Digestive Surgery最新文献

Introduction: Multifocal intrahepatic cholangiocarcinoma (m-iCCA) is a complex and aggressive form of primary liver cancer, often associated with poor outcomes. Although surgical resection is considered the only curative treatment for intrahepatic cholangiocarcinoma (iCCA), multifocality is frequently regarded as a contraindication due to the high risk of recurrence and limited survival benefits. Advances in surgical techniques and evolving treatment strategies have reopened discussions about the feasibility of resection in these cases.

Methods: We conducted this systematic review according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. A study protocol for the review was registered in the International Prospective Register of Systematic Reviews database. We systematically searched PubMed, Web of Science, MEDLINE, and ScienceDirect databases up to July 30, 2024, for studies analyzing surgical treatment outcomes for m-iCCA. We assessed the quality of the included studies according to the Newcastle-Ottawa Scale (NOS).

Results: After our initial search, 2,482 articles were found related to this topic and 381 articles were left for screening. We checked each article against the eligibility criteria and selected for the full-text analysis. Ten articles with 2,392 patients who had m-iCCA were included in our review. The reviewed studies reported extensive surgical procedures, such as extended hemihepatectomy and associating liver partition and portal vein ligation for staged hepatectomy, with median survival ranging from 18.9 to 27 months. Recurrence rates were higher in m-iCCA patients (67.8-74.3%) compared to solitary iCCA cases (52.4-60.5%), with recurrence-free survival as short as 4.5 months. Adjuvant chemotherapy was frequently used, although its effectiveness in terms of survival was inconsistent. One study reported a 5-year survival rate of 12.9% for surgical patients compared to 0% for non-operated patients. Survival outcomes were influenced by adverse prognostic indicators such as lymph node metastases and perineural invasion.

Conclusion: Surgical resection for m-iCCA, while associated with high recurrence rates (67.8-74.3%), provides a survival advantage over nonsurgical management (median overall survival: 18.9-27 months vs. 8 months; 5-year survival: 12.9% vs. 0%) for carefully selected patients. More studies are needed to improve patient selection and refine treatment approaches to enhance long-term outcomes.

Introduction: Partial hepatectomy (PH) remains associated with complication rates around 30-50%. Delayed return of gastrointestinal function (DRGF) has been reported in 10-20%. This study aimed to assess DRGF predictors after PH.

Methods: This study included all consecutive adult patients undergoing PH between January 01, 2010, and December 12, 2019. DRGF was defined as the need for postoperative nasogastric tube (NGT) insertion. Patients leaving the operation room with a NGT were excluded. Independent DRGF predictors were identified with multivariable logistic binary regression.

Results: A total of 501 patients were included. DRGF occurred in 82 patients (16%). Among DRGF patients, 17% (n = 14) needed a second NGT placement. DRGF incidences were similar before and after Enhanced Recovery after Surgery implementation in 2013 (16/78 = 20% vs. 66/423 = 16%, p = 0.305). A hundred-and-twelve patients (22%) underwent a minimally invasive approach and DRGF incidence was significantly lower in this group (5/112 = 4.5% vs. 77/389 = 19.8%, p < 0.001). DRGF was more frequent after major PH (55/238 = 23% vs. 27/263 = 10%, p < 0.001). DRGF occurred more often in patients with preoperative embolization (26/88 = 30% vs. 55/407 = 14%, p < 0.001), biliary anastomosis (20/48 = 42% vs. 61/450 = 14%, p < 0.001), and extrahepatic resection (37/108 = 34% vs. 45/393 = 11%, p < 0.001). Patients with DRGF had longer median operation duration (374 vs. 263 min, p < 0.001), more biliary leaks/bilomas (27/82 = 33% vs. 33/419 = 7.9%, p < 0.001), and higher median blood loss (1,088 vs. 701 mL, p < 0.001). DRGF patients developed more pneumonia (14/22 = 64% vs. 8/22 = 36%, p < 0.001) and had longer median length of stay (19 vs. 8 days, p < 0.001). On multivariable analysis, operation duration (OR 1.005, 95% CI: 1.002-1.008, p < 0.001), major hepatectomy (OR 3.606, 95% CI: 1.931-6.732), and postoperative biloma/biliary leak (OR 6.419, 95% CI: 3.019-13.648, p < 0.001) were independently associated with DRGF occurrence.

