Factors Related to Textbook Outcome in Laparoscopic Liver Resections: a Single Western Centre Analysis

Use of textbook outcome as a quality metric in hepatopancreaticobiliary surgery: a systematic review and meta-analysis

BACKGROUND

Textbook outcomes (TOs) represent the optimal course after surgery. To date, no meta-analysis has assessed the pooled TOs of patients undergoing hepatopancreatobiliary (HPB) surgery and the effect of TO achievement on patient outcomes. This systematic review and meta-analysis aimed to assess TO achievement across different studies and to characterize the effect of TO achievement on patient-related outcomes, including disease-free survival (DFS) and overall survival (OS).

METHODS

PubMed, Embase, and Scopus databases were searched (1990-2024). The criteria used to define TO and the median overall TO in HPB surgery were obtained. In addition, a random-effects meta-analysis was conducted to assess the effect of TO achievement on 5-year OS and DFS.

RESULTS

A total of 27 studies involving 517,304 patients met inclusion criteria. The main criteria used to define TO included absence of readmission and mortality within 30 days after discharge, severe postoperative complications, prolonged hospital stay, and negative surgical margin (R0). Of note, the main factors related to TO achievement were younger patient age and lower American Society of Anesthesiologists score. Overall, the median rates of TOs achieved across procedures were 62.0% (IQR, 48.0%-69.0%) for hepatic procedure, 54.0% (IQR, 41.0%-68.0%) for biliary procedure, 46.0% (IQR, 42.0%-46.5%) for combined hepatopancreatic procedure, 45.0% (IQR, 30.5%-59.0%) for pancreatic procedure, 33.0% (IQR, 32.2%-34.0%) for liver transplantation, and 19.5% (IQR, 16.8%-22.3%) for combined hepatobiliary procedure. TO achievement was associated with improved odds of 5-year OS (odds ratio [OR], 1.22 [95% CI, 1.20-1.24]) and 5-year DFS (OR, 1.26 [95% CI, 1.16-1.37]).

CONCLUSION

Overall, hepatic and biliary operations had the highest TO achievement, followed by pancreatic procedures. In contrast, hepatobiliary surgery and liver transplantation had the lowest TO. There was a significant discrepancy in the definition of TO across different studies, highlighting the need for consensus on the definition of TO.

Achieving textbook outcome in liver resection for hepatocellular carcinoma: malnutrition's pivotal role

PURPOSE

To investigate the impact of textbook outcome (TO) achievement on survival post-liver resection for hepatocellular carcinoma (HCC) and explore the associated factors.

METHODS

We retrospectively reviewed 330 patients diagnosed with HCC who underwent initial liver resection at our hospital between January 2011 and December 2019. We also investigated the achievement rates of five TOs and sub-analyzed the relationship between them and malnutrition. The patient's nutritional status was classified following the Global Leadership Initiative on Malnutrition (GLIM) criteria.

RESULTS

The TO achievement rate was 72.7%. In the prognostic analysis, the TO-achieving group showed significantly longer overall survival (OS) and recurrence-free survival (RFS). Significant differences in age, body mass index, weight loss, muscle mass, serum aspartate aminotransferase level, serum protein induced by vitamin K absence or antagonist-II, tumor characteristics, intraoperative blood loss, perioperative transfusion, and nutritional status were found between the groups.

CONCLUSIONS

TO achievement is associated with OS and RFS post-liver resection for HCC. The TO is valuable for evaluating treatment quality in liver resection. Additionally, malnutrition graded following the GLIM criteria, age, tumor stage, and intraoperative blood loss are independent factors for achieving a TO post-liver resection for HCC.

Textbook outcome in liver surgery for intrahepatic cholangiocarcinoma: defining predictors of an optimal postoperative course using machine learning

BACKGROUND

We sought to define textbook outcome in liver surgery (TOLS) for intrahepatic cholangiocarcinoma (ICC) by considering the implications of perioperative outcomes on overall survival (OS).

METHODS

Using a multi-institutional database, TOLS for ICC was defined by employing novel machine learning (ML) models to identify perioperative factors most strongly predictive of OS ≥ 12 months. Subsequently, clinicopathologic factors associated with achieving TOLS were investigated.

