Should plasma be transfused prophylactically before invasive procedures?

Area of Science:

• Transfusion Medicine
• Hematology
• Clinical Practice Guidelines

Background:

• Plasma transfusion is frequently used to correct abnormal coagulation tests before invasive procedures.
• Evidence-based guidelines for this practice are lacking.
• Clinicians are increasingly questioning the necessity of prophylactic plasma transfusions due to transfusion risks.

Purpose of the Study:

• To review recent literature on the efficacy of prophylactic plasma transfusions.
• To determine if plasma transfusion supports or refutes current clinical practice.

Main Methods:

• Systematic review of recent publications.
• Analysis of clinical studies and reviews.
• Evaluation of evidence regarding coagulation test correction and bleeding risk reduction.

Main Results:

• Recent studies, though small, indicate no benefit from prophylactic plasma transfusions.
• Transfusion does not effectively correct abnormal coagulation tests.
• There is no demonstrated reduction in perceived bleeding risk.

Conclusions:

• Abnormal pre-procedure coagulation tests, often due to sensitive reagents, do not reliably predict bleeding risk in asymptomatic patients.
• Plasma transfusion for mild to moderate abnormalities does not correct these tests or lower bleeding risk.
• The practice of prophylactic plasma transfusion lacks supporting evidence and may be unnecessary.