scholarly journals Retrospective study of the functional and oncological outcomes of conformal sphincter preservation operation in the treatment of very low rectal cancer

2020 ◽  
Vol 24 (10) ◽  
pp. 1025-1034 ◽  
Author(s):  
G. Sun ◽  
Z. Lou ◽  
H. Zhang ◽  
G. Y. Yu ◽  
K. Zheng ◽  
...  
Keyword(s):  
Rectal Cancer ◽  
Rectal Wall ◽  
Anal Verge ◽  
Disease Free Survival ◽  
Sphincter Preservation ◽  
Low Rectal Cancer ◽  
Anal Function ◽  
Oncological Outcomes ◽  
Rectal Cancers ◽  
Very Low Rectal Cancer

Abstract Background Conformal sphincter preservation operation (CSPO) is a new surgical procedure for very low rectal cancers (within 4–5 cm from the anal verge). CSPO preserves more of the dentate line and distal rectal wall and also avoids injuring nerves in the intersphincteric space, resulting in satisfactory anal function after resection. The aim of this study was to analyze the short-term surgical results and long-term oncological and functional outcomes of CSPO. Methods Consecutive patients with very low rectal cancer, who had CSPO between January 2011 and October 2018 at Changhai Hospital, Shanghai were included. Patient demographics, clinicopathological features, oncological outcomes and anal function were analyzed. Results A total of 102 patients (67 men) with a mean age of 56.9 ± 10.8 years were included. The median distance of the tumor from the anal verge was 3 (IQR, 3–4) cm. Thirty-five patients received neoadjuvant chemoradiation (nCRT). The median distal resection margin (DRM) was 0.5 (IQR, 0.3–0.8) cm. One patient had a positive DRM. All circumferential margins were negative. There was no perioperative mortality. The postoperative complication rate was 19.6%. The median duration of follow-up was 28 (IQR, 12–45.5) months. The local recurrence rate was 2% and distant metastasis rate was 10.8%. The 3-year overall survival and disease-free survival rates were 100% and 83.9%, respectively. The mean Wexner incontinence and low anterior resection syndrome scores 12 months after ileostomy reversal were 5.9 ± 4.3, and 29.2 ± 6.9, respectively. Conclusions For patients with very low rectal cancers, fecal continence can be preserved with CSPO without compromising oncological results.

scholarly journals The Safety and Feasibility of Laparoscopic Surgery for Very Low Rectal Cancer: A Retrospective Analysis Based on a Single Center’s Experience

Biomedicines ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 1720
Author(s):  
Hyuk-Jun Chung ◽  
Jun-Gi Kim ◽  
Hyung-Jin Kim ◽  
Hyeon-Min Cho ◽  
Bong-Hyeon Kye
Keyword(s):  
Rectal Cancer ◽  
Anal Verge ◽  
Disease Free Survival ◽  
Low Rectal Cancer ◽  
Oncologic Outcomes ◽  
Morbidity Rate ◽  
Rectal Cancer Surgery ◽  
Laparoscopic Procedures ◽  
Very Low Rectal Cancer

In this work we intend to validate the long-term oncologic outcomes for very low rectal cancer over the past 20 years and to determine whether laparoscopic procedures are useful options for very low rectal cancer. A total of 327 patients, who electively underwent laparoscopic rectal cancer surgery for a lesion within 5 cm from the anal verge, were enrolled in this study and their long-term outcomes were reviewed retrospectively. Of 327 patients, 70 patients underwent laparoscopic low anterior resection (LAR), 164 underwent laparoscopic abdominal transanal proctosigmoidocolectomy with coloanal anastomosis (LATA), and 93 underwent laparoscopic abdominoperineal resection (APR). The conversion rate was 1.22% (4/327). The overall postoperative morbidity rate was 26.30% (86/327). The 5-year disease free survival (DFS), 5-year overall survival (OS), and 3-year local recurrence (LR) were 64.3%, 79.7%, and 9.2%, respectively. The CRM involvement was a significant independent factor for DFS (p = 0.018) and OS (p = 0.042) in multivariate analysis. Laparoscopic APR showed poorer 5-year DFS (47.8%), 5-year OS (64.0%), and 3-year LR (17.6%) than laparoscopic LAR (74.1%, 86.4%, 1.9%) and laparoscopic LATA (69.2%, 83.6%, 9.2%). Laparoscopic procedures for very low rectal cancer including LAR, LATA, and APR could be good surgical options in selective patients with very low rectal cancer.

