ImmunohematologyPub Date : 2021-01-01DOI: 10.21307/immunohematology-2021-030
Geoffrey Daniels
{"title":"Professor David J. Anstee (1946–2021)","authors":"Geoffrey Daniels","doi":"10.21307/immunohematology-2021-030","DOIUrl":"https://doi.org/10.21307/immunohematology-2021-030","url":null,"abstract":"","PeriodicalId":13357,"journal":{"name":"Immunohematology","volume":"37 1","pages":"185 - 186"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46467323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ImmunohematologyPub Date : 2021-01-01DOI: 10.21307/immunohematology-2021-026
M S Bhagavathi, N Das, S Prakash, A Sahu, S Routray, S Mukherjee
{"title":"Blood group discrepancy in A<sub>h</sub> para-Bombay phenotype: a rare blood group variant and its clinical significance.","authors":"M S Bhagavathi, N Das, S Prakash, A Sahu, S Routray, S Mukherjee","doi":"10.21307/immunohematology-2021-026","DOIUrl":"https://doi.org/10.21307/immunohematology-2021-026","url":null,"abstract":"<p><p>Individuals with the rare para-Bombay phenotype have inherited defects in producing H associated with <i>FUT1</i> and/or <i>FUT2</i> genes. We report a case of blood group discrepancy in a para-Bombay patient from a tertiary care hospital of eastern India. A 31-year-old woman with rheumatic heart disease presented with fatigue and breathlessness and was then scheduled for valvuloplasty, for which a blood transfusion request was sent to the blood center. During pre-transfusion testing, red blood cell (RBC) testing showed group O, and serum testing showed strong reactivity with group B RBCs, weak reactivity with group O RBCs, and very weak reactivity with group A RBCs. Saliva inhibition testing and enzyme treatment of RBCs concluded the patient to be of \"A<sub>h</sub> para-Bombay\" phenotype. The patient's Lewis phenotype was Le(a-b+). This patient's serum also had cold-reacting anti-IH along with anti-B. This case report highlights the importance of performing an advanced immunohematologic workup, including adsorption, elution, enzyme treatment, and saliva inhibition testing for identification of weak A or B subgroups as well as the rare para-Bombay blood group, when routine ABO typing, using forward and reverse grouping, is inconclusive. Accurate identification of blood group helps in preventing transfusion-related adverse events and encouraging safe transfusion practice.</p><p><p>Individuals with the rare para-Bombay phenotype have inherited defects in producing H associated with <i>FUT1</i> and/or <i>FUT2</i> genes. We report a case of blood group discrepancy in a para-Bombay patient from a tertiary care hospital of eastern India. A 31-year-old woman with rheumatic heart disease presented with fatigue and breathlessness and was then scheduled for valvuloplasty, for which a blood transfusion request was sent to the blood center. During pre-transfusion testing, red blood cell (RBC) testing showed group O, and serum testing showed strong reactivity with group B RBCs, weak reactivity with group O RBCs, and very weak reactivity with group A RBCs. Saliva inhibition testing and enzyme treatment of RBCs concluded the patient to be of “A<sub>h</sub> para-Bombay” phenotype. The patient’s Lewis phenotype was Le(a–b+). This patient’s serum also had cold-reacting anti-IH along with anti-B. This case report highlights the importance of performing an advanced immunohematologic workup, including adsorption, elution, enzyme treatment, and saliva inhibition testing for identification of weak A or B subgroups as well as the rare para-Bombay blood group, when routine ABO typing, using forward and reverse grouping, is inconclusive. Accurate identification of blood group helps in preventing transfusion-related adverse events and encouraging safe transfusion practice.</p>","PeriodicalId":13357,"journal":{"name":"Immunohematology","volume":"37 4","pages":"160-164"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39770554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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