Impact of time to surgery in locally advanced rectal cancer patients.

2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 719-719
Author(s):  
Madiha Naseem ◽  
Manwah Yeung ◽  
Suruthi Senthilvel ◽  
Pooya Dibajnia ◽  
Doshina Naila ◽  
...  

719 Background: Patients with locally advanced rectal cancer (LARC) undergo surgery at 6-8 weeks after neoadjuvant chemoradiation based on standard protocol. However, the optimal time to undergo surgery remains debatable. The goal of this study was to identify associations between time to surgery and additional variables with overall survival (OS) and recurrence rates in LARC patients. Methods: A retrospective chart review was conducted for 80 LARC patients with T3 or node positive disease, who have undergone neoadjuvant chemoradiation and surgery at St. Michael’s Hospital from January 1st 2005-December 31st 2015. Patients were divided into 4 groups based on time to surgery: 4-6 weeks (group 1), 6-8 weeks (group 2), 8-10 weeks (group 3), and > 10 weeks (group 4). Cox proportional hazards model was used to find associations with recurrence and OS. Results: Of the 80 patients, 67.5% (n = 54) were male and 32.5% (n = 26) were female. Median age at diagnosis was 59 years (range, 28-80 years). Median follow-up was 4.84 years. Recurrence occurred in 29% (n = 23) of patients. Incidence of death was 11% (n = 9). Pathologic complete response (pCR) was achieved in 15% (n = 12) of patients. Statin use during chemoradiation was prevalent in 25% (n = 20) of patients. Compared to group 1, patients in group 2 had a 14% reduction in the risk of recurrence (hazard ratio (HR): 0.86, 95% CI: 0.252.91); group 3 had a 69% reduction (HR: 0.31, 95% CI: 0.081.22) and group 4 had a 55% reduction (HR: 0.45, 95% CI: 0.073.08). There was no statistically significant difference in OS between the 4 groups. Furthermore, patients who took statins during chemoradiation had improved OS (HR: 5.42, 95% CI: 39.27.48, p < 0.019) with no difference in pCR rate. Conclusions: This study shows that surgery at 8-10 weeks after chemoradiation offers the best disease-free survival outcome. It also highlights a mortality benefit conferred by statin use during chemoradiation. This could be attributed to the radiosensitizing effects of statins, which allow tumor stem cells to undergo enhanced autophagy. Further prospective studies are warranted to investigate this therapeutic benefit.

2018 ◽  
Vol 8 (3) ◽  
pp. 36-41
Author(s):  
D. V. Kuzmichev ◽  
Z. Z. Mamedli ◽  
A. V. Polynovskiy ◽  
Zh. M. Madyarov ◽  
S. I. Tkachev ◽  
...  

Objective:to analyze treatment outcomes in patients with locally advanced rectal cancer that received various combinations of neoadjuvant chemotherapy and chemoradiotherapy.Materials and methods. In this retrospective study, we analyzed a cohort of prospectively recruited patients with stage mrT3(CRM+)/ T4N0–2M0 locally advanced rectal cancer. Participants were divided into three groups. Patients in Group 1 received preoperative longcourse radiotherapy given concurrently with capecitabine, followed by 2–6 cycles of consolidation chemotherapy with capecitabine and oxaliplatin (CapOx). In Group 2, patients initially received 1–2 cycles of induction chemotherapy with CapOx, followed by radiotherapy + capecitabine, and then consolidation chemotherapy with CapOx (“sandwich” method). Participants in Group 3 were treated with 1–3 cycles of induction CapOx chemotherapy with subsequent long-course chemoradiotherapy. After the combination treatment, all patients underwent surgery. The primary endpoint of this study was therapeutic pathomorphosis. Secondary endpoints included complete clinical response, toxicity, local recurrence, distant metastasis, and relapse-free survival.Results.This study included 155 patients (98 in Group 1, 44 in Group 2, and 13 in Group 3). Grade III toxicity was documented in 6.12 %, 4.55 %, and 23.08 % of cases in Groups 1, 2, and 3 respectively. None of the patients had grade IV toxicity. Grade III therapeutic pathomorphosis was achieved in 33.7 %, 22.7 %, and 23.1 % of patients in Groups 1, 2, and 3 respectively. Grade IV therapeutic pathomorphosis was observed in 14.3 %, 15.9 %, and 7.69 % of patients in Groups 1, 2, and 3 respectively. Complete clinical response was registered in 16.3 %, 11.4 %, and 0 % of cases in Groups 1, 2, and 3 respectively. Median follow-up was 47.2 months with no signs of progression. Relapses were observed in 1.02 % and 2.27 % of patients from Group 1 and Group 2 respectively, whereas Group 3 demonstrated no relapses. A total of 11.22 %, 13.64 %, and 23.1 % of participants from Groups 1, 2, and 3 respectively developed distant metastasis.Conclusion.Polychemotherapy used within the consolidation and «sandwich» treatment regimens is a promising option for the treatment of locally advanced rectal cancer. The efficacy of induction chemotherapy should be further studied with a larger sample.