scholarly journals ISR for T1-2 Low Rectal Cancer: A Japanese Approach

2020 ◽  
Vol 33 (06) ◽  
pp. 361-365
Author(s):  
Masaaki Ito
Keyword(s):  
Rectal Cancer ◽  
Local Recurrence ◽  
Recurrence Rate ◽  
Phase Ii ◽  
Local Recurrence Rate ◽  
Anal Verge ◽  
Low Rectal Cancer ◽  
Rectal Cancer Surgery ◽  
Rectal Cancers ◽  
Anal Preservation

AbstractThe evolution over the past 20 years of anal preservation in rectal cancer surgery has been truly remarkable. Intersphincteric resection (ISR) reported by Schiessel in 1994 in Australia has been shown to enable anal preservation even for cancers quite close to the anus. In Japan, ISR via the detachment of the anal canal between the internal and external sphincters and excision of the internal sphincter first began to be practiced in the latter half of 1990. A multicenter Phase II trial of ISR in Japan suggested that 70% of the cases had relatively good function with less than 10 points of Wexner score but around 10% had severe incontinence that would not be improved for long term. The primary end point of the clinical study, 3-year local recurrence rate, was 13.2% across the overall cohort (T1, 0%; T2, 6.9%; and T3, 21.6%). When ISR is performed on T1/T2 rectal cancers, sufficient circumferential resection margin can be obtained even without preoperative chemoradiotherapy, and local recurrence rate was acceptably low. Based on these evidences, ISR is a currently important, standard treatment option among anal-preserving surgeries for T1/T2 low-lying rectal cancers. In Japan, a feasibility study (LapRC trial) of laparoscopic ISR on Stage 0 and Stage 1 low rectal cancer showed excellent outcomes. A prospective Phase II clinical trial targeting low rectal cancers within 5 cm from the anal verge (ultimate trial) is being performed and awaiting the results in near future.

Extended intersphincteric resection with quadrant resection of external sphincter after neoadjuvant mid-course chemoradiotherapy in the very low rectal cancer.

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e14181-e14181
Author(s):  
Nahmgun Oh ◽  
Sanghwa Ko ◽  
Hyunsung Kim
Keyword(s):  
Rectal Cancer ◽  
Anal Verge ◽  
External Sphincter ◽  
Postoperative Mortality ◽  
Intersphincteric Resection ◽  
Low Rectal Cancer ◽  
Pelvic Cavity ◽  
Group I ◽  
Very Low Rectal Cancer ◽  
The Mean

e14181 Background: To evaluate the results of extended intersphincteric resection of T3 rectal cancer situated below 4cm from the anal verge, comparing the results of simple intersphincteric resection of T2 rectal cancer after mid-course chemoradiotherapy. Methods: Between 2000 Between 2000 and 2006, 67 patients with rectal cancer below 4cm from anal verge, underwent abdomino-intersphincteric resection reconstructed by inversion proctoplasty with a colonic J-pouch and diverting ileostomy. All patients received a total irradiation dose of 30 Gy with conventional fractions for 3 weeks. Capecitabine was administered 1000mg/m2 twice a day on 21 days during radiotherapy, followed curative surgery in a week without resting period. After preoperative radio-chemotherapy, patients with overt T2 lesion were 27 cases (40.3%) and received intersphincteric resection (Group I: simple intersphincteric resection), and patients with borderline cases or T3 lesion were 40 cases (59.7%) and received intersphincteric resection with quadrant resection of upper external sphincter and primary repair of the external sphincter as inversion proctoplasty (Group II: extended intersphincteric resection). Results: The mean patients age was 61.2 years. The mean location of cancer was at 3.2cm from anal verge (2-4cm). Anastomotic leakage was confirmed in 11 patients (16.4%). There was no postoperative mortality. The grade I, II of continence by Kirwan classification was 81.5%, 80.0% in Group I and II. Under 3 times stool frequency per day was 51.9%, 62.5% in Group I and II. Two patients (3.0%) experienced locoregional recurrence of pelvic cavity. 5-year overall survival rate was 83.6%. Conclusions: Simple and extended intersphincteric resection is seemed to be a safe and functionally acceptable procedure. And, neoadjuvant mid-course chemoradiotherapy using oral capecitabine 2,000 mg/m2/day on 21 days during 2 Gy radiation of each 15 weekdays is seemed to be a tolerable and effective modality, in patients with very low rectal cancer.

