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Kimura CMS, Kawaguti FS, Horvat N, Nahas CSR, Marques CFS, Pinto RA, de Rezende DT, Segatelli V, Safatle-Ribeiro AV, Junior UR, Maluf-Filho F, Nahas SC. Magnifying chromoendoscopy is a reliable method in the selection of rectal neoplasms for local excision. Tech Coloproctol 2023; 27:1047-1056. [PMID: 36906661 DOI: 10.1007/s10151-023-02773-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 02/12/2023] [Indexed: 03/13/2023]
Abstract
PURPOSE Adequate staging of early rectal neoplasms is essential for organ-preserving treatments, but magnetic resonance imaging (MRI) frequently overestimates the stage of those lesions. We aimed to compare the ability of magnifying chromoendoscopy and MRI to select patients with early rectal neoplasms for local excision. METHODS This retrospective study in a tertiary Western cancer center included consecutive patients evaluated by magnifying chromoendoscopy and MRI who underwent en bloc resection of nonpedunculated sessile polyps larger than 20 mm, laterally spreading tumors (LSTs) [Formula: see text] 20 mm, or depressed-type lesions of any size (Paris 0-IIc). Sensitivity, specificity, accuracy, and positive and negative predictive values of magnifying chromoendoscopy and MRI to determine which lesions were amenable to local excision (i.e., [Formula: see text] T1sm1) were calculated. RESULTS Specificity of magnifying chromoendoscopy was 97.3% (95% CI 92.2-99.4), and accuracy was 92.7% (95% CI 86.7-96.6) for predicting invasion deeper than T1sm1 (not amenable to local excision). MRI had lower specificity (60.5%, 95% CI 43.4-76.0) and lower accuracy (58.3%, 95% CI 43.2-72.4). Magnifying chromoendoscopy incorrectly predicted invasion depth in 10.7% of the cases in which the MRI was correct, while magnifying chromoendoscopy provided a correct diagnosis in 90% of the cases in which the MRI was incorrect (p = 0.001). Overstaging occurred in 33.3% of the cases in which magnifying chromoendoscopy was incorrect and 75% of the cases in which MRI was incorrect. CONCLUSION Magnifying chromoendoscopy is reliable for predicting invasion depth in early rectal neoplasms and selecting patients for local excision.
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Affiliation(s)
- C M S Kimura
- Divisoin of Gastrointestinal Surgery, Instituto do Câncer do Estado de São Paulo, São Paulo, Brazil
- Department of Surgery, Stanford University School of Medicine, Stanford, USA
| | - F S Kawaguti
- Division of Endoscopy, Instituto do Câncer do Estado de São Paulo, Dr. Arnaldo Av, 251, 2nd Floor, São Paulo, Zip Code 01246-000, Brazil.