2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 804-804
Author(s):  
Gota Saito ◽  
Sotaro Sadahiro ◽  
Hiroshi Miyakita ◽  
Kazutake Okada ◽  
Akira Tanaka ◽  
...  

804 Background: Multidisciplinary treatment had been a standard of care for locally advanced rectal cancer. Serum CEA had been reported as one of the predictive factors to CRT, however, serum CEA levels may change after CRT and surgery. We examined the relations of serum CEA before CRT, after CRT, and after surgery to histological response and outcomes. Methods: The subjects were 149 patients with cStage II or III adenocarcinoma of the rectum who underwent surgery after CRT from 2005 through 2013. A total dose of 40 to 45 Gy with concurrent oral UFT or S-1 was delivered. Surgery was performed 6 to 8 weeks after CRT. A serum CEA > 5 ng/mL was defined as positive. Patients with negative serum CEA before CRT were designated as group 1. Patients with positive serum CEA before CRT that became negative after CRT were designated as group 2. Patients with positive serum CEA after CRT that became negative after surgery were designated as group 3, and patients with positive serum CEA after CRT as well as after surgery were designated as group 4. The median follow-up period of the survivors was 60.4 months. Results: The numbers of patients in Groups 1, 2, 3, and 4 were 55 (37%), 41 (28%), 37 (25%), and 16 (11%), respectively. The incidences of pCR, T downstaging, and N downstaging did not differ significantly among the groups (p = 0.094, 0.060, and 0.346). Rates of marked regression (TRG Grade 1 or 2) were 55% in Group 1, 42% in Group 2, 16% in Group 3, 25% in group 4. The rates were significantly higher in groups 1 and 2 (p = 0.001).5y DFS was 76% in group 1, 75% in group 2, 77% in group 3, and 48% in group 4 and was significantly lower in group 4 (p = 0.024). 5y OS was 88% in group 1, 91% in group 2, 85% in group 3, and 68% in group 4 and was significantly lower in group 4 than that in groups 1 and 2 (p = 0.03, 0.019). Conclusions: In patients with rectal cancer who received CRT, changes in serum CEA levels before and after CRT and after surgery were intimately related to the histological response of the primary lesion. Patients who continued to have positive serum CEA levels after surgery had poor outcomes, strongly suggesting the presence of occult distant metastasis.


2021 ◽  
Author(s):  
Rodrigo Otavio de Castro Araujo ◽  
Fernando Meton Vieira ◽  
Ana Paula Victorino Ornellas ◽  
Claudia Carrada Torres ◽  
Ivanir Martins ◽  
...  

