Morbidity of major hepatic resections: a 100-case prospective study

Controlled low central venous pressure maintenance level during laparoscopic hepatectomy negatively associated with PHLF incidence: a retrospective propensity score matching study

BACKGROUND

Posthepatectomy liver failure (PHLF), the most serious complication after hepatectomy, may evoke multisystemic complications and even mortality. Despite numerous studies demonstrated the safety and efficacy of controlled low central venous pressure (CLCVP), the optimal central venous pressure (CVP) maintenance level during CLCVP and its relationship with PHLF remain controversial. Therefore, the present study aimed to evaluate the association between the lowest CVP maintenance level during CLCVP and PHLF.

METHODS

755 patients who underwent laparoscopic hepatectomy at Sun Yat-Sen Memorial Hospital between January 2017 and March 2021 were recruited. Univariate and multivariate analyses were performed to determine the effect of the lowest CVP maintenance level on PHLF. After implementing propensity score matching (PSM) to equalize demographic confounders, univariate comparisons and subgroup analyses were conducted to investigate the impact of the lowest CVP maintenance level on PHLF in patients who underwent CLCVP.

RESULTS

Univariate and multivariate analyses identified intraoperative lowest CVP maintenance level < 2 mmHg as an independent risk factor for PHLF (P = 0.041; OR, 0.520; 95% CI 0.277 to 0.974). Following 1:1 PSM in individuals who received CLCVP, the lowest CVP maintenance level < 2 mmHg was associated with heightened PHLF incidence (P = 0.048) and elevated intraoperative lactate level (P = 0.011). Subgroup analyses revealed that the above effect of the lowest CVP maintenance level occurred mainly in elderly individuals or those with prolonged portal blockade.

CONCLUSION

During laparoscopic hepatectomy, excessively low CVP maintenance level should be avoided to decrease the risk of tissue malperfusion and PHLF, especially in elderly or prolonged portal blockade patients.

Incidence and risk factors of postoperative delirium following hepatic resection: a retrospective national inpatient sample database study

BACKGROUND

Postoperative delirium (POD) is a common complication after major surgery and can cause a variety of adverse effects. However, no large-scale national database was used to assess the occurrence and factors associated with postoperative delirium (POD) following hepatic resection.

METHODS

Patients who underwent hepatic resection from 2015 to 2019 were screened using the International Classification of Diseases (ICD) 10th edition clinical modification code from the National Inpatient Sample (NIS) Database. Peri-operative factors associated with delirium were screened and underwent statistical analysis to identify independent predictors for delirium following hepatic resection.

RESULTS

A total of 80,070 patients underwent hepatic resection over a five-year period from 2015 to 2019. The overall occurrence of POD after hepatic resection was 1.46% (1039 cases), with a slight upward trend every year. The incidence of elective admission was 6.66% lower (88.60% vs. 81.94%) than that of patients without POD after hepatic resection and 2.34% (45.53% vs. 43.19%) higher than that of patients without POD in teaching hospitals (P < 0.001). In addition, POD patients were 6 years older (67 vs. 61 years) and comprised 9.27% (56.69% vs. 47.42%) more male patients (P < 0.001) compared to the unaffected population. In addition, the occurrence of POD was associated with longer hospitalization duration (13 vs. 5 days; P < 0.001), higher total cost ($1,481,89 vs. $683,90; P < 0.001), and higher in-hospital mortality (12.61% vs. 4.11%; P < 0.001). Multivariate logistic regression identified hepatic resection-independent risk factors for POD, including non-elective hospital admission, teaching hospital, older age, male sex, depression, fluid and electrolyte disorders, coagulopathy, other neurological disorders, psychoses, and weight loss. In addition, the POD after hepatic resection has been associated with sepsis, dementia, urinary retention, gastrointestinal complications, acute renal failure, pneumonia, continuous invasive mechanical ventilation, blood transfusion, respiratory failure, and wound dehiscence / non-healing.

CONCLUSION

Although the occurrence of POD after hepatic resection is relatively low, it is beneficial to investigate factors predisposing to POD to allow optimal care management and improve the outcomes of this patient population.

ALBI score combined with FIB-4 index to predict post-hepatectomy liver failure in patients with hepatocellular carcinoma

Post-hepatectomy liver failure (PHLF) is a potentially life-threatening complication following liver resection. Hepatocellular carcinoma (HCC) often occurs in patients with chronic liver disease, which increases the risk of PHLF. This study aimed to investigate the ability of the combination of liver function and fibrosis markers (ALBI score and FIB-4 index) to predict PHLF in patients with HCC. Patients who underwent hepatectomy for HCC between August 2012 and September 2022 were considered for inclusion. Multivariable logistic regression analysis was used to identify factors associated with PHLF, and ALBI score and FIB-4 index were combined based on their regression coefficients. The performance of the combined ALBI-FIB4 score in predicting PHLF and postoperative mortality was compared with Child-Pugh score, MELD score, ALBI score, and FIB-4 index. A total of 215 patients were enrolled in this study. PHLF occurred in 35 patients (16.3%). The incidence of severe PHLF (grade B and grade C PHLF) was 9.3%. Postoperative 90-d mortality was 2.8%. ALBI score, FIB-4 index, prothrombin time, and extent of liver resection were identified as independent factors for predicting PHLF. The AUC of the ALBI-FIB4 score in predicting PHLF was 0.783(95%CI: 0.694-0.872), higher than other models. The ALBI-FIB4 score could divide patients into two risk groups based on a cut-off value of - 1.82. High-risk patients had a high incidence of PHLF of 39.1%, while PHLF just occurred in 6.6% of low-risk patients. Similarly, the AUCs of the ALBI-FIB4 score in predicting severe PHLF and postoperative 90-d mortality were also higher than other models. Preoperative ALBI-FIB4 score showed good performance in predicting PHLF and postoperative mortality in patients undergoing hepatectomy for HCC, superior to the currently commonly used liver function and fibrosis scoring systems.

Reoperation for post hepatectomy complications

BACKGROUND

Reoperation for post hepatectomy complications is associated with high rates of morbidity and mortality. We aim to describe the frequency, indications, and risk factors for reoperation after liver resection in a single centre.

METHODS

Perioperative data of 464 patients, who underwent elective hepatectomy from 2001 to 2020 at The Queen Elizabeth Hospital in South Australia, were retrospectively analysed. The frequency and indications for reoperation for post hepatectomy complications were recorded. Binary logistic regression analysis was performed to determine variables associated with reoperation.

RESULTS

A total of seven patients (1.5%) underwent reoperation post hepatectomy. The most common indications for reoperation were intra-abdominal abscess, post-operative haemorrhage, bile leak, and ischaemic bowel. Three out of the seven patients died. Patients were more likely to require reoperation if an additional major non-hepatic procedure was performed.

CONCLUSION

Reoperation post hepatectomy is associated with morbidity and mortality and is more likely to occur in patients who have undergone a non-hepatic procedure at the same time as the primary hepatic resection. Surgeons should ensure these patients are appropriately monitored and be selective about performing complex, multiple procedures. When possible, procedures should be staged.

C-Reactive Protein-Albumin Ratio (CAR): A More Promising Inflammation-Based Prognostic Marker for Patients Undergoing Curative Hepatectomy for Hepatocellular Carcinoma

Background

Systemic inflammatory response is a hallmark of cancer and plays a significant role in the development and progression of various malignant tumors. This research aimed to estimate the prognostic function of the C-reactive protein-albumin ratio (CAR) in patients undergoing hepatectomy for hepatocellular carcinoma (HCC) and compare it with other inflammation-based prognostic scores, including the neutrophil-lymphocyte ratio, platelet-lymphocyte ratio, monocyte-lymphocyte ratio, systemic immune inflammation index, prognostic index, Glasgow prognostic score, and modified Glasgow prognostic score.

Methods

Retrospective analysis was conducted on data from 1039 HCC cases who underwent curative liver resection. The prognostic performance of CAR was compared with other scores using the area under the time-dependent receiver operating characteristic (t-ROC) curve. Multivariable Cox regression analyses were performed to confirm independent predictors for disease-free survival (DFS) and overall survival (OS).

Results

The area under the t-ROC curve for CAR in the evaluation of DFS and OS was significantly greater than that of other scores and alpha-fetoprotein (AFP). Patients were stratified based on the optimal cut-off value of CAR, and the data revealed that both DFS and OS were remarkably worse in the high-CAR set compared to the low-CAR set. Multivariable Cox analysis demonstrated that CAR was an independent prognostic parameters for assessing DFS and OS. Regardless of AFP levels, all patients were subsequently divided into significantly different subgroups of DFS and OS based on CAR risk stratification. Similar results were observed when applying CAR risk stratification to other scoring systems. CAR also showed good clinical applicability in patients with different clinical features.

Conclusion

CAR is a more effective inflammation-based prognostic marker than other scores and AFP in predicting DFS as well as OS among patients with HCC after curative hepatectomy.

Comparison of survival rates as predicted by total tumor volume or tumor burden score in patients with hepatocellular carcinoma concurrent with fatty liver disease and hepatitis B virus

OBJECTIVES

To analyze prognostic value of total tumor volume (TTV) and tumor burden score (TBS) in surgically treated patients with hepatocellular carcinoma and concurrent fatty liver disease and hepatitis B virus (FLD-HCC).

METHODS

FLD-HCC patients who treated with hepatectomy from 2010 to 2018 were analyzed. Prognostic performance of TTV and TBS was determined by ROC analysis. Patients were stratified into low and high tumor burden by optimal cutoff value of 113.4 cm3 for TTV or 6.3 points for TBS. Survival rates were compared between subgroups and independent risk factors were identified by Cox regression. Correlation between TTV and TBS was evaluated.

RESULTS

This study enrolled 342 FLD-HCC patients. Survival was significantly higher among patients with low tumor burden than among those with high tumor burden (p < 0.001). High TTV and TBS were independent risk factors for poor survival of FLD-HCC (HR: 3.27 (2.17-4.93) and 3.48 (2.31-5.26), respectively, all p < 0.001). ROC analyses revealed that TTV and TBS had comparable discriminative ability in stratifying overall and recurrence-free survival of FLD-HCC. Correlation analysis revealed a strong correlation between TTV and TBS.

CONCLUSIONS

Both TTV and TBS have comparable prognostic value and high TTV/TBS predicts poor survival of patients with FLD-HCC.

