Comparison of short-term outcomes and perioperative costs in laparoscopic versus robotic surgery for rectal cancers: A real-world cohort study using Japanese nationwide inpatient database.

Aim: Many studies have revealed the benefits of robotic surgery for rectal cancer; however, real-world data are insufficient. This study aimed to compare the short-term outcomes and perioperative costs of laparoscopic and robotic surgery for rectal cancer using a real-world database.

Methods: The data of patients who underwent laparoscopic or robotic surgery for rectal cancer between January 2018 and January 2021 from a nationwide Japanese inpatient database provided by Medical Data Vision Co.

Laparoscopic extraperitoneal approach for lateral lymph node dissection for patients with metachronous lateral pelvic lymph node metastases following surgery for rectal cancer: a case series and short-term outcomes.

Background: There have been few reports of a totally extraperitoneal approach for laparoscopic lateral lymph node dissection (LLND) for patients with metachronous lateral pelvic lymph node metastases following surgery for rectal cancer. Therefore, this study reports the short-term outcomes of LLND via an extraperitoneal approach.

Methods: A total of 10 patients underwent LLND through a laparoscopic extraperitoneal approach in our hospital since October 2018.

Long-term survival and functional outcomes of laparoscopic surgery for clinical stage I ultra-low rectal cancers located within 5 cm of the anal verge: A prospective phase II trial (Ultimate trial).

Objective: To clarify the long-term oncological outcomes and postoperative anal, urinary, and sexual functions after laparoscopic surgery for clinical stage I very low rectal carcinoma located near the anal canal.

Summary Background Data: Laparoscopic surgery is widely applied for rectal cancer; however, concerns remain, with some studies showing poorer outcomes compared to open surgery.

Methods: This single-arm, phase II trial included patients registered preoperatively from 47 institutions in Japan.

Prediction model of the risk for lateral local recurrence in locally advanced rectal cancer without enlarged lateral lymph nodes: Lessons from a Japanese multicenter pooled analysis of 812 patients.

Aim: Although the oncological impact of lateral lymph node dissection on enlarged lateral lymph nodes has been gradually accepted over the last decade, that on lateral lymph nodes without swelling remains doubtful. This study aimed to develop a prediction model for the future risk of lateral local recurrence and to clarify the value of adding lateral lymph node dissection in locally advanced rectal cancer without enlarged lateral lymph nodes.

Methods: This retrospective, multi-institutional study recruited 812 patients with cStage II/III low rectal cancer without enlarged lateral lymph nodes <7 mm.

Medium-term oncological outcomes of totally laparoscopic colectomy with intracorporeal anastomosis for right-sided and left-sided colon cancer: propensity score matching analysis.

Background: This retrospective study aimed to compare long-term oncological outcomes between laparoscopic-assisted colectomy (LAC) with extracorporeal anastomosis (EA) and totally laparoscopic colectomy (TLC) with intracorporeal anastomosis (IA) for colon cancers, including right- and left-sided colon cancers.

Methods: Patients with stage I-III colon cancers who underwent elective laparoscopic colectomy between January 2013 and December 2017 were analyzed retrospectively. Patients converted from laparoscopic to open surgery and R1/R2 resection were excluded.

Anti-tumor effect of boron neutron capture therapy in pelvic human colorectal cancer in a mouse model.

Local recurrence of colorectal cancer (CRC) can occur in patients after curative resection, and additional surgical resection may therefore be required; however, this is a significant burden for patients, because additional surgical resection may necessitate the resection of other organs such as the bladder, prostate, uterus, or sacral bone. Therefore, there is a need for alternative therapeutic strategies. We focused on boron neutron capture therapy (BNCT) as a treatment modality that can selectively target tumor cells without excessive damage to normal tissues.

Successful Laparoscopic Treatment of Pancreatic Metastasis From Sigmoid Colon Cancer: A Case Report.

Progressive colorectal cancer frequently presents with various manifestations, including hepatic, pulmonary, and peritoneal metastases, as well as local and anastomotic site recurrences. However, pancreatic metastasis is extremely rare. Complete surgical resection is currently considered the most effective and only potentially curative treatment for colorectal cancer with distant metastases.