Abstract Background: Neoadjuvant chemoradiotherapy (neoCRT) followed by surgery is the standard of care for locally advanced rectal cancer (LARC), but the emergence of different drug regimens may result in different response rates. Good clinical response translates into greater sphincter preservation, but quality of life (QOL) may be impaired after treatment due to chemoradiotherapy and surgical side effects. Objective: To prospectively evaluate the QOL in a randomized trial comparing two neoadjuvant regimens for locally advanced rectal cancer.Methods: Stage II and III rectal cancer patients were randomized to receive neoCRT with either capecitabine (Group 1) or 5-Fu and leucovorin (Group 2) concomitant to long course radiotherapy. Clinical downstaging was accessed using MRI 6-8 weeks after treatment. EORTCs QLQ C30 and CR38 were applied before treatment (T0), after neoCRT (T1), after rectal resection (T2), early after adjuvant chemotherapy (T3), and one year after end of treatment or stoma closure (T4). Wexner scale was used for continence evaluation at T4. A C30SummaryScore (Geisinger et cols) was calculated to compare QOL results. Results: 32 patients were assigned to Group 1 and 31 to Group 2. Clinical downstaging occurred in 70.0% of Group 1 and 53.3% of Group 2 (p=0.288). pCR was 23.3% in group 1 and 10.0% in Group 2(p=0.165). Sphincter preservation was 83.3% in Group 1 and 80.0% in Group 2(p=0.111). No difference in QOL was detected comparing the two treatment groups before and after neoCRT. C30SummaryScore detected improvement comparing T0 to T1 and deterioration comparing T1 to T2 (p=0.025), and global health status improved at T1 and T4 compared to T0(p=0.004). Mean Wexner scale score was 9.2, and a high score correlated with symptoms of diarrhea and defecation problems at T4.Conclusions: Clinical and pathological response rates were equivalent in both treatment groups. QOL was improved after neoCRT corresponding to clinical response but decreased following rectal resection. Wexner score was high after sphincter preservation. C30SummaryScore was a useful tool to detect differences in overall QOL in EORTCs multiple item questionnaire.Trial registration: NCT03428529. Registered 02/09/2018 - Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT03428529.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. e15578-e15578
Author(s):  
Hyehyun Jeong ◽  
Yeonghak Bang ◽  
Hyeon-Su Im ◽  
Jihoon Kang ◽  
Dok Hyun Yoon ◽  
...  

e15578 Background: Although dCRT is the standard treatment for pts who have locally advanced unresectable EC or refuse surgery, the prognosis of these pts remains dismal. There are urgent needs to develop the novel treatment strategy based on prognostic stratification after dCRT. Methods: A total of 382 pts with locoregional EC without distant metastasis except for supraclavicular lymph node who received dCRT at Asan Medical Center in South Korea from 2006 to 2015 were included. Overall survival (OS) and progression-free survival (PFS) were analyzed using Kaplan-Meier method. Risk factors were analyzed using Cox regression. Risk scores were calculated by multiplying coefficients in Cox proportional hazard model. Results: Baseline characteristics were as follows: median age = 66 yrs (range: 40-85); male = 359 pts (94.0%); squamous cell carcinoma = 375 (98.2%); cTNM stage (AJCC 8th) I = 40 (10.5%), II = 122 (31.9%), III = 128 (33.5%), IV = 92 (24.1%). During median follow-up of 52.9 mo, median PFS was 13.5 mo (95% CI, 10.9-16.1), and median OS was 26.7 mo (95% CI, 19.8-33.7). In the univariate analyses, sex (only for PFS), weight loss (≥ 5 kg) during dCRT, cT stage, cN stage, cTNM stage, clinical response after dCRT, reason for dCRT were significant prognostic factors for PFS and OS. In the multivariate analyses, clinical response after dCRT, cTNM stage, and weight loss were independent prognostic factors for PFS and OS (Table). Risk-scoring model using these factors stratified pts into four groups: for median PFS (p < 0.0001), group 1 = 58.2 mo (95% CI, 43.5-73.0), group 2 = 17.0 mo (95% CI, 11.9-22.1), group 3 = 9.0 mo (95% CI, 7.0-11.1), and group 4 = 3.9 mo (95% CI, 3.7-4.2); for median OS (p < 0.0001), group 1 = 106.2 mo (95% CI, 44.9-167.6), group 2 = 38.0 mo (95% CI, 24.4-51.5), group 3 = 13.0 mo (95% CI, 8.5-17.6), and group 4 = 8.0 mo (95% CI, 7.4-8.6). Conclusions: In dCRT-treated locoregional EC pts, survival outcome significantly varied according to baseline clinical stage, treatment response, and dynamic change in body weight. Different treatment and surveillance strategies based on the risk score might be needed in these pts.[Table: see text]


