Colorectal cancer surgery in elderly patients: presentation, treatment, and outcomes

Association of Frailty With Post-Operative Outcomes of Older Adults Undergoing Elective Ostomy Reversal

BACKGROUND

Ostomy reversal is a common surgical procedure; however, it is not without associated risks. Patient selection for this elective procedure is therefore critically important. Elderly patients represent a growing population and a substantial proportion of patients that present for evaluation after ostomy creation due to the most common etiologies. This study aims to assess the impact of frailty on the outcomes of ostomy reversal among older adults.

METHODS

Patients ≥65 years who underwent ostomy reversal from 2015 to 2019 were identified in the NSQIP database. Frailty was calculated using the 5-item Modified Frailty Index (MFI). Multivariate regression was performed to evaluate the association of frailty with post-operative 30-day mortality, 30-day serious complications, discharge to a facility, and 30-day readmission.

RESULTS

A total of 13,053 patients were included, of which 18.7% were frail (MFI ≥ 2). Patients who underwent colostomy reversal had higher rates of serious complications (P < .0001) and discharge to facility (P < .0001) compared to other reversals. In multivariate analysis, frailty was associated with increased odds of serious complications (OR 1.52, 95% CI 1.31-1.77), discharge to facility (OR 2.14, 95% CI 1.79-2.57), and readmission (OR 1.23, 95% CI 1.04-1.46), but not mortality. Frail patients had predicted probabilities 1.4 times higher for serious complications and 1.7-2.2 times greater for discharge to facility than non-frail patients.

CONCLUSIONS

Among older adults undergoing elective ostomy reversal, frailty is independently associated with increased odds of 30-day serious complications, discharge to facility, and 30-day readmission. As a potentially modifiable risk factor, identification of frailty offers the opportunity for shared decision-making and prehabilitation.

Risk of non-colorectal cancer-related death in elderly patients with the disease: A comparison of five preoperative risk assessment indices

BACKGROUND

A considerable number of elderly patients with colorectal cancer (CRC) die of non-CRC-related causes. The Controlling Nutritional Status (CONUT) score, American Society of Anesthesiologists Physical Status classification, Charlson Comorbidity Index, National Institute on Aging, and National Cancer Institute Comorbidity Index, and Adult Comorbidity Evaluation-27 score are all known predictors of survival in patients with CRC. However, the utility of these indices for predicting non-CRC-related death in elderly CRC patients is not known.

METHODS

The study population comprised 364 patients aged 80 years or more who received curative resection for stage I-III CRC between 2000 and 2016. The association of each index with non-CRC-related death was compared by competing-risks analysis such as the cumulative incidence function and proportional subdistribution hazards regression analysis as well as time-dependent receiver-operating characteristic (ROC) analysis.

RESULTS

There were 85 deaths (40 CRC-related and 45 non-CRC-related) during a median observation period of 53.2 months. Cumulative incidence function analysis identified CONUT score as the most suitable for risk stratification for non-CRC-related death. In proportional subdistribution hazards regression, risk of non-CRC-related death increased significantly as CONUT score worsened (2/3/4 vs. 0/1, hazard ratio 1.73, 95% confidence interval [CI] 0.91-3.15; ≥5 vs. 2/3/4, hazard ratio 2.71, 95% CI 1.08-6.81). Time-dependent ROC curve analysis showed that CONUT score were consistently superior to other indices during the 5-year observation period.

CONCLUSIONS

The majority of deaths in elderly patients with CRC were not CRC-related. CONUT score was the most useful predictor of non-CRC-related death in these patients.

Surgery for T4 Colorectal Cancer in Older Patients: Determinants of Outcomes

Background: This study aimed to compare the outcomes of older and younger patients with T4 colorectal cancer (CRC) treated with surgery. Methods: Consecutive patients with T4 CRC treated surgically at Henri Mondor Hospital between 2008 and 2016 were retrospectively analyzed in age subgroups (1) 50−69 years and (2) ≥70 years for overall and relative survival. The multivariable analyses were adjusted for adjusted for age, margin status, lymph node involvement, CEA level, postoperative complications (POC), synchronous metastases, and type of surgery. Results: Of 106 patients with T4 CRC, 57 patients (53.8%) were 70 years or older. The baseline characteristics were generally balanced between the two age groups. Older patients underwent adjuvant therapy less commonly (42.9 vs. 57.1%; p = 0.006) and had a longer delay between surgery and chemotherapy (median 40 vs. 34 days; p < 0.001). A higher trend for POC was reported among the older patients but did not impact the survival outcomes. After adjusting for confounding factors, the overall survival was shorter among the older patients (HR = 3.322, 95% CI 1.49−7.39), but relative survival was not statistically correlated to the age group (HR = 0.873, 95% CI 0.383−1.992). Conclusions: Older patients with CRC were more prone to severe POC, but age did not impact the relative survival of patients with T4 colorectal cancer. Older patients should not be denied surgery based on age alone.

NutriCatt Protocol Improves Body Composition and Clinical Outcomes in Elderly Patients Undergoing Colorectal Surgery in ERAS Program: A Retrospective Cohort Study

BACKGROUND

A poor body composition, often found in elderly patients, negatively impacts perioperative outcomes. We evaluated the effect of a perioperative nutritional protocol (NutriCatt) on body composition and clinical outcomes in a cohort of elderly patients undergoing colorectal surgery in a high-volume center adopting the ERAS program.

METHODS

302 out of 332 elderly (>75 years) patients from 2015 to 2020 were identified. Patients were divided according to their adherence, into "NutriCatt + ERAS" (n = 166) or "standard ERAS" patients (n = 136). Anthropometric and bioelectrical impedance analysis data were evaluated for NutriCatt + ERAS patients. Complications, length of hospital stay (LOS), and other postoperative outcomes were compared between both groups. Results: In NutriCatt + ERAS patients, significant improvements of phase angle (pre-admission vs. admission 4.61 ± 0.79 vs. 4.84 ± 0.85; p = 0.001; pre-admission vs. discharge 4.61 ± 0.79 vs. 5.85 ± 0.73; p = 0.0002) and body cell mass (pre-admission vs. admission 22.4 ± 5.6 vs. 23.2 ± 5.7; p = 0.03; pre-admission vs. discharge 22.4 ± 5.6 vs. 23.1 ± 5.8; p = 0.02) were shown. NutriCatt + ERAS patients reported reduced LOS (p = 0.03) and severe complications (p = 0.03) compared to standard ERAS patients. A regression analysis confirmed the protective effect of the NutriCatt protocol on severe complications (OR 0.10, 95% CI 0.01-0.56; p = 0.009).

CONCLUSIONS

The NutriCatt protocol improves clinical outcomes in elderly patients and should be recommended in ERAS colorectal surgery.

