Department of Surgery, University of Michigan, 2926 Taubman Center, 1500 E Medical Center Drive, SPC 5343, Ann Arbor, MI, 48109-5343, USA.
Center for Healthcare Outcomes and Policy, University of Michigan, 2926 Taubman Center, 1500 E Medical Center Drive, SPC 5343, Ann Arbor, MI, 48109-5343, USA.
Obes Surg. 2021 Jul;31(7):3210-3217. doi: 10.1007/s11695-021-05397-8. Epub 2021 Apr 6.
Individual weight loss outcomes after bariatric surgery can vary considerably. As a result, identifying and assisting patients who are not on track to reach their weight loss goals can be challenging.
Using a bariatric surgery outcomes calculator, which was formulated using a state-wide bariatric-specific data registry, predicted weight loss at 1 year after surgery was calculated on 658 patients who underwent bariatric surgery at 35 different bariatric surgery programs between 2015 and 2017. Patient characteristics, postoperative complications, and weight loss trajectories were compared between patients who met or exceeded their predicted weight loss calculation to those who did not based on observed to expected weight loss ratio (O:E) at 1 year after surgery.
Patients who did not meet their predicted weight loss at 1 year (n = 237, 36%) had a mean O:E of 0.71, while patients who met or exceeded their prediction (n = 421, 63%) had a mean O:E = 1.14. At 6 months, there was a significant difference in the percent of the total amount of predicted weight loss between the groups (88% of total predicted weight loss for those that met their 1-year prediction vs 66% for those who did not, p < 0.0001). Age, gender, procedure type, and risk-adjusted complication rates were similar between groups.
Using a bariatric outcomes calculator can help set appropriate weight-loss expectations after surgery and also identify patients who may benefit from additional therapy prior to reaching their weight loss nadir.
减重手术后个体的减肥效果可能存在较大差异。因此，确定和帮助那些未达到减肥目标的患者可能具有挑战性。
使用一种减重手术结果计算器，该计算器是使用全州范围的减重特定数据注册表制定的，对 2015 年至 2017 年间在 35 个不同减重手术项目中接受减重手术的 658 名患者进行了术后 1 年的预测体重减轻计算。根据术后 1 年的观察到的与预期的体重减轻比值（O:E），比较了达到或超过预测体重减轻的患者与未达到的患者之间的患者特征、术后并发症和体重减轻轨迹。
在术后 1 年未达到预测体重减轻的患者（n=237，36%）的 O:E 平均值为 0.71，而达到或超过预测体重减轻的患者（n=421，63%）的 O:E 平均值为 1.14。在术后 6 个月，两组之间达到总预测体重减轻百分比存在显著差异（达到 1 年预测体重减轻的患者中，有 88%达到了总预测体重减轻，而未达到的患者中，有 66%达到了总预测体重减轻，p<0.0001）。两组之间的年龄、性别、手术类型和风险调整后的并发症发生率相似。
使用减重结果计算器可以帮助在手术后设定适当的减肥预期，还可以识别可能在达到减肥最低点之前受益于额外治疗的患者。
