Annals of Coloproctology

Original Articles

Malignant disease,Prognosis and adjuvant therapy,Colorectal cancer

Comparison of the oncological outcomes of stenting as a bridge to surgery and surgery alone in stages II to III obstructive colorectal cancer: a retrospective study: Hiroaki Uehara, Toshiyuki Yamazaki, Akira Iwaya, Hitoshi Kameyama, Masaru Komatsu, Motoharu Hirai; Ann Coloproctol. 2022;38(3):235-243. Published online July 13, 2021; DOI: https://doi.org/10.3393/ac.2020.01067.0152

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Purpose
We evaluated the oncological outcomes of bridge to surgery (BTS) using stent compared with surgery alone for obstructive colorectal cancer.
Methods
Consecutive patients who underwent curative resection for stages II to III obstructive colorectal cancer at our institution from January 2009 to March 2020, were registered retrospectively and divided into 43 patients in the BTS group and 65 patients in the surgery alone group. We compared the surgical and oncological outcomes between the 2 groups.
Results
Stent-related perforation did not occur. One patient in whom the stent placement was unsuccessful underwent emergency surgery with poor decompression (clinical success rate, 97.7%). The pathological characteristics were not significantly different between the groups. The following surgical outcomes in the BTS group were superior to those in the surgery alone group; nonemergency surgery (P<0.001), surgical approach (P=0.006), and length of hospital stay (P=0.020). The median follow-up time was 44.9 months (range, 1.1–126.5 months). The 3-year relapse-free survival rates were 68.4% and 58.2% (P=0.411), and the overall survival rates were 78.3% and 88.2% (P=0.255) in the surgery alone and BTS groups, respectively. The 3-year locoregional recurrence rates were 10.2% and 8.0% (P=0.948), and distant metastatic recurrence rates were 13.3% and 30.4% (P=0.035) in the surgery alone and BTS groups, respectively.
Conclusion
This study revealed that BTS with stent may be associated with a higher frequency of distant metastatic recurrence. Stent for stages II to III obstructive colorectal cancer potentially worsens oncological outcomes.

Citations

Citations to this article as recorded by

Controversial issues of colon stenting in case of tumor obstructive intestinal obstruction: surgical and oncological aspects
S.A. Aliyev, E.S. Aliyev, T.K. Aliyev
Endoscopic Surgery.2025; 31(2): 65. CrossRef
Transforming outcomes: the pivotal role of self-expanding metal stents in right- and left-sided malignant colorectal obstructions-bridge to surgery: a comprehensive review and meta-analysis
Sheza Malik, Priyadarshini Loganathan, Hajra Khan, Abul Hasan Shadali, Pradeep Yarra, Saurabh Chandan, Babu P. Mohan, Douglas G. Adler, Shivangi Kothari
Clinical Endoscopy.2025; 58(2): 240. CrossRef
A rare case of massive colonic distention secondary to undiagnosed colon adenocarcinoma
Chloe Lahoud, Toni Habib, Michel Al Achkar, Tyler Grantham, Nissar Ahmed
Medical Reports.2025; 12: 100207. CrossRef
Complete Obstruction, a Real Risk Factor: A Comprehensive Study on Obstruction in Stage IIA Colon Cancer With Propensity Score Matching Analysis
Soo Young Oh, Chan Wook Kim, Seonok Kim, Min Hyun Kim, Young Il Kim, Jong Lyul Lee, Yong Sik Yoon, In Ja Park, Seok-Byung Lim, Chang Sik Yu
Clinical Colorectal Cancer.2024; 23(2): 135. CrossRef
Can we use colon stenting in accelerated recovery programs for surgical treatment colon cancer complicated by obstructive intestinal obstruction? A literature review
Saday A. Aliyev, Emil S. Aliyev
Russian Journal of Oncology.2024; 29(2): 130. CrossRef
Oncologic impact of colonic stents for obstructive left-sided colon cancer
Hideyuki Suzuki, Shingo Tsujinaka, Yoshihiro Sato, Tomoya Miura, Chikashi Shibata
World Journal of Clinical Oncology.2023; 14(1): 1. CrossRef
5-year oncological outcomes in left-sided malignant colonic obstruction: stent as bridge to surgery
Noura S Alhassan, Sulaiman A AlShammari, Razan N AlRabah, Amirah M AlZahrani, Maha-Hamadien Abdulla, Thamer A Bin Traiki, Ahmad M Zubaidi, Omar A Al-Obeed, Khayal A Alkhayal
BMC Gastroenterology.2023;[Epub] CrossRef
Impact of Postoperative Naples Prognostic Score to Predict Survival in Patients with Stage II–III Colorectal Cancer
Su Hyeong Park, Hye Seung Woo, In Kyung Hong, Eun Jung Park
Cancers.2023; 15(20): 5098. CrossRef
Do Laparoscopic Approaches Ensure Oncological Safety and Prognosis for Serosa-Exposed Colon Cancer? A Comparative Study against the Open Approach
Ji-Hyun Seo, In-Ja Park
Cancers.2023; 15(21): 5211. CrossRef
Recurrence Patterns and Risk Factors after Curative Resection for Colorectal Cancer: Insights for Postoperative Surveillance Strategies
Hyo Seon Ryu, Jin Kim, Ye Ryung Park, Eun Hae Cho, Jeong Min Choo, Ji-Seon Kim, Se-Jin Baek, Jung-Myun Kwak
Cancers.2023; 15(24): 5791. CrossRef
Colonic stent for bridge to surgery for acute left-sided malignant colonic obstruction: A review of the literature after 2020
Margherita Binetti, Augusto Lauro, Valeria Tonini
World Journal of Clinical Oncology.2022; 13(12): 957. CrossRef

