RESUMEN
BACKGROUND AND AIMS: Endoscopic submucosal dissection (ESD) enables the curative resection of early malignant lesions and is associated with reduced recurrence risk. Due to the lack of comprehensive ESD data in the West, the German ESD registry was set up to evaluate relevant outcomes of ESD. METHODS: The German ESD registry is a prospective uncontrolled multicenter study. During a 35-month period, 20 centers included 1000 ESDs of neoplastic lesions. The results were evaluated in terms of en bloc, R0, curative resection rates, and recurrence rate after a 3-month and 12-month follow-up. Additionally, participating centers were grouped into low-volume (≤20 ESDs/y), middle-volume (20-50/y), and high-volume centers (>50/y). A multivariate analysis investigating risk factors for noncurative resection was performed. RESULTS: Overall, en bloc, R0, and curative resection rates of 92.4% (95% confidence interval [CI], 0.90-0.94), 78.8% (95% CI, 0.76-0.81), and 72.3% (95% CI, 0.69-0.75) were achieved, respectively. The overall complication rate was 8.3% (95% CI, 0.067-0.102), whereas the recurrence rate after 12 months was 2.1%. High-volume centers had significantly higher en bloc, R0, curative resection rates, and recurrence rates and lower complication rates than middle- or low-volume centers. The lesion size, hybrid ESD, age, stage T1b carcinoma, and treatment outside high-volume centers were identified as risk factors for noncurative ESD. CONCLUSION: In Germany, ESD achieves excellent en bloc resection rates but only modest curative resection rates. ESD requires a high level of expertise, and results vary significantly depending on the center's yearly case volume.
Asunto(s)
Neoplasias Colorrectales/cirugía , Resección Endoscópica de la Mucosa , Neoplasias Esofágicas/cirugía , Neoplasias Gástricas/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Competencia Clínica , Neoplasias Colorrectales/economía , Neoplasias Colorrectales/patología , Resección Endoscópica de la Mucosa/efectos adversos , Resección Endoscópica de la Mucosa/economía , Resección Endoscópica de la Mucosa/tendencias , Neoplasias Esofágicas/economía , Neoplasias Esofágicas/patología , Femenino , Alemania , Costos de la Atención en Salud , Hospitales de Alto Volumen , Hospitales de Bajo Volumen , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Estadificación de Neoplasias , Estudios Prospectivos , Indicadores de Calidad de la Atención de Salud , Sistema de Registros , Medición de Riesgo , Factores de Riesgo , Neoplasias Gástricas/economía , Neoplasias Gástricas/patología , Factores de Tiempo , Resultado del TratamientoRESUMEN
OBJECTIVES: Angiodysplasia (AD) is a common source of gastrointestinal bleeding. Yet, little is known about factors forwarding bleeding in these vascular malformations. The presented study aims to determine risk factors for bleeding that occurs only in patients with symptomatic, but not with asymptomatic, AD. METHODS: Case-control study in patients with ADâand either a positive or a negative history of gastrointestinal bleeding in Munich, Germany. Groups were compared by clinical, laboratory, and endoscopic features. RESULTS: 80 patients with (58, f 31, med. age 72) or without bleeding ADâ(22, f 12, med. age 61) were included. Bleeding from ADâwas significantly associated with the total number of ADâ(OR 1.4 (95â% CI 1.1-1.7) pâ=â0.01) and closure time in PFA/collagen-epinephrine test (OR 1.0 (95â% CI 1.0-1.0) pâ<â0.01). The total number of ADâcorrelated significantly with age (râ=â0.36; pâ=â0.01). ADâwere mainly detected in the upper small intestine (>â30â%). Although patients with aortic stenosis suffered not significantly more frequently from bleeding from AD, they demonstrated a loss of high molecular multimers of VWF. CONCLUSIONS: The amount of ADâis clearly correlated to the age of the patient. A higher number of ADs and inhibition of primary hemostasis increase the risk of bleeding.