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Find video protocols related to scientific articles indexed in Pubmed.
Needlescopic surgery for left-sided colorectal cancer.
Int J Colorectal Dis
PUBLISHED: 08-10-2014
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Laparoscopic surgery has become the standard for colorectal cancers, but more minimally invasive surgery is continuously pursued. In June 2011, our institution started needlescopic surgery (NS). The aims of this study are to describe this technique and to investigate its feasibility for left-sided colorectal cancer surgery.
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Laparoscopic local excision and rectoanal anastomosis for rectal gastrointestinal stromal tumor: modified laparoscopic intersphincteric resection technique.
Dis. Colon Rectum
PUBLISHED: 06-06-2014
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Rectal GI stromal tumor is uncommon. Local excision with free resection margins provides adequate treatment, but extended surgery such as abdominoperineal resection has been frequently performed because of technical difficulties in the confined pelvic space.
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Histologic categorization of fibrotic cancer stroma in the primary tumor is an independent prognostic index in resectable colorectal liver metastasis.
Am. J. Surg. Pathol.
PUBLISHED: 05-17-2014
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Although the molecular mechanism of desmoplastic reaction (DR) for providing aggressive tumor characteristics is increasingly recognized, the prognostic role of DR has not been investigated in colorectal liver metastasis (CRLM). A pathologic review of 412 patients who underwent hepatectomy for CRLM at 2 independent institutions was conducted. DR in primary tumors was classified as mature, intermediate, or immature on the basis of the existence of keloid-like collagen and myxoid stroma-distinctive histologic products of extracellular matrix remodeling. With respect to DR, 137, 122, and 153 patients were classified as mature, intermediate, and immature, respectively. Immature DRs were associated with higher T and N stages, higher primary tumor grade, synchronous and larger size of liver metastasis, and extrahepatic disease (P?0.0001 to 0.002). DR significantly influenced the rate of recurrence in extrahepatic sites, including the lung, peritoneum, and local region in the primary tumor (P?0.0001 to 0.03), rather than the remnant liver. Five-year overall survival rates after hepatectomy were the highest in the mature group (58.9%), followed by intermediate (42.1%) and immature (26.7%) groups. A significant prognostic impact of DR was observed in subset analyses for institutions, primary tumor location, and timing and number of liver metastases. Multivariate analysis revealed that DR was an independent prognostic factor along with T stage of the primary tumor, size of liver metastasis, and extrahepatic disease. Characterizing DR in the primary tumor on the basis of histologic products of cancer-associated fibroblasts is valuable in evaluating prognostic outcome after hepatectomy in CRLM patients.
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Outcomes of laparoscopic surgery for colorectal cancer in oldest-old patients.
Surg Laparosc Endosc Percutan Tech
PUBLISHED: 04-09-2014
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The effect of laparoscopic colorectal surgery in oldest-old patients (85 y or older) is unclear. This study aimed to evaluate the short-term outcomes of laparoscopic colorectal cancer surgery compared with open surgery in the oldest-old.
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Feasibility and safety of laparoscopic surgery for metachronous colorectal cancer.
Surg. Today
PUBLISHED: 04-01-2014
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This study assessed the feasibility and safety of laparoscopic surgery for metachronous colorectal cancer in patients who had previously undergone surgery for primary colorectal cancer.
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Laparoscopic salvage surgery for locally recurrent rectal cancer.
J. Gastrointest. Surg.
PUBLISHED: 02-05-2014
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Surgical treatment for locally recurrent rectal cancer is challenging, and the value of laparoscopic surgery in such cases is unknown. The purpose of this study was to compare the feasibility of laparoscopic surgery with that of open surgery for locally recurrent rectal cancer.
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Laparoscopic Incisionless Stoma Creation for Patients With Colorectal Malignant Stricture.
Surg Laparosc Endosc Percutan Tech
PUBLISHED: 01-31-2014
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Minimally invasive techniques have been applied with increasing frequency to stoma creation. A recent focus in the field of minimally invasive surgery is laparoscopic single-site surgery. The aim of this study was to assess whether this procedure is a feasible option compared with other techniques of stoma creation.
