Anti IH: An antibody worth mention.

Asian J Transfus Sci

Department of Transfusion Medicine, Jubilee Mission Medical College and Research Institute, Thrissur, Kerala, India.

Published: September 2016

A 72-year-old female with co-morbidities posted for surgical correction of fracture neck of femur without any history of transfusions was noted to have a hemoglobin level of 7 g/dl and packed red blood cells transfusion was ordered. Pretransfusion tests demonstrated A1B group with D positive on forward grouping. Reverse grouping showed a varying grade of agglutination with A, B, and O cells. Agglutination being stronger at 4°C. Antibody screening showed pan-agglutination, direct Coomb's test and auto control were negative. The serum reacted with adult O cells (OIadult) but not with adult Bombay cells (Oh Iadult) or O cord (Oicord) cells. A possibility of a compound cold antibody anti IH was made and A1B compatible cells were transfused to the patient. This case report illustrates anti-IH cold agglutinin with broad thermal amplitude. Uniqueness of this case report was O group incompatibility with A1B group, which was detected earlier and a catastrophic transfusion reaction being subverted.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4993087PMC
http://dx.doi.org/10.4103/0973-6247.187941DOI Listing

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