Indocyanine green fluorescence angiography could reduce the risk of anastomotic leakage in rectal cancer surgery: a systematic review and meta-analysis of randomized controlled trials.

AIM: Several papers have shown that use of indocyanine green (ICG) decreases incidence of anastomotic leakage (AL) during colonic surgery, but no clear evidence has been found for rectal cancer surgery. Therefore, with this systematic review and meta-analysis of randomized controlled trials (RCTs) we aimed to assess if ICG could also reduce risk of AL in rectal cancer surgery. METHOD: PubMed, Scopus, CINAHL and Cochrane databases were searched for RCTs assessing the effect of intraoperative ICG on the incidence of AL of the colorectal anastomosis. Pooled relative risk (RR) and pooled risk difference (RD) were obtained using models with random effects. Risk of bias was evaluated with the Rob2 tool and the quality of evidence was assessed using the GRADE Pro tool. RESULTS: Four RCTs were included for analysis, with a total of 1510 patients (743 controls and 767 ICG patients). The rate of AL was 9% in the ICG group (69/767) and 13.9% (103/743) in the control group (p = 0.003, RR -0.5, 95% CI -0.827 to -0.172, heterogeneity test 0%, p = 0.460). The RD in terms of incidence of AL was significantly decreased by 4.51% (p = 0.031, 95% CI -0.086 to -0.004, heterogeneity test 28%, p = 0.182) when using ICG. CONCLUSION: Our meta-analysis suggested that use of ICG during rectal cancer surgery could reduce the rate of AL.

Minimally Invasive Surgery for Perihilar Cholangiocarcinoma: A Systematic Review of the Short- and Long-Term Results.

Surgery and postoperative systemic chemotherapy represent the standard treatment for patients with perihilar cholangiocarcinoma (PHC). Minimally Invasive Surgery (MIS) for hepatobiliary procedures has spread worldwide in the last two decades. Since resections for PHC are technically demanding, the role of MIS in this field is yet to be established. This study aimed to systematically review the existing literature on MIS for PHC, to evaluate its safety and its surgical and oncological outcomes. A systematic literature review on PubMed and SCOPUS was performed according to the PRISMA guidelines. Overall, a total of 18 studies reporting 372 MIS procedures for PHC were included in our analysis. A progressive increase in the available literature was observed over the years. A total of 310 laparoscopic and 62 robotic resections were performed. A pooled analysis showed an operative time ranging from 205.3 ± 23.9 and 840 (770-890) minutes, and intraoperative bleeding between 101.1 ± 13.6 and 1360 ± 809 mL. Minor and major morbidity rates were 43.9% and 12.7%, respectively, with a 5.6% mortality rate. R0 resections were achieved in 80.6% of patients and the number of retrieved lymph nodes ranged between 4 (3-12) and 12 (8-16). This systematic review shows that MIS for PHC is feasible, with safe postoperative and oncological outcomes. Recent data has shown encouraging results and more reports are being published. Future studies should address differences between robotic and laparoscopic approaches. Given the management and technical challenges, MIS for PHC should be performed by experienced surgeons, in high-volume centers, on selected patients.

Challenging Scenarios and Debated Indications for Laparoscopic Liver Resections for Hepatocellular Carcinoma.

Laparoscopic liver resections (LLRs) have been increasingly adopted for the treatment of hepatocellular carcinoma (HCC), with safe short- and long-term outcomes reported worldwide. Despite this, lesions in the posterosuperior segments, large and recurrent tumors, portal hypertension, and advanced cirrhosis currently represent challenging scenarios in which the safety and efficacy of the laparoscopic approach are still controversial. In this systematic review, we pooled the available evidence on the short-term outcomes of LLRs for HCC in challenging clinical scenarios. All randomized and non-randomized studies reporting LLRs for HCC in the above-mentioned settings were included. The literature search was run in the Scopus, WoS, and Pubmed databases. Case reports, reviews, meta-analyses, studies including fewer than 10 patients, non-English language studies, and studies analyzing histology other than HCC were excluded. From 566 articles, 36 studies dated between 2006 and 2022 fulfilled the selection criteria and were included in the analysis. A total of 1859 patients were included, of whom 156 had advanced cirrhosis, 194 had portal hypertension, 436 had large HCCs, 477 had lesions located in the posterosuperior segments, and 596 had recurrent HCCs. Overall, the conversion rate ranged between 4.6% and 15.5%. Mortality and morbidity ranged between 0.0% and 5.1%, and 18.6% and 34.6%, respectively. Full results according to subgroups are described in the study. Advanced cirrhosis and portal hypertension, large and recurrent tumors, and lesions located in the posterosuperior segments are challenging clinical scenarios that should be carefully approached by laparoscopy. Safe short-term outcomes can be achieved provided experienced surgeons and high-volume centers.