Clinical characteristics and prognosis of elderly patients with colorectal cancer: Comparison between surgical resection and supportive care

Elderly colorectal cancer (CRC) patients tend to avoid standard treatment, especially curative surgical resection, because of concerns about surgical complications or underlying diseases. This study is intended to compare clinical characteristics and prognosis between patients who had undergone surgical resection and received supportive care, and to evaluate the usefulness of surgical treatment in elderly patients.A total of 114 patients aged ≥80 years who were diagnosed with CRC were analyzed retrospectively. Of these patients, 73 patients underwent surgical resection for malignancy and 41 patients received supportive care. Clinicopathological factors and overall survival (OS) rates were compared.The surgical resection group had better Eastern Cooperative Oncology Group performance status, American Society of Anesthesiologists (ASA) physical status, and a lower stage than did the supportive-care group. The 3-year OS rate of the surgical group was significantly higher than that of the supportive-care group (60.7% vs 9.1%, P < .001). In extremely elderly patients (age ≥85 years), the surgical group showed a better 3-year OS rate than did the supportive-care group (73.9% vs 6.3%, P < .001), although Eastern Cooperative Oncology Group performance status and ASA physical status were not different. The post-operative mortality rate was 2.7%. In the analysis of risk factors related to survival, surgical resection was a good prognostic factor.Surgical treatment in elderly CRC patients showed a survival benefit, even in the extremely elderly patients. Surgical resection for CRC in elderly patients can be considered to improve survival.

Outcomes following major resection for colorectal cancer in patients aged 65+ years: a population-based study in Queensland, Australia

BACKGROUND

The risk of developing colorectal cancer (CRC) increases with increasing age. As surgery is the primary treatment for CRC, our aim was to examine outcomes following major resection for CRC in a cohort of individuals aged ≥65 years.

METHODS

This population-based retrospective study included 18 339 patients aged ≥65 years diagnosed with CRC from 2007 to 2016. Multivariate logistic regression was used to examine factors associated with the likelihood of having major resection, 30-day mortality and laparoscopic surgical procedure. Cox proportional hazards was used to examine factors associated with risk of death at 2 years post-surgery.

RESULTS

Overall, 77.8% (n = 14 274) of patients had a major resection. Males and patients ≥75 years were significantly less likely to have a major resection (P < 0.001 and P < 0.001, respectively). Thirty-day mortality was 3.1% and 2-year overall survival was 78.7%. After adjustment, factors such as increasing age (≥75 years), ≥2 comorbidities, emergency admission, open surgical procedure and treatment in a public hospital were all independently and significantly associated with poorer outcomes. The likelihood a patient had a laparoscopic procedure was significantly lower for those from a disadvantaged area (P < 0.001), emergency admission (P < 0.001) as well as for those treated in a public versus private hospital (P < 0.001).

CONCLUSIONS

Post-operative mortality increased, and 2-year survival decreased after age 75 years. The finding of significantly lower rates of laparoscopic surgery for patients from disadvantaged areas and those treated in a public hospital requires further investigation.

Establishment of prognostic nomogram for elderly colorectal cancer patients: a SEER database analysis

Background

This study aimed to establish nomogram models of overall survival (OS) and cancer-specific survival (CSS) in elderly colorectal cancer (ECRC) patients (Age ≥ 70).

Methods

The clinical variables of patients confirmed as ECRC between 2004 and 2016 were retrieved from the Surveillance, Epidemiology, and End Results (SEER) database. Univariate and multivariate analysis were performed, followed by the construction of nomograms in OS and CSS.

Results

A total of 44,761 cases were finally included in this study. Both C-index and calibration plots indicated noticeable performance of newly established nomograms. Moreover, nomograms also showed higher outcomes of decision curve analysis (DCA) and the area under the curve (AUC) compared to American Joint Committee on Cancer (AJCC) tumor-node-metastasis (TNM) stage and SEER stage.

Conclusions

This study established nomograms of elderly colorectal cancer patients with distinct clinical values compared to AJCC TNM and SEER stages regarding both OS and CSS.

Some Nursing Screening Tools Can Be Used to Assess High-Risk Older Adults Who Undergo Colorectal Surgery for Cancer

AIM

Life expectancy and incidence of cancer among older adults are increasing. The aim of this study was to assess whether routinely used nursing screening tools can predict surgical outcomes in older adults with colorectal cancer.

METHODS

Data of patients who underwent elective colorectal cancer surgery at Rabin Medical Center during the years 2014-2016 were collected retrospectively. Patients were divided into study group (age 80-89 y), and control group (age 60-69 y) for comparing surgical outcomes and six-month mortality. In the study group, screening tool scores were evaluated as potential predictors of surgical outcomes. These included Malnutrition Universal Screening Tool (MUST), Admission Norton Scale Scores (ANSS), Morse Fall Scale (MFS), and Charlson Co-morbidity Index (CCI).

RESULTS

The study group consisted of 77 patients, and the control group consisted of 129 patients. Postoperative mortality and morbidity were similar in both groups. Nursing screening tools did not predict immediate postoperative outcomes in the study group. MUST and CCI were predictors for six-month mortality. CCI score was 9.43±2.44 in those who died within six months from surgery compared to 7.07 ±1.61 in those who were alive after six months (p<0.05). Post-operative complications were not associated with increased 30-day mortality. Advanced grade complications were associated with an increased six-month mortality (RR=1.37, 95% CI 0.95-1.98, p=0.013).

CONCLUSION

Different screening tools for high-risk older adults who are candidates for surgery have been developed, with the caveat of necessitating skilled physicians and resources such as time. Routinely used nursing screening tools may be helpful in better patient selection and informed decision making. These tools, specifically MUST and CCI who were found to predict six-month survival, can be used to additionally identify high-risk patients by the nursing staff and promote further evaluation. This can be a valuable tool in multidisciplinary and patient-centered care.

Utilisation of Adjuvant Chemotherapy and 5-Year Survival Analysis of Prospectively Recorded Cohort Data for Older Adults Versus Younger Adults with Resected Primary Colon Cancer

PURPOSE

Colon cancer is predominantly a disease of older adults. Studies determining the influence of age on outcomes of colon cancer have conflicting results. We aim to determine the long-term outcomes and utilisation of adjuvant chemotherapy of older adults compared with younger adults who had had a resection of a primary colon cancer.

METHODS

Consecutive patients who had resection of a primary colon cancer between January 1, 2000 and December 31, 2010 were identified from a prospective database and stratified into three age groups: ≤ 69 years, 70 to 79 years, and ≥ 80 years. Age-related differences in patients, cancer, and treatment characteristics were determined by chi-square tests. Five-year overall survival and cancer-specific survival were determined by Kaplan-Meier method and by multivariable Cox regression analysis to adjust for potential confounding factors.

RESULTS

Of 1135 included patients, 469 (41%) patients were aged ≤ 69 years, 382 (34%) were 70-79 years, and 284 (25%) were ≥ 80 years. Increasing age group predicted more comorbidity (p < 0.001), cardiac comorbidity (p < 0.001), right-sided cancers (p < 0.001), and less adjuvant chemotherapy (stage III only; p < 0.001). Increasing age group was associated with worse overall survival by stage (p < 0.001) but not cancer-specific survival by stage (p = 0.83). Adjuvant chemotherapy in patients with stage III colon cancer independently predicted improved overall survival (p < 0.001) and cancer-specific survival (p = 0.01).

CONCLUSIONS

Compared with younger adults, older adults with colon cancer had worse survival outcomes and received less adjuvant chemotherapy.

Clinico-pathological Features of Colon Cancer Patients Undergoing Emergency Surgery: A Comparison Between Elderly and Non-elderly Patients

BACKGROUND

Colorectal cancer (CRC) is one of the most common cancers in patients older than 65 years. Emergency presentation represents about 30% of cases, with increased morbidity and mortality rates. The aim of this study is to compare the perioperative outcome between elderly and non-elderly patients undergoing emergency surgery.

