Research Article
Effect of Prophylactic Transcatheter Arterial Chemoembolizationon the Recurrence Rate of Hepatocellular Carcinoma with Microvascular Invasion after R0 Resection
Ke-Yue Li*, Shuai-min Zhang, Cheng-Xian Shi, Ke-li Tang and Jian-zhao Huang
Department of Hepatobiliary Surgery, Guizhou Provincial People’s Hospital, China
*Corresponding author: Ke-Yue Li, Department of Hepatobiliary Surgery, Guizhou Provincial People’s Hospital, Guiyang, Guizhou Provience, 550002, China
Published: 02 Aug, 2018
Cite this article as: Li K-Y, Zhang S-M, Shi C-X,
Tang K-l, Huang J-Z. Effect of
Prophylactic Transcatheter Arterial
Chemoembolizationon the Recurrence
Rate of Hepatocellular Carcinoma
with Microvascular Invasion after R0
Resection. Clin Surg. 2018; 3: 2059.
Abstract
Objective: We investigated the effect of preventive Transcatheter Arterial Chemoembolization
(TACE) in preventing recurrence of Hepatocellular Carcinoma (HCC) after R0 resection.
Methods: We retrospectively analyzed recurrence rates over time for 250 cases of HCC after R0
resection, who were divided into patients who underwent TACE (TACE+) and had Microvascular
Invasion(MVI+; n=80); TACE+ but did not have MVI (MIV-; n=100); MVI+ but did not undergo
TACE (TACE-, n=30); or TACE-/MVI- (n=40).
Results: Among both TACE+ and TACE- patients, MVI- patients had significantly lower recurrence
rates at 2(29/100, 29% and 15/40, 37.5%) and 3(40/100, 40.0% and 21/40, 52.5%) years after their
procedures than did MVI+ patients (35/80, 43.8% and 20/30, 66.7%; 44/80, 55% and 23/30, 76.7%);
the TACE- patients also had lower recurrence rates in the 1st year (9/40, 22.5% vs. 14/30, 46.7%),
(all P<0.05). Among MVI+ patients, the TACE+ group had significantly lower recurrence rates at
1(20/80, 25.0%), 2(35/80, 43.8%) and 3(44/80, 55.0%) years than the TACE- group (14/30, 46.7%
and 20/30, 66.7% and 23/30, 76.7%), (all P<0.05). Recurrence rates in the MVI-patients tended to be
lower at 1(20/100, 20.0%), 2(29/100, 29.0%) and 3(40/100, 40.0%) years for the TACE+ group (9/40,
22.5% and 15/40, 37.5% and 21/40, 52.5%), but not significantly so (all P>0.05).
Conclusion: Recurrence rates for MVI+ patients were significantly higher than for MVI- patients.
Postoperative adjuvant TACE may be beneficial for HCC patients with MVI.
Keywords: Hepatocellular carcinoma; Transcatheter arterial chemoembolization; Microvascular invasion; R0 resection; Recurrence
Introduction
Hepatocellular Carcinoma (HCC) is one of the most common malignancies in the world [1,2] and causes about 500,000 deaths every year [3]. Although hepatectomy and liver transplantation are considered to be curative therapies for HCC [1], HCC often relapses after surgery. Transcatheter arterial chemoembolization (TACE) is thought to prevent recurrence, but its efficacy is controversial [4]. Here, we analyzed the effect of TACE on recurrence in 250 patients with HCC who underwent R0 resections.
Materials and Methods
Patients
We followed up 250 patients with HCC who underwent R0 resection between January 2005 and
December 2014, over 36 months after their surgeries. Inclusion and exclusion criteria used in this
study are shown in Table 1. All patients were informed consent to participate in this study. The trial
was registered nationally and approved by our institute ethics committee.
We divided the cohort into four groups: Group 1, who underwent TACE (TACE+) and had
Microvascular Invasion (MVI+; n=80); Group 2, who were TACE+ but did not have MVI (MIV-;
n=100); Group 3, who were MVI+ but did not undergo TACE (TACE-, n=30); and Group 4, who
were TACE-/MVI- (n=40).
