The Role of ISTH Bleeding Assessment Tool in Diagnosing Patients with Suspected Bleeding Disorders


  • Aiman Minhas Chughtai Lab
  • Ayesha Younas
  • Hadia Eiman
  • Iqra Rasool
  • Mavra Fatima
  • Ayisha Imran
  • A S Chughtai


Bleeding disorder, ISTH BAT score, Light transmission aggregometry


Objective: To compare the ISTH-BAT score with the results of light transmission aggregometry in patients suspected of having bleeding disorders, particularly those with platelet function disorders.

Methodology: This study was conducted at the Chughtai Institute of Pathology, Lahore, from January 2022 to March 2023. A total of 183 patients with suspected bleeding disorders, aged between 3 months and 18 years, were enrolled. The ISTH-BAT questionnaire was administered, and scores were calculated and compared with the results of light transmission aggregometry. Data were analyzed using SPSS-23, with the p-value calculated using the chi-square test.

Results: The study comprised 183 patients, including 97 (53%) males and 86 (47%) females, with ages ranging from 1 to 16 years and a median age of 6 years. The BAT score was calculated for each patient using the ISTH questionnaire. A score below 3 was considered normal, while a score above 3 was considered abnormal. Among the patients, 73 (39.8%) had a normal ISTH-BAT score, while 110 (60.1%) had an abnormal score. Of the 110 patients with an abnormal ISTH-BAT score, 90 (81.8%) were diagnosed with a bleeding disorder, while 20 (18.1%) did not have a bleeding disorder.

Conclusion: In conclusion, the ISTH-BAT score is an effective tool for assessing patients with suspected bleeding disorders, particularly for those with suspected platelet function disorders, which can be rare and challenging to diagnose.






Original Article