RESUMO
Abstract Purpose To evaluate the effect of fibrin glue on staple-line leak after sleeve gastrectomy. Methods Fourteen adult wistar rats 300 gr were randomized into two groups: Control group (n=7) and study group (n=7). All the rats underwent sleeve gastrectomy using lineer stapler. In the study group, fibrin glue was used to reinforce the staple-line. The rats were sacrificed 7 days after surgery. The stomach was resected, submerged in saline and exposed to excess pressure to obtain a burst pressure value. The gastric staple line was evaluated histopathologically according to the Ehrlich Hunt scale. The results of the two groups were compared. Results The mean Ehrlich-Hunt scores for inflammation, fibroblastic activity and neo-angiogenesis were similar between the groups (p>0.05). Collagen deposition was significantly higher in study group (3.42±0.53) when compared with control group (2.57±0.78) (p=0.035). The mean burst pressure was 137.8±8.5 mmHg for control group and 135.0±8.1 mmHg for study group (p=0.536). Conclusion Reinforcement of the staple-line with fibrin glue has no effect on the burst pressure after sleeve gastrectomy. More studies are needed to evaluate the precautions against leak after sleeve gastrectomy.
Assuntos
Animais , Masculino , Ratos , Deiscência da Ferida Operatória/prevenção & controle , Adesivo Tecidual de Fibrina/farmacologia , Grampeamento Cirúrgico/efeitos adversos , Gastrectomia/métodos , Pressão , Distribuição Aleatória , Técnicas de Sutura , Ratos Wistar , Modelos Animais de DoençasRESUMO
ABSTRACT Purpose: The aim of this study was to evaluate tear osmolarity, tear film function, and ocular surface changes in patients with psoriasis. Methods: At a single center, 30 eyes of 30 patients with psoriasis (group 1) and 30 eyes of 30 healthy individuals (group 2) were evaluated using the Ocular Surface Disease Index (OSDI) questionnaire, Schirmer I test, tear film break-up time (TBUT) test, scoring of ocular surface fluorescein staining using a modified Oxford scale, and tear osmolarity measurement. Results: Tear osmolarity values, OSDI, and Oxford scale scores were significantly higher in group 1 (309.8 ± 9.4 mOsm, 38.9 ± 1.1, and 0.7 ± 1.1, respectively) than in group 2 (292.7 ± 7.7 mOsm, 4.2 ± 0.3, and 0.1 ± 0.3, respectively; p<0.01 for all). TBUT was significantly lower in group 1 (8.7 ± 3.6 s) than in group 2 (18.1 ± 2.8 s; p<0.001). No significant differences were detected in Schirmer I test values between the groups (16.2 ± 2.5 mm in group 1 and 16.6 ± 2.3 mm in group 2; p=0.629). Conclusions: The results of this study showed that psoriasis may influence tear osmolarity and tear film function. Patients with psoriasis showed tear hyperosmolarity and tear film dysfunction.
RESUMO Objetivo: O objetivo deste estudo foi avaliar a osmolaridade da lágrima, função do filme lacrimal e alterações da superfície ocular em pacientes com psoríase. Método: Em um único centro, 30 olhos de 30 pacientes com psoríase (grupo 1) e 30 olhos de 30 indivíduos saudáveis (grupo 2) foram avaliados pelo questionário do Índice de Doença da Superfície Ocular (OSDI), teste de Schirmer tipo I, tempo de ruptura do filme lacrimal (TBUT), coloração por fluoresceína da superfície ocular utilizando a escala de Oxford modificada e osmolaridade lacrimal. Resultados: Os valores de osmolaridade lacrimal, OSDI e escores da escala de Oxford foram significativamente maiores no grupo 1 (309,8 ± 9,4 mOsm, 38,9 ± 1,1 e 0,7 ± 1,1, respectivamente) em comparação com o grupo 2 (292,7 ± 7,7 mOsm, 4,2 ± 0,3 e 0,1 ± 0,3, respectivamente) (p<0,01 para todos). TBUT no grupo 1 (8,7 ± 3,6 s) foi significativamente menor em comparação com o grupo 2 (18,1 ± 2,8 s) (p<0,001). Não foram detectadas diferenças significativas nos valores de teste de Schirmer (16,2 ± 2,5 mm no grupo 1 e 16,6 ± 2,3 mm no grupo 2, p=0,629). Conclusões: Este estudo mostrou que a psoríase pode influenciar osmolaridade lágrima e função do filme lacrimal. Os pacientes com psoríase apresentaram hiperosmolaridade lágrima e disfunção do filme lacrimal.