Open Colorectal Surgery Research Articles

WP1.14 - Evaluation of mesh closure of laparotomy and extraction incisions in open and laparoscopic colorectal surgery: A systematic review and meta-analysis

Abstract Background In colorectal surgery, postoperative evisceration and incisional hernia (IH) were not only noted after open procedures, but also at extraction incision (EI) sites used in laparoscopic resections. Few techniques, including using different sutures, closure techniques, and surgical meshes, have been evaluated in the literature to prevent the occurrence of IH and postoperative wound failure. This systematic review investigates the efficacy and safety of using prophylactic mesh on closure of midline laparotomy or extraction incision (EI) in colorectal oncological and non-oncological resections. Method Literature databases, including PubMed, Cochrane, Science Direct and Google Scholar, were searched for studies comparing the use of prophylactic mesh to conventional suture closure in colorectal operations, either in laparotomy closure in open surgery or EI closure in laparoscopic procedures, regardless of the indication; oncological and non-oncological. Primary endpoints were identified as incisional hernia (IH), and postoperative evisceration. Other outcomes included surgical site infection (SSI), seroma formation and length of hospital stay (LOS). Results Six studies fulfilled the inclusion criteria and studied 1,398 patients. Occurrence of IH was significantly reduced on using mesh closure compared to suture closure (OR 0.23, P=0.00001), while there was no statistically significant difference in evisceration rate (OR 0.51, P=0.25). Additionally, no notable difference was identified between both groups in terms of SSI (OR 1.20, P=0.54), postoperative seroma (OR 1.80, P=0.13), and LOS (MD -0.54, P=0.63). Conclusion The use of prophylactic mesh on closing laparotomy incision or EI for open and laparoscopic colorectal resections reduces the risk of developing IH. There were no significant safety concerns; however, further randomised trials may provide more creditable results.

Impact of small-bite (5 mm) fascial closure on the incidence of incisional hernia following open colorectal cancer surgery: randomized clinical trial.

Incisional hernia is frequently observed after open colorectal cancer surgery, and should be considered a serious short- and long-term health issue. The present study evaluated the efficacy of small-bite abdominal closure in reducing the incidence of incisional hernia in this patient group. An RCT was conducted between June 2019 and June 2022. A total of 173 patients who underwent open colorectal cancer surgery were assigned randomly to one of two groups to undergo fascial closure with either small bites (87) or conventional bites (86). The incisional hernia rate was accepted as the primary outcome, and surgical-site infection as the secondary outcome. The incisional hernia rates at 1 year were 7 and 27% in the small- and conventional-bite groups respectively (P < 0.001). This rate increased to 9 and 31% at the end of the second year (P < 0.001). Surgical-site infections occurred in 18% of the small-bite group and 31% of the conventional-bite group (P = 0.03). Compared with the conventional-bite group, the small-bite group had higher suture/wound length ratios (mean(s.d.) 5.18(0.84) versus 3.67(0.57); P < 0.001) and a longer fascial closure time 14.1(4.64) versus 12.9(2.39) min; P = 0.03). Small-bite closure with 5-mm tissue bites placed 5 mm apart reduced the incidence of incisional hernia and surgical-site infection after open colorectal cancer surgery.

The Influence of Analgesic Wound Infiltration on Postoperative Pain and Inflammatory Cytokines in Open Colorectal Surgery: A Randomized Comparative Pilot Study.

