Journal of metabolic and bariatric surgery · 2024
Nutritional Deficiencies Before and After Metabolic and Bariatric Surgery in Patients Above 50.0 kg/m2: A Single Center Study.
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Pinho André Costa, Oliveira Ana Manuel, Silva Mariana Santos, Santos-Sousa Hugo, Resende Fernando, Preto John, Lima-da-Costa Eduardo, Integrated Responsibility Center for Obesity Group
Аннотация
PURPOSE: Metabolic and bariatric surgery (MBS) is an effective treatment for patients with body mass index (BMI) above 50.0 kg/m2 but nutritional deficiencies (ND) may arise. This study aimed to assess if patients with BMI above 50.0 kg/m2 have more ND and require more supplementation after MBS compared to patients in lower BMI groups.
MATERIALS AND METHODS: Retrospective single center study including all patients submitted to MBS from 2019-2020. Several parameters were collected. Statistical analysis was performed to compare ND between BMI groups (<40.0 kg/m2; 40.0 to 49.9 kg/m2; ≥50.0 kg/m2), and between surgeries (Roux-en-Y gastric bypass [RYGB] vs. sleeve gastrectomy [SG]) in the group with BMI ≥50.0 kg/m2.
RESULTS: We identified 951 patients, 85 (9.0%) with BMI ≥50.0 kg/m2, with RYGB performed in 644 (68.4%) patients. Pre-operatively, vitamin D deficiency was observed in 80.0% of patients with BMI ≥50.0 kg/m2, with significant differences between BMI groups. At follow-up there were no significant differences in ND according to BMI groups. In patients with BMI ≥50.0 kg/m2, vitamin B12 deficiency was more frequent after RYGB. At 2-year follow-up, 95.4% patients were taking multivitamin supplementation, and 52.4% required additional supplements, namely vitamin D.
CONCLUSION: ND are common in patients with BMI ≥50.0 kg/m2, even before MBS. After surgery, patients with BMI ≥50.0 kg/m2 may not have increased risk for ND, compared to other BMI groups. In these patients, RYGB resulted in an increased risk for vitamin B12 deficiency. Adequate supplementation and clinical follow-up are essential to mitigate these complications.
MATERIALS AND METHODS: Retrospective single center study including all patients submitted to MBS from 2019-2020. Several parameters were collected. Statistical analysis was performed to compare ND between BMI groups (<40.0 kg/m2; 40.0 to 49.9 kg/m2; ≥50.0 kg/m2), and between surgeries (Roux-en-Y gastric bypass [RYGB] vs. sleeve gastrectomy [SG]) in the group with BMI ≥50.0 kg/m2.
RESULTS: We identified 951 patients, 85 (9.0%) with BMI ≥50.0 kg/m2, with RYGB performed in 644 (68.4%) patients. Pre-operatively, vitamin D deficiency was observed in 80.0% of patients with BMI ≥50.0 kg/m2, with significant differences between BMI groups. At follow-up there were no significant differences in ND according to BMI groups. In patients with BMI ≥50.0 kg/m2, vitamin B12 deficiency was more frequent after RYGB. At 2-year follow-up, 95.4% patients were taking multivitamin supplementation, and 52.4% required additional supplements, namely vitamin D.
CONCLUSION: ND are common in patients with BMI ≥50.0 kg/m2, even before MBS. After surgery, patients with BMI ≥50.0 kg/m2 may not have increased risk for ND, compared to other BMI groups. In these patients, RYGB resulted in an increased risk for vitamin B12 deficiency. Adequate supplementation and clinical follow-up are essential to mitigate these complications.