Postoperative outcomes and recurrence patterns of intermediate-stage hepatocellular carcinoma dictated by the sum of tumor size and number

BACKGROUND

The selection criteria for Barcelona Clinic Liver Cancer (BCLC) intermediate-stage hepatocellular carcinoma (HCC) patients who would truly benefit from liver resection (LR) remain undefined.

AIM

To identify BCLC-B HCC patients more suitable for LR.

METHODS

We included patients undergoing curative LR for BCLC stage A or B multi-nodular HCC (MNHCC) and stratified BCLC-B patients by the sum of tumor size and number (N + S). Overall survival (OS), recurrence-free survival (RFS), recur-rence-to-death survival (RTDS), recurrence patterns, and treatments after recurrence in BCLC-B patients in each subgroup were compared with those in BCLC-A patients.

RESULTS

In total, 143 patients who underwent curative LR for MNHCC with BCLC-A (n = 25) or BCLC-B (n = 118) were retrospectively analyzed. According to the N + S, patients with BCLC-B HCC were divided into two subgroups: BCLC-B1 (N + S ≤ 10, n = 83) and BCLC-B2 (N + S > 10, n = 35). Compared with BCLC-B2 patients, those with BCLC-B1 had a better OS (5-year OS rate: 67.4% vs 33.6%; P < 0.001), which was comparable to that in BCLC-A patients (5-year OS rate: 67.4% vs 74.1%; P = 0.250), and a better RFS (median RFS: 19 mo vs 7 mo; P < 0.001), which was worse than that in BCLC-A patients (median RFS: 19 mo vs 48 mo; P = 0.022). Further analysis of patients who developed recurrence showed that both BCLC-B1 and BCLC-A patients had better RTDS (median RTDS: Not reached vs 49 mo; P = 0.599), while the RTDS in BCLC-B2 patients was worse (median RTDS: 16 mo vs not reached, P < 0.001; 16 mo vs 49 mo, P = 0.042). The recurrence patterns were similar between BCLC-B1 and BCLC-A patients, but BCLC-B2 patients had a shorter recurrence time and a higher proportion of patients had recurrence with macrovascular invasion and/or extrahepatic metastasis, both of which were independent risk factors for RTDS.

CONCLUSION

BCLC-B HCC patients undergoing hepatectomy with N + S ≤ 10 had mild recurrence patterns and excellent OS similar to those in BCLC-A MNHCC patients, and LR should be considered in these patients.

Impact of aspartate aminotransferase-to-platelet ratio index based score to assess posthepatectomy liver failure in patients with hepatocellular carcninoma

BACKGROUND

Posthepatectomy liver failure (PHLF) is a life-threatening complication following hepatic resection. The aspartate aminotransferase-to-platelet ratio index (APRI) is a non-invasive model for assessing the liver functional reserve in patients with hepatocellular carcinoma (HCC). This study aimed to establish a scoring model to stratify patients with HCC at risk for PHLF.

METHODS

This single-center retrospective study included 451 patients who underwent hepatic resection for HCC between 2004 and 2017. Preoperative factors, including non-invasive liver fibrosis markers and intraoperative factors, were evaluated. The predictive impact for PHLF was evaluated using receiver operating characteristic (ROC) curves of these factors.

RESULTS

Of 451 patients, 30 (6.7%) developed severe PHLF (grade B/C). Multivariate logistic analysis indicated that APRI, model for end-stage liver disease (MELD) score, operating time, and intraoperative blood loss were significantly associated with severe PHLF. A scoring model (over 0-4 points) was calculated using these optimal cutoff values. The area under the ROC curve of the established score for severe PHLF was 0.88, which greatly improved the predictive accuracy compared with these factors alone (p < 0.05 for all).

CONCLUSIONS

The scoring model-based APRI, MELD score, operating time, and intraoperative blood loss can predict severe PHLF in patients with HCC.

Comparative study of indocyanine green (ICG)-R15 and Albumin-Indocyanine Green Evaluation (ALICE) grading system in the prediction of posthepatectomy liver failure and postoperative mortality in patients with hepatic alveolar echinococcosis

BACKGROUND

A precise evaluation of liver reserve function in patients with hepatic alveolar echinococcosis (HAE) prior to hepatectomy could substantially increase the success rate of the operation and reduce the incidence of postoperative complications. The present study aimed to investigate the significance of the indocyanine green retention test at 15 min (ICG-R15) and the Albumin-Indocyanine Green Evaluation (ALICE) grading system in predicting severe posthepatectomy liver failure (PHLF) and postoperative mortality in HAE patients undergoing liver resection.

METHODS

A total of 105 HAE patients undergoing hepatectomy were enrolled in this study. The value of each variable in predicting severe PHLF was evaluated by univariate and multivariate logistic regression analyses. The area under the receiver operating characteristic (ROC) curves (AUC) were calculated to evaluate the predictive ability of the Child-Pugh grade, ICG-R15, and ALICE grading system. Also, patients were classified using the optimal cutoff value for ICG-R15 and different ALICE grades, and the incidence of severe PHLF and postoperative mortality were compared with the predicted values.

RESULTS

Out of the 105 HAE patients enrolled in this study, 34 patients (32.4%) developed severe PHLF. The ALICE grade and operative time were identified as independent predictors of severe PHLF. According to ROC analysis, the AUCs of the Child-Pugh grade, ICG-R15, and ALICE grade for predicting severe PHLF were 0.733 (95% confidence interval (CI), 0.637-0.814), 0.823 (95% CI, 0.737-0.891), 0.834 (95% CI, 0.749-0.900). The incidence of severe PHLF and postoperative 90-day mortality in patients with ICG-R15 > 7.2% were significantly higher than those with ICG-R15 ≤ 7.2% (P < 0.001; P = 0.008). Likewise, the incidence of severe PHLF and postoperative 90-day mortality in patients with ALICE grade 2 were higher than those with ALICE grade 1 within the Child-Pugh grade A (P < 0.001; P = 0.083).

CONCLUSION

ICG-R15 and ALICE grading system are powerful predictors of severe PHLF and postoperative mortality among HAE patients undergoing hepatectomy. Furthermore, a combination of the preoperative Child-Pugh grade and ALICE grading system may provide an even more precise and objective guidance and facilitate surgical decision-making for HAE patients.

Preoperative fibrinogen-to-albumin ratio predicts the prognosis of patients with hepatocellular carcinoma subjected to hepatectomy

Background

Systemic inflammatory response (SIR) plays a crucial role in every step of tumorigenesis and development. More recently, the fibrinogen-to-albumin ratio (FAR), an inflammation-based model, was suggested as a prognostic maker for various cancer patients. This research aimed to estimate the prognostic abilities of FAR, neutrophil–lymphocyte ratio (NLR), monocyte-lymphocyte ratio (MLR), platelet– lymphocyte ratio (PLR), and systemic immune–inflammation index (SII) in patients with hepatocellular carcinoma (HCC) subjected to curative hepatectomy.

Methods

A total of 1,502 cases who underwent hepatectomy for HCC were included. The predictive performances of FAR, NLR, MLR, PLR and SII were assessed with regards to overall survival (OS) and disease-free survival (DFS). The area under the time-dependent receiver operating characteristic curve was used to compare prognostic performances.

Results

Data revealed that FAR had higher predictive accuracy than other inflammation-based models and alpha-fetoprotein (AFP) in assessing OS and DFS. Indeed, the OS and DFS of patients with high FAR (> 8.9), differentiated by the optimal cut-off value of FAR, were remarkably reduced (p < 0.05 for OS and DFS). Multivariate Cox regression analyses identified that AFP, FAR, clinically significant portal hypertension, tumor size, Barcelona Clinical Liver Cancer staging system, major resection and blood loss were independent indicators for predicting OS and DFS. Furthermore, these patients could be classified according to their FAR into significantly different subgroups, regardless of AFP levels (p < 0.05 for DFS and OS). Similar results were obtained in other inflammation-based prognostic models.

Conclusions

Compared with NLR, MLR, PLR, SII and AFP, FAR showed significant advantages in predicting survival of HCC patients subjected to liver resection.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12876-022-02328-4.

Outcomes of Liver Resection for Metabolic Dysfunction-Associated Fatty Liver Disease or Chronic Hepatitis B-Related HCC

AIMS

This study aims to determine differences in severity of background liver disease at hepatocellular carcinoma (HCC) diagnosis and long-term survival outcomes among patients undergoing liver resection for HCC in the background of metabolic dysfunction-associated fatty liver disease (MAFLD) compared to chronic hepatitis B (CHB) alone or concurrent CHB (CHB/MAFLD).

METHODS

Patient demographics and comorbidities, clinicopathologic data, perioperative and long-term outcomes among patients who underwent liver resection for HCC were reviewed. Overall and recurrence-free survival were calculated with the Kaplan-Meier method, with the values compared using the log-rank test.

RESULTS

From January 2014 to December 2018, 1325 patients underwent potential curative liver resection of HCC; 67 (5.0%), 176 (13.3%), and 1082 (81.7%) patients had MAFLD alone, CHB concurrent with MAFLD, and CHB alone, respectively. At HCC diagnosis, fewer MAFLD patients had cirrhosis, alpha fetoprotein concentration ≥ 400 ng/mL, tumor size ≥ 5 cm, mulinodular, microvascular invasion, receiving major hepatectomy, and receiving adjuvant transarterial chemoembolization. After a median follow-up of 47 months after liver resection, MAFLD (or MAFLD plus CHB/MAFLD) patients had significantly higher overall and recurrence-free survival than CHB patients before or after propensity score analysis (all P<0.05).

CONCLUSION

Patients with HCC in the setting of MAFLD have less-severe background liver disease at HCC diagnosis and better long-term survival after curative liver resection compared to counterparts with CHB/MAFLD or CHB.

Development and Validation of a Nomogram to Preoperatively Estimate Post-hepatectomy Liver Dysfunction Risk and Long-term Survival in Patients With Hepatocellular Carcinoma

OBJECTIVE

To develop a nomogram to estimate the risk of SPLD (International Study Group of Liver Surgery definition grade B or C) and long-term survival in patients with HCC before hepatectomy.

BACKGROUND

SPLD is the leading cause of post-hepatectomy mortality. The decision to refer an HCC patient for hepatectomy is mainly based on the survival benefit and SPLD risk. Prediction of SPLD risk before hepatectomy is of great significance.

