Findings

What do systematic reviews say?

5 questions · 5 findings · 1 reviews · Dental caries

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No studies found 0 · 0%GRADE not reported 2 · 40%Very low 1 · 20%Low 0 · 0%Moderate 2 · 40%High 0 · 0%

PET-CT following chemoradiotherapy (neck dissection only if no/incomplete response) vs Planned neck dissection before or after chemoradiotherapy

Recurrence · Adults with oral cavity or oropharyngeal cancer with nodal disease (stage N2 or N3)

1 finding from 1 review

Interventions for the treatment of oral cavity and oropharyngeal cancers: surgical treatment 2023 · Cochrane All outcomes
Recurrence: outcome not reported in a usable way (Mehanna 2017: nodal recurrence 3 vs 1; distant metastases 21 vs 23).
1 study
GRADE not reported

PET-CT following chemoradiotherapy (neck dissection only if no/incomplete response) vs Planned neck dissection before or after chemoradiotherapy

Total mortality · Adults with oral cavity or oropharyngeal cancer with nodal disease (stage N2 or N3)

PET-CT following chemoradiotherapy (neck dissection only if… showed no clear difference in total mortality compared with planned neck dissection before or after chemoradiotherapy (moderate certainty).

1 finding from 1 review

Interventions for the treatment of oral cavity and oropharyngeal cancers: surgical treatment 2023 · Cochrane All outcomes
3 years
HR 0.92 [0.65, 1.31]
1 study · 564 participants
Moderate

PET-CT following chemoradiotherapy (neck dissection only if no/incomplete response) vs Planned neck dissection before or after chemoradiotherapy

Locoregional recurrence · Adults with oral cavity or oropharyngeal cancer with nodal disease (stage N2 or N3)

PET-CT following chemoradiotherapy (neck dissection only if… showed no clear difference in locoregional recurrence compared with planned neck dissection before or after chemoradiotherapy (moderate certainty).

1 finding from 1 review

Interventions for the treatment of oral cavity and oropharyngeal cancers: surgical treatment 2023 · Cochrane All outcomes
3 years
HR 1.00 [0.94, 1.06]
1 study · 564 participants
Moderate

PET-CT following chemoradiotherapy (neck dissection only if no/incomplete response) vs Planned neck dissection before or after chemoradiotherapy

Adverse events associated with treatment · Adults with oral cavity or oropharyngeal cancer with nodal disease (stage N2 or N3)

1 finding from 1 review

Interventions for the treatment of oral cavity and oropharyngeal cancers: surgical treatment 2023 · Cochrane All outcomes
Adverse events: 22 surgical complications in the PET-CT group vs 83 in the planned-surgery group (Mehanna 2017).
1 study · 564 participants
Very low

PET-CT following chemoradiotherapy (neck dissection only if no/incomplete response) vs Planned neck dissection before or after chemoradiotherapy

Disease-free survival · Adults with oral cavity or oropharyngeal cancer with nodal disease (stage N2 or N3)

1 finding from 1 review

Interventions for the treatment of oral cavity and oropharyngeal cancers: surgical treatment 2023 · Cochrane All outcomes
Disease-free survival: outcome not reported in a usable way (Mehanna 2017: disease-specific and other-cause mortality did not differ, P=0.80 and 0.41).
1 study
GRADE not reported