PURPOSE: Anastomotic leakage following low anterior resection (LAR) for rectal cancer is a serious complication that increases morbidity and mortality rates. Transanal tube placement may reduce postoperative anastomotic leakage rate by reducing intraluminal pressure and preventing fecal extrusion through the staple line. This meta-analysis evaluated the effectiveness of transanal tube placement to prevent anastomotic leakage after LAR for rectal cancer using a stapling technique. METHODS: A systematic review of the literature was consistent with the recommendations of the PRISMA (preferred reporting items for systematic reviews and meta-analyses) statement. Multiple comprehensive databases, including PubMed, Embase, Cochrane Library and KoreaMed, were searched. The main study outcomes were anastomotic leakage. RESULTS: Two randomized clinical trials and 4 nonrandomized studies involving 1,118 patients were included. Subgroup analyses of randomized clinical trials found that transanal tube placement had no effect on study outcomes. Meta-analysis of nonrandomized studies showed that transanal tube placement was associated with a lower incidence of anastomotic leakage (relative risk, 0.32; 95% CI, 0.15-0.67; I2 = 0%). CONCLUSION: Transanal tube placement may be effective in preventing or reducing the occurrence of anastomotic leakage after LAR for rectal cancer using a stapling technique. Randomized clinical trials with sufficient power are needed to confirm the benefit of transanal tube placement.
Anastomotic Leak* ; Colorectal Neoplasms ; Colorectal Surgery ; Humans ; Incidence ; Mortality ; Rectal Neoplasms*

INTRODUCTIONMetastatic disease to the liver in colorectal cancer is a common entity that may present synchronously or metachronously. While increasing surgical experience has improved survival outcomes, some evidence suggest that synchronous lesions should be managed differently. This review aims to update current literature on differences between the outcomes and management of synchronous and metachronous disease.

MATERIALS AND METHODSSystematic review of MEDLINE database up till November 2008.

RESULTSDiscrete differences in tumour biology have been identified in separate studies. Twenty-one articles comparing outcomes were reviewed. Definitions of metachronicity varied from anytime after primary tumour evaluation to 1 year after surgery for primary tumour. Most studies reported that synchronous lesions were associated with poorer survival rates (8% to 16% reduction over 5 years). Sixteen articles comparing combined vs staged resections for synchronous tumour showed comparable morbidity and mortality. Benefits over staged resections included shorter hospital stays and earlier initiation of chemotherapy. Suitability for combined resection depended on patient age and constitution, primary tumour characteristics, size and the number of liver metastases, and the extent of liver involvement.

CONCLUSIONSSurgery remains the only treatment option that offers a chance of long-term survival for patients amenable to curative resection. Synchronicity suggests more aggressive disease although a unifying theory for biological differences explaining the disparity in tumour behaviour has not been found. Combined resection of primary tumour and synchronous metastases is a viable option pending careful patient selection and institutional experience. Given the current evidence, management of synchronous and metachronous colorectal liver metastases needs to be individualised to the needs of each patient.

Biomarkers, Tumor ; Colorectal Neoplasms ; mortality ; pathology ; surgery ; Humans ; Liver Neoplasms ; mortality ; secondary ; surgery ; Neoplasms, Multiple Primary ; mortality ; pathology ; surgery ; Neoplasms, Second Primary ; mortality ; pathology ; surgery ; Prognosis

OBJECTIVETo evaluate the survival rate after pulmonary resection for metastatic colorectal cancer(CRC).

METHODSClinical data of 77 patients with pulmonary metastasis from CRC between January 2005 and October 2008 in the Zhongshan Hospital, Fudan University were retrospectively analyzed.

RESULTSThere were 38 patients with synchronous pulmonary metastasis, of whom 2 underwent resection for pulmonary metastasis. The median survival time of two groups was 25 months and 18 months, which was not significantly different (P=0.33). There were 39 cases of metachronous pulmonary metastasis, of whom 28 received pulmonary metastasis resection. The 1-year and 3-year survival rates of 2 groups were 93.3% and 58.5%, and 38.8% and 19.1%, respectively. The median survival time of two groups was 26.7 months and 8 months, and the difference was statistically significant (P=0.004).

CONCLUSIONSurgical resection can improve the survival rate in patients with pulmonary metastasis from colorectal cancer.

