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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Impacto da microcirurgia endoscópica transanal sobre a função anorretal: avaliação clínica, funcional e da qualidade de vida / Impact of transanal endoscopic microsurgery on anorectal function: a prospective clinical, functional, and quality of life investigation before and after surgery

Mendes, Carlos Ramon Silveira 07 March 2018 (has links)
Introdução: Descrita em 1983 e de sólida aplicação clínica, o impacto da microcirurgia endoscópica transanal (TEM) sobre a função anorretal permanece pouco conhecido. Os objetivos do presente estudo foram avaliar o impacto da TEM na função anorretal conforme avaliações clínicas (Wexner score) e funcional (manometria anorretal) antes e após a cirurgia. Método: Prospectivamente, 23 pacientes consecutivos com lesões retais foram operados com o uso do equipamento TEO® (Karl Storz, Tuttlingen, Alemanha). Para todos os pacientes, o valor do escore de Wexner foi obtido antes e após a cirurgia (7, 30 e 90 dias), e a eletromanometria anorretal foi realizada antes da cirurgia e também no pós-operatório (30 e 90 dias). Resultados: Quatorze pacientes eram homens. A idade média foi 53,7 (24-81) anos. A distância média da lesão à linha pectínea foi de 7 (2-15) cm. A histopatologia revelou adenoma em 14 (61%), tumor neuroendócrino em 5 (21,7%), carcinoma invasivo em 3 (13%) e pólipo hiperplásico em 1 (4,3%) caso. A duração média do seguimento pós-operatório foi de 5 (3-7) meses. O escore de Wexner foi significativamente menor aos 30 dias em comparação com 7 dias (Wilcoxon, p = 0,03). A capacidade retal foi significativamente menor aos 30 dias após a cirurgia e recuperada aos 90 dias após a cirurgia (ANOVA, p = 0,04). Conclusões: Após TEM, um impacto modesto na função anorretal pode ser observado. O comprometimento transitório resulta de perda de capacidade retal e não por comprometimento dos esfíncteres anais cessando completamente 90 dias após a cirurgia. Em última análise, não conseguimos detectar um impacto na qualidade de vida após TEM / Background: The impact of transanal endoscopic microsurgery (TEM) on anorectal function remains poorly available, particularly when considering that the technique involves undertaking full- or partial-thickness excision of the rectal wall. Moreover, in spite of wide adoption of TEM, its impact on quality of life remains unknown since most evidence derives from retrospective studies. Objective: The objectives of the present study were to evaluate the impact of TEM on sphincter function determined by clinical (Wexner score), functional (anorectal manometry), and quality of life (FIQL) evaluations conducted before and after surgery. Design: prospective, observational, single-center, 23 consecutive patients with rectal lesions underwent were operated on using the TEO® equipment (Karl Storz, Tuttlingen, Germany). Wexner and FIQL scores were obtained before and after surgery (7 days, 30 days and 90 days postoperatively). Anorectal manometry was obtained before surgery, and postoperatively after 30 and 90 days. Main Outcome Measures: Wexner and FIQL scores; anorectal manometry results. Results: Fourteen patients were men. Mean age was 53.7 (24-81) yrs. Mean distance from the lesion to the dentate line was 7 (2-15) cm. A full- thickness resection was undertaken in 18 (78.3%) cases. Histopathology revealed adenoma in 14 (61%), neuroendocrine tumor in 5 (21.7%), invasive carcinoma in 3 (13%), and hyperplastic polyp in 1 (4.3%) case. Postoperative rectal wound separation occurred in 2 patients and 1 patient developed atrial fibrillation. The mean duration of postoperative follow-up was 5 (3-7) months. Overall, Wexner score significantly declined between postoperative days 7 and 30 (Wilcoxon, p = 0.03). Rectal compliance exhibited significant decline 30 days after surgery and recovery at 90 days after surgery (ANOVA, p = 0.04). It was not possible to measure any difference in the FIQL results before and after surgery. Limitations: small sample size; limited follow-up. Conclusions: Following TEM, a modest impact on anorectal function could be confirmed. Interestingly, anorectal function impairment after surgery was not due to sphincter dysfunction, but resulted from loss of rectal compliance. Ultimately, we could not detect a significant impact on quality of life after TEM
2