METHOD

We retrospectively analysed CRC patients that underwent emergency surgery at the Departments of Surgery of the Sapienza University Sant'Andrea Hospital in Rome, and at San Donato Hospital in Arezzo, between June 2012 and June 2017. Patients were divided into two groups: non-elderly (< 65 years) and elderly (≥ 65 years). Variables analysed were sex, onset symptoms, associated disease, ASA score, tumor site and TNM stage, surgical procedures and approach, and morbidity and mortality.

RESULTS

Of a total of 123 patients, 29 patients were non-elderly and 94 patients were elderly. No significant differences were observed in sex, onset symptoms and tumor site between the two groups. Comorbidities were significantly higher in elderly patients (73.4% vs 41.4%, p<0.001). No significant differences were observed between the two groups in surgical approach and the rate of one-stage procedures. Elderly patients were more frequently treated by Hartmann's procedure compared to non-elderly patients (20.2% vs 6.9%). Left colorectal resection with protective ileostomy was most frequent in the non-elderly group (27.6% vs 11.7%). No significant differences were found in the pT and pN categories of the TNM system between the two groups. However, a higher number of T3 in non-elderly patients was observed. A consistent number of non-oncologically adequate resections were observed in the elderly (21.3% vs 3.5%; p<0.03). The morbidity rate was significantly higher in the elderly group (31.9 % vs 3.4%, p<0.001). No significant difference was found in the mortality rate between the two groups, being 13.8% in the elderly and 6.9% in the non-elderly.

CONCLUSIONS

Emergency colorectal surgery for cancer still presents significant morbidity and mortality rates, especially in elderly patients. More aggressive tumors and advanced stages were more frequent in the non-elderly group and as a matter it should be taken into account when treating such patients in the emergency setting in order to perform a radical procedure as much as possible.

Tumour Budding and Tumour Stroma Ratio are Reliable Predictors for Death and Recurrence in Elderly Stage I Colon Cancer Patients

AIM

Tumour budding (BD) and Tumour stroma ratio (TSR) are considered valuable survival parameters for colon cancer (CC), but it is still unclear whether these parameters predict a poor prognosis. This study aimed to determine the survival effect of TB and TSR in elderly stage I CC patients.

METHODS

We evaluated these parameters in eighty-eight stage I CC patients who underwent surgical treatment alone between 1998 and 2015. The relationship between these parameters and age was investigated. Model A was used for methodology.

RESULTS

In elderly patients (≥68), these parameters obtained more successful results for following analysis: relationship between prognostic factors [lymphatic invasion (BD, p = 0.003; TSR, p = 0.003), perineural invasion (BD, p = 0.016; TSR, p = 0.004), tumour deposites (BD, p = 0.005; TSR, p = 0.033), MSI (BD, p=0.031; TSR, p=0.012), etc.], correlation of estimates (BD, r=0.724; TSR, r=0.703), and reproducibility of study (BD [Kappa (ĸ)]=0.53-0.75; TSR (ĸ) =0.56-0.71). Also, the cut-off values were useful for BD (area of under ROC (AUC)=0.816 [0.707-0.925]) and TSR (AUC=0.810 [0.697-0.924]). In univariate analysis, in elderly patients, these parameters had a poor 5-year survival for RFS (p<0.001[BD], p=0.001[TSR]), OS (p<0.001[BD], p=0.005[TSR]), and LR (p=0.008[BD], p=0.034[TSR]). Multivariate analysis confirmed that these parameters are independent worse predictors for RFS (BD: 1.42[HR], p=0.002; TSR: 1.50[HR], p=0.001), OS (BD: 1.38[HR], p=0.014; TSR: 1.42[HR], p=0.005), and LR (BD: 1.61[HR], p=0.034) in elderly patients.

CONCLUSIONS

Our results confirm that BD and TSR are reliable indexes for poor survival in elderly stage I CC patients. We recommend using model A for successful results and standardization.

Years of Life Lost for Older Patients After Colorectal Cancer Diagnosis

BACKGROUND

An aging population combined with an increased colorectal cancer (CRC) incidence in the older population will increase its prevalence in the elderly, questioning how many years of life are lost (YLLs) in these patients.

PATIENTS AND METHODS

Data from 32,568 Dutch CRC patients ≥ 80 years were used to estimate the number of YLLs after diagnosis, using a reference age-, sex- and year-of-onset-matched cohort derived from national life tables. YLLs were additionally adjusted by comorbidities. Number needed to treat (NNT) was used as measure of surgical effect size.

RESULTS

Surgery was applied in 74.9% of patients leading to 1.3 YLLs, being superior in 86.1% of cases with respect to alternative therapies (YLLs 4.8 years) and resulting in a number of two patients needed to operate to achieve one positive outcome. YLLs and NNTs depended on CRC stage, patient' age and comorbidities. For Stage I-II patients in the best clinical conditions (80-85 years without comorbidities), YLLs increased up to 4.1 years after surgery and up to 8.8 years without surgery (NNT 3). For Stage III patients, the NNT of surgery varied between 2 when they were in the best clinical conditions and 4 when they were older with high comorbidities. In Stage IV patients, the NNT ranged between 6 and 31.

CONCLUSIONS

YLLs represents a novel approach to evaluate CRC prognosis. Stage I-III surgical patients can have a life expectancy similar to that of general population, being the NNT of surgery reasonably small compared with alternatives. Personalized comorbidity data are needed to confirm present findings.

Current Evidence on miRNAs as Potential Theranostic Markers for Detecting Chemoresistance in Colorectal Cancer: A Systematic Review and Meta-Analysis of Preclinical and Clinical Studies

BACKGROUND

Findings from observational clinical studies examining the relationship between biomarker expression and theranosis in colorectal cancer (CRC) have been conflicting.

OBJECTIVE

We conducted this systematic review and meta-analysis to summarise the existing evidence to demonstrate the involvement of microRNAs (miRNAs) in chemoresistance and sensitivity in CRC through drug genetic pathways.

METHODS

Using PRISMA guidelines, we systematically searched PubMed and Science Direct for relevant studies that took place between 2012 and 2017. A random-effects model of meta-analysis was applied to evaluate the pooled effect size of hazard ratios (HRs) across the included studies. Cochran's Q test and the I² statistic were used to detect heterogeneity. A funnel plot was used to assess potential publication bias.

RESULTS

Of the 4700 studies found, 39 studies comprising 2822 patients with CRC met the inclusion criteria. The included studies used one or a combination of 14 chemotherapy drugs, including 5-fluorouracil and oxaliplatin. Of the 60 miRNAs, 28 were associated with chemosensitivity, 20 with chemoresistance, and one with differential expression and radiosensitivity; ten miRNAs were not associated with any impact on chemotherapy. The results outline the importance of 34 drug-regulatory pathways of chemoresistance and sensitivity in CRC. The mean effect size was 0.689 (95% confidence interval 0.428-1.110), indicating that the expression of miRNAs decreased the likelihood of death by about 32%.

CONCLUSION

Studies have consistently shown that multiple miRNAs could act as clinical predictors of chemoresistance and sensitivity. An inclusion of supplementary miRNA estimation in CRC routine practice needs to be considered to evaluate the efficacy of chemotherapy after confirming our findings with large-scale prospective cohort studies.

