Estudio comparativo de equipos INR capilar "point of care" versus INR venoso, en pacientes en tratamiento con antagonistas de vitamina K / Comparison of point of care capillary international normalized ratio (INR) with INR measured in venous samples

Background: INR is used to monitor the treatment with vitamin K antagonists. A strategy to reduce waiting times for sampling is to measure INR in a capillary sample using a portable point of care (POC) type coagulometer. Aim: To evaluate the correlation of CoaguChek Pro II™, Xprecia™ and microINR™ with venous INR measured at the clinical laboratory and their ease of use. Materials and Methods: Patients provided capillary and venous blood samples for parallel tests comparing Xprecia™ Stride with CoaguChek Pro II™ and with venous INR, microINR™ with CoaguChek Pro IITM and with venous INR. The devices' ease of use was assessed surveying the sampling staff. Results: The three tested devices had good correlation coefficients with venous INR: CoaguChek Pro IITM 0.953 and 0.962; Xprecia™ of 0.912 and microINR™ of 0.932. The correlation coefficient of Xprecia™ with CoaguChek Pro IITM was 0.937 and microINR™ with CoaguChek Pro IITM was 0.976. Conclusions: CoaguChek Pro IITM, Xprecia™ and microINR™ results had a good correlation coefficient with INR measured at the laboratory. Our results indicate that, in the hands of trained users, POC-type coagulometers are reliable and acceptable for routine use in anticoagulant treatment control.

[Comparison of point of care capillary international normalized ratio (INR) with INR measured in venous samples]. / Estudio comparativo de equipos INR capilar "point of care" versus INR venoso, en pacientes en tratamiento con antagonistas de vitamina K.

BACKGROUND: INR is used to monitor the treatment with vitamin K antagonists. A strategy to reduce waiting times for sampling is to measure INR in a capillary sample using a portable point of care (POC) type coagulometer. AIM: To evaluate the correlation of CoaguChek Pro II™, Xprecia™ and microINR™ with venous INR measured at the clinical laboratory and their ease of use. MATERIALS AND METHODS: Patients provided capillary and venous blood samples for parallel tests comparing Xprecia™ Stride with CoaguChek Pro II™ and with venous INR, microINR™ with CoaguChek Pro IITM and with venous INR. The devices' ease of use was assessed surveying the sampling staff. RESULTS: The three tested devices had good correlation coefficients with venous INR: CoaguChek Pro IITM 0.953 and 0.962; Xprecia™ of 0.912 and microINR™ of 0.932. The correlation coefficient of Xprecia™ with CoaguChek Pro IITM was 0.937 and microINR™ with CoaguChek Pro IITM was 0.976. CONCLUSIONS: CoaguChek Pro IITM, Xprecia™ and microINR™ results had a good correlation coefficient with INR measured at the laboratory. Our results indicate that, in the hands of trained users, POC-type coagulometers are reliable and acceptable for routine use in anticoagulant treatment control.

Adherencia a las buenas prácticas de transfusión, observada en el personal de enfermería del Hospital Pediátrico Baca Ortiz / Adherence to good transfusion practices, observed in the nursing staff of the Baca Ortiz Pediatric Hospital

Contexto: el personal de enfermería cumple un rol fundamental en el proceso transfusional; el nivel de conocimientos debe ser periódicamente evaluado a fin de garantizar una buena práctica transfusional. Objetivo: evaluar el nivel de conocimientos que posee el personal de enfermería del Hospital Pediátrico Baca Ortiz (HPBO) previo y posterior a la intervención, frente a los procedimientos para solicitud, administración y monitoreo de los componentes sanguíneos. Sujetos y métodos: estudio no-experimental pre y post-evaluatorio en el personal de enfermería del Hospital Pediátrico Baca Ortiz de la ciudad de Quito. Se diseñó y aplicó una encuesta estructurada a los profesionales de enfermería del Hospital Pediátrico Baca Ortiz a través de la cual se evaluaron aspectos técnicos relativos a la práctica transfusional en lo relativo a solicitud, administración y monitoreo de los componentes sanguíneos. Resultados: la intervención se realizó en 176 profesionales, distribuidos en tres grupos de capacitación; se observó un incremento global del 14,27% en el puntaje post-intervención sobre 20 puntos, con una p<0,002, estadísticamente significativa. La pre-intervención demostró un menor porcentaje de respuestas correctas en lo referente a la toma y envío de muestras (45,2%). Al evaluar el impacto de la intervención se observó que en la etapa relativa a "recepción de hemocomponentes en el servicio hospitalario, verificación, condiciones de envío, validación del paciente y administración de la transfusión" paso del 67,7% al 79,06% de respuestas válidas con una diferencia porcentual de 11,3%. El área hospitalaria que mayor impacto tuvo fue consulta externa, desde un 22,2% de respuestas correctas en la etapa de pre-intervención y la de menor impacto fue el área quirúrgica con 14,15%. Conclusión: la pre-intervención evidenció debilidades y puntos de mejora en los conocimientos del personal de enfermería que fueron fortalecidos significativamente por la intervención realizada. La educación continua reviste utilidad y relevancia para mejorar percepciones y prácticas en medicina transfusional (AU)

Context: nurses play a fundamental role in the transfusion process; The level of knowledge should be periodically evaluated in order to guarantee good transfusion practice. Objective: to evaluate the level of knowledge held by the nursing staff of the Baca Ortiz Pediatric Hospital (HPBO) before and after the intervention, as opposed to the procedures for requesting, administering and monitoring the blood components. Subjects and methods: pre and post-evaluation non-experimental study in the nursing staff of the Baca Ortiz Pediatric Hospital in the city of Quito. A structured survey was designed and applied to the nursing professionals of the Baca Ortiz Pediatric Hospital through which technical aspects related to the transfusion practice regarding the application, administration and monitoring of the blood components were evaluated. Results: the intervention was carried out in 176 professionals, divided into three training groups; an overall increase of 14.27% was observed in the post-intervention score over 20 points, with p <0.002, statistically significant. The pre-intervention showed a lower percentage of correct answers regarding the taking and sending of samples (45.2%). When evaluating the impact of the intervention it was observed that in the stage relative to "reception of blood components in the hospital service, verification, delivery conditions, patient validation and administration of the transfusion" step from 67.7% to 79.06% of valid answers with a percentage difference of 11.3%. The hospital area that had the greatest impact was external consultation, from 22.2% of correct responses in the pre-intervention stage and the one with the least impact was the surgical area with 14.15%. Conclusion: the pre-intervention showed weaknesses and points of improvement in the knowledge of the nursing staff that were significantly strengthened by the intervention performed. Continuing education has utility and relevance to improve perceptions and practices in transfusion medicine. (AU)