Background and Objectives: Surgical wound analgesia has been analyzed in many studies, but few have focused on its relationship with inflammatory markers. As such, we aimed to determine the influence of analgesic surgical wound infiltration in open colorectal surgery on the seric levels of pro- and anti-inflammatory markers and the associated efficacy in postoperative pain control. Materials and Methods: Forty patients who underwent open colorectal surgery were prospectively randomized: group 0, epidural analgesia; group 1, intravenous analgesia (control), group 2, preincision and prelaparoraphy infiltration; and, group 3, prelaparoraphy infiltration. Wound infiltration was performed with ropivacaine. We analyzed the levels of IL-6 and IL-10 cytokines before and 6 h after surgery and their correlation with pain scores. Results: The postoperative Il-6 levels were significantly lower in group 0 than in the control (p = 0.041). The postoperative Il-10 levels were significantly higher in group 3 (p = 0.029) than in the control. Six hours after the operation, the pain scores were significantly lower in all groups than in the control (p = 0.005, p = 0.022, and p = 0.017 for groups 0, 2, and 3, respectively). Pain scores were significantly correlated with Il-10 levels in group 2 (p = 0.047); in group 3, IL-10 levels directly correlated with those of Il-6 (p = 0.026). Conclusions: The analgetic effect of preincisional and prelaparoraphy analgetic infiltration was efficient. The analgetic infiltration of the surgical wound prior to closure stimulates both the inflammatory activator and regulator interleukins.

Comparison of Clinical Outcomes Between Laparoscopic and Open Surgery in Colorectal Cancer Patients.

Our research compares the clinical results of open surgery versus laparoscopic surgery for colorectal malignancies. Our analysis focused on a database that included data on patients with colorectal cancer who had laparoscopic or open surgery for stages I to III at a prestigious healthcare institute in India. Two groups of 50 patients underwent laparoscopic and 50 underwent conventional open colorectal surgery (OCRS and LCRS, respectively) throughout the same time. Patient demographics, operation data, initial postoperative outcomes, follow-up appointments, pathology results, and cancer stages were examined. The LCRS group had a much longer operation time compared to the OCRS. Subjects in the LCRS group experienced a notably accelerated recovery after surgery. The hospital stay for the OCRS group was considerably longer compared to that in the LCRS group. Laparoscopic colorectal surgery is a reliable and convenient alternative to the traditional open approach, providing comparable oncological efficacy.

Outcomes before and after Implementation of the ERAS (Enhanced Recovery after Surgery) Protocol in Open and Laparoscopic Colorectal Surgery: A Comparative Real-World Study from Northern Italy.

Enhanced Recovery After Surgery (ERAS) protocols have changed perioperative care, aiming to optimize patient outcomes. This study assesses ERAS implementation effects on postoperative complications, length of hospital stay (LOS), and mortality in colorectal cancer (CRC) patients. A retrospective real-world analysis was conducted on CRC patients undergoing surgery within a Northern Italian Cancer Registry. Outcomes including complications, re-surgeries, 30-day readmission, mortality, and LOS were assessed in 2023, the year of ERAS protocol adoption, and compared with data from 2022. A total of 158 surgeries were performed, 77 cases in 2022 and 81 in 2023. In 2023, a lower incidence of postoperative complications was observed compared to that in 2022 (17.3% vs. 22.1%), despite treating a higher proportion of patients with unfavorable prognoses. However, rates of reoperations and readmissions within 30 days post-surgery increased in 2023. Mortality within 30 days remained consistent between the two groups. Patients diagnosed in 2023 experienced a statistically significant reduction in LOS compared to those in 2022 (mean: 5 vs. 8.1 days). ERAS protocols in CRC surgery yield reduced postoperative complications and shorter hospital stays, even in complex cases. Our study emphasizes ERAS' role in enhancing surgical outcomes and recovery.

Colorectal cancer: immune response in laparoscopic versus open colorectal surgery

Colorectal cancer: immune response in laparoscopic versus open colorectal surgery

Differences in the Receipt of Regional Anesthesia Based on Race and Ethnicity in Colorectal Surgery

