Oliver Schwandner

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PURPOSE The aim of this study was to assess the outcome of both laparoscopic suture rectopexy and resection-rectopexy in the treatment of complete and incomplete rectal prolapse, outlet obstruction, or both. METHODS Data from surgery were collected prospectively. Semiannual follow-up was performed by assessment of recurrence, continence, and constipation(More)
PURPOSE Stapled transanal rectal resection is advocated for the treatment of obstructed defecation syndrome. Supporting evidence for its safety and effectiveness has been lacking. To address this, the European Stapled Transanal Rectal Resection Registry was initiated in January 2006. This study was designed to analyze 12-month postoperative outcomes of this(More)
The aim of this prospective study was to compare the outcome of laparoscopic colorectal surgery in obese and nonobese patients. All patients who underwent laparoscopic surgery for both benign and malignant disease within the past 5 years were entered into the prospective database registry. Body mass index (BMI; kg/m2) was used as the objective measure to(More)
PURPOSE It has been proposed that laparoscopic colorectal surgery offers several benefits to patients. The aim of this study was to evaluate particularly whether older patients can benefit by laparoscopic colorectal procedures or if minimally invasive procedures are contraindicated. METHODS All patients who underwent elective surgery were divided into(More)
Background: Radical lymphadenectomy for colorectal cancer according to its arterial supply seems to remove potentially me-tastatic lymph nodes and highlights the impact on prognosis. Standards and controversies: Systematic lymph-node dissection in colorectal cancer requires knowledge of normal anatomy of lymphatic drainage and spreading of lymph-node(More)
Background: This study was performed to analyze the reasons for conversion of laparoscopic colorectal procedures to open surgery and to identify risk factors. Methods: All patients who underwent laparoscopic colorectal surgery at our institution were enrolled in a prospective trial. The causes of conversion were analyzed. Statistical analysis, including a(More)
INTRODUCTION Neo-angiogenesis, of great importance for tumour growth and nutrition, is preferentially mediated by the cytokine vascular endothelial growth factor (VEGF), which has a direct effect on vascular endothelial cell proliferation and migration. This study was designed to clarify whether VEGF is a suitable tumour marker in sera of patients with a(More)
PURPOSE The aim of this study was to assess the feasibility and safety of laparoscopic surgery for the cure of colorectal cancer with emphasis on oncologic follow-up in particular. METHODS A study was performed of patients with colorectal cancer treated by laparoscopy in five German centers between May 1991 and September 1997. Surgical and pathologic data(More)
Internal rectal prolapse (rectal intussusception) and rectocele are frequent clinical findings in patients suffering from refractory constipation that may be best characterized as obstructive defecation syndrome. However, there is still no clear evidence whether the stapled transanal rectal resection (STARR) procedure provides a safe and effective surgical(More)
OBJECTIVE The aim of this study was to assess the feasibility and outcome of 300 laparoscopic colorectal procedures performed within 5 years for both benign and malignant disorders. The specific purpose was to identify the impact of the learning curve on reducing morbidity and on improving the outcome of laparoscopic colorectal surgery. PATIENTS AND(More)