el analizador hematológico. Resultados. Las evaluaciones fueron: concentración promedio de plaquetas por concentrado plaquetario (rendimiento)= 3,4 x 1011 plaquetas /ml, recuento de leucocitos residuales = 0,07 x 10 6 leucocitos/ml, volumen promedio de sangre procesado = 2480 ml, volumen final promedio = 217,5 ml, eficiencia en la colecta = 56,9 a 63,9 %, el tiempo medio por procedimiento de colecta = 72 minutos. Conclusiones. Los concentrados plaquetarios obtenidos con el procedimiento de plaquetoaferesis cumplen con los estándares de calidad nacional e internacionales, por lo que, se concluye que este procedimiento es eficaz en la colecta de productos de alta calidad que logran la eficacia en la transfusión.

Apheresis is the most widely used procedure to obtain high yield and quality platelet concentrates and to improve transfusion therapies in thrombocytopenic patients, oncohematological patients, surgical patients and even patients with adverse clinical factors to refractoriness. Objective. To determine the efficacy of a cell separator in the collection of platelets in a National Health Institute in Lima. Material and methods. Descriptive study; the sample consisted of 80 platelet concentrates, obtained by plateletpheresis and using American cell separator equipment. The platelet collection was performed in a Hemotherapy and Blood Bank service of a health institution in Lima, during the months of February to July 2018. Effectiveness was performed by evaluating performance, efficiency and compliance with approved quality standards. One of the parameters used was the residual platelet and leukocyte count, processed in the hematological analyzer. Results. The evaluations were: average platelet concentration per platelet concentrate (yield)= 3.4 x 1011 platelets/ml, residual leukocyte count = 0.07 x 10 6 leukocytes/ml, average volume of blood processed = 2480 ml, average final volume = 217.5 ml, collection efficiency = 56.9 to 63.9 %, average time per collection procedure = 72 minutes. Conclusions. The platelet concentrates obtained with the plateletpheresis procedure comply with national and international quality standards, therefore, it is concluded that this procedure is effective in the collection of high quality products that achieve transfusion efficiency.

A aférese é o procedimento mais utilizado para obter concentrados plaquetários de alto rendimento e alta qualidade e para melhorar as terapias transfusionais em pacientes trombocitopênicos, oncohematológicos, cirúrgicos e até mesmo pacientes com fatores clínicos adversos à refratariedade. Objetivo. Para determinar a eficácia de um separador de células na coleta de plaquetas em um Instituto Nacional de Saúde em Lima. Material e métodos. Estudo descritivo; a amostra consistiu de 80 concentrados de plaquetas, obtidos por plaquetaferese e utilizando equipamento separador de células americano. A coleta de plaquetas foi realizada em um serviço de Hemoterapia e Banco de Sangue de uma instituição de saúde em Lima, durante os meses de fevereiro a julho de 2018. A eficácia foi avaliada através da avaliação do desempenho, eficiência e conformidade com os padrões de qualidade aprovados. Um dos parâmetros utilizados foi a contagem residual de plaquetas e leucócitos, processada no analisador hematológico. Resultados. As avaliações foram: concentração média de plaquetas por concentrado de plaquetas (rendimento) = 3,4 x 1011 plaquetas/ml, contagem de leucócitos residuais = 0,07 x 10 6 leucócitos/ml, volume médio de sangue processado = 2480 ml, volume final médio = 217,5 ml, eficiência da coleta = 56,9 a 63,9%, tempo médio por procedimento de coleta = 72 minutos. Conclusões. Os concentrados de plaquetas obtidos com o procedimento de plaquetférese atendem aos padrões de qualidade nacionais e internacionais, portanto, conclui-se que este procedimento é eficaz na coleta de produtos de alta qualidade que alcançam eficiência transfusional.

Some Haematological Parameters among Urinary Schistosomiasis-Malaria Coinfected Children in Suburb of Malentouen Health District, West Region Cameroon

Background:Schistosomiasisand Malaria are among the most prevalent afflictions of humans who live in areas of poverty in the developing world. The present study was aimed at determining the socio demographic characteristics and prevalence of schistosomiasis and malaria in childrenliving in Suburb of Malentouen Health District and analyzing the effect of co-infection on haemoglobin level, mean corpuscular volume and platelet count. Methods:Questionnaires were distributed to parents or guardians of children attending public primaryschool in the area. A total of 429 pupils aged 6-15 years old were screened for urinary schistosomiasis and 228 out of the 429 were tested for. Prevalences of thetwo parasites were calculated; Haemoglobin level, Mean Corpuscular Volume and platelets count of the 228 participants were recorded.Results:The prevalence of malaria was 26.75%, where as that of schistosomiasis was 43.82%. 31(13.60%) of the participants were co-infected with the two parasites. Mean haemoglobin level obtained was 11.01± 1.19 G/dL, that of MCV was 84.50±5.31/fl and the mean platelet count was 255.13±96.99/μl. In malaria single infected and co-infected participants, low haemoglobin level (2= 50.315, p = .000), low MCV (2= 27.448, p = .000) and low platelets count (2= 37.253, p = .000)were observed with significant variations.Conclusions:The three haematological parameters analysed in this study (Hb, MCV, Platelets count), showed low level or amount in malaria and malaria-schistosomiasis infected participants. Moreover, thrombocytopenia in children in this endemic area may be useful as supportive diagnostic criteria for malaria in case with low level of parasite number

