Добавил:
kiopkiopkiop18@yandex.ru t.me/Prokururor I Вовсе не секретарь, но почту проверяю Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
Ординатура / Хирургия / Библиотека им академика М.И. Перельмана / Книга_5193_Библиотеки_им_академика_М_И_Перельмана.pdf
Скачиваний:
0
Добавлен:
30.08.2026
Размер:
65 Мб
Скачать
27 Left Hemicolectomy andTotal Colectomy
36. Carmichael JC, Keller DS, Baldini G, Bordeianou L, Weiss E, Lee L, etal. Clinical practice guidelines for enhanced recovery after colon and rectal surgery from the American Society of Colon and Rectal Surgeons and Society of American Gastrointestinal and Endoscopic Surgeons. Dis Colon Rectum. 2017;60(8):761–84.
37. Lee L, Liberman S, Charlebois P, Stein B, Kaneva P, Carli F, etal. The impact of complications after elective colorectal resection within an enhanced recovery pathway. Tech Coloproctol. 2018;22(3):191–9.
38. Hung LY, Benlice C, Jia X, Steele SR, Valente MA, Holubar SD, etal. Outcomes after early versus delayed urinary bladder catheter removal after proctectomy for benign and malignant disease in 2,429 patients: An Observational Cohort Study. Surg Infect. 2021;22(3):310–7.
39. Liska D, Novello M, Cengiz BT, Holubar SD, Aiello A, Gorgun E, et al. Enhanced recov­ery pathway benets patients undergoing nonelective colorectal surgery. Ann Surg. 2021;273(4):772–7.
40. Lorenzon L, Bini F, Balducci G, Ferri M, Salvi PF, Marinozzi F.Laparoscopic versus robotic­assisted colectomy and rectal resection: a systematic review and meta-analysis. Int J Color Dis. 2016;31(2):161–73.
41. Jayne D, Pigazzi A, Marshall H, Croft J, Corrigan N, Copeland J, etal. Effect of robotic­assisted vs conventional laparoscopic surgery on risk of conversion to open laparotomy among patients undergoing resection for rectal cancer: The ROLARR Randomized Clinical Trial. JAMA. 2017;318(16):1569–80.
42. Jimenez-Rodriguez R, Quezada-Diaz F, Garcia-Aguilar J.Robotic total abdominal colectomy: A step-by-step approach. In: Kim J, Garcia-Aguilar J, editors. Minimally invasive surgical techniques for cancers of the gastrointestinal tract: A step-by-step approach. Cham: Springer International Publishing; 2020. p.227–32.
43. Park EJ, Baik SH.Robotic surgery for colon and rectal cancer. Curr Oncol Rep. 2016;18(1):5.
44. Park EJ, Kim CW, Cho MS, Kim DW, Min BS, Baik SH, etal. Is the learning curve of robotic low anterior resection shorter than laparoscopic low anterior resection for rectal cancer?: a comparative analysis of clinicopathologic outcomes between robotic and laparoscopic surger­ies. Medicine (Baltimore). 2014;93(25):e109.
45. Lin CY, Liu YC, Chen MC, Chiang FF.Learning curve and surgical outcome of robotic assisted colorectal surgery with ERAS program. Sci Rep. 2022;12(1):20566.
46. Hirschburger M, Schneider R, Kraenzlein S, Padberg W, Hecker A, Reichert M.Right colec­tomy from open to robotic– a single-center experience with functional outcomes in a learning­curve setting. Langenbeck’s Arch Surg. 2022;407(7):2915–27.
47. Parascandola SA, Horsey ML, Hota S, Paull JO, Graham A, Pudalov N, etal. The robotic colorectal experience: an outcomes and learning curve analysis of 502 patients. Color Dis. 2021;23(1):226–36.
48. Park EJ, Kim CW, Cho MS, Baik SH, Kim DW, Min BS, etal. Multidimensional analyses of the learning curve of robotic low anterior resection for rectal cancer: 3-phase learning process comparison. Surg Endosc. 2014;28(10):2821–31.
49. Kılınçarslan Ö, Türk Y, Vargör A, Özdemir M, Hassoy H, Makay Ö. Video gaming improves robotic surgery simulator success: a multi-clinic study on robotic skills. J Robot Surg. 2023;17(4):1435–42.
