title: Foreign body-induced changes in the reticular contraction pattern of sheep observed with M-mode ultrasonography.
abstract: In the pre-experimental period of a clinical trial, an apparently clinically healthy sheep fitted with ruminal and abomasal cannulas showed changes in the reticular contraction pattern visualized in M-mode ultrasonogram. Radiographic examination revealed a blunt metal screw in its reticulum. By the time change in the reticular motility through the ultrasound examination was detected, the animal had still not expressed any behavioral changes. A description of the clinical case, follow-up of the findings and laboratory data, like white blood cell count, serum pepsinogen and fibrinogen concentrations, were presented. The foreign body was removed through the ruminal cannula and reticular contraction tended to normal. An association of the contraction pattern with measured clinical data was possible, leading to the conclusion that use of M-mode ultrasonography has a potential application in similar clinical situations.
authors.affiliation: Department of Clinical Science, Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo, 05508 270, Sao Paulo, SP, Brazil.
authors.forename: A A
authors.initials: AA
authors.lastname: Morgado
authors.affiliation: Department of Clinical Science, Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo, 05508 270, Sao Paulo, SP, Brazil.
authors.forename: M C A
authors.initials: MC
authors.lastname: Sucupira
authors.affiliation: Department of Clinical Science, Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo, 05508 270, Sao Paulo, SP, Brazil.
authors.forename: G R
authors.initials: GR
authors.lastname: Nunes
authors.affiliation: Department of Surgery, Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo, 05508 270, Sao Paulo, SP, Brazil.
authors.forename: S C F
authors.initials: SC
authors.lastname: Hagen
keywords: Blunt object; M-mode curve; Reticulum; Ruminant