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Laparoscopic abdominosacral resection for locally advanced primary rectal cancer after treatment with mFOLFOX6 plus bevacizumab, followed by preoperative chemoradiotherapy.
Asian J Endosc Surg
PUBLISHED: 01-24-2014
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Abdominosacral resection may be the only curative procedure for locally advanced rectal cancer involving the presacral fascia or sacrum. Multimodal therapy might be necessary to prevent local and distant recurrence for such tumors. A 67-year-old man was diagnosed with locally advanced rectal cancer widely involving the right pelvic sidewall and presacral fascia near the S4/5 junction on the right posterolateral side. We performed laparoscopic abdominosacral resection (S4/5) with en bloc right lateral lymph node dissection and seminal vesicle resection to obtain a clear resection margin after systemic chemotherapy with mFOLFOX6 (oxaliplatin, leucovorin, and 5-fluorouracil) plus bevacizumab, followed by preoperative chemoradiotherapy. The total operative time was 660?min, and the estimated blood loss was 550?mL. The final pathological findings revealed no residual cancer cells (pathological complete response). Laparoscopic abdominosacral resection appears to be safe and feasible in selected patients.
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New technique of en bloc resection of colorectal tumor using laparoscopy and endoscopy cooperatively (laparoscopy and endoscopy cooperative surgery - colorectal).
Dis. Colon Rectum
PUBLISHED: 01-10-2014
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Various factors make complete en bloc resection by endoscopic techniques alone of some laterally spreading colorectal tumors difficult or unsafe. Drawing on recent radical developments in endoscopic and laparoscopic techniques for managing colorectal lesions, we aimed to develop a safe resection procedure by using a combination of laparoscopy and endoscopy. We have named this procedure laparoscopic endoscopic cooperative colorectal surgery.
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Resolution upgrade toward 6-bit optical quantization using power-to-wavelength conversion for photonic analog-to-digital conversion.
Opt Lett
PUBLISHED: 12-11-2013
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We demonstrate a resolution upgrade toward 6 bit optical quantization using a power-to-wavelength conversion without an increment of system parallelism. Expansion of a full-scale input range is employed in conjunction with reduction of a quantization step size with keeping a sampling-rate transparency characteristic over several 100??sGS/s. The effective number of bits is estimated to 5.74 bit, and the integral nonlinearity error and differential nonlinearity error are estimated to less than 1 least significant bit.
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Laparoscopic sphincter-preserving surgery (intersphincteric resection) after neoadjuvant imatinib treatment for gastrointestinal stromal tumor (GIST) of the rectum.
Int J Colorectal Dis
PUBLISHED: 08-29-2013
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Gastrointestinal stromal tumors (GISTs) of the rectum are rarely found, and radical surgery such as abdominoperineal resection would be necessary for large rectal GIST. On the other hand, therapy for GIST has changed significantly with the use of imatinib. Neoadjuvant imatinib therapy may reduce tumor size and may potentially prevent extended surgery. Moreover, when sphincter-preserving surgery is carried out laparoscopically, it can be performed as minimally invasive surgery with preservation of the anus.
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Laparoscopic total pelvic exenteration with en bloc lateral lymph node dissection after neoadjuvant chemoradiotherapy for advanced primary rectal cancer.
Asian J Endosc Surg
PUBLISHED: 04-05-2013
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Total pelvic exenteration (TPE) may be the only procedure that can cure T4 rectal cancer that directly invades the urinary bladder or prostate. Here, we describe our experience of laparoscopic TPE with en bloc lateral lymph node dissection for advanced primary rectal cancer. A 62-year-old man diagnosed with advanced lower rectal cancer (T4bN0M0) underwent laparoscopic TPE with en bloc lateral lymph node dissection after neoadjuvant chemoradiotherapy. Ligation of the dorsal vein complex was performed under direct visualization through the perineal approach, and the large perineal defect was reconstructed using bilateral V-Y advancement of the gluteus maximus musculocutaneous flaps. The ileal conduit was constructed extracorporeally through an extended umbilical port that was extended to 4?cm. The total operative time was 831?min and estimated blood loss was 600?mL. Laparoscopic TPE appears to be safe and feasible in selected patients.
