Outcomes of patients with abdominoperineal resection (APR) and low anterior resection (LAR) who had very low rectal cancer.
Ontology highlight
ABSTRACT:
SUBMITTER: Yeom SS
PROVIDER: S-EPMC5671822 | biostudies-other | 2017 Oct
REPOSITORIES: biostudies-other
Publications
Outcomes of patients with abdominoperineal resection (APR) and low anterior resection (LAR) who had very low rectal cancer.
Yeom Seung-Seop SS Park In Ja IJ Jung Sung Woo SW Oh Se Heon SH Lee Jong Lyul JL Yoon Yong Sik YS Kim Chan Wook CW Lim Seok-Byung SB Kim Nayoung N Yu Chang Sik CS Kim Jin Cheon JC
Medicine 20171001 43
We compared the oncological outcomes of sphincter-saving resection (SSR) and abdominoperineal resection (APR) in 409 consecutive patients with very low rectal cancer (i.e., tumors within 3 cm from the anal verge); 335 (81.9%) patients underwent APR and 74 (18.1%) underwent SSR. The APR group comprised higher proportions of men (67.5% vs 55.4%, P = .049) and advanced-stage patients (P < .001). Preoperative chemoradiotherapy (PCRT) was more frequently administered in the SSR group (83.8% vs 52.8%, ...[more]
Similar Datasets
Project description:BACKGROUND:One of the most severe complications of low anterior rectal resection is anastomotic leakage (AL). The creation of a loop ileostomy (LI) reduces the prevalence of AL requiring surgical intervention. However, up to one-third of temporary stomas may never be closed. The first aim of the study was to perform a retrospective assessment of the impact of LI on the risk of permanent stoma (PS) and symptomatic AL. The second aim of the study was to assess preoperative PS risk factors in patients with LI. METHODS:A total of 286 consecutive patients who underwent low anterior rectal resection were subjected to retrospective analysis. In 101 (35.3%) patients, diverting LI was performed due to low anastomosis, while in the remaining 185 (64.7%) patients, no ileostomy was performed. LIs were reversed after adjuvant treatment. Analyses of the effect of LI on symptomatic AL and PS were performed. Among the potential risk factors for PS, clinical factors and the values of selected peripheral blood parameters were analysed. RESULTS:PS occurred in 37.6% and 21.1% of the patients with LI and without LI, respectively (p < 0.01). Symptomatic ALs were significantly more common in patients without LI. In this group, symptomatic ALs occurred in 23.8% of patients, while in the LI group, they occurred in 5% of patients (p < 0.001). In the LI group, the only significant risk factor for PS in the multivariate analysis was preoperative plasma fibrinogen concentration (OR = 1.007, 97.5% CI 1.002-1.013, p = 0.013). CONCLUSIONS:Although protective LI may reduce the incidence of symptomatic AL, it can be related to a higher risk of PS in this group of patients. The preoperative plasma fibrinogen concentration can be a risk factor for PS in LI patients and may be a useful variable in decision-making models.
| S-EPMC7427951 | biostudies-literature
Project description:Intersphincteric resection (ISR) has rapidly increased worldwide including laparoscopic surgery. However, there are some concerns for the definition of ISR, surgical technique, oncological outcome, anal function, and quality of life (QoL). The aim of the present study is to evaluate those issues. A review of this surgical technique was carried out by searching English language literature of the PubMed online database and appropriate articles were identified. With regard to open-ISR, the morbidity rate ranged from 7.5% to 38.3%, with lower mortality rates. Local recurrence rates varied widely from 0% to 22.7%, with a mean follow-up duration of 40-94 months. Disease-free and overall 5-year survival rates were 68-86% and 76-97%, respectively. Those outcomes were equivalent to laparoscopic-ISR. Surgical and oncological outcomes of ISR were generally acceptable. However, accurate evaluation of anal function and QoL was difficult because of a lack of standard assessment of various patient-related factors. The surgical and oncological outcomes after ISR seem to be acceptable. The ISR technique seems to be valid as an alternative to abdominoperineal resection in selected patients with a very low rectal cancer. However, both necessity for ISR and expectations of QoL impairment as a result of functional disorder should be fully discussed with patients before surgery.