50. Erözkan K, Culcu S, Tamam S, Unal AE.The contribution of laparoscopic distal pancre­atectomy videos on YouTube to the learning curve in the COVID-19 pandemic. Medicine (Baltimore). 2022;101(47):e31537.
51. Symer MM, Sedrakyan A, Yeo HL.Case sequence analysis of the robotic colorectal resection learning curve. Dis Colon Rectum. 2019;62(9):1071–8.
52. Park JS, Choi GS, Lim KH, Jang YS, Jun SH. Robotic-assisted versus laparoscopic sur­gery for low rectal cancer: case-matched analysis of short-term outcomes. Ann Surg Oncol. 2010;17(12):3195–202.
53. Pasquer A.Full robotic total colectomy with a suprapubic approach: technical points. Tech Coloproctol. 2023;27(5):421–2.
385
386
54. Yeo SA, Noh GT, Han JH, Cheong C, Stein H, Kerdok A, etal. Universal suprapubic approach for complete mesocolic excision and central vascular ligation using the da Vinci Xi(®) system: from cadaveric models to clinical cases. J Robot Surg. 2017;11(4):399–407.
55. Hamilton AER, Chateld MD, Johnson CS, Stevenson ARL.Totally robotic right hemicolec­tomy: a multicentre case-matched technical and peri-operative comparison of port placements and da Vinci models. J Robot Surg. 2020;14(3):479–91.
56. Bianchi PP, Giuliani G, Salaj A, Ferraro L, Opocher E, Toti F, etal. Bottom-up suprapubic approach for robotic right colectomy: technical aspects and preliminary outcomes. Minerva Surg. 2021;76(2):129–37.
57. Schulte Am Esch J, Iosivan SI, Steinfurth F, Mahdi A, Förster C, Wilkens L, etal. A standard­ized suprapubic bottom-to-up approach in robotic right colectomy: technical and oncological advances for complete mesocolic excision (CME). BMC Surg. 2019;19(1):72.
58. Lee HJ, Choi GS, Park JS, Park SY, Kim HJ, Woo IT, etal. A novel robotic right colectomy for colon cancer via the suprapubic approach using the da Vinci Xi system: initial clinical experi­ence. Ann Surg Treat Res. 2018;94(2):83–7.
59. Choo JM, Kim JS, Cheong JY, Rusli SM, Park H, Kim SH. Application of a single-port robotic system for right colectomy: a novel suprapubic approach. Dis Colon Rectum. 2022;65(11):e1029.
60. Kim SJ, Choi BJ, Lee SC.Overview of single-port laparoscopic surgery for colorectal cancers: past, present, and the future. World J Gastroenterol. 2014;20(4):997–1004.
61. Juo YY, Obias V.Robot-assisted single-incision total colectomy: a case report. Int J Med Robot. 2015;11(1):104–8.
62. Chang TC, Lin EK, Lu YJ, Huang MT, Chen CH. Single-incision robotic colectomy ver­sus single-incision laparoscopic colectomy: a matched case control study. Asian J Surg. 2021;44(5):749–54.
63. Bae SU, Jeong WK, Baek SK.Robot-assisted colectomy for left-sided colon cancer: com­parison of reduced-port and conventional multi-port robotic surgery. J Laparoendosc Adv Surg Tech A. 2017;27(4):398–403.
64. Voskens FJ, van Hillegersberg R, Broeders IAMJ, Ruurda J.Single-site systems in general sur­gery. In: Gharagozloo F, Patel VR, Giulianotti PC, Poston R, Gruessner R, Meyer M, editors. Robotic surgery. Cham: Springer International Publishing; 2021. p.821–8.
65. Baek SJ, Piozzi GN, Kim SH.Optimizing outcomes of colorectal cancer surgery with robotic platforms. Surg Oncol. 2021;37:101559.
66. Piozzi GN, Kim JS, Choo JM, Shin SH, Kim JS, Lee TH, etal. Da Vinci SP robotic approach to colorectal surgery: two specic indications and short-term results. Tech Coloproctol. 2022;26(6):461–70.
67. Kim HJ, Choi GS, Song SH, Park JS, Park SY, Lee SM, et al. An initial experience with a novel technique of single-port robotic resection for rectal cancer. Tech Coloproctol. 2021;25(7):857–64.
68. Kim HS, Oh BY, Chung SS, Lee RA, Noh GT.Short-term outcomes of single-incision robotic colectomy versus conventional multiport laparoscopic colectomy for colon cancer. J Robot Surg. 2023;17(5):2351–9.
K. Erozkan and E. Gorgun

