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Meurice A, Pujol R, De Fourmestraux C, Coquillon M, Tessier C. Retroperitoneoscopy of the presacral space in horses: Surgical access and anatomy. Equine Vet J 2024; 56:607-616. [PMID: 37654189 DOI: 10.1111/evj.13994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 07/31/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND Surgical approaches to the equine rectum and perirectal area are described in the literature. However, surgeries in this region can be challenging. OBJECTIVE To describe the surgical anatomy of the presacral space and to evaluate its access using a retroperitoneoscopic approach. STUDY DESIGN Ex vivo experiment. METHODS Preliminary dissections were performed in two cadavers to define the boundaries of the presacral space and to determine portal locations for the surgical approach. After that, nine cadavers were used for experimental presacral retroperitoneoscopic procedure in a standing position. Following retroperitoneoscopy, cadavers were dissected to confirm the anatomical structures observed during the endoscopic procedures, to control the location of each portal and to record iatrogenic trauma. RESULTS The presacral space was bordered by the vertebral column from the ventral aspect of lumbosacral promontorium to the first coccygeal vertebra dorsally and by the presacral fascia and peritoneum ventrally. Lateral limits were composed of the sacrosciatic ligament and transversalis fascia. Cranial and caudal borders were composed of the peritoneum and coccygeal and levator ani muscles respectively. Retroperitoneoscopic portals were placed between the external anal sphincter and semimembranosus muscles and between the base of the tail and the external anal sphincter muscle through the anococcygeal fascia to enter the space by its caudal border. The retroperitoneal space was reached in all cases and the dorsal and lateral aspects of the rectum were visualised after creation of a working space. MAIN LIMITATIONS Use of cadaver specimens do not permit to evaluate the tolerance in living animals and the surgical complications such as rectal damage, haemorrhage and infection. CONCLUSION This study provides an anatomical description and surgical access of the presacral space with a minimal invasive approach. Retroperitoneoscopy allows access to the rectum and the dorsal aspect of the pelvis.
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Affiliation(s)
- Antoine Meurice
- Department of Surgery, Equine Clinic, ONIRIS, National College of Veterinary Medicine, Food Science and Engineering, Nantes, France
| | | | - Claire De Fourmestraux
- Department of Surgery, Equine Clinic, ONIRIS, National College of Veterinary Medicine, Food Science and Engineering, Nantes, France
| | - Morgane Coquillon
- Department of Surgery, Equine Clinic, ONIRIS, National College of Veterinary Medicine, Food Science and Engineering, Nantes, France
| | - Caroline Tessier
- Department of Surgery, Equine Clinic, ONIRIS, National College of Veterinary Medicine, Food Science and Engineering, Nantes, France
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Kouladouros K, Baral J. Transanal endoscopic microsurgical submucosal dissection (TEM-ESD) for rectal adenomas: a retrospective cohort study of 145 consecutive cases. Langenbecks Arch Surg 2022; 407:2423-2430. [PMID: 35652960 DOI: 10.1007/s00423-022-02562-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 05/18/2022] [Indexed: 11/24/2022]
Abstract
PURPOSE Transanal endoscopic microsurgery (TEM) and endoscopic submucosal dissection (ESD) are currently the two most popular methods for resecting large rectal adenomas en bloc. However, damage to the mesorectum in the case of TEM, plus the technical challenges and long procedure times of flexible ESD, are major disadvantages of these procedures. Transanal endoscopic microsurgical submucosal dissection (TEM-ESD) is a new technique, combining the ergonomic features of TEM with the minimally invasive approach of ESD. The aim of our study was to assess the feasibility and safety of TEM-ESD for resection of large rectal adenomas. METHODS We retrospectively analyzed all TEM-ESD procedures performed in Karlsruhe Municipal Hospital between 2012 and 2019, isolated all cases of adenomas, and analyzed the perioperative and follow-up data of the patients. RESULTS We identified 145 cases matching our criteria. The median size of the lesions was 4.2 cm, and the median operating time was 45 min. The en bloc resection rate was 100%, and the complete en bloc resection rate was 78.6%. The overall morbidity rate was 6.9%. In a median follow-up period of 24 months, there was a local recurrence in 4.8% of the cases. CONCLUSIONS TEM-ESD is a safe and feasible therapeutic option for resecting large rectal adenomas, offering high en bloc resection and low recurrence rates combined with short operating time and low morbidity. TRIAL REGISTRATION NUMBER (CLINICALTRIALS.GOV): NCT04870931.
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Affiliation(s)
- Konstantinos Kouladouros
- Central Interdisciplinary Endoscopy Department, Department of Surgery, Mannheim University Hospital, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany. .,Surgery Department, Karlsruhe Municipal Hospital, Moltkestrasse 90, 76133, Karlsruhe, Germany.
| | - Jörg Baral
- Central Interdisciplinary Endoscopy Department, Department of Surgery, Mannheim University Hospital, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.,Surgery Department, Karlsruhe Municipal Hospital, Moltkestrasse 90, 76133, Karlsruhe, Germany
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3
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Hahn SJ, Sylla P. Technological Advances in the Surgical Treatment of Colorectal Cancer. Surg Oncol Clin N Am 2022; 31:183-218. [DOI: 10.1016/j.soc.2022.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Serra-Aracil X, Lucas-Guerrero V, Mora-López L. Complex Procedures in Transanal Endoscopic Microsurgery: Intraperitoneal Entry, Ultra Large Rectal Tumors, High Lesions, and Resection in the Anal Canal. Clin Colon Rectal Surg 2022; 35:129-134. [PMID: 35237108 PMCID: PMC8885161 DOI: 10.1055/s-0041-1742113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Transanal endoscopic microsurgery (TEM) allows the local excision of rectal tumors and achieves lower morbidity and mortality rates than total mesorectal excision. TEM can treat lesions up to 18 to 20 cm from the anal verge, obtaining good oncological results in T1 stage cancers and preserving sphincter function. TEM is technically demanding. Large lesions (>5 cm), those with high risk of perforation into the peritoneal cavity, those in the upper rectum or the rectosigmoid junction, and those in the anal canal are specially challenging. Primary suture after peritoneal perforation during TEM is safe and it does not necessarily require the creation of a protective stoma. We recommend closing the wall defect in all cases to avoid the risk of inadvertent perforation. It is important to identify these complex lesions promptly to transfer them to reference centers. This article summarizes complex procedures in TEM.
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Affiliation(s)
- Xavier Serra-Aracil
- Division of Colorectal Surgery, Department of General and Digestive Surgery, Parc Taulí University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain,Address for correspondence Xavier Serra-Aracil, MD, PhD Coloproctology Unit, Department of General and Digestive Surgery, Parc Tauli University Hospital, Universitat Autònoma de BarcelonaParc Tauli s/n., 08208 Sabadell, BarcelonaSpain
| | - Victoria Lucas-Guerrero
- Division of Colorectal Surgery, Department of General and Digestive Surgery, Parc Taulí University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Laura Mora-López
- Division of Colorectal Surgery, Department of General and Digestive Surgery, Parc Taulí University Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
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Varela C, Kim NK. Surgical Treatment of Low-Lying Rectal Cancer: Updates. Ann Coloproctol 2021; 37:395-424. [PMID: 34961303 PMCID: PMC8717072 DOI: 10.3393/ac.2021.00927.0132] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 11/17/2021] [Indexed: 02/07/2023] Open
Abstract
Despite innovative advancements, distally located rectal cancer remains a critical disease of challenging management. The crucial location of the tumor predisposes it to a circumferential resection margin (CRM) that tends to involve the anal sphincter complex and surrounding organs, with a high incidence of delayed anastomotic complications and the risk of the pelvic sidewall or rarely inguinal lymph node metastases. In this regard, colorectal surgeons should be aware of other issues beyond total mesorectal excision (TME) performance. For decades, the concept of extralevator abdominoperineal resection to avoid compromised CRM has been introduced. However, the complexity of deep pelvic dissection with poor visualization in low-lying rectal cancer has led to transanal TME. In contrast, neoadjuvant chemoradiotherapy (NCRT) has allowed for the execution of more sphincter-saving procedures without oncologic compromise. Significant tumor regression after NCRT and complete pathologic response also permit applying the watch-and-wait protocol in some cases, now with more solid evidence. This review article will introduce the current surgical treatment options, their indication and technical details, and recent oncologic and functional outcomes. Lastly, the novel characteristics of distal rectal cancer, such as pelvic sidewall and inguinal lymph node metastases, will be discussed along with its tailored and individualized treatment approach.
