Imamura Kentaro, Machii Motoko, Yao Kenshi, Sou Suketo, Nagahama Takashi, Yao Tsuneyoshi, Kanemitsu Takao, Miyaoka Masaki, Ohtsu Kensei, Ueki Toshiharu
Department of Endoscopy, Fukuoka University Chikushi Hospital, Chikusino, Japan.
Department of Gastroenterology, Tobata Kyoritsu Hospital, Kitakyushu, Japan.
Endosc Int Open. 2021 Apr;9(4):E530-E536. doi: 10.1055/a-1352-2761. Epub 2021 Mar 17.
The optimal intragastric pressure (IP) for strong gastric wall extension is unclear. We aimed to develop an accurate method to measure IP using endoscopy and determine the pressure required for strong gastric wall extension. An in vitro experiment using an endoscope with a rubber attached at its tip was conducted. The process of inserting the pressure measurement probe into the forceps channel was skipped, and the tube of the pressure measurement device was directly connected to the forceps channel. In vivo, the pressure in 51 consecutive patients at the time of strong gastric wall extension was measured. Strong extension of the gastric wall was defined as when the folds in the greater curvature were flattened as a result of sufficient extension of the gastric wall by insufflated air during upper gastrointestinal endoscopy. The IP at that time was measured. In vitr , 20 mL of tap water was injected once into the forceps channel and then aspirated for 10 seconds. Pressure measurement after irrigation of the forceps channel as well as the measurement by inserting the probe procedure were accurately performed. In vivo, among the 51 included patients, the mean IP (range) was 14.7 mmHg (10-23). Strong extension of the gastric wall was obtained in 96.1 % of patients when the IP was 20 mmHg. We developed an accurate method to measure IP using upper gastrointestinal endoscopy. Strong extension of the gastric wall was obtained in almost all patients when the IP was 20 mmHg.
尚不清楚实现胃壁强力伸展的最佳胃内压（IP）。我们旨在开发一种使用内窥镜测量IP的准确方法，并确定胃壁强力伸展所需的压力。进行了一项体外实验，使用尖端附有橡胶的内窥镜。省略了将压力测量探头插入活检通道的过程，压力测量装置的管子直接连接到活检通道。在体内，测量了51例连续患者胃壁强力伸展时的压力。胃壁的强力伸展定义为在上消化道内窥镜检查期间，由于注入空气使胃壁充分伸展，导致大弯处的皱襞变平。测量此时的IP。在体外，将20毫升自来水一次性注入活检通道，然后抽吸10秒。准确进行了活检通道冲洗后的压力测量以及通过插入探头程序进行的测量。在体内，在纳入的51例患者中，平均IP（范围）为14.7 mmHg（10 - 23）。当IP为20 mmHg时，96.1%的患者实现了胃壁的强力伸展。我们开发了一种使用上消化道内窥镜测量IP的准确方法。当IP为20 mmHg时，几乎所有患者都实现了胃壁的强力伸展。
