What do systematic reviews say?

Comparison of plasma transfusions vs no plasma transfusions when the INR is 1.5 prior to central venous catheter insertion

It is very uncertain whether comparison of plasma transfusions changes minor procedure‐related bleeding compared with no plasma transfusions when the INR is 1.5 prior to central venous… (very low certainty).

• Plasma transfusions prior to insertion of central lines for people with abnormal coagulation 2016 · Cochrane Headline outcomes only
  RR 0.67 [0.12, 3.7]
  1 study · 58 participants
  Very low

Prophylactic platelet transfusion prior to surgery vs alternative treatment

It is very uncertain whether prophylactic platelet transfusion prior to surgery changes number of participants with minor procedure‐related bleeding within… compared with alternative treatments (very low certainty).

• Prophylactic platelet transfusions prior to surgery for people with a low platelet count 2018 · Cochrane Headline outcomes only
  RR 0.89 [0.06, 13.23]
  1 study · 36 participants
  Very low

Intervention not reported

• Prophylactic platelet transfusions prior to surgery for people with a low platelet count 2018 · Cochrane Headline outcomes only
  no estimate extracted
  1 study · 65 participants
  Very low

Prophylactic platelet transfusion prior to surgery vs no prophylactic platelet transfusion prior to surgery

It is very uncertain whether prophylactic platelet transfusion prior to surgery changes the number of participants with minor procedure‐related bleeding… compared with no prophylactic platelet transfusion prior to surgery (very low certainty).

• Prophylactic platelet transfusions prior to surgery for people with a low platelet count 2018 · Cochrane Headline outcomes only
  RR 1.29 [0.9, 1.85]
  1 study · 64 participants
  Very low