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Coagulation Profile at Diagnosis in Patients with Acute Lymphoblastic Leukemia

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Abstract

Objective

To evaluate the coagulation parameters at the time of diagnosis in pediatric acute lymphoblastic leukemia (ALL) patients.

Methods

A total of 65 newly diagnosed ALL patients upto 18 y of age along with 30 age and sex matched controls were included in the study. Coagulation tests including Prothrombin Time (PT), Activated Partial Thromboplastin Time (APTT), Fibrinogen (FBG) assay, D-dimer (D-DI) assay, Coagulation inhibitor levels and tests for fibrinolysis were performed.

Results

At baseline, APTT of the patients was significantly prolonged (p 0.033), but PT and fibrinogen were comparable in the two groups. Protein C (PC) and Protein S (PS) were both significantly reduced in the cases, while antithrombin was comparable to control values (p < 0.001, p < 0.001 & p = 0.828 respectively). Tissue plasminogen activator levels (tPA) were significantly lower in the cases (p < 0.001) but Plasminogen activator inhibitor type 1 (PAI-1) values were comparable. D-DI levels were significantly high (p < 0.001).

Conclusions

The onset of leukemia is associated with hemostatic derangement favouring hypercoagulability. The coagulopathy is due to thrombin activation (as evidenced by raised d-dimer). The decreased fibrinolysis (due to reduced tPA and raised PAI-1) and low levels of PC and PS contribute to the hypercoagulable state at the time of diagnosis.

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Acknowledgments

The authors thank Dr. Bhavuk Garg for help in statistical analysis and Dr. Arushi Sehgal for help with data compilation and statistical analysis.

Contributions

SS: Conducted the study, performed the tests and statistics, analysed the data and wrote the article. SS: Supervised the study, edited the article and will act as guarantor for the paper; JC and AN: Supervised the study.

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Authors and Affiliations

  1. Department of Pathology, Lady Hardinge Medical College and Associated Kalawati Saran Children’s Hospital, New Delhi, 110001, India

    Shivali Sehgal, Sunita Sharma & Anita Nangia

  2. Department of Pediatrics, Lady Hardinge Medical College and Associated Kalawati Saran Children’s Hospital, New Delhi, 110001, India

    Jagdish Chandra

Authors
  1. Shivali Sehgal
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  2. Sunita Sharma
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  3. Jagdish Chandra
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  4. Anita Nangia
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Correspondence to Shivali Sehgal.

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Sehgal, S., Sharma, S., Chandra, J. et al. Coagulation Profile at Diagnosis in Patients with Acute Lymphoblastic Leukemia. Indian J Pediatr 83, 1082–1086 (2016). https://doi.org/10.1007/s12098-016-2114-2

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  • DOI: https://doi.org/10.1007/s12098-016-2114-2

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