Health equity in pain management during the perioperative period continues to be a topic of interest. The authors evaluated the association of race and ethnicity with regional anesthesia in patients who underwent colorectal surgery and characterized trends in regional anesthesia. Using the American College of Surgeons National Surgical Quality Improvement Program database from 2015 to 2020, the research team identified patients who underwent open or laparoscopic colorectal surgery. Associations between race and ethnicity and use of regional anesthesia were estimated using logistic regression models. The final sample size was 292,797, of which 15.6% (n = 45,784) received regional anesthesia. The unadjusted rates of regional anesthesia for race and ethnicity were 15.7% white, 15.1% Black, 12.8% Asian, 29.6% American Indian or Alaska Native, 16.3% Native Hawaiian or Pacific Islander, and 12.4% Hispanic. Black (odds ratio [OR] 0.93, 95% confidence interval [CI] 0.90-0.96, p < 0.001) and Asian (OR 0.76, 95% CI 0.71-0.80, p < 0.001) patients had lower odds of regional anesthesia compared to white patients. Hispanic patients had lower odds of regional anesthesia compared to non-Hispanic patients (OR 0.72, 95% CI 0.68-0.75, p < 0.001). There was a significant annual increase in regional anesthesia from 2015 to 2020 for all racial and ethnic cohorts (p < 0.05). There was an annual increase in the use of regional anesthesia, yet Black and Asian patients (compared to whites) and Hispanics (compared to non-Hispanics) were less likely to receive regional anesthesia for colorectal surgery. These differences suggest that there are racial and ethnic differences in regional anesthesia use for colorectal surgery.

Resection margins, lymph node harvest and 3 year survival in open and laparoscopic colorectal cancer surgery; a prospective cohort study

IntroductionLaparoscopic colorectal cancer surgery has been gaining popularity in the last decade. However, there are concerns about adequate lymph node dissection and safe resection margins in laparoscopic colorectal cancer surgery. This study was aimed at comparing the lymph node (LN) clearance and surgical resection margins and 3-year survival for open and laparoscopic colorectal cancer surgery.MethodA pre-tested interviewer administered questionnaire was used to assess the adoption of the laparoscopic approach by Sri Lankan surgeons. Data was collected prospectively from patients who underwent open or laparoscopic colorectal cancer surgery at the University Surgical Unit of the National Hospital of Sri Lanka from April 2016 to May 2019. The histopathology records were analysed to determine the longitudinal and circumferential resection margins(CRM) and the number of lymph nodes harvested. The resection margins were classified as positive or negative. The total number of LN examined was evaluated. Presence of local recurrence and liver metastasis was determined by contrast enhanced CT scan during 3-years of follow up. Chi square, T test and z test for proportions were used to compare CRM, LN harvest and survival rates between the groups.ResultsOf the surgeons interviewed only 11 (18.4%) performed laparoscopic colorectal cancer surgery. A total of 137 patients (83 males and 54 females) were studied. Eighty-one procedures were laparoscopic and 56 procedures were open. All patients had clear longitudinal resection margins. Seventy-eight patients in the laparoscopic group (96%) and 51 patients (91%) in the open group had clear CRM (p > 0.05). A total of 2188 LNs (mean 15.9) were resected in all procedures. Six-hundred-eighty-nine lymph nodes were removed during open procedures (mean 12.3, SD 0.4) and 1499 (mean 18.5, SD 0.6) were removed during laparoscopy (p < 0.05). At 3 years follow-up the disease-free survival in the laparoscopic and open colon cancer patients was 27/41 (65.8%) and 16/29 (55.1%) respectively (p = 0.35). Disease free survival in the laparoscopic and open rectal cancer patients was 23/38 (60.5%) and 13/25 (52.0%) respectively (p = 0.40). Four patients were lost during follow-up.Discussion and conclusionCRM was comparable in the two groups. Laparoscopic group had a significantly higher LN harvest. Three-year survival rates were similar in the two groups. Acceptable results can be obtained with laparoscopic colorectal cancer surgery.

The Effectiveness of Ultrasound-Guided, Continuous, Bilateral Erector Spinae Plane Block in Perioperative Pain Management of Patients Undergoing Colorectal Surgery: A Randomized, Controlled, Double Blind, Prospective Trial