scholarly journals Prognostic implications of surgical specimen quality on the oncological outcomes of open and laparoscopic surgery in mid and low rectal cancer

2021 ◽  
Author(s):  
Vicente Pla-Martí ◽  
José Martín-Arévalo ◽  
David Moro-Valdezate ◽  
Stephanie García-Botello ◽  
Leticia Pérez-Santiago ◽  
...  
Keyword(s):  
Rectal Cancer ◽  
Disease Free Survival ◽  
Laparoscopic Approach ◽  
Low Rectal Cancer ◽  
Oncologic Outcomes ◽  
Distal Margin ◽  
Surgical Specimen ◽  
Oncological Outcomes

Abstract Purpose Determine differences in pathologic outcomes between laparoscopic (LAP) and open surgery (OPEN) for mid and low rectal cancer and its influence in long-term oncological outcomes. Methods Retrospective case matched study at a tertiary institution. Adults with rectal cancer below 12 cm from the anal verge operated between January 2005 and September 2018 were included. Primary outcomes were quality of specimen, overall survival (OS), disease-free survival (DFS), and local recurrence (LR). Results The study included 311 patients, LAP = 108 (34.7%), OPEN = 203 (65,3%). A successful resection was accomplished in 81% of the LAP group and in 84.5% of the OPEN (p = 0.505). No differences in free distal margin (LAP = 100%, OPEN = 97.5%; p = 0.156) or circumferential resection margin (LAP = 95.2%, OPEN = 93.2%; p = 0.603) were observed. However, mesorectum quality was incomplete in 16.2% for LAP and in 8.1% for OPEN (p = 0.048). OS was 91.1% for LAP and 81.1% for OPEN (p = 0.360). DFS was 81.4% for LAP and 77.5% for OPEN (p = 0.923). Overall, LR was 2.3% without differences between groups. Conclusions Laparoscopic approach could affect the quality of surgical specimen due to technical aspects. However, if principles of surgical oncology are respected, minor pathologic differences in the quality of the mesorectum may not influence on the long-term oncologic outcomes.

scholarly journals Analysis of Clinical Factors Associated with Anal Function after Intersphincteric Resection for Very Low Rectal Cancer

2009 ◽  
Vol 52 (1) ◽  
pp. 64-70 ◽  
Author(s):  
Masaaki Ito ◽  
Norio Saito ◽  
Masanori Sugito ◽  
Akihiro Kobayashi ◽  
Yusuke Nishizawa ◽  
...  
Keyword(s):  
Rectal Cancer ◽  
Intersphincteric Resection ◽  
Low Rectal Cancer ◽  
Clinical Factors ◽  
Anal Function ◽  
Factors Associated ◽  
Very Low Rectal Cancer

scholarly journals Evaluation of the Learning Curve for Conformal Sphincter Preservation Operation in The Treatment of Ultra-Low Rectal Cancer

2021 ◽  
Author(s):  
Hai-bo ding ◽  
Lin-hui Wang ◽  
Ge Sun ◽  
Guan-yu Yu ◽  
Xian-hua Gao ◽  
...  
Keyword(s):  
Rectal Cancer ◽  
Multivariate Analysis ◽  
Postoperative Complications ◽  
Learning Curve ◽  
Survival Data ◽  
Moving Average ◽  
Anal Verge ◽  
Operation Time ◽  
Sphincter Preservation ◽  
Low Rectal Cancer