From "Cure" to "Care": The Role of the MultiDisciplinary Team on Colorectal Cancer Patients' Satisfaction and Oncological Outcomes.

Background: MultiDisciplinary Team (MDT) are held to undertake decisions regarding the whole aspect of oncological diseases. Over the years, they acquired a collaborative approach where clinical decisions are shared by all members. Different guidelines recommend the implementation of MDT, in order to improve the outcomes of these patients. Our aim is to evaluate how the implementation of MDT affects the patients' satisfaction and adherence to treatment. Methods: A survey was submitted to every patient affected by colorectal cancer treated by the MDT of Sant'Andrea Hospital (Rome, IT). The investigation period was January 2017-March 2020. Data from patients inside the MDT were compared with patients outside the MDT to evaluate a reduction in waiting times. Results: A total of 591 patients were collected. A total of 355 patients with colorectal neoplasia were included in our analysis. Cumulative overall survival was 79%. The average waiting time for computed tomography or colonoscopy was 14.9 days for patients in the MDT versus 24.5. A total of 201 patients were eligible for our satisfaction survey. An 89.5% of patients felt followed in their treatment. A 93.5% of patients expressed a high grade of satisfaction for the MDT design. Conclusion: Our study confirms the importance of a well-structured MDT. Dedicated slots shorten the waiting time, leading to better satisfaction and faster diagnosis. Patients' satisfaction should be considered as an index of good practice when it comes to oncological patients' treatment.

Laparoscopic versus Open Surgery for Gastric Cancer in Western Countries: A Systematic Review and Meta-Analysis of Short- and Long-Term Outcomes.

Background. The advantages of a laparoscopic approach for the treatment of gastric cancer have already been demonstrated in Eastern Countries. This review and meta-analysis aims to merge all the western studies comparing laparoscopic (LG) versus open gastrectomies (OG) to provide pooled results and higher levels of evidence. Methods. A systematic literature search was performed in MEDLINE(PubMed), Embase, WebOfScience and Scopus for studies comparing laparoscopic versus open gastrectomy in western centers from 1980 to 2021. Results. After screening 355 articles, 34 articles with a total of 24,098 patients undergoing LG (5445) or OG (18,653) in western centers were included. Compared to open gastrectomy, laparoscopic gastrectomy has a significantly longer operation time (WMD = 47.46 min; 95% CI = 31.83−63.09; p < 0.001), lower blood loss (WMD = −129.32 mL; 95% CI = −188.11 to −70.53; p < 0.0001), lower analgesic requirement (WMD = −1.824 days; 95% CI = −2.314 to −1.334; p < 0.0001), faster time to first oral intake (WMD = −1.501 days; 95% CI = −2.571 to −0.431; p = 0.0060), shorter hospital stay (WMD = −2.335; 95% CI = −3.061 to −1.609; p < 0.0001), lower mortality (logOR = −0.261; 95% the −0.446 to −0.076; p = 0.0056) and a better 3-year overall survival (logHR 0.245; 95% CI = 0.016−0.474; p = 0.0360). A slight significant difference in favor of laparoscopic gastrectomy was noted for the incidence of postoperative complications (logOR = −0.202; 95% CI = −0.403 to −0.000 the = 0.0499). No statistical difference was noted based on the number of harvested lymph nodes, the rate of major postoperative complication and 5-year overall survival. Conclusions. In Western centers, laparoscopic gastrectomy has better short-term and equivalent long-term outcomes compared with the open approach, but more high-quality studies on long-term outcomes are required.