A new spray-type adhesion barrier (AdSpray) improves condition for surgical treatment in the reversal of Hartmann procedure: A case report.

Rationale: Hartmann procedure (HP) often causes severe postoperative adhesions in the pelvic space; therefore, the reversal of Hartmann procedure (RHP) is a challenging surgery. A new spray-type antiadhesion agent, AdSpray, has been reported to be useful in three-dimensional fields such as the liver. However, there are no reports of its use in HP.

Delta-like canonical Notch ligand 3 as a potential therapeutic target in malignancies: A brief overview.

Delta-like canonical Notch ligand 3 (DLL3) is a member of the Delta/Serrate/Lag2 (DSL) Notch receptor ligand family and plays a crucial role in Notch signaling, which influences various cellular processes including differentiation, proliferation, survival, and apoptosis. DLL3 is expressed throughout the presomitic mesoderm and is localized to the rostral somatic compartments; mutations in DLL3 induce skeletal abnormalities such as spondylocostal dysostosis. Recently, DLL3 has attracted interest as a novel molecular target due to its high expression in neuroendocrine carcinoma of the lung.

Clinical experience with near-infrared ray catheter, a fluorescent ureteral catheter, on laparoscopic surgery for colon diverticulitis: A case report.

Rationale: As the world's population ages, the number of surgical cases of colovesical fistulas secondary to colon diverticulitis is also expected to increase. The key issue while performing laparoscopic surgery for these fistulas is the avoidance of iatrogenic ureteral injury. There are no reports of Near-infrared Ray Catheter being used in surgery for diverticulitis, which is one of the diseases with the highest risk of ureteral injury.

Retrospective Comparison of mFOLFOXIRI With XELOX/SOX as Neoadjuvant Chemotherapy for Locally Advanced Rectal Cancer.

Background/aim: Neoadjuvant chemotherapy without radiation (NAC) shows favorable outcomes for locally advanced rectal cancer (LARC), however, the optimal regimen has not been determined yet. This study aimed to compare the efficacy and safety of oxaliplatin, irinotecan, folinic acid, and 5-fluorouracil (mFOLFOXIRI) with capecitabine/S-1 and oxaliplatin (XELOX/SOX) in rectal cancer patients.

Patients And Methods: We retrospectively examined patients with LARC who received mFOLFOXIRI or XELOX/SOX as NAC.

Closure of enterotomy after side-to-side ileocolic anastomosis with two barbed sutures in totally laparoscopic colectomy for right-sided colon cancer.

Good short-term outcomes of intracorporeal ileocolic anastomosis (IIA) in totally laparoscopic colectomy for right-sided colon cancer (TLRC) have been shown in many reports, but no standardized technique for enterotomy closure after stapled side-to-side ileocolic anastomosis has so far been established. We retrospectively compared the short-term outcomes between 13 consecutive patients receiving either TLRC with IIA by conventional enterotomy closure (n = 6) or closure of the enterotomy using two barbed sutures (CEBAS) (n = 7) from July 2019 to April 2020. No anastomotic bleeding or leakage was observed in either group.

Preventing anastomotic leakage after laparoscopic intersphincteric resection without a diverting stoma: "pull-through/reborn".

Introduction: Patients with very low rectal cancer who undergo intersphincteric resection (ISR) often experience anastomotic leakage (AL), even with a diverting stoma. The aim of this study was to introduce a technique for anastomosis after laparoscopic ISR to avoid AL.

Materials And Surgical Technique: In the first ISR procedure, the rectum was mobilized, the mesorectum was excised, and total, subtotal, or partial internal sphincter incision was performed transanally.

The Relationship Between the Number of Ports and Surgical Outcomes in Laparoscopic Hepatectomy.

Introduction: Reduced port surgery (RPS) has been garnering interest as a novel minimally invasive surgery lately.