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Affiliation(s)
- Cristopher Varela
- Coloproctology Unit, Department of General Surgery, Hospital Dr. Domingo Luciani, Caracas, Venezuela
| | - Nam Kyu Kim
- Department of Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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Sun P, Liu Z, Guan X, Luo S, Cai XH, Li JW, Wang XS. Laparoscopic radical right hemicolectomy with transrectal-specimen extraction: a novel natural-orifice specimen-extraction procedure. Gastroenterol Rep (Oxf) 2020; 9:182-184. [PMID: 34026227 PMCID: PMC8128022 DOI: 10.1093/gastro/goaa047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/17/2019] [Accepted: 01/21/2020] [Indexed: 12/19/2022] Open
Affiliation(s)
- Peng Sun
- Department of Colorectal Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China.,Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University Harbin, Harbin, Heilongjiang, P. R. China
| | - Zheng Liu
- Department of Colorectal Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Xu Guan
- Department of Colorectal Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Shou Luo
- Department of Gastrointestinal Surgery, Shenzhen Hospital, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, Guangdong, P. R. China
| | - Xu-Hao Cai
- Department of Gastrointestinal Surgery, Shenzhen Hospital, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, Guangdong, P. R. China
| | - Jing-Wen Li
- Department of Gastrointestinal Surgery, Shenzhen Hospital, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, Guangdong, P. R. China
| | - Xi-Shan Wang
- Department of Colorectal Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China.,Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University Harbin, Harbin, Heilongjiang, P. R. China
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Abstract
Minimally invasive techniques continue to transform the field of colorectal surgery. Because traditional surgical approaches for rectal cancer are associated with significant mortality and morbidity, developing less invasive approaches to this disease is paramount. Natural orifice transluminal endoscopic surgery (NOTES), commonly known as "no incision surgery," represents the ultimate minimally invasive approach to disease. Although transgastric and transvaginal approaches for NOTES surgery were the initially explored, a transrectal approach for colorectal disease is intuitive given that it makes use of the resected organ for transluminal access. Furthermore, the transanal approach allows for improved, precise visualization of the presacral mesorectal plane compared with an abdominal viewpoint, particularly in the narrow, male pelvis. Finally, experience with existing transanal platforms that have been used for decades for local excision of rectal disease made the development of a transanal approach to total mesorectal excision (TME) feasible. Here, we will review the evolution of minimally invasive and transanal surgical techniques that allowed for the development of transanal TME and its introduction into clinical practice.
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Affiliation(s)
- Heather Carmichael
- Department of Surgery, University of Colorado School of Medicine, Aurora, Colorado
| | - Patricia Sylla
- Icahn School Medicine at Mount Sinai, New York, New York
- Division of Colon and Rectal Surgery, Department of Surgery, Mount Sinai Hospital, New York, New York
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Transanal Minimally Invasive Surgery for Local Excision of Benign and Malignant Rectal Neoplasia: Outcomes From 200 Consecutive Cases With Midterm Follow Up. Ann Surg 2019; 267:910-916. [PMID: 28252517 DOI: 10.1097/sla.0000000000002190] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE This study describes the outcomes for 200 consecutive transanal minimally invasive surgery (TAMIS) local excision (LE) for rectal neoplasia. BACKGROUND TAMIS is an advanced transanal platform that can result in high quality LE of rectal neoplasia. METHODS Consecutive patients from July 1, 2009 to December 31, 2015 from a prospective institutional registry were analyzed. Indication for TAMIS LE was endoscopically unresectable benign lesions or histologically favorable early rectal cancers. The primary endpoints were resection quality, neoplasia recurrence, and oncologic outcomes. Kaplan-Meier survival analyses were used to describe disease-free survival (DFS) for patients with rectal adenocarcinoma that did not receive immediate salvage radical surgery. RESULTS There were 200 elective TAMIS LE procedures performed in 196 patients for 90 benign and 110 malignant lesions. Overall, a 7% margin positivity and 5% fragmentation rate was observed. The mean operative time for TAMIS was 69.5 minutes (SD 37.9). Postoperative morbidity was recorded in 11% of patients, with hemorrhage (9%), urinary retention (4%), and scrotal or subcutaneous emphysema (3%) being the most common. The mean follow up was 14.4 months (SD 17.4). Local recurrence occurred in 6%, and distant organ metastasis was noted in 2%. Mean time to local recurrence for malignancy was 16.9 months (SD 13.2). Cumulative DFS for patients with rectal adenocarcinoma was 96%, 93%, and 84% at 1-, 2-, and 3-years. CONCLUSIONS For carefully selected patients, TAMIS for local excision of rectal neoplasia is a valid option with low morbidity that maintains the advantages of organ preservation.
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Castaño Llano R, Puerta Díaz JD, Palacios Fuenmayor LJ, Uribe Moreno D. Cirugía mínimamente invasiva transanal (TAMIS): técnica y resultados de la experiencia inicial. ACTA ACUST UNITED AC 2019. [DOI: 10.22516/25007440.392] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Antecedentes: la cirugía transanal endoscópica es un abordaje mínimamente invasivo recientemente descrito, que provee una exposición superior y permite el acceso a las lesiones del recto en toda su extensión. Además, provee un riesgo menor de compromiso de los márgenes de resección, menores tasas de recurrencia y una menor morbimortalidad en comparación con la escisión transanal convencional o las remociones endoscópicas. Objetivos: se pretende describir la experiencia inicial y los resultados con la cirugía transanal mínimamente invasiva (transanal minimally invasive surgery, TAMIS) en términos de resecciones completas y posibles complicaciones relacionadas con el procedimiento. Materiales y métodos: esta una serie de casos con un seguimiento prospectivo de los pacientes con TAMIS. Se analizaron los resultados de 27 pacientes intervenidos en varios centros de Medellín, Colombia, entre enero de 2012 y diciembre de 2016, realizados con cirugía laparoscópica monopuerto (single-port laparoscopic surgery, SILS) (21 casos) o el GelPOINT® Path (6 casos), junto con el apoyo de la óptica del laparoscopio (16 pacientes) y del endoscopio flexible (11 pacientes). Resultados: se realizaron 27 TAMIS en el mismo número de pacientes, 10 mujeres (37 %) y 17 hombres fueron evaluados. Se realizó un seguimiento a los pacientes durante aproximadamente 12 meses, en promedio 32 meses. La edad promedio fue de 68 años (52-83 años). El tamaño promedio del tumor fue de 5,3 cm (2-9 cm) y la distancia promedio desde el margen anal fue de 7 cm (5-9 cm) Las complicaciones posoperatorias se dieron en 6 casos (22 %) Una perforación rectal se corrigió por vía laparoscópica en el mismo acto quirúrgico y otra por la misma vía transanal. Una estenosis rectal se manejó con dilatación digital, y hubo un caso de sangrado rectal menor, uno de retención urinaria y un paciente presentó un cáncer rectal avanzado a los tres meses de la resección con margen microscópico positivo (4 %). No hubo reingresos. La mortalidad por la intervención fue nula. La patología operatoria reportó la presencia de adenoma de bajo grado en 3 casos (11 %), de alto grado en 11 (41 %), adenocarcinoma in situ en 6 (22 %), tumor neuroendocrino en 5 pacientes (18 %), 1 caso de fibrosis cicatricial (4 %) y 1 de leiomioma (4 %). Limitaciones: los resultados no son extrapolables a la población general debido al poco número de intervenciones y la ejecución limitada a solo dos autores. Conclusiones: en nuestra experiencia inicial, TAMIS es un procedimiento mínimamente invasivo con una baja morbilidad posoperatoria, es curativa para lesiones benignas y para pacientes seleccionados con cáncer temprano.
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Jensen DRK, Jaensch C, Madsen AH. The accuracy of trans rectal ultrasonography (TRUS) in early-stage rectal cancer or benign adenomas. Scand J Gastroenterol 2019; 54:603-608. [PMID: 31090476 DOI: 10.1080/00365521.2019.1614662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Background: Screening for colorectal cancer in Denmark has resulted in more patients being diagnosed with benign adenomas and early-stage rectal cancer. In general, TRUS is accepted as a good modality for evaluating the above mentioned before deciding on surgery. Objective: To investigate the accuracy of TRUS in a clinical setting at the Region Hospital in Herning, Denmark. Study design: Retrospective cohort study from January 2016 to June 2018. Methods: Quantitative method. The cohort (117 patients) was recruited by searching for specific procedure codes. Data were collected by going through the electronic patient files. Results: TRUS predicted T0, T1, T2 and T3 with an accuracy of 91%, 35%, 43% and 20% respectively and an overall accuracy of 68%. A weighted Cohens kappa value of 0.30 (p ≤ .05). TRUS differentiated between T0/T1 with a sensitivity of 70%, specificity of 85% and an accuracy of 85% and kappa value of 0.44 (p ≤ .05). Conclusion: TRUS can with great precision establish whether the tumor is benign so correct local treatment can be instituted.
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Affiliation(s)
| | - Claudia Jaensch
- a Department of Surgery , Herning Regional Hospital , Herning , Denmark
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Affiliation(s)
- C Cunningham
- Oxford University Hospitals NHS Trust, Oxford, UK
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12
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Serra-Aracil X, Pallisera-Lloveras A, Mora-Lopez L, Rebasa P, Serra-Pla S, Navarro S. Perforation in the peritoneal cavity during transanal endoscopic microsurgery for rectal tumors: a real surgical complication with a challenging prognosis? Surg Endosc 2018; 33:1870-1879. [DOI: 10.1007/s00464-018-6466-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 09/18/2018] [Indexed: 01/20/2023]
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Peritoneal perforation during transanal endoscopic microsurgery is not associated with significant short-term complications. Surg Endosc 2018; 33:849-853. [PMID: 30022287 DOI: 10.1007/s00464-018-6351-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 07/06/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND In patients treated by transanal endoscopic microsurgery (TEM), breach of the peritoneal cavity is a feared intraoperative challenge. Our aim is to analyze predictors and short-term outcomes of patients with peritoneal perforation (TEM-P) when compared to similar patients with no peritoneal compromise (TEM-N). METHODS At St. Paul's Hospital, demographic, surgical, pathologic, and follow-up data for all patients treated by TEM is maintained in a prospectively populated database. A retrospective review was performed and two groups were established for comparison: TEM-P and TEM-N. Statistical analysis was performed using student's t or chi-squared test, where appropriate. RESULTS Of 619 patients treated by TEM between 2007 and 2016, 39 (6%) patients were in the TEM-P group and 580 (94%) in the TEM-N group. There were no differences between the groups in patient age, gender, histology, or tumor size. Patients who had peritoneal perforations had more proximal lesions (11 vs. 7 cm, p < 0.0001), anterior lesions (56 vs. 43%, p < 0.05), and longer operations (80 vs. 51 min, p < 0.005). While most defects were closed endoluminally, 2 patients with perforation were converted to transabdominal surgery. There was a difference in overall hospital stay with TEM-P patients staying on average 2 days in hospital with fewer patients managed as day surgery (31 vs. 73%, p < 0.0001). There were no mortalities or significant 30-day complications in the TEM-P group and only one patient required readmission. CONCLUSIONS The St. Paul's Hospital TEM experience suggests patients with peritoneal breach during TEM can be safely managed with outcomes similar to patients without peritoneal entry. Proximal, anterior lesions are at highest risk of peritoneal perforation.