Pathologic stage of ypT0N+ rectal cancers following neo-adjuvant treatment: clinical interpretation of an orphan status.

Approximately 20% of locally advanced rectal cancers treated with neoadjuvant therapy achieve a pathologic complete response, but approximately 10% of them present residual nodal metastases (ypT0N+). We aimed this research to compare the survival rates of ypT0/ypTisN+ and stage 3a rectal cancer patients. A large multicenter study recently investigated ypT0/ypTis rectal cancers treated between 2005 and 2015 in Italy and Spain. ypT0/ypTisN+ were selected and compared with stage 3a rectal cancers treated at the same institutions with upfront surgery (ySICO group). Additionally, the SEER database was searched for patients with stage 3a rectal cancers treated with surgery in the same years. Overall survival (OS), disease-free survival (DFS), and disease-specific survival (DSS) were analyzed using Kaplan-Meier curves and random survival forest analysis (RSF). The ySICO study population consisted of 19 ypT0/2ypTisN+ (mean follow-up 41.8 months) and 72 Stage 3a patients (mean follow-up 56.9 months). These subgroups were comparable, but stage 3a patients were treated more frequently with adjuvant therapy (90.5% vs 61.9%, p 0.0001). No significant differences were reported between the ySICO subgroups for the OS, DFS, and DSS curves. When the 1213 SEER patients were added to Stage 3a, the RFS model failed to differentiate OS between groups that presented identical survival. Root analysis showed that adjuvant therapy was the only variable differentiating OS and DSS in the ySICO population. These findings suggest that ypT0/ypTisN+ and stage 3a rectal cancers could be ranked together based on their similar outcomes and pathologic assessment, and they stress the importance of adjuvant therapy in patients presenting with residual nodal metastases.

Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) for advanced hepatocellular carcinoma with macrovascular invasion.

Patients with advanced hepatocellular carcinoma (HCC) and macrovascular invasion (MVI) have dismal prognosis and are referred to systemic treatment or palliation. To investigate the outcomes of patients with HCC and MVI undergoing the associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) procedure. Demographics and operative data were retrospectively reviewed. All types of hepatectomies and all types of ALPPS modifications were included. MVI was categorized according to the Japanese Liver Cancer Study Group classification. 28 patients were included. Viral aetiology was the most common cause of chronic liver disease (89.3%). 85.7% of patients were cirrhotic, with a median MELD score of 9 (7-10). MVI of the hepatic veins or inferior vena cava was diagnosed in 46.4% of patients while portal vein involvement was present in 64.2% of cases. Four patients (14.2%) were diagnosed with bile duct involvement. No patients died after Step 1 while complications occurred in 21.4% of cases. Following step 2, 3 patients (11.5%) died and 20 (69.2%) developed complications. Grade B and C post-hepatectomy liver failure occurred in 57.6% and 11.5% of patients, respectively. After a median follow-up of 18 months (7-35), median survival was 22 months (3-40). Eleven patients (39.3%) recurred. Median disease-free survival was 15 months (5-26). The ALPPS procedure is an extreme rescue approach in otherwise inoperable advanced HCC with MVI. The procedure is associated with high morbidity and mortality and patients' selection is pivotal. Oncological outcomes are safe and should be further investigated.

Distal Pancreatectomy with Celiac Axis Resection: Systematic Review and Meta-Analysis.

BACKGROUND: Major vascular invasion represents one of the most frequent reasons to consider pancreatic adenocarcinomas unresectable, although in the last decades, demolitive surgeries such as distal pancreatectomy with celiac axis resection (DP-CAR) have become a therapeutical option. METHODS: A meta-analysis of studies comparing DP-CAR and standard DP in patients with pancreatic adenocarcinoma was conducted. Moreover, a systematic review of studies analyzing oncological, postoperative and survival outcomes of DP-CAR was conducted. RESULTS: Twenty-four articles were selected for the systematic review, whereas eleven were selected for the meta-analysis, for a total of 1077 patients. Survival outcomes between the two groups were similar in terms of 1 year overall survival (OS) (odds ratio (OR) 0.67, 95% confidence interval (CI) 0.34 to 1.31, p = 0.24). Patients who received DP-CAR were more likely to have T4 tumors (OR 28.45, 95% CI 10.46 to 77.37, p < 0.00001) and positive margins (R+) (OR 2.28, 95% CI 1.24 to 4.17, p = 0.008). Overall complications (OR, 1.72, 95% CI, 1.15 to 2.58, p = 0.008) were more frequent in the DP-CAR group, whereas rates of pancreatic fistula (OR 1.16, 95% CI 0.81 to 1.65, p = 0.41) were similar. CONCLUSIONS: DP-CAR was not associated with higher mortality compared to standard DP; however, overall morbidity was higher. Celiac axis involvement should no longer be considered a strict contraindication to surgery in patients with locally advanced pancreatic adenocarcinoma. Considering the different baseline tumor characteristics, DP-CAR may need to be compared with palliative therapies instead of standard DP.