PROSPERO REGISTRATION NUMBER

CRD42017082196.

Safety of Laparoscopic Oncologic Resection in Elderly Patients with Colorectal Cancer: A Multicenter Retrospective Study Based on Perioperative Short-Term Outcomes

Objectives: Over the last century, unthinkable goals have been achieved in health care and medical sciences, leading to longer life expectancy. Although cancer affects all ages, it disproportionately targets older individuals. Thus, surgical oncologists are confronted with increasing numbers of older patients presenting with multiple chronic conditions. We intended to investigate the safety of oncologic resection in older patients with colorectal cancer (CRC) based on perioperative outcomes. Materials and Methods: We retrospectively collected and analyzed data from older patients (>85 years) who underwent curative resection for stage II or III CRC between January 2007 and August 2017 at four hospitals (St. Vincent's Hospital, Incheon St. Mary's Hospital, Seoul St. Mary's Hospital, and Yeouido St. Mary's Hospital). Results: A total of 140 patients were enrolled in this study. The mean age was 87.1, the mean stay in the intensive care unit after surgery was 1.6 ± 3.8 days, and the mean postoperative hospital stay was 10.5 ± 3.8 days, D3 lymph node dissection was performed in 67.0% of patients, and D2 lymph node dissection was performed in 33.0%. Postoperative complications occurred in 38 patients (27.9%). In the univariate analysis, the risk factors for postoperative complications were the omission of mechanical bowel preparation (P = .039) and open surgery (P = .031). Conclusions: Oncologic resection in selected older patients with CRC might be a relatively safe treatment option. In particular, a laparoscopic approach might be a safer surgical method than open surgery in older patients with CRC.

Prediction of overall survival following colorectal cancer surgery in elderly patients

BACKGROUND

With advanced age and chronic illness, the life expectancy of a patient with colorectal cancer (CRC) becomes less dependent on the malignant disease and more on their pre-morbid condition. Justifying major surgery for these elderly patients can be challenging. An accurate tool demonstrating post-operative survival probability would be useful for surgeons and their patients.

AIM

To integrate clinically significant prognostic factors relevant to elective colorectal surgery in the elderly into a validated pre-operative scoring system.

METHODS

In this retrospective cohort study, patients aged 70 and above who underwent surgery for CRC at Singapore General Hospital between 1 January 2005 and 31 December 2012 were identified from a prospectively maintained database. Patients with evidence of metastatic disease, and those who underwent emergency surgery or had surgery for benign colorectal conditions were excluded from the analysis. The primary outcome was overall 3-year overall survival (OS) following surgery. A multivariate model predicting survival was derived and validated against an equivalent external surgical cohort from Kyungpook National University Chilgok Hospital, South Korea. Statistical analyses were performed using Stata/MP Version 15.1.

RESULTS

A total of 1267 patients were identified for analysis. The median post-operative length of stay was 8 [interquartile range (IQR) 6-12] d and median follow-up duration was 47 (IQR 19-75) mo. Median OS was 78 (IQR 65-85) mo. Following multivariate analysis, the factors significant for predicting overall mortality were serum albumin < 35 g/dL, serum carcinoembryonic antigen ≥ 20 µg/L, T stage 3 or 4, moderate tumor cell differentiation or worse, mucinous histology, rectal tumors, and pre-existing chronic obstructive lung disease. Advanced age alone was not found to be significant. The Korean cohort consisted of 910 patients. The Singapore cohort exhibited a poorer OS, likely due to a higher proportion of advanced cancers. Despite the clinicopathologic differences, there was successful validation of the model following recalibration. An interactive online calculator was designed to facilitate post-operative survival prediction, available at http://bit.ly/sgh_crc. The main limitation of the study was selection bias, as patients who had undergone surgery would have tended to be physiologically fitter.

CONCLUSION

This novel scoring system generates an individualized survival probability following colorectal resection and can assist in the decision-making process. Validation with an external population strengthens the generalizability of this model.

A comparative study of short-term outcomes of colorectal cancer surgery in the elderly population

BACKGROUND

Colorectal Cancer (CRC) is a disease of the elderly, and with an ageing population, oncological surgical procedures for CRC in the elderly is expected to increase. However, the balance between surgical benefits and risks associated with age and comorbidities in elderly patients is obscure.

MATERIALS AND METHODS

A retrospective database of consecutive patients who received CRC surgery was used to compare short-term surgical and oncological outcomes between patients aged ≥75 and <75 years old undergoing CRC resection.

RESULTS

There were 54 patients (63.5%) in the <75 group and 31 patients (36.5%) in the ≥75 group. Overall, there were no differences between the <75 and ≥75 groups in postoperative HDU/ITU stay, median hospital LOS or 30-day mortality rates. Patients ≥75 had a higher preoperative performance status (25.9% versus 71.0%, p < .001), but no difference in ASA Grade and referral pattern, proportion of emergency operations, cancer staging, resection margins, achievement of curative resection or median lymph node yield. There was a significantly higher use of adjuvant chemotherapy in the <75 age group (48.1% versus 25.8%, p = .043).

CONCLUSIONS

With adequate patient selection, CRC resection in elderly patients is not associated with higher postoperative mortality or worse short-term oncological benefits.

Comparison of long-term outcome between hemicolectomy and partial colectomy in the elderly: a large population-based study

Due to large progress has been achieved in surgical techniques, anesthesia and perioperative care, it is accepted that the very elderly colon cancer (CC) patient is not contraindication for surgery. However, it is a controversy that an extended or a less aggressive surgical approach should be performed for this population. Here, we identified 28110 CC patients aged ≥80 from Surveillance, Epidemiology, and End-Results (SEER) database. The surgical approaches included extended hemicolectomy (HC) and partial colectomy (PC). 5-year cancer specific survival (CSS) was obtained. Kaplan-Meier methods and Cox regression models were used to assess the correlations between prognostic factors and long-term survival. The 5-year CSS for patients treated with HC were 45.6%, which were similar to patients who received PC (44.8%), the survival difference has no statistical significance (P=0.087). The result following propensity score matching further confirmed long-term survival were equal between HC and PC. However, patients in AJCC T3/T4 stage and with tumor size ≥5cm could obtain survival benefit from the extended surgery. In conclusion, most of elderly CC patients could not obtain survival benefit from extended resection. Partial colectomy should also be considered as an alternative approach for this group of patients.

Laparoscopic surgery for colorectal cancer in patients over 80 years of age: the morbidity outcomes

Purpose

The aim of this study was to compare the outcomes between patients under 60 years of age and older patients over 80 years of age who underwent laparoscopic colorectal surgery with colorectal cancer.

Methods

A retrospective analysis of 519 colorectal patients who underwent laparoscopic colorectal surgery for colorectal adenocarcinoma between January 2007 and December 2012 was collected and categorized into 2 groups of patients, those under 60 years of age (n = 404) and those over 80 years of age (n = 115).