METHODS

A total of 2071 consecutive patients undergoing hepatectomy for HCC were recruited and randomly divided into the development cohort (n = 1036) and internal validation cohort (n = 1035). Five hundred ninety patients from another center were enrolled as the external validation cohort. A nomogram was developed based on independent preoperative predictors of SPLD determined in multivariable logistic regression analysis.

RESULTS

The SPLD incidences in the development, internal, and external validation cohorts were 10.1%, 9.5%, and 8.6%, respectively. Multivariable analysis identified total bilirubin, albumin, gamma-glutamyl transpeptidase, prothrombin time, clinically significant portal hypertension, and major resection as independent predictors for SPLD. Incorporating these variables, the nomogram showed good concordance statistics of 0.883, 0.851, and 0.856, respectively in predicting SPLD in the 3 cohorts. Its predictive performance in SPLD, 90-day mortality, and overall survival (OS) outperformed Child-Pugh, model for end-stage liver disease, albumin-bilirubin, and European Association for the Study of the Liver recommended algorithm. With a nomogram score of 137, patients were stratified into low and high risk of SPLD. High-risk patients also had decreased OS.

CONCLUSIONS

The nomogram showed good performance in predicting both SPLD and OS. It could help surgeons select suitable HCC patients for hepatectomy.

Preoperative transarterial chemoembolization for barcelona clinic liver cancer stage A/B hepatocellular carcinoma beyond the milan criteria: a propensity score matching analysis

BACKGROUND

Debate continues about the benefits of preoperative transarterial chemoembolization (TACE) for treatment of hepatocellular carcinoma (HCC). This study aimed to assess the impact of preoperative TACE on long-term outcomes after curative resection for HCC beyond the Milan criteria.

METHODS

Patients who underwent HCC resection exceeding the Milan criteria without macrovascular invasion between 2015 and 2018 were identified (n = 393). Short- and long-term outcomes were compared between patients who underwent preoperative TACE and patients who did not before and after propensity score matching (PSM). Factors associated with recurrence after resection were analyzed.

RESULTS

100 patients (25.4%) underwent preoperative TACE. Recurrence-free survival (RFS) and overall survival (OS) were comparable with patients who underwent primary liver resection. 7 patients (7.0%) achieved total necrosis with better RFS compared with patients who had an incomplete response to TACE (P=0.041). PSM created 73 matched patient pairs. In the PSM cohort, preoperative TACE improved RFS (P=0.002) and OS (P=0.003). The maximum preoperatively diagnosed tumor diameter (HR 3.230, 95% CI: 1.116-9.353; P=0.031) and hepatitis B infection (HR 2.905, 95%CI: 1.281-6.589; P=0.011) were independently associated with favorable RFS after HCC resection.

CONCLUSION

Preoperative TACE made no significant difference to perioperative complications and was correlated with an improved prognosis after surgical resection for patients with HCC beyond the Milan criteria.

Tumor size may influence the prognosis of solitary hepatocellular carcinoma patients with cirrhosis and without macrovascular invasion after hepatectomy

Hepatocellular carcinoma (HCC) is usually associated with varying degrees of cirrhosis. Among cirrhotic patients with solitary HCC in the absence of macro-vascular invasion, whether tumor size drives prognosis or not after hepatectomy remains unknown. This study aimed to investigate the prognostic impact of tumor size on long-term outcomes after hepatectomy for solitary HCC patients with cirrhosis and without macrovascular invasion. A total of 813 cirrhotic patients who underwent curative hepatectomy for solitary HCC and without macrovascular invasion between 2001 and 2014 were retrospectively studied. We set 5 cm as the tumor cut-off value. Propensity score matching (PSM) was performed to minimize the influence of potential confounders including cirrhotic severity that was histologically assessed according to the Laennec staging system. Recurrence-free survival (RFS) and overall survival (OS) were compared between the two groups before and after PSM. Overall, 464 patients had tumor size ≤ 5 cm, and 349 had tumor size > 5 cm. The 5-year RFS and OS rates were 38.3% and 61.5% in the  ≤ 5 cm group, compared with 25.1% and 59.9% in the > 5 cm group. Long-term survival outcomes were significantly worse as tumor size increased. Multivariate analysis indicated that tumor size > 5 cm was an independent risk factor for tumor recurrence and long-term survival. These results were further confirmed in the PSM cohort of 235 pairs of patients. In cirrhotic patients with solitary HCC and without macrovascular invasion, tumor size may significantly affect the prognosis after curative hepatectomy.

Liver Collagen Contents Are Closely Associated with the Severity of Cirrhosis and Posthepatectomy Liver Failure in Patients with Hepatocellular Carcinoma and Child-Pugh Grade A Liver Function

BACKGROUND

Hepatocellular carcinoma (HCC) is usually accompanied by different severities of cirrhosis, which is a risk factor for posthepatectomy liver failure (PHLF). Collagen proportional area (CPA) measurements can quantitatively determine the collagen contents of liver tissue. This study explored the impact of CPA on PHLF, and further investigated the correlation between CPA and a non-invasive method, namely cirrhotic severity scoring (CSS), previously proposed by our team.

METHODS

A total of 224 HCC patients with Child-Pugh grade A liver function undergoing hepatectomy between 2017 and 2019 were retrospectively studied. Quantitative digital image analysis of resected liver tissues was used for the CPA measurement. Risk factors for PHLF were subjected to univariate and multivariate analyses, and the correlation between CPA and CSS was analyzed.

RESULTS

Overall, 28 (12.5%) patients experienced PHLF. Patients with PHLF had higher CPA values than those without PHLF (p < 0.001). Multivariate analysis showed CPA and extent of hepatectomy to be independent risk factors for PHLF. CPA values were divided into four stages based on their quartiles (C1: < 6.6%; C2: 6.6-10.7%; C3: 10.7-18.0%; C4: ≥ 18.0%). The incidence of PHLF increased with increasing CPA stages (p < 0.001). Furthermore, CSS was significantly correlated with CPA (r = 0.720; p < 0.001). The incidence of PHLF also increased with increasing severity of cirrhosis evaluated by CSS (p < 0.001).

CONCLUSIONS

In HCC patients with Child-Pugh grade A liver function, cirrhosis could be staged by liver collagen contents, which significantly influenced PHLF. Furthermore, CSS was useful in the preoperative evaluation of cirrhotic severity.

Predictors of complications after liver surgery: a systematic review of the literature

BACKGROUND

Numerous potential predictors of adverse outcomes have been reported but their performance and utilization in practice seem heterogenous. This study aimed to systematically review the literature on the role and value of predictors of complications after hepatectomy.

METHODS

A systematic review following the PRISMA guidelines was performed. Studies on liver transplant were excluded. Only studies assessing overall or major complications were included.

RESULTS

A total of 10'965 abstracts were screened. After application of exclusion criteria, 72 articles including 68'480 patients were included. A total of 72 markers with 48 pre-, 9 intra- and 15 postoperative factors were identified as predictors of complications. Preoperative and intraoperative predictive markers retrieved several times with the highest odds ratios (OR) were ASA score (OR range: 1.3-7.5, significant in 8 studies) and intraoperative need for red blood cell transfusion (OR range: 1.2-17.1, significant in 24 studies), respectively.

CONCLUSION

Numerous markers have been described to predict the complication risk after hepatectomy. Because of their intrinsic characteristics, most markers such as ASA score and need for red blood cell transfusion are of limited clinical interest. There is a clear need to identify new biomarkers and to develop scores that could easily be implemented in clinical practice.

Development and Validation of a Nomogram Based on Noninvasive Liver Reserve and Fibrosis (PALBI and FIB-4) Model to Predict Posthepatectomy Liver Failure Grade B-C in Patients with Hepatocellular Carcinoma

Hepatectomy is currently one of the most effective treatments for hepatocellular carcinoma (HCC). However, postoperative liver failure (PHLF) is a serious complication and the leading cause of mortality in patients with HCC after hepatectomy. This study attempted to develop a novel nomogram based on noninvasive liver reserve and fibrosis models, platelet-albumin-bilirubin grade (PALBI) and fibrosis-4 index (FIB-4), able to predict PHLF grade B-C. This was a single-centre retrospective study of 574 patients with HCC undergoing hepatectomy between 2014 and 2018. The independent risk factors of PHLF were screened using univariate and multivariate logistic regression analyses. Multivariate logistic regression was performed using the training set, and the nomogram was developed and visualised. The utility of the model was evaluated in a validation set using the receiver operating characteristic (ROC) curve. A total of 574 HCC patients were included (383 in the training set and 191 for the validation set) and included PHLF grade B-C complications of 14.8, 15.4, and 13.6%, respectively. Overall, cirrhosis (P < 0.026, OR = 2.296, 95% confidence interval (CI) 1.1.02-4.786), major hepatectomy (P=0.031, OR = 2.211, 95% CI 1.077-4.542), ascites (P=0.014, OR = 3.588, 95% 1.299-9.913), intraoperative blood loss (P < 0.001, OR = 4.683, 95% CI 2.281-9.616), PALBI score >-2.53 (, OR = 3.609, 95% CI 1.486-8.764), and FIB-4 score ≥1.45 (P < 0.001, OR = 5.267, 95% CI 2.077-13.351) were identified as independent risk factors associated with PHLF grade B-C in the training set. The areas under the ROC curves for the nomogram model in predicting PHLF grade B-C were significant for both the training and validation sets (0.832 vs 0.803). The proposed nomogram predicted PHLF grade B-C among patients with HCC with a better prognostic accuracy than other currently available fibrosis and noninvasive liver reserve models.

Effectiveness of Albumin-bilirubin Score as a Predictor of Post-hepatectomy Liver Failure in Patients with Hepatocellular Carcinoma

Backgrounds/Aims

Post-hepatectomy liver failure (PHLF) is a major concern for patients with hepatocellular carcinoma (HCC) who have undergone liver resection. The albumin-bilirubin (ALBI) score is a novel model for assessing liver function. We aimed to investigate the effectiveness of the ALBI score as a predictor of PHLF in HCC patients who have undergone hepatectomy in South Korea.

Methods

Between January 2014 and November 2018, HCC patients who underwent hepatectomy and indocyanine retention rate at 15 min (ICG-R15) test were enrolled in this study.