| S-EPMC5881339 | biostudies-literature
Project description:AimNonrestorative low anterior resection (n-rLAR) (also known as low Hartmann's) is performed for rectal cancer when a poor functional outcome is anticipated or there have been problems when constructing the anastomosis. Compared with restorative LAR (rLAR), little oncological outcome data are available for n-rLAR. The aim of this study was to compare oncological outcomes between rLAR and n-rLAR for primary rectal cancer.MethodThis was a nationwide cross-sectional comparative study including all elective sphincter-saving LAR procedures for nonmetastatic primary rectal cancer performed in 2011 in 71 Dutch hospitals. Oncological outcomes of patients undergoing rLAR and n-rLAR were collected in 2015; the data were evaluated using Kaplan-Meier survival analysis and the results compared using log-rank testing. Uni- and multivariable Cox regression analysis was used to evaluate the association between the type of LAR and oncological outcome measures.ResultsA total of 1197 patients were analysed, of whom 892 (75%) underwent rLAR and 305 (25%) underwent n-rLAR. The 3-year local recurrence (LR) rate was 3% after rLAR and 8% after n-rLAR (P < 0.001). The 3-year disease-free survival and overall survival rates were 77% (rLAR) vs 62% (n-rLAR) (P < 0.001) and 90% (rLAR) vs 75% (n-rLAR) (P < 0.001), respectively. In multivariable Cox analysis, n-rLAR was independently associated with a higher risk of LR (OR = 2.95) and worse overall survival (OR = 1.72).ConclusionThis nationwide study revealed that n-rLAR for rectal cancer was associated with poorer oncological outcome than r-LAR. This is probably a noncausal relationship, and might reflect technical difficulties during low pelvic dissection in a subset of those patients, with oncological implications.
| S-EPMC8247354 | biostudies-literature
Project description:BACKGROUND:Natural orifice specimen extraction surgery is a novel technique of minimally invasive surgery. The purpose of this study was to compare the safety of laparoscopic anterior resection with natural orifice specimen extraction (NOSE-LAR) and abdominal incision specimen extraction (AISE-LAR) for sigmoid or rectum tumors. METHODS:MEDLINE (PubMed), Embase, CENTRAL (Cochrane Central Register of Controlled Trials), Scopus, and ClinicalTrials databases were systematically searched for related articles up to August 2019. The primary outcomes included postoperative complications (overall postoperative complication, incision-related complication, anastomotic fistula, and severe complication) and pathologic results (lymph nodes harvested, proximal resection margin, and distal resection edge). The statistical analysis was performed on STATA 12.0 software. RESULTS:Ten studies comprising 1787 patients were used for meta-analysis. Compared with AISE-LAR, NOSE-LAR had more advantages in terms of overall postoperative complication (odds ratio (OR) = 0.65 (95% CI, 0.46 to 0.90; P = 0.01)), incision-related complication (OR = 0.13 (95% CI, 0.05 to 0.35; P < 0.01)), distal resection edge (weighted mean difference (WMD) = 0.17?cm (95% CI, 0.02 to 0.33?cm; P = 0.02)), recovery of gastrointestinal function (WMD = - 0.38?day (95% CI, - 0.70 to - 0.06?day; P = 0.02 )), pain scores in postoperative day 1 (WMD = - 1.64 (95% CI, - 2.31 to - 0.98; P < 0.01)), additional analgesics usage (OR = 0.21 (95% CI, 0.11 to 0.40; P < 0.01)) and hospital stay (WMD = - 0.71?day (95% CI, - 1.10 to - 0.32?day; P < 0.01)), while the operation time of NOSE-LAR was prolonged (WMD = 7.4?min (95% CI, 0.17 to 14.64?min; P = 0.04)). The anastomotic fistula, severe complication, lymph nodes harvested, proximal resection margin, intraoperative blood loss, and long-term outcomes in NOSE-LAR were comparable with AISE-LAR. CONCLUSIONS:The safety of NOSE-LAR was demonstrated, and it could be an alternative to conventional surgery in laparoscopic anterior resection for sigmoid and rectal tumors. However, further randomized and multi-center trials are required.