The Emergency Surgery Frailty Index (EmSFI): development and internal validation of a novel simple bedside risk score for elderly patients undergoing emergency surgery.

BACKGROUND: Frailty assessment has acquired an increasing importance in recent years and it has been demonstrated that this vulnerable profile predisposes elderly patients to a worse outcome after surgery. Therefore, it becomes paramount to perform an accurate stratification of surgical risk in elderly undergoing emergency surgery. STUDY DESIGN: 1024 patients older than 65 years who required urgent surgical procedures were prospectively recruited from 38 Italian centers participating to the multicentric FRAILESEL (Frailty and Emergency Surgery in the Elderly) study, between December 2016 and May 2017. A univariate analysis was carried out, with the purpose of developing a frailty index in emergency surgery called "EmSFI". Receiver operating characteristic curve analysis was then performed to test the accuracy of our predictive score. RESULTS: 784 elderly patients were consecutively enrolled, constituting the development set and results were validated considering further 240 consecutive patients undergoing colorectal surgical procedures. A logistic regression analysis was performed identifying different EmSFI risk classes. The model exhibited good accuracy as regard to mortality for both the development set (AUC = 0.731 [95% CI 0.654-0.772]; HL test χ2 = 6.780; p = 0.238) and the validation set (AUC = 0.762 [95% CI 0.682-0.842]; HL test χ2 = 7.238; p = 0.299). As concern morbidity, our model showed a moderate accuracy in the development group, whereas a poor discrimination ability was observed in the validation cohort. CONCLUSIONS: The validated EmSFI represents a reliable and time-sparing tool, despite its discriminative value decreased regarding complications. Thus, further studies are needed to investigate specifically surgical settings, validating the EmSFI prognostic role in assessing the procedure-related morbidity risk.

A positive proximal resection margin is associated with anastomotic complications following primary ileocaecal resection for Crohn's disease.

PURPOSES: Bowel resection in patients with Crohn's disease (CD) has a high reported rate of postoperative complications and surgical recurrence. A macroscopically normal resection margin is recommended in CD surgery as wider margins do not translate in reduced recurrence rates. The aim of this study was to evaluate the association between resection margin status and anastomotic complications following ileocaecal resection for primary CD. METHODS: All patients treated with ileocaecal resection for primary CD from 2010 to 2018 were included in this retrospective observational study. Emergency operations and recurrent CD were excluded. Patients in whom an anastomosis was not fashioned at the time of the surgery were also excluded. Histopathology data collected included macroscopic description, presence of macroscopic and microscopic involvement of the proximal and distal resection margins. The primary outcome was the rate of positive resection margin in patients who developed anastomotic complications (anastomotic leaks and intra-abdominal collections), and the secondary outcomes were overall complications rate, length of hospital stay, reoperations and rehospitalisation within 30 days. RESULTS: A total of 104 patients were included. The proximal resection margin was microscopically involved in 19 patients (18.2%). Ten patients (9.6%) developed intra-abdominal anastomotic related complications, with 5 patients out of 10 (50%) in the group of postoperative anastomotic complications having a positive microscopic proximal margin at histology, compared to 14 patients (14.9%) in the group that did not develop anastomotic complications (p < 0.0001). CONCLUSIONS: Microscopic involvement of the proximal resection margin is more frequent in patients who develop postoperative anastomotic complications following elective ileocaecal resection for primary CD.