2020 ◽  
Vol 66 (2) ◽  
pp. 155-159
Author(s):  
Andrey Polynovskiy ◽  
Dmitriy Kuzmichev ◽  
Zaman Mamedli ◽  
Yu. Suraeva ◽  
Zhasur Madyarov ◽  
...  

Aim: In this article extramural venous invasion (EMVI) in patients with locally advanced rectal cancer (LARC) is evaluated as a risk factor of distant metastasis. Materials and methods: This study is based on experience made in proctological department of N.N. Blokhin National Medical Research Center of Oncology. Retrospective analysis was performed on a group of 230 patients with LARC with stage mrT3(CRM+)/T4N0-2M0. All patients underwent long course of chemoradiotherapy with capecetabine, then 2-4 courses of chemotherapy CapOx were conducted in induction and/or consolidation scheme. Results: There were no critical differences in the effect of EMVI (+) on the development of reccurences in comparison with the EMVI (-) group (p>0.05). Along with that EMVI(+) patients were significantly associated with distant metastasis (43 patients - 27,4%) then in EMVI(-) group (2 - 2,74%) (p<0,05). The positive mr-EMVI result was more likely to be present in patients with T4 then in T3 group (p<0,05). A positive EMVI status was 81,4% in patients with the III stage, which is significant higher than in patients with II stage - 55,7% (p<0,05). 3-year recurrent-free survival of patients with EMVI(+) was 64%, compared with the group of patients with EMVI (-) - 93%, which was a significant difference (HR 0.03; 95% CI, 0.08-0.19 p<0.001). Conclusion: The definition of extramural vascular invasion indicates a poor prognosis and could be used for treatment planning of neoadjuvant chemoradiation and adjuvant chemotherapy.


VASA ◽  
2020 ◽  
Vol 49 (4) ◽  
pp. 281-284
Author(s):  
Atıf Yolgosteren ◽  
Gencehan Kumtepe ◽  
Melda Payaslioglu ◽  
Cuneyt Ozakin

Summary. Background: Prosthetic vascular graft infection (PVGI) is a complication with high mortality. Cyanoacrylate (CA) is an adhesive which has been used in a number of surgical procedures. In this in-vivo study, we aimed to evaluate the relationship between PVGI and CA. Materials and methods: Thirty-two rats were equally divided into four groups. Pouch was formed on back of rats until deep fascia. In group 1, vascular graft with polyethyleneterephthalate (PET) was placed into pouch. In group 2, MRSA strain with a density of 1 ml 0.5 MacFarland was injected into pouch. In group 3, 1 cm 2 vascular graft with PET piece was placed into pouch and MRSA strain with a density of 1 ml 0.5 MacFarland was injected. In group 4, 1 cm 2 vascular graft with PET piece impregnated with N-butyl cyanoacrylate-based adhesive was placed and MRSA strain with a density of 1 ml 0.5 MacFarland was injected. All rats were scarified in 96th hour, culture samples were taken where intervention was performed and were evaluated microbiologically. Bacteria reproducing in each group were numerically evaluated based on colony-forming unit (CFU/ml) and compared by taking their average. Results: MRSA reproduction of 0 CFU/ml in group 1, of 1410 CFU/ml in group 2, of 180 200 CFU/ml in group 3 and of 625 300 CFU/ml in group 4 was present. A statistically significant difference was present between group 1 and group 4 (p < 0.01), between group 2 and group 4 (p < 0.01), between group 3 and group 4 (p < 0.05). In terms of reproduction, no statistically significant difference was found in group 1, group 2, group 3 in themselves. Conclusions: We observed that the rate of infection increased in the cyanoacyrylate group where cyanoacrylate was used. We think that surgeon should be more careful in using CA in vascular surgery.