| | - N Horvat
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, USA
| | - C S R Nahas
- Divisoin of Gastrointestinal Surgery, Instituto do Câncer do Estado de São Paulo, São Paulo, Brazil
| | - C F S Marques
- Divisoin of Gastrointestinal Surgery, Instituto do Câncer do Estado de São Paulo, São Paulo, Brazil
| | - R A Pinto
- Divisoin of Gastrointestinal Surgery, Instituto do Câncer do Estado de São Paulo, São Paulo, Brazil
| | - D T de Rezende
- Division of Endoscopy, Instituto do Câncer do Estado de São Paulo, Dr. Arnaldo Av, 251, 2nd Floor, São Paulo, Zip Code 01246-000, Brazil
| | - V Segatelli
- Division of Pathology, Instituto do Câncer do Estado de São Paulo, São Paulo, Brazil
| | - A V Safatle-Ribeiro
- Division of Endoscopy, Instituto do Câncer do Estado de São Paulo, Dr. Arnaldo Av, 251, 2nd Floor, São Paulo, Zip Code 01246-000, Brazil
| | - U R Junior
- Divisoin of Gastrointestinal Surgery, Instituto do Câncer do Estado de São Paulo, São Paulo, Brazil
| | - F Maluf-Filho
- Division of Endoscopy, Instituto do Câncer do Estado de São Paulo, Dr. Arnaldo Av, 251, 2nd Floor, São Paulo, Zip Code 01246-000, Brazil
| | - S C Nahas
- Divisoin of Gastrointestinal Surgery, Instituto do Câncer do Estado de São Paulo, São Paulo, Brazil
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Zhang M, Zhang Y, Jing H, Zhao L, Xu M, Xu H, Zhu S, Zhang X. Prognosis of Patients Over 60 Years Old With Early Rectal Cancer Undergoing Transanal Endoscopic Microsurgery – A Single-Center Experience. Front Oncol 2022; 12:888739. [PMID: 35774121 PMCID: PMC9239430 DOI: 10.3389/fonc.2022.888739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 05/12/2022] [Indexed: 11/13/2022] Open
Abstract
AimTransanal endoscopic microsurgery (TEM) is widely performed in early rectal cancer. This technique offers greater organ preservation and decreases the risk of subsequent surgery. However, postoperative local recurrence and distant metastasis remain challenges for patients with high-risk pathological factors. This single-center study reports the prognosis of early rectal cancer patients over 60 years old after TEM.MethodsThe data of the patients over 60 years old who underwent local anal resection were collected retrospectively. Moreover, the 5-year follow-up data were analyzed to determine the 5-year DFS and OS.Results47 early rectal cancer patients over 60 years old underwent TEM. There were 27 patients with high-risk factors and 20 patients without high-risk factors. Two patients underwent radical surgery after TEM and ten patients received adjuvant treatment. Local recurrence occurred in 7 patients, of which 4 underwent salvage surgery. The 5-year progression-free survival rate was 75.6%, which was lower in the high-risk patients group (69.6%) than in the non-high-risk patients group (83.3%) (P>0.05). The 5-year OS was 90.2%, but there was no statistically significant difference between the two groups (high-risk patients 87.0%, non-high-risk patients 94.4%). Furthermore, there was no significant difference in DFS and OS between people over and under 70 years old.ConclusionSome high-risk factor patients over 60 years old do not have inferior 5-year DFS and OS to the non-high-risk patients. TEM is an option for old patients with high surgical risks. Even if postoperative pathology revealed high-risk factors, timely surgical treatment after local recurrence would be beneficial to improve the 5-year DFS and OS.
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Affiliation(s)
- Mingqing Zhang
- Nankai University School of Medicine, Nankai University, Tianjin, China
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China
- The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China
| | - Yongdan Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China
| | - Haoren Jing
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China
| | - Lizhong Zhao
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China
| | - Mingyue Xu
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China
| | - Hui Xu
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China
| | - Siwei Zhu
- Nankai University School of Medicine, Nankai University, Tianjin, China
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China
- The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China
- *Correspondence: Siwei Zhu, ; Xipeng Zhang,
| | - Xipeng Zhang
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin, China
- Colorectal Cancer Screening Office, Tianjin Institute of Coloproctology, Tianjin, China
- The Institute of Translational Medicine, Tianjin Union Medical Center of Nankai University, Tianjin, China
- *Correspondence: Siwei Zhu, ; Xipeng Zhang,
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3