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Atallah S, Hodges A, Larach SW. Direct target NOTES: prospective applications for next generation robotic platforms. Tech Coloproctol 2018; 22:363-371. [PMID: 29855814 DOI: 10.1007/s10151-018-1788-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 05/04/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND A new era in surgical robotics has centered on alternative access to anatomic targets and next generation designs include flexible, single-port systems which follow circuitous rather than straight pathways. Such systems maintain a small footprint and could be utilized for specialized operations based on direct organ target natural orifice transluminal endoscopic surgery (NOTES), of which transanal total mesorectal excision (taTME) is an important derivative. METHODS During two sessions, four direct target NOTES operations were conducted on a cadaveric model using a flexible robotic system to demonstrate proof-of-concept of the application of a next generation robotic system to specific types of NOTES operations, all of which required removal of a direct target organ through natural orifice access. These four operations were (a) robotic taTME, (b) robotic transvaginal hysterectomy in conjunction with (c) robotic transvaginal salpingo-oophorectomy, and in an ex vivo model, (d) trans-cecal appendectomy. RESULTS Feasibility was demonstrated in all cases using the Flex® Robotic System with Colorectal Drive. During taTME, the platform excursion was 17 cm along a non-linear path; operative time was 57 min for the transanal portion of the dissection. Robotic transvaginal hysterectomy was successfully completed in 78 min with transvaginal extraction of the uterus, although laparoscopic assistance was required. Robotic transvaginal unilateral salpingo-oophorectomy with transvaginal extraction of the ovary and fallopian tube was performed without laparoscopic assistance in 13.5 min. In an ex vivo model, a robotic trans-cecal appendectomy was also successfully performed for the purpose of demonstrating proof-of-concept only; this was completed in 24 min. CONCLUSIONS A flexible robotic system has the potential to access anatomy along circuitous paths, making it a suitable platform for direct target NOTES. The conceptual operations posed could be considered suitable for next generation robotics once the technology is optimized, and after further preclinical validation.
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Affiliation(s)
- S Atallah
- Endo-Surgical Center of Florida, Department of Colorectal Surgery, Florida Hospital, Orlando, FL, USA.
| | - A Hodges
- Nova Southeastern University, Davie, FL, USA
| | - S W Larach
- Endo-Surgical Center of Florida, Department of Colorectal Surgery, Florida Hospital, Orlando, FL, USA
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Serra-Aracil X, Gràcia R, Mora-López L, Serra-Pla S, Pallisera-Lloveras A, Labró M, Navarro-Soto S. How to deal with rectal lesions more than 15 cm from the anal verge through transanal endoscopic microsurgery. Am J Surg 2018; 217:53-58. [PMID: 29709273 DOI: 10.1016/j.amjsurg.2018.04.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 04/12/2018] [Accepted: 04/17/2018] [Indexed: 12/30/2022]
Abstract
BACKGROUND The aim of this study is to assess postoperative morbidity and mortality in tumors with a proximal margin 15 cm or more from the anal verge operated with transanal endoscopic microsurgery (TEM). METHODS This observational study of consecutive rectal tumor patients undergoing TEM was carried out from July 2004 to June 2017. We compared the results of rectal tumors at distances of ≥15 cm (group A) and <15 cm (group B) from the anal verge. RESULTS During the study period 667 patients were included: 118 in group A and 549 in group B. In the comparative analysis there were no significant differences in morbidity (p = 0.23), mortality (p = 0.32) or free margin involvement (p = 0.545). Differences were observed in terms of lesion size (p < 0.001), surgical time (p < 0.001) and peritoneal cavity perforation, which were all increased in group A. CONCLUSION TEM for lesions in the rectosigmoid junction is feasible and is not associated with higher morbidity or mortality.
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Affiliation(s)
- Xavier Serra-Aracil
- Coloproctology Unit. General and Digestive Surgery Service, Parc Tauli University Hospital, Sabadell, Universitat Autonoma de Barcelona, Parc Tauli s/n, 08208, Sabadell (Barcelona), Spain.
| | - Raquel Gràcia
- Coloproctology Unit. General and Digestive Surgery Service, Parc Tauli University Hospital, Sabadell, Universitat Autonoma de Barcelona, Parc Tauli s/n, 08208, Sabadell (Barcelona), Spain
| | - Laura Mora-López
- Coloproctology Unit. General and Digestive Surgery Service, Parc Tauli University Hospital, Sabadell, Universitat Autonoma de Barcelona, Parc Tauli s/n, 08208, Sabadell (Barcelona), Spain
| | - Sheila Serra-Pla
- Coloproctology Unit. General and Digestive Surgery Service, Parc Tauli University Hospital, Sabadell, Universitat Autonoma de Barcelona, Parc Tauli s/n, 08208, Sabadell (Barcelona), Spain
| | - Anna Pallisera-Lloveras
- Coloproctology Unit. General and Digestive Surgery Service, Parc Tauli University Hospital, Sabadell, Universitat Autonoma de Barcelona, Parc Tauli s/n, 08208, Sabadell (Barcelona), Spain
| | - Maritxell Labró
- Coloproctology Unit. General and Digestive Surgery Service, Parc Tauli University Hospital, Sabadell, Universitat Autonoma de Barcelona, Parc Tauli s/n, 08208, Sabadell (Barcelona), Spain
| | - Salvador Navarro-Soto
- Coloproctology Unit. General and Digestive Surgery Service, Parc Tauli University Hospital, Sabadell, Universitat Autonoma de Barcelona, Parc Tauli s/n, 08208, Sabadell (Barcelona), Spain
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Oliveira ALA, Zorron R, Oliveira FMMDE, Santos MBD, Scheffer JP, Rios M, Antunes F. Transcolonic Perirectal NOTES Access (PNA): A feasibility study with survival in swine model. AN ACAD BRAS CIENC 2018; 89:685-693. [PMID: 28562823 DOI: 10.1590/0001-3765201720160541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 01/23/2017] [Indexed: 12/22/2022] Open
Abstract
Transrectal access still has some unsolved issues such as spatial orientation, infection, access and site closure. This study presents a simple technique to perform transcolonic access with survival in a swine model series. A new technique for NOTES perirectal access to perform retroperitoneoscopy, peritoneoscopy, liver and lymphnode biopsies was performed in 6 pigs, using Totally NOTES technique. The specimens were extracted transanally. The flexible endoscope was inserted through a posterior transmural incision and the retrorectal space. Cultures of bacteria were documented for the retroperitoneal space and intra abdominal cavity after 14 days. Rectal site was closed using non-absorbable sutures. There was no bowel cleansing, nor preoperative fasting. The procedures were performed in 6 pigs through transcolonic natural orifice access using available endoscopic flexible instruments. All animals survived 14 days without complications, and cultures were negative. Histopathologic examination of the rectal closure site showed adequate healing of suture line and no micro abscesses. The results of feasibility and safety of experimental Transcolonic NOTES potentially brings new frontiers and future wider applications for minimally invasive surgery. The treatment of colorectal, abdominal and retroperitoneal diseases through a flexible Perirectal NOTES Access (PNA) is a promising new approach.
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Affiliation(s)
- André L A Oliveira
- Departamento de Cirurgia Veterinária, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, RJ, Brazil
| | | | | | - Marcelo B Dos Santos
- Departamento de Cirurgia Veterinária, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, RJ, Brazil
| | - Jussara P Scheffer
- Departamento de Cirurgia Veterinária, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, RJ, Brazil
| | - Marcelo Rios
- Clínica Veterinária-Gávea, Rio de Janeiro, RJ, Brazil
| | - Fernanda Antunes
- Departamento de Cirurgia Veterinária, Universidade Estadual do Norte Fluminense, Campos dos Goytacazes, RJ, Brazil
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Allaix ME, Arezzo A, Nestorović M, Galosi B, Morino M. Local excision for rectal cancer: a minimally invasive option. MINERVA CHIR 2018; 73:548-557. [PMID: 29658675 DOI: 10.23736/s0026-4733.18.07702-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Transanal excision (TAE) with conventional retractors and transanal endoscopic microsurgery (TEM) are two well established minimally invasive surgical options for the treatment of selected rectal cancers. TEM is nowadays considered the standard of care for the transanal excision of rectal tumors, since it is associated with significantly better quality of excision and lower rates of recurrence than TAE. When compared with rectal resection and total mesorectal excision, TEM has lower postoperative morbidity and better functional outcomes, with similar long-term survival rates in selected early rectal cancers. More recently, transanal minimally invasive surgery (TAMIS) has been developed as an alternative to TEM. Possible benefits of TAMIS are under evaluation.
