[Laparoscopic downstaging surgery for colorectal cancer with synchronous liver metastases: what value in two-stage hepatectomies?]

Bilobar hepatic metastases from colorectal cancer pose a problem in terms of management, with curative surgery often requiring several stages. The purpose of our study was to evaluate laparoscopic approach with portal vein ligation in the first step of two-stage hepatectomy in the treatment of patients with synchronous liver metastases from colorectal cancers (SLMCRC). We conducted a single-center retrospective study from August 2016 to January 2020. It included patients with SLMCRC requiring two-stage curative surgery due to insufficient future liver remnant volume (FRL). The primary endpoint was to evaluate postoperative morbidity and mortality following first step laparoscopy at 30 days. The secondary endpoints were to evaluate conversion rate, FRL hypertrophy following laparoscopic portal vein ligation, postoperative morbidity and mortality of 2nd step of two-stage hepatectomy and finally treatment completion rate. We included six patients (4 men and 2 women) with a mean age of 64 (44-72) years. The first step of surgery consisted of a laparoscopic colonic resection associated with right portal vein ligation in 5 patients and left portal vein ligation in one patient. The postoperative morbimortality was zero. The conversion rate was zero. After portal vein ligation, 5 of the 6 patients had significantly enlarged FRL, with a mean gain in FRL volume of 59.48% (31.02%-68.71%). Two of the six patients had severe morbidity after 2nd step hepatectomy (Clavien IIIb). All patients completed the treatment.

Outcomes of Laparoscopic Combined Surgery for Colorectal Cancer with Synchronous Liver Metastases: A Prospective Comparative Study

AIM

Combined surgery for colorectal cancer with synchronous liver metastases (CRCSLM) is addressed to selected patients. Technically, by conventional surgery this simultaneous approach raises a problem of adequate access. The purpose of this study is to assess the feasibility and safety of the laparoscopic approach in combined surgery.

METHODS

From August 2016 to January 2020 a monocentric prospective comparative study was conducted. Short and long-term outcomes of simultaneous laparoscopic surgery (SLS) were evaluated. Short-term outcomes of SLS were compared to those of laparoscopic colorectal surgery alone (LCRS).

RESULTS

Forty patients were included in each arm. In SLS group, the median age was 62.5 years. Hybrid surgery was performed for 60% of patients, down staging laparoscopic surgery for 22.5% of patients and totally laparoscopic surgery for 10% of patients. The conversion rate was 7.5%. Mean operating time was 323 minutes. Overall morbidity rate was 27.5%. Multivariate analysis showed that anemia (p = 0.046) and number of liver resections (p = 0.018) were independent factors of morbidity. Ninety-five percent of colorectal resections were R0, 90% of liver resections were R0. The mean length of hospital stay was 5.1 ± 2.58 days. The recurrence rate was 22.5%. Median diseasefree survival was 27 months. There was no difference in short-term outcomes between the two arms except for operating time which was longer in SLS arm (p < 0.0005).

CONCLUSION

Laparoscopy is feasible in combined surgery in selected patients. Minor liver resection may be associated with laparoscopic colorectal surgery without increasing morbidity.

Liver Resection for Metastasis of Adenoid Cystic Carcinoma of the Lacrymal Gland : A Case Report and Literature Review

Adenoid cystic carcinoma (ACC) is a rare malignant tumor. The first description of the ACC dates back to 1856 by Billroth. The ACC of the lacrimal glands are very rare. They are known for their locally aggressive character. Liver metastases are almost exceptional. We report the case of a patient with hepatic metastasis ACC. After eye enucleation of the primitive lacrimal gland ACC, the patient received external adjuvant radiotherapy. Three years later, she presented an upper abdominal pain. CT scan and MRI showed a liver tumor and the diagnosis of intrahepatic cholangiocarcinoma was made regarding imaging features. A left hepatectomy was performed; histology concluded to a liver metastasis of ACC. The immediate post-operative course was uneventful and no adjuvant treatment was decided. Thirty four months later, the patient presented with lung metastasis. Liver metastasis of ACC are very rare. Extended liver surgery is recommended especially for isolated liver metastasis with a long free gap between primary tumor and the liver metastasis. Keywords: Adenoid cystic carcinoma, Hepatic metastasis, Lacrymal gland