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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

1,558 questions in 115 reviews · Vascular

current versions
No studies 346 · 22.2%Ungraded 90 · 5.8%Very low 281 · 18%Low 477 · 30.6%Moderate 313 · 20.1%High 51 · 3.3%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

QuestionEffectEvidenceStatus / GRADE
Oral DTIs vs conventional anticoagulation
Major bleeding (7 months) · participants with diagnosed DVT
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
OR 0.58 [0.38, 0.89]3 studies · 5994 participantsHigh
Oral factor Xa inhibitors vs conventional anticoagulation
Recurrent VTE (3 to 12 months) · participants with diagnosed DVT
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
OR 0.85 [0.71, 1.01]13 studies · 17505 participantsModerate
Oral factor Xa inhibitors vs conventional anticoagulation
Recurrent DVT (3 to 12 months) · participants with diagnosed DVT
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
OR 0.7 [0.49, 1.01]9 studies · 16439 participantsModerate
Oral factor Xa inhibitors vs conventional anticoagulation
Fatal PE (3 to 12 months) · participants with diagnosed DVT
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
OR 1.18 [0.69, 2.02]6 studies · 15082 participantsModerate
Oral direct thrombin inhibitors (DTIs) vs conventional anticoagulation
Recurrent PEa · people with a pulmonary embolism, confirmed by standard imaging techniques
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
OR 1.02 [0.5, 2.04]1 study · 1602 participantsModerate
Oral factor Xa inhibitors vs conventional anticoagulation
All‐cause mortality · people with a pulmonary embolism, confirmed by standard imaging techniques
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
OR 1.16 [0.79, 1.7]1 study · 4817 participantsModerate
Oral factor Xa inhibitors vs conventional anticoagulation
Major bleedinge · people with a pulmonary embolism, confirmed by standard imaging techniques
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
OR 0.71 [0.36, 1.41]8 studies · 11447 participantsLow
Oral factor Xa inhibitors vs conventional anticoagulation
Health‐related quality of life · people with a pulmonary embolism, confirmed by standard imaging techniques
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
no estimate extractedNRNo studies
Oral direct thrombin inhibitors (DTIs) vs conventional anticoagulation
Recurrent VTEc · people with a pulmonary embolism, confirmed by standard imaging techniques
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
OR 0.93 [0.52, 1.66]1 study · 1602 participantsModerate
Oral direct thrombin inhibitors (DTIs) vs conventional anticoagulation
DVTd · people with a pulmonary embolism, confirmed by standard imaging techniques
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
OR 0.79 [0.29, 2.13]1 study · 1602 participantsModerate
Oral direct thrombin inhibitors (DTIs) vs conventional anticoagulation
All‐cause mortality · people with a pulmonary embolism, confirmed by standard imaging techniques
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
no estimate extractedNRNo studies
Oral direct thrombin inhibitors (DTIs) vs conventional anticoagulation
Major bleedinge · people with a pulmonary embolism, confirmed by standard imaging techniques
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
OR 0.5 [0.15, 1.68]1 study · 1527 participantsModerate
Oral direct thrombin inhibitors (DTIs) vs conventional anticoagulation
Health‐related quality of life · people with a pulmonary embolism, confirmed by standard imaging techniques
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
no estimate extractedNRNo studies
Oral factor Xa inhibitors vs conventional anticoagulation
Recurrent PEa · people with a pulmonary embolism, confirmed by standard imaging techniques
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
OR 0.92 [0.66, 1.29]3 studies · 8186 participantsModerate
Oral factor Xa inhibitors vs conventional anticoagulation
Recurrent VTEc · people with a pulmonary embolism, confirmed by standard imaging techniques
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
OR 0.83 [0.66, 1.03]8 studies · 11416 participantsModerate
Oral factor Xa inhibitors vs conventional anticoagulation
DVTd · people with a pulmonary embolism, confirmed by standard imaging techniques
Oral direct thrombin inhibitors or oral factor Xa inhibitors versus conventional anticoagulants for the… (2023) · Cochrane
OR 0.77 [0.48, 1.25]2 studies · 8151 participantsModerate
Balneotherapy vs no treatment
Disease severity signs and symptoms score (VCSS, scale 0–27, lower is better) · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extracted3 studies · 671 participantsModerate
Balneotherapy vs melilotus officinalis
Adverse effects of treatment · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extractedNRNo studies
Balneotherapy vs melilotus officinalis
Pain (% of participants) · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
OR 0.29 [0.03, 2.87]1 study · 35 participantsVery low
Balneotherapy vs melilotus officinalis
Oedema (% of participants) · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
OR 0.21 [0.02, 2.27]1 study · 35 participantsVery low
Balneotherapy vs melilotus officinalis
Incidence of leg ulcer · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extractedNRNo studies
Balneotherapy vs melilotus officinalis
Skin pigmentation changes · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extractedNRNo studies
Balneotherapy vs dryland exercise
Disease severity signs and symptoms score · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extractedNRNo studies
Balneotherapy vs dryland exercise
Health‐related quality of life · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extracted1 study · 34 participantsVery low
Balneotherapy vs dryland exercise
Adverse effects of treatment · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extractedNRNo studies
Balneotherapy vs dryland exercise
Pain · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extractedNRNo studies
Balneotherapy vs dryland exercise
Oedema (leg volume in mL, lower is better) · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extracted1 study · 34 participantsLow