Laparoscopic Colorectal Resection after Endoscopic Stent Insertion in Cases of Malignant Colorectal Obstruction: the Experience of a Single Center.: Yi, Jung Im , Lee, In Kyu , Kang, Won Kyoung , Cho, Hyun Min , Park, Jong Kyoung , Oh, Seung Taek , Kim, Jun Gi , Kim, Byoung Uk , Lee, Bo In , Lee, Yoon Suk; J Korean Soc Coloproctol. 2009;25(3):172-177.; DOI: https://doi.org/10.3393/jksc.2009.25.3.172

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Abstract PDF: PURPOSE
Laparoscopic surgery has been considered to be contraindicated for obstructive colorectal cancer. However, endoscopic stent insertion for obstructive colorectal cancer has recently allowed elective laparoscopic surgery. The aim of this study is to evaluate the feasibility and the short-term clinical outcomes of laparoscopic surgery following endoscopic stent insertion for management of malignant colorectal obstruction at a single center.
METHODS
The medical records of patients who had undergone endoscopic stent insertion for colorectal cancer obstruction, followed by laparoscopic colorectal resections, from August 2004 to August 2008 were reviewed. To evaluate the surgical and clinical outcomes, we analyzed the clinical and pathologic data.
RESULTS
Thirty-six endoscopic stent insertions were successfully performed during the study period. Of those 36, the 28 treated by laparoscopic surgery were enrolled in this study. The mean interval between stent insertion and surgery was 7.4+/-2.3 days. Two cases were converted to open surgery. The mean operative time was 185.5+/-53.1 min, and the mean blood loss was 77.0+/-72.9 mL. Flatus was passed on the mean 2nd postoperative day, and patients started to eat on the mean 4th postoperative day. The mean postoperative hospital stay was 11.2+/-4.4 days. Anastomosis leakages occurred in two cases and were treated by a secondary operation with a transient ileostomy. There were morbidities in five cases, but no mortalities.
CONCLUSION
A combined endoscopic stent insertion and laparoscopic surgery is an effective and safe, minimally invasive operation for malignant colorectal obstruction.

Short-term Oncologic Outcome of Curative Resection for Obstructive Colorectal Cancer Followed by Stent Insertion: Comparative Study with Non-abstructive Colorectal Cancer.: Chang, Yeon Soo , Kim, Seong Rae , Choi, Sung Il , Joo, Sun Hyung , Lee, Suk Hwan; J Korean Soc Coloproctol. 2009;25(1):41-45.; DOI: https://doi.org/10.3393/jksc.2009.25.1.41

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2 Citations

Abstract PDF

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.

Citations

Citations to this article as recorded by

Comparison of short-term outcomes after elective surgery following endoscopic stent insertion and emergency surgery for obstructive colorectal cancer
Gil Jae Lee, Hyo Jun Kim, Jeong-Heum Baek, Won-Suk Lee, Kwang An Kwon
International Journal of Surgery.2013; 11(6): 442. CrossRef
Short-Term Outcome of Curative One-Stage Laparoscopic Resection for Obstructive Left-Sided Colon Cancers Followed by Stent Insertion: Comparative Study with Non-Obstructive Left-Sided Colon Cancers
Hyun Sil Kim, Sung Geun Kim, Chang Hyuk Ahn, Won Kyung Kang, Yun Seok Lee, In Kyu Lee, Hyung-Jin Kim, Sang Cheol Lee, Hyeon Min Cho, Jong Kyung Park, Seong Taek Oh, Jun-Gi Kim
Journal of the Korean Society of Coloproctology.2009; 25(6): 417. CrossRef

Oncological Safety of Flexible Rectal Stent Insertion in Obstructive Colorectal Cancer: Short Term Result.: Kim, Jong Hyun , Lee, Doo Seok , Choi, Sung Il , Lee, Woo Yong , Choo, Sung Wook , Do, Young Soo , Chun, Ho Kyung; J Korean Soc Coloproctol. 2002;18(6):397-401.

