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궤양성 대장염 환자에서 시행되는 회장낭 수술에 대한 이견
유창식 대한대장항문학회 2009 Annals of Coloproctolgy Vol.25 No.3
Restorative proctocolectomy (RPC) has become a standard procedure over 30 yr in patients with ulcerative colitis and familial adenomatous polyposis. However, there are several controversies in surgical method and strategy. From oncological point of view, mucosal proctectomy and hand-sewn ileal pouch anal anastomosis has advantage because of relatively complete removal of columnar epithelium. However, long-term follow-up results after stapled anastomosis revealed extremely low incidence of dysplasia in the anal transitional zone (ATZ). Furthermore, recent publication of 26 cancer occurrence after RPC showed more prevalence in mucosectomy group. Risk factors of dysplasia after RPC are supervening cancer or dysplasia on the proximal colon, long duration of symptom, and history of primary sclerosing cholangitis. Preservation of ATZ by stapled anastomosis may have functional superiority, which is supported by some manometric and functional studies. However, two randomized controlled trials showed no difference between the groups. Although there are some surgeons who advocate one stage RPC, majority of centers prefer two stage RPC with ileostomy. According to meta-analysis one stage RPC revealed 2-3 times frequent anastomotic leakage or pelvic sepsis. Five to ten percent of ulcerative colitis has some pathologic characteristics of Crohn’s disease, which is classified as indeterminate colitis (IC). Long-term results of RPC in patients with IC revealed similar results with ulcerative colitis and superior to Crohn’s disease. So RPC may be justified in patients with IC. Conclusively, RPC should be tailored according to clinicopathologic details and operative findings. Restorative proctocolectomy (RPC) has become a standard procedure over 30 yr in patients with ulcerative colitis and familial adenomatous polyposis. However, there are several controversies in surgical method and strategy. From oncological point of view, mucosal proctectomy and hand-sewn ileal pouch anal anastomosis has advantage because of relatively complete removal of columnar epithelium. However, long-term follow-up results after stapled anastomosis revealed extremely low incidence of dysplasia in the anal transitional zone (ATZ). Furthermore, recent publication of 26 cancer occurrence after RPC showed more prevalence in mucosectomy group. Risk factors of dysplasia after RPC are supervening cancer or dysplasia on the proximal colon, long duration of symptom, and history of primary sclerosing cholangitis. Preservation of ATZ by stapled anastomosis may have functional superiority, which is supported by some manometric and functional studies. However, two randomized controlled trials showed no difference between the groups. Although there are some surgeons who advocate one stage RPC, majority of centers prefer two stage RPC with ileostomy. According to meta-analysis one stage RPC revealed 2-3 times frequent anastomotic leakage or pelvic sepsis. Five to ten percent of ulcerative colitis has some pathologic characteristics of Crohn’s disease, which is classified as indeterminate colitis (IC). Long-term results of RPC in patients with IC revealed similar results with ulcerative colitis and superior to Crohn’s disease. So RPC may be justified in patients with IC. Conclusively, RPC should be tailored according to clinicopathologic details and operative findings.
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폐쇄성 대장암에서 스텐트 삽입 후 시행한 대장절제술의 단기예후: 비 폐쇄성 대장암군과의 비교
장연수,김성래,최성일,주선형,이석환 대한대장항문학회 2009 Annals of Coloproctolgy Vol.25 No.1
Purpose: Recently, a self-expandable metallic stent has allowed an elective single-stage resection avoiding the risk of emergency operation and stoma formation in patients with obstructive colorectal cancer (CRC). But, forceful expansion of stent may increase the possibility of tumor cell exfoliation and dissemination through bowel lumen, lymphatic and blood vessels. Aim of study is to evaluate the short-term outcome of curative resection for obstructive colorectal cancer followed by stent in terms of oncologic safety. Methods: Twenty-seven patients who underwent curative resection for obstructive CRC followed by stent insertion were included in ‘stent group’ and control group included 87 patients who underwent surgery for non-obstructive CRC. The clinicopathologic characteristics and prognosis were compared between two groups. Results: There was no significant difference in clinicopathologic characteristics between two groups. No difference was found in postoperative complications between two groups. Overall survival rate of two groups showed no statistically significant differences (P=0.1254). Stage-matched survival rates (stage II & III) were also showed no differences between two groups. Conclusion: Stent insertion itself does not compromise the survival of patients with obstructive CRC. Oncologic safety of stent insertion for obstructive CRC is acceptable. A further large-scaled prospective study and long-term follow-up is necessary to evaluate the oncologic safety of stent insertion in obstructive CRC. Purpose: Recently, a self-expandable metallic stent has allowed an elective single-stage resection avoiding the risk of emergency operation and stoma formation in patients with obstructive colorectal cancer (CRC). But, forceful expansion of stent may increase the possibility of tumor cell exfoliation and dissemination through bowel lumen, lymphatic and blood vessels. Aim of study is to evaluate the short-term outcome of curative resection for obstructive colorectal cancer followed by stent in terms of oncologic safety. Methods: Twenty-seven patients who underwent curative resection for obstructive CRC followed by stent insertion were included in ‘stent group’ and control group included 87 patients who underwent surgery for non-obstructive CRC. The clinicopathologic characteristics and prognosis were compared between two groups. Results: There was no significant difference in clinicopathologic characteristics between two groups. No difference was found in postoperative complications between two groups. Overall survival rate of two groups showed no statistically significant differences (P=0.1254). Stage-matched survival rates (stage II & III) were also showed no differences between two groups. Conclusion: Stent insertion itself does not compromise the survival of patients with obstructive CRC. Oncologic safety of stent insertion for obstructive CRC is acceptable. A further large-scaled prospective study and long-term follow-up is necessary to evaluate the oncologic safety of stent insertion in obstructive CRC.
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