Conclusion: Postoperative DRGF occurred in 16% of the patients and was associated with a longer length of stay. Surgery duration, major PH and postoperative biloma/biliary leak were found as independent predictors of DRGF.

Introduction: Partial hepatectomy (PH) remains associated with complication rates around 30-50%. Delayed return of gastrointestinal function (DRGF) has been reported in 10-20%. This study aimed to assess DRGF predictors after PH.

Methods: This study included all consecutive adult patients undergoing PH between January 01, 2010, and December 12, 2019. DRGF was defined as the need for postoperative nasogastric tube (NGT) insertion. Patients leaving the operation room with a NGT were excluded. Independent DRGF predictors were identified with multivariable logistic binary regression.

Results: A

Introduction: In gastric cancer surgery, an adequate D2 lymphadenectomy is associated with improved cancer-specific survival. The aim of this study was to test the reliability of a new score (PhotoNodes Score [PNS]) conceived to rate the quality of lymphadenectomy in minimally invasive gastrectomy. The primary outcome of the study was to assess the inter-observer agreement among the reviewers assigning the score. The secondary outcome was the association between PNS and survival.

Methods: This is a multicentric observational prospective study enrolling patients undergoing minimally invasive gastrectomy for gastric cancer with D2 lymphadenectomy. A set of laparoscopic/robotic images will be collected from each patient. Based on each set of images, the quality of lymphadenectomy performed will be rated with the new PNS by three surgeons. Fleiss' Kappa measure of agreement will be used to study the rating agreement among examining surgeons. The PNS score will correlate with disease-free and overall survival.

Conclusion: The spread of minimally invasive approaches in oncologic gastric surgery made the collection of intraoperative images easier; for this reason, we believe that PNS could represent a new and efficient tool to assess the quality of D2 lymphadenectomy in clinical practice. The PhotoNodes study was registered at ClinicalTrials.gov #NCT06466902.

Introduction: This study investigated the relationship between textbook outcomes of liver surgery (TOLS) and overall survival (OS) in patients who underwent curative-intent resection of GBC.

Methods: Patients with GBC who underwent curative-intent resection between 2014 and 2021 were selected from 16 hospitals. Patients were divided into either the TOLS group or the non-TOLS group, according to whether TOLS were observed. Patients who died within 90 days of surgery were excluded prior to the survival analysis. Log-rank test was used to compare the difference in the OS rate between TOLS and non-TOLS groups. Univariate and multivariate analyses were performed using Cox regression analysis to identify factors independently associated with OS.

Results: A total of 913 patients were selected, 565 (61.9%) exhibited TOLS. The 5-year OS rate in the TOLS group was significantly higher than that in the non-TOLS group (45.4% vs. 21.9%; p < 0.001). Multivariate Cox regression analysis confirmed TOLS, total bilirubin level >54 µmol/mL, carcinoembryonic antigen level >5 µg/mL, CA 19-9 level >37 U/L, poor differentiation, stages T2 and T3/4 according to the 8th edition AJCC T staging manual, N1 and N2 according to the 8th edition AJCC N staging manual, and adjuvant chemotherapy as independent risk factors that affect OS after curative-intent resection of GBC.

Conclusion: Among patients who undergo curative-intent resection of GBC, approximately 61.9% experience TOLS. TOLS are not only the optimal short-term outcome but also associated with long-term survival.

Introduction: Pancreatic ductal adenocarcinoma (PDAC) has a poor prognosis and lacks local treatment options. This study aimed to assess the feasibility and safety of the first-in-human intraoperative ultrasound-guided intratumoral injection of radioactive holmium-166 microsphere in patients with PDAC.