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Affiliation(s)
- Marco E Allaix
- Department of Surgical Sciences, University of Turin, Turin, Italy
| | - Alberto Arezzo
- Department of Surgical Sciences, University of Turin, Turin, Italy
| | | | - Bianca Galosi
- Department of Surgical Sciences, University of Turin, Turin, Italy
| | - Mario Morino
- Department of Surgical Sciences, University of Turin, Turin, Italy -
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Bloomfield I, Van Dalen R, Lolohea S, Wu L. Transanal endoscopic microsurgery: a New Zealand experience. ANZ J Surg 2017; 88:592-596. [DOI: 10.1111/ans.14142] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 06/07/2017] [Accepted: 06/11/2017] [Indexed: 01/27/2023]
Affiliation(s)
- Ian Bloomfield
- Department of Colorectal Surgery; Waikato Hospital; Hamilton New Zealand
| | - Roelof Van Dalen
- Department of Colorectal Surgery; Waikato Hospital; Hamilton New Zealand
| | - Simione Lolohea
- Department of Colorectal Surgery; Waikato Hospital; Hamilton New Zealand
| | - Linus Wu
- Department of Colorectal Surgery; Waikato Hospital; Hamilton New Zealand
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Mege D, Petrucciani N, Maggiori L, Panis Y. Peritoneal perforation is less a complication than an expected event during transanal endoscopic microsurgery: experience from 194 consecutive cases. Tech Coloproctol 2017; 21:729-736. [PMID: 28871476 DOI: 10.1007/s10151-017-1676-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 07/27/2017] [Indexed: 01/29/2023]
Abstract
BACKGROUND Indications for transanal endoscopic microsurgery (TEM) have been extended to technically challenging tumors, which may be associated with an increased risk of peritoneal perforation (PP). The aim of the present study was to investigate the occurrence, management and outcome of PP in patients having TEM. METHODS All the patients who had TEM for rectal adenoma or adenocarcinoma in our unit were included. Patients in whom PP occurred (Group A) were compared to those without PP (Group B). RESULTS From 2007 to 2015, 194 TEM (116 men, median age 66 [range 21-100] years) were divided into Groups A (n = 28, 14%) and B (n = 166). The latter group included four patients, in whom a laparoscopy did not confirm suspicion of PP made during TEM. In 2 of 28 patients (7%), the diagnosis of PP was made postoperatively during reoperation for peritonitis. For the 26 other patients (93%), routine exploratory laparoscopy was performed with suture of the peritoneal defect on the pouch of Douglas in 24 cases and a rectal suture alone in 2 cases. Independent predictive factors for PP were: distance from the anal verge >10 cm (OR = 3.6), circumferential tumor (OR = 3.0) and anterior location (OR = 2.7). Hospital stay was significantly longer in Group A (7.5 [3-31] days) than in Group B (4 [1-38] days; p < 0.0001), whereas there was no significant difference regarding postoperative morbidity and recurrence rate. CONCLUSIONS Our results suggested that PP is not a very rare event during TEM, especially in anterior, circumferential and/or high rectal tumors. Laparoscopic treatment of PP is feasible and safe. The occurrence of PP is not associated with poor oncologic results.
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Affiliation(s)
- D Mege
- Department of Colorectal Surgery, Beaujon Hospital, Paris University, 100 Boulevard du Général Leclerc, 92110, Clichy, France
| | - N Petrucciani
- Department of Colorectal Surgery, Beaujon Hospital, Paris University, 100 Boulevard du Général Leclerc, 92110, Clichy, France
| | - L Maggiori
- Department of Colorectal Surgery, Beaujon Hospital, Paris University, 100 Boulevard du Général Leclerc, 92110, Clichy, France
| | - Y Panis
- Department of Colorectal Surgery, Beaujon Hospital, Paris University, 100 Boulevard du Général Leclerc, 92110, Clichy, France.
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deBeche-Adams T, Hassan I, Haggerty S, Stefanidis D. Transanal Minimally Invasive Surgery (TAMIS): a clinical spotlight review. Surg Endosc 2017; 31:3791-3800. [DOI: 10.1007/s00464-017-5636-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 06/03/2017] [Indexed: 02/07/2023]
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Dulskas A, Kilius A, Petrulis K, Samalavicius NE. Transanal Endoscopic Microsurgery for Patients With Rectal Tumors: A Single Institution's Experience. Ann Coloproctol 2017; 33:23-27. [PMID: 28289660 PMCID: PMC5346777 DOI: 10.3393/ac.2017.33.1.23] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 12/11/2016] [Indexed: 12/29/2022] Open
Abstract
PURPOSE The purpose of this study was to look at our complication rates and recurrence rates, as well as the need for further radical surgery, in treating patients with benign and early malignant rectal tumors by using transanal endoscopic microsurgery (TEM). METHODS Our study included 130 patients who had undergone TEM for rectal adenomas and early rectal cancer from December 2009 to December 2015 at the Department of Surgical Oncology, National Cancer Institute, Lithuania. Patients underwent digital and endoscopic evaluation with multiple biopsies. For preoperative staging, pelvic magnetic resonance imaging or endorectal ultrasound was performed. We recorded the demographics, operative details, final pathologies, postoperative lengths of hospital stay, postoperative complications, and recurrences. RESULTS The average tumor size was 2.8 ± 1.5 cm (range, 0.5-8.3 cm). 102 benign (78.5%) and 28 malignant tumors (21.5%) were removed. Of the latter, 23 (82.1%) were pT1 cancers and 5 (17.9%) pT2 cancers. Of the 5 patients with pT2 cancer, 2 underwent adjuvant chemoradiotherapy, 1 underwent an abdominoperineal resection, 1 refused further treatment and 1 was lost to follow up. No intraoperative complications occurred. In 7 patients (5.4%), postoperative complications were observed: urinary retention (4 patients, 3.1%), postoperative hemorrhage (2 patients, 1.5%), and wound dehiscence (1 patient, 0.8%). All complications were treated conservatively. The mean postoperative hospital stay was 2.3 days. CONCLUSION TEM in our experience demonstrated low complication and recurrence rates. This technique is recommended for treating patients with a rectal adenoma and early rectal cancer and has good prognosis.
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Affiliation(s)
- Audrius Dulskas
- Centre of Oncosurgery, National Cancer Institute, Vilnius, Lithuania
| | - Alfredas Kilius
- Centre of Oncosurgery, National Cancer Institute, Vilnius, Lithuania
| | - Kestutis Petrulis
- Centre of Oncosurgery, National Cancer Institute, Vilnius, Lithuania
| | - Narimantas E Samalavicius
- Centre of Oncosurgery, National Cancer Institute, Clinic of Internal, Family Medicine and Oncology, Faculty of Medicine, Vilnius, Lithuania
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22
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Current Controversies in Transanal Surgery for Rectal Cancer. Surg Laparosc Endosc Percutan Tech 2016; 26:431-438. [DOI: 10.1097/sle.0000000000000357] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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23
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Laparoscopy following peritoneal entry during transanal endoscopic microsurgery may increase the safety and maximize the benefits of the transanal excision. Tech Coloproctol 2016; 20:221-6. [DOI: 10.1007/s10151-016-1436-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Accepted: 01/15/2016] [Indexed: 12/15/2022]
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24
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Allaix ME, Arezzo A, Morino M. Transanal endoscopic microsurgery for rectal cancer: T1 and beyond? An evidence-based review. Surg Endosc 2016; 30:4841-4852. [DOI: 10.1007/s00464-016-4818-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Accepted: 02/04/2016] [Indexed: 12/17/2022]
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25
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Restivo A, Zorcolo L, D'Alia G, Cocco F, Cossu A, Scintu F, Casula G. Risk of complications and long-term functional alterations after local excision of rectal tumors with transanal endoscopic microsurgery (TEM). Int J Colorectal Dis 2016; 31:257-66. [PMID: 26298182 DOI: 10.1007/s00384-015-2371-y] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/13/2015] [Indexed: 02/04/2023]
Abstract
INTRODUCTION Transanal endoscopic microsurgery (TEM) is a consolidated technique for the excision of rectal tumors. However, many aspects relating to its morbidity, risk of functional alterations, and therapeutic outcomes are still unclear. The aim of this study was to assess the rate of morbidity and fecal incontinence after TEM, and to identify associated risk factors. METHODS We prospectively recorded the clinical data of 157 patients who underwent TEM from 1996 to 2013. Among these, 89 patients answered a questionnaire for the assessment of fecal continence at a median follow-up time of 40 months. RESULTS Intraoperative and postoperative TEM complication rates were 3.8 and 20.4%. The mortality rate was 0.6%. A distance from the anal verge of more than 6 cm correlated with a higher risk of perforation, while patients with cancer were more likely to have postoperative bleeding. Incontinence was reported by 32 (36%) patients, of which 7 (8%) experienced transitory symptoms only, while 25 (28%) reported persistent symptoms. We found a correlation between patients receiving preoperative radiotherapy (RT) and the development of fecal incontinence. The recurrence rate was 3% (1/32) in pT1, 80% (4/5) in pT2, and 100% (1/1) in pT3. After radiotherapy, 7% (1/9) showed a good response (pT0-1), and 18% (2/7) showed no response (pT2-3). CONCLUSIONS TEM is associated with low morbidity but the risk of developing functional alterations is not negligible and should be discussed with the patient before the operation. Good oncological outcomes are possible for early invasive cancers and for selected advanced cancers following a good response to preoperative RT.