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Wyatt JNR, Powell SG, Altaf K, Barrow HE, Alfred JS, Ahmed S. Completion Total Mesorectal Excision After Transanal Local Excision of Early Rectal Cancer: A Systematic Review and Meta-analysis. Dis Colon Rectum 2022; 65:628-640. [PMID: 35143429 DOI: 10.1097/dcr.0000000000002407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Completion total mesorectal excision is recommended when local excision of early rectal cancers demonstrates high-risk histopathological features. Concerns regarding the quality of completion resections and the impact on oncological safety remain unanswered. OBJECTIVE This study aims to summarize and analyze the outcomes associated with completion surgery and undertake a comparative analysis with primary rectal resections. DATA SOURCES Data sources included PubMed, Cochrane library, MEDLINE, and Embase databases up to April 2021. STUDY SELECTION All studies reporting any outcome of completion surgery after transanal local excision of an early rectal cancer were selected. Case reports, studies of benign lesions, and studies using flexible endoscopic techniques were not included. INTERVENTION The intervention was completion total mesorectal excision after transanal local excision of early rectal cancers. MAIN OUTCOME MEASURES Primary outcome measures included histopathological and long-term oncological outcomes of completion total mesorectal excision. Secondary outcome measures included short-term perioperative outcomes. RESULTS Twenty-three studies including 646 patients met the eligibility criteria, and 8 studies were included in the meta-analyses. Patients undergoing completion surgery have longer operative times (standardized mean difference, 0.49; 95% CI, 0.23-0.75; p = 0.0002) and higher intraoperative blood loss (standardized mean difference, 0.25; 95% CI, 0.01-0.5; p = 0.04) compared with primary resections, but perioperative morbidity is comparable (risk ratio, 1.26; 95% CI, 0.98-1.62; p = 0.08). Completion surgery is associated with higher rates of incomplete mesorectal specimens (risk ratio, 3.06; 95% CI, 1.41-6.62; p = 0.005) and lower lymph node yields (standardized mean difference, -0.26; 95% CI, -0.47 to 0.06; p = 0.01). Comparative analysis on long-term outcomes is limited, but no evidence of inferior recurrence or survival rates is found. LIMITATIONS Only small retrospective cohort and case-control studies are published on this topic, with considerable heterogeneity limiting the effectiveness of meta-analysis. CONCLUSIONS This review provides the strongest evidence to date that completion surgery is associated with an inferior histopathological grade of the mesorectum and finds insufficient long-term results to satisfy concerns regarding oncological safety. International collaborative research is required to demonstrate noninferiority. REGISTRATION NO CRD42021245101.
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Affiliation(s)
- James N R Wyatt
- Department of Colorectal Surgery, Liverpool University Hospitals NHS Foundation Trust, Liverpool, United Kingdom
- University of Liverpool, Liverpool, United Kingdom
| | - Simon G Powell
- Department of Colorectal Surgery, Liverpool University Hospitals NHS Foundation Trust, Liverpool, United Kingdom
- University of Liverpool, Liverpool, United Kingdom
| | - Kiran Altaf
- Department of Colorectal Surgery, Liverpool University Hospitals NHS Foundation Trust, Liverpool, United Kingdom
| | - Hannah E Barrow
- Department of Colorectal Surgery, Liverpool University Hospitals NHS Foundation Trust, Liverpool, United Kingdom
| | - Joshua S Alfred
- Department of Colorectal Surgery, Liverpool University Hospitals NHS Foundation Trust, Liverpool, United Kingdom
| | - Shakil Ahmed
- Department of Colorectal Surgery, Liverpool University Hospitals NHS Foundation Trust, Liverpool, United Kingdom
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Berger NF, Sylla P. The Role of Transanal Endoscopic Surgery for Early Rectal Cancer. Clin Colon Rectal Surg 2022; 35:113-121. [PMID: 35237106 PMCID: PMC8885158 DOI: 10.1055/s-0041-1742111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Transanal endoscopic surgery (TES), which is performed through a variety of transanal endoluminal multitasking surgical platforms, was developed to facilitate endoscopic en bloc excision of rectal lesions as a minimally invasive alternative to radical proctectomy. Although the oncologic safety of TES in the treatment of malignant rectal tumors has been an area of vigorous controversy over the past two decades, TES is currently accepted as an oncologically safe approach for the treatment of carefully selected early and superficial rectal cancers. TES can also serve as both a diagnostic and potentially curative treatment of partially resected unsuspected malignant polyps. In this article, indications and contraindications for transanal endoscopic excision of early rectal cancer lesions are reviewed, as well as selection criteria for the most appropriate transanal excisional approach. Preoperative preparation and surgical technique for complications of TES will be reviewed, as well as recommended surveillance and management of upstaged tumors.
