Application value of Da Vinci robotic transanal minimally invasive surgery for local resection of rectal neoplasms / 中华消化外科杂志

Objective:To investigate the application value of Da Vinci robotic transanal minimally invasive surgery (R-TAMIS) for local resection of rectal neoplasms.Methods:The retros-pective and descriptive study was conducted. The clinicopathological data of 7 rectal neoplasms patients undergoing R-TAMIS in Daping Hospital of Army Medical University from June 2017 to March 2021 were collected. There were 3 males and 4 females, aged (60±7)years. Observation indicators: (1) intraoperative situations; (2) postoperative recovery; (3) postoperative histopatholo-gical examinations; (4) follow-up. Follow-up was conducted using telephone interview or outpatient examination to detect readmission of patients within postoperative 30 days, tumor recurrence and metastasis and survival of patients. Follow-up was performed at postoperative 1, 3, 6 months and once every 6 months thereafter up to April 2021. Measurement data with normal distribution were represented as Mean± SD, and measurement data with skewed distribution were represented as M(range). Count data were described as absolute numbers. Results:(1) Intraoperative situations. All the 7 patients underwent R-TAMIS successfully without conversion to laparotomy or laparoscopic surgery. Of the 7 patients, 2 cases underwent full-thickness rectal resection and 5 cases underwent submucosal dissection of tumor. The rectal wounds were not sutured in 2 cases because of large lesions, and the rectal wounds were sutured with synthetic sutures in 5 cases after resection of lesions. Transanal drainage tube was placed in 2 cases and not in 5 cases. The volume of intra-operative blood loss of the 7 patients was 15(range, 2?50)mL. The total operation time of the 7 patients was (91.4±18.4)minutes, including (19.1±2.3)minutes for transanal platform placement and Da Vinci robotic surgical system installation, and (72.3±16.6)minutes for operation. There was no intraoperative complication such as urethral injury. (2) Postoperative recovery. All the 7 patients started water drinking and out-of-bed activities at postoperative day 1 and liquid food intake at postoperative day 2. The time to postoperative first flatus of the 7 patients was 1(range, 1?3)days. The two cases with transanal drainage underwent removing of transanal drainage at postoperative day 2. There was no postoperative complication and the duration of postoperative hospital stay of the 7 patients was 3(range, 3?9)days. (3) Postoperative histopathological examinations. Of the 7 patients, 3 cases had villous adenoma, 2 cases had villous adenoma combined with high grade intraepithelial neoplasia, local canceration and tumor invasion into submucosa (stage SM1), 1 case had villous adenoma combined with high grade intraepithelial neoplasia, local canceration and tumor localized in the inner mucosa (stage Tis) and 1 case had moderately differentiated adeno-carcinoma with tumor invasion into superficial muscle layer (stage T2). All the 7 patients had negative surgical margins with none of tumor cell remained in the base. (4) Follow-up. All the 7 patients were followed up for 18(range, 1?42)months. One of the 7 patients showed rectal adenocarcinoma with tumor invasion into superficial muscle layer by the postoperative histopathological examina-tion and was recommended for remedial radical surgery. The patient refused further surgery and underwent 3 courses of oral capecitabine chemotherapy. The other 6 patients did not receive postoperative chemotherapy. None of 7 patients underwent readmission within postoperative 30 days, and no patient had tumor local recurrence, distant metastasis or death during the follow-up.Conclusion:R-TAMIS for local resection of rectal neoplasms is safe and feasible for patients with rectal adenoma and early rectal cancer, with reliable short-term efficacy and short-term oncological efficacy.