2019 ◽  
Vol 17 (4) ◽  
pp. 354-364
Author(s):  
Hassan Al-Thani ◽  
Moamena El-Matbouly ◽  
Maryam Al-Sulaiti ◽  
Noora Al-Thani ◽  
Mohammad Asim ◽  
...  

Background: We hypothesized that perioperative HbA1c influenced the pattern and outcomes of Lower Extremity Amputation (LEA). Methods: A retrospective analysis was conducted for all patients who underwent LEA between 2000 and 2013. Patients were categorized into 5 groups according to their perioperative HbA1c values [Group 1 (<6.5%), Group 2 (6.5-7.4%), Group 3 (7.5-8.4%), Group 4 (8.5-9.4%) and Group 5 (≥9.5%)]. We identified 848 patients with LEA; perioperative HbA1c levels were available in 547 cases (Group 1: 18.8%, Group 2: 17.7%, Group 3: 15.0%, Group 4: 13.5% and Group 5: 34.9%). Major amputation was performed in 35%, 32%, 22%, 10.8% and 13.6%, respectively. Results: The overall mortality was 36.5%; of that one quarter occurred during the index hospitalization. Mortality was higher in Group 1 (57.4%) compared with Groups 2-5 (46.9%, 38.3%, 36.1% and 31.2%, respectively, p=0.001). Cox regression analysis showed that poor glycemic control (Group 4 and 5) had lower risk of mortality post-LEA [hazard ratio 0.57 (95% CI 0.35-0.93) and hazard ratio 0.46 (95% CI 0.31-0.69)]; this mortality risk persisted even after adjustment for age and sex but was statistically insignificant. The rate of LEA was greater among poor glycemic control patients; however, the mortality was higher among patients with tight control. Conclusion: The effects of HbA1c on the immediate and long-term LEA outcomes and its therapeutic implications need further investigation.


2021 ◽  
Vol 9 (3) ◽  
pp. e001610
Author(s):  
Incheol Seo ◽  
Hye Won Lee ◽  
Sang Jun Byun ◽  
Jee Young Park ◽  
Hyeonji Min ◽  
...  

BackgroundNeoadjuvant chemoradiation therapy (CRT) is a widely used preoperative treatment strategy for locally advanced rectal cancer (LARC). However, a few studies have evaluated the molecular changes caused by neoadjuvant CRT in these cancer tissues. Here, we aimed to investigate changes in immunotherapy-related immunogenic effects in response to preoperative CRT in LARC.MethodsWe analyzed 60 pairs of human LARC tissues before and after irradiation from three independent LARC cohorts, including a LARC patient RNA sequencing (RNA-seq) dataset from our cohort and GSE15781 and GSE94104 datasets.ResultsGene ontology analysis showed that preoperative CRT significantly enriched the immune response in LARC tissues. Moreover, gene set enrichment analysis revealed six significantly enriched Kyoto Encyclopedia of Genes and Genomes pathways associated with downregulated genes, including mismatch repair (MMR) genes, in LARC tissues after CRT in all three cohorts. Radiation also induced apoptosis and downregulated various MMR system-related genes in three colorectal cancer cells. One patient with LARC showed a change in microsatellite instability (MSI) status after CRT, as demonstrated by the loss of MMR protein and PCR for MSI. Moreover, CRT significantly increased tumor mutational burden in LARC tissues. CIBERSORT analysis revealed that the proportions of M2 macrophages and CD8 T cells were significantly increased after CRT in both the RNA-seq dataset and GSE94104. Notably, preoperative CRT increased various immune biomarker scores, such as the interferon-γ signature, the cytolytic activity and the immune signature.ConclusionsTaken together, our findings demonstrated that neoadjuvant CRT modulated the immune-related characteristics of LARC, suggesting that neoadjuvant CRT may enhance the responsiveness of LARC to immunotherapy.


