Gap finder

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)

346 questions in 59 reviews · Vascular

current versions
No studies 346 · 100%Ungraded 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

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
Foam vs sclerotherapy (any sclerosant)
Recurrence · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Foam vs sclerotherapy (any sclerosant)
Time to resolution · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Foam vs sclerotherapy (any sclerosant)
Quality of life · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Laser vs sclerotherapy
Recurrence · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Laser vs sclerotherapy
Time to resolution · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Laser vs sclerotherapy
Quality of life · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Sclerotherapy vs placebo
Recurrence · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Laser plus sclerotherapy vs sclerotherapy
Recurrence · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Laser plus sclerotherapy vs sclerotherapy
Time to resolution · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Laser plus sclerotherapy vs sclerotherapy
Quality of life · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Sclerotherapy vs placebo
Time to resolution · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Sclerotherapy (hypertonic glucose plus polidocanol) vs sclerotherapy (hypertonic glucose)
Recurrence · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Sclerotherapy (hypertonic glucose plus polidocanol) vs sclerotherapy (hypertonic glucose)
Time to resolution · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Sclerotherapy (hypertonic glucose plus polidocanol) vs sclerotherapy (hypertonic glucose)
Quality of life · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Sclerotherapy plus compression vs sclerotherapy alone
Pain · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Sclerotherapy plus compression vs sclerotherapy alone
Recurrence · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Sclerotherapy plus compression vs sclerotherapy alone
Time to resolution · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
Sclerotherapy vs placebo
Quality of life · people with telangiectasias and reticular veins
Treatment for telangiectasias and reticular veins (2021) · Cochrane
no estimate extractedNRNo studies
[Axillary] B‐mode ultrasound guidance vs palpation and landmarks
First‐attempt success rate · adults requiring axillary artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Dorsalis pedis] B‐mode ultrasound guidance vs palpation and landmarks
Major haematoma · adults requiring dorsalis pedis artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Dorsalis pedis] B‐mode ultrasound guidance vs palpation and landmarks
Adverse events (pain) · adults requiring dorsalis pedis artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Dorsalis pedis] B‐mode ultrasound guidance vs palpation and landmarks
Quality of life · adults requiring dorsalis pedis artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Axillary] B‐mode ultrasound guidance vs palpation and landmarks
Pseudoaneurysm · adults requiring axillary artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] B‐mode ultrasound vs Doppler assistance
Pseudoaneurysm · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] B‐mode ultrasound vs Doppler assistance
Major haematoma · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] B‐mode ultrasound vs Doppler assistance
Adverse events (pain) · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] B‐mode ultrasound vs Doppler assistance
Quality of life · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] B‐mode ultrasound vs near‐infrared laser guidance
Pseudoaneurysm · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] B‐mode ultrasound vs near‐infrared laser guidance
Major haematoma · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] B‐mode ultrasound vs near‐infrared laser guidance
Adverse events (pain) · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] B‐mode ultrasound vs near‐infrared laser guidance
Quality of life · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] B‐mode ultrasound vs modified B‐mode ultrasound
Pseudoaneurysm · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] B‐mode ultrasound vs modified B‐mode ultrasound
Adverse events (pain) · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] B‐mode ultrasound vs modified B‐mode ultrasound
Quality of life · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] In‐plane B‐mode ultrasound vs out‐of‐plane B‐mode ultrasound
Pseudoaneurysm · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] In‐plane B‐mode ultrasound vs out‐of‐plane B‐mode ultrasound
Adverse events (pain) · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] In‐plane B‐mode ultrasound vs out‐of‐plane B‐mode ultrasound
Quality of life · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] Doppler assistance vs palpation and landmarks
Pseudoaneurysm · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] Doppler assistance vs palpation and landmarks
Major haematoma · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] Doppler assistance vs palpation and landmarks
Adverse events (pain) · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] Doppler assistance vs palpation and landmarks
Quality of life · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] Dynamic out‐of‐plane B‐mode ultrasound vs static out‐of‐plane B‐mode ultrasound
Pseudoaneurysm · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Axillary] B‐mode ultrasound guidance vs palpation and landmarks
Adverse events (pain) · adults requiring axillary artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] Dynamic out‐of‐plane B‐mode ultrasound vs static out‐of‐plane B‐mode ultrasound
Major haematoma · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] Dynamic out‐of‐plane B‐mode ultrasound vs static out‐of‐plane B‐mode ultrasound
Adverse events (pain) · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] Dynamic out‐of‐plane B‐mode ultrasound vs static out‐of‐plane B‐mode ultrasound
Quality of life · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] Oblique‐axis in‐plane B‐mode ultrasound vs long‐axis in‐plane B‐mode ultrasound
Pseudoaneurysm · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] Oblique‐axis in‐plane B‐mode ultrasound vs long‐axis in‐plane B‐mode ultrasound
Adverse events (pain) · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Axillary] B‐mode ultrasound guidance vs palpation and landmarks
Quality of life · adults requiring axillary artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies
[Radial] Oblique‐axis in‐plane B‐mode ultrasound vs long‐axis in‐plane B‐mode ultrasound
Quality of life · adults requiring radial artery catheterisation
Ultrasound guidance for arterial (other than femoral) catheterisation in adults (2021) · Cochrane
no estimate extractedNRNo studies