Abstract Background: To investigate the learning curve of conformal sphincter preservation operation (CSPO) in the treatment of ultra-low rectal cancer and to further expore the influencing factors of operation time.Methods: From August 2011 to April 2020, 108 consecutive patients with ultra-low rectal cancer underwent CSPO by the same surgeon in the department of colorectal surgery of Changhai Hospital. The moving average and cumulative sum control chart (CUSUM) curve were used to analyze the learning curve. The preoperative clinical baseline data, postoperative pathological data, postoperative complications and survival data were compared before and after the completion of learning curve. The influencing factors of CSPO operation time were analyzed by univariate and multivariate analysis.Results: According to the results of moving average and CUSUM method, CSPO learning curve was divided into learning period (1-45 cases) and learning completion period (46-108 cases). There was no significant difference in preoperative clinical baseline data, postoperative pathological data, postoperative complications and survival data between the two stages. Compared with the learning period, the operation time (P < 0.05), blood loss (P < 0.05), postoperative flatus and defecation time (P < 0.05), liquid diet time (P < 0.05) and postoperative hospital stay (P < 0.05) in the learning completion period were significantly reduced, and the difference was statistically significant. Univariate and multivariate analysis showed that distance of tumor from anal verge (≥ 4cm vs. <4cm, P=0.039) and T stage (T3 vs. T1-2, P=0.022) were independent risk factors for prolonging the operation time of CSPO.Conclusions: For surgeons with laparoscopic surgery experience, about 45 cases of CSPO are needed to cross the learning curve. At the initial stage of CSPO, beginners are recommended to select patients with ultra-low rectal cancer whose distance of tumor from anal verge is less than 4cm and tumor stage is less than T3 for practice, which can enable beginners to reduce the operation time, accumulate experience, build self-confidence and shorten the learning curve on the premise of safety.

scholarly journals Clinical parameters predictive for sphincter-preserving surgery and prognostic outcome in patients with locally advanced low rectal cancer

2020 ◽  
Author(s):  
Richard Partl ◽  
Marton Magyar ◽  
Eva Hassler ◽  
Tanja Langsenlehner ◽  
Karin Sigrid Kapp
Keyword(s):  
Rectal Cancer ◽  
Karnofsky Performance Status ◽  
Anal Verge ◽  
Performance Status ◽  
Univariate Analysis ◽  
Locally Advanced ◽  
Sphincter Preservation ◽  
Low Rectal Cancer ◽  
Clinical Parameters ◽  
Histopathological Response

Abstract Background Although controversial, there are data suggesting that clinical parameters can predict the probability of sphincter preserving procedures in rectal cancer. The purpose of this study was to investigate the association between clinical parameters and the sphincter-preserving surgery rate in patients who had undergone neoadjuvant combination therapy for advanced low rectal cancer. Methods In this single center study, the charts of 540 patients with locally advanced rectal cancer who had been treated with induction chemotherapy-and/or neoadjuvant concomitant radiochemotherapy (nRCT) over an 11-year period were reviewed in order to identify patients with rectal cancer ≤6 cm from the anal verge, who had received the prescribed nRCT only. Univariate and multivariate analyses were used to identify pretreatment patient- and tumor associated parameters correlating with sphincter preservation. Survival rates were calculated using Kaplan-Meier analyses. Results 280 of the 540 patients met the selection criteria. Of the 280 patients included in the study, 158 (56.4%) underwent sphincter-preserving surgery. 164 of 280 patients (58.6%) had a downsizing of the primary tumor (ypT < cT) and 39 (23.8%) of these showed a complete histopathological response (ypT0 ypN0). In univariate analysis, age prior to treatment, Karnofsky performance status, clinical T-size, relative lymphocyte value, CRP value, and interval between nRCT and surgery, were significantly associated with sphincter-preserving surgery. In multivariate analysis, age (hazard ratio (HR)=1.05, CI95%: 1.02-1.09, p=0.003), relative lymphocyte value (HR=0.94, CI95%: 0.89-0.99, p=0.029), and interval between nRCT and surgery (HR=2.39, CI95%: 1.17-4.88, p=0.016) remained as independent predictive parameters. A significant longer disease-free (p =0.009) and overall survival (p =0.004) were observed in the sphincter-preserving surgery group. Conclusions The findings of our study in a consistently treated cohort of 280 patients with advanced low rectal cancer suggest that clinical parameters have a role in predicting sphincter-preserving surgery.