| S-EPMC7439723 | biostudies-literature
Project description:While the use of laparoscopy has increased among patients undergoing colorectal surgery, there is ongoing debate regarding the oncologic equivalence of laparoscopy compared to open low anterior resection (LAR) for rectal cancer.The 2010-2011 NCDB was queried for patients undergoing LAR for rectal cancer. Subjects were grouped by laparoscopic (LLAR) versus open (OLAR) technique. Baseline characteristics were compared. Subjects were propensity matched, and outcomes were compared between groups.A total of 18,765 patients were identified (34.3% LLAR, 65.7% OLAR). After propensity matching, all baseline variables were highly similar except for carcinoembryonic antigen (CEA) level. Complete resection was more common in patients undergoing LLAR (91.6 vs. 88.9%, p?<?0.001), and statistically significant benefits were observed for gross, microscopic, and circumferential (>1 mm) margins (all p?<?0.001). There was no difference in median number of lymph nodes obtained (15 vs. 15). Patients undergoing LLAR had shorter lengths of stay (5 vs. 6 days, p?<?0.001) without a corresponding increase in 30-day readmission rates (6 vs. 7%, p?=?0.02).Laparoscopic LAR appears to result in equivalent short-term oncologic outcomes compared to the traditional open approach as measured via surrogate endpoints in the NCDB. While these results support the increasing use of laparoscopy in rectal surgery, further data are necessary to assess long-term outcomes.
| S-EPMC4336173 | biostudies-other
Project description:Background:Diversion colitis (DC) is a non-specific inflammation in the intestinal mucosa with colonic dysfunction after low anterior resection of rectal cancer. It is newly proposed in recent years. With the gradual prolongation time of the ileostomy status, the condition of DC may become increasingly severe. However, the corresponding pathogenesis of DC has not been clarified yet. Methods:Clinical information were collected from patients with low rectal cancer admitted to the Department of Anorectal Surgery, Changzheng Hospital, from April 2017 to April 2019. All patients were underwent laparoscopic low anterior resection combined with terminal ileum enterostomy (dual-chamber). After 3-6 months, selective enterostomy closure surgeries were conducted. Retrospective data were divided into mild and severe groups based on the scores of electronic colonoscopy made during follow-up. We then used chi-square test to comparethe clinical baseline information, clinical symptoms, and endoscopic characteristics between the two groups of patients. The multivariate Cox proportional hazards regression model was applied for estimating the odds ratio (OR) and corresponding 95% confidence interval (CI) to identify potential significant factors affecting severity of DC severity. After that, we recruited 40 patients with low rectal cancer after surgery (enterostomy status) and 40 patients were further classified into mild and severe groups according to the scores of endoscopic examinations. The following indexes were tested in the above two groups patients: calprotectin in intestinal lavage fluid, inflammatory factors in tissue and plasma, and lipopolysaccharide levels in plasma. Moreover, 16s-rDNA sequencing was carried out to analyze the diversity and and differences of microbiome in theintestinal lavage fluid of the two groups. Results:According to the endoscopic scores, there were 52 cases in the mild group and 58 cases in the severe group. We found that the age, BMI, history of diabetes , and the incidence of DC-related clinical symptoms (including abdominal pain, mucus, bloody stool, etc.) were significantly different between the two groups. (P＜0.05). Logistic multi-factor regression analysis results showed that age, BMI, history of diabetes, and symptoms associated with the state of the stoma are the independent risk factors that affect DC severity (P＜0.05). After enterostomy closure surgeries, compared with mild group, patients in the severe group showed much more clinical signs, such as abdominal pain, bloody stools, tenesmus, and anal pain andthe daily number of diarrhea, the time to return to normal stool and the level of CRP in plasma were significantly higher (P＜0.05). Results also showed that