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Selective lateral pelvic lymph node dissection in patients with advanced low rectal cancer treated with preoperative chemoradiotherapy based on pretreatment imaging.
Ann. Surg. Oncol.
PUBLISHED: 02-18-2013
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The significance of lateral pelvic lymph node (LPLN) metastasis in advanced low rectal cancer treated with preoperative chemoradiotherapy (CRT) remains unclear. The objective of this study was to evaluate the outcomes of selective LPLN dissection (LPLD) based on the pretreatment imaging in patients with advanced low rectal cancer treated with preoperative CRT.
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Laparoscopic versus open multivisceral resection for primary colorectal cancer: comparison of perioperative outcomes.
J. Gastrointest. Surg.
PUBLISHED: 02-04-2013
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The role of laparoscopic surgery for locally advanced colorectal cancer invading or adhering to neighboring organs is controversial. This study evaluated the safety and feasibility of laparoscopic multivisceral resection for colorectal cancer.
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Gene expression of mesenchyme forkhead 1 (FOXC2) significantly correlates with the degree of lymph node metastasis in colorectal cancer.
Int Surg
PUBLISHED: 12-08-2011
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In stage III colorectal cancer, patients with N1 stage tumors show poorer outcome than patients with N2 stage tumors. Our objective was to identify genes that are predictive for the presence of lymph node metastasis, and to characterize the aggressiveness of lymph node metastases. Gene expression profiles of colorectal cancer were determined by microarray in training (n = 116) and test (n = 25) sets of patients. We identified 40 discriminating probes in patients with and without lymph node metastases. Using these probes, we could predict the presence of lymph node metastasis with an accuracy of 87.1% (training set) and 76.0% (test set). Among discriminating probes, FOXC2 expression was significantly correlated with the degree of lymph node metastasis. FOXC2 was expressed significantly and disparately in patients with N1 and N2 stage tumors as analyzed by real-time reverse transcriptase-polymerase chain reaction. FOXC2 appears to be involved in determining the aggressiveness of lymph node metastasis in colorectal cancer.
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Colon cancer in the splenic flexure: comparison of short-term outcomes of laparoscopic and open colectomy.
Surg Laparosc Endosc Percutan Tech
PUBLISHED: 12-08-2011
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Laparoscopic surgery for colon cancer in the splenic flexure (SF cancer) is technically demanding and has not been evaluated in randomized clinical trials. This study aimed to evaluate the safety and feasibility of laparoscopic surgery for SF cancer.
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Effect of body mass index on short-term outcomes of patients undergoing laparoscopic resection for colorectal cancer: a single institution experience in Japan.
Surg Laparosc Endosc Percutan Tech
PUBLISHED: 12-08-2011
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The impact of body mass index (BMI) on laparoscopic surgery for colorectal cancer in Asian countries is unclear, partly because obesity is less common in Asia than in western countries. The purpose of this study was to evaluate the association between BMI and short-term outcomes after laparoscopic resection for colorectal cancer in Japanese patients.
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Total mesorectal excision of initially unresectable locally advanced rectal cancer infiltrating the pelvic wall after treatment with FOLFOX4 plus bevacizumab and preoperative chemoradiation: report of a case.
Surg. Today
PUBLISHED: 11-12-2011
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A 60-year-old man underwent sigmoid loop colostomy for obstructive rectal cancer. Computed tomography (CT) showed a circumferential thickening of the lower rectal wall caused by a tumor invading the posterior and side pelvic wall. As we considered R0 resection too difficult, we gave the patient bevacizumab plus FOLFOX4 (oxaliplatin, leucovorin, and 5-fluorouracil). After eight courses, CT showed improvement in the rectal wall thickening but linear thickening of the mesorectal fascia remained. We therefore gave the patient chemoradiotherapy (CRT), and then 10 weeks later performed Hartmanns operation laparoscopically. Microscopic examination revealed that the tumor had been almost replaced by fibrous tissue, with only a few cancer cells left in the subserosa. The circumferential resection margin was free of cancer cells. The patient is doing well after 27 months of follow-up. This case suggests that systemic chemotherapy with FOLFOX4 plus bevacizumab prior to conventional preoperative CRT is a promising strategy for patients with initially unresectable locally advanced rectal cancer.