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Affiliation(s)
| | - Patricia Sylla
- Icahn School of Medicine at Mount Sinai, New York, New York,Division of Colon and Rectal Surgery, Department of Surgery, Mount Sinai Hospital, New York, New York,Address for correspondence Patricia Sylla, MD, FACS, FASCRS Division of Colon and Rectal Surgery, Department of Surgery, Mount Sinai Hospital5 East 98th Street, Box 1259, New York, NY 10029
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Prior endoscopic resection does not affect the outcome of secondary surgery for T1 colorectal cancer, a systematic review and meta-analysis. Int J Colorectal Dis 2022; 37:273-281. [PMID: 34716475 DOI: 10.1007/s00384-021-04049-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/13/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND It remains unclear the effect of prior endoscopic resection (ER) on the secondary surgery (SS) for T1 colorectal cancer (CRC). This study aimed to compare the short- and long-term outcomes between primary surgery (PS) and ER followed by SS for T1 CRC. METHODS A systematic literature search was performed in PubMed and Ovid for studies comparing PS with ER followed by SS for T1 colorectal cancer. The last search was performed on 18 May 2021. The primary outcomes were surgical parameters and the secondary outcomes were survival indicators. The meta-analysis was performed with Review Manager Software (version 5.3). RESULTS A total of fifteen studies published between 2013 and 2021 with 4349 patients were included in this meta-analysis finally. No significant difference was observed between the two groups for operative time (P = 0.75, WMD = 3.16, 95%CI [-15.88, 22.19], I2 = 64%), blood loss (P = 0.86, WMD = 12.33, 95%CI [-122.99, 147.65], I2 = 95%), and postoperative complications (P = 0.59, OR = 0.93, 95%CI [0.71, 1.22], I2 = 0%). Besides, the two groups showed comparable survival outcomes, including overall recurrence rate (P = 0.15, OR = 0.78, 95%CI [0.56, 1.09], I2 = 23%) and 5-year overall survival (P = 0.76, OR = 0.86, 95%CI [0.33, 2.25], I2 = 0%). In the subgroup analysis for studies with propensity matching score or lesions located in the rectum, the results were not changed. CONCLUSION ER followed by SS is feasible for T1 CRC with high-risk factors. The prior ER would not bring additional adverse effects to the SS. More advanced tools should be developed to improve the diagnostic accuracy for the high-risk factors before treatment for T1 CRC.
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Pacevicius J, Petrauskas V, Pilipavicius L, Dulskas A. Local Excision ± Chemoradiotherapy vs. Total Mesorectal Excision for Early Rectal Cancer: Case-Matched Analysis of Long-Term Results. Front Surg 2021; 8:746784. [PMID: 34733880 PMCID: PMC8558343 DOI: 10.3389/fsurg.2021.746784] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 09/07/2021] [Indexed: 12/14/2022] Open
Abstract
Background: Our aim was to compare the bowel function and oncologic outcomes following these two treatment modalities. Materials and methods: This was a single-center study with 67 patients included between 2009 and 2018. A total of 32 patients underwent total mesorectal excision (TME) group and 35 transanal local excisions (LE) ± chemoradiation. We performed a case-matched analysis: we matched the patients by age, cancer stage, and comorbidities. Duration of operation, postoperative complications, length of hospital stay, and long-term functional and oncological outcomes were compared. We calculated oncological outcomes using Kaplan-Meier Cox diagrams. In addition, we used a low anterior resection syndrome (LARS) score for the bowel function assessment. Results: Mean operation time in the LE group was 58.8 ± 45 min compared with the TME group that was 121.1 ± 42 min (p = 0.032). Complications were seen in 5.7% in LE group and 15.62% in TME group (p = 0.043). ~85.2% of the patients had no LARS in LE group compared with 54.5% in TME group (p = 0.018). Minor LARS was 7.4% in LE group compared with 31.8% in TME group (p = 0.018); major LARS was 7.4 and 13.7%, respectively (p = 0.474). Hospital stay was 2.77 days in LE group compared with 9.21 days in TME group (p = 0.036). The overall survival was 68.78 months in LE group compared with 74.81 months in TME group (p = 0.964). Conclusion: Our results of a small sample size showed that local excision ± chemoradiation is a rather safe method for early rectal cancer compared with gold standard treatment. In addition, better bowel function is preserved with less postoperative complications and shorter hospital stays.