Colorectal Neoplasms ; mortality ; pathology ; surgery ; Female ; Humans ; Lung Neoplasms ; mortality ; secondary ; surgery ; Middle Aged ; Neoplasm Metastasis ; Retrospective Studies ; Treatment Outcome

PURPOSE: Emergency colorectal surgery has high rates of complications and mortality because of incomplete bowel preparation and bacterial contamination. The authors aimed to evaluate the surgical outcomes and the risk factors for the mortality and the complication rates of patients who underwent emergency surgery to treat colorectal diseases. METHODS: This is a prospective study from January 2014 to April 2016, and the results are based on a retrospective analysis of the clinical results for patients who underwent emergency colorectal surgery at Chosun University Hospital. RESULTS: A total of 99 patients underwent emergency colorectal surgery during the study period. The most frequent indication of surgery was perforation (75.8%). The causes of disease were colorectal cancer (19.2%), complicated diverticulitis (21.2%), and ischemia (27.2%). There were 27 mortalities (27.3%). The major morbidity was 39.5%. Preoperative hypotension and perioperative blood transfusion were independent risk factors for both morbidity and mortality. CONCLUSION: These results revealed that emergency colorectal surgeries are associated with significant morbidity and mortality. Furthermore, the independent risk factors for both morbidity and mortality in such patiients were preoperative hypotension and perioperative transfusion.
Blood Transfusion ; Colorectal Neoplasms ; Colorectal Surgery* ; Diverticulitis ; Emergencies* ; Humans ; Hypotension ; Ischemia ; Mortality ; Prospective Studies ; Retrospective Studies ; Risk Factors*

PURPOSE: The aim of this study is to assess the safety and the efficacy of laparoscopic colorectal surgery compared to those of conventional open surgery and to determine the feasibility of laparoscopic colorectal surgery based on oncologic principles. METHODS: From March 2001 to January 2002, 27 consecutive patients were assessed for the possible use of laparoscopic surgery. Thirty patients were included in the open group. Forty-seven patients were included in the laparoscopic group. The decision regarding the suitability of a patient for the procedure was made by the surgeon. RESULTS: Laparoscopic surgery was attempted on 47 patients, and in 31 patients, it was completed successfully. Patients who underwent laparoscopic surgery required a smaller dose of analgesics and had an earlier bowel passage recovery and shorter hospital stay than patients who underwent open surgery. The mean operation times for the open group, the conversion group, and the laparoscopic group were 252 min, 269 min, and 272 min respectively (P>0.05). There was no difference in the number of lymph nodes dissected nor the length of the distal margin of the resected bowel in the case of anterior resection and low anterior resection of the laparoscopic group compared to the open and the conversion groups (P>0.05). Complications in the laparoscopic surgery group were anastomosis site leakage and bowel obstruction. In the open group, wound infection, urinary retention, anastomosis site leakage and bowel obstruction were found. The morbidities of the open group, the conversion group, and the laparoscopic group were 23.3%, 37.5%, and 12.9%, respectively. One mortality was observed in the conversion group. CONCLUSIONS: In this study, there is no evidence that the laparoscopic technique is inadequate for following the cancer surgery principle, So laparoscopic colorectal surgery is a safe and feasible treatment. The overall morbidity and mortality in this study were acceptable. Sufficient lymph node dissection and distal margin of the resected bowel were accomplished with laparoscopic surgery. Further long-term follow up, however, will be necessary to confirm the value of this technique.
Analgesics ; Colorectal Neoplasms ; Colorectal Surgery* ; Humans ; Laparoscopy ; Length of Stay ; Lymph Node Excision ; Lymph Nodes ; Mortality ; Urinary Retention ; Wound Infection

PURPOSE: The aim of this study is to investigate the impact of age on short-term outcomes after colorectal surgery in terms of the 30-day postoperative morbidity and mortality rates. METHODS: The subjects for the study were patients who had undergone colorectal surgery. Patients were divided into 2 groups according to age; groups A and B patients were ≥80 and <80 years old of age, respectively. Both groups were manually matched for body mass index, American Society of Anesthesiologists score, Charlson Comorbidity Index and procedure performed. RESULTS: A total of 200 patients, 91 men (45.5%) and 109 women (54.5%), were included in this retrospective study. These patients were equally divided into 2 groups. The mean ages were 85 years in group A (range, 80 to 104 years) and 55.3 years in group B (range, 13 to 79 years). The overall 30-day postoperative mortality rate was 1% of total 200 patients; both of these 2 patients were in group A. However, this observation had no statistical significance. No intraoperative complications were encountered in either group. The overall 30-day postoperative morbidity rate was 27% (54 of 200) for both groups. The 30-day postoperative morbidity rates in groups A and B were 28% (28 of 100) and 26% (26 of 100), respectively. However, these differences between the groups had no statistical significance importance. CONCLUSION: Age alone should not be considered to be more of a contraindication or a worse predictor than other factors for the outcome after colorectal surgery on elderly patients.
Aged* ; Body Mass Index ; Colorectal Neoplasms ; Colorectal Surgery* ; Comorbidity ; Female ; Humans ; Intraoperative Complications ; Male ; Mortality ; Retrospective Studies

Colectomy ; methods ; Colorectal Neoplasms ; mortality ; pathology ; surgery ; Humans ; Laparoscopy ; Treatment Outcome

OBJECTIVETo investigate the therapeutic principles and prognosis of synchronous primary colorectal carcinomas (SCC).