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Five-bit parallel operation of optical quantization and coding for photonic analog-to-digital conversion.
Opt Express
PUBLISHED: 09-22-2011
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We report the attempt of optical quantization and coding in 5-bit parallel format for photonic A/D conversion. The proposed system is designed to realize generation of 32 different optical codes in proportion to the corresponding signal levels when fed a certain range of amplitude-varied input pulses to the setup. Optical coding in a bit-parallel format made it possible, that provides 5 bit optical codes from 32 optical quantized pulses. The 5-bit parallel operation of an optical quantization and coding module with 5 multi-ports was tested in our experimental setup.
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Incidence of and risk factors for anastomotic leakage after laparoscopic anterior resection with intracorporeal rectal transection and double-stapling technique anastomosis for rectal cancer.
Am. J. Surg.
PUBLISHED: 08-30-2011
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Laparoscopic rectal cancer surgery involving rectal division with intracorporeal stapling devices is technically difficult. This study aimed to identify risk factors for anastomotic leakage associated with laparoscopic anterior resection for rectal cancer.
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Gene expression signature and response to the use of leucovorin, fluorouracil and oxaliplatin in colorectal cancer patients.
Clin Transl Oncol
PUBLISHED: 06-18-2011
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FOLFOX (a combination of leucovorin, fluorouracil and oxaliplatin) has achieved substantial success in the treatment of colorectal cancer (CRC) patients. However, about half of all patients show resistance to this regimen and some develop adverse symptoms such as neurotoxicity. In order to select patients who would benefit most from this therapy, we aimed to build a predictor for the response to FOLFOX using microarray gene expression profiles of primary CRC samples.
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Ulcerative colitis-associated colorectal cancer shows a poorer survival than sporadic colorectal cancer: a nationwide Japanese study.
Inflamm. Bowel Dis.
PUBLISHED: 06-01-2011
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The clinicopathological features of ulcerative colitis-associated colorectal cancer (UC-CRC) have not yet been fully clarified, especially in Asian populations. This study aimed to clarify the prognosis and clinicopathological features of UC-CRC in comparison with sporadic CRC in the Japanese population.
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RUNX3 copy number predicts the development of UC-associated colorectal cancer.
Int. J. Oncol.
PUBLISHED: 05-25-2011
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RUNX3 is a tumour suppressor gene that plays an important role in the development of various cancers. The present study aimed to compare RUNX3 mRNA expression levels and DNA copy numbers in the non-neoplastic rectal mucosa between ulcerative colitis (UC) patients with and without UC-associated colorectal cancer (UC-Ca). We further aimed to build a predictive model of the development of UC-Ca based on the RUNX3 DNA copy number. RUNX3 mRNA expression levels were quantified by RT-PCR. The hypermethylation and DNA copy number of RUNX3 were also determined. Thirty-five UC patients were examined, 17 of whom had UC-Ca (UC-Ca group) and 18 who did not (UC-NonCa group). The UC-Ca group had significantly lower mRUNX3 expression levels and smaller DNA copy numbers than the UC-NonCa group (p=0.04, p=0.0016, respectively). RUNX3 expression levels correlated with DNA copy numbers. Classification of the UC-Ca and UC-NonCa group based on DNA copy number gave an accuracy of 82.9%. RUNX3 expression levels in the non-neoplastic rectal mucosa was significantly decreased in the UC-Ca group and it is suggested that this was attributable to the decrease in RUNX3 DNA copy number. The present predictive model may be useful in the selection of high risk UC-Ca patients and to improve the efficacy of surveillance colonoscopy. The present study suggests that RUNX3 might play an important role in the development of UC-Ca.
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Predicting ulcerative colitis-associated colorectal cancer using reverse-transcription polymerase chain reaction analysis.
Clin Colorectal Cancer
PUBLISHED: 04-22-2011
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Widespread genetic alterations are present not only in ulcerative colitis (UC)-associated neoplastic lesions but also in the adjacent normal colonic mucosa. This suggests that genetic changes in nonneoplastic mucosa might be effective markers for predicting the development of UC-associated cancer (UC-Ca). This study aimed to build a predictive model for the development of UC-Ca based on gene expression levels measured by reverse-transcription polymerase chain reaction (RT-PCR) analysis in nonneoplastic rectal mucosa.