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Affiliation(s)
- Julius Pacevicius
- Department of Abdominal and General Surgery and Oncology, National Cancer Institute, Vilnius, Lithuania
| | - Vidas Petrauskas
- Department of Abdominal and General Surgery and Oncology, National Cancer Institute, Vilnius, Lithuania
| | - Lukas Pilipavicius
- Department of Abdominal and General Surgery and Oncology, National Cancer Institute, Vilnius, Lithuania
| | - Audrius Dulskas
- Department of Abdominal and General Surgery and Oncology, National Cancer Institute, Vilnius, Lithuania
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Early salvage total mesorectal excision (sTME) after organ preservation failure in rectal cancer does not worsen postoperative outcomes compared to primary TME: systematic review and meta-analysis. Int J Colorectal Dis 2021; 36:2375-2386. [PMID: 34244857 DOI: 10.1007/s00384-021-03989-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/26/2021] [Indexed: 02/04/2023]
Abstract
IMPORTANCE While oncological outcomes of early salvage total mesorectal excision (sTME) after local excision (LE) have been well studied, the impact of LE before TME on postoperative outcomes remains unclear. We aimed to compare early sTME with a primary TME for rectal cancer. METHODS Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA) guidelines with the random-effects model were adopted using Review Manager Version 5.3 for pooled estimates. RESULTS We retrieved eleven relevant articles including 1728 patients (350 patients in the sTME group and 1438 patients in the TME group). There was no significant difference between the two groups in terms of mortality (OR = 0.90, 95%CI [0.21 to 3.77], p = 0.88), morbidity (OR = 1.19, 95%CI [0.59 to 2.38], p = 0.63), conversion to open surgery (OR = 1.34, 95%CI [0.61 to 2.94], p = 0.47), anastomotic leak (OR = 1.38, 95%CI [0.50 to 3.83], p = 0.53), hospital stay (MD = 0.23 day, 95%CI [- 1.63 to 2.10], p < 0.81), diverting stoma rate (OR = 0.69, 95%CI [0.44 to 1.09], p = 0.11), abdominoperineal resection rate (OR = 1.47, 95%CI [0.91 to 2.37], p = 0.11), local recurrence (OR = 0.94, 95%CI [0.44 to 2.04], p = 0.88), and distant recurrence (OR = 0.88, 95%CI [0.52 to 1.48], p = 0.62). sTME was associated with significantly longer operative time (MD = 25.62 min, 95%CI[11.92 to 39.32], p < 0.001) lower number of harvested lymph nodes (MD = - 2.25 lymph node, 95%CI [- 3.86 to - 0.65], p = 0.006), and higher proportion of incomplete TME (OR = 0.25, 95%CI [0.11 to 0.61], p = 0.002). CONCLUSIONS sTME is not associated with increased postoperative morbidity, mortality, or local recurrence. However, the operative times are longer and yield a poor specimen quality.
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Ahmad NZ, Abbas MH, Abunada MH, Parvaiz A. A Meta-analysis of Transanal Endoscopic Microsurgery versus Total Mesorectal Excision in the Treatment of Rectal Cancer. Surg J (N Y) 2021; 7:e241-e250. [PMID: 34541316 PMCID: PMC8440057 DOI: 10.1055/s-0041-1735587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 07/22/2021] [Indexed: 11/23/2022] Open
Abstract
Background
Transanal endoscopic microsurgery (TEMS) has been suggested as an alternative to total mesorectal excision (TME) in the treatment of early rectal cancers. The extended role of TEMS for higher stage rectal cancers after neoadjuvant therapy is also experimented. The aim of this meta-analysis was to compare the oncological outcomes and report on the evidence-based clinical supremacy of either technique.
