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논문 기본 정보

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학술저널
저자정보
Christopher Chin Keong Liam (Perth Blood Institute Australia) Jim Yu-Hsiang Tiao (Perth Blood Institute Australia) Yee Yee Yap (Haematology Hospital Ampang Malaysia) Yi Lin Lee (Centre for Clinical Trials Hospital Ampang Selangor Malaysia) Jameela Sathar (Haematology Hospital Ampang Malaysia) Simon McRae (Haematology Northern Cancer Service Tasmania Australia) Amanda Davis (Haematology The Alfred Hospital MelbourneAustralia) Jennifer Curnow (Haematology Westmead Hospital New South Wales Australia) Robert Bird (Haematology Princess Alexandra Hospital Woolloongabba Queensland Australia) Philip Choi (Haematology The Canberra Hospital Canberra Australia) Pantep Angchaisuksiri (Haematology and Medicine Ramathibodi Hospital Mahidol University Bangkok Thailand) Sim Leng Tien (Haematology Singapore General Hospital Singapore) Joyce Ching Mei Lam (Haematology KK Women's and Children's Hospital Singapore) Doyeun Oh (Internal Medicine Cha Bundang Medical Centre Cha University Seongnam Korea) Jin Seok Kim (Internal Medicine Yonsei University College of Medicine Seoul Korea) Sung-Soo Yoon (Internal Medicine Seoul National University Hospital Seoul Korea) Raymond Siu-Ming Wong (Department of Medicine and Therapeutics The Chinese University of Hong Kong Prince of Wales Hospital Hong Kong) Carolyn Lauren (Haematology Canterbury District Health Board Christchurch Auckland New Zealand) Eileen Grace Merriman (Haematology North Shore Hospital Auckland New Zealand) Anoop Enjeti (Calvery Mater Hospital Newcastle Waratah New South Wales Australia) Mark Smith (Haematology Canterbury District Health Board Christchurch Auckland New Zealand) Ross Ian Baker (Perth Blood Institute Perth Australia)
저널정보
대한혈액학회 Blood Research Blood Research Vol.58 No.1
발행연도
2023.3
수록면
36 - 41 (6page)
DOI
10.5045/br.2023.2022133

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Background The PLASMIC score is a convenient tool for predicting ADAMTS13 activity of <10%. Lactate dehydrogenase (LDH) is widely used as a marker of haemolysis in thrombotic thrombocytopenic purpura (TTP) monitoring, and could be used as a replacement marker for lysis. We aimed to validate the PLASMIC score in a multi-centre Asia Pacific region, and to explore whether LDH could be used as a replacement marker for lysis. Methods Records of patients with thrombotic microangiopathy (TMA) were reviewed. Patients’ ADAMTS13 activity levels were obtained, along with clinical/laboratory findings relevant to the PLASMIC score. Both PLASMIC scores and PLASMIC-LDH scores, in which LDH replaced traditional lysis markers, were calculated. We generated a receiver operator characteristics (ROC) curve and compared the area under the curve values (AUC) to determine the predictive ability of each score. Results 46 patients fulfilled the inclusion criteria, of which 34 had ADAMTS13 activity levels of <10%. When the patients were divided into intermediate-to-high risk (scores 5‒7) and low risk (scores 0‒4), the PLASMIC score showed a sensitivity of 97.1% and specificity of 58.3%, with a positive predictive value (PPV) of 86.8% and negative predictive value (NPV) of 87.5%. The PLASMIC-LDH score had a sensitivity of 97.1% and specificity of 33.3%, with a PPV of 80.5% and NPV of 80.0%. Conclusion Our study validated the utility of the PLASMIC score, and demonstrated PLASMIC-LDH as a reasonable alternative in the absence of traditional lysis markers, to help identify high-risk patients for treatment via plasma exchange.

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