Methods: Patients with proven PDAC eligible for open surgical resection were included. If resection was abandoned during exploration, study intervention was performed. Feasibility was defined by injection success and on-/off-target radiation. Safety was based on adverse event (AE) monitoring for 12 weeks categorized by severity grade and study attribution.

Results: Three of the thirteen included patients received study intervention. Injection was successful in all 3 patients. Mean tumor doses of 5.0, 17.0, and 39.0 Gy and maximum tumor doses of 25.0, 41.0 and 256.0 Gy were achieved. Off-target radiation was found once in the lungs and once in the colon with a mean dose <1.0 Gy. There were no AEs with high study attribution, 16, 14, and 19 AEs with low study attribution, including 3, 2, and 4 AEs with grade ≥3. Holmium-166 microspheres appeared hyperdense on CT.

Conclusion: Intratumoral injection of holmium-166 microspheres in patients with unresectable PDAC seems feasible and safe. Research into minimally invasive image-guided application is advised.

Background: Esophagectomy, the cornerstone in the multimodal treatment of esophageal cancer, has evolved from open surgery to minimally invasive esophagectomy (MIE) in recent decades. MIE reduces complications, facilitates faster recovery, and provides comparable or superior oncologic outcomes and survival rates compared to open surgery.

Summary: Since the early 2000s, robot-assisted minimally invasive esophagectomy (RAMIE) has emerged, offering enhanced precision over MIE through features such as three-dimensional visualization, improved instrument dexterity, tremor filtration, and motion scaling. These innovations help overcome the challenges of MIE, particularly in the thoracic phase, where limited access and reduced instrument dexterity hamper the procedure. RAMIE is associated with lower complication rates, particularly pulmonary complications, improved recovery, and comparable oncological outcomes. Despite higher initial costs, its potential to reduce complications makes it financially comparable to other approaches. Moreover, mastering RAMIE requires navigating a significant learning curve, making collaboration and training vital. The integration of artificial intelligence and advancements in robotic platforms, including single-port systems, will broaden patient eligibility and improve outcomes.

Key messages: RAMIE has established itself as an integral part of modern surgical practice and will continue to evolve, driving further innovation. Collaboration and training are essential for refining techniques and ensuring safe and effective implementation.

Introduction: This study aims to investigate the current evidence regarding long-term outcomes using laparoscopic peritoneal lavage (LPL) versus primary bowel resection (PR) in Hinchey III diverticulitis.

Methods: A systematic review was undertaken based upon articles published between January 1, 2000, and March 1, 2024. Databases Pubmed, Scopus, and Embase were used employing the key search terms "Diverticulitis" and "Peritoneal Lavage." Articles were selected according to the PRISMA guidelines and statistical analysis was undertaken. Cumulative analysis of diverticulitis recurrence and secondary outcomes of disease-related mortality, serious adverse events, stoma incidence, reoperation, and readmission rates were performed.

Results: An initial search identified 506 articles for review. A total of 294 patients were included for final analysis from 3 prospective randomized controlled trials. There was no significant difference in disease-related mortality or serious adverse events between LPL and PR. There was significantly decreased likelihood of having a stoma in the LPL group; however, there was also a significantly increased likelihood of having recurrent diverticulitis. There was heterogenicity across all trials.

Conclusion: There is a paucity of level 1 evidence available regarding the long-term outcomes of Hinchey III diverticulitis managed with LPL. At 3-year follow-up, there is a significantly decreased likelihood of having a stoma, tempered by the fact that there is a significantly increased likelihood of having recurrent diverticulitis. Further homogenous high-quality randomized studies are required to clarify whether LPL shows long-term benefit over PR.

Introduction: The proposed centralisation of colonic cancer surgery (CCS) to dedicated cancer centres may overburden such units while removing the opportunity for patients to receive treatment locally. This study presents outcomes of patients undergoing CCS in a regional hospital by a fellowship-trained colorectal surgeon.

