Milan Spasojevic1, Anthony B Mariathasan2, Mariusz Goscinski2, Ebbe B Thorgersen2, Arne M Solbakken2, Hans-Petter Gullestad3, Truls Ryder3, Kjersti Flatmark2,4,5, Stein G Larsen2. 1. Department of Gastroenterological Surgery, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway. milspa@ous-hf.no. 2. Department of Gastroenterological Surgery, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway. 3. Department of Plastic Surgery, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway. 4. Department of Tumor Biology, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway. 5. Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
Abstract
BACKGROUND: Radiotherapy (RT) and subsequent abdominoperineal resection (APR) for locally advanced rectal cancer (LARC) is associated with significant perineal wound morbidity. The aim of the present study was to investigate if vertical rectus abdominis musculocutaneous (VRAM) flap repair after APR in LARC patients improves perineal wound healing compared with direct perineal wound closure (non-VRAM). METHODS: LARC patients (n = 329) operated with APR between January 2006 and December 2015 after neoadjuvant RT of ≥ 25 Gy were identified, including 260 and 69 patients in the non-VRAM and VRAM groups, respectively. Perineal wound healing was assessed 3 months postoperatively, and risk factors for perineal wound complications and associations with short- and long-term outcome were analyzed. RESULTS: Delayed perineal wound healing after 3 months was more frequent in the non-VRAM group (31.5%) compared with the VRAM group (10.4%) (p < 0.01). In the non-VRAM group, 26.9% of patients developed pelvic abscess, compared with 10.1% in the VRAM group (p < 0.01). Significant risk factors for perineal wound morbidity were non-VRAM (odds ratio [OR] 3.94, 95% confidence interval [CI] 1.72-9.00; p = 0.02), positive circumferential resection margin (R1; OR 3.64, 95% CI 1.91-6.93; p < 0.01), pelvic abscess (OR 3.27, 95% CI 1.90-5.63; p < 0.01), and short-course RT (OR 3.81, 95% CI 1.75-8.30; p < 0.01). Perineal wound morbidity was not associated with impaired long-term oncologic outcome. CONCLUSIONS: VRAM flap reconstruction of the perineum is associated with an increased wound healing rate and may protect against pelvic abscess development. However, procedure-related long-term morbidity is incompletely studied and the procedure should be reserved for selected patients.
BACKGROUND: Radiotherapy (RT) and subsequent abdominoperineal resection (APR) for locally advanced rectal cancer (LARC) is associated with significant perineal wound morbidity. The aim of the present study was to investigate if vertical rectus abdominis musculocutaneous (VRAM) flap repair after APR in LARC patients improves perineal wound healing compared with direct perineal wound closure (non-VRAM). METHODS: LARC patients (n = 329) operated with APR between January 2006 and December 2015 after neoadjuvant RT of ≥ 25 Gy were identified, including 260 and 69 patients in the non-VRAM and VRAM groups, respectively. Perineal wound healing was assessed 3 months postoperatively, and risk factors for perineal wound complications and associations with short- and long-term outcome were analyzed. RESULTS: Delayed perineal wound healing after 3 months was more frequent in the non-VRAM group (31.5%) compared with the VRAM group (10.4%) (p < 0.01). In the non-VRAM group, 26.9% of patients developed pelvic abscess, compared with 10.1% in the VRAM group (p < 0.01). Significant risk factors for perineal wound morbidity were non-VRAM (odds ratio [OR] 3.94, 95% confidence interval [CI] 1.72-9.00; p = 0.02), positive circumferential resection margin (R1; OR 3.64, 95% CI 1.91-6.93; p < 0.01), pelvic abscess (OR 3.27, 95% CI 1.90-5.63; p < 0.01), and short-course RT (OR 3.81, 95% CI 1.75-8.30; p < 0.01). Perineal wound morbidity was not associated with impaired long-term oncologic outcome. CONCLUSIONS:VRAMflap reconstruction of the perineum is associated with an increased wound healing rate and may protect against pelvic abscess development. However, procedure-related long-term morbidity is incompletely studied and the procedure should be reserved for selected patients.
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