Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

557 questions · 600 findings · 75 reviews

No studies found 188 · 31.3%GRADE not reported 62 · 10.3%Very low 154 · 25.7%Low 122 · 20.3%Moderate 62 · 10.3%High 12 · 2%

Prophylactic plasma transfusion before surgery/invasive procedures vs no prophylactic plasma transfusion before surgery/invasive procedures (colloid, crystalloid, placebo, or no treatment)

Major bleeding · patients undergoing non‐cardiac surgery/invasive procedures

It is very uncertain whether prophylactic plasma transfusion before surgery/invasive procedures changes major bleeding within 24 hours № of participants: 148 (2 RCTs) compared with no prophylactic plasma transfusion before surgery/invasive… (very low certainty).

1 finding from 1 review

Prophylactic plasma transfusion before surgery/invasive procedures vs no prophylactic plasma transfusion before surgery/invasive procedures (colloid, crystalloid, placebo, or no treatment)

Number of transfusions per participant within 7 days ‐ not reported · patients undergoing non‐cardiac surgery/invasive procedures
1 finding from 1 review

Prophylactic plasma transfusion before surgery/invasive procedures vs no prophylactic plasma transfusion before surgery/invasive procedures (colloid, crystalloid, placebo, or no treatment)

Number of individuals requiring a transfusion within 7 days № of participants: 60 (1 RCT) · patients undergoing non‐cardiac surgery/invasive procedures

It is very uncertain whether prophylactic plasma transfusion before surgery/invasive procedures changes number of individuals requiring a transfusion within 7 days № of… compared with no prophylactic plasma transfusion before surgery/invasive… (very low certainty).

1 finding from 1 review

Prophylactic plasma transfusion before surgery/invasive procedures vs no prophylactic plasma transfusion before surgery/invasive procedures (colloid, crystalloid, placebo, or no treatment)

Serious adverse events measured by plasma transfusion‐related complications within 24 hours № of participants: 21 (1 RCT) · patients undergoing non‐cardiac surgery/invasive procedures
1 finding from 1 review

Prophylactic plasma transfusion before surgery/invasive procedures vs no prophylactic plasma transfusion before surgery/invasive procedures (colloid, crystalloid, placebo, or no treatment)

Serious adverse events measured by surgery or procedure‐related complications within 30 days ‐ not reported · patients undergoing non‐cardiac surgery/invasive procedures

The review found no eligible studies for this question.

1 finding from 1 review

Prophylactic plasma transfusion before surgery/invasive procedures vs no prophylactic plasma transfusion before surgery/invasive procedures (colloid, crystalloid, placebo, or no treatment)

Quality of life ‐ not reported · patients undergoing non‐cardiac surgery/invasive procedures

The review found no eligible studies for this question.

1 finding from 1 review

Prophylactic plasma transfusion before surgery/invasive procedures vs alternative haemostatic agents

All‐cause mortality up to 30 days ‐ not reported · patients undergoing non‐cardiac surgery/invasive procedures

The review found no eligible studies for this question.

1 finding from 1 review

Prophylactic plasma transfusion before surgery/invasive procedures vs alternative haemostatic agents

Bleeding ‐ major/excessive · patients undergoing non‐cardiac surgery/invasive procedures

It is very uncertain whether prophylactic plasma transfusion before surgery/invasive procedures changes major bleeding within 24 hours № of participants: 21 (1 RCT) compared with alternative haemostatic agents (very low certainty).

1 finding from 1 review

Vaginal or abdominal POP surgery with concomitant continence procedure vs no concomitant continence procedure

Vaginal POP surgery with or without concomitant continence surgery: additional MUS vs vaginal repair alone · continent women with POP

Vaginal or abdominal POP surgery with concomitant continence procedure showed no clear difference in vaginal POP surgery with or without concomitant continence surgery:… compared with no concomitant continence procedure (moderate certainty).

1 finding from 1 review

Vaginal or abdominal POP surgery with concomitant continence procedure vs no concomitant continence procedure

Abdominal POP surgery with or without concomitant continence surgery: additional Burch colposuspension vs sacrocolpopexy alone · continent women with POP

Vaginal or abdominal POP surgery with concomitant continence procedure showed no clear difference in abdominal POP surgery with or without concomitant continence… compared with no concomitant continence procedure (low certainty).

1 finding from 1 review

Whole brain radiation therapy (WBRT) + stereotactic radiosurgery (SRS) vs WBRT

Overall survival · Patients with brain metastases

Whole brain radiation therapy (WBRT) + stereotactic radiosurgery (SRS) showed no clear difference in overall survival compared with WBRT (moderate certainty).

1 finding from 1 review

Whole brain radiation therapy (WBRT) + stereotactic radiosurgery (SRS) vs WBRT

Disease‐specific survival · Patients with brain metastases

Whole brain radiation therapy (WBRT) + stereotactic radiosurgery (SRS) showed no clear difference in disease‐specific survival compared with WBRT (moderate certainty).

1 finding from 1 review

Whole brain radiation therapy (WBRT) + stereotactic radiosurgery (SRS) vs WBRT

Local tumor control · Patients with brain metastases

Whole brain radiation therapy (WBRT) + stereotactic radiosurgery (SRS) probably leads to lower local tumor control compared with WBRT (moderate certainty).

1 finding from 1 review

Whole brain radiation therapy (WBRT) + stereotactic radiosurgery (SRS) vs WBRT

Functionally independent survival (KPS) · Patients with brain metastases

Whole brain radiation therapy (WBRT) + stereotactic radiosurgery (SRS) showed no clear difference in functionally independent survival (KPS) compared with WBRT (moderate certainty).

1 finding from 1 review

Subfascial endoscopic perforator vein surgery (SEPS) + saphenous surgery vs saphenous surgery

The proportion of pressure ulcers healed · people with venous leg ulcers

It is very uncertain whether subfascial endoscopic perforator vein surgery (SEPS) + saphenous… changes proportion of ulcers healed at 12 months compared with saphenous surgery (very low certainty).

1 finding from 1 review

Subfascial endoscopic perforator vein surgery (SEPS) + saphenous surgery vs saphenous surgery

Recurrence of ulcers · people with venous leg ulcers

It is very uncertain whether subfascial endoscopic perforator vein surgery (SEPS) + saphenous… changes ulcer recurrence at 12 months compared with saphenous surgery (very low certainty).

1 finding from 1 review

Subfascial endoscopic perforator vein surgery (SEPS) + saphenous surgery vs saphenous surgery

Adverse events · people with venous leg ulcers

It is very uncertain whether subfascial endoscopic perforator vein surgery (SEPS) + saphenous… changes adverse events compared with saphenous surgery (very low certainty).

1 finding from 1 review