Low Anterior Resection

28
CigdemBenlice andBilgiBaca

Background

The practice of colorectal surgery has undergone signicant transformation in the past three decades, primarily due to the increasing adoption of minimally invasive techniques following the introduction of laparoscopic colectomy by Jacobs [1]. These minimally invasive approaches have demonstrated enhancements in postop­erative recovery, along with reductions in morbidity and length of hospital stay as compared to traditional open surgery for colorectal procedures [2].
In the management of rectal cancer, surgical resection remains the foremost treatment approach for achieving curative resection, accurate staging, determining prognosis, and guiding subsequent therapeutic decisions [3, 4]. However, rectal cancer surgery poses considerable technical challenges due to the conned anatomi­cal boundaries and the intricate nature of the pelvis, where the presacral veins, auto­nomic and sexual nerves, and organs are in close proximity. The complexities inherent in rectal surgery are further compounded when employing laparoscopic techniques, primarily due to ergonomic limitations in instrument design [5]. Laparoscopic surgeons are tasked with performing multi-quadrant operations simi­lar to open surgery, yet they encounter challenges such as limited tactile feedback and poorly designed instruments. The two-dimensional (2D) visualization adds another layer of difculty, diminishing in-depth perception and hand-eye coordination.
Undoubtedly, the robotic approach is gaining prominence in the eld of colorec­tal surgery. Three-dimensional visualization, the use of endo-wristed instruments, tremor reduction, and the provision of ergonomic and physical comfort for the sur­geon represent several advantages that robotic surgery holds over laparoscopy [6].
C. Benlice · B. Baca (*) Department of General Surgery, Acibadem Mehmet Ali Aydinlar University School of Medicine, Istanbul, Turkey
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 S. Samreen et al. (eds.), The SAGES Manual of Robotic Surgery,
https://doi.org/10.1007/978-3-031-86927-3_28
387
388
C. Benlice and B. Baca
Despite these advantages, there remains a debate about whether this technology will translate into clinical efciency and contribute to the overall value of care. This chapter aims to assess the impact of the robotic approach on low anterior resection, with a specic focus on rectal cancer surgery.
Rationality andAdaption ofRobotic Surgery
The application of robotic surgery has witnessed a remarkable expansion across various surgical disciplines, with a particular focus on colorectal procedures. This surge in adoption can be traced back to the early twenty-rst century when initial reports surfaced regarding the successful implementation of robotic technology in colonic and rectal resections [4, 7]. In a recent extensive analysis encompassing a 16-year period and involving a substantial cohort of 318,548 patients with rectal adenocarcinoma in the United States, notable shifts in treatment modalities and outcomes were identied. The study brought to light a substantial decline in the utilization of open surgery, showing a signicant 50% reduction from 60.1% during period 2 to 30.1% in period 4. In tandem with this decline in open surgery, there was a noteworthy surge in the adoption of minimally invasive surgery, with robotic sur­gery leading the way with a remarkable more than ve-fold increase [4]. This para­digm shift in surgical approaches can be attributed, in large part, to the perceived advantages associated with robotic surgery. The heightened precision, improved visualization provided by a three-dimensional view, stable camera function, and articulated instruments are factors that have contributed to the growing appeal of robotic-assisted procedures. Among the minimally invasive options, robotic surgery has particularly stood out as a favored choice. The pivotal year 2015 emerges as a key turning point in this trend. This coincides with a notable uptick in the adoption of robotic surgery. Intriguingly, this timeframe aligns with the publication of the ALaCaRT trial in the same year [8]. The ALaCaRT trial ndings were instrumental, revealing that laparoscopic surgery did not establish non-inferiority compared to open surgery for patients with T1 to T3 rectal cancers. The uncertainties arising from this trial seemingly inuenced the medical community’s approach to rectal cancer treatment, prompting a shift toward alternative methods, with robotic sur­gery emerging as a compelling choice. In summary, the ndings from this compre­hensive study underscore a substantial evolution in the landscape of rectal adenocarcinoma treatment in the United States. The signicant decline in open sur­gery, coupled with the remarkable increase in minimally invasive approaches, par­ticularly robotic surgery, reects a dynamic response to emerging clinical evidence and a pursuit of more advanced and effective treatment strategies in the ever­evolving eld of oncology.
