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Year : 2020  |  Volume : 20  |  Issue : 1  |  Page : 35-41

Assessment of the carotid artery Doppler flow time in patients with acute upper gastrointestinal bleeding

1 Department of Emergency Medicine, Selahaddin Eyyubi State Hospital, Diyarbakir, Turkey
2 Department of Emergency Medicine, Kecioren Training and Research Hospital, Ankara, Turkey

Correspondence Address:
Dr. Emine Emektar
Department of Emergency Medicine, Kecioren Training and Research Hospital, Ankara
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2452-2473.276387

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INTRODUCTION: Because of the subjectivity and ambiguity of the noninvasive measurements and limited use of invasive ones, there is an impending need for a real-time, fast, inexpensive, and reproducible noninvasive measurement method in acute upper gastrointestinal (GI) bleeding with active bleeding in emergency services. AIMS: In this study, we aimed to evaluate the effect of bedside carotid artery flow time (CFT) measurement before and after the passive leg raising (PLR) maneuver on the determination of active bleeding in patients admitted to the emergency department (ED) with upper GI bleeding. MATERIALS AND METHODS: This prospective case–control study was conducted in the ED of a training and research hospital with upper GI bleeding. Patients were placed in the supine position to perform bedside carotid Doppler ultrasonography before starting treatment. CFT, corrected CFT (CFTc), and carotid artery Doppler flow velocity were measured. After then performed PLR, the same parameters were measured again. RESULTS: A total of 94 patients, including 50 patients with GI bleeding and 44 healthy volunteers as control group were included in the study. CFT and CFTc were shorter in the patient group than the control group (P < 0.001, P = 0.004, respectively). After PLR, there were statistically significant differences in change in the CFT (ΔCFT) and change in the corrected CFT (ΔCFTc) between the groups (P = 0.001, P < 0.001). There were also statistically significant differences in ΔCFT and ΔCFT between the patients with active bleeding and the nonbleeding ones (P = 0.01, P = 0.005, respectively). Area under curve to detect active bleeding for ΔCFT and ΔCFTc were calculated as 0.801 (95% confidence interval [CI]: 0.65–0.95) and 0.778 (95% CI: 0.63–0.91), respectively. CONCLUSION: The corrected carotid Doppler flow time measurements in patients with GI bleeding at the time of presenting to the emergency department can be helpful to interpret the active bleeding.

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