Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

594 questions · 624 findings · 70 reviews

No studies found 151 · 24.2%GRADE not reported 53 · 8.5%Very low 174 · 27.9%Low 129 · 20.7%Moderate 82 · 13.1%High 35 · 5.6%

Prophylactic intravenous antibiotics administered before cesarean incision vs after neonatal umbilical cord clamping

Admission to neonatal intensive care unit · women undergoing caesarean section

Prophylactic intravenous antibiotics administered before cesarean… showed no clear difference in neonatal ICU admission compared with after neonatal umbilical cord clamping (high certainty).

1 finding from 1 review

Systemic antibiotics without surgical intervention (with or without analgesics) vs Matched placebo without surgical intervention (with or without analgesics)

Outcome not reported · Adults with symptomatic apical periodontitis or acute apical abscess

The review found no eligible studies for this question.

1 finding from 1 review

Antibiotics vs placebo or no intervention

All‐cause mortality · farmworkers, soldiers, and people in endemic areas

Summary of findings table ‐ Antibiotics showed no clear difference in all‐cause mortality compared with placebo or no intervention (low certainty).

1 finding from 1 review

Antibiotics vs placebo or no intervention

Laboratory‐confirmed leptospirosis · farmworkers, soldiers, and people in endemic areas

It is very uncertain whether summary of findings table ‐ Antibiotics changes laboratory‐confirmed leptospirosis compared with placebo or no intervention (very low certainty).

1 finding from 1 review

Antibiotics vs placebo or no intervention

Clinical diagnosis of infection regardless of laboratory confirmed · farmworkers, soldiers, and people in endemic areas

Summary of findings table ‐ Antibiotics showed no clear difference in clinical diagnosis of infection regardless of laboratory confirmed compared with placebo or no intervention (low certainty).

1 finding from 1 review

Antibiotics vs placebo or no intervention

Clinical diagnosis confirmed by laboratory diagnosis · farmworkers, soldiers, and people in endemic areas

Summary of findings table ‐ Antibiotics showed no clear difference in clinical diagnosis confirmed by laboratory diagnosis compared with placebo or no intervention (low certainty).

1 finding from 1 review

Antibiotics vs placebo or no intervention

Non‐serious adverse events · farmworkers, soldiers, and people in endemic areas

It is very uncertain whether summary of findings table ‐ Antibiotics changes non‐serious adverse events compared with placebo or no intervention (very low certainty).

1 finding from 1 review

Single preoperative dose of systemic antibiotics (clindamycin 600 mg), total chemo-mechanical debridement and root filling vs Matched placebo, total chemo-mechanical debridement and root filling

Swelling (mean) · Adults with symptomatic apical periodontitis (no signs of spreading infection or systemic involvement)

The review found no eligible studies for this question.

3 findings from 1 review

Single preoperative dose of systemic antibiotics (clindamycin 600 mg), total chemo-mechanical debridement and root filling vs Matched placebo, total chemo-mechanical debridement and root filling

Pain at 24 hours · Adults with symptomatic apical periodontitis (no signs of spreading infection or systemic involvement)
1 finding from 1 review

Single preoperative dose of systemic antibiotics (clindamycin 600 mg), total chemo-mechanical debridement and root filling vs Matched placebo, total chemo-mechanical debridement and root filling

Pain at 48 hours · Adults with symptomatic apical periodontitis (no signs of spreading infection or systemic involvement)
1 finding from 1 review

Single preoperative dose of systemic antibiotics (clindamycin 600 mg), total chemo-mechanical debridement and root filling vs Matched placebo, total chemo-mechanical debridement and root filling

Analgesic (painkiller) use · Adults with symptomatic apical periodontitis (no signs of spreading infection or systemic involvement)

Single preoperative dose of systemic antibiotics (clindamycin 600… showed no clear difference in analgesic use compared with matched placebo, total chemo-mechanical debridement and root filling; GRADE not reported.

1 finding from 1 review

Single preoperative dose of systemic antibiotics (clindamycin 600 mg), total chemo-mechanical debridement and root filling vs Matched placebo, total chemo-mechanical debridement and root filling

Pain at 72 hours · Adults with symptomatic apical periodontitis (no signs of spreading infection or systemic involvement)
1 finding from 1 review

Single preoperative dose of systemic antibiotics (clindamycin 600 mg), total chemo-mechanical debridement and root filling vs Matched placebo, total chemo-mechanical debridement and root filling

Adverse effects · Adults with symptomatic apical periodontitis (no signs of spreading infection or systemic involvement)
1 finding from 1 review

Single preoperative dose of systemic antibiotics (clindamycin 600 mg), total chemo-mechanical debridement and root filling vs Matched placebo, total chemo-mechanical debridement and root filling

Pain at 7 days · Adults with symptomatic apical periodontitis (no signs of spreading infection or systemic involvement)
1 finding from 1 review

Postoperative systemic antibiotics (phenoxymethylpenicillin/penicillin VK, 7-day course), partial or total chemo-mechanical debridement and analgesics vs Matched placebo, partial or total chemo-mechanical debridement and analgesics

Number of ibuprofen tablets required · Adults with a symptomatic necrotic tooth or localised acute apical abscess (no signs of spreading infection or systemic involvement)

Postoperative systemic antibiotics… showed no clear difference in number of ibuprofen tablets required compared with matched placebo, partial or total chemo-mechanical debridement and…; GRADE not reported.

1 finding from 1 review

Postoperative systemic antibiotics (phenoxymethylpenicillin/penicillin VK, 7-day course), partial or total chemo-mechanical debridement and analgesics vs Matched placebo, partial or total chemo-mechanical debridement and analgesics

Percussion pain at 24 hours · Adults with a symptomatic necrotic tooth or localised acute apical abscess (no signs of spreading infection or systemic involvement)

Postoperative systemic antibiotics… showed no clear difference in percussion pain at 24 hours compared with matched placebo, partial or total chemo-mechanical debridement and…; GRADE not reported.

2 findings from 1 review

Postoperative systemic antibiotics (phenoxymethylpenicillin/penicillin VK, 7-day course), partial or total chemo-mechanical debridement and analgesics vs Matched placebo, partial or total chemo-mechanical debridement and analgesics

Pain at 24 hours · Adults with a symptomatic necrotic tooth or localised acute apical abscess (no signs of spreading infection or systemic involvement)

It is very uncertain whether postoperative systemic antibiotics… changes pain at 24 hours compared with matched placebo, partial or total chemo-mechanical debridement and… (very low certainty).

1 finding from 1 review

Postoperative systemic antibiotics (phenoxymethylpenicillin/penicillin VK, 7-day course), partial or total chemo-mechanical debridement and analgesics vs Matched placebo, partial or total chemo-mechanical debridement and analgesics

Swelling (mean) · Adults with a symptomatic necrotic tooth or localised acute apical abscess (no signs of spreading infection or systemic involvement)

Postoperative systemic antibiotics… showed no clear difference in swelling at 48 hours compared with matched placebo, partial or total chemo-mechanical debridement and…; GRADE not reported.

4 findings from 1 review
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