The purported advantages of utilizing the robotic platform are not only under­scored in observational studies [9, 10] but are also synthesized from comprehensive literature reviews [11, 12]. However, despite the promising outlook, ndings from randomized control trials (RCTs) and a meta-analysis incorporating RCT data have,
28 Low Anterior Resection
389
up until now, indicated a state of non-inferiority [13, 14]. A pivotal contribution to this discourse comes from the ROLARR RCT, which examined 471 cases across 10 different countries involving 40 surgeons, comparing the outcomes of laparoscopic and robotic rectal surgery. Notably, while there was no discernible decrease in con­version rates with robotic surgery within the primary patient cohort, a reduction in conversion rates was identied in male robotic cases as opposed to laparoscopic cases [13].
In parallel, a spectrum of other studies has brought to light compelling benets associated with robotic colorectal surgery. These encompass signicantly reduced conversion rates [15, 16], enhanced oncological outcomes [17, 18], and improved autonomic nerve preservation in cases where the robotic platform was employed. Despite these positive indicators, concerns have been raised regarding operating time and cost as potential drawbacks of robotic colorectal surgery. Nevertheless, it is worth noting that as surgeon experience with robotic technology deepens and the availability of robotic platforms becomes more widespread, the trajectory points toward reduced operating times and costs [19]. This hints at a potential paradigm shift in the perception of drawbacks, making robotic colorectal surgery an increas­ingly viable and advantageous option in the evolving landscape of surgical techniques.
Comparison ofDifferent Surgical Approaches
The advancement of total mesorectal excision (TME) has established a standard for improving local recurrence and survival in rectal cancer surgery. However, the ongoing debate centers on whether a laparoscopic approach can achieve compara­ble oncological outcomes to open surgery [8]. Although open TME is linked to favorable pathologic and oncologic results, it deprives patients of the well­established advantages associated with minimally invasive surgery [20]. These ben­ets include a shorter length of stay, reduced analgesic requirements, and an earlier return of bowel function [21]. Despite decades of experience with laparoscopy in colon cancer treatment, its widespread acceptance for rectal cancer surgery has been hindered by technical challenges, specically related to using in-line, non­articulating instruments in a conned pelvis [4]. The limitations linked to an assistant- dependent laparoscopic (two-dimensional, 2D) view, constrained dexter­ity, and straight instruments have prolonged the learning curve for laparoscopic rectal resections, impeding widespread adoption and potentially inuencing onco­logical outcomes. However, it’s crucial to recognize and consider drawbacks, such as the absence of haptic feedback, when planning and executing robotic procedures.
The increasing popularity of robotic surgery may suggest perceived or actual advantages over traditional laparoscopy. These advantages often include a three­dimensional (3D) view for the operating surgeon, a stable camera, and articulated instruments. In colorectal practice, these benets become particularly relevant in restorative resections of mid- and low-rectal cancers [21].
390
C. Benlice and B. Baca
Cohort studies and meta-analyses indicate that robotic surgery for rectal cancer is associated with a signicantly lower positive circumferential resection margin (CRM) rate compared to laparoscopic surgery [2, 19, 22, 23]. Additionally, robotic surgery exhibits lower open conversion rates, reduced postoperative complications, and shorter hospital stays [24]. Moreover, there is evidence suggesting better recov­ery of urinary and sexual function. This suggests that, despite acknowledged disad­vantages, the robotic approach demonstrates promising oncological outcomes and may serve as a valuable alternative in rectal cancer surgery [25]. It’s important to note that the current evidence is of low quality [26]. A Korean study conducted a comparative analysis of robotic, open, and laparoscopic TME, revealing compara­ble and excellent oncological outcomes [27]. These included 3-year local recur­rence rates ranging from 2.5% to 3.4% and low rates of CRM positivity, specically less than 2.5%. As anticipated, both robotic and laparoscopic minimally invasive proctectomy demonstrated advantages such as a shorter length of stay, reduced pain, and fewer surgical site infections. Additionally, the robotic approach exhibited a signicant association with sphincter preservation and a lower conversion rate when compared to laparoscopic TME as reported in published studies [28].

