Estudo comparativo entre os fios de algodão, poliglactina e poliglecaprone nas anastomoses intestinais de cães

Intra-abdominal complications following intestinal anastomoses by suture and staple techniques in dogs

OBJECTIVE To compare the incidence of intra-abdominal complications in dogs following resection and functional end-to-end stapled anastomosis (FEESA) versus anastomosis with an end-to-end sutured technique for treatment of enteric lesions. DESIGN Multicenter, retrospective descriptive cohort study. ANIMALS 180 dogs. PROCEDURES Medical records of dogs undergoing intestinal resection and anastomosis at 3 nonaffiliated private practice specialty centers were retrospectively reviewed. Preoperative clinical variables, indication for surgery, surgical technique (sutured end-to-end anastomosis vs FEESA), and evidence of postoperative anastomosis site leakage (dehiscence) were recorded. Variables of interest were analyzed for associations with dehiscence. RESULTS Dehiscence rates of sutured and stapled anastomoses were 12 of 93 (13%) and 4 of 87 (5%), respectively; odds of postoperative dehiscence were significantly lower for dogs with FEESAs than for dogs with sutured anastomoses (OR, 0.28; 95% confidence interval, 0.09 to 0.94). Among dogs that underwent surgery for treatment of intestinal dehiscence after surgery at another facility, subsequent dehiscence developed in 3 of 5 with sutured anastomoses and 0 of 11 with stapled anastomoses. Dehiscence rates varied significantly among clinics. No other variable was associated with risk of dehiscence. Eleven of 16 dogs with dehiscence were euthanized without additional surgery. Impaction at the anastomosis site was identified months or years after surgery in 3 dogs (4 anastomosis sites) that had FEESAs. CONCLUSIONS AND CLINICAL RELEVANCE Odds for dehiscence were significantly greater for sutured end-to-end anastomoses than FEESAs, and dogs undergoing surgery for previous dehiscence were significantly more likely to experience a subsequent dehiscence with a sutured anastomosis. However, variability of procedure types and dehiscence rates among clinics suggested further research is needed to confirm these findings. Obstruction at the anastomosis site was identified as a potential long-term complication of FEESA.

Comparación del tiempo de cicatrización entre N-butil cianoacrilato y ácido poliglicólico en caninos sometidos a esterilización

El objetivo de este estudio fue comparar el tiempo de cicatrización entre N-butil cianoacrilato (NBC) y ácido poliglicólico (AC) sobre el cierre tisular en caninos sometidos a operaciones de esterilización. Se realizó un estudio observacional, comparativo y descriptivo sobre una población de 80 perros (Canis familiaris) vivos. Los animales se dividieron en cuatro grupos de 20 perros cada uno según sexo y material de sutura, así: primero grupo, hembras que recibieron NBC; segundo grupo, machos y NBC; tercero grupo, hembras y AC como medio de sutura en piel y cuarto grupo, machos y AC. La técnica quirúrgica en hembras fue oforosalpingohisterectomia y en machos orquiectomia. El tiempo de cierre fue estadísticamente (p < 0,05) menor en los grupos de machos y hembras con el adhesivo NBC comparado con los dos grupos tratados con AC. Se concluye que el NBC es un material seguro y eficaz como medio de fijación tisular en ambas técnicas quirúrgicas que disminuye los días de cierre y recuperación.

Tissue reactivity and suture handling characteristics of "jimat" against silk and chromic gut in cat thigh muscle: A comparative study

AIM

This study was conducted to evaluate and compare the tissue reactivity and suture handling characteristics of chromic gut, silk, and 'jimat' suture materials in cat thigh muscle.

MATERIALS AND METHODS

This experimental study was conducted from November, 2013 to April, 2014 in Kombolcha Animal Diseases Survey, Research and Diagnostic Laboratory, Kombolcha, Ethiopia. A total of 36 local breed male cats were randomly assigned into chromic gut, silk, and "jimat" groups of 12 cats each as A, B, and C, respectively. The hind leg muscle biceps femoris was incised and sutured with suture materials according to their groups. The muscle samples with its suture were collected at six different days interval i.e. 1, 3, 7, 14, 21, and 28 and processed histopathologically to assess the degree of leukocytic infiltration and fibrous and granulation tissue formation (GTF). In addition, all suture materials were evaluated intraoperatively about their handling characteristics, by rating the precision of knot tying, square knot positioning, and resistance to knot slippage. The statistical analysis was done with two-way ANOVA, Kruskal-Wallis, and Chi-square tests.

RESULTS

The histopathology showed that "jimat" thread (2.4±1.2) had produced least leukocytic infiltration than chromic gut (4.5±1.9) and silk (4.3±1.5) sutures during the study period. Higher GTF was seen at day 3 (6 [100%]), 7 (6 [100%]) and day 14 (4 [66.7%]) in all sutures, whereas "jimat" showed significantly (p<0.05) higher fibrous tissue formation (10 [83.3%]) than others. Moreover, "jimat" suture had equal suture handling characteristics (p>0.05) with both chromic gut and silk.

CONCLUSION

The result indicated that a single strand "jimat" thread appears to be the most satisfactory suture material as regards to both tissue reaction and suture handling characteristics for skeletal muscle approximation in cats and provided that studies on its carcinogenic effects should be done.