Utilization of Universal Group O Blood By Non Group O Recipients
Notice bibliographique
Résumé
Abstract INTRODUCTION: Individuals with group O blood are designated ‘universal donors’ as their red cells can be transfused to all individuals. 15% of donors are Rh negative; their red cells are particularly valuable as they are the only blood compatible with O Rh negative recipients. Canada has experienced group O blood shortages in the past, which have been aggravated by group O red cells being given to non-O recipients. We performed a study to determine the utilization patterns of group O red cells (both Rh positive and Rh negative) by non-O recipients in a large Canadian city. METHODS: Blood utilization data from all group O Rh positive and Rh negative red cells transfused at three academic hospitals between April 2002 and March 2013 were used for this study. Autologous and directed donor red cells were not included. Information was collected for all patients receiving group O blood including: age; inpatient or outpatient setting; ABO and Rh type; number of transfusions received; presence of red cell alloantibodies; most responsible diagnosis (MRD); and indications for transfusion. Descriptive statistics were performed using SAS 9.2. RESULTS: During the study period, 289,392 units of red cells were transfused, of which 139,320 were group O units. A minority of O red cells (8.7%) were transfused to non-O (A,B or AB) recipients. Of the 106,827 transfused O Rh positive red cells, 4.3% (4,594) were given to non-O individuals. Of the 32,493 transfused O Rh negative red cells, 23.2% (7,544) were given to non-O recipients. When O Rh negative red cells were considered, 32.8% (10,670) were given to Rh positive recipients. For outpatient O red cell transfusions (31,730 units), 19.6% of O Rh negative units and 5.9% of O Rh positive units were transfused to non-O recipients. For inpatient O red cell transfusions (107,590 units), 24.2% of O Rh negative units and 3.8% of O Rh positive units were transfused to non-O recipients. The most common MRD for non-O patients receiving O blood were circulatory disease, cancer, and trauma. The most common indications for transfusion of O negative blood to non-O recipients were: presence of an alloantibody requiring phenotype specific blood (26.0%); trauma requiring uncrossmatched blood (8.5%); outdating unit (12.5%); recipient was in neonatal ICU (11.5 %); and recipient was a transplant patient (6.4%). In 39.5% of cases, there was no clear indication for transfusion of O negative blood to a non-O recipient. CONCLUSIONS: Most O Rh positive blood is given to O Rh positive recipients. However, O Rh negative blood is frequently given to non-O recipients; this can contribute to shortages. A number of factors leading to transfusion of non-group identical blood - presence of an alloantibody, the need for massive/urgent transfusion (e.g., trauma), and outdating units - could be better managed by Transfusion Medicine Services to preserve the scarce resource of 'universal donor' blood. Disclosures No relevant conflicts of interest to declare.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».