Results

The group of patients over 80 years of age had a significantly higher ASA physical status classification (P < 0.001), more preoperative comorbidities (P < 0.001), had a tendency towards more tumors in a colonic location (P = 0.034), and more advanced American Joint Committee on Cancer TNM stage (P = 0.001). A higher proportion of right hemicolectomy and abdominoperineal resection was performed and more transfusions were required in the group of patients over 80 years of age (P = 0.002 and P = 0.001, respectively). There were no significant differences in operative time, conversion rate, resection margins, and numbers of harvested lymph nodes, hospital stay, and morbidity between the 2 groups. No postoperative mortality was found in the present study. The 3-year DFS for over 80 years age group and under 60 years age group were 73.5% and 73.9%, respectively (P = 0.770).

Conclusion

Laparoscopic colorectal surgery was effective and safe for elderly patients over 80 years of age and resulted in postoperative outcomes similar to those in younger patients. The postoperative morbidity after laparoscopic colorectal cancer surgery was not increased in over 80 years of age.

Role of surgery for colorectal cancer in the elderly

The prevalence of subjects with colorectal cancer is expected to grow in the next future decades and surgery represents the most successful treatment modality for these patients. Anyway, currently elderly subjects undergo less elective surgical procedures than younger patients mainly due to the high rates of postoperative morbidity and mortality. Some authors suggest extensive surgery, including multistage procedures, as carried out in younger patients while others promote less aggressive surgery. In older patients, laparoscopic-assisted colectomy showed a number of advantages compared to conventional open surgery that include lower stress, higher rate of independency after surgery, quicker return to prior activities and a decrease in costs. The recent advances in chemotherapy and the introduction of new surgical procedures such as the endoluminal stenting, suggest the need for a revisitation of surgical practice patterns and the role of palliative surgery, mainly for patients with advanced disease. In this article, we discuss the current role of surgery for elderly patients with colorectal cancer.

Inappropriate drug use in elderly patients is associated with prolonged hospital stay and increased postoperative mortality after colorectal cancer surgery: a population-based study

AIM

The study aimed to investigate whether continuing potentially inappropriate medication (PIM) is associated with length of hospital stay (LOS) and postoperative mortality in elderly people undergoing colorectal cancer surgery.

METHOD

The Swedish National Colorectal Cancer Register and the Swedish Prescribed Drug Register provided matched data on 7279 patients aged 75 years or more who had undergone bowel resection for colorectal cancer between 2007 and 2010. Patients were divided into two groups depending on whether or not they were taking PIM at the time of surgery. The primary efficacy variables were the LOS and 30-day postoperative mortality.

RESULTS

Of the 7279 patients, 22.5% (1641) of the patients were exposed to at least one PIM and the total number of drugs taken in this group was six, compared with three in the non-PIM group (P < 0.001). Postoperative mortality was higher in the PIM group (7.1% vs 4.5%, P < 0.001), and LOS was longer (10 days vs 9, P = 0.001). When adjusted for independent predictors, the differences in LOS (odds ratio 1.14; 95% confidence interval 1.00-1.29, P = 0.046) and postoperative mortality (odds ratio 1.43; 95% confidence interval 1.11-1.85, P = 0.006) remained significant.

CONCLUSION

The use of PIM prior to surgery is associated with increased postoperative mortality and prolonged hospital stay. Although no causal relationship is proved, the results add a further aspect to preoperative optimization of elderly patients about to have major colorectal surgery.

Treatment of colorectal cancer in the elderly

Colorectal cancer has a high incidence, and approximately 60% of colorectal cancer patients are older than 70, with this incidence likely increasing in the near future. Elderly patients (> 70-75 years of age) are a very heterogeneous group, ranging from the very fit to the very frail. Traditionally, these patients have often been under-treated and recruited less frequently to clinical trials than younger patients, and thus are under-represented in publications about cancer treatment. Recent studies suggest that fit elderly patients can be treated in the same way as their younger counterparts, but the treatment of frail patients with comorbidities is still a matter of controversy. Many factors should be taken into account, including fitness for treatment, the wishes of the patient and family, and quality of life. This review will focus on the existing evidence for surgical, oncologic, and palliative treatment in patients over 70 years old with colorectal cancer. Careful patient assessment is necessary in order to individualize treatment approach, and this should rely on a multidisciplinary process. More well-designed controlled trials are needed in this patient population.

Tumour characteristics, treatment patterns and survival of patients aged 80 years or older with colorectal cancer

AIM

This study aimed to clarify tumour characteristics and treatment patterns for patients with colorectal cancer aged 80 years or older and the impact of age on survival using a large-scale cancer registry database.

METHOD

The database was used to identify 40 851 colorectal cancer patients who underwent surgery between 1995 and 2004. Patients were stratified into four age groups (< 50, 50-64, 65-79, ≥ 80 years). Demographics, tumour characteristics, treatment pattern and survival were compared between age groups. Additionally, the impact of lymph node dissection and adjuvant chemotherapy on survival was studied using the propensity score-matching method.

RESULTS

In the over 80 age group, patients were more commonly female, with right colon cancer, multiple primary cancers, history of colorectal cancer, high serum carcinoembryonic antigen values, large tumour, undifferentiated histology, and more frequent pT3/pT4 tumours. In contrast, metastatic disease, central lymph node dissection and adjuvant chemotherapy were less frequent. Overall survival and cancer-specific survival decreased with increasing age for any stage. Multivariate analysis showed age to be an independent predictor of overall survival (hazard ratio 1.45, 95% CI 1.34-1.58, P < 0.001). In the propensity score-matched cohort, overall survival of the patients with central node dissection and having adjuvant chemotherapy was significantly better than for those without. This difference was not statistically significant in patients aged 80 and above.

CONCLUSION

This study showed a significant difference in tumour characteristics and treatment patterns in patients aged 80 and above. Even after adjustment for clinicopathological factors, the difference in survival persisted and age was considered a robust prognostic factor.

A systematic review of outcome reporting in colorectal cancer surgery

AIM

Evaluation of surgery for colorectal cancer (CRC) is necessary to inform clinical decision-making and healthcare policy. The standards of outcome reporting after CRC surgery have not previously been considered.

METHOD

Systematic literature searches identified randomized and nonrandomized prospective studies reporting clinical outcomes of CRC surgery. Outcomes were listed verbatim, categorized into broad groups (outcome domains) and examined for a definition (an appropriate textual explanation or a supporting citation). Outcome reporting was considered inconsistent if results of the outcome specified in the methods were not reported. Outcome reporting was compared between randomized and nonrandomized studies.

RESULTS

Of 5644 abstracts, 194 articles (34 randomized and 160 nonrandomized studies) were included reporting 766 different clinical outcomes, categorized into seven domains. A mean of 14 ± 8 individual outcomes were reported per study. 'Anastomotic leak', 'overall survival' and 'wound infection' were the three most frequently reported outcomes in 72, 60 and 44 (37.1%, 30.9% and 22.7%) studies, respectively, and no single outcome was reported in every publication. Outcome definitions were significantly more often provided in randomized studies than in nonrandomized studies (19.0% vs 14.9%, P = 0.015). One-hundred and twenty-seven (65.5%) papers reported results of all outcomes specified in the methods (randomized studies, n = 21, 61.5%; nonrandomized studies, n = 106, 66.2%; P = 0.617).

CONCLUSION

Outcome reporting in CRC surgery lacks consistency and method. Improved standards of outcome measurement are recommended to permit data synthesis and transparent cross-study comparisons.

