RESUMEN
OBJECTIVE: The increase in the demand for healthcare caused by COVID-19 implies a lower availability of health resources and influences the appropriateness of their use. Due to the variability of demand during the pandemic, the study aimed to compare the appropriateness of hospital admissions between the 2nd and 5th phases of the pandemic according to the criteria of the Hospital Emergency Service (CiHRyC). These results were compared with those obtained according to the Pneumonity Severity Index (FINE) and the Appropriateness Evaluation Protocol (AEP). As a secondary objective, the clinical and sociodemographic characteristics of the patients studied were described. METHODS: 80 patients hospitalized from the Emergency Department were randomly selected in two study periods (2nd and 5th pandemic phase) obtained from the registry of hospitalizations of the Preventive Medicine service of Hospital Ramon y Cajal. Prevalences of inappropriateness were estimated according to the CiHRyC, FINE and AEP and an analysis was performed using univariate logistic regression between epidemiological variables of both periods collected through the electronical medical records. RESULTS: Inappropriateness of admissions were 35% and 45% in the 2nd and 5th phase of the pandemic according with CiHRyC, 25% and 5/% according with FINE and 0% and 5% according with AEP. Median age was 71.4 and 50.0 years in 2nd and 5th phase (p=0.02). 72.5% and 17.5% of the patients in the 2nd and 5th phases had at least one risk factor for COVID-19 severe illness (p<0.01). CONCLUSIONS: The measurement tools used identified more inappropriately cases in the 5th phase of the pandemic than in the 2nd one. CiHRyC coincided with FINE and AEP in the result of their evaluation.
RESUMEN
BACKGROUND: The coronavirus disease 2019 pandemic has caused problems with respirator supplies. Re-use may minimize the impact of the shortage, but requires the availability of an efficient and safe decontamination method. AIM: To determine whether low-temperature-steam-2%-formaldehyde (LTSF) sterilization is effective, preserves the properties of filtering facepiece (FFP) respirators and allows safe re-use. METHODS: Fourteen unused FFP2, FFP3 and N95 respirator models were subjected to two cycles of decontamination cycles. After the second cycle, each model was inspected visually and accumulated residual formaldehyde levels were analysed according to EN 14180. After one and two decontamination cycles, the fit factor (FF) of each model was tested, and penetration tests with sodium chloride aerosols were performed on five models. FINDINGS: Decontamination physically altered three of the 14 models. All of the residual formaldehyde values were below the permissible threshold. Irregular decreases and increases in FF were observed after each decontamination cycle. In the sodium chloride aerosol penetration test, three models obtained equivalent or superior results to those of the FFP classification with which they were marketed, both at baseline and after one and two cycles of decontamination, and two models had lower filtering capacity. CONCLUSION: One and two decontamination cycles using LTSF did not alter the structure of most (11/14) respirators tested, and did not degrade the fit or filtration capacity of any of the analysed respirators. The residual formaldehyde levels complied with EN 14180. This reprocessing method could be used in times of shortage of personal protective equipment.