Open and laparoscopic colorectal surgeries, while essential in the management of various colorectal pathologies, are associated with significant postoperative pain. Effective perioperative pain management strategies remain an anesthesiologic challenge. The erector spinae plane block (ESPB), a novel peripheral nerve block, has gained attention for its potential in providing analgesia for a wide variety of surgeries. This study aimed to evaluate the effectiveness of continuous, bilateral ultrasound-guided ESPB in perioperative pain management of patients undergoing colectomy. This prospective, randomized, controlled, double-blind trial included 40 adult patients scheduled for elective open or laparoscopic colectomy. Patients undergoing open colectomy as well as patients undergoing laparoscopic colectomy were randomly allocated into two groups: the ESPB group (n = 20) and the control group (n = 20). All patients received preoperatively ultrasound-guided, bilateral ESPB with placement of catheters for continuous infusion. Patients in the ESPB group received 0.375% ropivacaine, while patients in the control group received sham blocks. All patients received standardized general anesthesia and multimodal postoperative analgesia. Pain scores, perioperative opioid consumption, and perioperative outcomes were assessed. Patients in the ESPB group required significantly less intraoperative (p &lt; 0.001 for open colectomies, p = 0.002 for laparoscopic colectomies) and postoperative opioids (p &lt; 0.001 for open colectomies, p = 0.002 for laparoscopic colectomies) and had higher quality of recovery scores on the third postoperative day (p = 0.002 for open and laparoscopic colectomies). Patients in the ESPB group did not exhibit lower postoperative pain scores compared to those in the control group (p &gt; 0.05 at various time points), while patients in both groups reported comparable satisfaction scores with their perioperative pain management (p = 0.061 for open colectomies, and p = 0.078 in laparoscopic colectomies). No complications were reported. ESPB is a novel and effective strategy in reducing perioperative opioid consumption in patients undergoing colectomy. This technique, as part of a multimodal analgesic plan and enhanced recovery after surgery protocols, can be proven valuable in improving the comfort and satisfaction of patients undergoing colorectal surgery.

Extended Analysis of Raman Spectra Using Artificial Intelligence Techniques for Colorectal Abnormality Classification.

Raman spectroscopy (RS) techniques are attracting attention in the medical field as a promising tool for real-time biochemical analyses. The integration of artificial intelligence (AI) algorithms with RS has greatly enhanced its ability to accurately classify spectral data in vivo. This combination has opened up new possibilities for precise and efficient analysis in medical applications. In this study, healthy and cancerous specimens from 22 patients who underwent open colorectal surgery were collected. By using these spectral data, we investigate an optimal preprocessing pipeline for statistical analysis using AI techniques. This exploration entails proposing preprocessing methods and algorithms to enhance classification outcomes. The research encompasses a thorough ablation study comparing machine learning and deep learning algorithms toward the advancement of the clinical applicability of RS. The results indicate substantial accuracy improvements using techniques like baseline correction, L2 normalization, filtering, and PCA, yielding an overall accuracy enhancement of 15.8%. In comparing various algorithms, machine learning models, such as XGBoost and Random Forest, demonstrate effectiveness in classifying both normal and abnormal tissues. Similarly, deep learning models, such as 1D-Resnet and particularly the 1D-CNN model, exhibit superior performance in classifying abnormal cases. This research contributes valuable insights into the integration of AI in medical diagnostics and expands the potential of RS methods for achieving accurate malignancy classification.

Risk stratification of acute kidney injury (AKI) following ureteral stent insertion for colorectal surgery.

Ureteral stents have long been utilized during colorectal resections to assist in the identification of ureters intraoperatively and mitigate risk of ureteral injury. As these procedures have shifted toward robot-assisted laparoscopic methods, lighted stents have increasingly been used. The incidence of acute kidney injury (AKI) following bilateral ureteral stent placement has been reported to be as high as 41.9%. We sought to identify our single-institution risk and determine the extent to which age, sex, and stent type affected incidence of AKI. A retrospective analysis was performed at a single community hospital of all open and robotic-assisted laparoscopic colorectal surgeries from October 2012 to April 2022. If requested, ureteral stents were placed bilaterally by a urologist and later removed by the surgeon. Non-lighted stents used were 5 Fr whistle-tip (BARD); lighted stents were 6 Fr with a fiberoptic core (STRYKER). Kidney failure was described as a rise of creatinine to ≥ 1.5 times the preoperative value, per KDIGO guidelines. 633 consecutive colorectal surgeries were evaluated, with no stents placed in 237 cases, non-lighted stents placed in 137 cases, and lighted stents placed in 259 cases. No ureteral injuries were observed. Overall incidence of AKI for non-stented surgeries was 0.8% vs 5.8% for non-lighted stents and 5.8% for lighted stents. Patient age was the most significant factor in AKI incidence: for patients under 60, there was no statistical difference in AKI incidence for stented vs non-stented procedures (2.2% vs 1.1%). For patients over 60, the risk of AKI was 10.5% for stented vs 0.7% for non-stented. Female patients had statistically significant risk differences, with AKI incidence of 7.1% stented vs 0.0% non-stented. AKI completely resolved in all cases, regardless of cohort. In patients under age 60, the use of stents was not associated with an increased risk of AKI. For women and those over 60, stents pose a higher risk of transient AKI. Overall incidence of AKI in our larger and single-institution community hospital population was significantly lower than reported in other studies. No statistical difference was observed, overall, in AKI incidence between lighted and non-lighted stents.

