Cancers œsophagiens : nouveautés et défis des prises en charge chirurgicales

Surgical resection of esophageal carcinoma is one of the mainstays of curative treatment for these cancers. During the last decade, numerous improvements in surgical approaches and perioperative management of these patients have resulted in a decrease in postoperative morbidity and mortality. Thus, centralization of patients with esophagogastric adenocarcinoma in high volume center, development of minimally invasive surgery and improvements in surgical imaging have led to reduce mortality rate, major pulmonary complication rate and postoperative chylothorax rate. Optimization of postoperative management with enhanced recovery programs has meanwhile reduced the rate of major postoperative complication and the hospital length of stay. The objective of this review is to give an overview of novelties and challenges regarding surgical management of patients with esophageal carcinoma.

Treatment strategies to resectable metachronous colorectal liver metastases after adjuvant oxaliplatin-based chemotherapy for primary colorectal cancer

BACKGROUND

outcome of patients who develop resectable metachronous colorectal liver metastases (CLM) after adjuvant oxaliplatin-based chemotherapy for Stage III colorectal cancer (CRC) is not well defined and the value of preoperative chemotherapy is controversial.

METHODS

From 2006 to 2013, all patients undergoing liver resection for Class I metachronous CLM after adjuvant oxaliplatin-based chemotherapy for CRC, across 32 French academic centers, were included.

RESULTS

Sixty-two patients with an average of 2 ± 1 CLM were included. Thirty-two (52%) patients received preoperative chemotherapy. There was no significant difference in the characteristics of CLM between patients with or without preoperative chemotherapy. After a median follow-up of 29 months, 3-year overall and disease-free survival rates were 79.8% and 34.6%, respectively. The median disease-free survival was not different in patients with or without preoperative chemotherapy (17 vs. 35 months respectively, p = 0.112). In multivariate analysis, only CEA level > 200 ng/ml was associated with the risk of recurrence (p = 0.027; OR = 4.7, 95% CI = 1.2-18.7).

CONCLUSION

Liver resection provides a good outcome in patients with limited metachronous CLM after adjuvant oxaliplatin-based chemotherapy for CRC. The interest of preoperative chemotherapy is not obvious and should be tested in a prospective controlled study.

Understanding the surgeon's behaviour during robot-assisted surgery: protocol for the qualitative Behav'Robot study

INTRODUCTION

Robot-assisted surgery is spreading worldwide, accounting for more than 1.2 million procedures in 2019. Data are sparse in the literature regarding the surgeon's mechanisms that mediate risk-taking during a procedure, especially robot-assisted. This study aims to describe and understand the behaviour of the surgeons during robot-assisted surgery and the change in their behaviour with increasing experience in using the robot.

METHODS AND ANALYSIS

This is a qualitative study using semistructured interviews with surgeons who perform robot-assisted surgery. An interview guide comprising open questions will be used to ensure that the points to be discussed are systematically addressed during each interview (ie, (1) difference in behaviour and preparation of the surgeon between a standard procedure and a robot-assisted procedure; (2) the influence of proprioceptive modifications, gain in stability and cognitive biases, inherent in the use of a surgical robot and (3) the intrinsic effect of the learning curve on the behaviour of the surgeons. After transcription, interviews will be analysed with the help of NVivo software, using thematic analysis.

ETHICS AND DISSEMINATION

Since this project examines professional practices in the field of social and human sciences, ethics committee was not required in accordance with current French legislation (Decree no 2017-884, 9 May 2017). Consent from the surgeons is implied by the fact that the interviews are voluntary. Surgeons will nonetheless be informed that they are free to interrupt the interview at any time.Results will be presented in peer-reviewed national and international congresses and submitted to peer-reviewed journals for publication. The communication and publication of the results will be placed under the responsibility of the principal investigator and publications will be prepared in compliance with the ICMJE uniform requirements for manuscripts.

TRIAL REGISTRATION NUMBER

NCT04869995.

[Recent progress in the curative surgical treatment of stomach cancer]

Surgical resection is currently the only potentially curative treatment for gastric cancer. Nodal extension, present in 3/4 of the patients, is related to topography and penetration of the tumor and is progressive, beginning by the perigastric proximal lymph nodes N1 to the perivascular distal nodes N2. A subtotal gastrectomy is possible for distal cancers and total gastrectomy is necessary for cancers of the middle and upper portions. D1 lymphadenectomy is the resection of the N1 perigastric nodes (> 15) and D2 lymphadenectomy is the resection fo the N2 perivascular nodes (> 25). In Japan, 5 year survival after D2 resection is very high, around 60%, but all the series are retrospective with a high proportion of superficial cancers. In several recent European controlled studies, D2 resection is responsible for a high mortality rate (> 10%) and the reported 45% survival is not statistically different from the D1 resection. In Western patients an "in-between" lymphadenectomy without spleno-pancreatectomy can be recommended with analysis of at least 15 nodes, and with a mortality lower than 5%. Pathological analysis of the operative specimen allows to use the new TNM classification where the number of positive lymph nodes is the main independent prognostic factor.

[Percutaneous drainage of infected pancreatic necrosis: an alternative to surgery]

AIM OF THE STUDY

To describe a technique of percutaneous CT guided catheter drainage of infected pancreatic necrosis and to report the results of this technique compared with those of the conventional surgical treatment and of other percutaneous drainage series.

PATIENTS AND METHODS

Between 1992 and 1997, the series included 32 patients who had a severe acute necrotizing pancreatitis with a mean Ranson score of 4.6, scored into grade D (n = 10), and grade E (n = 22), according to the Balthazar radiological staging. Modified Van Sonnenberg 24 F double lumen catheters were used for continuous irrigation and aspiration.

RESULTS

Forty-nine drains were inserted for 41 infected necroses and eight abscesses. Among the 32 patients, the proof of infected necrosis was obtained in 26 patients by fine needle aspiration and culture (enterococcus, staphylococcus, pseudomonas). The average delay of catheter insertion was 23 days after onset of pancreatitis; the mean duration of drainage was 43 days, and an average of three catheters per patient was required. Five patients (15%) died, and among the survivors, 16 (59%) presented 21 complications including 14 enterocutaneous or pancreatic fistulas. A subsequent surgical procedure including two necrosectomies was necessary in six patients.

CONCLUSION

This study demonstrates that percutaneous drainage of infected pancreatic necrosis with a 15% mortality and 70% success rate, represents an interesting alternative to conventional surgery.