RESULTS

A total of 1556 patients with ICC were included. The ML classification models demonstrated that the absence of post-hepatectomy liver failure, intraoperative blood loss <750 mL, absence of major infectious complications, and R0 resection were the perioperative outcomes associated with prolonged OS, thereby defining TOLS for ICC. On multivariable analysis, older age, ASA class >2, lymph node metastasis, receipt of neoadjuvant therapy, advanced T status, poor histological grade and microvascular invasion were independently associated with lower odds of achieving TOLS (all p-values<0.05). Overall, 60.2 % (n = 936) of the patients achieved TOLS, demonstrating markedly improved OS and recurrence-free survival (RFS) than individuals who did not (both p < 0.05).

CONCLUSION

A standardized definition of TOLS for ICC was established that may be used to evaluate hospital performance at the patient level and help optimize surgical outcomes for patients with ICC.

Realizing Textbook Outcomes Following Liver Resection for Hepatic Neoplasms with Development and Validation of a Predictive Nomogram

BACKGROUND

'Textbook Outcome' (TO) represents an effort to define a standardized, composite quality benchmark based on intraoperative and postoperative endpoints. This study aimed to assess the applicability of TO as an outcome measure following liver resection for hepatic neoplasms from a low- to middle-income economy and determine its impact on long-term survival. Based on identified perioperative predictors, we developed and validated a nomogram-based scoring and risk stratification system.

METHODS

We retrospectively analyzed patients undergoing curative resections for hepatic neoplasms between 2012 and 2023. Rates of TO were assessed over time and factors associated with achieving a TO were evaluated. Using stepwise regression, a prediction nomogram for achieving TO was established based on perioperative risk factors.

RESULTS

Of the 1018 consecutive patients who underwent liver resections, a TO was achieved in 64.9% (661/1018). The factor most responsible for not achieving TO was significant post-hepatectomy liver failure (22%). Realization of TO was independently associated with improved overall and disease-free survival. On logistic regression, American Society of Anesthesiologists score of 2 (p = 0.0002), perihilar cholangiocarcinoma (p = 0.011), major hepatectomy (p = 0.0006), blood loss >1500 mL (p = 0.007), and presence of lymphovascular emboli on pathology (p = 0.026) were associated with the non-realization of TO. These independent risk factors were integrated into a nomogram prediction model with the predictive efficiency for TO (area under the curve 75.21%, 95% confidence interval 70.69-79.72%).

CONCLUSION

TO is a realizable outcome measure and should be adopted. We recommend the use of the nomogram proposed as a convenient tool for patient selection and prognosticating outcomes following hepatectomy.

Textbook outcome of laparoscopic hepatectomy in the context of precision surgery: A single center experience

OBJECTIVE

Laparoscopic hepatectomy (LH) has become a common surgery for the treatment of liver tumor. To evaluate the surgical quality of laparoscopic hepatectomy under the context of precision surgery with Textbook outcome (TO), a comprehensive and holistic assessment approach.

METHODS

A total of 1056 patients who underwent laparoscopic hepatectomy from May 2016 and December 2022 were enrolled in the study. All the patients were performed hepatectomy. The rate of TO and factors associated with achieving TO were examined.

RESULTS

Among the 1056 patients, 75 % patients achieved TO. The main reason limited patients achieving textbook outcomes was prolonged length of hospital stay (LOS). The univariate analysis indicated that age>65, ASA classification ≥3, liver cirrhosis, tumor size > 3 cm, tumor number ≥2, type of primary cancer, and IWATE DSS were significantly associated with non-achievement of TO. The multivariate analysis indicated that the ASA classification ≥3 and advanced difficulty level in IWATE DSS independent factors associated with achieving TO. Reaching TO can significantly prolong the postoperative recurrence time and overall survival time of hepatocellular carcinoma patients.

CONCLUSION

In the context of precision surgery, 75 % patients undergoing laparoscopic hepatectomy achieved a TO. Patients who achieved TO had significantly improved survival.

Defining and predicting textbook outcomes for perihilar cholangiocarcinoma: analysis of factors improving achievement of desired postoperative outcomes

BACKGROUND

Definition of textbook outcome (TO), defined as a single indicator combining the most advantageous short-term outcomes, is still lacking for perihilar cholangiocarcinoma (PHC). The primary endpoint of the present study is to analyze the rate of achievement of a disease-specific TO for PHC within a high volume tertiary referral centre. Secondary endpoints are to identify predictive factors of TO-achievement and to analyze the impact of achieving TO on long-term results.