Effectiveness and safety of new umbilical paramedian semilunaris approach for transverse abdominis plane block: a prospective, single-arm, observational, evaluation study.

The transversus abdominis plane (TAP) block is a widely used, safe and effective technique for abdominal surgery analgesia, but its range of blocking is not sufficient for some surgeries requiring a large incision. Here we present the novel concept of an ultrasound-guided linea semilunaris block, a modified approach to TAP block, which can potentially offer a wider blocking range. Patients undergoing open colorectal surgery at the Shanghai Jiaotong University Affiliated Sixth People's Hospital between May and July 2021 were enrolled to receive ultrasound-guided linea semilunaris block. All blocks were performed in the holding area of the operating theater under routine hemodynamic monitoring while patients were conscious with low-dose opioids. All patients were supine, and a linear probe identified the semilunar line as the connection between the transverse and rectus muscles. Next, 20 mL of 0.25% ropivacaine was injected in the semilunar line using the in-plane technique bilaterally. The main indicator of the blocking range was measured. Postoperatively, the visual analog score (VAS) from 4 to 24 h (every 2 h), the time of the first remedial analgesia, the bowel movement starting time and complications were also recorded. A total of 31 potentially eligible studies were identified for inclusion. The extent of the cutaneous sensory block was: 3.46±0.59 cm below the xiphoid, 1.74±0.37 cm above the symphysis pubis, 2.02±1.24 cm outside the left midclavicular line, and 2.19±1.25 cm outside the right midclavicular line. The highest and lowest median [interquartile range (IQR)] VAS pain scores were 4 [4-5] of 10 h and 2 [1-2] of 4 h postoperatively. The bowel movement starting time was 3.7±1.1 days after gastrointestinal surgery. There were four patients with nausea and vomiting but none had adverse reactions attributable to local anesthetic (LA) poisoning. The ultrasound-guided umbilical paramedian semilunaris approach to TAP block is a safe and effective technique in clinical practice, which may provide more effective analgesia than traditional TAP block for open colorectal surgery with a median abdominal incision. Further randomized controlled trials are needed to confirm our results.

Comparison of Laparoscopic Versus Open Resection in Management of Colorectal Carcinoma

Objective: is to compare the impact of laparoscopic and open colorectal surgery in terms of infection, hospital stay and blood loss. Study Design: Randomized controlled trial. Place and duration: Study was conducted at the general surgery department of Nishtar hospital, Multan from January 2020 to January 2021. Methodology: Three hundred and ten patients were enrolled in the study and divided into two groups. One group was treated with laparoscopic technique and the second group treated with open surgical technique. Main variables of study were infection rate, duration of hospital stay and mean blood loss. SPSS version 23 was used for data analysis. Mean and standard deviation for numerical data and frequency and percentages for categorical data were calculated. P value ≤0.05 was considered as significant. Results: In 16.8% patients of laparoscopic group, infection occurred and 20.6% patients in open group. But the difference was statistically insignificant, (p=0.382). The mean hospital stay in laparoscopic group was 11.21±2.53-day and14.78±3.01 days in open group. The difference was statistically significant. (p=0.000). Conclusion: Laparoscopic technique is associated with reduced rate of infection; hospital stay, and blood loss as compared to open surgery of colorectal carcinoma. Laparoscopic surgical method is preferred over open method.

