ABSTRACT
Introduction: Stenotrophomonas maltophilia is a non-fermentative gram-negative bacillus with increasing importance as a multidrug-resistant nosocomial agent. Despite reports of mortality rates between 14 and 69% in patients with bacteremia, the information documented in our environment is minimal. Methods: Descriptive, observational, retrospective and longitudinal study. Outpatients and hospitalized patients were sampled between January 1 and December 31, 2019, from the Centro Médico Nacional siglo XXI. Bacterial growth was evaluated to identify the presence of S. maltophilia. In a total of 7,019 cultures, we observed a frequency of 94 cases of S. maltophilia and in Results: these we identi?ed that 54.5% were resistant to trimethoprim-sulfamethoxazole. Women were the most affected by this entity with a median age of 54.5 years. Fifty percent of the samples came from intensive therapy and the most frequent site of extraction was the trachea. We identi?ed a higher resistance to trimethoprim-sulfamethoxazole than that reported in the Discussion: literature (5%), in an organism capable of developing both nosocomial and community-acquired infections, forcing us to suspect its existence as well as a second treatment option in the face of multidrug resistance
ABSTRACT
@#AIM: To analyse and characterize the pattern of working and mobile phone usage distances(MPUD)for common users of electronic devices and computers.<p>METHODS: Transversal descriptive study consisting of a screening campaign evaluating the visual status of different professionals working with computers or electronic devices more than 2h per day. A total of 100 healthy patients with a mean age of 41.2(range: 20-62)years were revised and subdivided according to job subgroups. A battery of screening tests was performed to all participants in a single session at the working environment of each of them, including measurement of the working distance(WD), arm length, and MPUD.<p>RESULTS:The WD was significantly longer than MPUD(61.22±12.35 <i>vs</i> 32.22±6.35 cm; <i>P</i><0.001). Likewise, MPUD was significantly shorter than the arm length(74.44±4.65 cm; <i>P</i><0.001). A total of 4%(4/100)and 91%(91/100)of patients had a WD and MPUD of 40 cm or below, respectively. A weak although statistically significant correlation was found between WD and MPUD(<i>r</i>=0.387, <i>P</i><0.001)as well as between WD and arm length(<i>r</i>=0.260, <i>P</i>=0.009). Statistically significant differences were detected among job subgroups in WD(<i>P</i>=0.021), being longer for militaries compared to university researchers and lecturers(<i>P</i>=0.025).<p>CONCLUSION:Working and mobile phone usage distances vary significantly among common users of computers and digital devices, although the use of mobile phones tends to be performed at significantly closer distances. This parameter should be considered when planning any type of optical correction, especially for presbyopia.