Colorectal cancer treatment and follow-up in the elderly: an inexplicably different approach

The incidence of colorectal cancer increases as age progresses. At present, elderly patients have received substandard cancer treatment not supported by "evidence." Geriatric assessment should be performed preoperatively and selected elderly patients must be offered standard surgical treatment receiving the same complementary therapies as a younger patient. It should be stressed that elderly patients should not be deprived of their decision-making role. In our experience, more than 43% of patients with colorectal cancer are ≥70 years of age, and we believe that they should receive the same type of follow-up. This would allow for the detection and removal of polyps, treatment of malignant tumors, and psychological support similarly to younger patients. Significantly, in our experience, the incidence of reoperation for neoplastic disease is similar in the two patient populations.

Incidence trends and predictors for cost and average lengths of stay in colorectal cancer surgery

AIM: To evaluate the changing trends and outcomes of colorectal cancer (CRC) surgery performed at a large single institution in Taiwan.

METHODS: This study retrospectively analyzed 778 patients who received colorectal cancer surgery at E-Da Hospital in Taiwan from 2004 to 2009. These patients were from health examination, inpatient or emergency settings. The following attributes were analyzed in patients who had undergone CRC surgical procedures: gender, age, source, surgical type, tumor number, tumor size, number of lymph node metastasis, pathologic differentiation, chemotherapy, distant metastases, tumor site, tumor stage, average hospitalization cost and average lengths of stay (ALOS). The odds ratio and 95% confidence intervals were calculated to assess the relative rate of change. Regression models were employed to predict average hospitalization cost and ALOS.

RESULTS: The study sample included 458 (58.87%) males and 320 (41.13%) females with a mean age of 64.53 years (standard deviation, 12.33 years; range, 28-86 years). The principal patient source came from inpatient and emergency room (96.02%). The principal tumor sites were noted at the sigmoid colon (35.73%) and rectum (30.46%). Most patients exhibited a tumor stage of 2 (37.28%) or 3 (34.19%). The number of new CRC surgeries performed per 100000 persons was 12.21 in 2004 and gradually increased to 17.89 in 2009, representing a change of 46.52%. During the same period, the average hospitalization cost and ALOS decreased from $5303 to $4062 and from 19.7 to 14.4 d, respectively. The following factors were associated with considerably decreased hospital resource utilization: age, source, surgical type, tumor size, tumor site, and tumor stage.

CONCLUSION: These results can be generalized to patient populations elsewhere in Taiwan and to other countries with similar patient profiles.

A meta-analysis of endoscopic stenting as bridge to surgery versus emergency surgery for left-sided colorectal cancer obstruction

The best approach to resolve colonic obstruction in patients with left-sided colon cancer is not established. In this meta-analysis the efficacy of stenting as bridge-to-surgery was compared to emergency surgery for the management of left-sided colonic obstruction. Fourteen studies (randomized and non controlled studies) were identified, including 405 patients in the stent group and 471 in the emergency group. The difference between proportions was evaluated as effect size (ESi). There was large heterogeneity among the studies. Stenting offered advantages over emergency surgery in terms of increase in primary anastomosis (ES=25.1%, p<0.001), successful primary anastomosis (ES=23.7%, p<0.001), reduction of stoma creation (ES=-27.1%, p=0.03), infections (ES=-7.9%, p=0.006) and other morbidities (ES=-13.4%, p<0.001). The interventions were similar in regards to length of hospitalization, preoperative mortality and long-term survival.

What factors influence 10-year survival after curative resection of a colorectal carcinoma?

BACKGROUND

Ten-year survival rates are only rarely reported and frequently include a large proportion of censored data-that is, most of the patients have not survived the 10 years. We therefore selected patients in a prospectively maintained, hospital-based tumor register who had been operated on for colorectal carcinoma (CRC) more than 10 years earlier and who were classified as long-term survivors.

METHODS

For 589 consecutive CRC patients who underwent R0 resection in the period 1990-1998, we compared prognosis-relevant characteristics and calculated the survival rate as a function of age, sex, location of the tumor, general state of health, urgency of the operation, and pT and pN class. All patients were observed until their death or until at least 10 years after resection. Patients who died of other causes were censored. Overall survival and relative survival (the latter based on tumor-related death) were assessed.

RESULTS

The 10-year survivors were more often female (not significant), younger (p < 0.001), in good general health (p < 0.001), had undergone elective resection (p < 0.001), and had early-stage tumors (p < 0.001). In the univariate analysis emergency operation, impaired general health, invasion beyond the muscularis propria, and lymph-node metastasis were found to reduce relative survival. In the multivariate analysis, location, emergency resection, pT, and pN were found to be statistically independent risk factors.

CONCLUSIONS

Long-term freedom from tumor recurrence, like-short-term, is influenced largely by factors that are beneficially influenced by early recognition. The patient's age at resection is immaterial.

Clinicopathological characteristics and long-term outcomes of colorectal cancer in elderly Chinese patients undergoing potentially curative surgery

PURPOSE

The aim of this study was to determine the clinicopathological characteristics and outcomes of Chinese colorectal cancer (CRC) patients aged 75 years and older undergoing potentially curative surgery.

METHODS

A total of 2,482 CRC patients at TNM stage I-III undergoing surgical treatment between 1995 and 2005 were evaluated, and patients were divided into a younger (<75 years old) and an elderly (≥75 years) group.

RESULTS

There were 2,482 CRC patients in this study, of which 2,194 (88.4 %) patients were in the younger group (mean age 57 years) and 288 (11.6 %) were in the elderly group (mean age 79 years). Significant differences were observed between the two groups with regard to the American Society of Anesthesiologists' score, tumor location, co-morbidities, emergency procedures, use of chemotherapy, proportion admitted to the ICU, length of ICU stay, causes of death, T/N stage and postoperative recurrence. The postoperative mortality increased from 4.8 % in the younger group to 8.3 % in the older group (p = 0.011). Although significant differences were found in the overall 5-year survival (73 vs. 56 %, p < 0.0001) and disease-free 5-year survival (68 vs. 54 %, p < 0.0001) between the two groups, the cancer-specific 5-year survival was similar (88 vs. 85 %, p = 0.089) in both groups.

CONCLUSIONS

Although elderly CRC patients have unique clinicopathological features, a higher postoperative mortality and a worse overall and disease-free survival compared with younger patients, the cancer-specific survival at five years is similar between elderly and younger patients. Elderly patients benefit from radical surgery and have a good postoperative oncological outcome, irrespective of their age.

Aspirin use after diagnosis improves survival in older adults with colon cancer: a retrospective cohort study

OBJECTIVES

To assess survival in relation to aspirin use after diagnosis in older adults with colon cancer.

DESIGN

Subgroup analysis of a previously published cohort and retrospective study.

SETTING

Individuals registered in the Eindhoven Cancer Registry (ECR) between 1998 and 2007, linked to prescriptions of low-dose aspirin (80 mg) registered in a community pharmacy database.

PARTICIPANTS

Five hundred thirty-six individuals aged 70 and older diagnosed with colon cancer with or without aspirin use after diagnosis.

MEASUREMENTS

Survival was analyzed with user status as a time-dependent covariate. Multivariate Poisson regression survival models were used to study the effect of aspirin on overall survival.