Results

A total of 101 patients diagnosed with HCC underwent hepatectomy. Thirty-two patients (31.7%) experienced PHLF. The ALBI score (OR 2.83; 95% CI 1.22-6.55; p=0.015), ICG-R15 (OR 1.07; 95% CI 1.02-1.12; p=0.007) and ALBI grade (OR 2,86; 95% CI 1.08-7.58; p=0.035) were identified as independent predictors of PHLF by multivariable analysis. The area under the receiver operating characteristic curve of the ALBI score and ICG-R15 were 0.676 (95% CI 0.566-0.785) and 0.632 (95% CI 0.513-0.752), respectively. The optimal cutoff value of the ALBI score in predicting PHLF was -2.62, with a sensitivity of 75.0% and a specificity of 56.5%.

Conclusions

The ALBI score is an effective predictor of PHLF in patients with HCC, and its predictive ability is comparable to that of ICG-R15.

Artificial neural network model to predict post-hepatectomy early recurrence of hepatocellular carcinoma without macroscopic vascular invasion

BACKGROUND

The accurate prediction of post-hepatectomy early recurrence (PHER) of hepatocellular carcinoma (HCC) is vital in determining postoperative adjuvant treatment and monitoring. This study aimed to develop and validate an artificial neural network (ANN) model to predict PHER in HCC patients without macroscopic vascular invasion.

METHODS

Nine hundred and three patients who underwent curative liver resection for HCC participated in this study. They were randomly divided into derivation (n = 679) and validation (n = 224) cohorts. The ANN model was developed in the derivation cohort and subsequently verified in the validation cohort.

RESULTS

PHER morbidity in the derivation and validation cohorts was 34.8 and 39.2%, respectively. A multivariable analysis revealed that hepatitis B virus deoxyribonucleic acid load, γ-glutamyl transpeptidase level, α-fetoprotein level, tumor size, tumor differentiation, microvascular invasion, satellite nodules, and blood loss were significantly associated with PHER. These factors were incorporated into an ANN model, which displayed greater discriminatory abilities than a Cox's proportional hazards model, preexisting recurrence models, and commonly used staging systems for predicting PHER. The recurrence-free survival curves were significantly different between patients that had been stratified into two risk groups.

CONCLUSION

When compared to other models and staging systems, the ANN model has a significant advantage in predicting PHER for HCC patients without macroscopic vascular invasion.

Combining Aspartate Aminotransferase-to-Platelet Ratio Index with Future Liver Remnant to Assess Preoperative Hepatic Functional Reserve in Patients with Hepatocellular Carcinoma

BACKGROUND

Accurate preoperative assessment of hepatic functional reserve is essential for conducting a safe hepatectomy. In recent years, aspartate aminotransferase-to-platelet ratio index (APRI) has been used as a noninvasive model for assessing fibrosis stage, hepatic functional reserve, and prognosis after hepatectomy with a high level of accuracy. The purpose of this research was to evaluate the clinical value of combining APRI with standardized future liver remnant (sFLR) for predicting severe post-hepatectomy liver failure (PHLF) in patients with hepatocellular carcinoma (HCC).

METHODS

Six hundred thirty-seven HCC patients who had undergone hepatectomy were enrolled in this study. The performance of the Child-Pugh (CP) grade, model for end-stage liver disease (MELD), APRI, sFLR, and APRI-sFLR in predicting severe PHLF was assessed using the area under the ROC curve (AUC).

RESULTS

Severe PHLF was found to have developed in 101 (15.9%) patients. Multivariate logistic analyses identified that prealbumin, cirrhosis, APRI score, sFLR, and major resection were significantly associated with severe PHLF. The AUC values of the CP, MELD, APRI, and sFLR were 0.626, 0.604, 0.725, and 0.787, respectively, indicating that the APRI and sFLR showed significantly greater discriminatory abilities than CP and MELD (P < 0.05 for all). After APRI was combined with sFLR, the AUC value of APRI-sFLR for severe PHLF was 0.816, which greatly improved the prediction accuracy, compared with APRI or sFLR alone (P < 0.05 for all). Stratified analysis using the status of cirrhosis and extent of resection yielded similar results. Moreover, the incidence and grade of PHLF were significantly different among the three risk groups.

CONCLUSION

The combination of APRI and sFLR can be considered to be a predictive factor with increased accuracy for severe PHLF in HCC patients, compared with CP grade, MELD, APRI, or sFLR alone.

Development and Validation of a Prognostic Nomogram to Predict the Long-Time Prognosis in Non-B, Non-C Hepatocellular Carcinoma

PURPOSE

To develop and validate a nomogram for individualized prediction of the long-term prognosis of patients with non-B, non-C hepatocellular carcinoma (NBNC-HCC) who underwent hepatectomy.

MATERIALS AND METHODS

Five hundred ninety-four patients who met the criteria were included in the research and randomly categorized into the training or validation cohort. The nomogram was constructed on the basis of the independent risk variables that were acquired via multivariate Cox proportional hazard regression analysis. Several complementary methods included the Harrell c-index, time-dependent areas under the receiver operating characteristic curve (tdAUC), and calibration plot, and the Kaplan-Meier curve with Log rank test were used to test predictive performance of the model. The clinical utility of the model was tested by the decision cure analysis (DCA).

RESULTS

Tumor diameter, tumor number, elevated serum gamma-glutamyl transpeptidase (GGT) level, microvascular invasion (MVI), and macrovascular invasion were independent risk factors of prognosis of NBNC-HCC. C-indexes of the nomogram were 0.702 (95% confidence interval [CI], 0.662-0.741) in the training cohort and 0.700 (95% CI, 0.643-0.758) in the validation cohort, and median tdAUC values of the nomogram were 0.743 (range, 0.736-0.775) in the training cohort and 0.751 (range, 0.686-0.793) in the validation cohort, which were both higher than those in the conventionally used Barcelona Clinic Liver Cancer staging system, American Joint Committee on Cancer, and eighth edition and the model of Zhang et al. The calibration plot depicted a good consistency between prediction of the model and observed outcome. The Kaplan-Meier curve analysis showed that the model was able to separate patients into three distinct risk subgroups. The DCA analysis also demonstrated that the nomogram was clinically useful.

CONCLUSION

We developed and validated a nomogram that was accurate and clinically useful in patients with NBNC-HCC who underwent hepatectomy.

Effectiveness comparison of indocyanine green retention test with the cirrhotic severity scoring in evaluating the pathological severity of liver cirrhosis in patients with hepatocellular carcinoma and Child-Pugh grade A liver function

BACKGROUND

Evaluating cirrhotic severity is essential for individualizing surgical modalities for patients with hepatocellular carcinoma (HCC). Our previous study proposed a non-invasive method named cirrhotic severity scoring (CSS) to stage liver cirrhosis. Indocyanine green retention rate at 15 min (ICG-R15) has been widely used for the preoperative evaluation of hepatic functional reserve; however, whether ICG-R15 is well correlated with cirrhotic severity, and especially whether comparable with CSS in predicting cirrhotic severity in HCC patients with Child-Pugh grade A liver function remains unknown.

METHODS

Overall, 510 HCC patients with Child-Pugh grade A liver function undergoing hepatectomy between January 2011 and December 2014 were retrospectively studied. Cirrhotic severity was pathologically assessed using the Laennec staging system. The correlations between ICG-R15, CSS, and cirrhotic severity were analyzed. Furthermore, the performance of ICG-R15 and CSS in predicting posthepatectomy liver failure (PHLF) and 90-day mortality was compared.

RESULTS

Patients with no, mild, moderate, and severe cirrhosis accounted for 15.9%, 29.2%, 35.9%, and 19.0%, respectively, in the entire cohort. ICG-R15 was found to be less than 10% in 100%, 93.3%, 86.3%, and 70.1% of the patients with no, mild, moderate, and severe cirrhosis, respectively. There was only a weak correlation between ICG-R15 and the pathological severity of liver cirrhosis (r = 0.325; P < 0.001). However, CSS showed a strong correlation with the pathological severity of liver cirrhosis (r = 0.788; P < 0.001). For those with ICG-R15 in the normal range, the accuracy of CSS in diagnosing no/mild, moderate, and severe cirrhosis was 89.1%, 72.8%, and 72.1%, respectively. In addition, CSS was superior to ICG-R15 in predicting PHLF and 90-day mortality.

CONCLUSIONS

CSS was more useful than ICG-R15 in the preoperative assessment of cirrhotic severity in HCC patients with Child-Pugh grade A liver function. More studies are needed to further validate CSS in patients with different Child-Pugh grades.

Comparison of FIB-4 Index and Child-Pugh Score in Predicting the Outcome of Hepatic Resection for Hepatocellular Carcinoma

BACKGROUND AND AIMS

The Child-Pugh (CP) score is a widely used method to assess liver function and predict postoperative outcomes in patients with hepatocellular carcinoma (HCC). Recently, the fibrosis index (FIB-4) has been demonstrated to be closely associated with liver fibrosis and cirrhosis. This study aimed to compare the capability of FIB-4 index with CP score in predicting the outcomes for HCC patients after hepatectomy.

METHODS

A total of 495 HCC patients who underwent hepatectomy were enrolled. The performance of the FIB-4 index in predicting postoperative liver failure (PHLF) and overall survival was compared with that of the CP score.

RESULTS

Of them, 9.3% (46/495) patients developed PHLF. The area under the receiver operating characteristic (ROC) curve of the FIB-4 index for predicting PHLF was greater than that of the CP score (0.744 versus 0.621; P = 0.044). The optimal cutoff value of the FIB-4 index for predicting PHLF was 4.16. Multivariable analyses revealed that the FIB-4 index was an independent predictor of PHLF regardless of the hepatectomy subgroups, but the CP grade was only a significant predictor of PHLF in the minor hepatectomy subgroup. The FIB-4 index (4.16) stratified patients into two distinct overall survival cohorts (P = 0.006). The FIB-4 index also classified patients with the Barcelona Clinical Liver Cancer (BCLC) stages 0 and A into two distinct overall survival cohorts (P = 0.001 and P = 0.034, respectively).

CONCLUSION

The FIB-4 index may be a better predictor of PHLF and overall survival in HCC patients with hepatectomy than CP score.

