Transfusiones de glóbulos rojos en recién nacidos de muy bajo peso de nacimiento / Red blood cell transfusions in very low birth weight newborns

Introducción: Se ha reportado que el 80% de los recién nacidos de muy bajo peso de nacimiento (RNMBPN) es receptor de transfusiones de glóbulos rojos desplasmatizados (trGRD) y en el 90 por ciento de ellos, la indicación de transfusión es la reposición de sangre extraída. La acción en salud que mayor impacto ha tenido sobre el descenso del número de transfusiones, es la existencia de guías para la práctica transfusional. El objetivo de este trabajo es describir las características de los RNMBPN receptores de trGRD. Pacientes y Método: Estudio transversal descriptivo, que incluyó las fichas clínicas de todos los RNMBPN, mayores de 72 h de vida, egresados de Neonatología, Hospital Base Valdivia, entre el año 2005 y 2006. Se evaluaron el peso de nacimiento, edad gestacional, surfactante pulmonar, membrana hialina, ventilación mecánica, displasia broncopulmonar, sepsis y transfusiones de GRD. Se utilizó la Guía para la Práctica Transfusional de GRD en neonatos del Centro Base. Resultados: Fueron evaluados 93 neonatos, siendo transfundidos 62 de 93 neonatos (66,7 por ciento recibiendo 2,1 +/- 0,9 trGRD, la exposición a donantes diferentes fue de 2,1 +/- 0,9. Los RNMBPN susceptible de ser receptor de trGRD fueron de edad gestacional < 30 sem, peso inferior a 1.250 g, con falla respiratoria, ventilación mecánica y sepsis. Conclusión: Los porcentajes observados de RNMBPN transfundidos, la media de trGRD y de exposición a diferentes donantes, podrían ser atribuidos a la existencia de guías para la práctica transfusional neonatal y a un equipo de neonatólogos altamente sensibilizado.

Introduction: It has been reported that 80 percent of very low birth weight infants (VLBWI) are receiving packed red blood cell transfusions (PRBCtr), and in 90 percent of cases, the indication is the replacement of the blood collected. The existence of guidelines for transfusion practices has had a great impact on the decline in the number of transfusions. The aim of this paper is to describe the characteristics of VLBW infants who are packed red blood cell transfusion receptors. Patients and Methods: This is a descriptive cross-sectional study, which included the medical records of all VLBW newborns older than 72 hours, released from the Neonatology department of the Hospital Valdivia Base, between 2005 and 2006. Birth weight, gestational age, pulmonary surfactant, hyaline membrane, mechanical ventilation, bronchopulmonary dysplasia, sepsis and packed red blood cell transfusions were evaluated. Guidelines for packed red cell transfusions were used at the Hospital. Results: 93 newborns were evaluated and 62 of them were transfused (66.7 percent); they received 2.1 +/- 0.9 PRBC transfusion and the exposure to different donors was 2.1 +/- 0.9. The VLBW infants susceptible to be PRBCtr receptor were those younger than 30 weeks' gestational age, weighing less than 1,250 g and with respiratory failure, mechanical ventilation and sepsis. Conclusion: The observed percentages of transfused infants with very low birth weight, median PRBCtr and exposure to different donors can be attributed to the existence of guidelines for neonatal transfusion practices and a team of highly experienced neonatologists.

[Red blood cell transfusions in very low birth weight newborns]. / Transfusiones de glóbulos rojos en recién nacidos de muy bajo peso de nacimiento.

INTRODUCTION: It has been reported that 80% of very low birth weight infants (VLBWI) are receiving packed red blood cell transfusions (PRBCtr), and in 90% of cases, the indication is the replacement of the blood collected. The existence of guidelines for transfusion practices has had a great impact on the decline in the number of transfusions. The aim of this paper is to describe the characteristics of VLBW infants who are packed red blood cell transfusion receptors. PATIENTS AND METHODS: This is a descriptive cross-sectional study, which included the medical records of all VLBW newborns older than 72 hours, released from the Neonatology department of the Hospital Valdivia Base, between 2005 and 2006. Birth weight, gestational age, pulmonary surfactant, hyaline membrane, mechanical ventilation, bronchopulmonary dysplasia, sepsis and packed red blood cell transfusions were evaluated. Guidelines for packed red cell transfusions were used at the Hospital. RESULTS: 93 newborns were evaluated and 62 of them were transfused (66.7%); they received 2.1 ± 0.9 PRBC transfusion and the exposure to different donors was 2.1 ± 0.9. The VLBW infants susceptible to be PRBCtr receptor were those younger than 30 weeks' gestational age, weighing less than 1,250 g and with respiratory failure, mechanical ventilation and sepsis. CONCLUSION: The observed percentages of transfused infants with very low birth weight, median PRBCtr and exposure to different donors can be attributed to the existence of guidelines for neonatal transfusion practices and a team of highly experienced neonatologists.