Infusão de concentrado de hemácias por cateter central de inserção periférica com válvula proximal: influência sobre os marcadores de hemólise
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Data
2016
Tipo
Dissertação de mestrado
Título da Revista
ISSN da Revista
Título de Volume
Resumo
Introdução: A terapia transfusional pode ser implementada por meio de diversos
cateteres, dentre eles o cateter central de inserção periférica (CCIP). Entretanto,
evidencia-se carência de estudos que indiquem sua influência sobre alterações nos
marcadores de hemólise. Objetivos: Verificar a ocorrência de alterações nos
marcadores de hemólise de concentrados de hemácias após infusão por CCIP com
válvula proximal, segundo calibre e velocidade de infusão, e descrever a altura do
sistema, a pressão e a velocidade de infusão segundo os diferentes calibres de
cateter. Material e Método: estudo experimental realizado em laboratório sob
condições controladas de temperatura e umidade. A amostra foi composta por 12
CCIP com válvula proximal de 3Fr e 4Fr, nos quais foram infundidos concentrados
de hemácias, pelo método gravitacional, e coletadas alíquotas de sangue da bolsa,
após a infusão em fluxo livre e em velocidade controlada. As variáveis de desfecho
foram porcentagem do hematócrito, hemoglobina total, hemoglobina livre, grau de
hemólise, potássio e desidrogenase lática. As variáveis categóricas foram descritas
em valor absoluto e frequência relativa enquanto as variáveis contínuas como média,
desvio-padrão, mediana, valores mínimo e máximo. Foram utilizados os testes
ANOVA, Bonferroni, Mann-Whitney e correlação de Spearman, com nível de
significância p<0,05. Resultados: após as infusões nos CCIP de calibre 3 Fr
evidenciou-se aumento do grau de hemólise (p=0,003) e da hemoglobina livre
(p=0,014), e redução da hemoglobina total (p=0,002), com influência significante das
velocidades mínima e máxima sobre grau de hemólise, hemoglobina total na
velocidade mínima e hemoglobina livre na velocidade máxima. Quanto à altura do
sistema de infusão, pressão e velocidade de infusão, segundo o calibre do CCIP,
identificou-se que apenas a velocidade diferiu significativamente entre os dois
calibres após infusão em fluxo livre. Conclusões: o menor calibre do cateter e a
velocidade de infusão influenciaram variações de alguns marcadores de hemólise, e
apenas a velocidade diferiu entre os diferentes calibres de cateter. As alterações
evidenciadas nos marcadores de hemólise não contraindicariam a infusão de
concentrados de hemácias por CCIP com válvula proximal de calibres 3 e 4 Fr, e em
diferentes velocidades de infusão
Introduction: transfusion therapy can be implemented through various catheters, including the peripherally inserted central catheter (PICC). However, there is a lack of evidence that indicate its influence on changes in hemolysis markers. Objectives: verify the occurrence of changes in hemolysis markers of red blood cells after infusion by PICC with proximal valve, according to caliber and infusion rate, and describe the system height, pressure and infusion rate according to the different catheter calibers. Methods: experimental study accomplished in a laboratory with controlled temperature and humidity conditions. The sample consisted of 12 PICC with proximal valve of 3French (Fr) and 4Fr, in which were infused packed red blood cell, by gravitational method. Aliquots of blood were collected after free flow and controlled rate. The outcome variables were percentage of hematocrit, total hemoglobin, free hemoglobin, degree of hemolysis, potassium and lactate dehydrogenase. Categorical variables were described in absolute and relative frequency while continuous variables as mean, standard deviation, median, minimum and maximum values. ANOVA, Bonferroni, Mann-Whitney and Spearman correlation tests were used, with significance level of p <0.05. Results: The analysis of the infusions in 3 Fr PICC showed an influence in the increase of degree of hemolysis (p=0.003) and free hemoglobin (p=0.014), and decrease of total hemoglobin (p=0.002), with significant influence of the minimum and maximum rates on degree of hemolysis, total hemoglobin at minimum rate and free hemoglobin at maximum rate. As the infusion system height, pressure and infusion rate, according to the PICC caliber, it was found that only the infusion rate differ significantly between the two gauges after the infusion in free flowing. Conclusion: the smallest diameter of the catheter and the infusion rate influenced variations in some markers of hemolysis, and only the rate differ between catheters. The changes evidenced in hemolysis markers do not contraindicate infusion of packed red blood cells by PICC with proximal valve 3 Fr and 4 Fr, and at different infusion rates
Introduction: transfusion therapy can be implemented through various catheters, including the peripherally inserted central catheter (PICC). However, there is a lack of evidence that indicate its influence on changes in hemolysis markers. Objectives: verify the occurrence of changes in hemolysis markers of red blood cells after infusion by PICC with proximal valve, according to caliber and infusion rate, and describe the system height, pressure and infusion rate according to the different catheter calibers. Methods: experimental study accomplished in a laboratory with controlled temperature and humidity conditions. The sample consisted of 12 PICC with proximal valve of 3French (Fr) and 4Fr, in which were infused packed red blood cell, by gravitational method. Aliquots of blood were collected after free flow and controlled rate. The outcome variables were percentage of hematocrit, total hemoglobin, free hemoglobin, degree of hemolysis, potassium and lactate dehydrogenase. Categorical variables were described in absolute and relative frequency while continuous variables as mean, standard deviation, median, minimum and maximum values. ANOVA, Bonferroni, Mann-Whitney and Spearman correlation tests were used, with significance level of p <0.05. Results: The analysis of the infusions in 3 Fr PICC showed an influence in the increase of degree of hemolysis (p=0.003) and free hemoglobin (p=0.014), and decrease of total hemoglobin (p=0.002), with significant influence of the minimum and maximum rates on degree of hemolysis, total hemoglobin at minimum rate and free hemoglobin at maximum rate. As the infusion system height, pressure and infusion rate, according to the PICC caliber, it was found that only the infusion rate differ significantly between the two gauges after the infusion in free flowing. Conclusion: the smallest diameter of the catheter and the infusion rate influenced variations in some markers of hemolysis, and only the rate differ between catheters. The changes evidenced in hemolysis markers do not contraindicate infusion of packed red blood cells by PICC with proximal valve 3 Fr and 4 Fr, and at different infusion rates
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Citação
JACINTO, Amanda Karina de Lima. Infusão de concentrado de hemácias por cateter central de inserção periférica com válvula proximal: influência sobre os marcadores de hemólise. 2016. 92 f. Dissertação (Mestrado) - Escola Paulista de Enfermagem, Universidade Federal de São Paulo. São Paulo, 2016.