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Does endocarditis require routine coagulation screening?

Mohammad Alkhalil1, Stephen Tate

  • 1Lagan Valley Hospital, Lisburn, UK. mak83@mail2world.com

BMJ Case Reports
|July 14, 2012
PubMed
Summary
This summary is machine-generated.

Antibiotic use for endocarditis may cause vitamin K deficiency, leading to anemia and prolonged clotting times. This case highlights a potential complication of prolonged antibiotic therapy impacting coagulation.

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Area of Science:

  • Internal Medicine
  • Pharmacology
  • Hematology

Background:

  • Endocarditis is a serious infection requiring aggressive antibiotic treatment.
  • Gut microbiota plays a crucial role in synthesizing essential vitamins, including Vitamin K.
  • Vitamin K is vital for the synthesis of coagulation factors.

Observation:

  • A patient treated for endocarditis developed unexplained anemia and prolonged prothrombin time.
  • No anticoagulants were administered, ruling out medication-induced coagulopathy.
  • The patient was on a prolonged course of antibiotics for endocarditis.

Findings:

  • The clinical presentation suggests iatrogenic vitamin K deficiency secondary to antibiotic-induced gut dysbiosis.
  • Antibiotics can disrupt the normal gut flora, impairing vitamin K absorption and synthesis.
  • This disruption can lead to a bleeding diathesis or coagulopathy.

Implications:

  • Clinicians should consider vitamin K deficiency in patients on prolonged antibiotics presenting with unexplained bleeding or coagulopathy.
  • Monitoring coagulation parameters and potentially vitamin K levels may be warranted in such cases.
  • This case underscores the importance of understanding the broader impact of antibiotics on host physiology.