Nomograms to predict the long-time prognosis in patients with alpha-fetoprotein negative hepatocellular carcinoma following radical resection

Background

To develop and validate nomograms that can be used to predict outcomes in individuals suffering alpha‐fetoprotein (AFP) negative hepatocellular carcinoma (HCC) after radical resection.

Methods

A total of 509 AFP‐negative HCC patients who received hepatectomy between January 2009 and March 2013 in our center were randomized into training and validation cohorts. Nomograms for both overall and recurrence‐free survival (OS and RFS, respectively) were established based on the predictors in the training cohort. Nomograms performance and discriminative power were assessed with concordance index (C‐index) values and decision curve analyses (DCA). The results were validated in the validation cohort.

Results

Alkaline phosphatase, liver cirrhosis, tumor size, satellite lesions, microvascular invasion, and Edmondson‐Steiner grade were significantly linked to OS and RFS. Sex and tumor number were additional predictors for RFS. The OS nomogram had a C‐index value of 0.742, which was better than that for the AJCC eighth edition (0.632), BCLC system (0.553), and JIS score (0.557) (all P < .001). The RFS nomogram C‐index was 0.669, which was also superior to that of the AJCC eighth (0.608), BCLC stage (0.554), JIS score (0.551), and model of Gan et al (0.636) (P < .05 for all). Calibration curves indicated a good agreement between observed actual outcomes and predicted values. Kaplan‐Meier curves and DCA indicated that nomograms were powerful in discrimination and clinical usefulness. These results were supported by the validation cohort.

Conclusions

These nomograms presented more accurate prognostic prediction in patients with AFP‐negative HCC after hepatectomy.

Combination Of ALBI And APRI To Predict Post-Hepatectomy Liver Failure After Liver Resection For HBV-Related HCC Patients

Purpose

Post-hepatectomy liver failure (PHLF) is a severe complication in hepatocellular carcinoma (HCC) patients who have undergone hepatectomy. This research aimed to investigate the combination of albumin–bilirubin (ALBI) score and aspartate aminotransferase-platelet ratio index (APRI) as a novel approach in predicting PHLF risk in hepatitis B virus (HBV)-related HCC patients.

Patients and methods

HBV-related HCC patients who underwent hepatectomy from January 2006 to October 2013 were enrolled in this study. A novel model was constructed using a combination of ALBI and APRI scores to predict PHLF risk, and the prognostic value of the model was evaluated and compared with Child-Pugh (C-P) grade, ALBI score and APRI score.

Results

A total of 1,055 HCC patients were retrospectively studied, which included 151 experienced PHLF. Univariable and multivariate analyses showed that the ALBI and APRI scores were independent predictors of PHLF. The area under the ROC curve (AUC) of the ALBI score, APRI score, and C-P grade was 0.717, 0.720, and 0.602, respectively, with AUC (ALBI) > AUC (C-P) (P <0.001) and AUC (APRI) > AUC (C-P) (P <0.001). After ALBI was associated with APRI, the AUC (ALBI-APRI) was 0.766, and AUC (ALBI-APRI) > AUC (ALBI) (P <0.001), AUC (ALBI-APRI) > AUC (APRI) (P =0.047). Our results indicated that ALBI and APRI scores had higher discriminatory abilities than C-P grade in predicting the risk of PHLF, and the ALBI-APRI model could enhance the capability of predicting PHLF compared to ALBI or APRI alone.

Conclusion

ALBI-APRI score is a novel and effective predictive model of PHLF for HBV-related HCC patients, and its accuracy in predicting the risk of PHLF is better than that of C-P, ALBI and APRI scores.

Postoperative adjuvant transcatheter arterial chemoembolization should be considered selectively in patients who have hepatocellular carcinoma with microvascular invasion

BACKGROUND

Microvascular invasion (MVI) is a powerful predictor of recurrence in patients who undergo liver resection for hepatocellular carcinoma (HCC). This study aimed to evaluate the efficacy of postoperative adjuvant transarterial chemoembolization (PA-TACE) in HCC patients with MVI, and further select potential patients benefitting from PA-TACE.

METHODS

Patients who had HCC with MVI and underwent liver resection between September 2004 and December 2015 were identified for further analysis. Overall survival (OS) and disease-free survival (DFS) were compared between patients treated with and without PA-TACE. Propensity score matching analysis was used to minimize inter-group differences.

RESULTS

A total of 176 patients with HCC and MVI were included. In both the entire and propensity-matched cohorts, OS and DFS were higher in PA-TACE group than non-TACE group (all P < 0.05). In subgroup analyses, PA-TACE showed efficacy in improving OS and DFS in HCC patients at early stage beyond Milan criteria and intermediate stage, but not in patients within Milan criteria. Multivariable analysis identified PA-TACE as a significantly favorable factor of OS and DFS for patients beyond Milan criteria, but not for those within Milan criteria.

CONCLUSION

PA-TACE could be beneficial for patients who have HCC with MVI beyond Milan criteria, but not for those within Milan criteria.

Short-term outcomes after major hepatic resection in patients with cirrhosis: a 75-case unicentric western experience

BACKGROUND

The benefit of performing major hepatic resection (MHR) for hepatocellular carcinoma (HCC) in patients with cirrhosis remains controversial because of its high risk of posthepatectomy liver failure (PHLF). This study was conducted to assess the risk of MHR for HCC in patients with cirrhosis.

METHODS

Patients with Child-Pugh A or B cirrhosis and HCC who underwent MHR from January 2000 to June 2014 were retrospectively identified. Risk factors for postoperative morbidity and mortality using univariate and multivariate analyses were evaluated.

RESULTS

Seventy patients with Child-Pugh A (93%) and 5 (7%) with Child-Pugh B cirrhosis underwent MHR for HCC. Thirteen (17%) had Barcelona Clinic Liver Cancer (BCLC) stage A, 39 (50%) had BCLC B, and 23 (32%) had BCLC C disease. A perioperative blood transfusion was performed in 18 patients (24%). Ninety-day postoperative mortality was 9% (n=7). Major complications occurred in 16 patients (21%), including PHLF in 9 patients (12%). A multivariate analysis showed that perioperative blood transfusion was the main independent factor associated with mortality (OR= 6.5) and major morbidity (OR=10).

CONCLUSION

In selected patients with HCC and cirrhosis, MHR is feasible and has acceptable mortality, but careful perioperative management and limiting blood loss are required.

Preoperative aspartate aminotransferase-to-platelet-ratio index as a predictor of posthepatectomy liver failure for resectable hepatocellular carcinoma

Purpose

This study aimed to investigate the efficacy of preoperative aspartate aminotransferase-to-platelet-ratio index (APRI) score to predict the risk of posthepatectomy liver failure (PHLF) in patients with hepatocellular carcinoma (HCC) after liver resection, and to compare the discriminatory performance of the APRI with the Child–Pugh score, model for end-stage liver disease (MELD) score, and albumin–bilirubin (ALBI) score.

Patients and methods

A total of 1,044 consecutive patients with HCC who underwent liver resection were enrolled and studied. Univariate and multivariate analyses were performed to investigate risk factors associated with PHLF. Predictive discrimination of Child–Pugh, MELD, ALBI, and APRI scores for predicting PHLF were assessed according to area under the ROC curve. The cutoff value of the APRI score for predicting PHLF was determined by ROC analysis. APRI scores were stratified by dichotomy to analyze correlations with incidence and grade of PHLF.

Results

PHLF occurred in 213 (20.4%) patients. Univariate and multivariate analyses revealed that Child–Pugh, MELD, ALBI, and APRI scores were significantly associated with PHLF. Area under the ROC analysis revealed that the APRI score for predicting PHLF was significantly more accurate than Child–Pugh, MELD, or ALBI scores. With an optimal cutoff value of 0.55, the sensitivity and specificity of the APRI score for predicting PHLF were 72.2% and 68.0%, respectively, and the incidence and grade of PHLF in patients with high risk (APRI score >0.55) was significantly higher than in the low-risk cohort (APRI score <0.55).

Conclusion

The APRI score predicted PHLF in patients with HCC undergoing liver resection more accurately than Child–Pugh, MELD, or ALBI scores.

A modified staging of early and intermediate hepatocellular carcinoma based on single tumour >7 cm and multiple tumours beyond up-to-seven criteria

BACKGROUND

The Barcelona Clinic Liver Cancer (BCLC) staging system is the most widely used staging system for hepatocellular carcinoma (HCC). However, the classifications of early (BCLC-A) and intermediate (BCLC-B) stage HCC remain controversial.

AIM

To refine the staging of BCLC-A and -B.

METHODS

A total of 986 patients with HCC undergoing liver resection from two institutions formed the training cohort, and 694 from another institution were the validation cohort. Time-dependent receiver operating characteristic (ROC) curve analysis was performed to evaluate the performance of tumour size in predicting overall survival (OS), and determined the optimised cut-off. Discriminatory performance was evaluated using Harrell's concordance index (C-index).

RESULTS

Patients with multiple tumours exceeding Milan criteria but within up-to-seven criteria had similar OS and disease-free survival (DFS) to those with multiple tumours meeting Milan criteria, and were assigned to the modified BCLC-A stage. The area under the ROC curve of tumour size for predicting OS was 0.778, and the diameter of 7 cm was the optimal cut-off to identify patients with single tumours who had higher OS than BCLC-B stage patients. Due to the similar OS, patients with single HCCs >7 cm were assigned to the modified BCLC-B stage. The C-indexes of the modified BCLC classification for OS and DFS were higher compared to the original version. The findings were supported by the validation cohort.

CONCLUSIONS

The modified staging of BCLC-A and -B, based on single tumour >7 cm and multiple tumours beyond up-to-seven criteria, could be more accurate to predict the prognosis of HCC patients. Liver resection could benefit patients with resectable multifocal HCCs beyond the Milan criteria.

Effectiveness of the albumin-bilirubin score as a prognostic factor for early recurrence after curative hepatic resection for hepatocellular carcinoma

Backgrounds/Aims

The albumin-bilirubin (ALBI) score has been validated as a predictor of disease-free survival and overall survival in hepatocellular carcinoma (HCC). The purpose of this study was to assess the ALBI score as a risk factor for early recurrence (ER) after curative liver resection in HCC.

Methods

Patients who underwent liver resection with curative intent for HCC without previous treatment between January 2004 and December 2014 were included in this retrospective study. The utility of the ALBI score in predicting ER and late recurrence (LR) was evaluated.