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Affiliation(s)
- Angelo Restivo
- Department of Surgical Sciences, University of Cagliari, Cagliari, Italy. .,Chirurgia Generale M - Colorectal Center, AOU Cagliari, Cagliari, Italy.
| | - Luigi Zorcolo
- Department of Surgical Sciences, University of Cagliari, Cagliari, Italy.,Chirurgia Generale M - Colorectal Center, AOU Cagliari, Cagliari, Italy
| | - Giuseppe D'Alia
- Chirurgia Generale M - Colorectal Center, Digestive Surgical Endoscopy section, AOU Cagliari, Cagliari, Italy
| | - Francesca Cocco
- Department of Surgical Sciences, University of Cagliari, Cagliari, Italy
| | - Andrea Cossu
- Department of Surgical Sciences, University of Cagliari, Cagliari, Italy
| | - Francesco Scintu
- Department of Surgical Sciences, University of Cagliari, Cagliari, Italy.,Chirurgia Generale M - Colorectal Center, AOU Cagliari, Cagliari, Italy
| | - Giuseppe Casula
- Department of Surgical Sciences, University of Cagliari, Cagliari, Italy
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Abstract
Transanal endoscopic microsurgery (TEM) was developed by Professor Gerhard Buess 30 years ago at the dawn of minimally invasive surgery. TEM utilizes a closed proctoscopic system whereby endoluminal surgery is accomplished with high-definition magnification, constant CO2 insufflation, and long-shafted instruments. The end result is a more precise excision and closure compared to conventional instrumentation. Virtually any benign lesion can be addressed with this technology; however, proper patient selection is paramount when using it for cancer.
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Arezzo A, Bianco F, Agresta F, Coco C, Faletti R, Krivocapic Z, Rotondano G, Santoro GA, Vettoretto N, De Franciscis S, Belli A, Romano GM. Practice parameters for early rectal cancer management: Italian Society of Colorectal Surgery (Società Italiana di Chirurgia Colo-Rettale; SICCR) guidelines. Tech Coloproctol 2015; 19:587-93. [PMID: 26408174 DOI: 10.1007/s10151-015-1362-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 05/27/2015] [Indexed: 02/07/2023]
Abstract
The introduction of new technologies for diagnosis and screening programs led to an increasing rate of early detection of colorectal cancer. This, associated with the evolution of endoscopic techniques of local excision, led to the assessment of new strategies to reduce morbidity related to treatment, especially for early rectal cancer (ERC). Nevertheless, the definition of ERC and its staging and treatment algorithm are still under debate. The Italian Society of Colorectal Surgery developed practice guidelines to provide recommendations on the diagnosis, staging and treatment of ERC. A systematic review on the topic was performed by a multidisciplinary group of experts selected based on their clinical and scientific expertise in endoscopy, endoscopic ultrasound, magnetic resonance and surgery, with the aid of an external international audit.
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Affiliation(s)
- A Arezzo
- Department of Surgical Sciences, University of Turin, Turin, Italy
| | - F Bianco
- Department of Surgical Oncology, Istituto Nazionale Tumori "Fondazione G. Pascale"-IRCCS, Naples, Italy
| | - F Agresta
- Department of General Surgery, Ulss1 9 of the Veneto, Civic Hospital, Adria, TV, Italy
| | - C Coco
- Department of Surgical Sciences, Catholic University of the Sacred Heart, Rome, Italy
| | - R Faletti
- Department of Surgical Sciences, Radiology Institute, University Hospital City of Health and Science, Turin University, Turin, Italy
| | - Z Krivocapic
- Institute for Digestive Disease, Clinical Center of Serbia, University of Belgrade, Belgrade, Serbia
| | - G Rotondano
- Department of Gastroenterology, Maresca Hospital, Torre del Greco, NA, Italy
| | - G A Santoro
- Department of Colorectal Surgery, Digestive Disease Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, UAE
| | - N Vettoretto
- Department of General Surgery, Montichiari Hospital, Civic Hospitals of Brescia, Brescia, Italy
| | - S De Franciscis
- Department of Surgical Oncology, Istituto Nazionale Tumori "Fondazione G. Pascale"-IRCCS, Naples, Italy
| | - A Belli
- Department of Surgical Oncology, Istituto Nazionale Tumori "Fondazione G. Pascale"-IRCCS, Naples, Italy
| | - G M Romano
- Department of Surgical Oncology, Istituto Nazionale Tumori "Fondazione G. Pascale"-IRCCS, Naples, Italy.
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Molina G, Bordeianou L, Shellito P, Sylla P. Transanal endoscopic resection with peritoneal entry: a word of caution. Surg Endosc 2015; 30:1816-25. [PMID: 26264697 DOI: 10.1007/s00464-015-4452-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 07/13/2015] [Indexed: 12/30/2022]
Abstract
BACKGROUND Peritoneal entry during transanal endoscopic microsurgery (TEM) can usually be managed transanally with full-thickness suture closure by experienced operators. The preliminary safety of transanal minimally invasive surgery (TAMIS) has been demonstrated, but the reported experience with upper rectal tumors is limited. The incidence and management of peritoneal entry during transanal endoscopic surgery across various platforms have not been previously evaluated. METHODS Retrospective analysis of a prospectively maintained database of all transanal endoscopic resections performed at a single institution between January 2008 and December 2014 was conducted. Cases with and without peritoneal entry were evaluated with respect to transanal platform used, surgical indication, size, location and distance from the anal verge, and incidence of postoperative complications. RESULTS A total of 78 transanal endoscopic procedures were performed on 76 patients using the rigid transanal endoscopic operation (TEO, 65.4 %), TEM (26.9 %), and TAMIS platform (7.7 %). The most common surgical indication included endoscopically unresectable adenomas (50 %). The average distance of lesions from the anal verge (AV) was 9.6 cm (range 4-20 cm). Peritoneal entry occurred in 22 cases (28.2 %). Platform used (TAMIS vs. rigid, p < 0.05), mean distance from the AV (p < 0.0001), location along the rectum (p = 0.01), and mean specimen size (p = 0.01) were associated with a higher likelihood of peritoneal entry. All rectal defects associated with peritoneal entry were successfully closed transanally except for two (TEM and TEO) cases that required conversion to laparoscopic low anterior resection and laparoscopic Hartmann's, respectively. There were four TAMIS cases that required conversion to TEO platforms. CONCLUSION In this high-risk TEM, TEO, and TAMIS series (one-third of rectal lesions located in the upper rectum), 91 % of all peritoneal entries were managed transanally without increased morbidity. TAMIS for upper rectal lesions was associated with a high risk of complicated peritoneal entry requiring conversion to a rigid platform.
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Affiliation(s)
- George Molina
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
| | | | - Paul Shellito
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Patricia Sylla
- Department of Surgery, Mount Sinai Hospital, 5 East 98th Street Box 1249, New York, NY, 10029, USA.
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Issa N, Murninkas A, Schmilovitz-Weiss H, Agbarya A, Powsner E. Transanal Endoscopic Microsurgery After Neoadjuvant Chemoradiotherapy for Rectal Cancer. J Laparoendosc Adv Surg Tech A 2015; 25:617-24. [PMID: 26258267 DOI: 10.1089/lap.2014.0647] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Radical rectal resection following neoadjuvant chemoradiation therapy (CRT) for locally advanced rectal cancer is accompanied by relatively high morbidity. Local excision of rectal cancer may be more appropriate for some frail patients with severe comorbidities. Transanal endoscopic microsurgery (TEM), consisting of local excision of selected rectal cancers, has been associated with low rates of postoperative complications. Because neoadjuvant CRT for rectal cancer may be associated with increased complications, the suitability of TEM following CRT is still unclear. In this study we aimed to assess the clinical outcomes of patients undergoing TEM following neoadjuvant CRT. PATIENTS AND METHODS This study retrospectively analyzed all patients undergoing TEM for malignant rectal tumor in our institution between 2004 and 2010. They were divided into those who received CRT (CRT group) and those without CRT (non-CRT group). Demographics and clinical data were compared. RESULTS Forty-four of 97 patients who underwent TEM were included: 13 CRT and 31 non-CRT. Age, comorbidities, and the duration of the procedure were similar for both groups. There were no significant group differences in tumor diameter (2.1 cm [range, 0.5-3.5 cm] and 2.9 cm [range, 0.5-4.2 cm], respectively; P=.125) or distance of the lower part of the tumor from the anal verge (6.7 cm [range, 5-10 cm] and 7.7 cm [range, 5-15 cm], respectively; P=.285). Two non-CRT patients had peritoneal entry, and 1 of them underwent protective ileostomy because of insecure rectal defect closure. One non-CRT patient underwent a re-operation for postoperative bleeding. The other perioperative complications were minor and included urinary retention requiring catheter placement (2 patients in each group), pulmonary edema (1 non-CRT patient), and pneumonia (1 non-CRT patient). All complications were managed conservatively. There was no wound disruption, major complication, or mortality in either group. CONCLUSIONS With proper patient selection, TEM can be performed safely following CRT, without major complication or increased postoperative morbidity.