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Abstract PDF: PURPOSE
Flexible rectal stent for obstructive colorectal cancer has an advantage of elective one stage operation after decompression. But, forceful expansion of stent may increase the possibility of tumor cell dissemination through lymph nodes and blood vessels. We studied the oncological safety of stent insertion in obstructive colorectal cancer.
METHODS
From June 1996 to August 2001, the patients with stent insertion for obstructive colorectal cancer at Samsung Medical Center were retrospectively evaluated. Seventy- one patients had stent insertion for palliation or curative resection. Among these patients 15 patients underwent curative surgery after stent insertion (stent group). During the same period 25 patients underwent multi-staged operation after the decompressing colostomy or Hartman operation. (staged operation group). Statistical methods such as Fisher's exact test, 2-test, Kaplan-Meier method were used.
RESULTS
There was no significant difference between two groups in terms of age, gender, tumor location, and stage. The median follow-up period was 21 months in stent insertion group and 29 months in staged operation group. Overall recurrence rate was 33.3% in stent insertion group and 32.0% in staged operation group. The 5-year survival rate in stent insertion group was higher than in staged operation group (75.8% vs. 48.3%). But there was no statistical significance (P>0.05 ). Disease free survival was 22.4 (6~51) months in stent insertion group and 27.8 (5~71) months in staged operation group. There was no significant difference either.
CONCLUSIONS
There was no significant difference between two groups in survival rate, recurrence rate in short term result. Flexible rectal stent insertion can be considered as oncologically safe and useful treatment of obstructive colorectal cancer. But we think long term follow up and much more cases will be necessary to make a conclusion more definitively.

Case Report

The Conservative Treatment of Rectal Perforation after Insertion of A Stent and Chemo-Radiotherephy in the Patient with Obstructive Rectal Cancer.: Jung, Jai Hun , Kim, Seog Mo , Kim, Cheong Yong , Ko, Kang Seog; J Korean Soc Coloproctol. 2000;16(1):41-46.

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Abstract PDF: The use of self-expanding metal stent has been widely reported that its utility can make a palliative decompression treatment and one stage operation without doing colostomy in the patient with unresectable and resectable obstructive colorectal cancer, respectively. It, however, can sometimes cause complications such as intestinal perforation. We report that the conservative treantment could be possible without removing stent or performing laparotomy in case of intestinal perforation during chemoradiotheraphy after insert of stent for relieving colonic obstruction in the 53 years old female patient with stage IV rectal cancer.

Original Article

Treatment of Obstructive Colorectal Cancer.: Lee, Dong Hee , Lee, In Taek , Chung, Bong Soo , Jeong, Choon Sik , Kim, Chang Nam , Yu, Chang Sik , Kim, Jin Cheon; J Korean Soc Coloproctol. 1998;14(4):751-760.

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Abstract PDF: The occurrence of the colonic obstruction secondary to colorectal carcinoma (CRC) has been reported in 7~30% of the CRC patients. It is generally believed that obstructive CRC is associated with a poor prognosis with respect to operative mortality and five-year survival. A series of 1064 cases of the CRC treated surgically at Asan Medical Center from June 1989 to December 1996 has been analyzed to compare clinicopathological findings between obstructive and non-obstructive CRC and to evaluate surgical treatment options in obstructive CRC. Complete obstruction was present in 49 cases (4.6%). There were no differences between obstructive and non-obstructive CRC in tumor location, size, Dukes' stage, and differentiation. In forty-nine obstructive CRC cases, primary resections were performed in 29 cases after peri-operative bowel decompression. In this group, right colon cancer was more prevalent than staged operation group (45% vs. 5%, P<0.05) and hospital stay was significantly short (16 days vs. 38 days, P<0.05). Postoperative complication rate was higher in staged operation group (65% vs. 28%, P=0.01). It may be due to stoma related wound complication. In obstructive left colon cancer, there was a significant difference in complication rate between primary resection and staged operation (P<0.05). Overall 5-year survival rate were 66% and 53% in non-obstructive and obstructive group, respectively. Survival rate according to the Dukes' B and C stages did not show statistical differences, either. Conclusively, primary resection is preferred to the obstructive CRC when supportive care, preoperative bowel decompression, and intraoperative colonic irrigation were performed adequately.

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