Evaluation of Micronutrient Status Post Laparoscopic Sleeve Gastrectomy: an Australian Perspective

Dong, Lillian; Suh, Hyerim; Karantanis, William; Jia, Si Si; Yang, Yive; Loi, Ken

doi:10.1007/s11695-020-05089-9

Cited by 6 publications

(14 citation statements)

References 22 publications

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“…The study characteristics are presented in Table 1. Two included studies 34,45 were RCTs, 10 were prospective cohort studies, 21,24,27–29,31,35,36,40,49 and 19 were retrospective cohort studies 12,13,22,23,26,30,32,33,37–39,41–44,46–48 . Twenty‐eight studies 12,13,21–37,40–48 were single‐center studies, while three studies 38,39,49 were multicenter studies.…”

Section: Resultsmentioning

confidence: 99%

“…The baseline levels of serum iron, ferritin, folate, and VB12 are shown in Table 2, and their reference range is shown in Table S3. Twentyone studies 24,25,[29][30][31][32][33]35,[37][38][39][40][41][42][43][44][45][46][47][48][49] recommended prophylactic iron supplementations, 22 studies 21,[23][24][25][29][30][31][32][33]35,37,[39][40][41][42][43][44][45][46][47][48][49] recommended prophylactic folate supplementations, and 22 studies 21,[23][24][25][29]…”

Section: Nutrient Data and Supplementation Strategymentioning

confidence: 99%

“…Twenty-seven studies 12,13,21,[23][24][25][27][28][29][30][31][32][33][34][35][36][37][40][41][42][43][44][45][46][47][48][49] involving 7488 patients reported the prevalence of anemia after SG (Figure 2). The overall estimate of the prevalence was 7% (95% CI [4,10], I 2 = 97%) at baseline.…”

Section: Prevalence Of Anemiamentioning

confidence: 99%

“…12 months [9% (95% CI [7,11], I 2 = 82%) versus 16% (95% CI [11,22], I 2 = 86%) p < 0.01], and 48 months [7% (95% CI [2,15], [19,53], I 2 = 90%) p < 0.01]. In addition, studies with an average participant age >40 years had a lower prevalence in the long term, especially from 36 months [14% (95% CI [6,24], I 2 = 86%) versus 40% (95% CI [22,60], I 2 = 95%) p < 0.01], 48 months [16% (95% CI [4,33], I 2 = 93%) versus 41 (95% CI [32,50], I 2 = 0%) p < 0.01], and 60 months [9% (95% CI [4,16], I 2 = 64%) versus 38% (95% CI [30,46], I 2 = 0%) p < 0.01]. Furthermore, studies that recommended sufficient prophylactic iron supplements had significantly lower prevalence of anemia at 24 months [6% (95% CI [4,8], I 2 = 0%) versus 15% (95% CI [8,24], I 2 = 95%) p < 0.01].…”

Section: Subgroup Analysismentioning

confidence: 99%

“…Two included studies 34,45 were RCTs, 10 were prospective cohort studies, 21,24,27-29, 31,35,36,40,49 and 19 were retrospective cohort studies. 12,13,22,23,26,30,32,33,[37][38][39][41][42][43][44][46][47][48] Twenty-eight studies 12,13,[21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][40][41][42][43][44][45][46][47][48] were single-center studies, while three studies 38,39,…”

Section: Study Characteristicsmentioning

confidence: 99%

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Prevalence of anemia and related nutrient deficiencies after sleeve gastrectomy: A systematic review and meta‐analysis

et al. 2022

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Summary This study aimed to investigate the prevalence of anemia and related nutrient deficiencies after sleeve gastrectomy (SG). Four online databases were searched for relevant articles. Thirty‐one studies with 7639 patients were included in the meta‐analysis. The pooled anemia prevalence was 7%, 6%, 9%, 10%, 12%, 25%, 20%, and 18% at baseline, 3 months, 6 months, 12 months, 24 months, 36 months, 48 months, and 60 months, respectively. Although the prevalence of vitamin B12 and folate deficiencies remained low postoperatively, the prevalence of ferritin deficiency steadily increased from 6% at baseline to 27% at 60 months. The prevalence of serum iron deficiency decreased from 13% at baseline to 6% at 24 months and increased to 20% at 60 months. Anemia and ferritin deficiency were strongly correlated (Pearson correlation coefficient = 0.774, p = 0.041). Subgroup analysis suggested that age ≤40 years, preoperative anemia, and insufficient iron supplementations were high‐risk factors for postoperative anemia. SG is associated with an increased risk of anemia and decreased iron storage over long‐term observation. Routine iron supplementations may reduce anemia after SG; however, the dosages recommended by current guidelines may be insufficient. More strict monitoring schedules and supplementation strategies should be established for the timely detection and management of postoperative anemia.

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