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Complete atrioventricular block induced by rituximab in monotherapy in an aged patient with non-Hodgkin's diffuse

J M Cervera Grau1, G Esquerdo Galiana, A Belso Candela

  • 1Oncology Department, Hospital General de Elda, Elda, Alicante, Spain. cerveragrau@yahoo.es

Clinical & Translational Oncology : Official Publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico
|May 21, 2008
PubMed

Insights

Rituximab can cause heart problems. This report details a rare case of complete atrioventricular block in an elderly patient receiving Rituximab for non-Hodgkin

Area of Science:

  • Cardiology
  • Oncology
  • Pharmacology

Background:

  • Non-Hodgkin's diffuse large B-cell lymphoma (NHDLBCL) is a type of cancer.
  • Rituximab is a targeted therapy used for NHDLBCL, particularly in advanced stages or when comorbidities are present.
  • Cardiotoxicity is a known side effect of Rituximab, but specific conduction abnormalities are less documented.

Observation:

  • A case study of an elderly female patient treated with Rituximab monotherapy for NHDLBCL.
  • The patient developed a complete atrioventricular block (CAVB) after receiving the fifth dose of Rituximab.
  • This represents a previously unreported adverse event associated with Rituximab treatment.

Findings:

  • The development of complete atrioventricular block (CAVB) as a direct consequence of Rituximab administration.
  • This specific cardiac adverse event has not been previously described in medical literature.
  • Highlights a potential, albeit rare, cardiotoxic manifestation of Rituximab therapy.

Implications:

  • Clinicians should be aware of the potential for Rituximab to induce complete atrioventricular block (CAVB).
  • Further investigation may be warranted to understand the mechanism of Rituximab-induced cardiotoxicity and CAVB.
  • This case highlights the importance of vigilant cardiac monitoring in patients receiving Rituximab, especially the elderly.

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