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. 2024 Nov 26;2024(11):CD013707. doi: 10.1002/14651858.CD013707.pub2

Summary of findings 5. Length of hospital stay.

Estimate of effects, confidence intervals, and certainty of the evidence for length of hospital stay for paediatric patients undergoing surgery for congenital heart disease
Population: paediatric patients undergoing surgery for congenital heart disease
Interventions: levosimendan, milrinone, dobutamine, placebo
Comparator (reference): placebo
Outcome: length of hospital stay
Setting: inpatient
Figure 5
Total studies: 7
Total participants: 497
Relative effect (95% CI) Anticipated absolute effect (95% CI) No. of participants (studies) Certainty of the evidence Ranking (SUCRA) Comments
Without intervention With intervention Difference
Levosimendan ROM 1.03 (0.84 to 1.27)
Network estimate
20 daysa 21 days 1 day more (3 less to 5 more) 185
(5 RCTs)
Moderate
Due to imprecision
0.28 Levosimendan likely results in no difference in length of hospital stay, compared to placebo
Milrinone ROM 1 (0.78 to 1.30)
Network estimate
20 daysa 20 days Same number of days (4 less to 6 more) 222
(7 RCTs)
Moderate
Due to imprecision
0.41 Milrinone likely results in no difference in length of hospital stay, compared to placebo
Dobutamine ROM 0.68 (0.37 to 1.26)
Network estimate
20 daysa 14 days 6 days less (13 less to 5 more) 26
(1 RCT)
Moderate
Due to imprecision
0.91 Dobutamine likely reduces the length of hospital stay, compared to placebo
Placebo ROM 1 Not estimable Not estimable Not estimable 199
(3 RCTs)
Reference comparator 0.41
Heterogeneity: tau2 = 0.01; I2 = 31.2% (95% CI 0.0% to 73.6%)
Q total 5.81 (df = 4; P = 0.21)
Q within designs 5.46 (df = 3; P = 0.14)
Q between designs 0.36 (df = 1; P = 0.55)

*SUCRA: surface under the cumulative ranking curve, calculated with R package netmeta

GRADE Working Group grades of evidence (or certainty in the evidence)

High certainty: we are very confident that the true effect lies close to that of the estimate of the effect.

Moderate certainty: we are moderately confident in the effect estimate; the true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different.

Low certainty: our confidence in the effect estimate is limited; the true effect may be substantially different from the estimate of the effect.

Very low certainty: we have very little confidence in the effect estimate; the true effect is likely to be substantially different from the estimate of effect.

Explanatory footnotes

aBaseline risk (assumed control risk) obtained from Wang 2019, placebo group, median length of hospital stay.

Certainty of the evidence for each intervention was downgraded one step due to imprecision, resulting in 'Moderate'.

Abbreviation(s)CI: confidence interval; df: degrees of freedom; No.: number; RCT: randomised controlled trial; ROM: ratio of means; SUCRA: surface under the cumulative ranking curve.