Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,667 questions · 21,760 findings · 2,177 reviews

No studies found 4,173 · 19.2%GRADE not reported 2,300 · 10.6%Very low 5,276 · 24.2%Low 5,764 · 26.5%Moderate 3,298 · 15.2%High 949 · 4.4%

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Intranasal steroid spray vs placebo or no intervention

Change in sense of smell · people with olfactory dysfunction for less than 4 weeks following COVID‐19 infection
3 findings from 1 review

Dexrazoxane vs no cardioprotective intervention or placebo

Heart failure · adults with cancer receiving anthracyclines

Dexrazoxane probably leads to lower clinical heart failure Available case analysis compared with no cardioprotective intervention or placebo (moderate certainty).

1 finding from 1 review

Dexrazoxane vs no cardioprotective intervention

Clinical heart failure and subclinical myocardial dysfunction combined Defined as (1) evidence of clinical congestive heart failure, (2) a reduction in LVEF as measured by MUGA to < 45% or (3) a decrease in LVEF as measured by MUGA of > 20 percent... · children with cancer receiving anthracyclines

Dexrazoxane may leads to lower clinical heart failure and subclinical myocardial dysfunction… compared with no cardioprotective intervention (low certainty).

1 finding from 1 review

Dexrazoxane vs no cardioprotective intervention

Clinical heart failure and subclinical myocardial dysfunction combined Defined as clinical heart failure (no definition provided) or subclinical myocardial dysfunction defined as decreased LVFS; however, it was stated that toxicity was graded acco... · children with cancer receiving anthracyclines
1 finding from 1 review

Dexrazoxane vs no cardioprotective intervention

Has died · children with cancer receiving anthracyclines

Dexrazoxane showed no clear difference in overall mortality (Reported as number of participants who died) compared with no cardioprotective intervention (low certainty).

1 finding from 1 review

Dexrazoxane vs no cardioprotective intervention

Tumour response rate Defined as number of complete remissions (no definition of complete remission provided). Best‐case analysis · children with cancer receiving anthracyclines

It is very uncertain whether dexrazoxane changes tumour response rate Defined as number of complete remissions (no… compared with no cardioprotective intervention (very low certainty).

1 finding from 1 review

Dexrazoxane vs no cardioprotective intervention

Tumour response rate Defined as number of complete responses (i.e. disappearance of active Hodgkin lymphoma (gallium negative, ≥ 70% decrease in the sum of the products of the perpendicular diameters of measurable lesions, and negative bone marrow... · children with cancer receiving anthracyclines

Dexrazoxane showed no clear difference in tumour response rate Defined as number of complete responses (i.e.… compared with no cardioprotective intervention (low certainty).

1 finding from 1 review

Dexrazoxane vs no cardioprotective intervention or placebo

Clinical heart failure and subclinical myocardial dysfunction combined Comparable definitions; see Characteristics of included studies for exact definitions. Available‐case analysis · adults with cancer receiving anthracyclines

Dexrazoxane probably leads to lower clinical heart failure and subclinical myocardial dysfunction… compared with no cardioprotective intervention or placebo (moderate certainty).

2 findings from 1 review

Dexrazoxane vs no cardioprotective intervention

Secondary malignant neoplasms · children with cancer receiving anthracyclines

Dexrazoxane may leads to higher secondary malignant neoplasms Available‐case analysis compared with no cardioprotective intervention (low certainty).

1 finding from 1 review