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Background: Shotgun injuries (SGI) are infrequent, but due its special ballistics, are related to adverse outcomes., Objective: To analyze operative and administrative variables, critical for the institution., Method: Demographics and health-care related variables from SGI patients admitted to Military Central Hospital (Mexico City) between July 2006 and August 2019, were retrospectively studied. Statistics methods used were dispersion measures and relative occurrence frequency., Results: Over a 15 months-span, 21 SGI patients were admitted. Mean age was 36.9 ± 13.6 years (range: 14-61) and male gender was dominant (n = 20; 95%). Type II SGI were the most common injuries (62%; 13/21). Mean hospital length of stay was 37.1 ± 28.7 days (range: 3-109) while stay at ICU was 20.3 ± 22.5 days (range: 3-99). Global rate of morbidity was 82% (17/21) and most frequent complications were infective. Global mortality rate was 24% (5/21)., Conclusions: Once SGI cause prolonged length of stay, high rate of morbidity and of enormous consuming of material and human resources, primary prevention strategies are convenient for health-care systems compromised to the care of these cases., (Copyright: © 2020 Permanyer.)

Background: Nowadays, there are few differences between civilian and military trauma, requiring to surgeons serving at urban hospitals, the acquisition of competences leading to implementation of management strategies for these cases. For their training, instructional designs related to surgical education, incorporating multimedia resources and favoring the multichannel teaching-learning process, have demonstrated remarkable benefits on competences acquisition by participants., Method: Using an instructional design sustained on problems based learning and problems resolution, a digital video and its associated flat text were reviewed by the General Surgery residents, with the further application of a wide-answer problem-resolution questionnaire. Questionnaire's results were evaluated by an information-management analytic rubric, leading to obtain evidence related to competences acquisition., Results: In this series, 17 general surgery residents were included. Using the didactic strategy of the instructional design, 76.5% (n = 13) of participants acquired the expected level-5 generic instrumental methodologic competence, consisting in a relevant making-decisions process for problems resolution., Discussion: Incorporation of multimedia resources into instructional designs leads a significant multichannel learning and generic instrumental-methodologic competences, so that their preferential use is recommended., (Copyright: © 2019 Permanyer.)