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Robotic-laparoscopic rectal cancer excision versus traditional laparoscopy.

ABSTRACT: Robotic surgery has been advocated for the radical excision of rectal cancer. Most data supporting its use have been reported from European and Asian centers, with a paucity of data from the United States documenting clear advantages of the robotic technique. This study compares the short-term outcome of robotic versus laparoscopic surgery.Consecutive patients who underwent laparoscopic (group 1) or robotic (group 2) rectal cancer excision at a single institution over a 2-year period were retrospectively reviewed. The main outcome measures were operative time, blood loss, conversion rates, number of lymph nodes, margin positivity, length of hospital stay, complications, and readmission rates.Forty-two patients were analyzed. The median operative time was shorter in group 1 than that in group 2 (240 minutes vs 260 minutes, P=.04). No difference was noted in blood loss, transfusion rates, intraoperative complications, or conversion rates. There was no difference in circumferential or distal margin positivity. The median length of stay was shorter in group 1 (5 days vs 6 days, P=.05). The 90-day complication rate was similar in both groups (33% vs 43%, P=.75), but there was a trend toward more anastomotic leaks in group 1 (14% vs 0%, P=.23). Similarly, a non-statistically significant trend toward a higher readmission rate was noted in group 1 (24% vs 5%, P=.18).Robotic rectal cancer excision yielded a longer operative time and hospital length of stay, although immediate oncologic results were comparable. The need for randomized data is critical to determine whether the added resource utilization in robotic surgery is justifiable.

SUBMITTER: Tam MS

PROVIDER: S-EPMC4208889 | biostudies-other | 2014 Jul-Sep

REPOSITORIES: biostudies-other

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Robotic-laparoscopic rectal cancer excision versus traditional laparoscopy.

Tam Michael S MS Abbass Mohammad M Abbas Maher A MA

JSLS : Journal of the Society of Laparoendoscopic Surgeons 20140701 3

<h4>Background and objectives</h4>Robotic surgery has been advocated for the radical excision of rectal cancer. Most data supporting its use have been reported from European and Asian centers, with a paucity of data from the United States documenting clear advantages of the robotic technique. This study compares the short-term outcome of robotic versus laparoscopic surgery.<h4>Methods</h4>Consecutive patients who underwent laparoscopic (group 1) or robotic (group 2) rectal cancer excision at a s ...[more]

PMID: 25392653

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Project description:The outcomes of robot-assisted mesorectal excision for rectal cancer, compared with open resection, have not been fully characterized. A retrospective analysis of pathologic, short-term, and long-term outcomes in patients with rectal adenocarcinoma who underwent total or tumour-specific mesorectal excision at a high-volume cancer centre between 2008 and 2017 was conducted. Outcomes after robotic and open surgery were compared on an intention-to-treat basis. Out of 1048 resections performed, 1018 patients were reviewed, with 638 who underwent robotic surgery and 380 open surgery. Robotic surgery was converted to the open approach in 17 (2.7 per cent) patients. Patients who underwent robotic surgery were younger (median 54 (range 22-91) years versus median 58 (range 18-97) years; P < 0.001), had higher tumours (median 80 (range 0-150) mm from the anal verge versus median 70 (0-150) mm; P = 0.001), and were less likely to have received neoadjuvant therapy (64 per cent versus 73 per cent; P = 0.003). For patients who underwent a robotic total mesorectal excision, the operating time was longer (median 283.5 (range 117-712) min versus median 249 (range 70-661) min; P < 0.001). However, the rate of complications was lower (29 per cent versus 45 per cent; P < 0.001) and length of hospital stay was shorter (median 5 (range 1-32) days versus median 7 (range 0-137) days; P < 0.001). Median follow-up of survivors was 2.9 years. The proportion of patients with a positive circumferential resection margin did not differ between the groups, nor did the rate of local recurrence (robotic versus open: 3.7 per cent, 95 per cent c.i. 1.9 to 5.6 versus 2.8 per cent, 95 per cent c.i. 1.0 to 4.6; P = 0.400), systemic recurrence (robotic versus open: 11.7 per cent, 95 per cent c.i. 8.5 to 14.8 versus 13.0 per cent, 95 per cent c.i. 9.2 to 16.5; P = 0.300), or overall survival (robotic versus open: 97.8 per cent, 95 per cent c.i. 96.3 to 99.3 versus 93.5 per cent, 95 per cent c.i. 90.8 to 96.2; P = 0.050). The same results were documented in a subanalysis of 370 matched patients, including 185 who underwent robotic surgery and 185 open surgery, for the overall incidence of any postoperative complications, overall survival, disease-free survival, local recurrence, and systemic recurrence. In patients with rectal cancer who are candidates for curative resection, robotic mesorectal excision is associated with lower complication rates, shorter length of stay, and equivalent oncologic outcomes, compared with open mesorectal excision.

Project description:Surgical resection is crucial for curative treatment of rectal cancer. Through multidisciplinary treatment, including radiochemotherapy and total mesorectal excision, survival has improved substantially. Consequently, more patients have to deal with side effects of treatment. The most recently introduced surgical technique is robotic-assisted surgery (RAS) which seems equally effective in terms of oncological control compared to laparoscopy. However, RAS enables further advantages which maximize the precision of surgery, thus providing better functional outcomes such as sexual function or contience without compromising oncological results. This review was done according to the PRISMA and AMSTAR-II guidelines and registered with PROSPERO (CRD42018104519). The search was planned with PICO criteria and conducted on Medline, Web of Science and CENTRAL. All screening steps were performed by two independent reviewers. Inclusion criteria were original, comparative studies for laparoscopy vs. RAS for rectal cancer and reporting of functional outcomes. Quality was assessed with the Newcastle-Ottawa scale. The search retrieved 9703 hits, of which 51 studies with 24,319 patients were included. There was a lower rate of urinary retention (non-RCTs: Odds ratio (OR) [95% Confidence Interval (CI)] 0.65 [0.46, 0.92]; RCTs: OR[CI] 1.29[0.08, 21.47]), ileus (non-RCTs: OR[CI] 0.86[0.75, 0.98]; RCTs: OR[CI] 0.80[0.33, 1.93]), less urinary symptoms (non-RCTs mean difference (MD) [CI] - 0.60 [- 1.17, - 0.03]; RCTs: - 1.37 [- 4.18, 1.44]), and higher quality of life for RAS (only non-RCTs: MD[CI]: 2.99 [2.02, 3.95]). No significant differences were found for sexual function (non-RCTs: standardized MD[CI]: 0.46[- 0.13, 1.04]; RCTs: SMD[CI]: 0.09[- 0.14, 0.31]). The current meta-analysis suggests potential benefits for RAS over laparoscopy in terms of functional outcomes after rectal cancer resection. The current evidence is limited due to non-randomized controlled trials and reporting of functional outcomes as secondary endpoints.

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Robotic-laparoscopic rectal cancer excision versus traditional laparoscopy.

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Robotic-laparoscopic rectal cancer excision versus traditional laparoscopy.

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