TACE
Patients who underwent TACE did so within 1 to 2 months
after their hepatectomies (Table 2). The TACE procedure was a
“sandwich” method, in which a chemotherapeutic agent (mainly
iodide oil) was injected before and after administering chemotherapy.
The chemotherapy regimen included fluorouracil, a platin (cisplatin
or carboplatin) and Adriamycin (doxorubicin or epirubicin). All
patients in this study who underwent prophylactic TACE received
only one prophylactic TACE treatment, within 2 months after their
surgeries.
Statistical analysis
Statistical analyses were performed using SPSS 16.0 for Windows
(SPSS Inc., Chicago, IL). The differences between groups of data were
analyzed with the chi-square test (two-tailed). A p-value of <0.05 was
considered statistically significant.
Table 1
Table 2
Result
The study cohort included 131 males and 119 females. Their
average age was 48.01 years (range: 16 to 65 years). Recurrence rates
for each patient group, over each time period are shown in Table 3
and 4.
Among both TACE+ and TACE- patients, MVI- patients had
significantly lower recurrence rates at 2(29/100, 29% and 15/40,
37.5%) and 3(40/100, 40.0% and 21/40, 52.5%) years after their
procedures than did MVI+ patients (35/80, 43.8% and 20/30, 66.7%;
44/80, 55% and 23/30, 76.7%); the TACE- patients also had lower
recurrence rates in the 1st year (9/40, 22.5% vs. 14/30, 46.7%), (all
P<0.05). Among MVI+ patients, the TACE+ group had significantly
lower recurrence rates at 1(20/80, 25.0%), 2(35/80, 43.8%) and
3(44/80, 55.0%) years than the TACE-group (14/30, 46.7% and 20/30,
66.7% and 23/30, 76.7%), (all P<0.05). Recurrence rates in the MVIpatients
tended to be lower at 1(20/100, 20.0%), 2(29/100, 29.0%) and
3(40/100, 40.0%) years for the TACE+ group (9/40, 22.5% and 15/40,
37.5% and 21/40, 52.5%), but not significantly so (all P>0.05).
Discussion
Although preventive TACE has become a common post-surgical
treatment for HCC [4,5], its efficacy is still controversial. Support for
TACE is based on the fact that compressing a tumor during surgery
may lead to its spread. Postoperative TACE helps to clear up any
proliferating, remnant, or difficult-to-find tumor cells, and thus
reduce early recurrence rates [5,6]. A meta-analysis of 4 randomized
controlled trials and 3 non-randomized controlled trials concluded
that postoperative adjuvant TACE improves survival rates at 2 years
and 3 years after resection [7]. The basis for opposing the use of
TACE is that TACE can obviously inhibit patients’ immune systems,
thereby contributing to tumor recurrence and metastasis [8,9]. Our
results show that among MVI- patients, TACE+ patients tended to
have lower recurrence rates at 1, 2 and 3 years, but not significantly
so (P<0.05).
The Milan criteria classify MVI as an independent risk factor for
HCC [10] and its presence in the hepatic or portal veins or the bile
duct is an accurate predictor of recurrence risk and overall survival
in patients with HCC after R0 liver resection and transplantation
[11-14]. Postoperative adjuvant TACE may be beneficial for HCC
patients with MVI [15].
Our results show that among MVI+ patients, the TACE+
subgroup had lower recurrence rates over 1, 2 and 3 years (P<0.05),
which indicates that timely administration of preventive TACE can
benefit MVI+ patients.
In conclusion, the recurrence rate of MVI+ patients was
significantly higher than that of MVI- patients; however, MVI+
patients may benefit from postoperative adjuvant TACE within 1 to 2
months after R0 resection of HCC.
Table 3
Table 4
Acknowledgment
Ke-Yue Li, Shuai-min Zhang, Cheng-xian Shi, Ke-li Tang and Jian-zhao Huang declare that we have no conflict of interest. All authors of this paper have read and approved the final version submitted. The work was not supported by any company or group. We thank Marla Brunker, from Edanz Group (www.edanzediting. com/ac) for editing a draft of this manuscript.
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