OB klinika & 1st Faculty of Medicine, Charles University, Center for Treatment of Obesity and Metabolic Disorders, Pod Krejcarkem 975, 13000, Prague 3, Czech Republic.
Obes Surg. 2010 Aug;20(8):1102-9. doi: 10.1007/s11695-010-0182-3.
Intraband pressure (IBP) measurement may be a less invasive method to assess esophageal motility response to band adjustment and restrictive integrity of the device in Swedish adjustable gastric band (SAGB) patients. However, the relationship between IBP and esophageal function is not yet established. Our aim was to characterize in vivo IBP-peristalsis associations in SAGB patients. Ten patients in their second postoperative year were prospectively recruited. IBP was measured via percutaneous port, and concurrent esophageal manometry was performed using an 8-channel catheter. Contraction length and amplitude were measured with both methods. The IBP-peristalsis correlation was computed using the R-square of the regression analysis (R (2)) for band volumes ranging from 4 to 9 mL. One hundred ten swallows were studied. Excellent IBP-peristalsis correlation was observed in 6 of 10 patients (267 contractions): contraction length R (2) = 0.8537 and amplitude R (2) = 0.7365 (p-value of slope < 0.001). Mean contraction length was 17 +/- 7 (4-42) s for manometry and 18 +/- 7 (5-43) s for IBP. Mean amplitude was 55 +/- 55 (9-209) mm Hg for manometry and 67 +/- 47 (7-190) mm Hg for IBP. A weak IBP-peristalsis correlation was observed in the remaining four patients: two had impaired lower sphincter relaxation, one had band slippage, and one had disruption of the port needle connection. In vivo IBP measurement may be reliable in the assessment of esophageal peristalsis in response to band adjustments and the restrictive integrity of the device in patients with intact esophageal function. More studies are warranted to completely assess the potential for IBP to be indicative of the presence of band-related complications.
胃内压（IBP）测量可能是一种评估食管运动对带调整反应和瑞典可调节胃带（SAGB）患者装置限制完整性的侵袭性较小的方法。然而，IBP 与食管功能之间的关系尚未确定。我们的目的是描述 SAGB 患者体内 IBP 蠕动的相关性。10 名术后 2 年的患者前瞻性纳入研究。通过经皮端口测量 IBP，并使用 8 通道导管进行同步食管测压。两种方法均测量收缩长度和振幅。使用回归分析的 R 平方（R （2））计算 IBP 蠕动的相关性，范围为 4 至 9 毫升。研究了 110 次吞咽。在 10 名患者中的 6 名（267 次收缩）中观察到 IBP 与蠕动之间的良好相关性：收缩长度 R （2）= 0.8537，振幅 R （2）= 0.7365（斜率的 p 值<0.001）。测压法的平均收缩长度为 17 ± 7（4-42）s，IBP 为 18 ± 7（5-43）s。测压法的平均振幅为 55 ± 55（9-209）mmHg，IBP 为 67 ± 47（7-190）mmHg。其余 4 名患者的 IBP 与蠕动相关性较弱：2 名患者下食管括约肌松弛受损，1 名患者带滑脱，1 名患者端口针连接中断。体内 IBP 测量可能在评估食管蠕动对带调整的反应以及具有完整食管功能的患者装置的限制完整性方面是可靠的。需要进一步的研究来完全评估 IBP 作为带相关并发症存在的指示的潜力。