Methods: Demographic, perioperative, postoperative, and oncological outcomes for 50 successive patients who underwent CCS in a regional hospital were collected. Outcomes were compared to colorectal cancer key performance indicators and textbook outcomes.

Results: Fifty patients (56% male) were identified, of whom 41 (82%) underwent elective surgery. The median follow-up was 49 months. Operations performed included 31 (62%) right hemicolectomies, 18 (36%) high anterior resections, 1 (2%) subtotal colectomy, and 1 (2%) low anterior resection. The majority (64%, n = 32) were completed laparoscopically. Anastomotic leak rate was 4.3% (n = 2). The major morbidity rate (Clavien-Dindo ≥III) was 14% (n = 7). Readmission, reoperation, and mortality at 30 days were 0%, 8%, and 0%, respectively. The R0 resection rate was 98% with a median lymph node yield of 20. Textbook outcome was achieved in 27 patients (54%). Overall survival at 1, 3, and 5 years was 96%, 77%, and 77%, respectively. Disease-free survival at 1, 3, and 5 years was 86%, 77%, and 75%.

Conclusion: CCS can be delivered safely and effectively in regional hospitals under the care of appropriately supported subspecialists. Both patient and healthcare system benefit from the delivery of high-quality oncological surgery locally, reducing the burden on tertiary centres. The projected doubling of colorectal cancer cases by 2040 requires appropriate utilisation of available resources.

Introduction: This study aimed to evaluate whether the retrieval of 15 or more lymph nodes (LN) during gastrectomy for cancer is associated with better survival and more accurate pathological staging.

Methods: Patients that underwent gastrectomy between 2011 and 2016 were reviewed from the Dutch Upper Gastrointestinal Cancer Audit. Patients with <15 and ≥15 LN retrieved were compared after propensity-score matching based on patient and tumor characteristics. The primary endpoint was 3-year overall survival.

Results: A total of 2,047 patients were included in the study. After propensity score matching, 522 patients with ≥15 LNs were matched to 522 patients with <15 LNs. There was no statistically significant difference in overall survival between both groups with 3-year survival rates of 56% versus 59%, respectively. Patients with ≥15 LNs had a more advanced pN-category. While median survival was higher for patients with ≥15 LNs versus <15 LNs in the subgroups pN2, pN3a, and pN3b, no statistically significant differences were found. Similar results were found in the propensity score matched cohort using 23 LNs as cut-off.

Conclusion: ≥15 LNs retrieved during gastrectomy for cancer was associated with higher pN-stage, likely as a result of stage migration. Three-year overall survival was comparable for patients with ≥15 LNs and patients with <15 LNs retrieved.

Introduction: Maximum oxygen uptake (VO2max) is a predictor for postoperative complications after esophagectomy. Cardiopulmonary exercise test (CPET) is the golden standard for measuring VO2max. The alternative steep ramp test (SRT) is less strenuous with several benefits, providing an estimation of VO2max. This study aimed to determine whether SRT is a reliable alternative for CPET to evaluate preoperative fitness.

Methods: A total of 113 patients were included in this study. The agreement between SRT and CPET was analyzed using a t test, Intraclass correlation coefficient (ICC), and the Bland-Altman analysis. The threshold for adequate preoperative fitness was set at 17.0 mL/kg/min.

Results: The mean difference between CPET and SRT was 2.77 mL/kg/min (95% confidence interval [CI]: 2.14-3.41). The ICC was 0.79 (95% CI: 0.70-0.85). The upper limit of agreement of the Bland-Altman was 9.44. The addition of 9.44 to the CPET threshold gives an SRT threshold of 26.44 mL/kg/min. Thirty-one (27.4%) patients scored higher than the SRT threshold.

Conclusion: The SRT VO2max differs from VO2max as measured by CPET. However, the difference was found to be clinically irrelevant for a substantial portion of patients. Hence, SRT is a promising alternative to CPET for determining physical fitness and might render CPET obsolete for fit individuals.