Independent risk factors that predict bile leakage after hepatectomy for hepatocellular carcinoma: Cohort study

Impact of sarcopenic obesity on post-hepatectomy bile leakage for hepatocellular carcinoma

BACKGROUND

Post-hepatectomy bile leakage (PHBL) is a potentially fatal complication that can arise after hepatectomy. Previous studies have identified obesity as a risk factor for PHBL. In this study, we investigated the impact of sarcopenic obesity on PHBL in hepatocellular carcinoma (HCC) patients.

METHODS

In total, we enrolled 409 patients who underwent hepatectomy without bilioenteric anastomosis for HCC between January 2010 and August 2021. Patients were grouped according to the presence or absence of PHBL. Patient characteristics, including body mass index and sarcopenic obesity, were then analyzed for predictive factors for PHBL.

RESULTS

Among the 409 HCC patients included in the study, 39 developed PHBL. Male sex, hypertension, cardiac disease, white blood cell counts, the psoas muscle area, and visceral fat area, and intraoperative blood loss were significantly increased in the PHBL (+) group compared with the PHBL (-) group. Multivariate analysis showed that the independent risk factors for the occurrence of PHBL were intraoperative blood loss ≥370 mL and sarcopenic obesity.

CONCLUSIONS

Our results show that it is important to understand whether a patient is at high risk for PHBL prior to surgery and to focus on reducing intraoperative blood loss during surgery for patients with risk factors for PHBL.

Risk factors of postoperative bile leakage after liver resection: A systematic review and meta-analysis

OBJECTIVE

Postoperative bile leakage (POBL) is one of the most common complications after liver resection. However, current studies on the risk factors for POBL and their impacts on surgical outcomes need to be more consistent. This study aims to conduct a meta-analysis to analyze the risk factors for POBL after hepatectomy.

METHODS

We incorporated all eligible studies from Embase, PubMed, and the Web of Science database (until July 2022) into this study. RevMan and STATA software were used to analyze the extracted data.

RESULTS

A total of 39 studies, including 43,824 patients, were included in this meta-analysis. We found that gender, partial hepatectomy, repeat of hepatectomy, extended hepatectomy, abdominal drain, diabetes, Child≥B, solitary tumor, and chemotherapy are the factors of grade B and C POBL. Some recognized risk factors were considered potential risk factors for grade B and C bile leakage because no subgroup analysis was performed, like HCC, cholangiocarcinoma, major resection, posterior sectionectomy, bi-segmentectomy, S4 involved, S8 involved, central hepatectomy, and bile duct resection/reconstruction. Meanwhile, cirrhosis, benign diseases, left hepatectomy, and Segment 1 resection were not significant for grade B and C bile leakage. The influence of lateral sectionectomy, anterior sectionectomy, S1 involved, S3 involved, high-risk procedure, laparoscope, and blood loss>1000 mL on POBL of ISGLS needs further research. Meanwhile, POBL significantly influenced overall survival (OS) after liver resection.

CONCLUSIONS

We identified several risk factors for POBL after hepatectomy, which could prompt the clinician to decrease POBL rates and make more beneficial decisions for patients who underwent the hepatectomy.

Novel Personalized Score Predicts Risk for Postoperative Biliary Leak in Liver Surgery-a Retrospective Database Analysis

BACKGROUND

The number of liver resections is constantly rising over the last decades. Despite the reduction of overall mortality and morbidity in liver surgery, biliary leakage is still a relevant postoperative complication that can lead to a fatal postoperative course. Aim of this analysis is the identification of specific risk factors for postoperative biliary complications after liver resections and the development of a predictive biliary leakage risk score.

METHODS

A single-center, retrospective analysis of 844 liver resections performed in the Department of Visceral, Thoracic and Vascular Surgery, Technische Universität Dresden, between 1/2013 and 12/2019 is conducted to identify risk factors for postoperative biliary leakage and a risk score for biliary leakage after hepatectomy is established based on multivariate regression. The score has been validated by an independent validation cohort consisting of 142 patients.

RESULTS

Overall morbidity is 43.1% with 36% surgical complications and an overall mortality of 4.3%. Biliary leakage occurred in 15.8% of patients. A predictive score for postoperative biliary leakage based on age, major resection, pretreatment with FOLFOX/cetuximab and operating time is created. Patients are stratified to low (< 15%) and high (> 15%) risk with a sensitivity of 67.4% and a specificity of 70.7% in development cohort and a specificity of 68.2% and sensitivity of 75.8% in validation cohort.

CONCLUSIONS

The presented score is robust and has been validated in an independent patient cohort. Depending on the calculated risk, prevention or early treatment can be initiated to avoid bile leakage and to improve postoperative course.

