Abstract：
OBJECTIVE: The use of a nonadjustable silicone band around the gastric pouch of Roux-en-Y gastric bypass (RYGB) to reduce the recurrence of obesity is still being debated in the literature. The primary objective of this study was to evaluate banded and non-banded RYGB regarding % total weight loss (%TWL) and complications up to 10 years postoperatively and regarding the removal rate of the silicone band.
METHODS: A retrospective study of the medical records of all patients submitted to banded and non-banded RYGB between 2000 and 2020 was conducted. Clinical data (age, gender, weight, body mass index-BMI, comorbidities, %TWL, and the prevalence of vomiting) and laboratory data (hemoglobin, serum iron, albumin, and vitamin B12) were obtained preoperatively and at 6 months, 1, 2, 3, 5, 7, and 10 years for both groups and at 12, 15, and 20 years after banded RYGB.
RESULTS: In total, 858 patients underwent RYGB: 409 underwent banded RYGB and 449 underwent non-banded RYGB. In the preoperative period, banded RYGB patients were heavier and had higher rates of hypertension and dyslipidemia. The %TWL was higher in the banded RYGB group up to 7 years. The prevalence of vomiting is much higher in this group, which also had lower laboratory test values. Of the banded RYGB patients, 9.53% had to have the silicone ring removed after presenting complications.
CONCLUSIONS: Banded RYGB promotes significantly higher rates of TWL at the expense of a higher frequency of food intolerance and vomiting.
METHODS: A retrospective study of the medical records of all patients submitted to banded and non-banded RYGB between 2000 and 2020 was conducted. Clinical data (age, gender, weight, body mass index-BMI, comorbidities, %TWL, and the prevalence of vomiting) and laboratory data (hemoglobin, serum iron, albumin, and vitamin B12) were obtained preoperatively and at 6 months, 1, 2, 3, 5, 7, and 10 years for both groups and at 12, 15, and 20 years after banded RYGB.
RESULTS: In total, 858 patients underwent RYGB: 409 underwent banded RYGB and 449 underwent non-banded RYGB. In the preoperative period, banded RYGB patients were heavier and had higher rates of hypertension and dyslipidemia. The %TWL was higher in the banded RYGB group up to 7 years. The prevalence of vomiting is much higher in this group, which also had lower laboratory test values. Of the banded RYGB patients, 9.53% had to have the silicone ring removed after presenting complications.
CONCLUSIONS: Banded RYGB promotes significantly higher rates of TWL at the expense of a higher frequency of food intolerance and vomiting.
摘要：
目的：在Roux-en-Y胃旁路术（RYGB）的胃袋周围使用不可调节的硅胶带减少肥胖的复发在文献中仍存在争议。这项研究的主要目的是评估带状和非带状RYGB的总重量损失百分比（％TWL）和术后10年的并发症以及硅胶带的去除率。
方法：对2000年至2020年间提交给带状和非带状RYGB的所有患者的病历进行了回顾性研究。临床数据（年龄，性别,体重,体重指数-BMI，合并症,%TWL,以及呕吐的患病率)和实验室数据(血红蛋白，血清铁,白蛋白,和维生素B12）在术前和6个月时获得，两组均为1、2、3、5、7和10年，并且在带状RYGB后12、15和20年。
结果：总计，858例患者接受了RYGB：409例接受了带状RYGB，449例接受了非带状RYGB。在术前期间，带状RYGB患者体重较重，高血压和血脂异常的发生率较高。在长达7年的带状RYGB组中，TWL的百分比更高。这一组的呕吐患病率要高得多,也有较低的实验室测试值。在带状的RYGB患者中，出现并发症后，9.53％的人必须去除硅胶环。
结论：带状RYGB显著提高了TWL的发生率，但以更高的食物不耐受和呕吐为代价。
方法：对2000年至2020年间提交给带状和非带状RYGB的所有患者的病历进行了回顾性研究。临床数据（年龄，性别,体重,体重指数-BMI，合并症,%TWL,以及呕吐的患病率)和实验室数据(血红蛋白，血清铁,白蛋白,和维生素B12）在术前和6个月时获得，两组均为1、2、3、5、7和10年，并且在带状RYGB后12、15和20年。
结果：总计，858例患者接受了RYGB：409例接受了带状RYGB，449例接受了非带状RYGB。在术前期间，带状RYGB患者体重较重，高血压和血脂异常的发生率较高。在长达7年的带状RYGB组中，TWL的百分比更高。这一组的呕吐患病率要高得多,也有较低的实验室测试值。在带状的RYGB患者中，出现并发症后，9.53％的人必须去除硅胶环。
结论：带状RYGB显著提高了TWL的发生率，但以更高的食物不耐受和呕吐为代价。
