Systematic Reviews
Copyright ©The Author(s) 2023.
World J Gastrointest Surg. Nov 27, 2023; 15(11): 2596-2618
Published online Nov 27, 2023. doi: 10.4240/wjgs.v15.i11.2596
Figure 1
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Figure 1  Preferred reporting items of systematic reviews and meta-analyses flow diagram of study selection.
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Figure 2  Risk of bias assessment of included randomised control trials, using version 2 of the Cochrane risk-of-bias tool for randomized trials (RoB 2).
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Figure 3 Forest plot of meta-analysis on postoperative infection. BCAA: Branched chain amino acid; CI: Confidence interval.
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Figure 4 Forest plot of meta-analysis on all-cause postoperative ascites. BCAA: Branched chain amino acid; CI: Confidence interval.
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Figure 5 Forest plot of meta-analysis on all-cause mortality. BCAA: Branched chain amino acid; CI: Confidence interval.
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Figure 6 Forest plot of meta-analysis on length of hospital stay. BCAA: Branched chain amino acid; CI: Confidence interval.
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Figure 7 Forest plot of meta-analysis on recurrence. BCAA: Branched chain amino acid; CI: Confidence interval.
Figure 8
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Figure 8 Forest plot of meta-analysis on overall survival. BCAA: Branched chain amino acid; CI: Confidence interval.
Figure 9
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Figure 9 Forest plot of meta-analysis on change in serum albumin at 6 mo postoperatively. BCAA: Branched chain amino acid; CI: Confidence interval.
Figure 10
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Figure 10  Forest plot of meta-analysis on change in serum albumin at 12 mo postoperatively. BCAA: Branched chain amino acid; CI: Confidence interval.
Figure 11
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Figure 11  Forest plot of meta-analysis on postoperative body weight change for branched chain amino acid group relative to control. BCAA: Branched chain amino acid; CI: Confidence interval.
Figure 12
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Figure 12  Branched chain amino acid. A: Biochemical effect of Branched chain amino acid (BCAA) on skeletal muscles and the liver; B: Signalling pathways involving BCAA.