Objective: To examine the preliminary clinical efficacy of Chinese magnetic sphincter augmentation (MSA) in the treatment of gastroesophageal reflux disease (GERD). Methods: According to the enrollment criteria for the MSA developed by ShengJieKang Co. and Shanghai Chest Hospital (SS-MSA) clinical trial, a total of 19 GERD patients were treated with SS-MSA from August 2018 to January 2020 at Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University. The majority of registered cases were male patients with age of (32.2±7.3) years (range: 22 to 50 years), height of (170.7±6.2) cm (range: 160 to 179 cm) and weight of (65.2±10.3) kg (range: 47.5 to 90.0 kg). SS-MSA was implanted via laparoscopy. The major evaluation indexs of postoperative efficacy were the total time of acid exposure within 24 hours and the total number of reflux. Secondary efficacy indicators included: (1) evaluation of the average daily dose of proton pump inhibitor medications; (2) the score of GERD health related quality of life questionnaire (GERD-Q) before and after MSA implantation. Paired design t-test was used to evaluate the efficacy of the SS-MSA. Results: A total of 19 patients underwent SS-MSA surgery successfully. The history of the GERD were 19 (54) months (M(Q(R))). The operation time was 63 (22) minutes and the in-hospital stay was 3 (2) days. No obvious surgical complications occurred. Postoperative adverse events included 14 cases with mild to moderate dysphagia exited after surgery, gradually eased within 1 to 3 months, 1 case with the removal of the device after 1 month of severe swallowing difficulties, 1 case of diarrhea. No corrosion, perforation, displacement occurred. The GERD-Q score (11.0(4.5) vs. 6(1.0), t=4.274, P=0.013), 24-hour acid exposure time (6.2(4.8)% vs. 0.1(0.9)%, t=5.814, P=0.004), and Demeester score (23.72(16.20) vs. 0.96(3.10), t=6.678, P=0.003) were significantly decreased 1 year after surgery(n=5). Proton pump inhibitor reuse rates were 6/18, 5/15, 3/10, and 1/5 in 1, 3, 6 and 12 months after the operation, respectively. Conclusions: SS-MSA implantation is feasible and safe with short hospital stay and rare perioperative complications. The preliminary results is good after 1 year follow-up. It could be expected to be an ideal substitutive for future GERD treatment.
目的： 探讨国产磁性括约肌增强器治疗胃食管反流病（GERD）的初步临床效果。 方法： 按照上海市胸科医院-胜杰康公司磁性括约肌增强器（SS-MSA）临床试验的纳入排除标准，于2018年8月至2019年12月前瞻性入组上海交通大学附属胸科医院胸外科19例GERD患者，在腹腔镜下完成SS-MSA植入术。男性14例，女性5例；年龄（32.2±7.3）岁（范围：22~50岁），身高（170.7±6.2）cm（范围：160~179 cm），体重（65.2±10.3）kg（范围：47.5~90.0 kg）。术后主要疗效评价指标为24 h酸暴露总时间和反流总次数；次要疗效指标为受试者每天服用质子泵抑制剂的平均剂量，以及手术前后GERD-健康相关生活质量表（GERD-Q）的各项评分。患者接受外科治疗前后的各项指标比较采用配对样本t检验。 结果： 患者GERD病史时间为19（54）个月[M（Q(R)）]。手术时间为63（22）min，住院时间为3（2）d。未发生明显手术并发症。术后发生轻-中度吞咽困难14例，1~3个月逐步缓解；腹泻1例。1例患者术后1个月因严重吞咽困难接受磁环取出术，无腐蚀、穿孔、移位等。5例患者术后1年GERD-Q评分[11.0（4.5）分比6（1.0）分，t=4.274，P=0.013]、24 h酸暴露总时间[6.2（4.8）%比0.1（0.9）%，t=5.814，P=0.004]、DeMeester评分[23.72（16.20）分比0.96（3.10）分，t=6.678，P=0.003]均较术前明显下降。质子泵抑制剂复用率术后1、3、6、12个月时分别为6/18、5/15、3/10、1/5。 结论： SS-MSA植入术安全简单，住院时间短，围手术期并发症较少，1年随访结果满意，可以作为治疗GERD的方法之一。.
Keywords: Esophageal sphincter, lower; Gastroesophageal reflux; Magnetic sphincter augmentation; Thoracic surgical procedures.