Methods
Medline, Embase, and Cochrane databases were searched for the randomized controlled trials comparing the oncological and perioperative outcomes of TEMS and a radical TME. A local recurrence and postoperative complications were analyzed as primary end points. Intraoperative blood loss, operation time, and duration of hospital stay were compared as secondary end points.
Results
There was no statistical difference in the local recurrence or postoperative complications with a risk ratio of 1.898 and 0.753 and
p
-values of 0.296 and 0.306, respectively, for TEMS and TME. A marked statistical significance in favor of TEMS was observed for secondary end points. There was standard difference in means of −4.697, −6.940, and −5.685 with
p
-values of 0.001, 0.005, and 0.001 for blood loss, operation time, and hospital stay, respectively.
Conclusion
TEMS procedure is a viable alternative to TME in the treatment of early rectal cancers. An extended role of TEMS after neoadjuvant therapy may also be offered to a selected group of patients. TME surgery remains the standard of care in more advanced rectal cancers.
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Affiliation(s)
- Nasir Zaheer Ahmad
- Department of Surgery, University Hospital Limerick, Limerick, Republic of Ireland
| | - Muhammad Hasan Abbas
- Department of Surgery, Russells Hall Hospital, NHS Trust, West Midlands, Dudley, United Kingdom
| | | | - Amjad Parvaiz
- Faculty of Health Sciences, University of Portsmouth, Portsmouth, England.,Department of Colorectal Surgery, Poole NHS Trust, Poole, United Kingdom
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Long-term outcomes of transanal endoscopic microsurgery for clinical complete response after neoadjuvant treatment in T2-3 rectal cancer. Surg Endosc 2021; 36:2906-2913. [PMID: 34231071 DOI: 10.1007/s00464-021-08583-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 06/02/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Organ sparing by the transanal endoscopic microsurgery (TEM) procedure is a treatment for patients with locally advanced rectal cancer after chemoradiotherapy (CRT) and complete clinical response (cCR). AIMS To assess the surgical and long-term oncological outcomes of TEM for the treatment in T2-3 rectal cancer after CRT and cCR. METHODS This study was a retrospective review of a prospective database of patients with rectal cancer who underwent TEM after CRT and cCR from April 2011 to March 2020. RESULTS 52 patients underwent TEM during a period of 9 years. This group of patients included 27 females and 25 males. The median age was 62 (32-86) years, lesion size was 2.5 (1-4) cm, and lesion distance from the anal verge 7.3 (4-10) cm. Median operative time was 79.5 (25-120) min and hospital stay was 1 day (14 h-4 days). Morbidity rate was 13.5% and reoperation rate due to major complications was 3.8%. Final histological findings confirmed 34 (65.4%) patients with ypT0, 7 (13.5%), 6 (11.5%), and 5 (9.6%) patients with carcinoma ypT1, ypT2, and ypT3, respectively. After a median follow-up period of 86 (5-107) months, 1 (2.4%) patient had local recurrences and 3 (7.3%) distant metastases. The 5-year disease-free survival was 91.7% and 5-year overall survival 89.5%. CONCLUSION Our experience has shown significant rates of ypT0 and ypT1 associated with excellent long-term results. Performing TEM to treat T2-3N0 rectal cancer after CRT and cCR appears to be an oncologically safe and effective procedure.