Results

A total of 465 HCC patients were enrolled; multivariate analysis identified ALBI grade ≥2 (p=0.003) as a risk factor for ER, in addition to hepatitis B virus surface antigen (HBsAg)-positive status (p<0.001), tumor size ≥3.5cm (p≤0.001), lymph-vascular invasion (p=0.001), and the presence of satellite lesions (p=0.009). In subgroup analysis for ALBI grade 1, Model for End-stage Liver Disease score >9 (p=0.046), HBsAg positive status (p=0.004), tumor size ≥3.5 cm (p<0.001), lymph-vascular invasion (p=0.001), presence of satellite lesions (p=0.002), and poor tumor differentiation (p=0.007) were independent risk factors for ER; however, in subgroup analysis for ALBI grade 2, no significant associations with ER were found. Kaplan-Meier curve analysis showed that long-term survival in HCC with ER was significantly shorter than in patients with LR.

Conclusions

The ALBI score was a preoperative risk factor for ER and may be useful in determining appropriate management according to liver function when recurrence develops.

Intraoperative Blood Transfusion and Postoperative Morbidity Following Liver Resection

BACKGROUND Blood transfusion is common during liver resection (LR). The objective of the present study was to investigate the effects of intraoperative transfusion of different blood components on post-LR morbidity. MATERIAL AND METHODS We included 610 patients undergoing LR and grouped them according to intraoperative transfusion of different blood components: packed red blood cells only (PRBC, n=81); frozen fresh plasma, platelets, and cryoprecipitate (FPC, n=38); transfusion only with PRBC + FPC transfusion (n=244); and no blood transfusion (n=247). Propensity score matching (PSM) analysis was used to mitigate selection bias in comparisons. RESULTS The overall blood transfusion rate was 59.5%. In comparison with the no blood transfusion group, PRBC-only and PRBC + FPC transfusion were more common in patients with lower preoperative hemoglobin, worse liver function, larger tumor size, and undergoing a major LR, and thus were associated with increased postoperative morbidity. In contrast, FPC-only transfusion was more frequent in patients with a liver function of Child-Pugh B and lower preoperative albumin vs. the no blood transfusion group. In the propensity model, transfusion of PRBC (PRBC-only and PRBC+FPC) and FPC (FPC-only and FPC+PRBC) were significantly associated with increased postoperative complications vs. the no blood transfusion group (OR and 95% CI, 1.9 [1.2-2.7], p=0.002; OR and 95% CI, 1.6 [1.0-2.4], p=0.029). In contrast, intraoperative PRBC-only or FPC-only transfusion showed no significant adverse effects on postoperative morbidity. CONCLUSIONS Allogenic transfusion of PRBC and FPC blood components was associated with increased postoperative morbidity after liver surgery. Different blood components should be used only when absolutely necessary.

Comparison of the ability of Child-Pugh score, MELD score, and ICG-R15 to assess preoperative hepatic functional reserve in patients with hepatocellular carcinoma

BACKGROUND

Assessing hepatic functional reserve before hepatectomy is beneficial to reduce the incidence of posthepatectomy liver failure (PHLF). This study aimed to compare the ability of the Child-Pugh score, model for end-stage liver disease (MELD) score, and retention test at 15 minutes (indocyanine green [ICG]-R15) to assess hepatic functional reserve.

METHODS

A total of 185 patients with hepatocellular carcinoma (HCC) undergoing hepatectomy were enrolled in this study. The ability of Child-Pugh score, MELD score, and ICG-R15 predicting severe PHLF were compared.

RESULTS

A total of 23 patients (12.4%) developed severe PHLF. Multivariate analyses identified that platelet count, ICG-R15, clinically significant portal hypertension, and major resection were independent factors for predicting severe PHLF. The area under the receiver operating characteristic curve of ICG-R15 for predicting severe PHLF was higher than that of both Child-Pugh score and MELD score. With an optimal cutoff value of 7.1%, the sensitivity and specificity of ICG-R15 for predicting severe PHLF were 52.2% and 89.5%, respectively. Both the incidence of severe PHLF and mortality in patients with ICG-R15 >7.1% were significantly higher than the figures for patients with ICG-R15 ≤7.1%.

CONCLUSION

ICG-R15 is more accurate than the Child-Pugh score and MELD score in predicting hepatic functional reserve before hepatectomy.

Postoperative liver volume was accurately predicted by a medical image three dimensional visualization system in hepatectomy for liver cancer

BACKGROUND

Liver cancer is the second most common cause of cancer death worldwide. The hepatectomy is the most effective and the only potentially curative treatment for patients with resectable neoplasm. Precisely preoperative assessment of remnant liver volume is essential in preventing postoperative liver failure. The aim of our study is to report our experience of using a medical image three dimensional (3D) visualization system (MI-3DVS), which was developed by our team, in assisting hepatectomy for patients with liver cancer.

METHODS

Between January 2010 and June 2016, 69 patients with liver cancer underwent hepatic resection based on the MI-3DVS were enrolled in this study. All patients underwent CT scan 5 days before the surgery and within 5 days after resection. CT images were reconstructed with the MI-3DVS to assist to perform hepatectomy. Simple linear regression, intra-class correlation coefficient (ICC) and Bland-Altman analysis were used to evaluate the relationship and agreement between actual excisional liver volume (AELV) and predicted excisional liver volume (PELV).

RESULTS

Among 69 patients in this study, 62(89.85%) of them were diagnosed with hepatocellular carcinoma by histopathologic examination, and 41(59.42%) underwent major hepatectomy. The average AELV was 330.13 cm3 and the average PELV was 287.67 cm3. The simple regression equation is AELV = 1.016 × PELV+30.39(r = 0.966; p < 0.0003). PELV (ICC = 0.964) achieved an excellent agreement with AELV with statistical significance (p < 0.001). 65 of 69 dots are in the range of 95% confidence interval in Bland-Altman analyses.

CONCLUSIONS

The MI-3DVS has advantages of simple usage and convenient hold. It is accurate in assessment of postoperative liver volume and improve safety in liver resection.

Albumin-bilirubin versus Child-Pugh score as a predictor of outcome after liver resection for hepatocellular carcinoma

BACKGROUND

The Child-Pugh (CP) score is used widely to assess liver function and predict postoperative outcomes in patients with hepatocellular carcinoma (HCC). Recently, the albumin-bilirubin (ALBI) score has been validated as a predictor of overall survival in these patients. This study aimed to compare the ability of the ALBI and CP scores to predict outcomes in patients with HCC after liver resection with curative intent.

METHODS

Consecutive patients who underwent liver resection with curative intent for HCC between January 2007 and July 2013 were included in this retrospective study. The performance of the ALBI score in predicting postoperative liver failure (PHLF) and long-term survival was compared with that of the CP score.

RESULTS

A total of 1242 patients were enrolled. Of these, 166 (13·4 per cent) experienced PHLF. The area under the receiver operating characteristic (ROC) curve of the ALBI score for predicting PHLF was greater than that of the CP score (0·723 versus 0·607; P < 0·001). Similar to findings for CP grade, the incidence and severity of PHLF increased with increasing ALBI grade. The ALBI grade stratified patients into at least two distinct overall survival cohorts (P < 0·001), whereas the CP grade did not. The ALBI grade also classified patients with CP grade A disease into two distinct overall survival cohorts (P < 0·001), and overall survival rates in the group with poorer survival were similar to those in the majority of patients with CP grade B disease. Both CP and ALBI scores had low power in predicting disease-free survival.

CONCLUSION

The ALBI grade predicted PHLF and overall survival in patients with HCC undergoing liver resection with curative intent more accurately than the CP grade.

Obesity Does Not Influence Outcomes in Hepatocellular Carcinoma Patients following Curative Hepatectomy

BACKGROUND

Whether obesity affects surgical outcomes in patients with hepatocellular carcinoma (HCC) is controversial. Here we retrospectively evaluated the impact of obesity on outcomes in HCC patients after curative hepatectomy.

METHODS

Patients with Child-Pugh A liver function who underwent curative hepatectomy between 2006 and 2010 were categorized as obese (BMI ≥25 kg/m2, n = 68) and non-obese (<25 kg/m2, n = 242). To reduce interference from baseline differences between the two groups, propensity score-matched analysis was performed in the ratio 1:2 using a caliper width of 0.1. Surgical outcomes were compared for 61 obese and 115 non-obese patients.

RESULTS

Obese patients had higher levels of albumin and aspartate aminotransferase, and more solitary tumors compared to the non-obese patients (all P<0.05). In the propensity-matched cohort, baseline characteristics did not differ between the two groups (all P>0.05). Obese and non-obese patients had comparable 30-day mortality (1.6% vs. 2.6%, P = 1.000), 90-day mortality (3.3% vs. 4.3%, P = 1.000), and incidence of postoperative complications (19.7% vs. 18.3%, P = 0.819). Overall survival at 1, 3, and 5 years was similar for obese patients (83.6%, 63.6%, 41.6%) as for non-obese patients (80.9%, 65.9%, 49.1%; P = 0.358). Disease-free survival at 1, 3, and 5 years was also similar for obese patients (71.5%, 36.3%, 24.3%) as for non-obese ones (60.2%, 43.7%, 27.7%; P = 0.969).

CONCLUSION

Our propensity score-matched analysis strengthens the case that obesity does not adversely affect surgical outcomes of HCC patients undergoing curative hepatectomy.

Impact of diabetes mellitus on the prognosis of patients with hepatocellular carcinoma after curative hepatectomy

BACKGROUND

The influence of diabetes mellitus (DM) on the prognosis of patients with hepatocellular carcinoma (HCC) remains controversial. Here we investigated the impact of DM on the prognosis of such patients after curative hepatectomy.

METHODS

A consecutive cohort of 505 patients with HCC (134 with DM, 371 without) underwent curative hepatectomy were retrospectively evaluated. Postoperative morbidity and mortality, overall survival (OS) and disease-free survival (DFS) were compared between patients with or without DM. Independent prognostic predictors were identified using the Cox proportional hazards model.

RESULTS

Patients with or without DM showed similar morbidity and 30- and 90- day mortality after curative hepatectomy (all P>0.05), as well as similar DFS at 1, 3, 5 years (P = 0.781). However, the group of patients with DM showed significantly lower OS at 1, 3, 5 years than the group without DM (P = 0.038). Similar results were obtained in the propensity-matched cohort. Cox multivariate analysis identified DM as an independent predictor of poor OS, but not of poor DFS. We repeat compared OS and DFS for DM and non-DM subgroups defined according to the presence or absence of hepatitis B virus infection and cirrhosis. Similar results were obtained in all subgroups except the non-cirrhotic subgroup which showed patients with and without DM had similar OS.

