Subject(s)
Dog Diseases/diagnostic imaging , Stomach Diseases/veterinary , Animals , Dog Diseases/surgery , Dogs , Female , Gastroscopy/veterinary , Hypertrophy/diagnostic imaging , Hypertrophy/surgery , Hypertrophy/veterinary , Pylorus/diagnostic imaging , Pylorus/pathology , Pylorus/surgery , Radiography, Abdominal/veterinary , Stomach Diseases/diagnostic imaging , Stomach Diseases/surgery , Treatment Outcome , Vomiting/etiology , Vomiting/veterinaryABSTRACT
A 10-month-old, intact male Chihuahua presented for a 7-month history of regurgitation and coughing. Survey radiographs revealed a soft-tissue opacity within the distal esophagus. A contrast study confirmed the presence of an esophagobronchial fistula. Endoscopic removal of foreign material within the esophagus allowed for visualization of an esophageal diverticulum. Bronchoscopic examination revealed the presence of an abnormal opening in a right caudal tertiary bronchus. Passage of a cardiac guidewire was accomplished, confirming the presence of the fistula and aiding its subsequent surgical removal.
Subject(s)
Bronchial Fistula/veterinary , Dog Diseases/diagnosis , Esophageal Fistula/veterinary , Animals , Bronchial Fistula/complications , Bronchial Fistula/diagnosis , Bronchoscopy/veterinary , Contrast Media , Diagnosis, Differential , Dog Diseases/diagnostic imaging , Dog Diseases/pathology , Dog Diseases/surgery , Dogs , Esophageal Fistula/complications , Esophageal Fistula/diagnosis , Esophagoscopy/veterinary , Fluoroscopy/veterinary , Male , Vomiting/etiology , Vomiting/veterinaryABSTRACT
BACKGROUND: The purpose of the study was to evaluate the influence of a proximal hydroxyapatite (HA) coating in comparison with a grit-blasted titanium surface of an anatomic hip stem in an animal model over a maximum duration of 2 years. METHODS: Thirty adult dogs underwent implantation of either a proximally HA-coated or a grit-blasted anatomic titanium stem. The animals were clinically evaluated for their walking ability, and serial radiographs were taken. The femora were assessed histomorphologically at set time points from 6 weeks to 2 years postoperatively. Undecalcified thin section specimens through the proximal and distal portion of the coating or grit blasting were prepared. The percentage of implant surface with direct bone contact without connective tissue involvement was determined. RESULTS: Radiographically, animals with uncoated prostheses showed characteristic signs of loosening more frequently. Histomorphometrically, an average of 65% of the surface of HA-coated implants had bone contact, but only 14.7% of the surface of grit-blasted prostheses ( p=0.0001). There was no relationship between bone contact and the duration of implantation of the prosthesis, either for the coated or for the uncoated prostheses. HA coating enhances osseointegration of an anatomic hip stem. CONCLUSION: Anatomic stems with rounded design require a surface coating or surface structure, since the mere grit-blasting of the titanium surface does not ensure osseointegration in this animal model.
Subject(s)
Durapatite/pharmacology , Titanium , Animals , Coated Materials, Biocompatible , Disease Models, Animal , Dogs , Hip Prosthesis , Implants, Experimental , Osseointegration/physiology , Prosthesis Design , Prosthesis Failure , Sensitivity and Specificity , Weight-BearingSubject(s)
Dog Diseases/diagnosis , Uterine Diseases/veterinary , Animals , Diagnosis, Differential , Dog Diseases/diagnostic imaging , Dog Diseases/surgery , Dogs , Female , Hysterectomy/veterinary , Ovariectomy/veterinary , Radiography, Abdominal/veterinary , Torsion Abnormality/diagnosis , Torsion Abnormality/diagnostic imaging , Torsion Abnormality/surgery , Torsion Abnormality/veterinary , Uterine Diseases/diagnosis , Uterine Diseases/diagnostic imaging , Uterine Diseases/surgerySubject(s)
Clostridium Infections/veterinary , Clostridium perfringens/isolation & purification , Dog Diseases/diagnosis , Liver Diseases/veterinary , Abdomen/diagnostic imaging , Animals , Clostridium Infections/diagnosis , Clostridium perfringens/metabolism , Dog Diseases/diagnostic imaging , Dog Diseases/microbiology , Dogs , Fatal Outcome , Female , Liver Diseases/diagnosis , Liver Diseases/diagnostic imaging , Liver Diseases/microbiology , Radiography, Abdominal/veterinary , UltrasonographySubject(s)
Cyanosis/veterinary , Dog Diseases/diagnostic imaging , Dyspnea/veterinary , Foreign Bodies/veterinary , Animals , Cyanosis/etiology , Dog Diseases/etiology , Dog Diseases/surgery , Dogs , Dyspnea/etiology , Female , Foreign Bodies/complications , Foreign Bodies/diagnostic imaging , Foreign Bodies/surgery , Foreign-Body Migration/diagnostic imaging , Foreign-Body Migration/surgery , Foreign-Body Migration/veterinary , Radiography, Thoracic/veterinary , Trachea/diagnostic imaging , Trachea/pathologyABSTRACT
The effect of metrizamide myelography on 90-minute postmyelographic cerebrospinal fluid (CSF) samples was evaluated in a paired crossover study in 16 normal dogs. Each dog received a routine cervical myelogram (nonwithdrawal myelography) and a myelogram followed by contrast medium removal via aspiration from the subarachnoid space (withdrawal myelogram). Following nonwithdrawal myelography, the CSF was characterized by mild inflammation with a mixed pleocytosis and increased protein concentration. Compared with the nonwithdrawal CSF samples, the postmyelographic CSF of the withdrawal dogs had a more severe inflammatory response with significant increases (p < 0.05) in absolute numbers of neutrophils, monocytoid cells, eosinophils, lymphocytes, and protein concentration. The withdrawal procedure may have contributed an additional mechanical effect on the leptomeninges producing the more severe inflammatory response in the withdrawal dogs. Although seizure data are not reported here, postmyelographic seizures were more frequent following non-withdrawal myelography as compared with withdrawal myelography (p < 0.05), suggesting a decrease in metrizamide-induced neurotoxicity for the withdrawal dogs.
