Smelt H J M, Pouwels S, Said M, Berghuis K A, Boer A K, Smulders J F
Department of Dietetics, Catharina Hospital, Michelangelolaan 2, P.O. Box 1350, 5602 ZA, Eindhoven, The Netherlands.
Department of Surgery, Catharina Hospital, Eindhoven, The Netherlands.
Obes Surg. 2016 Dec;26(12):2873-2879. doi: 10.1007/s11695-016-2207-z.
The incidence of vitamin B deficiency after bariatric surgery can range from 26 to 70 %. There is no consensus on optimal vitamin B supplementation in postbariatric patients. The objective of this study was to compare three different regimes.
In this retrospective matched cohort study, we included 63 patients with methylmalonic acid (MMA) levels ≥300 nmol/L. Group A (n = 21) received 6 intramuscular (im) vitamin B injections including a loading dose, group B (n = 21) received 3 im vitamin B injections without loading dose and group C (n = 21) received no im vitamin B injections.
The total post-bariatric patient population consisted of 14 males (22.2 %) and 49 women (77.8 %) with a mean current body mass index of 30.6 ± 8.0 kg/m. There was no significant difference in vitamin B and MMA levels between 3 groups at baseline. There was a significant difference in follow-up vitamin B levels of group A compared to group B (p = 0.02) and group A compared to group C (p = 0.03). In the follow-up results, there is also a significant decrease in MMA levels of group A compared to group B (p = 0.02), group A compared to group C (p < 0.001), and group B compared to group C (p < 0.01).
In this study, a shorter injection regime is probably not sufficient to treat a vitamin B deficiency. An injection regime with 6 injections recovered all vitamin B deficiencies biochemically. MMA levels cannot recover spontaneously over time without additional im injection regime.
减肥手术后维生素B缺乏的发生率在26%至70%之间。对于减肥术后患者最佳维生素B补充方案尚无共识。本研究的目的是比较三种不同方案。
在这项回顾性匹配队列研究中,我们纳入了63名甲基丙二酸(MMA)水平≥300 nmol/L的患者。A组(n = 21)接受6次肌肉注射维生素B,包括一次负荷剂量;B组(n = 21)接受3次肌肉注射维生素B,无负荷剂量;C组(n = 21)未接受肌肉注射维生素B。
减肥术后患者总体包括14名男性(22.2%)和49名女性(77.8%),当前平均体重指数为30.6±8.0 kg/m²。三组在基线时维生素B和MMA水平无显著差异。A组随访时的维生素B水平与B组相比有显著差异(p = 0.02),A组与C组相比有显著差异(p = 0.03)。在随访结果中,A组的MMA水平与B组相比也有显著下降(p = 0.02),A组与C组相比(p < 0.001),B组与C组相比(p < 0.01)。
在本研究中,较短的注射方案可能不足以治疗维生素B缺乏。6次注射的方案能在生化指标上纠正所有维生素B缺乏。若无额外的肌肉注射方案,MMA水平不会随时间自发恢复。