Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

749 questions · 769 findings · 63 reviews · Headline outcomes only

No studies found 202 · 26.3%GRADE not reported 31 · 4%Very low 172 · 22.4%Low 211 · 27.4%Moderate 106 · 13.8%High 47 · 6.1%

Prophylactic levosimendan vs usual care

Mechanical circulatory support or cardiac transplantation · paediatric patients following heart surgery

Prophylactic levosimendan showed no clear difference in mechanical circulatory support or cardiac transplantation compared with standard treatment (low certainty).

1 finding from 1 review

Prophylactic corticosteroids vs placebo or no corticosteroids

Mortality within the longest · adults diagnosed with coronary artery disease or cardiac valve disease, and candidates for cardiac surgery with cardiopulmonary bypass

Prophylactic corticosteroids showed no clear difference in all‐cause mortality (during the index hospital admission, or within… compared with placebo or no corticosteroids (low certainty).

1 finding from 1 review

Prophylactic corticosteroids vs placebo or no corticosteroids

Cardiac complications (as defined by study authors, including cardiac compromise and fatal and non‐fatal myocardial infarction, defined as ECG changes, echocardiological changes, or disproportionate elevation of troponins, during the index hospita... · adults diagnosed with coronary artery disease or cardiac valve disease, and candidates for cardiac surgery with cardiopulmonary bypass

Prophylactic corticosteroids may leads to higher cardiac complications (as defined by study authors, including… compared with placebo or no corticosteroids (low certainty).

1 finding from 1 review

Prophylactic corticosteroids vs placebo or no corticosteroids

Pulmonary complications (as defined by study authors, including pneumonia, embolism, reduced pulmonary function, prolonged ventilation, and pleural effusion, during the index hospital admission) · adults diagnosed with coronary artery disease or cardiac valve disease, and candidates for cardiac surgery with cardiopulmonary bypass

Prophylactic corticosteroids may leads to lower pulmonary complications (as defined by study authors, including… compared with placebo or no corticosteroids (low certainty).

1 finding from 1 review

Prophylactic corticosteroids vs placebo or no corticosteroids

Infectious complications · adults diagnosed with coronary artery disease or cardiac valve disease, and candidates for cardiac surgery with cardiopulmonary bypass

Prophylactic corticosteroids may leads to lower infectious complications (as defined by study authors, including… compared with placebo or no corticosteroids (low certainty).

1 finding from 1 review

Prophylactic corticosteroids vs placebo or no corticosteroids

Gastrointestinal bleeding · adults diagnosed with coronary artery disease or cardiac valve disease, and candidates for cardiac surgery with cardiopulmonary bypass

Prophylactic corticosteroids showed no clear difference in gastrointestinal (GI) bleeding (as defined by study authors,… compared with placebo or no corticosteroids (low certainty).

1 finding from 1 review

Prophylactic corticosteroids vs placebo or no corticosteroids

Renal failure · adults diagnosed with coronary artery disease or cardiac valve disease, and candidates for cardiac surgery with cardiopulmonary bypass

Prophylactic corticosteroids showed no clear difference in renal failure (as defined by study authors, including dialysis,… compared with placebo or no corticosteroids (low certainty).

1 finding from 1 review

Prophylactic or very early CPAP vs supportive care

Bronchopulmonary dysplasia at 36 weeks defined as oxygen dependency at 36 weeks postmenstrual age · preterm infants

Prophylactic or very early CPAP showed no clear difference in bronchopulmonary dysplasia at 36 weeks defined as oxygen dependency… compared with supportive care (moderate certainty).

1 finding from 1 review

Prophylactic or very early CPAP vs supportive care

Death or oxygen requirement at 36 weeks' postmenstrual age · preterm infants

Prophylactic or very early CPAP showed no clear difference in combined outcome of death and bronchopulmonary dysplasia defined as… compared with supportive care (low certainty).

1 finding from 1 review