2021 ◽  
pp. 197140092098356
Author(s):  
Marwan Alkrenawi ◽  
Michael Osherov ◽  
Azaria Simonovich ◽  
Jonathan Droujin ◽  
Ron Milo ◽  
...  

Background Cervical discopathy and demyelinating lesions often co-exist in patients with multiple sclerosis (MS). Our study examines the possible association between these two pathologies. Methods Medical records and cervical magnetic resonance imaging scans of MS patients with cervical discopathy who were seen at our MS clinic during 2018 were retrospectively reviewed. The severity of the disc disease was classified as grade I (no compression), grade II (compression of the dural sac) and grade III (cord compression). The spinal cord in each scan was divided into six segments corresponding to the intervertebral space of the spine (C1–C6). Each segment was defined as containing demyelinating lesion and disc pathology (group 1), demyelinating lesion without disc pathology (group 2), disc pathology without demyelinating lesion (group 3) and no demyelinating lesion or disc pathology (group 4). Fisher’s exact test was used to test the association between demyelinating lesions and disc pathology. Results Thirty-four MS patients with cervical discopathy were included in the study (26 females; average age 42.9 ± 13.7 years; average disease duration 8.4 ± 5.4 years). A total of 204 spinal cord segments were evaluated. Twenty-four segments were classified as group 1, 27 segments as group 2, 52 segments as group 3 and 101 segments as group 4. There was no association between demyelinating lesions and the grade of disc disease ( p = 0.1 for grade I, p = 0.3 for grade II and p = 1 for grade III disc disease). Conclusion Our study did not find any association between cervical disc disease and demyelinating spinal cord lesion.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yu Liu ◽  
Jing Li ◽  
Wanyu Zhang ◽  
Yihong Guo

AbstractOestradiol, an important hormone in follicular development and endometrial receptivity, is closely related to clinical outcomes of fresh in vitro fertilization-embryo transfer (IVF-ET) cycles. A supraphysiologic E2 level is inevitable during controlled ovarian hyper-stimulation (COH), and its effect on the outcome of IVF-ET is controversial. The aim of this retrospective study is to evaluate the association between elevated serum oestradiol (E2) levels on the day of human chorionic gonadotrophin (hCG) administration and neonatal birthweight after IVF-ET cycles. The data of 3659 infertile patients with fresh IVF-ET cycles were analysed retrospectively between August 2009 and February 2017 in First Hospital of Zhengzhou University. Patients were categorized by serum E2 levels on the day of hCG administration into six groups: group 1 (serum E2 levels ≤ 1000 pg/mL, n = 230), group 2 (serum E2 levels between 1001 and 2000 pg/mL, n = 524), group 3 (serum E2 levels between 2001 and 3000 pg/mL, n = 783), group 4 (serum E2 levels between 3001 and 4000 pg/mL, n = 721), group 5 (serum E2 levels between 4001 and 5000 pg/mL, n = 548 ), and group 6 (serum E2 levels > 5000 pg/mL, n = 852). Univariate linear regression was used to evaluate the independent correlation between each factor and outcome index. Multiple logistic regression was used to adjust for confounding factors. The LBW rates were as follows: 3.0% (group 1), 2.9% (group 2), 1.9% (group 3), 2.9% (group 4), 2.9% (group 5), and 2.0% (group 6) (P = 0.629), respectively. There were no statistically significant differences in the incidences of neonatal LBW among the six groups. We did not detect an association between peak serum E2 level during ovarian stimulation and neonatal birthweight after IVF-ET. The results of this retrospective cohort study showed that serum E2 peak levels during ovarian stimulation were not associated with birth weight during IVF cycles. In addition, no association was found between higher E2 levels and increased LBW risk. Our observations suggest that the hyper-oestrogenic milieu during COS does not seem to have adverse effects on the birthweight of offspring after IVF. Although this study provides some reference, the obstetric-related factors were not included due to historical reasons. The impact of the high estrogen environment during COS on the birth weight of IVF offspring still needs future research.


Sign in / Sign up

Export Citation Format

Share Document