Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

321 questions · 347 findings · 123 reviews

No studies found 67 · 19.3%GRADE not reported 64 · 18.4%Very low 87 · 25.1%Low 60 · 17.3%Moderate 51 · 14.7%High 18 · 5.2%

PRP (platelet-rich plasma) in cellulose foam placed in extraction socket vs placebo, no treatment or surveillance only

Adverse effects (wound pain) · Adults with head and neck cancer undergoing curative or adjuvant radiotherapy (at risk of osteoradionecrosis of the jaws)
1 finding from 1 review

Intervention not reported

Discontinuation of therapy due to adverse effects · patients in primary prevention of cardiovascular disease events

It is very uncertain whether the intervention changes discontinuation of therapy due to adverse effects (very low certainty).

1 finding from 1 review

Epinephrine vs epinephrine and any second endoscopic method

Adverse effects of endoscopy therapy Adverse effects · patients with high‐risk bleeding ulcers

Epinephrine probably leads to higher adverse effects of endoscopy therapy Adverse effects compared with epinephrine and any second endoscopic method (moderate certainty).

1 finding from 1 review

Intervention not reported

Adverse effects necessitating stop of therapy Patient reported

The intervention probably leads to higher adverse effects necessitating stop of therapy Patient reported (moderate certainty).

1 finding from 1 review

Prophylactic valaciclovir (lower dose) vs Prophylactic valaciclovir (higher dose)

Adverse effects · Patients being treated for cancer (acute leukaemia; chemotherapy or stem-cell transplantation)
1 finding from 1 review

Topical fluoride therapy (toothpaste, mouthrinse, gel or varnish; any fluoride agent/concentration; frequency at least once a year) vs placebo or no treatment

Adverse effects (tooth staining/discoloration, oral soft-tissue signs, adverse symptoms such as nausea/vomiting, enamel etching) · Children and adolescents aged 16 years or less
1 finding from 1 review

Etanercept vs no etanercept

Adverse effects leading to discontinuation of SJT/TEN therapy ‐ not reported · Stevens‐Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and SJS/TEN overlap syndrome

The review found no eligible studies for this question.

1 finding from 1 review