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Multimedia article. Lateral lymph node dissection with preoperative chemoradiation for locally advanced lower rectal cancer through a laparoscopic approach.
Surg Endosc
PUBLISHED: 02-07-2011
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Lateral lymph node (LLN) dissection contributes to a decrease in local recurrence and prolongs survival in locally advanced lower rectal cancer patients as compared with total mesorectal excision (TME) alone [1, 2]. However, this procedure is also accompanied by increased bleeding and postoperative complications [3, 4]. Recently, laparoscopic TME has become a safe and feasible approach for lower rectal cancer even after preoperative chemoradiation [5-7]. Laparoscopic LLN dissection could be the next promising approach and could not only provide a survival benefit but also minimize bleeding and postoperative complications with enhanced visualization, as reported in gynecological and urological malignancies [8, 9].
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Complications of loop ileostomy closure in patients with rectal tumor.
World J Surg
PUBLISHED: 04-08-2010
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Loop ileostomy is customary after very low rectal anastomosis to reduce the rate of pelvic sepsis that can result from anastomotic leakage. To evaluate complications of stoma closure is important to maximize the benefit of making the defunctioning stoma. The aim of this study was to examine possible risk factors associated with complications, especially wound infections, after loop ileostomy closure in patients with rectal tumor.
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Factors affecting difficulty of laparoscopic surgery for left-sided colon cancer.
Surg Endosc
PUBLISHED: 03-19-2010
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Laparoscopic colon resection for left-sided colon cancer is being performed with increasing frequency worldwide. The purpose of this study is to evaluate the influence of patient- and procedure-related factors on difficulty of laparoscopic surgery for left-sided colon cancer.
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Learning curve for standardized laparoscopic surgery for colorectal cancer under supervision: a single-center experience.
Surg Endosc
PUBLISHED: 03-10-2010
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Laparoscopic resection for colorectal cancer is increasingly being performed worldwide. Although learning standardized procedures under the supervision of an experienced surgeon may be effective, there is currently no information on the learning curve under such circumstances. This single-center study aimed to evaluate the learning curve for laparoscopic resection for colorectal cancer of one surgical fellow with no previous experience with laparoscopic colectomy.
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Treatment of colorectal carcinoids: A new paradigm.
World J Gastrointest Surg
PUBLISHED: 03-02-2010
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It is often difficult to evaluate the grade of malignancy and choose an appropriate treatment for colorectal carcinoids in clinical settings. Although tumor size and depth of invasion are evidently not enough to stratify the risk of this rare tumor, the present guidelines or staging systems do not mention other clinicopathological variables. Recent studies, however, have shed light on the impact of lymphovascular invasion on the outcome of colorectal carcinoids. It has been revealed that the presence of lymphovascular invasion was among the strongest risk factors for metastasis along with tumor size and depth of invasion. Furthermore, tumors smaller than 1 cm, within submucosal invasion and without lymphovascular invasion, carry minimal risk for metastasis with 100% 5-year survival in the studies from Japan as well as from the USA. This would suggest that these tumors could be curatively treated by endoscopic resection or transanal local excision. On the other hand, colorectal carcinoids with either lymphovascular invasion or tumor size larger than 1 cm carry the risk for metastasis equivalent to adenocarcinomas. Therefore, it should be emphasized that histological examination of lymphovascular invasion is mandatory in the specimens obtained by endoscopic resection or transanal local excision, as this would provide useful information for determining the need for additional radical surgery with regional lymph node dissection. Although the present guidelines or TNM staging system do not mention the impact of lymphovascular invasion, this would be among the next promising targets in order to establish better guidelines and staging systems, particularly in early-stage colorectal carcinoids.
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Prognostic factors for survival after salvage surgery for locoregional recurrence of colon cancer.
Am. J. Surg.
PUBLISHED: 02-25-2010
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Although locoregional recurrence after rectal cancer resection has been extensively investigated, studies of salvage surgery for locoregionally recurrent colon cancer are scarce. This study aimed to determine the predictors of postsalvage survival for locoregionally recurrent colon cancer.