Colorectal Surgery: Single Tertiary Center Experience

Objectives: Laparoscopic approach is nowadays being used widely for the treatment of various surgical diseases in many centers, but it has not considered as the gold standard in colorectal surgery yet.The aim of this study was to examine and compare the postoperative clinical and oncological outcomes of laparoscopic and open colorectal surgery in the light of literatüre. Methods: 526 patients who had colorectal cancer surgery in our clinic in between May 2015 and March 2023 were enrolled in this retrospective comparative study. Patients treated with open surgery were included in Group 1 (OS group) and ones treated laparoscopically includedin Group 2 (LS group). Demographics (age,sex), types of operations, ASA scores, evaluation of resected specimen, dissected lymph nodes, T invasion of tumors in groups, postoperative complications, operation time and hospital stay times and short-term morbidity and mortality were noted and compared with each other. Results: Patients in LS group had less blood loss compared with those in OS group (median 80 mL (range 0-1300) vs 155 mL (0–2000),p&lt;0•0001), although laparoscopic surgery lasted longer than did open surgery (p&lt;0•0001). The patients who underwent the laparoscopic surgery showed faster recovery then those who underwent open surgery, regarding first passing bowel gas (p=0.045), time of first bowel motion (p=0.04), time to resume normal diet (p=0.041), and time to ambulate independently (p=0.037). Hospital stay time was significantly shorter in Laparoscopy group (p&lt;0.001). Oncological satisfaction of resection as assessed by number of removed lymph nodes, distal resection margin did not differ between groups (p=0.564, p=0.698). Although wound infection was significantly higher in OS group (p&lt;0.001), other morbidity parameters and mortality after colectomy did not differ between two groups. Conclusion: Laparoscopic colorectal surgery gives satisfactory outcomes as compared to open surgery in many aspects such as clinical and oncological outcomes and early recovery. Considering the short-term outcomes of the present study, laparoscopic colorectal surgery in experienced hands seems to be safe and feasible for the treatment of the colorectal cancers.

Alvimopan is associated with favorable outcomes in open and minimally invasive colorectal surgery: a regional database analysis.

Alvimopan is a µ-opioid receptor antagonist associated with shorter time to gastrointestinal recovery in patients having open colorectal surgery. Data demonstrating the benefit of perioperative alvimopan for the minimally invasive surgical approach are inconsistent. The aim of this study is to determine colorectal surgery groups that benefit from perioperative alvimopan. This is a retrospective cohort analysis of colorectal surgery patients who had, and patients who did not have, perioperative alvimopan in the Michigan Surgical Quality Collaborative regional risk-adjusted database from 2018 through 2021. Main outcome measures were postoperative length of hospital stay, time to return of bowel function, and postoperative ileus. There were 10,010 patients (30.3% open, 40.5% laparoscopic, 12.7% hand-assist laparoscopic, 43.5% robotic) who met inclusion criteria-4919 received alvimopan in the perioperative period and 5091 did not. When compared to those not receiving alvimopan, unadjusted outcomes showed that the alvimopan group had significantly shorter postoperative length of stay (4.75days vs 5.5days, p < 0.001), shorter time to return of bowel function (1.61days vs 2.01days, p < 0.001) and less postoperative ileus (5.45% vs 7.94%, p < 0.001). After adjustment, regression models confirmed that alvimopan was associated with an 9.6% reduction in hospital length of stay (p < 0.001), a 14.9% shorter time to return of bowel function (p < 0.001), and a 42.1% reduction in postoperative ileus (p < 0.001). Subgroup analysis showed significant benefit of alvimopan for all three outcomes in patients having the minimally invasive approach. Alvimopan is associated with shorter hospital length of stay, shorter time to return of bowel function, and decreased postoperative ileus when administered to patients undergoing colorectal surgery. Benefit is not limited to the open approach and includes minimally invasive laparoscopic and robotic colorectal procedures.

