Analytical determination of medical gases consumption and their impact on hospital sustainability

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Analytical determination of medical gases consumption and their impact on hospital sustainability

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Title: Analytical determination of medical gases consumption and their impact on hospital sustainability
Author: Gómez Chaparro, Miguel; García Sanz-Calcedo, Justo; Armenta Márquez, Luis
Abstract: Se sabe que los gases medicinales muestran un gran impacto ambiental y también consumen recursos relevantes en términos de gestión hospitalaria. El presente trabajo informa sobre un estudio realizado entre 2008 y 2016 en un conjunto objetivo de 12 hospitales españoles con área de piso y número de camas de 2314–23,300 m2 y 20–194, respectivamente, para las cuales las tasas de consumo anual promedio de oxígeno, nitrógeno, se analizaron aire medicinal, dióxido de carbono y protóxido de nitrógeno. Se demostró que el consumo anual de gases medicinales en un hospital estaba correlacionado con el número de egresos hospitalarios, el número de cirugías, el número de intervenciones de emergencia, el número de hospitalizaciones, el número de camas de hospital, el área útil del piso del edificio. y la cantidad de trabajadores. En particular, el consumo anual por cama de hospital se calculó como 350 m3 para oxígeno, 325 m3 para aire medicinal, 9 m3 para protóxido de nitrógeno y 3 m3 para dióxido de carbono. Se muestra que la actividad de atención médica aparece como una variable adecuada para cuantificar y monitorear el consumo de gases médicos en los hospitales, evaluar el tamaño de sus instalaciones y optimizar la gestión del mantenimiento.Medical gases are known to show a great environmental impact and also to consume relevant resources in terms of hospital management. The present work reports on a study performed between 2008 and 2016 in a target set of 12 Spanish hospitals with floor area and number of beds ranging 2314–23,300 m2 and 20–194, respectively, for which the average annual consumption rates of oxygen, nitrogen, medicinal air, carbon dioxide and nitrogen protoxide were analysed. The annual consumption of medical gases in a hospital was proved to be correlated with the number of hospital discharges, the number of surgeries, the number of emergency interventions, the number of hospitalisations, the number of hospital beds, the useful floor area of the building and the number of workers. In particular, the annual consumption per hospital bed was computed as 350 m3 for oxygen, 325 m3 for medicinal air, 9 m3 for nitrogen protoxide and 3 m3 for carbon dioxide. It is shown that healthcare activity appears as an adequate variable to quantify and to monitor medical gases consumption in hospitals, to assess the size of their facilities as well as to optimise maintenance management.
URI: http://hdl.handle.net/10662/9863
Date: 2018


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