age, BMI, history of diabetes, and endoscopic scores were the independent risk factors affecting diarrhea severity after enterostomy closure surgery (P＜0.05). Of the 40 patients with low rectal cancer recruited, 23 were in the mild group and 17 in the severe group.In particular, the levels of calprotectin in the intestinal lavage fluid, TNF-α, IL-1β, IL-6 and IL-17 in mucosal /plasma, and the plasma LPS level of severe group were significantly higher than that of mild group (P＜0.05). . The results of 16s-rDNA sequencing showed that micromicrobiome with high enrichment values primarily consisted of Bifidobacteriales and Prevotella in mild group, whereas that in the severe group consisted of Providencia and Dorea. The functional predictions on such two types of microbiome were mainly focused on lipid synthesis, glycan synthesis, metabolism, and amino acid metabolism pathways.
2023-04-04 | GSE226706 | GEO
Project description:The optimal level for inferior mesenteric artery ligation during anterior resection for rectal cancer is controversial. The aim of this randomized trial was to clarify whether the inferior mesenteric artery should be tied at the origin (high tie) or distal to the left colic artery (low tie).Patients were allocated randomly to undergo either high- or low-tie ligation and were stratified by surgical approach (open or laparoscopic). The primary outcome was the incidence of anastomotic leakage. Secondary outcomes were duration of surgery, blood loss and 5-year overall survival.Some 331 patients entered the trial between June 2006 and September 2012. The trial was stopped prematurely as recruitment was slow. Seven patients were excluded after randomization but before operation because of procedural changes. High tie and low tie were performed in 164 and 160 patients respectively. The incidence of anastomotic leakage was not significantly different (17·7 versus 16·3 per cent respectively; P = 0·731). The incidence of severe complications requiring intervention was 2·4 versus 5·0 per cent for high and low tie respectively (P = 0·222). In multivariable analysis, risk factors for anastomotic leakage included male sex (odds ratio 4·36, 95 per cent c.i. 1·56 to 12·18) and distance of the tumour from the anal verge (odds ratio 0·99, 0·98 to 1·00). At 5 years there were no significant differences in overall (87·2 versus 89·4 per cent respectively; P = 0·386) and disease-free (76·3 versus 77·6 per cent; P = 0·765) survival.The level of ligation of the inferior mesenteric artery does not significantly influence the rate of anastomotic leakage. Registration number: NCT01861678 ( https://clinicaltrials.gov).
| S-EPMC6069351 | biostudies-literature
Project description:BackgroundThe objective of this study is to clarify the relationship between demographic and surgical factors and operating time, and thus operative difficulty, in patients undergoing laparoscopic anterior resection for mid-low rectal cancer, since different studies have derived different results.MethodsThe records of patients with mid-low rectal cancer who underwent laparoscopic anterior resection were retrospectively studied. Demographic data, tumor characteristics, and pelvimetry measurements were collected and analyzed with respect to operating time, using correlation coefficient analysis, principle component analysis, and linear regression.ResultsA total of 14 patients (10 males, 4 females; 65.50 ± 7.12 years of age) were included. Demographic and tumor characteristics not correlated with operating time. Body mass index (BMI) (P = 0.001); interacetabular distance (IA) (P = 0.001); anatomical transverse distance (IP) (P = 0.008); interischial distance (IS) (P = 0.002); intertuberous distance (IT) (P = 0.005); distance between the coccyx and symphysis (CoSy) (P = 0.013); and the angle of the lower border of the symphysis pubis, upper border of symphysis pubis, and sacral promontory (angle 5) (P = 0.004) were significantly associated with operating time. The equation was:operatingtime=0.653 × BMI+0.818 × angle5-0.404 × IA-0.380 × IP-0.512 × IS-0.405×IT-0.570 × CoSy+330.8.ConclusionsTransverse diameters of the pelvis, BMI, angle 5, and CoSy played the most important role in affecting operating time. The equation can be a very useful tool for preoperative assessment.