A new approach for hemorrhoid disease: selective dearterialization and mucopexy without doppler guidance / Uma nova opção para o tratamento da doença hemorroidária: desarterialização e mucopexia seletiva sem o ultrassom doppler

ABSTRACT Background: Transanal hemorrhoidal dearterialization (THD) is safe and effective minimally invasive treatment for hemorrhoidal disease, but reports regarding recurrence and postoperative complications (pain and tenesmus) vary significantly. Aim: To evaluate if selective dearterialization and mucopexy at the symptomatic hemorrhoid only, without Doppler guidance, achieves adequate control of the prolapse and bleeding and if postoperative morbidity is reduced with this technique. Methods: Twenty consecutive patients with grade II and III hemorrhoids were treated with this new approach and were evaluated for postoperative complications and recurrence. Results: Control of prolapse and bleeding was achieved in all patients (n=20). Postoperative complications were tenesmus (n=2), external hemorrhoidal thrombosis (n=2) and urinary retention (n=2). After a mean follow-up of 13 months no recurrences were diagnosed. Conclusion: Selective dearterialization and mucopexy is safe and achieves adequate control of prolapse and bleeding and, by minimizing sutures in the anal canal, postoperative morbidity is diminished. Doppler probe is unnecessary for this procedure, which makes it also more interesting from an economic perspective.

RESUMO Racional: O tratamento da doença hemorroidária pela técnica de THD (Transanal Hemorrhoidal Dearterialization) é minimamente invasivo e tem se mostrado seguro e eficiente. No entanto, dados sobre a recorrência e complicações (dor e tenesmo) no pós-operatório são muito variáveis. Objetivo: Avaliar se a desarterialização e mucopexia seletiva, sem o uso de Doppler, é suficiente para o controle de sintomas e se a morbidade pós-operatória é menor com esta técnica. Métodos: Vinte pacientes foram tratados com essa técnica e avaliados sobre controle de sintomas, morbidade pós-operatória e recorrência. Resultados: Controle do prolapso e sangramento foi observado em todos pacientes (n=20). Complicações pós-operatórias foram: tenesmo (n=2), trombose hemorroidária externa (n=2), retenção urinária (n=2). Após um seguimento médio de 13 meses, nenhuma recorrência foi detectada. Conclusões: O procedimento de desarterialização e mucopexias seletivas é seguro e eficiente em termos de controle do prolapso e sangramento. Esta técnica resulta em menor morbidade cirúrgica, uma vez que diminui o número de suturas no canal anal, resultando em menos dor e tenesmo pós-operatório. Para este procedimento o uso de ultrassom Doppler é desnecessário, o que diminui custos e o torna mais atrativo do ponto de vista econômico.

TAMIS: ¿Un nuevo estándar para el tratamiento de los pólipos de recto? Revisión de la bibliografía y reporte de nuestra experiencia / TAMIS: A new standard for the treatment of rectal polyps? Literature review and report our experience

La morbilidad y alteración de la calidad de vida asociadas a la resección anterior del recto y amputación abdominoperineal determinaron un gran interés en el desarrollo del abordaje transanal. En los últimos años se ha visto un marcado desarrollo tecnológico en los dispositivos disponible para este abordaje. La cirugía por vía transanal ofrece ventajas en cuanto a sus resultados y complicaciones cuando se la compara a la cirugía por vía abdominal. La cirugía transanal mini-invasiva surge como una alternativa de abordaje videoendoscópico del recto. La resección local por cirugía endoscópica para los pólipos grandes de recto se ha convertido en un nuevo estándar de tratamiento en la mayoría de los centros, obteniendo piezas no fragmentadas con una alta tasa de márgenes negativos. En el presente estudio realizamos una revisión sobre la aplicación de TAMIS (TransAnal Minimally Invasive Surgery) al tratamiento de los pólipos de recto. (AU)

A great interest has developed in implementing trans anal minimally invasive surgery for the treatment of rectal adenomas and early rectal tumors. It present advantages when compare to radical surgery and peace meal endoscopic resections. TAMIS delivers non-fragmented specimens with clear resection margin in the majority of the cases. Such good technical results are mirrored with a low recurrence rate when evaluating rectal adenomas. This is a review of the application of TAMIS for the treatment of rectal adenomas. (AU)

Development and clinical application of transanal minimally invasive surgery / 国际外科学杂志

Laparoscopic radical resection of rectal cancer is a common practice in the field of colorectal surgery.Ensuring oncologic safety,the occurring practices of transanal endoscopic microsurgery (TEM) and transanal minimally invasive surgery (TAMIS) aims at lowering operation difficulty,optimizing eradication rate,developing economic efficiency and improving post-operative recovery.In recent years,the unique advantages of TAMIS are gradually being recognized.Comparing to TEM,TAMIS has a lower surgery cost,flatter learning curve and fewer post-operative complications,indicating high clinical value.This review will give an introduction of TAMIS from its development,clinical application and prospect.