Impacto da microcirurgia endoscópica transanal sobre a função anorretal: avaliação clínica, funcional e da qualidade de vida / Impact of transanal endoscopic microsurgery on anorectal function: a prospective clinical, functional, and quality of life investigation before and after surgery

Carlos Ramon Silveira Mendes 07 March 2018 (has links)
Introdução: Descrita em 1983 e de sólida aplicação clínica, o impacto da microcirurgia endoscópica transanal (TEM) sobre a função anorretal permanece pouco conhecido. Os objetivos do presente estudo foram avaliar o impacto da TEM na função anorretal conforme avaliações clínicas (Wexner score) e funcional (manometria anorretal) antes e após a cirurgia. Método: Prospectivamente, 23 pacientes consecutivos com lesões retais foram operados com o uso do equipamento TEO® (Karl Storz, Tuttlingen, Alemanha). Para todos os pacientes, o valor do escore de Wexner foi obtido antes e após a cirurgia (7, 30 e 90 dias), e a eletromanometria anorretal foi realizada antes da cirurgia e também no pós-operatório (30 e 90 dias). Resultados: Quatorze pacientes eram homens. A idade média foi 53,7 (24-81) anos. A distância média da lesão à linha pectínea foi de 7 (2-15) cm. A histopatologia revelou adenoma em 14 (61%), tumor neuroendócrino em 5 (21,7%), carcinoma invasivo em 3 (13%) e pólipo hiperplásico em 1 (4,3%) caso. A duração média do seguimento pós-operatório foi de 5 (3-7) meses. O escore de Wexner foi significativamente menor aos 30 dias em comparação com 7 dias (Wilcoxon, p = 0,03). A capacidade retal foi significativamente menor aos 30 dias após a cirurgia e recuperada aos 90 dias após a cirurgia (ANOVA, p = 0,04). Conclusões: Após TEM, um impacto modesto na função anorretal pode ser observado. O comprometimento transitório resulta de perda de capacidade retal e não por comprometimento dos esfíncteres anais cessando completamente 90 dias após a cirurgia. Em última análise, não conseguimos detectar um impacto na qualidade de vida após TEM / Background: The impact of transanal endoscopic microsurgery (TEM) on anorectal function remains poorly available, particularly when considering that the technique involves undertaking full- or partial-thickness excision of the rectal wall. Moreover, in spite of wide adoption of TEM, its impact on quality of life remains unknown since most evidence derives from retrospective studies. Objective: The objectives of the present study were to evaluate the impact of TEM on sphincter function determined by clinical (Wexner score), functional (anorectal manometry), and quality of life (FIQL) evaluations conducted before and after surgery. Design: prospective, observational, single-center, 23 consecutive patients with rectal lesions underwent were operated on using the TEO® equipment (Karl Storz, Tuttlingen, Germany). Wexner and FIQL scores were obtained before and after surgery (7 days, 30 days and 90 days postoperatively). Anorectal manometry was obtained before surgery, and postoperatively after 30 and 90 days. Main Outcome Measures: Wexner and FIQL scores; anorectal manometry results. Results: Fourteen patients were men. Mean age was 53.7 (24-81) yrs. Mean distance from the lesion to the dentate line was 7 (2-15) cm. A full- thickness resection was undertaken in 18 (78.3%) cases. Histopathology revealed adenoma in 14 (61%), neuroendocrine tumor in 5 (21.7%), invasive carcinoma in 3 (13%), and hyperplastic polyp in 1 (4.3%) case. Postoperative rectal wound separation occurred in 2 patients and 1 patient developed atrial fibrillation. The mean duration of postoperative follow-up was 5 (3-7) months. Overall, Wexner score significantly declined between postoperative days 7 and 30 (Wilcoxon, p = 0.03). Rectal compliance exhibited significant decline 30 days after surgery and recovery at 90 days after surgery (ANOVA, p = 0.04). It was not possible to measure any difference in the FIQL results before and after surgery. Limitations: small sample size; limited follow-up. Conclusions: Following TEM, a modest impact on anorectal function could be confirmed. Interestingly, anorectal function impairment after surgery was not due to sphincter dysfunction, but resulted from loss of rectal compliance. Ultimately, we could not detect a significant impact on quality of life after TEM

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