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Prediction of liver metastasis after colorectal cancer using reverse transcription-polymerase chain reaction analysis of 10 genes.
Eur. J. Cancer
PUBLISHED: 02-08-2010
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Liver metastasis is one of the major types of recurrence after surgery for colorectal cancer. Traditional methods of predicting liver metastasis are limited in their accuracy, suggesting the need to develop new predictors. We developed a 10-gene signature that is closely associated with the development of liver metastasis after colorectal cancer.
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Safety and feasibility of laparoscopic intersphincteric resection for very low rectal cancer.
J. Gastrointest. Surg.
PUBLISHED: 01-22-2010
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Laparoscopic surgery has been reported to be one of the approaches for total mesorectal excision (TME) in rectal cancer surgery. Intersphincteric resection (ISR) has been reported as a promising method for sphincter-preserving operation in selected patients with very low rectal cancer.
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Short-term outcomes of laparoscopic colectomy for transverse colon cancer.
J. Gastrointest. Surg.
PUBLISHED: 01-07-2010
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The role of laparoscopic surgery for transverse colon cancer (TCC) remains controversial. This study aimed to evaluate the safety of laparoscopic resection of TCC.
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Preoperative chemoradiation and extended pelvic lymphadenectomy for rectal cancer: Two distinct principles.
World J Gastrointest Surg
PUBLISHED: 01-04-2010
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Extended pelvic lymphadenectomy (EPL) with total mesorectal excision (TME) has been reported to provide oncological benefit in lower rectal cancer in Japan. In Western countries EPL is not widely accepted because of frequent morbidity but instead preoperative chemoradiation (CRT) followed by TME has been established as a standard treatment for decreasing local recurrence. Recently, several studies have focused on the comparison between these two distinct therapeutic approaches in Western countries and Japan. A study comparing Dutch trial data and Japanese data revealed that EPL and RT are almost equivalent in decreasing local recurrence in lower rectal cancer as compared with TME alone. Considering that almost 45% survival can be achieved by EPL even in the presence of metastatic lateral lymph nodes (LLNs), EPL performed by experienced surgeons definitely contributes to decrease local recurrence. On the other hand, a randomized controlled trial in Japan that compared EPL with conventional TME following preoperative RT revealed that EPL is associated with a higher frequency of sexual and urinary dysfunction without oncological benefits in the presence of preoperative RT. On this point, preoperative CRT followed by conventional TME without EPL would be a better therapeutic approach in patients without evident metastatic LLNs. For future treatment, it would be desirable to have a narrower indication for EPL using full advantage of recent improvement in image diagnosis. Although objective comparison of these two principles between Japan and the West is difficult due to differences in patient groups, further studies would lead to the next great step towards future improvement in treating lower rectal cancer.
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Laparoscopic rectal resection for primary rectal cancer combined with open upper major abdominal surgery: initial experience.
Hepatogastroenterology
PUBLISHED: 07-23-2009
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Although laparoscopy is accepted for treatment of colon cancer, its use for rectal cancer still has technical limitations. Whether a laparoscopic approach for rectal cancer is safe and beneficial remains unknown when simultaneous open upper major abdominal surgery is planned.
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Safety of laparoscopic total mesorectal excision for low rectal cancer with preoperative chemoradiation therapy.
J. Gastrointest. Surg.
PUBLISHED: 06-26-2009
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Total mesorectal excision (TME) with preoperative chemoradiation therapy is an accepted standard treatment for low rectal cancer. Although the laparoscopic approach is accepted for the treatment of colon cancer, its value for low rectal cancer is unknown. The purpose of this study was to evaluate whether preoperative chemoradiation therapy exerted an adverse influence on laparoscopic TME for low rectal cancer.
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Simultaneous resection of colorectal cancer and synchronous liver metastases: initial experience of laparoscopy for colorectal cancer resection.
Dig Surg
PUBLISHED: 05-29-2009
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Although laparoscopy is accepted for treatment of colorectal cancer, there is no established consensus for its use when resection of synchronous liver metastases is performed simultaneously. The purpose of this study was to evaluate whether laparoscopic colorectal resection with simultaneous resection of synchronous liver metastases was technically feasible and whether it may be a therapeutic option.