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Affiliation(s)
- Nidal Issa
- 1 Department of Surgery B, Rabin Medical Center , Petah-Tikva, Israel .,2 Sackler School of Medicine, Tel-Aviv University , Tel Aviv, Israel
| | - Alejandro Murninkas
- 1 Department of Surgery B, Rabin Medical Center , Petah-Tikva, Israel .,2 Sackler School of Medicine, Tel-Aviv University , Tel Aviv, Israel
| | - Hemda Schmilovitz-Weiss
- 2 Sackler School of Medicine, Tel-Aviv University , Tel Aviv, Israel .,3 Department of Gastroenterology, Hasharon Hospital, Rabin Medical Center , Petah-Tikva, Israel
| | - Abed Agbarya
- 4 Oncology Community Unit, Northern District, Clalit Health Services , Nazareth, Israel
| | - Eldad Powsner
- 1 Department of Surgery B, Rabin Medical Center , Petah-Tikva, Israel .,2 Sackler School of Medicine, Tel-Aviv University , Tel Aviv, Israel
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Vledder MGV, Doornebosch PG, de Graaf EJR. Transanal excision of benign rectal polyps: Indications, technique, and outcomes. SEMINARS IN COLON AND RECTAL SURGERY 2015. [DOI: 10.1053/j.scrs.2014.10.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Talbott VA, Whiteford MH. Complications of transanal endoscopic surgery. SEMINARS IN COLON AND RECTAL SURGERY 2015. [DOI: 10.1053/j.scrs.2014.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Hakiman H, Pendola M, Fleshman JW. Replacing Transanal Excision with Transanal Endoscopic Microsurgery and/or Transanal Minimally Invasive Surgery for Early Rectal Cancer. Clin Colon Rectal Surg 2015; 28:38-42. [PMID: 25733972 PMCID: PMC4336902 DOI: 10.1055/s-0035-1545068] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The use of local resection of rectal polyps and early rectal cancer has progressed to become the standard of care in most institutions with a colorectal surgery specialist. The use of transanal excision (TAE) with anorectal retractors and standard instrumentation has been supplanted by the application of endoscopic techniques which allow direct video augmented visualization. The transanal endoscopic microsurgery method provides a 3D view and works under a constant flow of air to keep the rectal vault open. Instruments capable of accomplishing a surgical excision and suture closure work through a long 4 cm tube set at the anal canal. The newest version of TAE is transanal minimally invasive surgery which is similar to a single-site laparoscopic technique using a hand access port at the anal canal to maintain a seal for insufflation of the rectum, regular 2D video camera for visualization, and laparoscopic instrumentation through the port in the anus. Each of these techniques is described in detail and the outcomes compared, which show the progress being made in this area of colorectal surgery.
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Affiliation(s)
- Hekmat Hakiman
- Division of Colorectal Surgery, Department of Surgery, Baylor University Medical Center at Dallas, Dallas, Texas
| | - Michael Pendola
- Division of Colorectal Surgery, Department of Surgery, Baylor University Medical Center at Dallas, Dallas, Texas
| | - James W. Fleshman
- Division of Colorectal Surgery, Department of Surgery, Baylor University Medical Center at Dallas, Dallas, Texas
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33
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Maguire L, Sylla P. Transanal endoscopic surgery as a pathway to NOTES. SEMINARS IN COLON AND RECTAL SURGERY 2015. [DOI: 10.1053/j.scrs.2014.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Morino M, Risio M, Bach S, Beets-Tan R, Bujko K, Panis Y, Quirke P, Rembacken B, Rullier E, Saito Y, Young-Fadok T, Allaix ME. Early rectal cancer: the European Association for Endoscopic Surgery (EAES) clinical consensus conference. Surg Endosc 2015; 29:755-73. [DOI: 10.1007/s00464-015-4067-3] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 01/07/2015] [Indexed: 12/13/2022]
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Araujo SEA, Mendes CRS, Carvalho GL, Lyra M. Surgeons’ perceptions of transanal endoscopic microsurgery using minilaparoscopic instruments in a simulator: the thinner the better. Surg Endosc 2014; 29:2331-8. [DOI: 10.1007/s00464-014-3956-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Accepted: 10/25/2014] [Indexed: 01/11/2023]
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Abstract
BACKGROUND Relative contraindications for transanal endoscopic microsurgery include high, anterior-based lesions for full-thickness excisions because of worries about entering the peritoneal cavity. Concerns exist regarding safety and oncological outcome. OBJECTIVE We examined the outcomes of transanal endoscopic microsurgery excisions with entry into the peritoneal cavity and compared them with those that did not to address our hypothesis that entry is safe with no ill infectious or oncological consequences. DESIGN This single-institution retrospective review uses a prospectively maintained database. SETTINGS This study was conducted at a tertiary colorectal surgery referral center. PATIENTS From 1997 to 2012, we identified 303 patients who underwent transanal endoscopic microsurgery resections, with 26 patients having entrance into the peritoneal cavity. MAIN OUTCOME MEASURES Perioperative data, postoperative morbidities, delayed morbidities, and oncological outcomes were the primary outcomes measured. RESULTS Of 26 patients, there were 8 women with a mean age of 67.5 years. Mean BMI was 31 kg/m, and ASA class was III or IV in 69%. Mean superior border of the lesion was 10.4 cm (4.5-16). Forty-eight percent had anterior-based lesions. Anterior location, level from anorectal ring, and diagnosis of cancer were significantly higher in the peritoneal entry group (p = 0.003, p = 0.007, and p = 0.007). Preoperative diagnoses included 16 adenocarcinomas, 8 polyps, and 2 carcinoid tumors. Thirteen patients had preoperative chemoradiation. Median estimated blood loss was 15 mL (5-400), and 3 patients underwent diversions. Median time to discharge was 3 days (2-10). There were no perioperative mortalities. Median follow-up time was 21.0 months. There was 1 local recurrence (3.8%), and there was no development of carcinomatosis. LIMITATIONS This review was limited by its retrospective nature. CONCLUSIONS High anterior location rectal lesions should be considered candidates for transanal endoscopic microsurgery excision in experienced hands. After obtaining considerable transanal endoscopic microsurgery experience, our use of transanal endoscopic microsurgery in a high-risk patient population allowed us to definitively treat 88% of patients without an abdominal operation and the need for a temporary or permanent colostomy. Theoretic concerns of abscess or carcinomatosis were not experienced (see Video, Supplemental Digital Content 1, http://links.lww.com/DCR/A154).
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Zorron R, Phillips HN, Wynn G, Neto MPG, Coelho D, Vassallo RC. "Down-to-Up" transanal NOTES Total mesorectal excision for rectal cancer: Preliminary series of 9 patients. J Minim Access Surg 2014; 10:144-50. [PMID: 25013331 PMCID: PMC4083547 DOI: 10.4103/0972-9941.134878] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Accepted: 07/26/2013] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND: Applications for natural orifice translumenal endoscopic surgery (NOTES) to access the abdominal cavity have increased in recent years. Despite potential advantages of transanal and transcolonic NOTES for colorectal pathology, it has not been widely applied in the clinical setting. This study describes a series of nine patients for whom we performed transanal retrograde (“Down-to-Up”) total mesorectal excision for rectal cancer. MATERIALS AND METHODS: Under IRB approval, informed consent was obtained from each patient with rectal adenocarcinoma. Rectosigmoidectomy with total mesorectal excision was performed using low rectal translumenal access to the mesorectal fascia and subsequent dissection in a retrograde fashion. This was achieved using either a single port device or flexible colonoscope with endoscopic instrumentation and laparoscopic assistance. This was followed by transanal extraction of the specimen and hand-sewn anastomosis. RESULTS: Mean operative time was 311 min. Mean hospital stay was 7.56 days. Complications occurred in two patients, and consisted of one anastomotic leakage with reoperation and one intraoperative conversion to open surgery because of impossibility to dissect the specimen. TME specimen integrity was adequate in six patients. CONCLUSION: This series suggests that a retrograde mesorectal dissection via a NOTES technique is feasible in patients with rectal adenocarcinoma. This technique may act as a complimentary part of operative treatment for rectal cancer alongside other minimally invasive strategies. Long-term follow up will be needed to assess oncological results.
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Affiliation(s)
- Ricardo Zorron
- Innovative Surgery Division, Klinikum Bremerhaven Reinkenheide, Germany ; Department of Surgery, Hospital Municipal Miguel Couto, Rio de Janeiro, Brazil
| | - Henrique N Phillips
- Department of Surgery, Hospital Municipal Miguel Couto, Rio de Janeiro, Brazil
| | - Greg Wynn
- ICENI Centre, Colchester, United Kingdom
| | | | - Djalma Coelho
- Department of Surgery, Hospital Municipal Miguel Couto, Rio de Janeiro, Brazil
| | - Ricardo C Vassallo
- Department of Surgery, Hospital Municipal Miguel Couto, Rio de Janeiro, Brazil
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Zorron R, Phillips HN, Wynn G, Neto MPG, Coelho D, Vassallo RC. "Down-to-Up" transanal NOTES Total mesorectal excision for rectal cancer: Preliminary series of 9 patients. J Minim Access Surg 2014. [PMID: 25013331 DOI: 10.4103/0972-9941.134878jmas-10-144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Applications for natural orifice translumenal endoscopic surgery (NOTES) to access the abdominal cavity have increased in recent years. Despite potential advantages of transanal and transcolonic NOTES for colorectal pathology, it has not been widely applied in the clinical setting. This study describes a series of nine patients for whom we performed transanal retrograde ("Down-to-Up") total mesorectal excision for rectal cancer. MATERIALS AND METHODS Under IRB approval, informed consent was obtained from each patient with rectal adenocarcinoma. Rectosigmoidectomy with total mesorectal excision was performed using low rectal translumenal access to the mesorectal fascia and subsequent dissection in a retrograde fashion. This was achieved using either a single port device or flexible colonoscope with endoscopic instrumentation and laparoscopic assistance. This was followed by transanal extraction of the specimen and hand-sewn anastomosis. RESULTS Mean operative time was 311 min. Mean hospital stay was 7.56 days. Complications occurred in two patients, and consisted of one anastomotic leakage with reoperation and one intraoperative conversion to open surgery because of impossibility to dissect the specimen. TME specimen integrity was adequate in six patients. CONCLUSION This series suggests that a retrograde mesorectal dissection via a NOTES technique is feasible in patients with rectal adenocarcinoma. This technique may act as a complimentary part of operative treatment for rectal cancer alongside other minimally invasive strategies. Long-term follow up will be needed to assess oncological results.