| S-EPMC3941695 | biostudies-literature
Project description:IntroductionAnastomotic leakage is the most important complication in colorectal surgery occurring in up to 20% after low anterior rectal resection. Therefore, a diverting ileostomy is usually created during low anterior resection to protect the anastomosis or rather to diminish the consequences in case of anastomotic leakage. The so-called virtual or ghost ileostomy is a pre-stage ostomy that can be easily exteriorised, if anastomotic leakage is suspected, in order to avoid the severe consequences of anastomotic leakage. On the other hand, an actual ileostomy can be avoided in patients, who do not develop anastomotic leakage.Methods and analysisThe GHOST trial is a randomised controlled pilot trial comparing ghost ileostomy with conventional loop ileostomy in patients undergoing low anterior resection with total mesorectal excision for rectal cancer. After screening for eligibility and obtaining informed consent, a total of 60 adult patients are included in the trial. Patients are intraoperatively randomised to the trial groups in a 1:1 ratio after assuring that none of the intraoperative exclusion criteria are present. The main outcome parameter is the comprehensive complication index as a measure of safety. Further outcomes include specific complications, stoma-related complications, complications of ileostomy closure, frequency of transformation of ghost ileostomy into conventional ileostomy, frequency of terminal ostomy creation, proportion of patients with an ostomy at 6 months after index surgery, anorectal function (Wexner score) and quality of life assessed by the European Organisation for Research and Treatment of Cancer (EORTC) QLQ-C30 and CR29 questionnaires. Follow-up for each individual patient will be 6 months.Ethics and disseminationThe GHOST trial has been approved by the Medical Ethics Committee of Heidelberg University (reference number S-694/2017). If the intervention proves to be safe, loop ileostomy could be spared in a large proportion of patients, thus also avoiding stoma-related complications and a second operation (ileostomy closure) with its inherent complications in these patients.Trial registration numberGerman Clinical Trials Registry (DRKS00013997); Universal Trial Number: U1111-1208-9742.
| S-EPMC7566726 | biostudies-literature
Project description:BackgroundTransanal total mesorectal excision (TaTME) is a new technique that is designed to overcome the limits of the open and laparoscopic approach for rectal resections.ObjectiveThis study is designed to compare TaTME with standard laparoscopic TME (LaTME).MethodsWe searched Medline, Embase, and Scopus databases covering a up to October 2018. Inclusion criteria for study enrolment: (1) study comparing laparoscopic resection of rectal cancer vs. TaTME for rectal malignancy, (2) reporting of overall morbidity, operative time, or major complications.ResultsEleven non-randomized studies were eligible with a total of 778 patients. We found statistical significant differences in regard to major complications in favour of TaTME (RR = 0.55; 95% CI 0.31?0.97; p = 0.04). We did not found significant differences regarding overall complications intraoperative adverse effects, operative time, anastomotic leakage, intra-abdominal abscess occurrence, Surgical Site Infection, reoperations, Length of stay, completeness of mesorectal excision, R0 resection rate, number of harvested lymph nodes, circumferential resection margin, and distal resection margin.ConclusionsThis meta-analysis shows benefits of TaTME technique regarding major postoperative complications. Regarding clinicopathological features transanal approach is not superior to LaTME. Currently, the quality of the evidence on benefits of TaTME is low due to lack of randomized controlled trials, which needs to be taken into consideration in further evaluation of the technique. Further evaluation of TaTME require conducting large randomized control trials.
| S-EPMC6262322 | biostudies-literature