CONCLUSIONS

DM does not significantly affect the postoperative morbidity or mortality or the DFS of patients with HCC after curative hepatectomy. It is, however, associated with significantly lower OS, especially in patients with cirrhosis.

Partial hepatectomy for liver metastases from nasopharyngeal carcinoma: a comparative study and review of the literature

BACKGROUND

The management of liver metastases from nasopharyngeal carcinoma (NPC) has not been extensively investigated. This study aimed to compare the long-term outcome of patients with liver metastases from NPC who were treated by a partial hepatectomy or transcatheter hepatic artery chemoembolization (TACE).

METHODS

Between January 1993 and December 2010, 830 patients were diagnosed with liver metastases from NPC and exhibited a complete response to the primary cancer of the nasopharynx and regional lymph nodes. Fifteen patients with intrahepatic metastasis underwent R0 partial hepatectomy. As a parallel control group, another 15 patients with a resectable liver metastasis who underwent TACE were selected. Prior to the resection and TACE that were performed on patients in these two groups, radical radiotherapy with or without adjuvant chemotherapy was administered. Clinicopathological data and treatment outcomes were compared retrospectively.

RESULTS

No significant differences were observed between the two groups in terms of the clinicopathological features, which include gender ratio, liver function, accompanying cirrhosis, rate of infection with the hepatitis B virus, tumor size, tumor number, pathological type and preoperative comorbidities. The 1-, 3- and 5-year overall survival rates from the time of hepatectomy were 85.7%, 64.2% and 40.2%, respectively, with a median survival of 45.2 months, whereas the 1-, 3- and 5-year overall survival rates were 53.3%, 26.6% and 20.0% for patients in the control group (P = 0.039), respectively, with a median survival of 14.1 months. The actuarial median progression-free survival (PFS) of the patients in the resection group was 21.2 months, and the 1-, 3- and 5-year PFS rates were 70%, 53% and 18%, respectively. In the control group, the 1-, 3- and 5-year PFS rates were 27%, 7% and 0.0% (P = 0.007), respectively, with a median survival of 4.2 months. Thus far, 5 patients have survived for more than 5 years, and the longest survival time is 168.1 months.

CONCLUSIONS

For patients with limited liver metastases from NPC, hepatectomy provides a survival advantage over TACE. Due to the limited treatment options for patients with liver metastasis from NPC, hepatectomy should be recommended as an optimal treatment. Moreover, perioperative chemotherapy may be associated with an improved prognosis.

Liver resection and metabolic disorders: An undescribed mechanism leading to postoperative mortality

AIM: To investigate the mechanism leading to perioperative mortality in patients undergoing major liver resection and presenting with metabolic disorders.

METHODS: The link between Metabolic Syndrome and non-alcoholic fatty liver disease is currently demonstrated. Various metabolic disorders and the Metabolic Syndrome (the association of ≥ 3 metabolic disorders) have been recently described as a risk factor of perioperative mortality in major liver resection. Patients who passed away during perioperative course of major liver resection and presenting with the association of ≥ 2 metabolic disorders without any other known cause of liver disorders were reviewed.

RESULTS: From January 2001 to May 2010 in a tertiary centre, ten patients presenting with ≥ 2 metabolic disorders without any other known cause of liver disorders died during perioperative course of major liver resection. The same four-consecutive-steps sequence of events occurred, including jaundice. The analysis of this series suggested a rapidly deteriorating congestive liver resulting in an increased portal hypertension leading to hepatorenal syndrome and lately to multiorgan failure (mimicking septic collapse) as the mechanism leading to exitus. The acute portal hypertension is mainly related to the surgical procedure. The chronic portal hypertension is indeterminate. Patients with ≥ 2 metabolic disorders should be considered as potentially presenting with portal hypertension possibly evolving towards hepatorenal syndrome; thus, they should be considered as having a high perioperative risk and should be carefully evaluated before undergoing major liver resection.

CONCLUSION: As fibrosis was not present or marginal in liver specimens, the real cause of portal hypertension in patients with multiple metabolic disorders should be investigated with further studies.

Comparing outcomes of two vascular inflow occlusion techniques and treatment without vascular occlusion during major hepatectomy in patients with Hepatitis B-related hepatocellular carcinoma

Background

Significant hemorrhage together with blood transfusion has negative impact on postoperative morbidity, mortality, and long-term survival of liver resection. Various techniques of vascular occlusion have been developed to reduce intraoperative blood loss. The objective of this study was to compare the outcomes of Pringle maneuver, hemi-hepatic vascular occlusion, and treatment without vascular occlusion used during liver resection.

Method

Data of 574 patients with Hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC), who underwent major hepatectomy between January 2009 to March 2013 by Pringle maneuver (N = 158), hemi-hepatic vascular inflow occlusion (N = 216), or without any vascular occlusion (N = 200), were included in this retrospective study. Perioperative blood transfusion, intraoperative blood loss, and postoperative liver function, and surgical complications were analyzed and compared between the three groups.

Result

There were no significant difference observed in postoperative bilirubin, liver enzyme, and albumin levels between three groups (P>0.05). 5 patients (2.5%) in no occlusion group, 2 (1.3%) in Pringle group, and 8 (3.7%) in hemi-hepatic group had liver failure; but, there were no differences (P>0.05). The overall postoperative complications rate between three groups did not reach significant differences (33.5% vs 34.2% vs 42.6%, respectively; P>0.05). However, significant differences in intraoperative blood loss between no occlusion group (638.2±426.8 ml) and Pringle group (518.0±451.0 ml) or hemi-hepatic group (513.0±366.7 ml) (P<0.01).

Conclusion

Although there were no differences found between three groups regarding postoperative complications rate, no vascular occlusion group had more blood loss than the other two groups during liver resection.

Associated factors with surgical site infections after hepatectomy: predictions and countermeasures by a retrospective cohort study

BACKGROUND

To clarify the factors associated with post-hepatectomy surgical site infections (SSIs), the clinicopathological data of 526 patients who underwent hepatectomy was retrospectively examined as a retrospectively cohort study.

METHODS

Patient demographics, liver functions, histological findings, surgical records and post-hepatectomy morbidity were compared between non-SSI and SSI groups; the SSI group included superficial and deep SSIs.

RESULTS

The prevalence of SSIs (5-8%) has not changed over an 18-year period. Deep SSIs were significantly more increased in male patients with lower performance statuses and American Society of Anesthesiologists (ASA) scores (p < 0.05). SSIs tended to be less prevalent, although not significant (p = 0.10), in patients who underwent laparoscopic hepatectomies compared to those who underwent laparotomies. For patients in whom hemostatic devices were used, the prevalence of superficial SSIs was significantly lower than those in whom the devices were not used (p < 0.05). Blood loss and transfusion were significantly more frequent in the deep SSI group compared to other groups (p < 0.01). Hospital stay in the deep SSI group was significantly longer compared to other groups. The incidence of morbidity was more frequent in the SSI groups compared with the non-SSI group (p < 0.001). A multivariate analysis showed that not using a vessel sealing device was significantly associated with superficial SSIs; male gender, hepatic failure and bile leakage were significantly associated with deep SSIs (p < 0.05).

CONCLUSIONS

SSIs were important indicators of patient outcomes after hepatectomies, and preventing SSI development after surgical procedures is an important step in improving the overall prevalence of SSIs.

Metabolic disorders, non-alcoholic fatty liver disease and major liver resection: an underestimated perioperative risk

INTRODUCTION

Despite increasing evidence of an association of metabolic syndrome and liver degeneration, little is known about the results of major hepatic resection in patients with metabolic disorders. Following the observation of some unexplained perioperative deaths following uncomplicated right hepatectomy in patients presenting metabolic disorders, we analyzed the perioperative mortality in such population.

MATERIAL AND METHODS

A retrospective analysis of immediate outcome was performed of patients undergoing right hepatectomy and affected by two or more metabolic disorders (diabetes mellitus, hypertension, dyslipidemia, obesity/overweight) without any other known cause of liver disease from January 2001 to May 2010.

RESULTS

Among 151 patients undergoing right hepatectomy, 30 patients presented two or more metabolic disorders. Perioperative mortality in this group reached 30 % (nine patients). In patients presenting MS (≥3 disorders), mortality reached 54 %. Univariate analysis identified four criteria associated with poor prognosis: MS, perioperative bleeding ≥1,000 mL, middle hepatic vein resection and primary hepatic malignancy. At multivariate analysis, middle hepatic vein resection and underlying primary hepatic malignancy resulted as being related to mortality.

CONCLUSIONS

Patients presenting with multiple metabolic disorders should be carefully evaluated before major liver resection, especially when the procedure is planned for hepatocellular carcinoma and when a middle hepatic vein resection is required.

Synchronous resection of colorectal cancer and liver metastases: comparative views of colorectal and liver surgeons

AIM

The optimal management of patients presenting with colorectal cancer and synchronous liver metastases is controversial. This survey was intended to summarize the opinions of UK colorectal and liver surgeons on the specific issues pertaining to synchronous resection.

METHOD

A validated electronic survey was sent to the consultant members of the Association of Coloproctology of Great Britain and Ireland (ACPGBI) and the Association of Upper Gastrointestinal Surgeons (AUGIS). The questions were structured to allow direct comparison between the two groups of the responses obtained.

RESULTS

Four hundred and twenty-four specialist colorectal surgeons and 52 specialist hepatobiliary surgeons were identified from the register of their respective associations. Responses were obtained from 133 (31%) colorectal and 22 (42%) liver surgeons. A majority of both groups of surgeons felt that synchronous resection was a valid therapeutic option. A majority of both groups believed that synchronous resection was justified despite the options of laparoscopic surgery and enhanced recovery programmes for each discipline. Agreed possible advantages of synchronous resections were: a decrease in the overall length of hospital stay, cost and patient anxiety. The major concern about synchronous resections was an excessive overall physiological insult. Specific scenarios indicated that synchronous resection was favoured for major/complex major colorectal resection with minor liver resection or most colorectal resections not involving an anastomosis with either a minor or major liver resection.

