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synthetic surgical models, because they improve student confidence and proficiency in a procedure before advancing to live animal experiences. These modalities also reduce the costs associated with live animal surgeries and decrease the number of live

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in American Journal of Veterinary Research

SUMMARY

Transcutaneous oxygen (PO2-TC) monitoring is commonly used in human medicine for evaluating skin viability. The application of transcutaneous monitoring for evaluating skin viability in dogs was investigated.

The changes in PO2-TC values were measured from 16 avascular skin flaps created along the lateral hemithoraces of 4 dogs. Transcutaneous oxygen values were serially recorded from the vascular base and avascular apex of each flap for 12 hours after surgery. A single transcutaneous measurement was obtained from each flap base and apex 24 hours after surgery. Serial arterial blood gas analyses were obtained to compare central oxygen values with PO2-TC values. Full-thickness skin biopsy specimens were harvested from the base and apex of each flap 24 hours after surgery. The flaps were observed for 4 days and then excised for histologic examination. A subjective grading scale was used to assess histologic changes.

Throughout the 12-hour period and at 24 hours, a statistically significant difference was found between the PO2-TC values for apices and bases of the flaps. The mean PO2-TC for all bases was 90.9 mm of Hg ± 3.3 SEM, and the mean PO2-TC for all apices was 21.2 mm of Hg ± 1.8 SEM. The mean regional perfusion index (apex PO2-TC/base PO2-TC) was 0.23 ± 0.02. The subjective numbers assigned to the biopsy specimens were statistically evaluated by using a paired Student's t test and a Wilcoxon signed-rank test. A significant difference was found between the numbers for the collective bases and apices with both tests. A statistically significant difference was found between the numbers for the apex biopsy specimens taken 24 hours after creation of the skin flap and those taken when the flap was excised, whereas no difference was found between the numbers for the base biopsy specimens. On the basis of our findings, PO2-tc monitoring is a useful technique for assessing skin viability in dogs.

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in American Journal of Veterinary Research

surgeons (a board-certified veterinary surgeon [experienced surgeon] and a fourth-year veterinary student with 1 year of clinical experience [novice surgeon]). The linea alba was left intact for the remaining block (control). A block randomization method

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in American Journal of Veterinary Research

analysis —Pooled body weight and cystotomy time were compared between closure methods by use of a Student t test. Within each healing duration, data for biomechanical testing and overall inflammation score that were normally distributed and of equal

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in American Journal of Veterinary Research

test. m Replica stiffness before osteotomy was compared with stiffness after osteotomy for each method by use of 2-tailed Student t tests. Results were compared between methods by use of a 1-way ANOVA. Results were compared with historical target

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in American Journal of Veterinary Research

overall (ZSCS vs suture) and between cranial and caudal halves were evaluated with a Student t test or Mann-Whitney U test. Differences in closure time within horse was evaluated with a paired t test. Differences in mean ECIS and edema score between

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in American Journal of Veterinary Research

Zoetis Summer Student Fellowship. Presented in part at the 3rd International Society for Companion Animal Infectious Disease Symposium, Niagara-on-the-Lake, ON, Canada, October 2014, and the 12th Veterinary Endoscopic Society Conference, Santa Barbara

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in American Journal of Veterinary Research

Statistical analysis was performed with commercially available software. l Results were reported as mean ± SD. A 1-way ANOVA was performed to evaluate results, and the Student t test was used to compare results among groups. Values of P ≤ 0.05 were

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in American Journal of Veterinary Research

groups. A Student t test was used to compare ROI attenuation means, ROI attenuation SDs, and artifact length (in centimeters) between clip material and size types. The folded form F statistic was used to determine whether variances were equal among clip

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in American Journal of Veterinary Research

of suture material used in small animal practice . Can J Vet Res 2016 ; 80 : 162 – 170 . 20. Giusto G Comino F Vercelli C , et al. Evaluation of various hemostatic knot configurations performed by veterinary students . J Am Vet Med

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in American Journal of Veterinary Research