[Colonization of post-operative wounds by endogenous gram-negative rods in patients after laryngectomy].

The bacterial flora of the posterior laryngeal wall, larynx and surgical wounds of the patients treated surgically for carcinoma of the larynx was investigated. A similarity of some bacterial strains isolated from various habitats was demonstrated by comparing the biochemical characteristics, drug resistance patterns, and susceptibility to bacteriocins and bacteriophages. Bacteriophagotyping confirmed the similarity of rods belonging to the genera Enterobacter and Pseudomonas. Thus, colonization of surgical wounds by bacteria present in the pharynx and the larynx, but not inducing healing complications, has been confirmed. The detected strains demonstrated high susceptibility to antibiotics, including those administered within the framework of post-operative preventive treatment.