CONCLUSION

Although significant concerns relating to synchronous resection remain amongst colorectal and liver surgeons, a majority of them felt that synchronous resections could be offered to appropriately selected patients.

Clinicopathologic characteristics and surgical outcomes of hepatocellular carcinoma with portal vein tumor thrombosis

BACKGROUND

Hepatocellular carcinoma (HCC) has a high predilection for portal vein invasion. Furthermore, the treatment of HCC with portal vein tumor thrombosis (PVTT) is controversial. The objective of this study was to investigate clinicopathologic characteristics and surgical outcomes of HCC patients with PVTT.

METHODS

The clinicopathologic data and surgical outcomes of 88 patients HCC with PVTT and 211 patients without PVTT who underwent surgery were retrospectively reviewed. The risk factors and the prognosis of HCC patients with PVTT were determined.

RESULTS

Cirrhosis, serum alkaline phosphatase (ALP) > 100 IU/L, tumor size > 8 cm, incomplete tumor capsule, and adjacent organ invasion were risk factors for PVTT in HCC on multivariate analysis. Furthermore, HCC patients with PVTT received more major hepatectomies, had more intraoperative blood loss and greater blood transfusion requirements, and higher incidence of postoperative mortality compared with HCC patients without PVTT. The median overall survival of HCC patients with PVTT after surgery was 9 mo, with the 1-, 2-, and 3-y overall survival rates of 31.1%, 18.3%, and 15.2 %, respectively. AFP level, adjacent organ invasion, and PVTT location predicted overall survival of HCC patients with PVTT.

CONCLUSIONS

High serum ALP level, cirrhosis, large tumor, incomplete tumor capsule and adjacent organ invasion are predictors of PVTT in HCC. Surgery is a valid therapy for selected HCC patients with PVTT.

Refusal of cancer-directed surgery strongly impairs survival of patients with localized hepatocellular carcinoma

Background: This study investigated the frequency of patients with HCC who refused cancer-directed surgery and the characteristics and outcomes of these patients. Patients and Methods: A retrospective study was performed using data from the Surveillance, Epidemiology, and End Results (SEER) Program. Characteristics of patients who refused CDS were compared with those who accepted surgery using logistic regression. The effect of refusing CDS on mortality was evaluated by Cox proportional hazards analysis. Results: Among 4373 surgical candidates, 142 patients (3.2%) refused the recommended CDS. The patients who refused CDS were frequently older, African American, widowed or divorced, and had advanced-stage tumors. In a logistic regression analysis, older age, African American, and being divorced or widowed were independently associated with refusal of CDS. After adjusting for other patient and tumor characteristics, the patients who refused CDS had a 2.5-fold (95% confidence interval, 2.339–3.189) higher risk of dying from HCC in comparison with patients who had CDS. Conclusions: The high rate of refusal may contribute in part to the disparity in utilization of CDS. Of greatest concern is that the patients who declined CDS had an impaired survival. This information might be helpful for patients to make a better-informed decision.

Three hundred and one consecutive extended right hepatectomies: evaluation of outcome based on systematic liver volumetry

OBJECTIVE(S)

This study aimed to determine the effect of preoperative liver volumetry on postoperative outcomes after extended right hepatectomy. Primary end point was to evaluate whether future liver remnant (FLR)/standardized liver volume ratio (sFLR) >20% is sufficient for a safe hepatic resection. Secondary end point was to assess whether preoperative portal vein embolization (PVE) is associated with improved outcome in patients with initial sFLR ≤ 20%.

BACKGROUND DATA

An sFLR >20% of the total liver volume has been proposed as sufficient for safe hepatic resection, but this concept has not been validated in a large series. In addition, recent reports suggest preoperative PVE is indicated for sFLR <30%.

METHODS

The impact of sFLR and PVE on short-term outcomes (postoperative complications, liver insufficiency, and 90-day mortality) was analyzed in 301 consecutive patients after extended right hepatectomy. Liver volumetry accounted for partial resection of segment IV. Liver insufficiency was defined as peak postoperative serum bilirubin >7 mg/dL. Predictors of liver insufficiency were identified by multivariate logistic regression.

RESULTS

Postoperative liver insufficiency occurred in 45 patients (15%) and accounted for 61% of deaths. Among 290 patients who underwent liver volumetry, sFLR was <20% in 38 patients, 20.1% to 30% in 144, and ≥ 30% in 108. Rates of postoperative liver insufficiency and death from liver failure were similar between patients with sFLR 20.1% to 30% and sFLR ≥ 30% but higher in patients with sFLR ≤ 20% (P 0.05). Postoperative outcomes were similar between patients with increase in sFLR from ≤ 20% to >20% after PVE and patients with initial sFLR >20%. Multivariate analysis revealed that body mass index >25 kg/m2, intraoperative blood transfusion, and sFLR ≤ 20% (odds ratio = 3.18; 95% CI, 1.34-7.54) independently predicted postoperative liver insufficiency.

CONCLUSIONS

Systematic measurement of FLR volume is important to select patients for PVE and extended right hepatectomy. A sFLR >20% is sufficient for safe hepatic resection and sFLR 20.1% to 30% is not an indication for preoperative PVE.

Long-term outcomes and prognostic factors of elderly patients with hepatocellular carcinoma undergoing hepatectomy

OBJECTIVE

The present study aimed to evaluate the long-term outcomes and prognostic factors of elderly patients with hepatocellular carcinoma (HCC) undergoing hepatectomy.

MATERIAL AND METHODS

From January 1983 to December 2006, 2,283 patients with HCC received hepatectomy in Sun Yat-sen University Cancer Center. The clinicopathological data and treatment outcomes of 67 elderly HCC patients (elderly group, > or =70 years of age) and 268 patients (control group, <70 years of age) who were selected randomly from the 2216 younger patients were compared retrospectively.

RESULTS

The elderly HCC patients had lower hepatitis B surface antigen-positive rate (P < 0.001), lower rate of marked alpha-fetoprotein elevation (P = 0.004), higher infection rate of hepatitis C virus (P = 0.010), more preoperative comorbidities (P < 0.001), higher rate of tumor encapsulation (P = 0.040), and better overall survival rate (P = 0.017); whereas there were no significant differences between these two groups in other factors, including gender ratio, liver function, accompanying cirrhosis, pathological tumor-node-metastasis (pTNM) staging, satellite nodules, vascular invasion, tumor rupture, resection margin, intraoperative blood loss, incidence of postoperative complications, hospital mortality, and disease-free survival rate. Multivariate analysis showed that pTNM staging was an independent prognostic factor of long-term survival in elderly patients with HCC.

CONCLUSION

HCC in the elderly was less HBV-associated, less advanced, and less aggressive. Hepatectomy for selected elderly patients with HCC possibly have a better curative effect compared with younger patients. For the elderly patients without preoperative comorbidities or with controlled comorbidities, hepatectomy is a safe and effective treatment. pTNM staging is the only independent predictor of postoperative overall survival in elderly HCC patients.

Prognostic impact of surgical complications and preoperative serum hepatocyte growth factor in hepatocellular carcinoma patients after initial hepatectomy

INTRODUCTION

The relationship between postoperative complications and survival after hepatectomy is not completely understood. The purpose of this study was to determine if surgical complications would have a prognostic impact and to identify any difference of the prognostic factors between a complication group and complication-free group for hepatocellular carcinoma (HCC) patients after initial hepatectomy.

PATIENTS AND METHODS

One hundred consecutive HCC patients were analyzed in this study. Operative variables and liver functional markers were compared between the complication group and complication-free group. The diagnostic accuracy for predicting complications was evaluated by the receiver operating characteristic (ROC) curve. The Kaplan-Meier method with log-rank test was employed for survival analysis. Univariate and multivariate analyses were performed to identify the prognostic factors in each group.

RESULTS AND DISCUSSION

A total of 45 complications in 32 patients were observed according to the modified Clavien classification. The albumin, gamma-glutamyl transferase, choline esterase, indocyanine green retention rate at 15 min (ICGR(15)), hyaluronic acid, prealbumin, hepatocyte growth factor (HGF), HH15, and LHL15 levels before hepatectomy, operative time, and blood loss were significantly different between the two groups. Multivariate analysis revealed that gamma-glutamyl transferase, ICGR(15), and HGF were independent risk factors for postoperative complications. The values of the areas under the ROC curve for predicting complications proved the significance of the predictions. Although the recurrence-free survival rates were not significantly different, the overall survival rates were significantly different between the two groups. Univariate and multivariate analyses for the overall survival rate showed that the stage of the HCC and HGF for the complication group and tumor size for the complication-free group were independent prognostic factors for overall survival.

CONCLUSION

Postoperative surgical complications could have a prognostic impact on overall survival in HCC patients after initial hepatectomy. Serum HGF could be a factor connected to complications and survival in this group.

A simple, noninvasively determined index predicting hepatic failure following liver resection for hepatocellular carcinoma

BACKGROUND

A novel index, the serum aspartate aminotransferase activity/platelet count ratio index (APRI), has been identified as a biochemical surrogate for histological fibrogenesis and fibrosis in cirrhosis. We evaluated the ability of preoperative APRI to predict hepatic failure following liver resection for hepatocellular carcinoma.

METHODS

Potential preoperative risk factors for postoperative hepatic failure (hepatic coma with hyperbilirubinemia, four patients; intractable pleural effusion or ascites, 30 patients; and variceal bleeding, one patient) as well as APRI were evaluated in 366 patients undergoing liver resection for hepatocellular carcinoma. Prognostic significance was determined by univariate and multivariate analyses.

RESULTS

Hepatic failure developed postoperatively in 30 patients, causing death in four. APRI correlated with histological intensity of hepatitis activity and degree of hepatic fibrosis, and was significantly higher in patients who developed postoperative hepatic failure than in others without failure. Risk of postoperative hepatic failure increased as the serum albumin concentration and platelet count decreased and as indocyanine green retention rate at 15 min, aspartate and alanine aminotransferase activities, and APRI increased. Only APRI was an independent preoperative factor on multivariate analysis. Of the four patients who died of postoperative hepatic failure, three had an APRI of at least 10.

CONCLUSIONS

Preoperative APRI independently predicted hepatic failure following liver resection for hepatocellular carcinoma. Patients with an APRI of 10 or more have a high risk of postoperative hepatic failure.