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The impact of transanal local excision of early rectal cancer on completion rectal resection without neoadjuvant chemoradiotherapy: a systematic review. Tech Coloproctol 2021; 25:997-1010. [PMID: 34173121 DOI: 10.1007/s10151-020-02401-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 12/28/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND The impact of transanal local excision (TAE) of early rectal cancer (ERC) on subsequent completion rectal resection (CRR) for unfavorable histology or margin involvement is unclear. The aim of this study was to provide a comprehensive review of the literature on the impact of TAE on CRR in patients without neoadjuvant chemoradiotherapy (CRT). METHODS We performed a systematic review of the literature up to March 2020. Medline and Cochrane libraries were searched for studies reporting outcomes of CRR after TAE for ERC. We excluded patients who had neoadjuvant CRT and endoscopic local excision. Surgical, functional, pathological and oncological outcomes were assessed. The Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines were followed. RESULTS Sixteen studies involving 353 patients were included. Pathology following TAE was as follows T0 = 2 (0.5%); T1 = 154 (44.7%); T2 = 142 (41.2%); T3 = 43 (12.5%); Tx = 3 (0.8%); T not reported = 9. Fifty-three percent were > T1. Abdominoperineal resection (APR) was performed in 80 (23.2%) patients. Postoperative major morbidity and mortality occurred in 22 (11.4%) and 3 (1.1%), patients, respectively. An incomplete mesorectal fascia resulting in defects of the mesorectum was reported in 30 (24.6%) cases. Thirteen (12%) patients developed recurrence: 8 (3.1%) local, 19 (7.3%) distant, 4 (1.5%) local and distant. The 5-year cancer-specific survival was 92%. Only 1 study assessed anal function reporting no continence disorders in 11 patients. In the meta-analysis, CRR after TAE showed an increased APR rate (OR 5.25; 95% CI 1.27-21.8; p 0.020) and incomplete mesorectum rate (OR 3.48; 95% CI 1.32-9.19; p 0.010) compared to primary total mesorectal excision (TME). Two case matched studies reported no difference in recurrence rate and disease free survival respectively. CONCLUSIONS The data are incomplete and of low quality. There was a tendency towards an increased risk of APR and poor specimen quality. It is necessary to improve the accuracy of preoperative staging of malignant rectal tumors in patients scheduled for TAE.
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11
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Completion Surgery in Unfavorable Rectal Cancer after Transanal Endoscopic Microsurgery: Does It Achieve Satisfactory Sphincter Preservation, Quality of Total Mesorectal Excision Specimen, and Long-term Oncological Outcomes? Dis Colon Rectum 2021; 64:200-208. [PMID: 33315715 DOI: 10.1097/dcr.0000000000001730] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Unfavorable adenocarcinoma after transanal endoscopic microsurgery requires "completion surgery" with total mesorectal excision. The literature on this procedure is very limited. OBJECTIVE This study aims to assess the percentage of transanal endoscopic microsurgery that will require completion surgery. DESIGN This is an observational study with prospective data collection and retrospective analysis from patients who were operated on consecutively. SETTINGS The study was conducted at a single academic institution. PATIENTS Patients undergoing transanal endoscopic microsurgery from June 2004 to December 2018 who later required total mesorectal excision were included. MAIN OUTCOME MEASURES All the patients followed the same protocol: preoperative study, indication of transanal endoscopic microsurgery with curative intent, performance of transanal endoscopic microsurgery, and completion surgery indication 3 to 4 weeks after transanal endoscopic microsurgery. RESULTS Seven hundred seventy-four patients underwent transanal endoscopic microsurgery, 622 with curative intent (group I: adenoma, 517; group II: adenocarcinoma, 105). Completion