Cochrane · systematic review · CD010127

Perioperative nutrition for the treatment of bladder cancer by radical cystectomy

Burden, S, Billson, HA, Lal, S, et al. · Cochrane Database of Systematic Reviews · 2019 · Cochrane Library

UrologyAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
21
current version
GRADE rated
18
No studies
3
Included studies
NR
No studies 3 · 14.3%Ungraded 0 · 0%Very low 8 · 38.1%Low 10 · 47.6%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Postoperative parenteral nutrition compared to oral nutrition alone for the treatment of bladder cancer by radical cystectomy

3 questions
OutcomeEffectEvidenceStatus / GRADE
Complications
Postoperative parenteral nutrition vs oral nutrition alone
RR 1.4 [1.07, 1.82]1 study · 157 participantsLow
Downgraded: risk of bias, imprecision
Length of hospital stay
Postoperative parenteral nutrition vs oral nutrition alone
no estimate extracted1 study · 157 participantsLow
Downgraded: risk of bias, imprecision
Mortality
Postoperative parenteral nutrition vs oral nutrition alone
RR 1.12 [0.07, 17.62]1 study · 157 participantsVery low
Downgraded: risk of bias, imprecision

Immunonutrition compared to standard nutritional supplements for the treatment of bladder cancer by radical cystectomy

3 questions
OutcomeEffectEvidenceStatus / GRADE
Complications
Immunonutrition vs standard nutritional supplements
RR 0.31 [0.08, 1.23]1 study · 29 participantsLow
Downgraded: imprecision
Length of hospital stay
Immunonutrition vs standard nutritional supplements
no estimate extracted1 study · 29 participantsLow
Downgraded: imprecision
Mortality
Immunonutrition vs standard nutritional supplements
no estimate extracted1 study · 29 participantsLow
Downgraded: imprecision

Preoperative oral nutritional support compared to normal diet for the treatment of bladder cancer by radical cystectomy

3 questions
OutcomeEffectEvidenceStatus / GRADE
Complications
Preoperative oral nutritional support vs normal diet
RR 0.89 [0.18, 4.51]1 study · 28 participantsVery low
Downgraded: risk of bias, imprecision
Length of hospital stay – not measured
Preoperative oral nutritional support vs normal diet
no estimate extractedNRNo studies
Mortality
Preoperative oral nutritional support vs normal diet
no estimate extracted1 study · 28 participantsVery low
Downgraded: risk of bias, imprecision

Early postoperative feeding compared to standard management for the treatment of bladder cancer by radical cystectomy

3 questions
OutcomeEffectEvidenceStatus / GRADE
Complications
Early postoperative feeding vs standard management
RR 1.14 [0.85, 1.53]1 study · 102 participantsVery low
Downgraded: risk of bias, imprecision
Length of hospital stay
Early postoperative feeding vs standard management
no estimate extracted1 study · 102 participantsLow
Downgraded: risk of bias, imprecision
Mortality
Early postoperative feeding vs standard management
RR 0.52 [0.1, 2.71]1 study · 102 participantsLow
Downgraded: risk of bias, imprecision

Amino acid solution, alone or in combination with dextrose compared to dextrose solution for the treatment of bladder cancer by radical cystectomy

3 questions
OutcomeEffectEvidenceStatus / GRADE
Complications
Amino acid solution, alone or in combination with dextrose vs dextrose solution
RR 0.77 [0.32, 1.82]2 studies · 104 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Length of hospital stay
Amino acid solution, alone or in combination with dextrose vs dextrose solution
no estimate extracted1 study · 44 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Mortality
Amino acid solution, alone or in combination with dextrose vs dextrose solution
no estimate extracted1 study · 60 participantsVery low
Downgraded: risk of bias, imprecision, indirectness

Branch chain amino acids compared to dextrose for the treatment of bladder cancer by radical cystectomy

3 questions
OutcomeEffectEvidenceStatus / GRADE
Complications
Branch chain amino acids vs dextrose
no estimate extracted1 study · 19 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
Length of hospital stay – not assessed
Branch chain amino acids vs dextrose
no estimate extractedNRNo studies
Mortality – not assessed
Branch chain amino acids vs dextrose
no estimate extractedNRNo studies

Oral nutritional supplements compared to multivitamin and mineral supplement for treatment of bladder cancer by radical cystectomy

Population: treatment of bladder cancer by radical cystectomy
3 questions
OutcomeEffectEvidenceStatus / GRADE
Complications
Oral nutritional supplements vs multivitamin and mineral supplement
RR 0.73 [0.47, 1.13]1 study · 61 participantsLow
Downgraded: risk of bias, imprecision
Length of hospital stay
Oral nutritional supplements vs multivitamin and mineral supplement
no estimate extracted1 study · 61 participantsLow
Downgraded: risk of bias, imprecision
Mortality
Oral nutritional supplements vs multivitamin and mineral supplement
RR 0.97 [0.06, 14.78]1 study · 61 participantsLow
Downgraded: risk of bias, imprecision