EVALUATION OF COLORECTAL CANCER SURGERIES PERFORMED IN THREE YEARS

Amaç: Bu çalışma, laparoskopik veya açık cerrahi uygulanan kolorektal kanserli hastaların klinikopatolojik özelliklerini, cerrahi özelliklerini ve kısa dönem sonuçlarını sunmayı amaçlamıştır.&#x0D; Gereç Ve Yöntem: Ocak 2017 ile Aralık 2020 tarihleri arasında XXX Genel Cerrahi Anabilim Dalı'nda ameliyat edilen kolorektal kanser olgularının verileri retrospektif olarak incelendi. Tümör lokalizasyonu, patolojik tanılar, operasyon tipleri, tümör, tümör invazyonu, lenf nodu özellikleri, ek tedaviler, hemogram testleri, hastanede kalış süresi, takip süresi, postoperatif komplikasyonlar, nüks ve mortalite analiz edildi.&#x0D; Bulgular: Hastaların yaşları ortanca 66 olmak üzere 36 ile 87 arasındaydı. Olguların %79,55'inde açık cerrahi, %20,45'inde laparoskopik cerrahi uygulandı. Ortalama hastanede kalış süresi 6 gündü (IQR: 5-8). Ortalama takip süresi 20.52 ± 10.49 aydı. Olguların %16.67'sinde ameliyat sonrası enfeksiyon, %6.82'sinde ameliyat sonrası kaçak gözlendi. Altı hastada (%5.61) nüks görüldü. Mortalite oranı %17,41, erken mortalite (≤30 gün) oranı ise %3,03 idi.&#x0D; Sonuç: Laparoskopik ve açık kolorektal cerrahi ile ilgili daha fazla yayına ihtiyaç vardır. Kliniklerin kolorektal cerrahide elde ettikleri sonuçları ve deneyimlerini paylaşmalarının önemli olduğunu, sonuçlarımızın literatüre katkı sağlayacağının yanı sıra ülkemizde giderek yaygınlaşan genel cerrahi kliniklerinin kurulmasına da katkı sağlayacağına inanıyoruz.

A Comparison between Laparoscopic and Open Colorectal Surgery Postoperative Opioid Use in Our Enhanced Recovery after Surgery Patients

Journal of the American College of Surgeons 236(5):p S49, May 2023. | DOI: 10.1097/01.XCS.0000932708.18915.1c

Influence of opioid analgesia type on circulating tumor cells in open colorectal cancer surgery (POACC-1): study protocol for a prospective randomized multicenter controlled trial

BackgroundOpioids and epidural analgesia are a mainstay of perioperative analgesia but their influence on cancer recurrence remains unclear. Based on retrospective data, we found that cancer recurrence following colorectal cancer surgery correlates with the number of circulating tumor cells (CTCs) in the early postoperative period. Also, morphine- but not piritramide-based postoperative analgesia increases the presence of CTCs and shortens cancer-specific survival. The influence of epidural analgesia on CTCs has not been studied yet.MethodsWe intend to enroll 120 patients in four centers in this prospective randomized controlled trial. The study protocol has been approved by Ethics Committees in all participating centers. Patients undergoing radical open colorectal cancer surgery are randomized into epidural, morphine, and piritramide groups for perioperative analgesia. The primary outcome is the difference in the number of CTCs in the peripheral blood before surgery, on the second postoperative day, and 2–4 weeks after surgery. The number of CTCs is measured using molecular biology methods. Perioperative care is standardized, and relevant data is recorded. A secondary outcome, if feasible, would be the expression and activity of various receptor subtypes in cancer tissue. We intend to perform a 5-year follow-up with regard to metastasis development.DiscussionThe mode of perioperative analgesia favorably affecting cancer recurrence would decrease morbidity/mortality. To identify such techniques, trials with long-term follow-up periods seem suboptimal. Given complex oncological therapeutic strategies, such trials likely disable the separation of perioperative analgesia effects from other factors. We believe that early postoperative CTCs presence/dynamics may serve as a sensitive marker of various perioperative interventions´ influences on cancer recurrence. Importantly, it is unbiased to the influence of long-term factors and minimally invasive. Analysis of opioid/cannabinoid receptor subtypes in cancer tissue would improve understanding of underlying mechanisms and promote personalization of treatment. We are not aware of any similar ongoing studies.Trial registration numberNCT03700411, registration date: October 3, 2018. Study status: recruiting.

