First Fully Endoscopic End-to-End Colonic Anastomoses With a Novel Endoscopic Device: A Feasibility Study in a Porcine Model
Bibliographic record
Abstract
BACKGROUND: Continuous advancements and breakthroughs in flexible GI endoscopy have led to alternatives to colonic anastomosis. OBJECTIVE: This study aimed to evaluate the feasibility and safety of end-to-end colonic anastomosis using a single flexible endoscope with the novel through-the-scope "bow-tie" device and conventional metal clips in a porcine model. DESIGN: Animal study. SETTINGS: Animal laboratory at China Medical University. PATIENTS: Eight healthy pigs were included. INTERVENTIONS: Eight animals underwent total colonic severance and anastomoses with through-the-scope "bow-tie" devices and metal clips. MAIN OUTCOME MEASURES: The primary outcomes were the success rate of the anastomosis and survival rate during 3-month follow-up. Furthermore, the secondary outcomes were anastomotic site healing, reintervention rate, and rate of anastomotic complications such as bleeding, leakage, stenosis, and obstruction. Six pigs were euthanized, and necropsies were performed 3 months postoperatively, whereas 2 pigs were fed for long-term observation. The anastomotic stoma was histologically analyzed using hematoxylin-eosin and Masson's trichrome staining. RESULTS: End-to-end colonic anastomoses were successfully performed using through-the-scope "bow-tie" devices and metal clips, and satisfactory healing was achieved in all pigs. The success rate of anastomosis was 100% (8/8). All animals survived postoperatively without anastomotic complications, including bleeding, leakage, or obstruction; however, 2 cases of stenosis occurred (25%) and 1 case (12.5%) required reintervention. LIMITATIONS: Large-scale studies should be conducted to verify the feasibility and safety of the through-the-scope "bow-tie" device in other parts of the intestine. CONCLUSIONS: Flexible endoscopy with the through-the-scope "bow-tie" device is feasible and safe for intraluminal colonic anastomosis. This study may expand the indications for full-thickness endoscopic resection in the future. See Video Abstract . LA FALTA DE ACCESO REGULAR A UN MDICO DE ATENCIN PRIMARIA SE ASOCIA CON UN AUMENTO DE VISITAS AL DEPARTAMENTO DE EMERGENCIA RELACIONADAS CON LAS NECESIDADES DE SUPERVIVENCIA ENTRE LOS SOBREVIVIENTES DE CNCER DE RECTO: ANTECEDENTES:Con los avances en el tratamiento del cáncer de recto y el mejor pronóstico, hay un número creciente de sobrevivientes de cáncer de recto con necesidades únicas.OBJETIVOS:Presumimos que una proporción significativa de nuestros sobrevivientes de cáncer de recto carecen de acceso regular a un médico de atención primaria. El objetivo de nuestro estudio fue examinar la asociación entre el acceso a un médico de atención primaria y las visitas al departamento de emergencias relacionadas con la supervivencia.DISEÑO:Estudio de cohorte retrospectivo de supervivientes de cáncer de recto que finalizaron todo el tratamiento.PACIENTES:Pacientes con cáncer de recto que se sometieron a proctectomía y completaron el tratamiento entre 2005 y 2021.ESCENARIO:Centro único de atención terciaria en Quebec, Canadá.MEDIDA DE RESULTADO PRINCIPAL:Visitas al departamento de emergencias relacionadas con la supervivencia.RESULTADOS:En total, se incluyeron 432 sobrevivientes de cáncer de recto. La mediana de edad fue 72 (rango intercuartil 63-82) años, 190 (44,0%) eran mujeres y la mediana del índice de comorbilidad de Charlson fue 5 (rango intercuartil, 4-6). Había 153 (35,4%) personas no registradas con un médico de atención primaria. Sesenta personas visitaron el departamento de emergencias debido a preocupaciones relacionadas con la supervivencia. Utilizando el análisis de riesgos proporcionales de Cox, la falta de registro con un médico de atención primaria se asoció con una mayor probabilidad de tener visitas al departamento de emergencias relacionadas con la supervivencia.LIMITACIONES:Este estudio estuvo limitado por el diseño observacional.CONCLUSIÓN:La falta de acceso regular a un médico de atención primaria puede contribuir al aumento de las visitas al departamento de emergencia entre los sobrevivientes de cáncer de recto. Se necesitan esfuerzos para mejorar el acceso al médico de atención primaria y coordinar la atención interdisciplinaria para mejorar la atención a los sobrevivientes. (Traducción-Dr Osvaldo Gauto ).
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".