surgery was indicated in 64 of 622 (10.3%) patients: group I, 40 of 517 (7.7%) and group II, 24 of 105 (22.9%). After applying exclusion criteria, completion surgery was performed in 55 patients (8.8%). Abdominoperineal resection was performed in 23 (45.1%); the initial lesion was within 6 cm of the anal verge in 19 of these 23 (82.6%). The clinical morbidity rate (Clavien Dindo> II) was 3 of 51 (5.9%). Total mesorectal excision was graded as complete in 42 of 49 (85.7%). The circumferential resection margin was tumor-free in 47 of 50 (94%). Median follow-up was 58 months. Local recurrence was recorded in 2 of 51 (3.9%) and systemic recurrence was recorded in 7 of 51 (13.7%); 5-year disease-free survival was 86%. LIMITATIONS The limitations are defined by the study's observational design and the retrospective analysis. CONCLUSION The indication of completion surgery after transanal endoscopic microsurgery is low, but is higher in the indication of adenocarcinoma. Compared with initial total mesorectal excision, completion surgery requires a higher rate of abdominoperineal resection, but has similar postoperative morbidity, total mesorectal excision quality, and oncological results. See Video Abstract at http://links.lww.com/DCR/B423. CIRUGA COMPLEMENTARIA EN CNCER DE RECTO DESFAVORABLE DESPUS DE UNA TEM SE OBTIENE SATISFACTORIAMENTE PRESERVACIN DEL ESFNTER, CALIDAD DE MUESTRA DE ETM Y RESULTADOS ONCOLGICOS A LARGO PLAZO ANTECEDENTES:El adenocarcinoma con evolución desfavorable luego de una de microcirugía endoscópica transanal (TEM) requiere "cirugía de finalización" con la excisión total del mesorecto. La literatura sobre este procedimiento es muy limitada.OBJETIVO:Evaluar el porcentaje de microcirugía endoscópica transanal que requerió cirugía completa.DISEÑO:Estudio observacional con recolección prospectiva de datos y análisis retrospectivo de pacientes operados consecutivamente.AJUSTES:El estudio se realizó en una sola institución académica.PACIENTES:Aquellos pacientes sometidos a microcirugía endoscópica transanal desde junio de 2004 hasta diciembre de 2018 que luego requirieron excisón toztal del mesorecto.PRINCIPALES MEDIDAS DE RESULTADO:Todos los pacientes siguieron el mismo protocolo: estudio preoperatorio, indicación de microcirugía endoscópica transanal con intención curativa, realización de microcirugía endoscópica transanal e indicación de cirugía complementaria 3-4 semanas después de la microcirugía endoscópica transanal.RESULTADOS:Setecientos setenta y cuatro pacientes fueron sometidos a microcirugía endoscópica transanal, 622 con intención curativa (grupo I, adenoma: 517, grupo II, adenocarcinoma: 105). la cirugía complementaria fué indicada en 64/622 (10.3%), grupo I: 40/517 (7.7%) y grupo II 24/105 (22.9%). Después de aplicar los criterios de exclusión, la cirugía complementaria se realizó en 55 pacientes (8,8%). La resección abdominoperineal fué realizada en 23 (45,1%); en 19 de estos casos 23 (82,6%) la lesión inicial se encontraba dentro los 6 cm del margen anal. La tasa de morbilidad clínica (Clavien-Dindo > II) fue de 3/51 (5,9%). La excisión total del mesorecto se calificó como completa en 42/49 (85,7%). El margen de resección circunferencial se encontraba libre de tumor en 47/50 (94%). La mediana de seguimiento fue de 58 meses. La recurrencia local se registró en 2/51 (3.9%) y la recurrencia sistémica en 7/51 (13.7%); La supervivencia libre de enfermedad a 5 años fue del 86%.LIMITACIONES:Todas definidas por el diseño observacional y el análisis retrospectivo del mismo.CONCLUSIÓN:La indicación de completar la cirugía después de una TEM es baja, pero es más alta cuando la indicación es por adenocarcinoma. En comparación con la excisión total del mesorecto inicial, la cirugía complementaria requiere una tasa más alta de resección abdominoperineal, pero tiene una morbilidad postoperatoria, una calidad de excisión total del mesorecto y resultados oncológicos similares. ConsulteVideo Resumen en http://links.lww.com/DCR/B423. (Traducción-Dr. Xavier Delgadillo).
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