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Affiliation(s)
- Ricardo Zorron
- Innovative Surgery Division, Klinikum Bremerhaven Reinkenheide, Germany ; Department of Surgery, Hospital Municipal Miguel Couto, Rio de Janeiro, Brazil
| | - Henrique N Phillips
- Department of Surgery, Hospital Municipal Miguel Couto, Rio de Janeiro, Brazil
| | - Greg Wynn
- ICENI Centre, Colchester, United Kingdom
| | | | - Djalma Coelho
- Department of Surgery, Hospital Municipal Miguel Couto, Rio de Janeiro, Brazil
| | - Ricardo C Vassallo
- Department of Surgery, Hospital Municipal Miguel Couto, Rio de Janeiro, Brazil
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McLemore EC, Weston LA, Coker AM, Jacobsen GR, Talamini MA, Horgan S, Ramamoorthy SL. Transanal minimally invasive surgery for benign and malignant rectal neoplasia. Am J Surg 2014; 208:372-81. [PMID: 24832238 DOI: 10.1016/j.amjsurg.2014.01.006] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Revised: 12/27/2013] [Accepted: 01/05/2014] [Indexed: 12/16/2022]
Abstract
BACKGROUND Transanal minimally invasive surgery (TAMIS), an alternative technique to transanal endoscopic microsurgery, was developed in 2009. Herein, we describe our initial experience using TAMIS for benign and malignant rectal neoplasia. METHODS This is an institutional review board approved, retrospective case series report. RESULTS TAMIS was performed in 32 patients for rectal adenoma (13), adenocarcinoma (16), and carcinoid (3). There were 14 women, with mean age 62 ± 15 years and body mass index 28 ± 5 kg/m(2). Lesion size ranged from .5 to 8.5 cm, distance from the dentate line 1 to 11 cm, and circumference of the lesion 10% to 100%. The mean operative time was 123 ± 62 minutes. Mean hospital length of stay was 2.5 ± 2 days. Complications included urinary tract infection (1), Clostridium difficile diarrhea (1), atrial fibrillation (1), rectal stenosis (1), and rectal bleeding (1). CONCLUSION TAMIS using a disposable transanal access platform is a safe and effective method to remove rectal lesions in this case series.
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Affiliation(s)
| | - Lynn A Weston
- Department of Surgery, Scripps Health Systems, San Diego, CA, USA
| | - Alisa M Coker
- Department of Surgery, University of California, San Diego, CA, USA
| | - Garth R Jacobsen
- Department of Surgery, University of California, San Diego, CA, USA
| | - Mark A Talamini
- Department of Surgery, University of California, San Diego, CA, USA
| | - Santiago Horgan
- Department of Surgery, University of California, San Diego, CA, USA
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Abstract
BACKGROUND Transanal endoscopic microsurgery has gained increasing popularity as a treatment alternative for early stage rectal neoplasms. With continued advances in technique and experience, more proximal rectal tumors are being surgically managed by using transanal endoscopic microsurgery with an intraperitoneal anastomosis. OBJECTIVE The purpose of this study was to review the outcomes of patients who have undergone intraperitoneal anastomosis with the use of the transanal endoscopic microsurgery technique. DESIGN A prospective, single-surgeon database documented 445 consecutive patients undergoing transanal endoscopic microsurgery from October 1, 1996 through January 1, 2012. We retrospectively reviewed information from all patients who underwent transanal endoscopic microsurgery with an intraperitoneal anastomosis in this prospective database. SETTINGS All procedures took place in an inpatient hospital setting. PATIENTS All patients satisfied workup criteria to undergo surgery for rectal neoplasm. INTERVENTIONS All patients underwent transanal endoscopic microsurgery for rectal neoplasm. MAIN OUTCOME MEASURES Size and pathology of lesion, length of procedure, hospital stay, estimated blood loss, margin status, and complications were the outcomes measured. RESULTS Twenty-eight patients who underwent transanal endoscopic microsurgery had definitively documented intraperitoneal entry and anastomosis. Median follow-up was 12 months (range, 0.5-111 months). There were no operative mortalities. Procedure-related complications included urinary retention (11%), fever (11%), and fecal seepage (4%). Four patients (14%) had positive margins on final pathology. One patient (3%) required abdominal exploration for an anastomotic leak but did not require diversion. LIMITATIONS Although this study analyzes prospectively collected data, it is nonetheless a retrospective analysis that can introduce bias. Because this is a single-center study with a relatively homogenous population, the results may not be generalizable. Our sample size may also be underpowered to detect clinically significant outcomes. CONCLUSIONS Transanal endoscopic microsurgery with intraperitoneal anastomosis can be safely performed without fecal diversion by experienced surgeons.
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Heidary B, Phang TP, Raval MJ, Brown CJ. Transanal endoscopic microsurgery: a review. Can J Surg 2014; 57:127-38. [PMID: 24666451 PMCID: PMC3968206 DOI: 10.1503/cjs.022412] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2013] [Indexed: 12/18/2022] Open
Abstract
Rectal adenomas and cancers occur frequently. Small adenomas can be removed colonoscopically, whereas larger polyps are removed via conventional transanal excision. Owing to technical difficulties, adenomas of the mid- and upper rectum require radical resection. Transanal endoscopic microsurgery (TEM) was first designed as an alternative treatment for these lesions. However, since its development TEM has been also used for a variety of rectal lesions, including carcinoids, rectal prolapse and diverticula, early stage carcinomas and palliative resection of rectal cancers. The objective of this review is to describe the current status of TEM in the treatment of rectal lesions. Since the 1980s, TEM has advanced substantially. With low recurrence rates, it is the method of choice for resection of endoscopically unresectable adenomas. Some studies have shown benefits to its use in treating early T1 rectal cancers compared with radical surgery in select patients. However, for more advanced rectal cancers TEM should be considered palliative or experimental. This technique has also been shown to be safe for the treatment of other uncommon rectal tumours, such as carcinoids. Transanal endoscopic microsurgery may allow for new strategies in the treatment of rectal pathology where technical limitations of transanal techniques have limited endoluminal surgical innovations.
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Affiliation(s)
- Behrouz Heidary
- From the Department of Surgery, St. Paul’s Hospital, University of British Columbia, Vancouver, BC
| | - Terry P. Phang
- From the Department of Surgery, St. Paul’s Hospital, University of British Columbia, Vancouver, BC
| | - Manoj J. Raval
- From the Department of Surgery, St. Paul’s Hospital, University of British Columbia, Vancouver, BC
| | - Carl J. Brown
- From the Department of Surgery, St. Paul’s Hospital, University of British Columbia, Vancouver, BC
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Damin DC, Lazzaron AR. Evolving treatment strategies for colorectal cancer: A critical review of current therapeutic options. World J Gastroenterol 2014; 20:877-887. [PMID: 24574762 PMCID: PMC3921541 DOI: 10.3748/wjg.v20.i4.877] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 11/22/2013] [Accepted: 01/06/2014] [Indexed: 02/06/2023] Open
Abstract
Management of rectal cancer has markedly evolved over the last two decades. New technologies of staging have allowed a more precise definition of tumor extension. Refinements in surgical concepts and techniques have resulted in higher rates of sphincter preservation and better functional outcome for patients with this malignancy. Although, preoperative chemoradiotherapy followed by total mesorectal excision has become the standard of care for locally advanced tumors, many controversial matters in management of rectal cancer still need to be defined. These include the feasibility of a non-surgical approach after a favorable response to neoadjuvant therapy, the ideal margins of surgical resection for sphincter preservation and the adequacy of minimally invasive techniques of tumor resection. In this article, after an extensive search in PubMed and Embase databases, we critically review the current strategies and the most debatable matters in treatment of rectal cancer.