Learning Curve

The advantage of robotic surgery in low anterior resection lies in its freedom of movements and precision during pelvic dissection. However, the duration of the learning curve is a subject of debate. Signicantly, emerging evidence suggests that the learning curve associated with robotic surgery in procedures such as rectal can­cer surgery is notably shorter compared to that required for laparoscopic surgery, as illuminated by several studies. Several studies have explored the learning curve for robot-assisted rectal cancer surgery, with reported values ranging from 20 to 50 cases [2931]. This sharply contrasts with the frequently mentioned 30 to 70 surger­ies associated with the laparoscopic approach [32]. However, it’s essential to note that some authors have raised concerns about potential bias due to the relatively small number of cases included in these series (less than 50 each) [33]. These con­siderations underscore the evolving understanding of the learning curve in robot­assisted rectal cancer surgery and the importance of methodological rigor in assessing this crucial aspect of surgical adoption. Despite the existence of recently published studies [34], it’s crucial to acknowledge that the experience of laparo­scopic surgeons should be recognized as a signicant inuencing factor in the learn­ing of robot-assisted techniques. Surgeons with prior experience in laparoscopic procedures may benet from their familiarity with tactless surgery and prior optical handling, potentially leading to a decreased learning curve and a more efcient acquisition of expertise in robot-assisted techniques. This interplay between prior surgical skills and the adoption of innovative technologies highlights the impor­tance of leveraging existing expertise to facilitate the integration of newer surgical approaches.
28 Low Anterior Resection
391

Training Program

The inherent advantages offered by robotic technology play a pivotal role in poten­tially streamlining the learning process, potentially reducing the number of cases necessary to attain optimal surgical prociency. The intricacies of rectal cancer sur­gery, a procedure known for its complexity, may benet substantially from the pre­cision and enhanced capabilities of robotic systems, thereby accelerating the surgeon’s journey toward mastery. Without mentoring, it has been observed to take over 50 procedures to achieve prociency in robotic proctectomy. A dedicated train­ing process holds the potential to reduce the duration of this learning curve and contribute to identifying new parameters for dening surgeons’ expertise in robotic procedures. It’s noteworthy that in expert centers, robotic surgery may not always exhibit longer durations than laparoscopy, emphasizing the importance of special­ized training and expertise in optimizing the benets of robotic techniques [35, 36].
The establishment and implementation of a rigorous training program for robotic rectal surgery are critical components in shaping a procient surgical workforce. Standardization and structured training play pivotal roles in ensuring a consistent and high-quality educational experience for surgeons venturing into this complex eld. A standardized curriculum serves as a foundational guide, covering essential aspects ranging from mastering robotic console control to intricate pelvic dissection techniques [37]. For instance, initiatives like the Robotic-Assisted Colorectal Training (RACT) program have demonstrated the efcacy of structured training in enhancing surgeon prociency [38]. This comprehensive program encompasses didactic modules, virtual reality simulation, and hands-on training, contributing to a well-rounded educational experience. Moreover, standardized training ensures con­sistency in skill acquisition across diverse surgical environments. Studies empha­size the importance of standardized training in minimizing variations in surgical performance and promoting uniformity in the adoption of robotic techniques [39]. Structured training programs not only facilitate a more streamlined learning curve but also aid in the objective assessment of surgeons’ competencies. Given this infor­mation, the implementation of a standardized and structured training program for robotic rectal surgery is instrumental in shaping a skilled and condent surgical workforce. By drawing insights from various studies and initiatives, we can appreci­ate the multifaceted benets of such programs in optimizing surgical outcomes and advancing the eld of robotic rectal surgery.

