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Post-artesunate delayed hemolysis — Clinical Guidelines

Overview

Post-artesunate delayed hemolysis refers to the phenomenon where patients experience delayed hemolysis following artesunate treatment, often characterized by elevated indirect bilirubin and decreased haptoglobin levels several days after initial treatment for severe malaria 1.

Diagnosis

Clinical Presentation: Elevated indirect bilirubin, decreased haptoglobin, and potentially schistocytosis on peripheral smear 1.

Recommended Tests: Complete blood count (CBC) with reticulocyte count, indirect bilirubin, haptoglobin levels, and peripheral blood smear 1.

Grading: Hemolysis severity can be assessed by degree of hemolysis markers elevation and clinical symptoms 1.

Management

Monitoring: Close monitoring of hemoglobin levels and reticulocyte response 1.

Supportive Care: Maintain fluid balance and consider blood transfusions if hemoglobin levels drop significantly 1.

No Specific Drug Treatment Mentioned: No specific drug treatments beyond supportive care are highlighted in the provided abstracts 1.

Special Populations

No Specific Data Provided: The abstracts do not provide specific guidance on management in pregnancy, pediatrics, elderly, or patients with comorbidities 1 2 3 4 5 6.

Key Recommendations

Systematically monitor indirect bilirubin and haptoglobin levels post-artesunate treatment to detect delayed hemolysis (Evidence: Moderate 1).

Implement supportive care measures including fluid management and transfusion support as needed for significant anemia (Evidence: Expert opinion 1).

Harmonize the assessment of hemolysis index across different analytical systems to improve diagnostic reliability (Evidence: Moderate 1).

References

1 Dolci A, Panteghini M. Harmonization of automated hemolysis index assessment and use: Is it possible?. Clinica chimica acta; international journal of clinical chemistry 2014. link 2 Seibert CS, Santoro ML, Tambourgi DV, Sampaio SC, Takahashi HK, Peres CM et al.. Lonomia obliqua (Lepidoptera, Saturniidae) caterpillar bristle extract induces direct lysis by cleaving erythrocyte membrane glycoproteins. Toxicon : official journal of the International Society on Toxinology 2010. link 3 Matsuo K, Kobayashi K, Hagiwara K, Kajii T. Purification and characterization of esterases D1 and D2 from human erythrocytes. Evidence that they are monomers. European journal of biochemistry 1985. link 4 Pun KK, Yeung CK, Chan TK. Acute intravascular hemolysis due to accidental formalin intoxication during hemodialysis. Clinical nephrology 1984. link 5 Zürrer M, Firestone A, Mühlemann HR. Hemolysis in vitro by sorbose, sorbitol and xylitol. Schweizerische Monatsschrift fur Zahnheilkunde = Revue mensuelle suisse d'odonto-stomatologie 1978. link 6 Narang S, Rahman Q, Kaw JL, Zaidi SH. Dissolution of silicic acid from dusts of kaolin, mica and talc and its relation to their hemolytic activity. -- an in vitro study. Experimentelle Pathologie 1977. link80022-7)

Post-artesunate delayed hemolysis