RESULTS

One hundred seven participants (20.0%) started aspirin after being diagnosed with colon cancer; 429 (80.0%) were not prescribed aspirin. Three hundred thirty-nine participants (63.2%) had died by the end of follow-up. Aspirin use after diagnosis was associated with longer overall survival (rate ratio (RR) = 0.51, 95% confidence interval (CI) = 0.38-0.70, P < .001). Multivariate proportional hazards regression analysis revealed that aspirin use was associated with longer overall survival (adjusted RR = 0.59, 95% CI = 0.44-0.81, P = .001).

CONCLUSION

Aspirin use after the diagnosis of colon cancer in older adults was associated with longer survival. Low-dose aspirin could be used as an effective adjuvant therapy in older adults with colon cancer.

Elderly patients with colon cancer have unique tumor characteristics and poor survival

BACKGROUND

The incidence of colon cancer increases with age, and colon cancer predominantly affects individuals >65 years old. However, there are limited data regarding clinical and pathologic factors, treatment characteristics, and survival of older patients with colon cancer. The objective of this study was to determine the effects of increasing age on colon cancer.

METHODS

Patients diagnosed with colon cancer between 1988 and 2006 were identified through the Los Angeles County Cancer Surveillance Program, in Southern California. Patients were stratified into 4 age groups: 18-49, 50-64, 65-79, and ≥80 years. Clinical and pathologic characteristics and disease-specific and overall survival were compared between patients from different age groups.

RESULTS

A total of 32,819 patients were assessed. Patients aged 18 to 49 and 65 to 79 years represented the smallest and largest groups, respectively. A near equal number of males and females were diagnosed with colon cancer in the 3 youngest age groups, whereas patients who were ≥80 years old were more commonly white and female. Tumor location was different between groups, and the frequency of larger tumors (>5 cm) was greatest in youngest patients (18-49 years). The oldest patients (≥80 years) were administered chemotherapy at the lowest frequency, and disease-specific and overall survival rates decreased with increasing age.

CONCLUSIONS

This investigation demonstrates that older age is associated with alterations in clinical and pathologic characteristics and decreased survival. This suggests that the phenotype of colon cancer and the efficacy of colon cancer therapies may be dependent on the age of patients.

Surgical treatment of colon cancer in patients aged 80 years and older : analysis of 31,574 patients in the SEER-Medicare database

BACKGROUND

Age-related disparities in colon cancer treatment exist, with older patients being less likely to receive recommended therapy. However, to the authors' knowledge, few studies to date have focused on receipt of surgery. The objective of the current study was to describe patterns of surgery in patients aged ≥ 80 years with colon cancer and examine outcomes with and without colectomy.

METHODS

Medicare beneficiaries aged ≥ 80 years with colon cancer who were diagnosed between 1992 and 2005 were identified from the Surveillance, Epidemiology, and End Results-Medicare database. Multivariable logistic regression analysis was used to assess factors associated with nonoperative management. Kaplan-Meier survival analysis determined 1-year overall and colon cancer-specific survival.

RESULTS

Of 31,574 patients, 80% underwent colectomy. Approximately 46% were diagnosed during an urgent/emergent hospital admission, with decreased 1-year overall survival (70% vs 86% for patients diagnosed during an elective admission) noted among these individuals. Factors found to be most predictive of nonoperative management included older age, black race, more hospital admissions, use of home oxygen, use of a wheelchair, being frail, and having dementia. For both operative and nonoperative patients, the 1-year overall survival rate was lower than the colon cancer-specific survival rate (operative patients: 78% vs 89%; nonoperative patients: 58% vs 78%).

CONCLUSIONS

The majority of older patients with colon cancer undergo surgery, with improved outcomes noted compared with nonoperative management. However, many patients who are not selected for surgery die of unrelated causes, reflecting good surgical selection. Patients undergoing surgery during an urgent/emergent admission have an increased short-term mortality risk. Because the earlier detection of colon cancer may increase the percentage of older patients undergoing elective surgery, the findings of the current study may have policy implications for colon cancer screening and suggest that age should not be the only factor driving cancer screening recommendations.

Endoscopic stenting is not as effective for palliation of colorectal obstruction in patients with advanced gastric cancer as emergency surgery

BACKGROUND

Although self-expandable metal stent (SEMS) insertion has been shown to be an effective therapy for palliation of obstruction from colorectal malignancy, the clinical efficacy of SEMS insertion in the palliation of colorectal obstruction from an extracolonic malignancy (ECM) has not been extensively evaluated.

OBJECTIVE

The aim of this study was to evaluate the clinical outcomes and complications of SEMSs compared with those of emergency surgery for relief of colorectal obstruction in patients with advanced gastric cancer (AGC).

DESIGN

Retrospective study.

PATIENTS

From January 2000 to December 2009, patients with AGC who were treated with SEMSs (N = 111) or emergency surgery (N = 69) for palliation of malignant colorectal obstruction were included.

INTERVENTION

SEMS insertion or surgery.

RESULTS

Although acute complications and stoma formations were lower in the SEMS group than in the surgery group, the clinical efficacy of SEMSs was inferior to emergency surgery (technical success, 73.9% vs 94.2%, P = .001; clinical success, 54.1% vs 75.4%, P = .005). SEMS-related complications occurred in 64.5%, including reobstruction (36.8%), stent migration (10.5%), perforation (13.2%), and bleeding (3.9%). The median duration of patency was not statistically different between the patients who underwent SEMS insertion and those who underwent emergency surgery (117 days vs 183 days, P = .105). Patients with fewer than 2 obstructive sites or less than 2 years to obstructive symptom onset after diagnosis of AGC showed better clinical outcomes after endoscopic stenting.

LIMITATIONS

Retrospective and single-center study.

CONCLUSIONS

SEMS insertion seems to be less effective than emergency surgery for the palliation of colorectal obstruction in patients with AGC. Further study is necessary to define those patients with ECM who may benefit from SEMS insertion.

Outcome of surgical treatment of colorectal cancer in the elderly

The aim of this study is to compare the clinical features and the perioperative and long-term outcomes after primary surgery for colorectal cancer (CRC) in the elderly population with those observed in younger patients. All the patients over the age of 55 who underwent primary surgery for CRC in our clinic from 1988 to 2008 were included in this study and divided into two age groups: 55-75 and >75 years considering the age of diagnosis. 914 consecutive patients were enrolled in the study (352 > 75 years). In the elderly group, tumors were predominantly right sided, and the overall number of comorbidities was statistical more frequent. Elderly patients underwent emergency surgery more than the control group (p = 0.0008). There were no significant differences between the two groups in terms of curative and palliative resections. The overall operative mortality rate was 5.9% in the study group compared with 2.1% in the control study (p = 0.0033). The overall 3-year, 5-year and 10-year survival rates were, respectively, 37, 16.2 and 5.1% in the study group, when compared with 52.3, 35.1 and 24.7% in the control group (p = 0.022, p = 0.0001 and p = 0.0001, respectively). More patients were lost during the follow-up in the elderly group (p = 0.0003) and more deaths unrelated to cancer were found in the study group compared with the control group (p = 0.0005). The cancer specific mortality was similar between the two groups. In conclusion, elderly patients that underwent major colorectal resection have an acceptable perioperative morbidity, mortality and survival rate when compared with younger patients. Age alone should not be considered a reason to deny surgery to these patients.