METHODS

Between 2010 and 2022, a total of 237 patients undergoing combined liver and biliary resection for PHC at tertiary referral centre were included. Disease-specific TO were defined as: no 90-day mortality, no postoperative complications, no readmission, no intraoperative transfusions and resection margins. A logistic regression model was developed to identify predictors associated with TO-achievement. Kaplan-Meier curves were designed to determine TO's impact on survival.

RESULTS

TO was achieved in 60 (25.3%) patients. At multivariate logistic regression, preoperative biliary drainage [odds ratio (OR) 2.90 (1.13-3.40), P =0.026], high prognostic nutritional index [OR 7.11 (6.71-9.43), P =0.007[ and minimally invasive approach [OR 3.57 (2.31-3.62), P =0.013] were identified as independent predictors of TO. High ASA score [OR 0.38 (0.17-0.82), P =0.013] decreased the odds of TO. A significant improvement in both overall survival and disease-free survival was associated to TO fulfilment.

CONCLUSION

Since the achievement of TO correlates with better disease-free and overall survival, every effort should be made to ameliorate modifiable aspects prior to surery: management within referral centres with dedicated experience in biliary tract cancer and preoperative optimization protocol may positively contribute to improve postoperative outcomes, increasing the chance to obtain TO. Moreover, the implementation of advanced minimally invasive programs plays as well.

Textbook outcomes for liver resection: can a medium sized centre have acceptable outcomes?

BACKGROUND

Textbook outcome (TO) is an objective, composite measure of clinical outcomes in surgery. TO in liver surgery has been used in previous international studies to define and compare performance across centres. This study aimed to review TO rates following liver resection at a single institution. The secondary aim was to use a CuSum analysis to evaluate monitoring of performance quality over time for colorectal cancer liver metastases (CRCLM).

METHODS

All patients undergoing liver resection for benign and malignant causes from Christchurch Hospital hepatobiliary unit between 2005 and 2022 were included. Textbook outcomes measures were the absence of; intraoperative incidents, Clavien-Dindo >3 complication, 90 day re-admission, 90 day mortality, R1 resection, and post-operative bile leak/liver failure. Sequential CuSum analysis was performed to review achievement of TO in liver resections for colorectal cancer liver metastases (CRCLM).

RESULTS

Four hundred and seventy-eight patients were included in this study, 54 had resection for benign pathology, 290 for CRCLM and 134 for other malignancies. TO was achieved in 74% of cases overall, with rates for benign, CRCLM and other malignancy being 82%, 73% and 74% respectively (P = 0.405). CuSum analysis documented a deterioration in performance after patient 60, with return to baseline by end of study period.

CONCLUSIONS

TO for liver resection in a medium sized centre in New Zealand are comparable to published rates. It is possible to use process control techniques like CuSum with the binary result of TO to monitor performance, providing opportunity for continuous improvement in surgical units.

Textbook Outcomes in Liver Surgery: a Systematic Review

BACKGROUND

Assessment of the quality of care among patients undergoing hepatectomy may be inadequate using traditional "siloed" postoperative surgical outcome metrics. In turn, the combination of several quality metrics into a single composite Textbook Outcome in Liver Surgery (TOLS) may be more representative of "ideal" surgical care.

METHODS

Adhering to PRISMA guidelines, a search for primary articles on post-operative TOLS evaluation after hepatectomy was performed. Studies that did not present hepatectomy outcomes, pediatric or transplantation populations, duplicated series, and editorials were excluded. Studies were evaluated in aggregate for methodological variation, TOLS rates, factors associated with TOLS, hospital variation, and overall findings.

RESULTS

Among 207 identified publications, 32 observational cohort studies were selected for inclusion in the review. There was a total of 90,077 hepatic resections performed from 1993 to 2020 in the analytic cohort. While TOLS definitions varied widely, all studies used an "all-or-none" composite structure combining a median of 5 (range: 4-7) discrete parameters. Observed TOLS rates varied in the different reported populations from 11.2 to 77.0%. TOLS was associated with patient, hospital, and operative factors.

CONCLUSIONS

This systematic review summarizes the contemporary international experience with TOLS to assess surgical performance following hepatobiliary surgery. TOLS is a single composite metric that may be more patient-centered, as well as better suited to quantify "optimal" care and compare performance among centers performing liver surgery.