Influence of High-Pressure Injection Pressure on Positive Detection of
Acute Upper Gastrointestinal Hemorrhage During Interventional Surgery
YAN Xiaolonga,b, ZHOU Xuana,b, JIAO Hea,b, HE Senb,c
a. Department of Radiology; b. Cardiac Catheterization Laboratory; c. Department of Cardiology, West China Hospital,
Sichuan University, Chengdu Sichuan 610000, China
Abstract：Objective To investigate the effect of increasing the high-pressure injection pressure of the microcatheter on the positive
detection rate of hemorrhage in angiography of acute upper gastrointestinal hemorrhage. Methods The data of 163 patients who
received emergency interventional treatment for acute gastrointestinal bleeding in our hospital from July 2014 to March 2021
were retrospectively analyzed. Combined with preoperative data, the results of routine celiac trunk, superior mesentery, inferior
mesenteric artery, internal iliac artery angiography were used to determine whether there were suspicious bleeding vessels. In 113
patients with suspicious bleeding vessels, microcatheter sonography was performed at the same flow rate and volume with a highpressure
injection. According to the conditions of the high-pressure injector, they were divided into two groups, 51 cases were
injected at 200 psi and 62 cases were injected at 400 psi. The positive rate of bleeding with different injection pressures was analyzed
retrospectively. Results Among 113 patients, 35 patients (68.62%) were positive for hemorrhage at 200 psi, and 56 patients (90.32%)
were positive for hemorrhage at 400 psi. The positive rate of 400 psi was higher than that of 200 psi. Furthermore, there was no
statistical difference between the two groups in terms of age, gender, weight, hypertension and hemoglobin (P>0.05). Conclusion In
the interventional operation of acute upper gastrointestinal bleeding, increasing the high-pressure injection pressure of microcatheter
angiography is helpful to the positive detection rate of hemorrhage.
鄢晓龙a,b，周轩a,b，焦河a,b，何森b,c. 介入术中高压注射器压力对急性上消化道出血阳性检出的影响[J]. 中国医疗设备, 2022, 37(4): 70-73.
YAN Xiaolonga,b, ZHOU Xuana,b, JIAO Hea,b, HE Senb,c. Influence of High-Pressure Injection Pressure on Positive Detection of
Acute Upper Gastrointestinal Hemorrhage During Interventional Surgery. China Medical Devices, 2022, 37(4): 70-73.