Colorectal cancer surgery in the elderly: limitations and drawbacks

PURPOSE

The purpose of this study was to evaluate the outcomes of colorectal cancer surgery among the elderly.

METHODS

From March 2002 until February 2010, 434 patients who presented to our institution with the initial diagnosis of colorectal cancer and were submitted to open curative colorectal cancer resections or some kind of palliative procedure either elective or emergencies were retrospectively reviewed. A total of 286 of these patients (65.8%) were below 75 years (group A) and 148 (34.2%) above 75 years (group B).

RESULTS

A procedure with curative intent was undertaken in 386 patients (88.9%), while forty-eight patients (11.1%) were submitted to a palliative procedure. Regarding the incidence of emergency operations, forty-five patients (15.7%) from group A and forty-four patients (29.7%) from group B were operated due to an emergency (obstructing, perforating or bleeding tumors; P < 0.001). Mean ASA score was 1.74 ± 0.84 and 2.32 ± 0.94 for groups A and B, respectively (P < 0.001). Mean TNM stage was 2.28 ± 1.00 and 2.74 ± 0.98 for groups A and B, respectively (P = 0.0001). Elderly patients exhibited increased incidence of post-operative complications and increased post-operative mortality compared with their younger counterparts (P = 0.002 and 0.001, respectively).

CONCLUSION

Colorectal cancer surgery in the elderly is a challenging clinical scenario. Treatment decision adjusted to each individual case is the ideal practice in order to maintain an acceptable balance between curative cancer resections and palliative procedures.

Impact of age on outcome after colorectal cancer surgery in the elderly - a developing country perspective

BACKGROUND

Colorectal cancer (CRC) is a major source of morbidity and mortality in the elderly population and surgery is often the only definitive management option. The suitability of surgical candidates based on age alone has traditionally been a source of controversy. Surgical resection may be considered detrimental in the elderly solely on the basis of advanced age. Based on recent evidence suggesting that age alone is not a predictor of outcomes, Western societies are increasingly performing definitive procedures on the elderly. Such evidence is not available from our region. We aimed to determine whether age has an independent effect on complications after surgery for colorectal cancer in our population.

METHODS

A retrospective review of all patients who underwent surgery for pathologically confirmed colorectal cancer at Aga Khan University Hospital, Karachi between January 1999 and December 2008 was conducted. Using a cut-off of 70 years, patients were divided into two groups. Patient demographics, tumor characteristics and postoperative complications and 30-day mortality were compared. Multivariate logistic regression analysis was performed with clinically relevant variables to determine whether age had an independent and significant association with the outcome.

RESULTS

A total of 271 files were reviewed, of which 56 belonged to elderly patients (≥ 70 years). The gender ratio was equal in both groups. Elderly patients had a significantly higher comorbidity status, Charlson score and American society of anesthesiologists (ASA) class (all p < 0.001). Upon multivariate analysis, factors associated with more complications were ASA status (95% CI = 1.30-6.25), preoperative perforation (95% CI = 1.94-48.0) and rectal tumors (95% CI = 1.21-5.34). Old age was significantly associated with systemic complications upon univariate analysis (p = 0.05), however, this association vanished upon multivariate analysis (p = 0.36).

CONCLUSION

Older patients have more co-morbid conditions and higher ASA scores, but increasing age itself is not independently associated with complications after surgery for CRC. Therefore patient selection should focus on the clinical status and ASA class of the patient rather than age.

Adherence to treatment guidelines in stage II/III rectal cancer in Alberta, Canada

AIMS

Evidence suggests that pre- and/or postoperative treatment benefits patients with stage II/III rectal cancer. This study aimed to quantify treatment patterns and adherence to treatment guidelines, and to identify barriers to having a consultation with an oncologist and barriers to receiving treatment in stage II/III rectal cancer, in a publicly funded medical care system.

MATERIALS AND METHODS

Patients with surgically treated stage II/III rectal adenocarcinoma, diagnosed from 2002 to 2005 in Alberta, a Canadian province with a population of 3 million, were included. Demographic and treatment information from the Alberta Cancer Registry were linked to data from electronic medical records, hospital discharge data and the 2001 Canadian Census. The study outcomes were 'not having an oncologist consultation' and 'not receiving guideline-based treatment'. The relative risks of the two outcomes in association with patient characteristics were estimated using multivariable log-binomial regression.

RESULTS

Of a total of 910 surgically treated stage II/III rectal adenocarcinoma patients, 748 (82%) had a consultation with an oncologist and 414 (45.5%) received treatment. Pre-/post-surgical treatment modalities and timing varied; 96 (10.5%) received neoadjuvant treatment only, 389 (42.7%) received adjuvant treatment only, 119 (13.1%) received both, and 306 (33.6%) had surgery alone. Factors related to not having a consultation with an oncologist included older age, co-morbidities, cancer stage II and region of residence. Older age was the most significantly associated factor with not receiving treatment (relative risk=2.23; 95% confidence interval: 1.89, 2.64).

CONCLUSIONS

Disparities exist in the receipt of treatment in stage II/III rectal cancer. Factors such as age, region of residence and stage should not be barriers to consulting an oncologist to discuss or receive treatment. The reasons for these disparities need to be identified and addressed.

Update on the indications and use of colonic stents

Self-expandable metal stent (SEMS) placement is a minimally invasive option for achieving acute colonic decompression in obstructed colorectal cancer. Colorectal stenting offers nonoperative, immediate, and effective colon decompression and allows bowel preparation for an elective oncologic resection. Patients who benefit the most are high-risk surgical patients and candidates for laparoscopic resection with complete obstruction, because emergency surgery can be avoided in more than 90% of patients. Colonic stent placement also offers effective palliation of malignant colonic obstruction, although it carries risks of delayed complications. When performed by experienced endoscopists, the technical success rate is high with a low procedural complication rate. Despite concerns of tumor seeding following endoscopic colorectal stent placement, no difference exists in oncologic long-term survival between patients who undergo stent placement followed by elective resection and those undergoing emergency bowel resection. Colorectal stents have also been used in selected patients with benign colonic strictures. Uncovered metal stents should be avoided in these patients, and fully covered stents are associated with high risk of migration. Patients with benign colonic stricture with acute colonic obstruction who are at high risk for emergency surgery can gain temporary relief of obstruction after SEMS placement; the stent can be removed en bloc with the colon specimen at surgery. This article reviews the techniques and indications of SEMS placement for benign and malignant colorectal obstructions.

Improving health for elderly people: an international health promotion and disease prevention agenda

Across the world, there are substantial but missed opportunities for promoting health of older persons and extending the healthy life span. Current approaches to health care rely on late detection and treatment of disease, and some of the most expensive systems of care have population health outcomes that are poor to mediocre. A majority of deaths and disability result from progression of preventable chronic diseases for which human behaviors are major contributing factors. An organized and aggressive agenda in health promotion and disease prevention emerges as an important part of the strategy to both promote health and control costs. After reviewing data on determinants of health and contribution of behavioral factors to morbidity and mortality, this paper presents the evidence for efficacy and effectiveness of specific behavioral and clinical interventions to reduce risk for many of the problems accounting for death and disability among elders. We address tobacco use, lack of exercise, inadequate nutrition, hypertension, delirium, obesity, falls, cancer screening, poor oral health, osteoporosis, immunizations and medication safety. Strategies for implementation of effective interventions present an international challenge.