Balneotherapy vs no treatment
Health‐related quality of life(CIVIQ2, scale 20–100, lower is better) · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extracted2 studies · 153 participantsVery low
Balneotherapy vs dryland exercise
Incidence of leg ulcer · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extractedNRNo studies
Balneotherapy vs dryland exercise
Skin pigmentation changes · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extractedNRNo studies
Balneotherapy vs no treatment
Adverse effects of treatment (thromboembolic event) · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
OR 0.35 [0.09, 1.42]3 studies · 584 participantsLow
Balneotherapy vs no treatment
Pain (VAS, scale 0–10, lower is better) · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extracted2 studies · 354 participantsLow
Balneotherapy vs no treatment
Oedema(leg circumference in cm, lower is better) · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extracted3 studies · 369 participantsVery low
Balneotherapy vs no treatment
Incidence of leg ulcer · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
OR 1.06 [0.27, 4.14]2 studies · 449 participantsVery low
Balneotherapy vs no treatment
Skin pigmentation changes (pigmentation index, 0–10, lower is better) · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extracted1 study · 59 participantsLow
Balneotherapy vs melilotus officinalis
Disease severity signs and symptoms score · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extractedNRNo studies
Balneotherapy vs melilotus officinalis
Health‐related quality of life · people with chronic venous insufficiency
Balneotherapy for chronic venous insufficiency (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings: Tranexamic acid vs placebo
Red cell transfusions (units per participant) up to 30 days post surgery · people aged 18 and over undergoing vascular surgery
Drugs to reduce bleeding and transfusion in major open vascular or endovascular surgery: a systematic review… (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings: Fibrin sealant vs usual care
Risk of a thrombotic/thromboembolic event (MI, CVA, DVT, PE) · people aged 18 and over undergoing vascular surgery
Drugs to reduce bleeding and transfusion in major open vascular or endovascular surgery: a systematic review… (2023) · Cochrane
RR 0.11 [0, 5.84]1 study · 39 participantsVery low
Summary of findings: Tranexamic acid vs placebo
All‐cause mortality up to 30 days · people aged 18 and over undergoing vascular surgery
Drugs to reduce bleeding and transfusion in major open vascular or endovascular surgery: a systematic review… (2023) · Cochrane
no estimate extracted1 study · 100 participantsVery low
Summary of findings: Tranexamic acid vs placebo
Risk of receiving any allogeneic blood product (data only available for intraoperative blood product use) · people aged 18 and over undergoing vascular surgery
Drugs to reduce bleeding and transfusion in major open vascular or endovascular surgery: a systematic review… (2023) · Cochrane
RR 0.66 [0.11, 3.95]1 study · 100 participantsVery low
Summary of findings: Tranexamic acid vs placebo
Risk of reoperation or repeat procedure for bleeding within 7 days · people aged 18 and over undergoing vascular surgery
Drugs to reduce bleeding and transfusion in major open vascular or endovascular surgery: a systematic review… (2023) · Cochrane
RR 0.33 [0.01, 7.99]1 study · 100 participantsVery low
Summary of findings: Tranexamic acid vs placebo
Risk of a thrombotic/thromboembolic event (MI, CVA, DVT, PE) · people aged 18 and over undergoing vascular surgery
Drugs to reduce bleeding and transfusion in major open vascular or endovascular surgery: a systematic review… (2023) · Cochrane
RR 1.1 [0.88, 1.36]1 study · 1360 participantsLow
Summary of findings: Fibrin sealant vs usual care
Red cell transfusions (units per participant) up to 30 days post surgery · people aged 18 and over undergoing vascular surgery
Drugs to reduce bleeding and transfusion in major open vascular or endovascular surgery: a systematic review… (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings: Fibrin sealant vs usual care
All‐cause mortality up to 30 days · people aged 18 and over undergoing vascular surgery
Drugs to reduce bleeding and transfusion in major open vascular or endovascular surgery: a systematic review… (2023) · Cochrane
RR 0.44 [0.11, 1.76]3 studies · 585 participantsVery low
Summary of findings: Fibrin sealant vs usual care
Risk of receiving any allogeneic blood product up to 30 days · people aged 18 and over undergoing vascular surgery
Drugs to reduce bleeding and transfusion in major open vascular or endovascular surgery: a systematic review… (2023) · Cochrane
no estimate extractedNRNo studies
Summary of findings: Fibrin sealant vs usual care
Risk of reoperation or repeat procedure for bleeding within 7 days · people aged 18 and over undergoing vascular surgery
Drugs to reduce bleeding and transfusion in major open vascular or endovascular surgery: a systematic review… (2023) · Cochrane
RR 1.03 [0.31, 3.4]1 study · 160 participantsVery low
Motor imaging vs usual care
Prosthesis use · people with transtibial amputation due to peripheral arterial disease or diabetes
Interventions for motor rehabilitation in people with transtibial amputation due to peripheral arterial… (2023) · Cochrane
no estimate extracted1 study · 8 participantsUngraded
Gait training protocol focused on impairment level vs gait training protocol focused on task level
Quality of life · people with transtibial amputation due to peripheral arterial disease or diabetes
Interventions for motor rehabilitation in people with transtibial amputation due to peripheral arterial… (2023) · Cochrane
no estimate extractedNRNo studies
Gait training protocol focused on impairment level vs gait training protocol focused on task level
Mobility assessment · people with transtibial amputation due to peripheral arterial disease or diabetes
Interventions for motor rehabilitation in people with transtibial amputation due to peripheral arterial… (2023) · Cochrane
no estimate extracted1 study · 22 participantsVery low