Effects of Preoperative Oral Carbohydrate Loading on Neutrophil/Lymphocyte Ratio and Postoperative Complications following Colorectal Cancer Surgery: A Randomized Controlled Study

Introduction: Preoperative carbohydrate oral (CHO) drinks attenuate the surgical stress response; however, the effects of CHO supplementation on the neutrophil-to-lymphocyte ratio (NLR) as an inflammatory and immunology-based predictor remain unclear. This study evaluated the effects of preoperative CHO loading on NLR values and complications following open colorectal surgery compared with a conventional fasting protocol. Methods: Sixty eligible participants having planned for routine and open colorectal cancer surgery from May 2020 to January 2022 were prospectively and randomly allocated to either the control (fasting) group, whose members discontinued oral intake beginning the midnight before surgery, or the intervention (CHO) group, whose members consumed a CHO solution the night before surgery and 2 h prior to anaesthesia. NLR was assessed at 06:00 h before surgery (baseline) and at 06:00 h on postoperative days 1, 3, and 5. The incidence and severity of postoperative complications were assessed by Clavien-Dindo Classification up to postoperative day 30. All data were analysed using descriptive statistics. Results: Postoperative NLR and delta NLR values were significantly higher in controls (p < 0.001; p < 0.001). Control group participants also demonstrated grade IV (n = 5; 16.7%, p < 0.01) and grade V (n = 1; 3.3%, p < 0.313) postoperative complications. There were no major postoperative complications in the CHO group. Conclusion: Preoperative CHO consumption reduced postoperative NLR values and the incidence and severity of postoperative complications following open colorectal surgery, compared with a preoperative fasting protocol. Preoperative carbohydrate loading may improve recovery following colorectal cancer surgery.

Thoracic epidural analgesia vs. patient-controlled intravenous analgesia for patients undergoing open or laparoscopic colorectal cancer surgery

BACKGROUND Thoracic epidural analgesia (TEA) is an invasive technique with potential side effects but is widely used in enhanced recovery after surgery (ERAS) programmes in colorectal cancer surgery. The effects of TEA on postoperative length of hospital stay (LOS) or morbidity is still debated. OBJECTIVES The main objective was to evaluate the postoperative analgesic effectiveness of TEA compared with patient-controlled intravenous analgesia (PCIA) after open or laparoscopic colorectal surgery, and whether TEA contributes to enhanced recovery. DESIGN A retrospective single-centre, observational study. SETTING Dutch tertiary-care university hospital. PATIENTS All consecutive adult patients undergoing colorectal cancer surgery from 1 January 2014 to 31 December 2016, with ASA status I-IV, were included. Exclusion criteria were hypersensitivity to opioid or local anaesthetic substances, or the use of multiple secondary anaesthetic techniques. MAIN OUTCOME MEASURES The primary outcome, postoperative pain assessed with a Numeric Rating Scale on postoperative days 1 to 3 inclusive. Secondary endpoints were LOS, the incidence of epidural related side effects, major complications and the 5-year survival rate. Using linear mixed models, pain scores were compared between patients who received TEA and PCIA. RESULTS Of 422 enrolled patients, 110 (32%) received TEA and 234 (68%) PCIA. Patients in the TEA group had lower pain scores: estimated NRS difference at rest; -0.79; 95% CI, -1.1 to -0.49; P &lt; 0.001 and during movement -1.06; 95% CI, -1.39 to -0.73; P &lt; 0.001. LOS, 30-day complication rate and overall survival at 5 years did not differ between the groups. CONCLUSIONS TEA in open or laparoscopic colorectal surgery is associated with moderately better postoperative pain control but does not affect LOS, postoperative morbidity, mortality nor long-term survival. The current clinical indication for TEA in colorectal surgery remains unchanged. TRIAL REGISTRATION International clinical trial registration number: ISRCTN11426678; retrospectively registered 26 February 2021.