Development and clinical application of transanal minimally invasive surgery / 国际外科学杂志

Laparoscopic radical resection of rectal cancer is a common practice in the field of colorectal surgery. Ensuring oncologic safety, the occurring practices of transanal endoscopic microsurgery (TEM) and transanal minimally invasive surgery (TAMIS) aims at lowering operation difficulty, optimizing eradication rate, developing economic efficiency and improving post-operative recovery. In recent years, the unique advantages of TAMIS are gradually being recognized. Comparing to TEM, TAMIS has a lower surgery cost, flatter learning curve and fewer post-operative complications, indicating high clinical value. This review will give an introduction of TAMIS from its development, clinical application and prospect.

Retroperitoneal abscess after transanal minimally invasive surgery: case report and review of literature / Abscesso retroperitoneal após cirurgia de ressecção transanal minimamente invasiva: relato de caso clínico e revisão a literatura médica

ABSTRACT Abscesses are a rare complication of transanal minimally invasive surgery and transanal endoscopic micro surgery. Reported cases have been in the rectal and pre-sacral areas and have been managed with either antibiotics alone or in conjunction with laparotomy and diverting colostomy. We report a case of a large retroperitoneal abscess following a Transanal minimally invasive surgery full thickness rectal polyp excision. The patient was successfully managed conservatively with antibiotics and a percutaneous drain. Retroperitoneal infection should be included in a differential diagnosis following a Transanal minimally invasive surgery procedure as the presentation can be insidious and timely intervention is needed to prevent further morbidity.

RESUMO Os abscessos são uma complicação rara da cirurgia de ressecção transanal minimamente invasiva (TAMIS) e da micro cirurgia endoscópica transanal (TEMS). Os casos notificados foram nas áreas rectal e pré-sacral e foram administrados com antibióticos isoladamente ou em conjunto com laparotomia e desvio de colostomia. Relatamos um caso de grande abscesso retroperitoneal após uma excisão de pólipo retal de espessura total TAMIS. O paciente foi tratado com sucesso com a administração de antibióticos e drenagem percutânea. Para prevenir mais morbidade é necessária incluir a infecção retroperitoneal no diagnostico diferencial após um procedimento TAMIS onde a apresentação pode ser insidiosa e a intervenção atempada.

Resección de tumoración rectal mediante cirugía transanal mínimamente invasiva (TAMIS) / Rectal tumor resected by transanal minimally invasive surgery (TAMIS)

La microcirugía endoscópica transanal (TEM, por sus siglas en inglés) es una técnica que se ha desarrollado desde los años 80 y tiene múltiples indicaciones. La cirugía transanal mínimamente invasiva (TAMIS, por sus siglas en inglés) se ha introducido como un enfoque alternativo al TEM, con las mismas indicaciones y algunas ventajas. Se reporta aquí el primer caso en Costa Rica de TAMIS, practicada exitosamente en un paciente de 85 años con una tumoración rectal de 4 cm de diámetro.

Transanal Endoscopic Microsurgery (TEM, for its acronym in English) is a technique developed in the 80s, which has many uses. Transanal Minimally Invasive Surgery (TAMIS, for its acronym in English) has been introduced as an alternative approach to TEM, with the same indications and some advantages. The case of an 85-yearold male with a 4 cm in diameter rectal tumor successfully resected by TAMIS is herein reported, which is the first case treated in this manner in Costa Rica.