Affiliation:
1. Facultad Mexicana de Medicina, Universidad La Salle, Hospital Ángeles del Pedregal.
2. Centro Médico Nacional Siglo XXI, Universidad Nacional Autónoma de México.
3. Universidad Juárez del Estado de Durango. Paloma 812, Colonia Fátima CD 34060, Durango, México.
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 Results: S. maltophilia and in
these we identied 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 identied a higher resistance to trimethoprim-sulfamethoxazole than that repor Discussion: ted in the
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.
Subject
Insect Science,Ecology, Evolution, Behavior and Systematics,Infectious Diseases,Immunology and Allergy,Medicine (miscellaneous),Epidemiology,Molecular Biology,Biochemistry,Infectious Diseases,Pulmonary and Respiratory Medicine,Aerospace Engineering,Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Computer Networks and Communications,Software,Electrical and Electronic Engineering,Communication,Artificial Intelligence,Information Systems,Control and Systems Engineering,Software,Urban Studies,Sociology and Political Science,Development