Genitourinary Function

Robotic rectal surgery distinguishes itself with its advanced capabilities, providing unparalleled optics and heightened visualization of the intricate autonomic nervous plexus within the pelvis. This elevated visual acuity serves as a powerful tool for pre­cision, empowering surgeons to engage in meticulous preservation of nerves. Advocates of the total robotic technique posit that this meticulous preservation,
392
C. Benlice and B. Baca
especially concerning both pelvic and periaortic nerves, holds the promise of a sub­stantial reduction in postoperative complications. Specically, there is an anticipation of minimizing the risk of complications such as sexual and bladder dysfunction. The integration of superior optics into robotic rectal surgery not only underscores the tech­nological advancements in the eld but also underscores the potential for improved patient outcomes and enhanced quality of life following such intricate surgical proce­dures [4042]. This perspective accentuates the multifaceted advantages that robotic rectal surgery can bring to the forefront, promising not only heightened surgical preci­sion but also a potential positive impact on patients’ genitourinary function during the critical postoperative phase. The integration of robotic technology not only elevates the technical aspects of the surgical procedure but also holds the potential to contrib­ute signicantly to the overall well-being of patients by addressing genitourinary con­cerns. This holistic approach aligns with the evolving landscape of surgical advancements, where innovations extend beyond procedural efcacy to encompass broader considerations for patient outcomes and postoperative quality of life. Recent two randomized controlled trials, which assessed minimally invasive techniques, incorporated sexual and urinary function metrics as outcome measures [13, 14]. The initial trial revealed no statistically signicant difference between the two groups con­cerning urinary and sexual function for both males and females at the 6-month mark. In contrast, the second study reported that sexual function 1-year post-surgery was notably superior in the robotic-assisted group when compared to the laparoscopic group. A robotic platform serves as a tool that enhances visibility in the operating eld and offers increased precision. Nevertheless, it merely mimics the movements of the surgeon’s hands. Therefore, a thorough understanding of pelvic neuroanatomy and the principles of nerve-sparing total mesorectal excision is essential to minimize the potential for iatrogenic injury to the hypogastric plexus [43].

Preoperative Planning

The meticulous selection of patients is paramount for effective preoperative plan­ning, necessitating individuals who are not only medically t but also capable of tolerating minimally invasive surgery. A comprehensive evaluation, including a detailed history and physical examination, is essential for all patients. For those with rectal lesions, a preoperative full colonoscopy is strongly recommended, par­ticularly for identifying tumor location and potential synchronous colorectal lesions.
As part of the preoperative preparation for rectal surgery, patients undergo mechanical bowel preparation along with oral antibiotics. Preoperative broad­spectrum intravenous antibiotics are administered within 30–60min of the incision time to ensure optimal concentration from the outset. Deep venous prophylaxis involves the use of sequential compression devices and chemical prophylaxis (pre­operative heparin). A Foley catheter and intraoperative orogastric tube are routinely placed in all cases. Additionally, patients receive counseling from the colorectal nurse, who marks the site of the ileostomy.
28 Low Anterior Resection
393

