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To evaluate the safety, primary patency, and clinical outcomes of hepatic artery stent graft (SG) placement for vascular injuries.Patients treated with hepatic arterial SG placement for vascular injuries between September 2018 and September 2021 were reviewed. Data on demographic characteristics, indication, stent graft characteristics, antiplatelet/anticoagulant use, clinical success rate, complications, and type of follow-up imaging were collected. Follow-up images were reviewed by 2 independent reviewers to assess primary patency. A time-to-event analysis was performed. The median duration of stent graft patency was estimated using Kaplan-Meier curves. A Cox proportional hazard model was used to evaluate factors related to stent graft patency.Thirty-five patients were treated with hepatic arterial SG placement, 11 for postoperative bleeds and 24 for hepatic artery infusion pump catheter-related complications. Clinical success was achieved in 32 (91%) patients (95% CI, 77-98). The median primary patency was 87 days (95% CI, 73-293). Stent grafts of ≥6-mm diameter retained patency for a longer duration than that with stent grafts of smaller diameters (6 mm vs 5 mm; hazard ratio, 0.35; 95% CI, 0.14-0.88; P = .026; and 7+ mm vs 5 mm; hazard ratio, 0.27; 95% CI, 0.09-0.83; P = .023). Anticoagulation/antiplatelet regimen was not associated with increased stent graft patency duration (P.05). Only minor complications were reported in 2 (5.7%) patients.Stent grafts can be used safely and effectively to treat injuries of the hepatic artery. Stent graft diameters of ≥6 mm seem to provide more durable patency.

Traffic accidents negatively affect the lives of human beings. Accidents may result in deaths, severe injuries, and loss of income to the impacted families. Accident detection and prevention is a keystone in improving road safety. In this paper, a system for detecting vehicle collision and rollover is presented. The proposed system includes three key phases. Data acquisition where accelerometer and gyroscope, integrated into MPU-6050 motion sensor are used to acquire 3-axis acceleration forces and rotation angles respectively. The complementary filter is used to enable the use of the gyroscope data on the short term because it is very precise and not susceptible to external forces. On the long term, the accelerometer data is used because it does not drift. An algorithm for acquiring data using sensors, filtering and analyzing data, detecting collision and rollover is developed. Experiments are conducted to test the proposed system. Experiments show promising results.