title: [Bacteriological investigation of the pre- and postoperative transition of the pharyngeal flora in the patients received tonsillectomy].
abstract: Several investigations have been reported on the interactive relation between the normal flora and the pathogenic micro-organisms in the human upper respiratory tracts (Thompson, Sanders, etc). It has also been known that some alpha-streptococci have inhibitory effect on the growth of group A beta-hemolytic streptococci. A study upon the role of alpha-streptococci in the throat (tonsil and pharynx) was performed using 73 culture specimens (throat swabs) obtained from 42 patients. Forty-four specimens were taken from the patients who received tonsillectomy, pre- and postoperatively, and 29 were from the patients who did not receive the operation. In the group of patients who received tonsillectomy, alpha-streptococci with inhibitory effect on the growth of group A beta-streptococci were detected less frequently preoperatively, when compared with the patients without tonsillectomy. On the other hand, postoperatively, marked increase of alpha-streptococci of these types was found in the normal flora of the throat. However, further detailed study on this subject is necessary because of the exceptional results in our observations.
authors.forename: I
authors.initials: I
authors.lastname: Fujimori
authors.forename: M
authors.initials: M
authors.lastname: Uchida
authors.forename: R
authors.initials: R
authors.lastname: Goto
authors.forename: Y
authors.initials: Y
authors.lastname: Ohishi
authors.forename: Y
authors.initials: Y
authors.lastname: Murakami
authors.forename: T
authors.initials: T
authors.lastname: Yamada
mesh_terms: D000293:Adolescent; D000328:Adult; D000898:Antibiosis; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010614:Pharynx / Q000382:microbiology*; D011184:Postoperative Period; D013291:Streptococcus / Q000302:isolation & purification* / Q000502:physiology; D014068:Tonsillectomy; D014069:Tonsillitis / Q000382:microbiology / Q000601:surgery