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Congress: ECR25
Poster Number: C-16313
Type: Poster: EPOS Radiologist (scientific)
Authorblock: A. W. Wu, J. T. Cámara, L. Bueno Caravaca, A. Martínez De Mandojana, F. Ruiz Santiago, A. J. Lainez Ramos-Bossini; Granada/ES
Disclosures:
Angdy Wang Wu: Nothing to disclose
José Tortosa Cámara: Nothing to disclose
Lucía Bueno Caravaca: Nothing to disclose
Ana Martínez De Mandojana: Nothing to disclose
Fernando Ruiz Santiago: Nothing to disclose
Antonio Jesus Lainez Ramos-Bossini: Nothing to disclose
Keywords: Abdomen, Emergency, CT, CT-Angiography, Complications, Haemorrhage
Purpose Although several risk factors for lower gastrointestinal bleeding (LGIB) have been identified, few studies have analyzed predictive variables for the detection of active bleeding in computed tomography angiography (CTA). This information could avoid the risks associated with unnecessary CTA. The aim of this study was to identify and analyze the predictive capacity of several clinical and blood test variables for the detection of active bleeding in CTA performed in patients with LGIB. The secondary objective was to analyze the factors...
Read more Methods and materials Observational and retrospective case-control study based on a series of patients with LGIB who underwent CTA for suspected active bleeding in a tertiary hospital. Cases and controls were defined according to whether CTA was positive or negative for active bleeding, respectively. Several sociodemographic, clinical and blood test-related variables were collected. The analytical parameters were collected immediately prior to CTA and from the previous results within the previous 7 days. Hemodynamic instability was defined as a mean arterial pressure (MAP) <...
Read more Results A total of 120 patients were included (60 patients in each group; mean age: 72 years; 42.5% women). The demographic, clinical, and analytical characteristics of the sample and the bivariate analyses based on the presence of active bleeding are shown in Table 1. [fig 1]  The univariate logistic regression analysis for the dependent variable "active bleeding" is summarized in Table 2. The variables that showed the highest odds ratios (OR) were the difference between previous INR and immediately prior to CTA (OR =...
Read more Conclusion We have identified a set of clinical and analytical factors associated with the detection of active bleeding on CTA in patients with LGIB. Additionally, we have developed a multivariate model with high discriminatory capacity based on the difference in INR values between the baseline and prior to CTA, tachycardia, and hemodynamic instability. These parameters are easy to obtain in clinical practice and allow an appropriate management of patients with LGIB, guiding decision-making and thus avoiding unnecessary or low-diagnostic-value CTA. However,...
Read more References Triantafyllou K, Gkolfakis P, Gralnek IM, Oakland K, Manes G, Radaelli F, et al. Diagnosis and management of acute lower gastrointestinal bleeding: European Society of Gastrointestinal Endoscopy (ESGE) Guideline. Vol. 53, Endoscopy. Georg Thieme Verlag; 2021. p. 850-68.  Devani K, Radadiya D, Charilaou P, Aasen T, Reddy CM, Young M, et al. Trends in hospitalization, mortality, and timing of colonoscopy in patients with acute lower gastrointestinal bleeding. Endosc Int Open. 2021;09(06):E777-89.  Sengupta N, Feuerstein JD, Jairath V, Shergill AK, Strate LL,...
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