Study the association between platelets count and grades of oesophageal varies in patients of cirrhosis of liver with portal hypertension

Background: cirrhosis of liver is a diffuse process of fibrosis that converts the liver architecture into structurally abnormal nodules Portal hypertension leads to dilatation of portal vein, splenomegaly, and formation of portal systemic collaterals at different sites. Screening endoscopy is recommended for early detection of esophageal varices (EVs) in cirrhotic patients with portal hypertension. However, this approach is limited by its invasiveness and cost. The aim of the study was to determine if platelet count can predict the presence of EVs, especially large (grade III, IV) EVs in need of prophylactic therapy.Methods: Statistically 100 patients previously or newly diagnosed with cirrhosis of liver with portal hypertension without history of hepatic encephalopathy, variceal bleeding, EVL, use of beta blockers, were selected for the study. Ultrasonography was performed in all cases to note the spleen size. Routine blood testing including platelet count was done and UGI-Endoscopy was done to detect presence of varices with grades. Statistical Analysis: Statistical analysis was done using Statistical Package for Social Survey (SPSS) for Windows version 17.0. The data obtained was analysed using mean, SD, Student’s t-test and chi square correlation coefficient, p value <0.05 was considered significant.Results: Among 100 patients studied ,90% patients were found to have esophageal varices. Based on endoscopic grading, incidence of grade 2 and grade 3 esophageal varices predominated, accounting to 48% and 23 % respectively. On correlation of platelet count with grades of esophageal varices it was evident that 44 patients had their platelet count less than 1 lac out of which 24 patients had grade 2 varices followed by 14 patients with grade 3 varices, p value <0.001 and was highly significant.Conclusions: The study depicts that with decrease in platelets count the chances of formation of higher grades of oesophageal varices increases and also a positive association exists.

Neutrophil-to-lymphocyte ratio and platelet count as prognostic factors in ovarian malignancies

Objective: The objectives of the present study were to demonstrate the influence of neutrophils, platelets, and neutrophil–lymphocyte ratio (NLR) in the ovarian cancer prognosis and to compare these parameters with benign ovarian neoplasms. Materials and Methods: Records of patients underwent surgery for ovarian cysts were evaluated. There were 72 malignant neoplasms and 213 benign neoplasms. Age, parity, histologic type, tumor stage, type of surgery performed, chemotherapy, disease-free survival, serum levels of tumor markers, neutrophils, lymphocytes, platelets, and NRL were recorded. The Mann-Whitney, the Chi-square test and multiple linear regression were used. A P-value < 0.05 was established as the significance level. Results: Higher values of platelets, neutrophils, and NLR were found in malignant tumors (P = 0.0132, P = 0.0208, and P < 0.0001, respectively), while lymphocytes values were higher in benign group (P < 0.0001). Preoperative platelet count 300,000/mm3 was related to less aggressive histological types (P = 0.0148). NLR <3 was related to the initial stages (P = 0.0053), and patients with disease-free survival >24 months had most often neutropenia during chemotherapy (P = 0.0482). After multivariate analysis, platelets, NLR, and serum levels of CA15.3 were considered independent variables related to tumor staging (P = 0.028, P = 0.028, and P = 0.035, respectively). Conclusion: NLR and serum levels of platelets may represent potential prognostic factors in ovarian cancer, and they may also serve as therapeutic targets in the future treatment strategies

Detection and clinical significance of C reaction protein in patients with ulcerative colitis / 中国基层医药

Objective To study the detection and clinical significance of C reaction protein(CRP)in patients with ulcerative colitis(UC).Methods The levels of peripheral blood CRP and blood platelets count(BPC)in patients with UC(n=57) and normal controls group(n=30)were detected and the effects on disease severity were analyzed subsequently.Results The levels of peripheral blood CRP and BPC in active phase group were significantly higher than those in catabasis group(P＜0.05),they were no significant difference between catabasis group and norreal controls group(P＞0.05);the leveh of peripheral blood CRP and BPC in severe stage were significantly higher than those in medium stage(P＜0.05),in medium stage,severe stage they were significantly higher than those in mild stage(P＜0.05,P＜0.01).Conclusion The level of peripheral blood CRP and BPC had important value to judge active phase and severity of UC.