Eelco J. R. de Graaf

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BACKGROUND It is well known that web-based interventions can be effective treatments for depression. However, dropout rates in web-based interventions are typically high, especially in self-guided web-based interventions. Rigorous empirical evidence regarding factors influencing dropout in self-guided web-based interventions is lacking due to small study(More)
A and Hartmann's procedure or resection with primary anastomosis for purulent or faecal peritonitis B in perforated diverticulitis (NTR2037) Abstract Background: Recently, excellent results are reported on laparoscopic lavage in patients with purulent perforated diverticulitis as an alternative for sigmoidectomy and ostomy. The objective of this study is to(More)
BACKGROUND Accurate staging of rectal tumors is essential for making the correct treatment choice. In a previous study, we found that loss of 17p, 18q and gain of 8q, 13q and 20q could distinguish adenoma from carcinoma tissue and that gain of 1q was related to lymph node metastasis. In order to find markers for tumor staging, we searched for candidate(More)
Dear Editor, In the Netherlands, the standard treatment for T2–3 rectal cancer is a short-course preoperative radiotherapy (5×5 Gy) followed by total mesorectal excision (TME). The Dutch TME trial proved that the addition of preoperative radiotherapy to surgery decreased the 5-year local recurrence rate from 11% to 6%. For patients with locally advanced(More)
INTRODUCTION Transanal endoscopic microsurgery (TEM) is a minimal invasive technique for local excision of rectal tumours. The procedure is performed via a rectoscope with a diametre of 4 cm. The aim of this prospective study was to assess both functional outcome and quality of life after TEM. PATIENTS AND METHODS Between 2004 and 2006, 47 patients were(More)
BACKGROUND The CARTS study is a multicenter feasibility study, investigating the role of rectum saving surgery for distal rectal cancer. METHODS/DESIGN Patients with a clinical T1-3 N0 M0 rectal adenocarcinoma below 10 cm from the anal verge will receive neoadjuvant chemoradiation therapy (25 fractions of 2 Gy with concurrent capecitabine). Transanal(More)
PURPOSE Both "high tie" (HT) and "low tie" (LT) are well-known strategies in rectal surgery. The aim of this study was to compare colonic perfusion after HT to colonic perfusion after LT. METHODS Patients undergoing rectal resection for malignancy were included. Colonic perfusion was measured with laser Doppler flowmetry, immediately after laparotomy on(More)
OBJECTIVE The aim of this study was to review the results and long-term outcome after total mesorectal excision (TME) for adenocarcinoma of the rectum in an unselected population in a community teaching hospital. MATERIALS AND METHODS Between 1996 and 2003, 210 patients with rectal cancer were identified in our prospective database, containing patient(More)
BACKGROUND Primary perineal wound closure after conventional abdominoperineal resection (cAPR) for rectal cancer has been the standard of care for many years. Since the introduction of neo-adjuvant radiotherapy and the extralevator APR (eAPR), oncological outcome has been improved, but at the cost of increased rates of perineal wound healing problems and(More)
BACKGROUND Previous research indicates that application of 5-mm harmonic shears rather than diathermia significantly reduces operation time in transanal endoscopic microsurgery (TEM). Frequently, however, additional instruments were required to complete resection. We investigated whether the new 5-mm harmonic long shears (H-LS) are better equipped for TEM(More)