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Emhoff IA, Lee GC, Sylla P. Transanal colorectal resection using natural orifice translumenal endoscopic surgery (NOTES). Dig Endosc 2014; 26 Suppl 1:29-42. [PMID: 24033375 DOI: 10.1111/den.12157] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Accepted: 07/08/2013] [Indexed: 02/08/2023]
Abstract
The surgical management of rectal cancer has evolved over the past century, with total mesorectal excision (TME) emerging as standard of care. As a result of the morbidity associated with open TME, minimally invasive techniques have become popular. Natural orifice translumenal endoscopic surgery (NOTES) has been held as the next revolution in surgical techniques, offering the possibility of 'incisionless' TME. Early clinical series of transanal TME with laparoscopic assistance (n = 72) are promising, with overall intraoperative and postoperative complication rates of 8.3% and 27.8%, respectively, similar to laparoscopic TME. The mesorectal specimen was intact in all patients, and 94.4% had negative margins. There was no oncological recurrence in average-risk patients at short-term follow up, and 2-year survival rates in high-risk patients were comparable to that after laparoscopic TME. These preliminary studies demonstrate transanal NOTES TME with laparoscopic assistance to be clinically feasible and safe given careful patient selection, surgical expertise, and appropriate procedural training. We are hopeful that with optimization of transanal instruments and surgical techniques, pure transanal NOTES TME will become a viable alternative to open and laparoscopic TME in the future.
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Affiliation(s)
- Isha Ann Emhoff
- Department of Surgery, Division of Gastrointestinal Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
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Kanehira E, Tanida T, Kamei A, Nakagi M, Hideshima A. A single surgeon's experience with transanal endoscopic microsurgery over 20 years with 153 early cancer cases. MINIM INVASIV THER 2013; 23:5-9. [PMID: 24328981 DOI: 10.3109/13645706.2013.868814] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND The first author performed transanal endoscopic surgery (TEM) in 302 patients in Japan for the last 20 years, 153 of which were early rectal cancer cases. The short- and long-term outcomes of the early rectal cancer cases are herein reported. MATERIAL AND METHODS The original technique of TEM developed by Gerhard Buess was performed in all cases. The hospital records were reviewed to assess the clinical outcomes. A questionnaire was sent to the patients to analyze the long-term outcomes. RESULTS One-hundred and fifty-three early cancer cases included 115 T0 and 38 T1 lesions. Full-thickness resection was performed in 36 patients, while 117 underwent submucosal dissection. Conversion to laparoscopic low anterior resection occurred in one case. Mortality was nil. Major operative complication was noted in only one patient, who developed stenosis. Seven patients underwent immediate salvage surgery. Six patients died of recurrence of rectal cancer. Disease-free survival rate at year 5 was 93.7%. CONCLUSIONS Our study, one of the largest series in the world, confirms that TEM is a preferable option in the surgical treatment of T0 and T1a rectal carcinoma. As long as early cancer cases are treated, submucosal resection seems to be sufficient. When risk of recurrence is found by pathological examination, immediate salvage operation is mandatory to improve the prognosis.
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Affiliation(s)
- Eiji Kanehira
- Department of Surgery, Medical Topia Soka , Soka City, Saitama , Japan
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Complications of transanal endoscopic microsurgery are rare and minor: a single institution's analysis and comparison to existing data. Dis Colon Rectum 2013; 56:295-300. [PMID: 23392142 DOI: 10.1097/dcr.0b013e31827163f7] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Transanal endoscopic microsurgery, a minimally invasive procedure for treatment of early-stage rectal cancer, carcinoid tumors, and adenomas, is shown to be a safe procedure with very low perioperative morbidity. OBJECTIVE We aimed to compare the outcomes of transanal endoscopic microsurgery at a large volume tertiary care center with the existing literature. DESIGN We retrospectively reviewed a prospectively collected database of 325 transanal endoscopic microsurgery procedures and looked for risk factors associated with complications. Indications for transanal endoscopic microsurgery included rectal adenocarcinomas, adenomas, and carcinoids. SETTING Procedures were performed by a single surgeon at a large-volume tertiary care center. PATIENTS Patients were enrolled over a 20-year period, and data were collected on demographics, perioperative details, tumor characteristics, and complications. INTERVENTIONS Transanal endoscopic microsurgery was performed on all 325 patients. MAIN OUTCOME MEASURES Main outcome measures were urinary retention, late bleeding requiring intervention, dehiscence, peritoneal cavity entry, conversion to abdominal approach, fecal soiling, and rectovaginal fistula. RESULTS Intraoperative bleeding was associated with larger tumor size, whereas postoperative bleeding requiring intervention was not associated with any factors studied. Peritoneal cavity entry and urinary retention were more likely if the tumor was in either the anterior or lateral position in the rectum. The peritoneal cavity was entered in 9 patients, and conversion to abdominal approach occurred in 1 patient. Intraoperative bleeding, by surgeon's choice, and urinary retention, by patient's choice, were associated with a greater likelihood of admission to the inpatient ward. Fecal soiling was not reported by patients and not recorded. LIMITATIONS This study was limited because it was a retrospective analysis CONCLUSIONS Transanal endoscopic microsurgery is an extremely safe procedure, offering very low perioperative morbidity. The overall morbidity found in our study was 10.5%, on par with published data for large series of 21%, 7.7%, and 14.9%. In contrast, complications from radical resection are reported at 18% to 55%.
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47
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Whiteford MH, Swanström LL. NOTES: What Is the Current Status and Will It Ever See the Light of Day? SEMINARS IN COLON AND RECTAL SURGERY 2013. [DOI: 10.1053/j.scrs.2012.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Abstract
The aim of oncologic surgery is radical cancer treatment with preservation of function and quality of life. Almost 30 years ago, transanal endoscopic microsurgery (TEM) revolutionised the technique and outcomes of transanal surgery, first becoming the standard of treatment for large rectal adenomas, then offering a possibly curative treatment for early rectal cancer, and finally generating discussion on its potential role in combination with neoadjuvant therapies for the treatment of more invasive cancer. TEM afforded the advantage of combining a less invasive transanal approach with low recurrence rates thanks to enhanced visualization of the surgical field, which allows more precise dissection. We describe the current indications, the preoperative work-up, the surgical technique (with the aid of a video), postoperative management and results obtained in an over 20-year-long experience. Designed as an accurate means to allow excision of benign rectal neoplasms with a very low morbidity rate, TEM today is indicated as a curative treatment of malignant neoplasms that are histologically confirmed as pT1 sm1 carcinomas. T1 sm2-3 and T2 lesions should at present be included in prospective trials. Accurate preoperative staging is essential for optimal selection of patients. Patients with clear indication for TEM should be referred to specialized medical centres experienced with the technique.
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Free Intra-Abdominal Air without Peritoneal Perforation after TEM: A Report of Two Cases. Case Rep Surg 2012; 2012:185429. [PMID: 23346448 PMCID: PMC3533606 DOI: 10.1155/2012/185429] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Accepted: 11/25/2012] [Indexed: 12/15/2022] Open
Abstract
Transanal endoscopic microsurgery (TEM) is a minimally invasive treatment modality for a variety of rectal lesions. Due to its minimally invasive nature, TEM has emerged as a safe method. Among most threatening complications are hemorrhage and peritoneal perforation. We report on two patients who demonstrated intra-abdominal free air on an erect chest X-ray after TEM procedure without other findings of a pneumoperitoneum. We hypothesize that due to the combination of elevated pressures in the retroperitoneal cavity and decreased integrity of the retroperitoneal barrier, insufflated CO(2) gas can diffuse into the intraperitoneal cavity. Conservative treatment should be considered in patients with free intra-abdominal air postoperatively. However, there should be no suspicion of peritoneal entry during the procedure and the patient should be in generally good condition without severe abdominal symptoms.
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McLemore EC, Coker A, Jacobsen G, Talamini MA, Horgan S. eTAMIS: endoscopic visualization for transanal minimally invasive surgery. Surg Endosc 2012. [PMID: 23179071 DOI: 10.1007/s00464-012-2652-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Transanal endoscopic microsurgical (TEM) resection is associated with improved outcomes compared to transanal excision of rectal lesions. However, TEM equipment requires additional operative setup time, and tumor location dictates patient positioning. In 2010, Drs. Attallah, Albert, and Larach developed an alternative technique, transanal minimally invasive surgery (TAMIS). Herein, we describe our novel experience using endoscopic visualization to perform TAMIS (eTAMIS) to remove a large rectal polyp. METHODS This is a technical note describing a new surgical technique, eTAMIS. The technique is performed with the Gelpoint Path TAMIS platform (Applied Medical, Rancho Santa Margarita, CA) and a standard single-channel endoscope for visualization. Patient demographics, operative data, and pathologic data were recorded. RESULTS eTAMIS was initially performed in a 50-year-old woman with an endoscopically defiant rectal mass discovered on routine screening colonoscopy. The lesion was a tubulovillous adenoma, 10 cm from the anal verge, anterior, and occupied 15-20 % of the circumference. The rectal mass was removed by eTAMIS. The operative time was 101 minutes, and the patient was discharged within 24 h without event. Final pathology revealed a focus of well-differentiated rectal adenocarcinoma with focal invasion into the muscularis mucosa (Haggit level 0, pTis) arising in the head of a pedunculated tubulovillous adenoma. At 1-year follow-up endoscopy, the patient had no evidence of recurrent mass or polyp. CONCLUSIONS This is the first technical report describing endoscopic visualization for TAMIS. Endoscopic visualization facilitates intraluminal articulation and lens cleaning while minimizing extraluminal instrument collisions. eTAMIS is a practical and logical evolution of the visual approach to natural orifice transluminal endoscopic surgery and laparoendoscopic surgery.
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Affiliation(s)
- Elisabeth C McLemore
- UC San Diego Medical Center, Moores Cancer Center, Department of Surgery, University of California, 3855 Health Sciences Dr., #0987, La Jolla, San Diego, CA 92093-0987, USA.
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