METHODSThe data of 66 SCC patients surgically treated from 1984 to 2003 were retrospectively reviewed.

RESULTSThe synchronous primary colorectal carcinomas were diagnosed and resected simultaneously in 65 patients except one that was misdiagnosed. Thirty patients underwent combined resection, 35 patients segmental resection. Sixty-two patients received radical resection, while three patients had palliative resection due to hepatic metastasis. The overall postoperative 3-, 5-, 10-year survival rates were 70.3%, 60.0%, 40.6%, respectively. In the patients who had simultaneous radical resection, the 3-, 5-, 10-year survival rates were 76.0%, 65.9%, 46.4% respectively.

CONCLUSIONThe extent of resection should be individually determined by the lesion location, extent and distance between the lesions, as well as the patient's general condition. More extensive bowel resection, such as total or subtotal colectomy are suggested for those patients with hereditary nonpolyposis colorectal carcinoma syndrome in order to reduce or avoid the risk of metachronous colorectal carcinoma. The postoperative survival in patients with synchronous primary colorectal carcinoma is similar to those with solitary lesion.

Adult ; Aged ; Colorectal Neoplasms ; mortality ; pathology ; surgery ; Colorectal Neoplasms, Hereditary Nonpolyposis ; genetics ; surgery ; Female ; Humans ; Male ; Middle Aged ; Neoplasms, Multiple Primary ; genetics ; surgery ; Ovarian Neoplasms ; surgery ; Prognosis ; Stomach Neoplasms ; surgery ; Survival Rate

BACKGROUNDThe liver is the most common site for colorectal cancer (CRC) metastases. Their removal is a critical and challenging aspect of CRC treatment. We investigated the prognosis and risk factors of patients with CRC and liver metastases (CRCLM) who underwent simultaneous resections for both lesions.

METHODSFrom January 2009 to August 2016, 102 patients with CRCLM received simultaneous resections of CRCLM at our hospital. We retrospectively analyzed their clinical data and analyzed their outcomes. Overall survival (OS) and disease-free survival (DFS) were examined by Kaplan-Meier and log-rank methods.

RESULTSMedian follow-up time was 22.7 months; no perioperative death or serious complications were observed. Median OS was 55.5 months; postoperative OS rates were 1-year: 93.8%, 3-year: 60.7%, and 5-year: 46.4%. Median DFS was 9.0 months; postoperative DFS rates were 1-year: 43.1%, 3-year: 23.0%, and 5-year 21.1%. Independent risk factors found in multivariate analysis included carcinoembryonic antigen ≥100 ng/ml, no adjuvant chemotherapy, tumor thrombus in liver metastases, and bilobar liver metastases for OS; age ≥60 years, no adjuvant chemotherapy, multiple metastases, and largest diameter ≥3 cm for DFS.

CONCLUSIONSSimultaneous surgical resection is a safe and effective treatment for patients with synchronous CRCLM. The main prognostic factors are pathological characteristics of liver metastases and whether standard adjuvant chemotherapy is performed.

Adult ; Aged ; Colorectal Neoplasms ; complications ; mortality ; surgery ; Disease-Free Survival ; Female ; Hepatectomy ; Humans ; Liver Neoplasms ; mortality ; secondary ; surgery ; Male ; Middle Aged ; Prognosis ; Retrospective Studies ; Treatment Outcome

OBJECTIVETo elucidate the efficacy and probable prognostic factors of surgical resection of pulmonary metastasis from colorectal cancer.

METHODSClinical data and outcomes of 35 colorectal patients with pulmonary metastasis undergone pulmonary metastasectomy were analyzed retrospectively.

RESULTSMedian follow-up time was 48.0 months. The median overall survival time was 36.0 months. Five-year survival rate was 33.0%. Nineteen patients died of tumor progression. Sixteen patients were survival including survival with tumor (10 cases) and without tumor (6 cases). One patient was still alive without tumor for 164 months. Univariate analysis revealed that disease free interval (DFI) was a prognostic risk factor, while gender, age, primary tumor site, pulmonary metastasis size and location, surgical procedure, pre-surgical CEA level, re-metastasectomy did not show influence on the survival time after pulmonary metastasectomy.

CONCLUSIONSFor some selected patients with indication, pulmonary metastasectomy may be a potential curative method. DFI may be associated with the prognosis after pulmonary metastasectomy.

Colorectal Neoplasms ; mortality ; pathology ; surgery ; Female ; Humans ; Lung Neoplasms ; mortality ; secondary ; surgery ; Male ; Middle Aged ; Pneumonectomy ; Prognosis ; Retrospective Studies ; Survival Rate ; Treatment Outcome