title: [Transanal endoscopic operations for rectal tumours].
abstract: BACKGROUND
  Transanal endoscopic operation (TEO) may be the technique of choice for the treatment of rectal lesions, both benign and selected malignant lesions, with similar survival rates to conventional surgery but with lower morbidity.
  
  
  METHODS
  In this article we present a series of 70 patients operated on with this procedure (TEO) in our center. The indications were benign rectal lesions and malignant lesions at early stages (T1) 86%. The surgical procedure was performed with the the transanal endoscopic operation platform (TEO; Karl Storz, Tüttlingen, Germany) and ultrasonic scalpel (Harmonic scalpel, Ethicon Endo-surgery,…).
  
  
  RESULTS
  The indication in 43 patients was a benign lesion (adenoma), in the other 27 the diagnosis was adenocarcinoma. After the resection, 61% of the series had a malignant lesion in the pathology report: 13 patients of the 43 with a benign lesion initially had a malignant lesion in the pathology report. Postoperative morbidity was 36%, Clavien III (5,7%). 3 patients (4%) needed emergency surgery. All of the benign lesions were completely excised, but 7 malignant lesions had resection margin involvement The median follow-up time was 26,4 months (range, 1-71 months), the overall recurrence for benign tumors was 9%, 8% for malignant pT1 and 12,5% for malignant pT2. Early salvage surgery was performed on 8 patients.
  
  
  CONCLUSIONS
  TEO allows us to excise benign rectal lesions that could not be excised with a conventional approach (endoscopic or transanal resection) with a low morbidity rate. TEO can be used for malignant rectal tumors in early stages (pT1) with pathological confirmation.
authors.affiliation: Servicio de Cirugía General, Hospital Universitario Marqués de Valdecilla, Santander, España.
authors.forename: Carlos
authors.initials: C
authors.lastname: Gavilanes Calvo
authors.affiliation: Unidad Colorrectal, Servicio de Cirugía General, Hospital Universitario Marqués de Valdecilla, Santander, España. Electronic address: jcpalazuelos@gmail.com.
authors.forename: José Carlos
authors.initials: JC
authors.lastname: Manuel Palazuelos
authors.affiliation: Unidad Colorrectal, Servicio de Cirugía General, Hospital Universitario Marqués de Valdecilla, Santander, España.
authors.forename: Joaquín
authors.initials: J
authors.lastname: Alonso Martín
authors.affiliation: Unidad Colorrectal, Servicio de Cirugía General, Hospital Universitario Marqués de Valdecilla, Santander, España.
authors.forename: Julio
authors.initials: J
authors.lastname: Castillo Diego
authors.affiliation: Unidad Colorrectal, Servicio de Cirugía General, Hospital Universitario Marqués de Valdecilla, Santander, España.
authors.forename: Ignacio
authors.initials: I
authors.lastname: Martín Parra
authors.affiliation: Unidad Colorrectal, Servicio de Cirugía General, Hospital Universitario Marqués de Valdecilla, Santander, España.
authors.forename: Marcos
authors.initials: M
authors.lastname: Gómez Ruiz
authors.affiliation: Unidad Colorrectal, Servicio de Cirugía General, Hospital Universitario Marqués de Valdecilla, Santander, España; Cátedra de Cirugía General, Universidad de Cantabria, Santander, España.
authors.forename: Manuel
authors.initials: M
authors.lastname: Gómez Fleitas
mesh_terms: D000230:Adenocarcinoma / Q000601:surgery*; D000236:Adenoma / Q000601:surgery*; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011351:Proctoscopy; D012004:Rectal Neoplasms / Q000601:surgery*
keywords: Adenocarcinoma rectal; Adenomas rectales; Cirugía endoscópica transanal; Rectal adenocarcinoma; Rectal adenomas; Transanal endoscopic surgery