Intersphincteric Resection for Low Rectal Cancer: Parameters Affecting Functional Outcomes and Survival Rates

2021 ◽  
Vol 39 ◽  
Author(s):  
Vusal Aliyev ◽  
◽  
Beslen Goksoy ◽  
Suha Goksel ◽  
Koray Guven ◽  
...  
Keyword(s):  
Rectal Cancer ◽  
Local Recurrence ◽  
Functional Outcomes ◽  
Survival Rates ◽  
Disease Free Survival ◽  
Intersphincteric Resection ◽  
Low Rectal Cancer ◽  
Free Survival ◽  
Very Low Rectal Cancer ◽  
Disease Free

Introduction: The development of new surgical techniques and devices, as well as the improvements in neoadjuvant chemoradiotherapy enabled intersphincteric resection (ISR), has reduced permanent colostomy usage. The aim of this study was to assess the long-term oncological and functional outcomes of patients who underwent partial ISR for rectal cancer located less than 5cm from the anal verge. Materials and Methods: A series of 106 consecutive patients with very low rectal cancer underwent curative partial ISR from January 2006 to September 2019 were retrospectively evaluated. One-hundred-three (97%) of 106 patients received neoadjuvant chemo-radiotherapy. Overall survival (OS), disease-free survival (DFS), and local recurrence (LR) rates were calculated using Kaplan–Meier methods. The Wexner incontinence score and Kirwan classification were used to evaluate patients’ functional results. Results: The median follow up was 60 months (range, 18–174). The estimated five-year overall and disease-free survival rates were 89% and 81.6%, respectively. Five-year local recurrence and distant metastasis rates were 6.6% and 10.4%, respectively. There was no in-hospital and 30-day mortality. The median Wexner score was 9 (range, 0–20) for 72 patients. Age (<65 years, p=0.027) and gender (male, p=0.019) had a positive effect on functional outcomes after surgery. One and five years colostomy-free survival rates were 96% and 89%, respectively. Conclusion: Intersphincteric resection techniques are feasible for patients with very low rectal cancer, providing good oncological and functional outcomes.

scholarly journals Evaluation of factors determining oncological clearance with sphincter preservation in low rectal cancer

2019 ◽  
Vol 10 (1) ◽  
pp. 16-20
Author(s):  
Asif Almas Haque ◽  
Hasina Alam ◽  
Md Rajibul Haque Talukder
Keyword(s):  
Rectal Cancer ◽  
Surgical Management ◽  
Complex Disease ◽  
Anal Verge ◽  
Muscularis Propria ◽  
Sphincter Preservation ◽  
Low Rectal Cancer ◽  
Clear Understanding ◽  
Permanent Colostomy ◽  
Number Of Patients

Background: Approximately one third of all colorectal cancers are rectal cancers. It is a peculiar malignancy as resection of this cancer may lead to loss of anal sphincter and the patient is condemned to a permanent colostomy. Aim of the surgery is oncological clearance and sphincter preservation. The optimal surgical management of rectal cancer requires detailed preoperative planning and to determine a logical approach to the management of this complex disease by analyzing the factors that determine its surgical outcome. This study was done to obtain a clear understanding of the factors determining the oncological clearance and sphincter preservation in low rectal carcinoma and thereby guiding surgeons to take appropriate decision in the surgical management. Methods: This prospective observational study, involving 60 consecutive patients with low rectal cancer, was done in Sir Salimullah Medical College and Mitford Hospital, from January 2013 to December 2015. Data were prospectively collected, using detailed proforma and analyzed with a Statistical Package for the Social Sciences (SPSS) version 18.0 and the results were presented in tables. Results: Out of the 60 patients, 40 (67%) had oncological clearance and 26 (43%) had sphincter preservation. A statistically significant number of patients with T1-T2 tumor had oncological clearance [40 (83%) vs 8 (17%), p<0.05]. None of the patients with T3-T4 tumor had curative resection. Whereas, a statistically significant number of patients with tumor distance beyond 5 cm from anal verge, had sphincter preservation [32 (94%) vs 2 (6%), p<0.05]. Most of the patients with tumor within 5 cm [24 (94%) out of 26] had sphincter resection. Conclusion: Tumor factors, favoring sphincter preservation, were ³5 cm distance from anal verge, whereas, circumferential spread limited to muscularis propria (T1-T2), favored oncological clearance. Birdem Med J 2020; 10(1): 16-20

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