BLOOD DONOR DEFERRAL PATTERN AS A KEY TOOL FOR SAFE BLOOD TRANSFUSION PRACTICE: A RETROSPECTIVE STUDY FROM NORTH EAST INDIA.

Abstract

Background: Safe blood transfusion practice starts with meticulous selection of blood donors. Recruitment and retention of healthy safe donor is crucial to maintain adequate supply of blood units available for transfusion. The present study was undertaken with the aim to analyze the rate as well as the causes of pre-donation deferral and blood units discarded following screening test for Transfusion Transmitted Infection (TTI). Material and methods: This retrospective hospital-based study was conducted in the Blood Centre, Jorhat Medical College and Hospital, Jorhat, Assam over a period of one year i.e., from 1st October, 2021 to 30th September, 2022. All donors who attended the Blood Centre as well as outdoor voluntary blood donation camps were included in the study. Each and every blood donor was screened as per the guidelines of Drugs and Cosmetics (Second Amendment) Rules, 2020. Transfusion Transmitted Infection (TTI) screening tests were done on the collected blood units and those found to be positive were discarded. The donor records were reviewed and analyzed according to sex, donor type (voluntary or replacement) and reason for deferral. Results: Out of 17030 prospective donors, 14372 (84.39%) donors were accepted for blood donation while 2658 (15.61%) donors were deferred. The deferral rate was higher in females i.e., 35.63% (88 out of 247) compared to males i.e., 15.31% (2570 out of 16783). Deferral percentage of voluntary donors was 19% (2563 out of 13485) and that of replacement donor was 2.68% (95 out of 3545). The rate of temporary and permanent deferral was 99.17% (2636 out of 2658) and 0.83% (22 out of 2658) respectively. The most common cause of temporary deferral was found to be low hemoglobin (41.81%) whereas in case of permanent deferral high risk behaviour (50%) was found to be the leading cause. 3.21% (462 out of 14372) blood units were discarded following screening tests for Transfusion Transmitted Infection (TTI). Hepatitis C was the most common cause of blood units discarded. Conclusion:Asystematic and well organised approach to selection of blood donors is the mainstay of safe blood transfusion practice. Analysis of donor deferral pattern guides us to recruit safe healthy donors and to maintain an adequate pool of blood units available for transfusion