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Gene expression signature for recurrence in stage III colorectal cancers.
Cancer
PUBLISHED: 03-19-2009
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Colorectal cancer patients with lymph node metastases (stage III) show poorer prognosis than those without. Predicting development of recurrence may guide the need for intensive follow-up and/or adjuvant chemotherapy in such patients. The authors objective was to identify a set of discriminating genes that could predict recurrence in stage III colorectal cancer.
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Simultaneous amplitude and phase modulation by a discrete phase-only filter.
Opt Lett
PUBLISHED: 03-03-2009
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We propose a simultaneous amplitude and phase modulation method by a discrete phase-only filter. The proposed amplitude-phase filter can be realized by a discrete phase modulation of the diffractive optical element as well as a continuous phase modulation of the liquid crystal spatial light modulator. The fabricated amplitude-phase filter that has the six phase modulation levels shows a transfer efficiency of 75% regardless of the polarization state of the incident light. By using the proposed amplitude-phase filter, we demonstrate a temporal waveform conversion from sech(2) to super-Gaussian, which requires both amplitude and phase modulations.
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Short-term outcomes of laparoscopic rectal surgery for primary rectal cancer in elderly patients: is it safe and beneficial?
J. Gastrointest. Surg.
PUBLISHED: 02-22-2009
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The role of laparoscopic resection in management of rectal cancer is still controversial. The purpose of this study was to evaluate whether laparoscopic rectal resection for rectal cancer could be safely performed in elderly patients.
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Factors affecting the difficulty of laparoscopic total mesorectal excision with double stapling technique anastomosis for low rectal cancer.
Surgery
PUBLISHED: 01-20-2009
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Although the laparoscopic approach is accepted for the treatment of colon cancer, its value for low rectal cancer is unknown. The purpose of this study was to evaluate the influence of patient and tumor factors, particularly pelvic dimensions, on the difficulties in laparoscopic total mesorectal excision (TME) for low rectal cancer.
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[A case of transverse colon cancer with multiple liver metastases and hepatic pedicle lymph node involvement showing pathological complete response by XELOX plus bevacizumab].
Gan To Kagaku Ryoho
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A 70-year-old woman was referred to our hospital because of abdominal pain. Abdominal computed tomography(CT)and colonoscopy revealed transverse colon cancer with multiple liver metastases, with involvement of the hepatic pedicle and superior mesenteric artery lymph nodes. The patient received eight courses of XELOX plus bevacizumab, and CT showed a decrease in the size of the liver metastases and hepatic pedicle lymphadenopathy. Right hemicolectomy, partial hepatectomy, and hepatic pedicle lymph node resection were performed. Histopathological examination of the resected tissue revealed no residual cancer cells, suggesting a pathological complete response. The patient remains well 7 months after operation, without any signs of recurrence. Surgical resection should be considered for patients with initially unresectable colon cancer with liver metastases and hepatic pedicle lymph nodes involvement if systemic chemotherapy is effective.
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Impact of previous hepatectomy on short-term outcomes of repeat hepatectomy for liver tumors with a special concern of operative time.
Hepatogastroenterology
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Repeat hepatectomy is widely accepted as a treatment for primary or metastatic liver malignancy. However, it entails a longer operative time and is associated with additional operative risks. The goal of the present study was to evaluate the impact of previous hepatectomy on the short-term outcomes of repeat hepatectomy, especially in operative time.
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What is Visualize?

JoVE Visualize is a tool created to match the last 5 years of PubMed publications to methods in JoVE's video library.

How does it work?

We use abstracts found on PubMed and match them to JoVE videos to create a list of 10 to 30 related methods videos.

Video X seems to be unrelated to Abstract Y...

In developing our video relationships, we compare around 5 million PubMed articles to our library of over 4,500 methods videos. In some cases the language used in the PubMed abstracts makes matching that content to a JoVE video difficult. In other cases, there happens not to be any content in our video library that is relevant to the topic of a given abstract. In these cases, our algorithms are trying their best to display videos with relevant content, which can sometimes result in matched videos with only a slight relation.