Meta-Analysis of Risk Factors for Bile Leakage After Hepatectomy Without Biliary Reconstruction

Background and Aim: The risk factors for bile leakage after hepatectomy without biliary reconstruction are controversial. This study investigated the risk factors for bile leakage after hepatectomy without biliary reconstruction.

Methods: We searched databases (Embase (Ovid), Medline (Ovid), PubMed, Cochrane Library, and Web of Science) for articles published between January 1, 2000, and May 1, 2021, to evaluate the risk factors for bile leakage after hepatectomy without biliary reconstruction.

Results: A total of 16 articles were included in this study, and the overall results showed that sex (OR: 1.21, 95% CI: 1.04–1.42), diabetes (OR: 1.21, 95% CI: 1.05–1.38), left trisectionectomy (OR: 3.53, 95% CI: 2.32–5.36), central hepatectomy (OR: 3.28, 95% CI: 2.63–4.08), extended hemihepatectomy (OR: 2.56, 95% CI: 1.55–4.22), segment I hepatectomy (OR: 2.56, 95% CI: 1.50–4.40), intraoperative blood transfusion (OR:2.40 95%CI:1.79–3.22), anatomical hepatectomy (OR: 1.70, 95% CI: 1.19–2.44) and intraoperative bleeding ≥1,000 ml (OR: 2.46, 95% CI: 2.12–2.85) were risk factors for biliary leakage. Age >75 years, cirrhosis, underlying liver disease, left hepatectomy, right hepatectomy, benign disease, Child–Pugh class A/B, and pre-operative albumin <3.5 g/dL were not risk factors for bile leakage after hepatectomy without biliary reconstruction.

Conclusion: Comprehensive research in the literature revealed that sex, diabetes, left trisectionectomy, central hepatectomy, extended hemihepatectomy, segment I hepatectomy, intraoperative blood transfusion, anatomical hepatectomy and intraoperative bleeding ≥1,000 ml were risk factors for biliary leakage.

Albumin-Indocyanine Green Evaluation (ALICE) grade predicts bile leakage after hepatic resection

PURPOSE

We investigated the predictors of bile leakage after hepatic resection.

METHODS

The data of 270 consecutive patients who underwent curative hepatic resection in our institute between January, 2016 and April, 2019 were reviewed retrospectively. The patients were assigned to one of two groups according to the presence of bile leakage and the clinicopathological and surgical outcomes were analyzed. Bile leakage was defined by the International Study Group of Liver Surgery (ISGLS) grade.

RESULTS

There were no hospital deaths. The median intraoperative blood loss volume was 167 ml. Bile leakage occurred in 12 patients (4.4%), as ISGLS grade A leakage in 1 and as ISGLS grade B leakage in 11. The mean hospital stay was significantly longer for patients with bile leakage. High-risk procedures, hepatocellular carcinoma, and Albumin-Indocyanine Green Evaluation (ALICE) grade 3 were independent predictors of ISGLS grade B or C postoperative bile leakage. In patients with three high-risk factors, the incidence of bile leakage was 53.9%.

CONCLUSIONS

Based on this retrospective analysis, high-risk procedures, hepatocellular carcinoma, and ALICE grade 3 were independent predictors of bile leakage in patients undergoing hepatic resection. Thus, special care must be taken during surgery to prevent bile leakage in patients with these risk factors.

The impact of bile leakage on long-term prognosis in primary liver cancers after hepatectomy: A propensity-score-matched study

BACKGROUND

The impact of bile leakage (BL) on the long-term prognosis in patients with primary liver cancers after hepatectomy remains unclear.

METHODS

One thousand nine hundred and seventy-one consecutive patients with primary liver cancers who underwent curative hepatectomy were enrolled. 75 patients encountered BL, including 34 long-time BL (LTBL) and 41 short-time BL (STBL) according to 4-weeks demarcation. Variables associated with BL were identified using multiple logistic regression analysis. 75 patients without BL were enrolled into the Non-BL group using a one-to-one propensity score matched analysis before assessing the impact of BL on the long-term prognosis. The levels of interleukin-6 (IL-6) and C-reactive protein (CRP) in the serum and drain fluid were detected and compared.

RESULTS

The tumor size, type of liver cancer, operation time, blood loss and blood transfusion were independent risk factors for BL. The long-term survival showed no difference between the patients with and without BL (p > 0.05), while the LTBL was a significant predictor of poor long-term prognosis (p < 0.001). Compared with the patients without BL, the patients with BL had a higher level of IL-6 from postoperative day (POD) 1 to POD 60, and a higher level of CRP from POD 7 to POD 60. By POD 60, the levels of IL-6 and CRP hadn't restored to the normal level in the LTBL group.

CONCLUSIONS

The LTBL has a negative impact on the long-term prognosis of patients with primary liver cancers after hepatectomy, in which the inflammatory responses may play a pivotal role.