Aim: The authors examined the relationship between the number of ports and surgical outcomes after laparoscopic hepatectomy (LH).

Materials And Methods: Between January 2012 and April 2019, 209 patients who underwent laparoscopic partial resection and lateral sectionectomy were retrospectively analyzed with respect to operative variables and surgical outcomes.

An In Vivo Mouse Model of Pelvic Recurrence of Human Colorectal Cancer.

Pelvic recurrence of colorectal cancer is a crucial problem because radical surgery can lead to excessive invasion. Novel therapeutic strategies are required instead of surgery. However, there are few suitable models because of the difficulty in transplanting and observing tumors in the pelvis.

Male sex and anterior wall tumor location as risk factors for urinary dysfunction after laparoscopic rectal surgery.

Background: Total mesorectal excision (TME) has decreased the local recurrence rate and improved the overall survival of rectal cancer patients. However, urinary dysfunction remains a clinical problem after rectal cancer surgery. The aim was to assess the risk factors for postoperative urinary dysfunction.

The Management of Recurrence within Six Months after Hepatic Resection for Colorectal Liver Metastasis.

Background: Hepatectomy is currently recommended as the most reliable treatment for colorectal liver metastases. However, the association between the choice of treatment for recurrence and the timing of recurrence remains controversial.

Methods: Two-hundred ninety-five patients who underwent hepatectomy were retrospectively analyzed for the risk factors and the outcomes for early recurrence within 6 months.

Delta-like 3 localizes to neuroendocrine cells and plays a pivotal role in gastrointestinal neuroendocrine malignancy.

Delta-like 3 (DLL3) is a member of the Delta/Serrate/Lag2 (DSL) group of Notch receptor ligands. Five DSL ligands are known in mammals, among which DLL3 has a unique structure. In the last few years, DLL3 has attracted attention as a novel molecular targeting gene in neuroendocrine carcinoma of the lung due to its high expression.

Laparoscopic Repeat Hepatic Resection for the Management of Liver Tumors.

Background: Laparoscopic hepatic resection has been developed as a minimally invasive surgery; however, laparoscopic repeat minor hepatic resection (LRH) carries a higher risk of damage to other organs because of postoperative changes to and losses of anatomical landmarks. The current standard approach at many facilities has been to perform open repeat minor hepatic resection (ORH). This paper describes the surgical outcomes, procedure safety, and utility of ORH versus LRH, as well as the laparoscopic techniques used in LRH.

Totally extraperitoneal approach to laparoscopic lateral lymph node dissection for patients with recurrent lateral pelvic lymph nodes after rectal cancer surgery: a novel technique-M TEP LLND.

Lateral lymph node dissection (LLND) for recurrence of lateral pelvic lymph node metastasis after rectal cancer surgery is technically demanding because of the need for re-do surgery. We herein report a novel technique of laparoscopic LLND via a totally extraperitoneal (TEP) approach. Since October 2018, we have performed LLND based on a TEP approach, called "M TEP LLND", with two cases treated.

Clinical impact of single-incision laparoscopic right hemicolectomy with intracorporeal resection for advanced colon cancer: propensity score matching analysis.

Background: Laparoscopic right hemicolectomy has become an acceptable treatment for right-sided colon cancer. Most centers use multiport laparoscopic right hemicolectomy extracorporeally (MRHE), whereas single-incision laparoscopic right hemicolectomy intracorporeally (SRHI) remains controversial. The aim of this study was to compare these two techniques using propensity score matching analysis.

The utility of the subcuticular suture in hepatic resection.

Aim Of The Study: Despite recent technical progress and advances in the perioperative management of liver surgery, postoperative surgical site infection (SSI) is still one of the most common complications that extends hospital stays and increases medical expenses following hepatic surgery.

Material And Methods: From 2001 to 2017 a total of 1180 patients who underwent hepatic resection for liver tumours were retrospectively analysed with respect to the predictive factor of superficial incisional SSI, using a propensity score matching by procedure (subcuticular or mattress suture).

Results: The incidence of superficial and deep incisional SSIs was found to be 7.