Operative Procedure

Room Setup
When performing robotic low anterior resection with da Vinci® Xi Surgical Systems, the patient is positioned in a modied lithotomy stance utilizing adjustable lithotomy stirrups. The assistant surgeon maintains a position on the right side of the patient, providing support to the console surgeon through one assistant port. Robot was docked from the left side of the patient (edited and narrated video clip showing surgical steps for robotic low anterior resection).
Patient Positioning
The lithotomy position proves advantageous for the surgical team, particularly when operating in the upper quadrants of the abdomen, as it allows them to stand between the patient’s legs. Padded stirrups or yellow ns are utilized, and meticu­lous attention is given to preventing perineal nerve injury. Both arms are tucked at the patient’s sides. A gel pad on the operating table can offer additional decubitus support and stability against extreme table tilting. To mitigate the risk of nerve injury, caution is exercised during changes in the operation table position, as subse­quent patient sliding may lead to pressure from the stirrup on the posterior aspect of the lower extremity. To prevent such occurrences, we opt to secure patients on the operating table using strong tape anteriorly, encircling the chest, thus minimizing the potential for sliding during maneuvers.
Port Placement andDocking
To facilitate robotic low anterior resection, a total of ve ports are necessary, includ­ing camera and assistant ports. Figure28.1 illustrates the placement of ports for three robotic arms, camera, and assistant ports. The port placement strategy involves an 8mm port in the supraumbilical area using a Veress needle technique. An 8mm port is situated in the left upper quadrant lateral to the umbilicus, 10cm apart; two additional 8mm ports are placed on the right lower quadrant. An assistant port is inserted on the right lateral side of the robotic ports, equidistant from the right upper or lower quadrant (Fig.28.1).
After docking the da Vinci patient cart as described, the arms are arranged according to gure. A monopolar curved scissor (da Vinci® Surgical System, Intuitive Surgical, Sunnyvale, CA) is inserted through the port just right side of the camera port. A bipolar grasper (double fenestrated) (da Vinci® Surgical System, Intuitive Surgical, Sunnyvale, CA) is inserted through the port just left side of the camera port. A double fenestrated tip-up grasper (da Vinci® Surgical System, Intuitive Surgical, Sunnyvale, CA) is placed at the leftmost port. Typically, the
394
Fig. 28.1 Robotic low anterior resection port placement
C. Benlice and B. Baca
assistant instrument consists of a laparoscopic bowel grasper or suction device. During the surgery, the port used for monopolar scissors is changed to 12 mm robotic trocar to insert robotic stapler for the transection of the bowel.
Technique
After establishing pneumoperitoneum, the camera is introduced, and additional tro­cars are placed under direct vision. The patient is repositioned in a right-side-down and slight Trendelenburg position to aid in displacing the small bowel and the cecum out of the pelvis. Subsequently, the robot is then docked. Initially, utilizing the robot, a medial-to-lateral mobilization of the left colon is carried out, representing our preferred approach. However, depending on the surgeon’s comfort level, a lat­eral approach can also be employed. This exibility allows for adaptation to indi­vidual surgeon preferences and patient-specic considerations during the procedure.
After the initial exposure, the peritoneum was incised at the sacral promontory level, and the aorta-mesenteric window was opened using monopolar scissors and bipolar forceps (Fig.28.2). The inferior mesenteric artery (IMA) was then exposed and cleared at its origin from the aorta, ensuring preservation of the inferior mesen­teric plexus (Fig.28.3). Subsequently, the IMA was ligated with Hem-o-Lok clips and transected 1cm away from the aorta (Fig.28.4). Following the ligation of the IMA, autonomic nerves innervating the descending and sigmoid colon were meticu­lously dissected and cut separately using monopolar scissors set to level 2. This approach is adopted to prevent lateral thermal injury to the autonomic nerves that innervate pelvic organs.
In a medial-to-lateral fashion, the dissection was systematically extended to identify the inferior mesenteric vein (IMV). The IMV was isolated at the inferior border of the pancreas, ligated with Hem-o-Lok clips, and subsequently divided